/* ============================================
   GRD ISI SİSTEMLERİ - Main Stylesheet
   Corporate, Professional Industrial Design
   ============================================ */

:root {
    /* Brand Colors - Bordo & Mavi */
    --color-burgundy: #8B1E3F;
    --color-burgundy-dark: #6b0f2b;
    --color-burgundy-light: #b52a52;
    /* Bordo aliases - eski kod uyumluluğu için */
    --color-bordo: #8B1E3F;
    --color-bordo-dark: #6b0f2b;
    --color-bordo-light: #b52a52;
    --color-navy: #1E3A5F;
    --color-navy-dark: #152a42;
    --color-navy-light: #2d4972;
    --color-steel: #4a6388;
    --color-steel-light: #6b86b0;
    
    /* Neutrals */
    --color-white: #ffffff;
    --color-cream: #faf8f5;
    --color-gray-50: #f7f8fa;
    --color-gray-100: #edf0f4;
    --color-gray-200: #d8dde6;
    --color-gray-300: #b6bfcc;
    --color-gray-400: #8a95a8;
    --color-gray-500: #5e6a80;
    --color-gray-600: #404c61;
    --color-gray-700: #2a3447;
    --color-gray-800: #1a2230;
    --color-gray-900: #0f1520;
    
    /* Accents */
    --color-accent-heat: #ff9d2f;
    --color-accent-cool: #2f6bbf;
    --color-success: #2a7b4f;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Manrope', -apple-system, sans-serif;
    
    /* Spacing */
    --container-max: 1280px;
    --section-py: clamp(4rem, 8vw, 7rem);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(21, 42, 66, 0.08);
    --shadow-md: 0 4px 20px rgba(21, 42, 66, 0.10);
    --shadow-lg: 0 12px 40px rgba(21, 42, 66, 0.12);
    --shadow-xl: 0 20px 60px rgba(21, 42, 66, 0.15);
    
    /* Transitions */
    --trans-fast: 150ms ease;
    --trans-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --trans-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
    max-width: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-gray-700);
    background: var(--color-white);
    overflow-x: hidden;
    max-width: 100%;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-navy-dark);
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.875rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.6rem); }
h4 { font-size: 1.2rem; font-weight: 700; font-family: var(--font-body); }
h5 { font-size: 1rem; font-weight: 700; font-family: var(--font-body); text-transform: uppercase; letter-spacing: 0.05em; }

p { margin-bottom: 1rem; }

a {
    color: var(--color-burgundy);
    text-decoration: none;
    transition: color var(--trans-fast);
}

a:hover { color: var(--color-burgundy-dark); }

img, svg { max-width: 100%; display: block; }

ul { list-style: none; }

/* ============================================
   Container & Layout
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: var(--section-py) 0;
}

/* ============================================
   Top Bar
   ============================================ */

.top-bar {
    background: var(--color-navy-dark);
    color: var(--color-gray-100);
    padding: 0.5rem 0;
    font-size: 0.825rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.top-info {
    display: flex;
    gap: 1.75rem;
    flex-wrap: wrap;
}

.top-info span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-gray-200);
}

.top-info svg {
    color: var(--color-burgundy-light);
    opacity: 0.9;
}

.top-langs {
    display: flex;
    gap: 0.5rem;
}

.lang {
    color: var(--color-gray-300);
    padding: 0.15rem 0.55rem;
    border-radius: 3px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.lang.active, .lang:hover {
    background: var(--color-burgundy);
    color: white;
}

/* ============================================
   Header
   ============================================ */

.header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--color-gray-100);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 1.5rem;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-navy-dark);
    flex-shrink: 0;
}

.logo svg { flex-shrink: 0; }

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-main {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    letter-spacing: 0.02em;
}

.logo-sub {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-burgundy);
    letter-spacing: 0.15em;
    margin-top: 2px;
}

.main-nav ul {
    display: flex;
    gap: 0.1rem;
    align-items: center;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav > ul > li > a {
    display: block;
    padding: 0.5rem 0.6rem;
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: 0.82rem;
    border-radius: 6px;
    transition: all var(--trans-base);
    white-space: nowrap;
}

.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active {
    color: var(--color-burgundy);
    background: rgba(139, 30, 63, 0.06);
}

.main-nav .arrow {
    font-size: 0.7rem;
    margin-left: 0.15rem;
    transition: transform var(--trans-base);
}

.has-dropdown:hover .arrow {
    transform: rotate(180deg);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: white;
    box-shadow: var(--shadow-lg);
    border-radius: 10px;
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--trans-base);
    border: 1px solid var(--color-gray-100);
    display: block !important;
    flex-direction: column !important;
    gap: 0 !important;
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown li {
    width: 100%;
}

.dropdown li a {
    display: block;
    padding: 0.6rem 0.85rem;
    color: var(--color-gray-700);
    font-size: 0.88rem;
    border-radius: 6px;
    transition: all var(--trans-fast);
}

.dropdown li a:hover {
    background: var(--color-gray-50);
    color: var(--color-burgundy);
    padding-left: 1.1rem;
}

.nav-cta {
    background: var(--color-burgundy);
    color: white !important;
    padding: 0.65rem 1.35rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--trans-base);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
}

.nav-cta:hover {
    background: var(--color-burgundy-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 30, 63, 0.3);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-navy-dark);
    border-radius: 1px;
    transition: all var(--trans-base);
}

.nav-close { display: none; }
.mobile-only { display: none; }

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    background: linear-gradient(135deg, #0f1f35 0%, #1E3A5F 50%, #2d4972 100%);
    color: white;
    overflow: hidden;
    padding: clamp(3rem, 6vw, 5rem) 0 clamp(3rem, 6vw, 5rem);
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(139, 30, 63, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(107, 134, 176, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M0 0h20v20H0zM20 20h20v20H20z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.steam-particle {
    position: absolute;
    background: radial-gradient(circle, rgba(255,255,255,0.25) 0%, transparent 70%);
    border-radius: 50%;
    animation: steamRise 12s infinite ease-out;
}

.s1 { width: 80px; height: 80px; left: 10%; bottom: -80px; animation-delay: 0s; }
.s2 { width: 120px; height: 120px; left: 30%; bottom: -120px; animation-delay: 3s; animation-duration: 15s; }
.s3 { width: 100px; height: 100px; left: 70%; bottom: -100px; animation-delay: 6s; animation-duration: 14s; }
.s4 { width: 90px; height: 90px; left: 85%; bottom: -90px; animation-delay: 2s; animation-duration: 13s; }
.s5 { width: 60px; height: 60px; left: 50%; bottom: -60px; animation-delay: 5s; animation-duration: 11s; }

@keyframes steamRise {
    0% { transform: translateY(0) scale(1); opacity: 0; }
    10% { opacity: 0.6; }
    50% { opacity: 0.4; }
    100% { transform: translateY(-110vh) scale(2); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(139, 30, 63, 0.2);
    color: #ffb4c9;
    padding: 0.45rem 1.1rem;
    border-radius: 30px;
    font-size: 0.825rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: 1px solid rgba(139, 30, 63, 0.35);
    margin-bottom: 1.5rem;
    animation: fadeUp 0.8s ease-out;
}

.hero h1 {
    color: white;
    margin-bottom: 1.35rem;
    animation: fadeUp 0.8s ease-out 0.1s both;
}

.hero h1 .accent {
    background: linear-gradient(135deg, #ff7ba0, #b52a52);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-style: italic;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.35vw, 1.125rem);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
    max-width: 580px;
    line-height: 1.7;
    animation: fadeUp 0.8s ease-out 0.2s both;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    animation: fadeUp 0.8s ease-out 0.3s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    animation: fadeUp 0.8s ease-out 0.4s both;
}

.stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    font-weight: 700;
    color: white;
    line-height: 1;
    margin-bottom: 0.35rem;
}

.stat-num em {
    font-size: 0.55em;
    font-style: normal;
    color: var(--color-burgundy-light);
    font-weight: 600;
    margin-left: 3px;
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.65);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

.hero-visual {
    position: relative;
    animation: fadeInScale 1s ease-out 0.3s both;
}

.hero-boiler {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.4));
}

.spec-tag {
    animation: floatTag 3s ease-in-out infinite;
}

.spec-tag:nth-child(2) { animation-delay: 1.5s; }

@keyframes floatTag {
    0%, 100% { transform: translate(50px, 200px); }
    50% { transform: translate(50px, 195px); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, white, transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.65rem;
    border-radius: 6px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: all var(--trans-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-burgundy);
    color: white !important;
}

.btn-primary:hover {
    background: var(--color-burgundy-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(139, 30, 63, 0.4);
    color: white !important;
}

.btn-secondary {
    background: var(--color-navy);
    color: white !important;
}

.btn-secondary:hover {
    background: var(--color-navy-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 58, 95, 0.35);
    color: white !important;
}

.btn-ghost {
    background: transparent;
    color: white !important;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    color: white !important;
}

.btn-light {
    background: white;
    color: var(--color-burgundy) !important;
    border-color: white;
}

.btn-light:hover {
    background: transparent;
    color: white !important;
    border-color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.02rem;
}

/* ============================================
   Trust Bar
   ============================================ */

.trust-bar {
    background: var(--color-gray-50);
    padding: 2.25rem 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.trust-items {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--color-gray-600);
}

.trust-item svg {
    color: var(--color-burgundy);
    flex-shrink: 0;
}

.trust-item strong {
    display: block;
    color: var(--color-navy-dark);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2px;
}

.trust-item span {
    font-size: 0.8rem;
    color: var(--color-gray-500);
    line-height: 1.3;
}

/* ============================================
   Section Heading
   ============================================ */

.section-head {
    max-width: 760px;
    margin-bottom: 3.5rem;
}

.section-head.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    color: var(--color-burgundy);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 0.85rem;
    position: relative;
    padding-left: 2rem;
}

.section-tag::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 24px;
    height: 2px;
    background: var(--color-burgundy);
    transform: translateY(-50%);
}

.section-tag.light {
    color: rgba(255, 255, 255, 0.9);
}

.section-tag.light::before {
    background: rgba(255, 255, 255, 0.8);
}

.section-head h2 {
    margin-bottom: 1rem;
}

.section-head h2 em {
    font-style: italic;
    color: var(--color-burgundy);
    font-weight: 500;
}

.section-head p {
    color: var(--color-gray-500);
    font-size: 1.05rem;
    line-height: 1.75;
    max-width: 640px;
}

.section-head.center p {
    margin-left: auto;
    margin-right: auto;
}

.section-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ============================================
   Products Section
   ============================================ */

.products-section {
    background: white;
    position: relative;
}

.products-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 400px;
    background: linear-gradient(180deg, var(--color-gray-50) 0%, transparent 100%);
    pointer-events: none;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
}

.product-card {
    background: white;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: all var(--trans-base);
    color: inherit;
    display: flex;
    flex-direction: column;
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-burgundy-light);
}

.product-card.featured {
    grid-column: span 2;
    grid-row: span 2;
    background: linear-gradient(135deg, #fafbfd 0%, #f0f3f8 100%);
}

.product-card.featured .product-visual {
    min-height: 340px;
}

.product-card.featured .product-content {
    padding: 2rem 2.25rem;
}

.product-visual {
    background: linear-gradient(135deg, #eef2f8 0%, #dde4ef 100%);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    position: relative;
    overflow: hidden;
}

.product-visual::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 30, 63, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.product-visual svg {
    width: 100%;
    height: auto;
    max-width: 280px;
    filter: drop-shadow(0 10px 20px rgba(30, 58, 95, 0.15));
    transition: transform var(--trans-slow);
}

.product-card:hover .product-visual svg {
    transform: scale(1.06);
}

.product-content {
    padding: 1.35rem 1.5rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-badge {
    display: inline-block;
    background: var(--color-burgundy);
    color: white;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.85rem;
    align-self: flex-start;
}

.product-badge.hot {
    background: var(--color-accent-heat);
    color: var(--color-gray-900);
}

.product-content h3 {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    margin-bottom: 0.55rem;
    line-height: 1.3;
}

.product-card.featured .product-content h3 {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 600;
}

.product-content p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.product-specs {
    padding: 0.85rem 0;
    border-top: 1px solid var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-100);
    margin-bottom: 1rem;
}

.product-specs li {
    font-size: 0.82rem;
    color: var(--color-gray-600);
    padding: 0.2rem 0;
    display: flex;
    justify-content: space-between;
}

.product-specs li strong {
    color: var(--color-gray-700);
    font-weight: 600;
}

.product-link {
    margin-top: auto;
    color: var(--color-burgundy);
    font-weight: 700;
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: gap var(--trans-base);
}

.product-card:hover .product-link {
    gap: 0.5rem;
}

/* ============================================
   Sera Section
   ============================================ */

.sera-section {
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 50%, var(--color-burgundy-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.sera-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill-rule='evenodd' fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.sera-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.sera-content h2 {
    color: white;
    margin-bottom: 1.25rem;
}

.sera-content h2 em {
    color: var(--color-burgundy-light);
    font-style: italic;
    font-weight: 500;
}

.sera-content > p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.02rem;
    margin-bottom: 2rem;
    line-height: 1.75;
}

.sera-features {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.sera-feat {
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
}

.feat-icon {
    width: 52px;
    height: 52px;
    background: rgba(139, 30, 63, 0.25);
    border: 1px solid rgba(181, 42, 82, 0.5);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-burgundy-light);
    flex-shrink: 0;
}

.sera-feat h4 {
    color: white;
    margin-bottom: 0.35rem;
    font-size: 1.1rem;
}

.sera-feat p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    line-height: 1.55;
    margin: 0;
}

.sera-visual {
    position: relative;
}

.sera-visual svg {
    width: 100%;
    filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.3));
    border-radius: 12px;
    overflow: hidden;
}

/* ============================================
   Why Us Section
   ============================================ */

.why-section {
    background: var(--color-gray-50);
    position: relative;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.why-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    position: relative;
    border: 1px solid var(--color-gray-100);
    transition: all var(--trans-base);
}

.why-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.why-num {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-burgundy);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 0.5rem;
    position: absolute;
    top: 1.5rem;
    right: 1.75rem;
}

.why-card h3 {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-navy-dark);
}

.why-card p {
    color: var(--color-gray-500);
    font-size: 0.93rem;
    line-height: 1.7;
    margin: 0;
}

/* ============================================
   Sectors Section
   ============================================ */

.sectors-section {
    background: white;
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.sector-item {
    padding: 1.5rem;
    background: var(--color-gray-50);
    border-radius: 10px;
    text-align: center;
    transition: all var(--trans-base);
    border: 1px solid transparent;
}

.sector-item:hover {
    background: white;
    border-color: var(--color-burgundy);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.sector-item svg {
    color: var(--color-burgundy);
    margin: 0 auto 0.85rem;
}

.sector-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    margin-bottom: 0.35rem;
}

.sector-item p {
    font-size: 0.825rem;
    color: var(--color-gray-500);
    line-height: 1.5;
    margin: 0;
}

/* ============================================
   Process Section
   ============================================ */

.process-section {
    background: linear-gradient(180deg, var(--color-gray-50) 0%, white 100%);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1rem;
    position: relative;
}

.process-timeline::before {
    content: "";
    position: absolute;
    top: 26px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: linear-gradient(to right, var(--color-burgundy), var(--color-navy));
    opacity: 0.2;
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-num {
    width: 52px;
    height: 52px;
    background: white;
    border: 2px solid var(--color-burgundy);
    color: var(--color-burgundy);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 auto 1rem;
    transition: all var(--trans-base);
}

.process-step:hover .step-num {
    background: var(--color-burgundy);
    color: white;
    transform: scale(1.1);
}

.process-step h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.process-step p {
    font-size: 0.8rem;
    color: var(--color-gray-500);
    line-height: 1.55;
    margin: 0;
}

/* ============================================
   References Section
   ============================================ */

.references-section {
    background: var(--color-gray-50);
}

.refs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.ref-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--color-burgundy);
    transition: all var(--trans-base);
}

.ref-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.ref-icon {
    font-size: 2.2rem;
    margin-bottom: 0.85rem;
}

.ref-card h4 {
    color: var(--color-navy-dark);
    margin-bottom: 0.5rem;
}

.ref-meta {
    font-size: 0.8rem;
    color: var(--color-burgundy);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.ref-card > p:last-child {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   Testimonials
   ============================================ */

.testimonials-section {
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.testimonial-card {
    background: var(--color-gray-50);
    padding: 2.25rem 2rem 1.75rem;
    border-radius: 14px;
    position: relative;
    transition: all var(--trans-base);
}

.testimonial-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.test-quote {
    position: absolute;
    top: -10px;
    left: 20px;
    font-family: var(--font-display);
    font-size: 5rem;
    line-height: 1;
    color: var(--color-burgundy);
    opacity: 0.3;
    font-weight: 700;
}

.testimonial-card p {
    font-size: 0.95rem;
    color: var(--color-gray-700);
    line-height: 1.75;
    margin-bottom: 1.35rem;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.test-author {
    border-top: 1px solid var(--color-gray-200);
    padding-top: 1rem;
}

.test-author strong {
    display: block;
    color: var(--color-navy-dark);
    font-size: 0.95rem;
    font-weight: 700;
}

.test-author span {
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

/* ============================================
   Blog Section
   ============================================ */

.blog-section {
    background: var(--color-gray-50);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.blog-card {
    background: white;
    border-radius: 14px;
    overflow: hidden;
    color: inherit;
    transition: all var(--trans-base);
    border: 1px solid var(--color-gray-100);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    color: inherit;
}

.blog-visual {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.blog-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2) 0%, transparent 60%);
}

.blog-content {
    padding: 1.5rem;
}

.blog-date {
    display: block;
    font-size: 0.78rem;
    color: var(--color-burgundy);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.65rem;
}

.blog-content h4 {
    color: var(--color-navy-dark);
    margin-bottom: 0.75rem;
    font-size: 1.08rem;
    line-height: 1.4;
}

.blog-content p {
    font-size: 0.88rem;
    color: var(--color-gray-500);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.blog-read {
    color: var(--color-burgundy);
    font-weight: 700;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: gap var(--trans-base);
}

.blog-card:hover .blog-read {
    gap: 0.5rem;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    background: white;
    padding: 3rem 0 5rem;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-burgundy) 0%, var(--color-burgundy-dark) 50%, var(--color-navy-dark) 100%);
    color: white;
    padding: 3.5rem;
    border-radius: 18px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.cta-box::before {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-text h2 {
    color: white;
    margin-bottom: 0.85rem;
}

.cta-text h2 em {
    color: #ff7ba0;
    font-style: italic;
    font-weight: 600;
}

.cta-text p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.02rem;
    line-height: 1.7;
    margin: 0;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    position: relative;
    z-index: 1;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--color-navy-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 4.5rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1.25rem;
}

.footer-logo-main {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 700;
    color: white;
    display: block;
    line-height: 1;
}

.footer-logo-sub {
    font-size: 0.68rem;
    color: var(--color-burgundy-light);
    letter-spacing: 0.15em;
    font-weight: 700;
    display: block;
    margin-top: 3px;
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    max-width: 340px;
}

.footer-social {
    display: flex;
    gap: 0.65rem;
}

.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--trans-base);
}

.footer-social a:hover {
    background: var(--color-burgundy);
    color: white;
    transform: translateY(-2px);
}

.footer-col h5 {
    color: white;
    margin-bottom: 1.25rem;
    font-size: 0.88rem;
    letter-spacing: 0.1em;
}

.footer-col ul li {
    margin-bottom: 0.55rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.88rem;
    transition: all var(--trans-fast);
}

.footer-col ul li a:hover {
    color: white;
    padding-left: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.fc-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.55;
}

.fc-item svg {
    color: var(--color-burgundy-light);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-bottom {
    padding: 1.75rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a:hover {
    color: white;
}

.footer-seo {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.8;
}

/* ============================================
   WhatsApp Float
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 28px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 18px 0 14px;
    height: 50px;
    background: #25D366;
    color: white;
    border-radius: 50px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 9998;
    transition: all 0.2s ease;
    animation: pulse 2s infinite;
    text-decoration: none;
}
.whatsapp-float:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(37, 211, 102, 0.5);
    color: white;
}
.whatsapp-float .float-label {
    font-size: 13px;
    font-weight: 700;
    font-family: var(--font-body);
    letter-spacing: 0.2px;
    white-space: nowrap;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: white;
}

@keyframes pulse {
    0% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ============================================
   Page Headers (for inner pages)
   ============================================ */

.page-header {
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 50%, var(--color-burgundy-dark) 100%);
    color: white;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(139, 30, 63, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(107, 134, 176, 0.15) 0%, transparent 50%);
}

.page-header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.breadcrumb {
    display: flex;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
    color: white;
}

.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.4);
}

.page-header h1 {
    color: white;
    margin-bottom: 1rem;
}

.page-header p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    line-height: 1.7;
    margin: 0;
}

/* ============================================
   Product Detail Pages
   ============================================ */

.product-detail {
    padding: 4rem 0;
    background: white;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
    align-items: start;
}

.product-gallery {
    background: transparent;
    border-radius: 16px;
    padding: 0;
    position: sticky;
    top: 100px;
    overflow: hidden;
}

.product-info .product-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.product-tag {
    background: var(--color-burgundy);
    color: white;
    padding: 0.3rem 0.85rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.product-info h1 {
    margin-bottom: 1rem;
    color: var(--color-navy-dark);
}

.product-info .lead {
    font-size: 1.1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.tech-specs {
    background: var(--color-gray-50);
    border-radius: 12px;
    padding: 1.75rem;
    margin-bottom: 2rem;
}

.tech-specs h3 {
    font-size: 1.1rem;
    font-family: var(--font-body);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-navy-dark);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--color-gray-200);
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table td {
    padding: 0.75rem 0;
    font-size: 0.92rem;
}

.spec-table td:first-child {
    color: var(--color-gray-500);
    font-weight: 500;
    width: 50%;
}

.spec-table td:last-child {
    color: var(--color-navy-dark);
    font-weight: 700;
    text-align: right;
}

.features-list {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.features-list .feat-item {
    display: flex;
    gap: 0.85rem;
    align-items: flex-start;
    padding: 1rem;
    background: var(--color-gray-50);
    border-radius: 10px;
    border-left: 3px solid var(--color-burgundy);
}

.features-list .feat-item svg {
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

.features-list .feat-item h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    color: var(--color-navy-dark);
}

.features-list .feat-item p {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin: 0;
    line-height: 1.55;
}

.detail-ctas {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
}

.content-block {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.content-block h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.85rem;
}

.content-block h3 {
    margin-top: 2rem;
    margin-bottom: 0.85rem;
    font-size: 1.3rem;
    font-family: var(--font-body);
    font-weight: 700;
}

.content-block p {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--color-gray-600);
    margin-bottom: 1.25rem;
}

.content-block ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.content-block ul li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.65rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

.content-block ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65rem;
    width: 8px;
    height: 8px;
    background: var(--color-burgundy);
    border-radius: 50%;
}

.info-box {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, rgba(139, 30, 63, 0.03) 100%);
    border-left: 4px solid var(--color-burgundy);
    padding: 1.75rem 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.info-box h4 {
    color: var(--color-burgundy);
    margin-bottom: 0.75rem;
}

.info-box p {
    margin: 0;
    font-size: 0.95rem;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 0.45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-gray-200);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-gray-700);
    background: white;
    transition: all var(--trans-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-burgundy);
    box-shadow: 0 0 0 3px rgba(139, 30, 63, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ============================================
   Tables
   ============================================ */

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.92rem;
}

.data-table th,
.data-table td {
    padding: 0.85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-gray-100);
}

.data-table th {
    background: var(--color-navy-dark);
    color: white;
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.data-table th:first-child { border-top-left-radius: 8px; }
.data-table th:last-child { border-top-right-radius: 8px; }

.data-table tr:nth-child(even) {
    background: var(--color-gray-50);
}

.data-table tr:hover {
    background: rgba(139, 30, 63, 0.04);
}

.data-table td:first-child {
    font-weight: 600;
    color: var(--color-navy-dark);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .product-card.featured {
        grid-column: span 2;
    }
    
    .trust-items {
        grid-template-columns: repeat(5, 1fr);
        gap: 1rem;
    }
    
    .sectors-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .process-timeline {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .process-timeline::before { display: none; }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-ctas { justify-content: center; }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-card.featured {
        grid-column: span 2;
        grid-row: auto;
    }
    
    .product-card.featured .product-visual {
        min-height: 200px;
    }
    
    .sera-grid,
    .cta-box,
    .product-detail-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-gallery { position: static; }
    
    .why-grid,
    .refs-grid,
    .testimonials-grid,
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sectors-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-timeline {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-actions { flex-direction: row; }
}

@media (max-width: 768px) {
    .top-bar { display: none; }
    
    .top-info { display: none; }
    
    .nav-toggle {
        display: flex;
    }
    
    .desktop-only { display: none !important; }
    .mobile-only { display: block; }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 360px;
        height: 100vh;
        background: white;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
        padding: 5rem 2rem 2rem;
        overflow-y: auto;
        transition: right var(--trans-slow);
        z-index: 200;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .nav-close {
        display: block;
        position: absolute;
        top: 1rem;
        right: 1.5rem;
        background: none;
        border: none;
        font-size: 2rem;
        color: var(--color-navy-dark);
        cursor: pointer;
        width: 40px;
        height: 40px;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
        align-items: stretch;
    }
    
    .main-nav ul li {
        border-bottom: 1px solid var(--color-gray-100);
    }
    
    .main-nav > ul > li > a {
        padding: 1rem 0.5rem;
        font-size: 1rem;
    }
    
    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0 0 1rem 1rem;
        display: none !important;
    }
    
    .has-dropdown.open .dropdown {
        display: block !important;
    }
    
    .products-grid,
    .why-grid,
    .refs-grid,
    .testimonials-grid,
    .blog-grid,
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card.featured {
        grid-column: auto;
    }
    
    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .trust-items {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        padding: 2rem;
    }
    
    .cta-actions { flex-direction: column; }
    
    .form-row { grid-template-columns: 1fr; }
    
    .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero { min-height: auto; padding: 2rem 0 3rem; }
    .section { padding: 3.5rem 0; }
    .section-head { margin-bottom: 2.5rem; }
    
    .logo-main { font-size: 1.4rem; }
    .logo-sub { font-size: 0.6rem; }
    
    .btn { padding: 0.75rem 1.25rem; font-size: 0.88rem; }
    
    .product-content { padding: 1.15rem; }
    .ref-card, .testimonial-card { padding: 1.5rem; }
    
    .cta-box { padding: 1.75rem; }
    .process-timeline { grid-template-columns: 1fr; }
}

/* ============================================
   Animations on Scroll
   ============================================ */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .top-bar, .header, .footer, .whatsapp-float, .hero-bg { display: none; }
    body { color: black; }
}

/* ============================================
   Referanslar Page
   ============================================ */

.stats-section {
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-bordo) 100%);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-box .stat-num {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: #ffc857;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-box .stat-label {
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.9;
}

.ref-sector-block {
    margin-bottom: 4rem;
}

.sector-heading {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-navy);
    border-bottom: 2px solid rgba(139, 30, 63, 0.1);
    padding-bottom: 1rem;
}

.sector-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.4rem;
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.ref-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.ref-card {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.ref-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.ref-img {
    width: 100%;
    height: 180px;
    overflow: hidden;
}

.ref-body {
    padding: 1.5rem;
}

.ref-body h4 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-navy);
}

.ref-body .ref-meta {
    color: var(--color-bordo);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ref-body p {
    color: #555;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   Blog Page & Blog Cards
   ============================================ */

.blog-card-lg {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.blog-card-lg:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.12);
}

.blog-card-lg .blog-img {
    display: block;
    width: 100%;
    height: 260px;
    overflow: hidden;
}

.blog-card-lg .blog-body {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: 0.82rem;
    color: #777;
    margin-bottom: 0.25rem;
    flex-wrap: wrap;
}

.blog-tag {
    background: var(--color-bordo);
    color: #fff;
    padding: 0.3rem 0.9rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.blog-card-lg h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    line-height: 1.25;
    margin: 0;
}

.blog-card-lg h2 a {
    color: var(--color-navy);
    text-decoration: none;
    transition: color 0.2s;
}

.blog-card-lg h2 a:hover { color: var(--color-bordo); }

.blog-card-lg p {
    color: #555;
    line-height: 1.65;
    margin: 0;
}

.blog-link {
    color: var(--color-bordo);
    font-weight: 700;
    text-decoration: none;
    margin-top: auto;
    display: inline-block;
    font-size: 0.95rem;
}

.blog-link:hover { text-decoration: underline; }

/* ============================================
   Blog Article (Post Detail)
   ============================================ */

.blog-article {
    padding: 3rem 0 5rem;
}

.blog-article .container {
    max-width: 820px;
}

.article-meta {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    font-size: 0.85rem;
    color: #777;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.blog-article h1 {
    font-family: var(--font-display);
    font-size: 2.6rem;
    line-height: 1.2;
    color: var(--color-navy);
    margin-bottom: 1.5rem;
}

.blog-article .lead {
    font-size: 1.15rem;
    line-height: 1.75;
    color: #333;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
}

.blog-article h2 {
    font-family: var(--font-display);
    font-size: 1.9rem;
    color: var(--color-bordo);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.blog-article h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-navy);
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
}

.blog-article p {
    font-size: 1.02rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 1rem;
}

.blog-article ul,
.blog-article ol {
    margin: 1rem 0 1.5rem;
    padding-left: 1.5rem;
    line-height: 1.8;
    color: #333;
}

.blog-article li {
    margin-bottom: 0.5rem;
}

.blog-article strong {
    color: var(--color-navy);
    font-weight: 700;
}

.blog-article a {
    color: var(--color-bordo);
    font-weight: 600;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0 2rem;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.compare-table thead {
    background: var(--color-navy);
    color: #fff;
}

.compare-table th {
    padding: 0.85rem 1rem;
    text-align: left;
    font-weight: 700;
    font-size: 0.92rem;
}

.compare-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    vertical-align: top;
}

.compare-table tbody tr:nth-child(even) {
    background: rgba(139, 30, 63, 0.03);
}

.compare-table tbody tr:hover {
    background: rgba(139, 30, 63, 0.07);
}

.formula-box {
    background: linear-gradient(135deg, rgba(139, 30, 63, 0.06), rgba(30, 58, 95, 0.06));
    border-left: 4px solid var(--color-bordo);
    padding: 1.25rem 1.5rem;
    border-radius: 6px;
    margin: 1.5rem 0;
    font-family: 'Manrope', monospace;
}

.formula-box p {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.formula-box p:last-child { margin-bottom: 0; }

.cta-box {
    background: linear-gradient(135deg, var(--color-bordo), var(--color-navy));
    color: #fff;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0 1rem;
}

.cta-box h3 {
    font-family: var(--font-display);
    font-size: 1.7rem;
    color: #fff;
    margin-bottom: 1rem;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.cta-box .btn-primary {
    background: #ffc857;
    color: var(--color-navy);
    font-weight: 700;
}

.cta-box .btn-primary:hover {
    background: #fff;
}

/* Responsive for new pages */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    .stat-box .stat-num { font-size: 2.5rem; }
    
    .sector-heading { font-size: 1.5rem; }
    
    .blog-article h1 { font-size: 1.9rem; }
    .blog-article h2 { font-size: 1.5rem; }
    .blog-article .lead { font-size: 1.02rem; }
    
    .compare-table { font-size: 0.85rem; }
    .compare-table th, .compare-table td { padding: 0.6rem 0.75rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .cta-box { padding: 1.75rem 1.25rem; }
    .cta-box h3 { font-size: 1.35rem; }
}

/* ============================================
   Legal Pages (KVKK, Gizlilik, Çerez)
   ============================================ */

.legal-article {
    padding: 3rem 0 5rem;
}

.legal-article .container {
    max-width: 860px;
}

.legal-meta {
    background: rgba(30, 58, 95, 0.05);
    padding: 0.75rem 1.25rem;
    border-left: 3px solid var(--color-bordo);
    border-radius: 4px;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: #555;
}

.legal-article h2 {
    font-family: var(--font-display);
    font-size: 1.65rem;
    color: var(--color-navy);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(139, 30, 63, 0.15);
}

.legal-article h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--color-bordo);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.legal-article p {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 1rem;
}

.legal-article ul,
.legal-article ol {
    margin: 1rem 0 1.25rem;
    padding-left: 1.5rem;
    line-height: 1.8;
    color: #333;
}

.legal-article li {
    margin-bottom: 0.4rem;
}

.legal-article strong {
    color: var(--color-navy);
    font-weight: 700;
}

.legal-article a {
    color: var(--color-bordo);
    font-weight: 600;
}

.info-block {
    background: linear-gradient(135deg, rgba(139, 30, 63, 0.04), rgba(30, 58, 95, 0.04));
    border-left: 4px solid var(--color-bordo);
    padding: 1.25rem 1.5rem;
    border-radius: 6px;
    margin: 1.25rem 0;
}

.info-block p {
    margin-bottom: 0.4rem;
    line-height: 1.6;
}

.info-block p:last-child { margin-bottom: 0; }

.legal-note {
    background: #f5f3f0;
    padding: 1.25rem 1.5rem;
    border-radius: 6px;
    margin-top: 2rem;
    text-align: center;
    font-size: 0.95rem;
}

/* ============================================
   Certifications Page
   ============================================ */

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.75rem;
}

.cert-card {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1.75rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    text-align: center;
}

.cert-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.1);
}

.cert-badge {
    width: 120px;
    height: 120px;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

.cert-badge svg {
    width: 100%;
    height: 100%;
}

.cert-content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-navy);
    margin-bottom: 0.35rem;
}

.cert-content .cert-sub {
    color: var(--color-bordo);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.cert-content p:last-child {
    color: #555;
    font-size: 0.94rem;
    line-height: 1.65;
    margin-bottom: 0;
}

/* ============================================
   Service & Maintenance Page
   ============================================ */

.service-hero {
    background: linear-gradient(135deg, var(--color-navy), var(--color-bordo));
    color: #fff;
    padding: 2.5rem 0;
}

.service-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.srv-stat-num {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: #ffc857;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.srv-stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
    line-height: 1.4;
}

.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
}

.maint-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.maint-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.maint-header {
    color: #fff;
    padding: 1.5rem 1.5rem 1.25rem;
}

.maint-header h3 {
    font-family: var(--font-display);
    font-size: 1.45rem;
    margin-bottom: 0.35rem;
    color: #fff;
}

.maint-header p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.88rem;
    margin: 0;
}

.maint-body {
    padding: 1.5rem;
}

.maint-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.maint-body li {
    padding: 0.55rem 0 0.55rem 1.65rem;
    position: relative;
    font-size: 0.93rem;
    color: #333;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    line-height: 1.5;
}

.maint-body li:last-child { border-bottom: none; }

.maint-body li:before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0.55rem;
    color: var(--color-bordo);
    font-weight: 800;
    font-size: 1rem;
}

/* Emergency Strip */
.emergency-strip {
    background: linear-gradient(135deg, #8B1E3F, #4a1022);
    color: #fff;
    padding: 3rem 0;
}

.emergency-content {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 2rem;
    align-items: center;
}

.emergency-icon svg {
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

.emergency-text h2 {
    font-family: var(--font-display);
    font-size: 1.9rem;
    color: #fff;
    margin-bottom: 0.35rem;
}

.emergency-text p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.emergency-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-yellow {
    background: #ffc857;
    color: var(--color-navy);
    font-weight: 800;
    padding: 0.9rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.25s ease;
    display: inline-block;
    text-align: center;
    font-size: 1.05rem;
}

.btn-yellow:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

/* Region Grid */
.region-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.region-card {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--color-bordo);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.25s ease;
}

.region-card:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08);
    border-left-color: var(--color-navy);
}

.region-card h4 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--color-navy);
    margin-bottom: 0.5rem;
}

.region-card p {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #555;
    margin-bottom: 0.4rem;
}

.region-card p:last-child { margin-bottom: 0; }

.region-card strong {
    color: var(--color-bordo);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Warranty Section */
.warranty-flex {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.warranty-list {
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
}

.warranty-list li {
    padding: 0.65rem 0 0.65rem 2rem;
    position: relative;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 1.5;
}

.warranty-list li:last-child { border-bottom: none; }

.warranty-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ffc857;
    font-weight: 800;
    font-size: 1.2rem;
}

.warranty-badge {
    max-width: 280px;
    margin: 0 auto;
}

.warranty-badge svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.3));
}

.section-tag.light {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

/* Responsive */
@media (max-width: 992px) {
    .warranty-flex {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .warranty-badge { max-width: 220px; }
    
    .emergency-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .emergency-icon { display: none; }
    .emergency-cta {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .cert-grid { grid-template-columns: 1fr; }
    
    .service-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    .srv-stat-num { font-size: 2.25rem; }
    
    .legal-article h2 { font-size: 1.4rem; }
    .legal-article h3 { font-size: 1.05rem; }
    
    .region-grid { grid-template-columns: 1fr; }
    
    .emergency-text h2 { font-size: 1.45rem; }
    
    .maintenance-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .service-stats { grid-template-columns: 1fr 1fr; }
    .emergency-cta { flex-direction: column; }
}

/* ============================================
   Real Logo Image Styling (override prior SVG logo)
   ============================================ */
.logo-img {
    height: 48px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    display: block;
    transition: opacity 0.2s ease;
}

.logo:hover .logo-img {
    opacity: 0.85;
}

.footer-logo-img {
    height: 50px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: block;
    margin-bottom: 1rem;
    filter: brightness(1.1) saturate(1.1);
}

/* Hide old logo text elements (they were used with SVG logo) */
.logo-text,
.footer-logo > div {
    display: none !important;
}

/* Adjust footer-logo container to work with just image */
.footer-logo {
    display: block;
    margin-bottom: 1rem;
}

@media (max-width: 992px) {
    .logo-img { height: 48px; }
}

@media (max-width: 480px) {
    .logo-img { height: 40px; max-width: 160px; }
    .footer-logo-img { height: 42px; }
}

/* ============================================
   Scrollable Data Tables
   ============================================ */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1rem 0 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.table-scroll .data-table {
    margin: 0;
    width: 100%;
    table-layout: auto;
    font-size: 0.78rem;
}

.table-scroll .data-table th {
    font-size: 0.72rem;
    line-height: 1.2;
    padding: 0.6rem 0.4rem;
    word-wrap: break-word;
    white-space: normal;
    vertical-align: middle;
    text-align: center;
}

.table-scroll .data-table td {
    font-size: 0.78rem;
    padding: 0.55rem 0.4rem;
    word-wrap: break-word;
    white-space: normal;
    vertical-align: middle;
    text-align: center;
}

.table-scroll .data-table td:first-child {
    font-weight: 700;
    color: var(--color-bordo-dark);
    text-align: left;
    white-space: nowrap;
}

/* On larger screens give a bit more breathing room */
@media (min-width: 1024px) {
    .table-scroll .data-table {
        font-size: 0.82rem;
    }
    .table-scroll .data-table th {
        font-size: 0.78rem;
        padding: 0.75rem 0.5rem;
    }
    .table-scroll .data-table td {
        font-size: 0.82rem;
        padding: 0.7rem 0.5rem;
    }
}

/* On small mobile screens, keep horizontal scroll as fallback */
@media (max-width: 600px) {
    .table-scroll .data-table {
        min-width: 560px;
        font-size: 0.72rem;
    }
    .table-scroll .data-table th,
    .table-scroll .data-table td {
        font-size: 0.7rem;
        padding: 0.5rem 0.35rem;
    }
}

.table-scroll::-webkit-scrollbar {
    height: 8px;
}

.table-scroll::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.table-scroll::-webkit-scrollbar-thumb {
    background: rgba(139, 30, 63, 0.4);
    border-radius: 4px;
}

.table-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 30, 63, 0.6);
}

/* ============================================
   Blog Listing - Category Nav + Compact Cards
   ============================================ */
.blog-category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}
.blog-cat-btn {
    display: inline-block;
    padding: 0.55rem 1.2rem;
    background: var(--color-cream);
    color: var(--color-navy-dark);
    font-family: 'Manrope', sans-serif;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--color-border);
}
.blog-cat-btn:hover {
    background: var(--color-bordo-soft);
    color: var(--color-bordo-dark);
    border-color: var(--color-bordo);
}
.blog-cat-btn.active {
    background: var(--color-bordo-dark);
    color: white;
    border-color: var(--color-bordo-dark);
}

.section-subtitle {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    color: var(--color-navy-dark);
    margin-bottom: 2rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    position: relative;
    padding-bottom: 0.8rem;
}
.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-bordo-dark), var(--color-bordo));
    border-radius: 2px;
}

.blog-compact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.blog-card-sm {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.75rem 1.75rem 1.5rem;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}

.blog-card-sm:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.08);
    border-color: var(--color-bordo);
}

.blog-card-tag {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.blog-card-sm .blog-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--color-bordo-soft);
    color: var(--color-bordo-dark);
    font-family: 'Manrope', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: 4px;
}

.blog-card-sm .blog-tag.tag-energy {
    background: #e8f3e0;
    color: #3d6e28;
}
.blog-card-sm .blog-tag.tag-warning {
    background: #fdeeed;
    color: #a63020;
}
.blog-card-sm .blog-tag.tag-sector {
    background: #e5f0f8;
    color: #1E3A5F;
}
.blog-card-sm .blog-tag.tag-fuel {
    background: #faecd8;
    color: #8B5A2B;
}
.blog-card-sm .blog-tag.tag-operate {
    background: #f1e8fa;
    color: #6e3d9a;
}

.blog-card-sm .blog-read {
    font-size: 0.78rem;
    color: var(--color-gray);
    font-family: 'Manrope', sans-serif;
    font-weight: 500;
}

.blog-card-sm h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.35rem;
    color: var(--color-navy-dark);
    line-height: 1.3;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.blog-card-sm h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-card-sm:hover h3 a {
    color: var(--color-bordo-dark);
}

.blog-card-sm p {
    color: var(--color-gray);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
}

.blog-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.blog-card-sm .blog-date {
    font-size: 0.78rem;
    color: var(--color-gray);
    font-family: 'Manrope', sans-serif;
}

.blog-card-sm .blog-link {
    color: var(--color-bordo-dark);
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    font-family: 'Manrope', sans-serif;
    transition: transform 0.2s ease;
}

.blog-card-sm:hover .blog-link {
    transform: translateX(3px);
    display: inline-block;
}

/* Filter state */
.blog-card-sm.hidden {
    display: none;
}

@media (max-width: 768px) {
    .blog-compact-grid {
        grid-template-columns: 1fr;
    }
    .blog-category-nav {
        gap: 0.4rem;
    }
    .blog-cat-btn {
        padding: 0.45rem 0.9rem;
        font-size: 0.82rem;
    }
    .section-subtitle {
        font-size: 1.6rem;
    }
}

/* ============================================
   Product Selector (Dik / Yatay) Cards
   ============================================ */
.product-selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.selector-card {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.selector-card:hover {
    border-color: var(--color-bordo-dark);
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(139, 30, 63, 0.15);
}

.selector-img {
    background: linear-gradient(135deg, #f5f1ea 0%, #ede5d3 100%);
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 280px;
}

.selector-img svg {
    max-height: 100%;
    width: auto;
}

.selector-body {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.selector-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--color-bordo-dark);
    color: white;
    font-family: 'Manrope', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.selector-body h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.7rem;
    color: var(--color-navy-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.selector-meta {
    color: var(--color-bordo-dark);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    font-family: 'Manrope', sans-serif;
}

.selector-body ul {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    flex: 1;
}

.selector-body ul li {
    padding: 0.45rem 0 0.45rem 1.5rem;
    position: relative;
    color: var(--color-text);
    font-size: 0.92rem;
}

.selector-body ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-bordo-dark);
    font-weight: 700;
}

.selector-link {
    color: var(--color-bordo-dark);
    font-weight: 700;
    font-size: 1rem;
    font-family: 'Manrope', sans-serif;
    transition: transform 0.2s ease;
    display: inline-block;
}

.selector-card:hover .selector-link {
    transform: translateX(5px);
}

/* ============================================
   Sub-dropdown for nested menu items
   ============================================ */
.dropdown li {
    position: relative;
}

.sub-dropdown {
    list-style: none;
    padding: 0.5rem 0 0.5rem 1.5rem;
    margin: 0;
    background: rgba(139, 30, 63, 0.04);
    border-left: 3px solid var(--color-bordo-soft);
    margin-left: 0.5rem;
}

.sub-dropdown li {
    padding: 0;
}

.sub-dropdown li a {
    display: block;
    padding: 0.4rem 1rem;
    color: var(--color-gray);
    font-size: 0.85rem;
    text-decoration: none;
    transition: color 0.15s;
}

.sub-dropdown li a:hover {
    color: var(--color-bordo-dark);
}

@media (max-width: 768px) {
    .product-selector-grid {
        grid-template-columns: 1fr;
    }
    .selector-img {
        height: 220px;
        padding: 1.5rem;
    }
    .selector-body {
        padding: 1.5rem;
    }
}

/* ============================================
   PRODUCT GALLERY - Real Photo Gallery
   ============================================ */
.gallery-main {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: #f5f1ea;
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.12);
    aspect-ratio: 4/5;
    margin-bottom: 1rem;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.gallery-main:hover img {
    transform: scale(1.03);
}

.gallery-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-bordo-dark);
    color: white;
    font-family: 'Manrope', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(139, 30, 63, 0.3);
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 0.75rem;
}

.thumb {
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: all 0.2s ease;
    background: #f5f1ea;
}

.thumb.active {
    border-color: var(--color-bordo-dark);
    box-shadow: 0 4px 12px rgba(139, 30, 63, 0.25);
}

.thumb:hover {
    border-color: var(--color-bordo-soft);
    transform: translateY(-2px);
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 768px) {
    .gallery-main {
        aspect-ratio: 1/1;
    }
    .gallery-thumbs {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   HERO PHOTO FRAME - Real Product Photo
   ============================================ */
.hero-photo-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
    z-index: 2;
}

.hero-photo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-photo-decor {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 4px solid var(--color-bordo-dark);
    border-radius: 16px;
    z-index: -1;
    opacity: 0.7;
}

.hero-photo-tag {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(30, 58, 95, 0.92);
    color: white;
    padding: 0.85rem 1.4rem;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.hero-photo-tag .tag-line {
    display: block;
    font-family: 'Manrope', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #ffb4c9;
    margin-bottom: 0.2rem;
}

.hero-photo-tag strong {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    font-weight: 600;
    font-style: italic;
}

.hero-photo-stat {
    position: absolute;
    top: -30px;
    right: -30px;
    background: var(--color-bordo-dark);
    color: white;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 32px rgba(139, 30, 63, 0.4);
    z-index: 3;
    border: 4px solid white;
}

.hero-photo-stat .stat-number {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1;
}

.hero-photo-stat .stat-number span {
    font-size: 1.4rem;
    color: #ffb4c9;
}

.hero-photo-stat .stat-text {
    font-family: 'Manrope', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    text-align: center;
    margin-top: 0.3rem;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .hero-photo-stat {
        width: 100px;
        height: 100px;
        top: -20px;
        right: -20px;
    }
    .hero-photo-stat .stat-number {
        font-size: 2.2rem;
    }
    .hero-photo-tag {
        padding: 0.6rem 1rem;
    }
    .hero-photo-tag strong {
        font-size: 1.1rem;
    }
}

/* ============================================
   PRODUCT CARD - Real photo for product cards
   ============================================ */
.product-card .product-visual:has(.product-real-img) {
    padding: 0;
    overflow: hidden;
}

.product-real-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.45s ease;
    min-height: 220px;
}

.product-card:hover .product-real-img {
    transform: scale(1.06);
}

/* ============================================
   INSTALLATION GALLERY - References Page
   ============================================ */
.installation-gallery {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.install-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.install-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(30, 58, 95, 0.2);
}

.install-large {
    grid-row: 1 / 3;
    aspect-ratio: 4/5;
}

.install-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.install-item:hover img {
    transform: scale(1.05);
}

.install-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(30, 58, 95, 0.96) 0%, rgba(30, 58, 95, 0.7) 60%, transparent 100%);
    color: white;
}

.caption-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--color-bordo-dark);
    font-family: 'Manrope', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    border-radius: 4px;
    margin-bottom: 0.6rem;
}

.install-caption h4 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    margin: 0 0 0.4rem;
    font-weight: 600;
    line-height: 1.2;
}

.install-caption p {
    font-size: 0.85rem;
    opacity: 0.92;
    margin: 0;
    line-height: 1.4;
}

.install-large .install-caption h4 {
    font-size: 1.7rem;
}

.section-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--color-bordo-dark);
    color: white;
    font-family: 'Manrope', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    border-radius: 20px;
}

@media (max-width: 900px) {
    .installation-gallery {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
    }
    .install-large {
        grid-row: auto;
        grid-column: 1 / 3;
        aspect-ratio: 16/9;
    }
}

@media (max-width: 600px) {
    .installation-gallery {
        grid-template-columns: 1fr;
    }
    .install-large {
        grid-column: auto;
        aspect-ratio: 4/3;
    }
    .install-caption {
        padding: 1rem;
    }
    .install-caption h4 {
        font-size: 1.2rem;
    }
    .install-large .install-caption h4 {
        font-size: 1.3rem;
    }
}

/* ============================================
   PRODUCT GALLERY - Horizontal variant
   For pages with landscape orientation product photos
   ============================================ */
.product-gallery.horizontal .gallery-main {
    aspect-ratio: 4/3;
}

.product-gallery.horizontal .gallery-main img {
    object-fit: cover;
    object-position: center center;
}

@media (max-width: 768px) {
    .product-gallery.horizontal .gallery-main {
        aspect-ratio: 4/3;
    }
}

/* ============================================
   TOP BAR EMERGENCY SERVICE
   ============================================ */
.top-emergency {
    color: #ff6b6b !important;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(220, 38, 38, 0.15);
    padding: 0.2rem 0.7rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 107, 107, 0.3);
}
.top-emergency svg { color: #ff6b6b; }

/* ============================================
   FOOTER CERT BADGES
   ============================================ */
.footer-certs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}
.cert-badge {
    background: linear-gradient(135deg, var(--color-bordo-dark), var(--color-bordo-soft));
    color: white;
    font-family: 'Manrope', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(139, 30, 63, 0.25);
}

/* ============================================
   SECTOR HERO (for /cozumler/*.html pages)
   ============================================ */
.sector-hero {
    padding: 5rem 0 4rem;
    color: white;
    position: relative;
    overflow: hidden;
}
.sector-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%);
}
.sector-hero-grid {
    position: relative;
    max-width: 900px;
}
.sector-hero-icon {
    font-size: 3.5rem;
    display: inline-block;
    margin-bottom: 0.5rem;
}
.sector-hero h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3.5rem;
    font-weight: 600;
    line-height: 1.1;
    margin: 0.5rem 0 1.5rem;
    color: white;
}
.sector-hero h1 em {
    display: block;
    font-style: italic;
    font-weight: 500;
}
.sector-hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.92);
    margin-bottom: 2.5rem;
    max-width: 720px;
}
.sector-hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0 2.5rem;
    max-width: 720px;
}
.shs-item {
    border-left: 3px solid #ffd700;
    padding-left: 1rem;
}
.shs-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffd700;
    line-height: 1;
}
.shs-label {
    font-family: 'Manrope', sans-serif;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.85);
    margin-top: 0.4rem;
}
.sector-hero-ctas {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}
.btn-bordo {
    background: var(--color-bordo-dark);
    color: white;
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}
.btn-bordo:hover { background: var(--color-bordo-soft); transform: translateY(-2px); }

.btn-text-light {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255,255,255,0.4);
    padding-bottom: 2px;
    transition: all 0.2s ease;
}
.btn-text-light:hover { color: #ffd700; border-color: #ffd700; }

.btn-text-white { 
    color: white; 
    text-decoration: none; 
    font-weight: 600; 
    font-size: 0.95rem;
    margin-left: 1rem;
}
.btn-text-white:hover { text-decoration: underline; }

.breadcrumb-light { color: rgba(255,255,255,0.85); margin-bottom: 1.5rem; font-size: 0.85rem; }
.breadcrumb-light a { color: #ffd700; text-decoration: none; }
.breadcrumb-light .sep { margin: 0 0.5rem; opacity: 0.5; }

/* ============================================
   SECTOR INTRO
   ============================================ */
.sector-intro {
    padding: 4rem 0;
    background: white;
}
.sector-intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.lead-large {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--color-navy-dark);
    font-weight: 500;
}
.lead-large strong { color: var(--color-bordo-dark); font-weight: 600; }

/* ============================================
   SECTION HEADERS (centered)
   ============================================ */
.section-header-center {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}
.section-header-center h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-navy-dark);
    margin: 1rem 0;
    line-height: 1.15;
}
.section-subtitle {
    color: var(--color-gray);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* ============================================
   USE CASES GRID
   ============================================ */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1.5rem;
}
.usecase-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.08);
    border-top: 4px solid var(--color-bordo-dark);
    transition: all 0.3s ease;
}
.usecase-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(30, 58, 95, 0.14);
}
.usecase-item h4 {
    font-family: 'Manrope', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    margin: 0 0 0.75rem;
    line-height: 1.3;
}
.usecase-item p {
    color: var(--color-gray);
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   RECOMMENDED PRODUCTS GRID
   ============================================ */
.recommended-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}
.recommended-product {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.08);
    border: 1px solid #e8e4dc;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.recommended-product:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(30, 58, 95, 0.16);
    border-color: var(--color-bordo-dark);
}
.rp-image {
    height: 200px;
    background: linear-gradient(135deg, #f5f1ea, #e8e4dc);
    overflow: hidden;
    position: relative;
}
.rp-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.recommended-product:hover .rp-image img { transform: scale(1.06); }
.rp-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-family: 'Cormorant Garamond', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-bordo-dark);
    opacity: 0.4;
}
.rp-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.rp-content h4 {
    font-family: 'Manrope', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-navy-dark);
    margin: 0 0 0.5rem;
}
.rp-capacity {
    display: inline-block;
    background: var(--color-bordo-dark);
    color: white;
    padding: 0.25rem 0.7rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    align-self: flex-start;
}
.rp-content p {
    color: var(--color-gray);
    font-size: 0.88rem;
    line-height: 1.5;
    margin: 0 0 1rem;
    flex: 1;
}
.rp-link {
    color: var(--color-bordo-dark);
    font-weight: 700;
    font-size: 0.9rem;
}

/* ============================================
   CASE STUDY (dark background)
   ============================================ */
.bg-navy { background: linear-gradient(135deg, var(--color-navy-dark) 0%, #0e1f3a 100%); color: white; }
.bg-navy-light { background: linear-gradient(135deg, #1e3a5f 0%, #2a4970 100%); }
.bg-light { background: #faf7f2; }

.case-study {
    text-align: center;
    color: white;
    max-width: 1100px;
    margin: 0 auto;
}
.case-study-header { margin-bottom: 3rem; }
.case-tag {
    display: inline-block;
    background: #ffd700;
    color: var(--color-navy-dark);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    margin-bottom: 1rem;
}
.case-study h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.2rem;
    color: white;
    margin: 0.5rem 0 1rem;
    line-height: 1.2;
}
.case-summary {
    font-size: 1.05rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.9);
    max-width: 700px;
    margin: 0 auto;
}
.case-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.case-result {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,215,0,0.3);
    border-radius: 12px;
    padding: 1.75rem 1rem;
    backdrop-filter: blur(10px);
}
.case-result-value {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.4rem;
    font-weight: 700;
    color: #ffd700;
    line-height: 1;
}
.case-result-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.85);
    margin-top: 0.6rem;
    line-height: 1.3;
}

/* ============================================
   ADVANTAGES BLOCK
   ============================================ */
.advantages-block {
    max-width: 900px;
    margin: 0 auto;
}
.advantages-text h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.2rem;
    color: var(--color-navy-dark);
    margin: 0.5rem 0 1rem;
}
.advantages-text > p {
    color: var(--color-gray);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.advantages-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}
.advantages-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(30,58,95,0.06);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-navy-dark);
}
.advantages-list li svg {
    color: #16a34a;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-bordo-dark) 0%, #5a0e22 100%);
    color: white;
    text-align: center;
    padding: 5rem 0;
}
.cta-section h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    color: white;
    margin: 0 0 1rem;
    line-height: 1.2;
}
.cta-section h2 em { color: #ffd700; font-style: italic; }
.cta-section p {
    font-size: 1.05rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.92);
    max-width: 700px;
    margin: 0 auto 2rem;
}
.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}
.btn-white {
    background: white;
    color: var(--color-bordo-dark);
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.2); }

.bg-green-cta { background: linear-gradient(135deg, #16a34a 0%, #14532d 100%) !important; }

/* ============================================
   SUSTAINABILITY PAGE
   ============================================ */
.sustain-hero {
    background: linear-gradient(135deg, #16a34a 0%, #14532d 60%, #1e3a5f 100%);
    color: white;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}
.sustain-hero::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,215,0,0.1) 0%, transparent 60%);
    pointer-events: none;
}
.sustain-hero-grid { position: relative; max-width: 900px; }
.sustain-badge {
    display: inline-block;
    background: rgba(255,215,0,0.2);
    color: #ffd700;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(255,215,0,0.4);
}
.sustain-hero h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3.8rem;
    color: white;
    margin: 0.5rem 0 1.5rem;
    line-height: 1.05;
    font-weight: 600;
}
.sustain-hero h1 em { font-style: italic; color: #ffd700; }
.sustain-hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.92);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    max-width: 750px;
}
.sustain-hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 720px;
}

.sustain-intro { padding: 4rem 0; background: white; text-align: center; }

.green-tech-section { padding: 5rem 0; background: #faf7f2; }
.green-tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.75rem;
    max-width: 1200px;
    margin: 0 auto;
}
.green-tech-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 24px rgba(30,58,95,0.08);
    border-top: 5px solid;
    transition: all 0.3s ease;
}
.green-electric { border-color: #facc15; }
.green-hydrogen { border-color: #38bdf8; }
.green-biomass { border-color: #16a34a; }
.green-hybrid { border-color: #c084fc; }
.green-tech-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(30,58,95,0.15);
}
.gt-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.gt-tag {
    display: inline-block;
    background: var(--color-navy-dark);
    color: white;
    padding: 0.25rem 0.7rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}
.green-tech-card h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.6rem;
    color: var(--color-navy-dark);
    margin: 0.5rem 0;
    font-weight: 600;
}
.gt-tagline {
    color: var(--color-bordo-dark);
    font-weight: 600;
    font-size: 0.92rem;
    margin: 0 0 1.25rem;
    font-style: italic;
}
.gt-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
}
.gt-features li {
    padding: 0.5rem 0;
    color: var(--color-gray);
    font-size: 0.9rem;
    border-bottom: 1px solid #f0ebe2;
    position: relative;
    padding-left: 1.4rem;
}
.gt-features li::before {
    content: "✓";
    color: #16a34a;
    font-weight: 800;
    position: absolute;
    left: 0;
}
.gt-features li:last-child { border-bottom: none; }
.gt-link {
    color: var(--color-bordo-dark);
    font-weight: 700;
    text-decoration: none;
    font-size: 0.95rem;
}
.gt-link:hover { color: var(--color-bordo-soft); }

/* CO2 Calculator */
.co2-calculator {
    max-width: 1100px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 28px rgba(30,58,95,0.08);
}
.calc-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.calc-field label {
    display: block;
    font-weight: 600;
    color: var(--color-navy-dark);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.calc-field input, .calc-field select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e0d9cb;
    border-radius: 6px;
    font-size: 0.95rem;
    background: #faf7f2;
    transition: border-color 0.2s ease;
}
.calc-field input:focus, .calc-field select:focus {
    outline: none;
    border-color: var(--color-bordo-dark);
    background: white;
}
.calc-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    background: linear-gradient(135deg, #16a34a 0%, #1e3a5f 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
}
.calc-result-item {
    text-align: center;
    padding: 1rem;
}
.cri-label {
    display: block;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.cri-value {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.8rem;
    color: #ffd700;
    font-weight: 700;
}
.calc-disclaimer {
    color: var(--color-gray);
    font-size: 0.78rem;
    margin-top: 1.25rem;
    text-align: center;
    font-style: italic;
}

.regulations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}
.reg-item {
    background: white;
    padding: 1.75rem;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(30,58,95,0.06);
    border-left: 4px solid var(--color-bordo-dark);
}
.reg-item h4 {
    font-size: 1.05rem;
    color: var(--color-navy-dark);
    margin: 0 0 0.75rem;
}
.reg-item p {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.55;
    margin: 0;
}

/* ============================================
   SIZING TOOL
   ============================================ */
.sizing-tool {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(30,58,95,0.1);
    overflow: hidden;
}
.sizing-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #f5f1ea;
    border-bottom: 1px solid #e8e4dc;
}
.sstep {
    padding: 1.25rem 1rem;
    text-align: center;
    color: var(--color-gray);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
}
.sstep::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.3s ease;
}
.sstep.active {
    color: var(--color-bordo-dark);
    background: white;
}
.sstep.active::after { background: var(--color-bordo-dark); }
.ssn {
    width: 28px;
    height: 28px;
    background: white;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
    border: 2px solid currentColor;
}

.sizing-step-content {
    display: none;
    padding: 2.5rem;
}
.sizing-step-content.active { display: block; }
.sizing-step-content h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.9rem;
    color: var(--color-navy-dark);
    margin: 0 0 0.5rem;
}
.sst-help {
    color: var(--color-gray);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.sector-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}
.sector-card {
    padding: 1.5rem 1rem;
    text-align: center;
    border: 2px solid #e8e4dc;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    background: white;
}
.sector-card:hover {
    border-color: var(--color-bordo-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(30,58,95,0.1);
}
.sector-card.selected {
    border-color: var(--color-bordo-dark);
    background: linear-gradient(135deg, var(--color-bordo-dark) 0%, var(--color-bordo-soft) 100%);
    color: white;
}
.sc-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.sc-name { font-weight: 700; font-size: 0.9rem; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}
.form-field label {
    display: block;
    font-weight: 600;
    color: var(--color-navy-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}
.ff-help {
    display: block;
    font-weight: 400;
    color: var(--color-gray);
    font-size: 0.78rem;
    margin-top: 0.2rem;
}
.form-field input[type="number"], .form-field select {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 2px solid #e0d9cb;
    border-radius: 6px;
    font-size: 1rem;
    background: #faf7f2;
}
.form-field input[type="range"] {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--color-bordo-dark);
}
.capacity-hints {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}
.hint-btn {
    padding: 0.4rem 0.85rem;
    background: #f5f1ea;
    border: 1px solid #d6cebe;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--color-navy-dark);
    transition: all 0.2s ease;
}
.hint-btn:hover {
    background: var(--color-bordo-dark);
    color: white;
    border-color: var(--color-bordo-dark);
}

.fuel-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
}
.fuel-card {
    padding: 1.5rem 1.25rem;
    border: 2px solid #e8e4dc;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    background: white;
}
.fuel-card:hover {
    border-color: var(--color-bordo-dark);
    transform: translateY(-3px);
}
.fuel-card.selected {
    border-color: var(--color-bordo-dark);
    background: linear-gradient(135deg, var(--color-bordo-dark) 0%, var(--color-bordo-soft) 100%);
    color: white;
}
.fc-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.fc-name { font-weight: 700; font-size: 1rem; margin-bottom: 0.4rem; }
.fc-desc { font-size: 0.8rem; line-height: 1.4; opacity: 0.85; }

.form-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    gap: 1rem;
}
.btn-secondary {
    background: white;
    color: var(--color-navy-dark);
    border: 2px solid #d6cebe;
    padding: 0.85rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}
.btn-secondary:hover {
    background: #f5f1ea;
    border-color: var(--color-navy-dark);
}

/* Result step */
.result-header {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e8e4dc;
    margin-bottom: 2rem;
}
.result-tag {
    display: inline-block;
    background: linear-gradient(135deg, #16a34a, #14532d);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}
#resultProductName {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.2rem;
    color: var(--color-navy-dark);
    margin: 0.5rem 0;
}
#resultSummary { color: var(--color-gray); max-width: 700px; margin: 0 auto; line-height: 1.6; }

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}
@media (max-width: 768px) { .result-grid { grid-template-columns: 1fr; } }

.result-spec-box {
    background: linear-gradient(135deg, var(--color-navy-dark), #2a4970);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}
.result-spec-box h4 { color: rgba(255,255,255,0.85); font-size: 0.85rem; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 1rem; }
.rsb-product { font-family: 'Cormorant Garamond', serif; font-size: 1.5rem; color: #ffd700; margin-bottom: 1rem; }
.rsb-image {
    height: 180px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.rsb-image img { width: 100%; height: 100%; object-fit: cover; }
.rsb-placeholder { font-size: 4rem; opacity: 0.5; }

.result-data {
    background: #faf7f2;
    border-radius: 12px;
    padding: 1.75rem;
}
.result-data-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 0;
    border-bottom: 1px solid #e8e4dc;
}
.result-data-item:last-child { border-bottom: none; }
.result-data-item.highlight {
    background: var(--color-bordo-dark);
    color: white;
    margin: 0.5rem -1.75rem -1.75rem;
    padding: 1rem 1.75rem;
    border-radius: 0 0 12px 12px;
}
.result-data-item.highlight + .result-data-item.highlight { 
    border-radius: 0; margin-bottom: 0; padding-top: 0.85rem;
}
.result-data-item.highlight:last-child { border-radius: 0 0 12px 12px; margin-bottom: -1.75rem; }
.rdi-label { font-size: 0.85rem; color: var(--color-gray); }
.result-data-item.highlight .rdi-label { color: rgba(255,255,255,0.85); }
.rdi-value { font-weight: 700; color: var(--color-navy-dark); font-size: 0.95rem; }
.result-data-item.highlight .rdi-value { color: #ffd700; font-size: 1.1rem; }

.result-cta-box {
    background: #f5f1ea;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}
.result-cta-box h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.6rem;
    color: var(--color-navy-dark);
    margin: 0 0 0.5rem;
}
.result-cta-box p { color: var(--color-gray); font-size: 0.92rem; line-height: 1.5; max-width: 600px; margin: 0 auto 1.5rem; }
.result-cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-whatsapp {
    background: #25D366;
    color: white;
    padding: 0.85rem 1.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}
.btn-whatsapp:hover { background: #128C7E; }

/* Info grid 3 */
.info-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}
.info-item {
    text-align: center;
    padding: 1.5rem;
}
.info-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.info-item h4 {
    font-family: 'Manrope', sans-serif;
    color: var(--color-navy-dark);
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
}
.info-item p {
    color: var(--color-gray);
    font-size: 0.9rem;
    line-height: 1.55;
    margin: 0;
}

/* Page header bg-navy-light */
.page-header.bg-navy-light {
    padding: 4rem 0 3rem;
    color: white;
}
.page-header.bg-navy-light h1 em { color: #ffd700; font-style: italic; }

/* Sub-dropdown for nested menu */
.sub-dropdown {
    list-style: none;
    padding-left: 1rem;
    margin-top: 0.25rem;
}
.sub-dropdown li a {
    font-size: 0.85rem !important;
    color: var(--color-gray) !important;
    padding: 0.3rem 0 !important;
}
.sub-dropdown li a:hover { color: var(--color-bordo-dark) !important; }

/* Mobile responsive */
@media (max-width: 900px) {
    .sector-hero h1 { font-size: 2.4rem; }
    .sector-hero-stats { grid-template-columns: 1fr; gap: 1rem; }
    .sustain-hero h1 { font-size: 2.6rem; }
    .sustain-hero-stats { grid-template-columns: 1fr; }
    .lead-large { font-size: 1.2rem; }
    .case-study h2 { font-size: 1.6rem; }
    .case-result-value { font-size: 1.8rem; }
    .sizing-steps { font-size: 0.78rem; }
    .sstep { padding: 0.85rem 0.4rem; flex-direction: column; gap: 0.25rem; }
}


/* ============================================
   CUSTOMER LOGOS STRIP
   ============================================ */
.customer-logos-section {
    padding: 4rem 0;
    background: linear-gradient(180deg, #faf7f2 0%, white 100%);
    border-top: 1px solid #e8e4dc;
    border-bottom: 1px solid #e8e4dc;
}
.cl-header {
    text-align: center;
    margin-bottom: 2.5rem;
}
.cl-tag {
    display: inline-block;
    background: var(--color-bordo-dark);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    margin-bottom: 0.75rem;
}
.cl-header h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.9rem;
    color: var(--color-navy-dark);
    font-weight: 600;
    margin: 0.5rem 0;
}
.cl-header p {
    color: var(--color-gray);
    font-size: 0.95rem;
    margin: 0;
}
.customer-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
}
.cl-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    padding: 1rem;
    border-radius: 8px;
    background: white;
    border: 1px solid #e0d9cb;
    transition: all 0.3s ease;
    filter: grayscale(100%);
    opacity: 0.65;
}
.cl-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(30,58,95,0.1);
}
.cl-placeholder {
    font-family: 'Manrope', sans-serif;
    font-weight: 800;
    color: #8a8478;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-align: center;
}
.cl-disclaimer {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.78rem;
    margin-top: 1.5rem;
    font-style: italic;
}
.cl-disclaimer a {
    color: var(--color-bordo-dark);
    text-decoration: underline;
}

/* Footer contact emergency style fix */
.footer-contact strong {
    display: inline-block;
    background: rgba(255, 107, 107, 0.15);
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.2rem;
    font-size: 0.85rem;
}


/* ============================================
   KAZAN BOYUTLANDIRMA ARACI — CONTRAST FIX
   (kullanıcı reportu: butonlar/yazılar beyaz arkaplanda görünmüyordu)
   ============================================ */

/* Ensure button elements with .btn class inherit all btn styles properly */
button.btn {
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Force btn-bordo on buttons to be fully visible */
button.btn.btn-bordo {
    background: #8B1E3F !important;
    color: white !important;
    padding: 0.85rem 1.65rem;
    border-radius: 6px;
    border: 2px solid #8B1E3F;
}
button.btn.btn-bordo:hover {
    background: #a02f52 !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 30, 63, 0.3);
}

/* btn-secondary on buttons */
button.btn-secondary {
    background: white !important;
    color: #1E3A5F !important;
    border: 2px solid #d6cebe !important;
    padding: 0.85rem 1.5rem;
    border-radius: 6px;
    font-weight: 700 !important;
    cursor: pointer;
    font-family: 'Manrope', sans-serif;
    font-size: 0.95rem;
}
button.btn-secondary:hover {
    background: #f5f1ea !important;
    border-color: #1E3A5F !important;
    color: #8B1E3F !important;
}

/* Sizing step text — make sure active/inactive states are readable */
.sizing-steps .sstep {
    color: #1E3A5F !important;
    font-weight: 700 !important;
}
.sizing-steps .sstep .ssn {
    background: white !important;
    color: #1E3A5F !important;
    border: 2px solid #1E3A5F !important;
}
.sizing-steps .sstep.active {
    color: #8B1E3F !important;
    background: white !important;
}
.sizing-steps .sstep.active .ssn {
    background: #8B1E3F !important;
    color: white !important;
    border-color: #8B1E3F !important;
}
.sizing-steps .sstep:not(.active) {
    color: #64748b !important;
    background: #f5f1ea !important;
}

/* Fuel card & sector card text — ensure visibility */
.sector-card, .fuel-card {
    background: white !important;
}
.sector-card .sc-name, .fuel-card .fc-name {
    color: #1E3A5F !important;
    font-weight: 700 !important;
}
.sector-card .sc-icon, .fuel-card .fc-icon {
    color: #8B1E3F !important;
}
.fuel-card .fc-desc {
    color: #64748b !important;
}
.sector-card.selected, .fuel-card.selected {
    background: linear-gradient(135deg, #8B1E3F 0%, #a02f52 100%) !important;
}
.sector-card.selected .sc-name, .fuel-card.selected .fc-name {
    color: white !important;
}
.sector-card.selected .sc-icon, .fuel-card.selected .fc-icon {
    color: white !important;
}
.fuel-card.selected .fc-desc {
    color: rgba(255,255,255,0.85) !important;
}

/* Hint buttons — high contrast */
.hint-btn {
    background: white !important;
    color: #1E3A5F !important;
    border: 1.5px solid #d6cebe !important;
    font-weight: 600 !important;
    padding: 0.5rem 0.9rem !important;
    font-size: 0.82rem !important;
    font-family: 'Manrope', sans-serif !important;
    cursor: pointer;
    border-radius: 4px;
}
.hint-btn:hover {
    background: #8B1E3F !important;
    color: white !important;
    border-color: #8B1E3F !important;
}

/* Form field labels visible */
.form-field label {
    color: #1E3A5F !important;
    font-weight: 700 !important;
}
.form-field input, .form-field select {
    color: #1E3A5F !important;
    background: #faf7f2 !important;
    border: 2px solid #d6cebe !important;
}
.form-field input:focus, .form-field select:focus {
    border-color: #8B1E3F !important;
    background: white !important;
    outline: none;
}

/* Sizing tool headings */
.sizing-step-content h2 {
    color: #1E3A5F !important;
}
.sizing-step-content .sst-help {
    color: #64748b !important;
}

/* Result step — ensure visibility */
.result-data-item .rdi-label {
    color: #64748b !important;
}
.result-data-item .rdi-value {
    color: #1E3A5F !important;
    font-weight: 700 !important;
}
.result-data-item.highlight .rdi-label {
    color: rgba(255,255,255,0.88) !important;
}
.result-data-item.highlight .rdi-value {
    color: #ffd700 !important;
}

/* Selector tag — fix text on light bg */
.selector-tag {
    color: white !important;
    background: #8B1E3F !important;
    font-weight: 700 !important;
}

/* Btn-text-light on any background with gradient */
.btn-text-light {
    color: #ffd700 !important;
    font-weight: 700 !important;
    border-bottom: 2px solid rgba(255, 215, 0, 0.5);
    padding-bottom: 2px;
}

/* Gallery-main horizontal aspect ratio for yatay page */
.product-gallery.horizontal .gallery-main {
    aspect-ratio: 16 / 10;
}
.product-gallery.horizontal .gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Make gallery-main have consistent aspect ratio for all product pages */
.product-gallery .gallery-main {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 12px;
    background: #ffffff;
    line-height: 0;
}
.product-gallery .gallery-main img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    vertical-align: bottom;
    line-height: 0;
}
.product-gallery .gallery-main .gallery-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: #8B1E3F;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
    z-index: 2;
}


/* ============================================
   PRODUCT CARD VISUAL — CONSISTENT SIZE
   Ana sayfada serpantinli kartı gerçek resim nedeniyle
   diğer SVG kartlardan daha büyük görünüyordu.
   ============================================ */
.products-grid .product-card .product-visual {
    height: 220px !important;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0.5rem !important;
    background: #f8fafc !important;
}
.products-grid .product-card .product-visual::before {
    display: none !important;
}
.products-grid .product-card .product-visual img {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    object-position: center !important;
    display: block !important;
}


/* ============================================
   GLOBAL BUTTON CONTRAST FIX - Section CTAs
   (a.btn-secondary ana sayfada beyaz arkaplanda okunmuyordu)
   ============================================ */
.section-cta a.btn-secondary,
a.btn.btn-secondary {
    background: #1E3A5F !important;
    color: white !important;
    border: 2px solid #1E3A5F !important;
    padding: 0.9rem 1.8rem !important;
    border-radius: 6px;
    font-weight: 700 !important;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.section-cta a.btn-secondary:hover,
a.btn.btn-secondary:hover {
    background: #8B1E3F !important;
    border-color: #8B1E3F !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 30, 63, 0.25);
}
.section-cta a.btn-secondary svg,
a.btn.btn-secondary svg {
    stroke: white !important;
}

/* Customer logos section - cl-tag contrast fix */
.customer-logos-section .cl-tag {
    background: #8B1E3F !important;
    color: white !important;
    padding: 0.5rem 1.2rem !important;
    font-weight: 700 !important;
    letter-spacing: 1.5px !important;
    display: inline-block;
    border-radius: 20px;
}

/* cl-header heading stays navy */
.customer-logos-section .cl-header h3 {
    color: #1E3A5F !important;
}
.customer-logos-section .cl-header p {
    color: #64748b !important;
}


/* ============================================
   SSS (FAQ) BÖLÜMÜ — Ürün sayfalarında
   ============================================ */
.faq-section {
    padding: 5rem 0 4rem;
    background: linear-gradient(135deg, #f5f1ea 0%, #fff 100%);
}
.faq-section .faq-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 3rem;
}
.faq-section .faq-head .section-tag {
    display: inline-block;
    background: #8B1E3F;
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.78rem;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 1.2rem;
}
.faq-section .faq-head h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    color: #1E3A5F;
    margin: 0 0 1rem;
    font-weight: 600;
}
.faq-section .faq-head h2 em {
    color: #8B1E3F;
    font-style: italic;
}
.faq-section .faq-head p {
    color: #64748b;
    font-size: 1.05rem;
    line-height: 1.7;
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.faq-item {
    background: white;
    border-radius: 10px;
    border: 1px solid #e5e0d4;
    overflow: hidden;
    transition: all 0.25s ease;
}
.faq-item[open] {
    border-color: #8B1E3F;
    box-shadow: 0 8px 24px rgba(139, 30, 63, 0.08);
}
.faq-item summary.faq-question {
    padding: 1.35rem 1.75rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: #1E3A5F;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: color 0.2s;
}
.faq-item summary.faq-question::-webkit-details-marker {
    display: none;
}
.faq-item summary.faq-question::after {
    content: "+";
    font-size: 1.5rem;
    font-weight: 300;
    color: #8B1E3F;
    transition: transform 0.25s ease;
    flex-shrink: 0;
}
.faq-item[open] summary.faq-question::after {
    transform: rotate(45deg);
}
.faq-item summary.faq-question:hover {
    color: #8B1E3F;
}
.faq-item .faq-answer {
    padding: 0 1.75rem 1.5rem;
    color: #475569;
    line-height: 1.75;
    font-size: 0.98rem;
}
.faq-item .faq-answer p {
    margin: 0;
}
@media (max-width: 768px) {
    .faq-section { padding: 3rem 0 2.5rem; }
    .faq-section .faq-head h2 { font-size: 2rem; }
    .faq-item summary.faq-question { padding: 1rem 1.25rem; font-size: 0.98rem; }
    .faq-item .faq-answer { padding: 0 1.25rem 1.2rem; font-size: 0.92rem; }
}


/* ============================================
   TOPIC CLUSTER (urunler.html sayfasında)
   Ürün → Blog iç linkleme bölümü
   ============================================ */
.topic-cluster-section {
    padding: 5rem 0 4rem;
    background: linear-gradient(180deg, #fff 0%, #f5f1ea 100%);
}
.topic-cluster-section .tc-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3rem;
}
.topic-cluster-section .tc-head .section-tag {
    display: inline-block;
    background: #1E3A5F;
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.78rem;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 1.2rem;
}
.topic-cluster-section .tc-head h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    color: #1E3A5F;
    margin: 0 0 1rem;
    font-weight: 600;
}
.topic-cluster-section .tc-head h2 em {
    color: #8B1E3F;
    font-style: italic;
}
.topic-cluster-section .tc-head p {
    color: #64748b;
    font-size: 1.05rem;
    line-height: 1.7;
}
.tc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}
.tc-cluster {
    background: white;
    border-radius: 12px;
    padding: 1.75rem 1.5rem;
    border: 1px solid #e5e0d4;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}
.tc-cluster:hover {
    border-color: #8B1E3F;
    box-shadow: 0 12px 30px rgba(139, 30, 63, 0.1);
    transform: translateY(-2px);
}
.tc-cluster-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    color: #1E3A5F;
    margin: 0 0 1.25rem;
    font-weight: 600;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #f5f1ea;
}
.tc-links {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.tc-links li {
    padding: 0;
    margin: 0;
}
.tc-links a {
    display: block;
    padding: 0.55rem 0.75rem;
    background: #f5f1ea;
    border-radius: 6px;
    color: #1E3A5F;
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    line-height: 1.4;
}
.tc-links a:hover {
    background: #8B1E3F;
    color: white;
    transform: translateX(4px);
}
.tc-products {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px dashed #d6cebe;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1rem;
}
.tc-products a {
    color: #8B1E3F;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}
.tc-products a:hover {
    color: #1E3A5F;
    text-decoration: underline;
}
.tc-cluster-cta {
    background: linear-gradient(135deg, #1E3A5F 0%, #8B1E3F 100%);
    color: white;
    text-align: center;
    justify-content: center;
}
.tc-cluster-cta .tc-cluster-title {
    color: white;
    border-bottom-color: rgba(255,255,255,0.15);
}
.tc-cluster-cta p {
    color: rgba(255,255,255,0.88) !important;
}
.tc-cta-btn {
    display: inline-block;
    background: #ffd700;
    color: #1E3A5F !important;
    padding: 0.85rem 1.75rem;
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s ease;
}
.tc-cta-btn:hover {
    background: white;
    color: #8B1E3F !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
}
@media (max-width: 768px) {
    .topic-cluster-section { padding: 3rem 0; }
    .topic-cluster-section .tc-head h2 { font-size: 2rem; }
    .tc-grid { grid-template-columns: 1fr; }
}

/* ============================================
   BLOG İLGİLİ ÜRÜNLER & YAZILAR — Yatay linkleme
   ============================================ */
.related-section {
    padding: 4rem 0 3rem;
    background: linear-gradient(180deg, #f5f1ea 0%, #fff 100%);
    border-top: 3px solid #8B1E3F;
}
.related-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}
.related-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.65rem;
    color: #1E3A5F;
    margin: 0 0 0.5rem;
    font-weight: 600;
}
.related-sub {
    color: #64748b;
    font-size: 0.92rem;
    margin: 0 0 1.25rem;
}

/* Related products - kartlar */
.rel-prod-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}
.rel-prod-card {
    background: white;
    border: 1.5px solid #e5e0d4;
    border-radius: 8px;
    padding: 1rem 1.1rem;
    text-decoration: none;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.rel-prod-card:hover {
    border-color: #8B1E3F;
    background: #8B1E3F;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(139, 30, 63, 0.18);
}
.rel-prod-card strong {
    font-size: 0.95rem;
    color: #1E3A5F;
    font-weight: 700;
    transition: color 0.2s;
}
.rel-prod-card span {
    font-size: 0.78rem;
    color: #8B1E3F;
    font-weight: 600;
    transition: color 0.2s;
}
.rel-prod-card:hover strong,
.rel-prod-card:hover span {
    color: white;
}

/* Related articles - liste */
.rel-art-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.rel-art-link {
    display: block;
    padding: 0.7rem 0.95rem;
    background: white;
    border-left: 3px solid #1E3A5F;
    border-radius: 0 6px 6px 0;
    color: #1E3A5F;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.2s ease;
}
.rel-art-link:hover {
    background: #1E3A5F;
    color: white;
    border-left-color: #ffd700;
    border-left-width: 5px;
    padding-left: 1.1rem;
}

/* Related CTA strip */
.related-cta {
    background: linear-gradient(135deg, #1E3A5F 0%, #8B1E3F 100%);
    color: white;
    padding: 1.25rem 1.75rem;
    border-radius: 8px;
    text-align: center;
}
.related-cta p {
    margin: 0;
    color: white;
    font-size: 0.98rem;
    line-height: 1.6;
}
.related-cta a {
    color: #ffd700;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 215, 0, 0.5);
    transition: all 0.2s;
}
.related-cta a:hover {
    color: white;
    border-bottom-color: white;
}

@media (max-width: 768px) {
    .related-section { padding: 2.5rem 0 2rem; }
    .related-grid { grid-template-columns: 1fr; gap: 2rem; }
    .related-title { font-size: 1.4rem; }
}

/* ============================================
   DEEP CONTENT SECTION — Teknik Sözlük + Bakım + Mevzuat
   ============================================ */
.deep-content-section {
    padding: 5rem 0 3.5rem;
    background: #fafafa;
}
.deep-grid {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}
.deep-block {
    max-width: 1080px;
    margin: 0 auto;
    width: 100%;
}
.deep-block .deep-tag {
    display: inline-block;
    background: #1E3A5F;
    color: white;
    padding: 0.45rem 1.1rem;
    border-radius: 20px;
    font-size: 0.74rem;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-bottom: 1rem;
}
.deep-glossary .deep-tag { background: #1E3A5F; }
.deep-maintenance .deep-tag { background: #8B1E3F; }
.deep-regulations .deep-tag { background: #2d4972; }

.deep-block h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.2rem;
    color: #1E3A5F;
    margin: 0 0 1rem;
    font-weight: 600;
    line-height: 1.25;
}
.deep-block h2 em {
    color: #8B1E3F;
    font-style: italic;
}
.deep-block .deep-intro {
    color: #475569;
    font-size: 1.02rem;
    line-height: 1.75;
    margin: 0 0 2rem;
}

/* Glossary grid */
.glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}
.glossary-item {
    background: white;
    padding: 1.25rem 1.4rem;
    border-radius: 10px;
    border-left: 4px solid #1E3A5F;
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.06);
    transition: all 0.25s ease;
}
.glossary-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(30, 58, 95, 0.1);
    border-left-color: #8B1E3F;
}
.glossary-item h4 {
    color: #1E3A5F;
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
    font-weight: 700;
    font-family: 'Manrope', sans-serif;
}
.glossary-item p {
    color: #64748b;
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 0;
}

/* Maintenance & Regulations lists */
.maint-list, .reg-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.05);
}
.maint-list li, .reg-list li {
    padding: 1.1rem 1.4rem;
    border-bottom: 1px solid #f0eee5;
    color: #475569;
    line-height: 1.65;
    font-size: 0.95rem;
}
.maint-list li:last-child, .reg-list li:last-child {
    border-bottom: none;
}
.maint-list li strong {
    color: #8B1E3F;
    display: inline-block;
    margin-right: 0.5rem;
}
.reg-list li strong {
    color: #1E3A5F;
    display: inline-block;
    margin-right: 0.5rem;
}

/* Tip box */
.deep-tip {
    background: linear-gradient(135deg, #f5f1ea 0%, #fff 100%);
    border-left: 4px solid #ffd700;
    padding: 1.1rem 1.4rem;
    border-radius: 8px;
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.6;
}
.deep-tip strong {
    color: #1E3A5F;
}
.deep-tip a {
    color: #8B1E3F;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid currentColor;
}
.deep-tip a:hover {
    color: #1E3A5F;
}

@media (max-width: 768px) {
    .deep-content-section { padding: 3rem 0; }
    .deep-grid { gap: 2.5rem; }
    .deep-block h2 { font-size: 1.7rem; }
    .glossary-grid { grid-template-columns: 1fr; }
    .maint-list li, .reg-list li { padding: 0.95rem 1.1rem; font-size: 0.9rem; }
}

/* ============================================
   AUTHOR BIO — E-E-A-T Sinyali
   ============================================ */
.author-bio-section {
    padding: 3rem 0 3.5rem;
    background: #fff;
}
.author-bio {
    max-width: 880px;
    margin: 0 auto;
    background: linear-gradient(135deg, #f5f1ea 0%, #fff 100%);
    border-radius: 14px;
    padding: 2rem 2.25rem;
    border-left: 5px solid #8B1E3F;
    display: flex;
    gap: 1.75rem;
    align-items: flex-start;
    box-shadow: 0 4px 18px rgba(30, 58, 95, 0.06);
}
.author-avatar {
    flex-shrink: 0;
}
.author-initials {
    width: 84px;
    height: 84px;
    background: linear-gradient(135deg, #8B1E3F 0%, #1E3A5F 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.4rem;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(139, 30, 63, 0.3);
}
.author-info {
    flex: 1;
}
.author-info .author-label {
    display: inline-block;
    background: #1E3A5F;
    color: white;
    padding: 0.3rem 0.85rem;
    border-radius: 12px;
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-bottom: 0.6rem;
}
.author-info .author-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.7rem;
    color: #1E3A5F;
    margin: 0 0 0.6rem;
    font-weight: 600;
    line-height: 1.2;
}
.author-info .author-name span {
    display: block;
    font-size: 0.95rem;
    color: #8B1E3F;
    font-style: italic;
    margin-top: 0.2rem;
    font-family: 'Manrope', sans-serif;
    font-weight: 500;
}
.author-info .author-desc {
    color: #475569;
    font-size: 0.96rem;
    line-height: 1.7;
    margin: 0 0 1.1rem;
}
.author-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1.4rem;
}
.author-link {
    color: #8B1E3F;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}
.author-link:hover {
    color: #1E3A5F;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .author-bio {
        flex-direction: column;
        text-align: center;
        align-items: center;
        padding: 1.75rem 1.5rem;
    }
    .author-info .author-name { font-size: 1.5rem; }
    .author-links { justify-content: center; }
}

/* ============================================
   AI ASISTAN BANDI
   ============================================ */

.ai-banner-section {
    background: linear-gradient(135deg, #1E3A5F 0%, #152a42 60%, #6b0f2b 100%);
    position: relative;
    overflow: hidden;
    padding: 3rem 0;
}

.ai-banner-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* === YENİ: Banner Header (iki kart üzerindeki başlık) === */
.ai-banner-header {
    max-width: 1280px;
    margin: 0 auto 2rem;
    padding: 0 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.ai-banner-main-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin: 0.75rem 0 0.5rem;
}
.ai-banner-main-title em {
    color: #ff9d2f;
    font-style: italic;
    font-weight: 700;
}

.ai-banner-main-desc {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.65);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.5;
}

/* === YENİ: İki Kart Grid === */
.ai-banner-cards {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.ai-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.75rem;
    background: rgba(255,255,255,0.04);
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    font-family: inherit;
    width: 100%;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

button.ai-card {
    border-width: 1.5px;
}

.ai-card:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

/* SOL — Buhar Hesaplama (Mavi tema) */
.ai-card--calc {
    border-color: rgba(0, 180, 216, 0.25);
}
.ai-card--calc:hover {
    border-color: rgba(0, 180, 216, 0.6);
    box-shadow: 0 16px 40px rgba(0, 180, 216, 0.2);
}

/* SAĞ — AI Asistan (Turuncu tema) */
.ai-card--ai {
    border-color: rgba(255, 157, 47, 0.25);
}
.ai-card--ai:hover {
    border-color: rgba(255, 157, 47, 0.6);
    box-shadow: 0 16px 40px rgba(255, 157, 47, 0.2);
}

/* Kart İkonu */
.ai-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}

.ai-card-icon--calc {
    background: rgba(0, 180, 216, 0.15);
    border: 1.5px solid rgba(0, 180, 216, 0.35);
    color: #00b4d8;
}

.ai-card-icon--ai {
    background: rgba(255, 157, 47, 0.15);
    border: 1.5px solid rgba(255, 157, 47, 0.35);
    color: #ff9d2f;
}

/* AI ikonunda canlı pulse efekti */
.ai-card-pulse {
    position: absolute;
    top: 6px; right: 6px;
    width: 10px; height: 10px;
    background: #4ade80;
    border-radius: 50%;
    box-shadow: 0 0 8px #4ade80;
    animation: aiCardPulse 2s ease-in-out infinite;
}
@keyframes aiCardPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

/* Kart İçerik */
.ai-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
}

.ai-card-tag {
    display: inline-block;
    width: fit-content;
    background: rgba(0, 180, 216, 0.15);
    color: #00b4d8;
    border: 1px solid rgba(0, 180, 216, 0.3);
    border-radius: 14px;
    padding: 3px 10px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.ai-card-tag--ai {
    background: rgba(255, 157, 47, 0.15);
    color: #ff9d2f;
    border-color: rgba(255, 157, 47, 0.3);
}

.ai-card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    margin: 0.25rem 0;
}

.ai-card-desc {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.55;
    margin: 0;
}
.ai-card-desc strong {
    color: #fff;
    font-weight: 700;
}

.ai-card-features {
    list-style: none;
    margin: 0.5rem 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ai-card-features li {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.62);
    line-height: 1.4;
    padding-left: 0;
}

/* CTA Buton (kart içinde) */
.ai-card-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 1rem;
    padding: 11px 18px;
    border-radius: 12px;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: all 0.2s ease;
    width: fit-content;
}

.ai-card-cta--calc {
    background: linear-gradient(135deg, #00b4d8 0%, #0096b8 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 180, 216, 0.35);
}
.ai-card--calc:hover .ai-card-cta--calc {
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.5);
    transform: translateX(2px);
}

.ai-card-cta--ai {
    background: linear-gradient(135deg, #ff9d2f 0%, #e57e10 100%);
    color: #1E3A5F;
    box-shadow: 0 4px 14px rgba(255, 157, 47, 0.35);
}
.ai-card--ai:hover .ai-card-cta--ai {
    box-shadow: 0 6px 20px rgba(255, 157, 47, 0.5);
    transform: translateX(2px);
}

/* === Mobil — Kartlar alt alta === */
@media (max-width: 880px) {
    .ai-banner-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0 1rem;
    }
    .ai-banner-header {
        padding: 0 1rem;
        margin-bottom: 1.5rem;
    }
    .ai-card {
        padding: 1.25rem;
        gap: 1rem;
    }
    .ai-card-icon {
        width: 52px; height: 52px;
    }
    .ai-card-icon svg {
        width: 26px; height: 26px;
    }
    .ai-card-title { font-size: 1.1rem; }
    .ai-card-desc { font-size: 0.85rem; }
    .ai-card-features li { font-size: 0.78rem; }
    .ai-card-cta {
        width: 100%;
        padding: 10px 14px;
        font-size: 0.88rem;
    }
}

@media (max-width: 480px) {
    .ai-banner-section { padding: 2rem 0; }
    .ai-banner-main-title { font-size: 1.3rem; }
    .ai-banner-main-desc { font-size: 0.85rem; }
    .ai-card { padding: 1rem; flex-direction: row; }
    .ai-card-icon {
        width: 44px; height: 44px;
        border-radius: 12px;
    }
    .ai-card-icon svg { width: 22px; height: 22px; }
    .ai-card-tag { font-size: 9.5px; padding: 2px 8px; }
    .ai-card-title { font-size: 1rem; margin: 0.2rem 0; }
    .ai-card-desc { font-size: 0.8rem; line-height: 1.5; }
    .ai-card-features { gap: 3px; }
    .ai-card-features li { font-size: 0.74rem; }
    .ai-card-cta {
        margin-top: 0.75rem;
        padding: 9px 12px;
        font-size: 0.82rem;
    }
}

/* === Eski Banner Stilleri (kullanılmıyor ama uyumluluk için) === */
.ai-banner-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: flex;
    align-items: center;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.ai-banner-left {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    flex: 1;
}

.ai-banner-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(255,157,47,0.15);
    border: 1.5px solid rgba(255,157,47,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ff9d2f;
    flex-shrink: 0;
    animation: aiPulseIcon 3s ease-in-out infinite;
}
@keyframes aiPulseIcon {
    0%,100% { box-shadow: 0 0 0 0 rgba(255,157,47,0.3); }
    50% { box-shadow: 0 0 0 10px rgba(255,157,47,0); }
}

.ai-banner-tag {
    display: inline-block;
    background: rgba(255,157,47,0.15);
    color: #ff9d2f;
    border: 1px solid rgba(255,157,47,0.3);
    border-radius: 20px;
    padding: 3px 12px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.ai-banner-title {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.5vw, 1.75rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 8px;
}

.ai-banner-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    max-width: 420px;
}

.ai-banner-desc strong {
    color: #ff9d2f;
    font-weight: 700;
}

.ai-banner-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
    max-width: 480px;
}

.ai-feature-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.85);
    padding: 4px 10px;
    border-radius: 14px;
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: 0.2px;
    transition: all 0.2s ease;
}

.ai-feature-chip:hover {
    background: rgba(255,157,47,0.12);
    border-color: rgba(255,157,47,0.35);
    color: #fff;
    transform: translateY(-1px);
}

.ai-banner-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.25rem;
    flex-shrink: 0;
}

.ai-banner-bubbles {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 300px;
}

.ai-bubble {
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.45;
    animation: aiBubbleFade 0.5s ease;
}
@keyframes aiBubbleFade {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.ai-bubble--user {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.9);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    text-align: right;
}

.ai-bubble--bot {
    background: rgba(255,157,47,0.12);
    color: rgba(255,255,255,0.8);
    border: 1px solid rgba(255,157,47,0.2);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
}

.ai-banner-btn {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #8B1E3F, #b52a52);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 20px rgba(139,30,63,0.45);
    white-space: nowrap;
}
.ai-banner-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(139,30,63,0.55);
}

/* ── Inline Chat ── */
.ai-inline-chat {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem 2.5rem;
    position: relative;
    z-index: 1;
    animation: aiSlideDown 0.3s ease;
}
@keyframes aiSlideDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.ai-inline-chat > * {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.12);
}

.ai-inline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-radius: 16px 16px 0 0;
    border-bottom: 1px solid rgba(255,255,255,0.08) !important;
}

.ai-inline-header-info { display: flex; align-items: center; gap: 10px; color: #fff; }

.ai-inline-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(255,157,47,0.2);
    border: 1.5px solid rgba(255,157,47,0.4);
    display: flex; align-items: center; justify-content: center;
    color: #ff9d2f;
}

.ai-inline-name { font-size: 14px; font-weight: 700; color: #fff; }
.ai-inline-status { font-size: 11px; color: rgba(255,255,255,0.55); display: flex; align-items: center; gap: 5px; margin-top: 2px; }
.ai-dot { width: 6px; height: 6px; border-radius: 50%; background: #4ade80; display: inline-block; animation: aiPulse 2s infinite; }
@keyframes aiPulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

.ai-inline-close {
    background: none; border: none; color: rgba(255,255,255,0.5);
    cursor: pointer; padding: 4px; border-radius: 6px; display: flex;
    transition: color 0.15s;
}
.ai-inline-close:hover { color: #fff; }

.ai-inline-messages {
    min-height: 180px;
    max-height: 280px;
    overflow-y: auto;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
    border-radius: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
}
.ai-inline-messages::-webkit-scrollbar { width: 4px; }
.ai-inline-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }

.ai-inline-msg {
    max-width: 80%;
    padding: 9px 13px;
    border-radius: 12px;
    font-size: 13.5px;
    line-height: 1.5;
    word-break: break-word;
    white-space: pre-wrap;
}
.ai-inline-msg.bot {
    background: rgba(255,255,255,0.10);
    color: rgba(255,255,255,0.9);
    border-bottom-left-radius: 3px;
    align-self: flex-start;
}
.ai-inline-msg.user {
    background: linear-gradient(135deg, #8B1E3F, #6b0f2b);
    color: #fff;
    border-bottom-right-radius: 3px;
    align-self: flex-end;
}

.ai-inline-typing {
    display: flex; gap: 4px; align-items: center;
    padding: 10px 14px;
    background: rgba(255,255,255,0.10);
    border-radius: 12px;
    border-bottom-left-radius: 3px;
    width: fit-content;
}
.ai-inline-typing span {
    width: 6px; height: 6px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    animation: aiBounce 1.2s infinite;
}
.ai-inline-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-inline-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes aiBounce { 0%,60%,100%{transform:translateY(0)} 30%{transform:translateY(-6px)} }

.ai-inline-suggestions {
    padding: 10px 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    border-top: 1px solid rgba(255,255,255,0.08) !important;
    border-bottom: 1px solid rgba(255,255,255,0.08) !important;
    border-radius: 0 !important;
    border-left: none !important;
    border-right: none !important;
    background: rgba(255,255,255,0.04) !important;
}

.ai-sugg-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 5px 13px;
    font-size: 12px;
    font-family: var(--font-body);
    color: rgba(255,255,255,0.8);
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.ai-sugg-btn:hover {
    background: rgba(255,157,47,0.15);
    border-color: rgba(255,157,47,0.3);
    color: #ff9d2f;
}

.ai-inline-input-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
}

#aiInlineInput {
    flex: 1;
    background: rgba(255,255,255,0.08);
    border: 1.5px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 9px 12px;
    font-size: 13.5px;
    font-family: var(--font-body);
    color: #fff;
    resize: none;
    outline: none;
    max-height: 100px;
    overflow-y: auto;
    transition: border-color 0.15s;
}
#aiInlineInput::placeholder { color: rgba(255,255,255,0.35); }
#aiInlineInput:focus { border-color: rgba(255,157,47,0.5); }

#aiInlineSend {
    width: 36px; height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, #8B1E3F, #6b0f2b);
    border: none; color: #fff; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: opacity 0.15s;
}
#aiInlineSend:hover { opacity: 0.85; }
#aiInlineSend:disabled { opacity: 0.4; cursor: not-allowed; }

.ai-inline-powered {
    text-align: center;
    font-size: 10.5px;
    color: rgba(255,255,255,0.25);
    padding: 6px 0 10px;
    border-radius: 0 0 16px 16px !important;
    border-top: none !important;
}

/* Mobil */
@media (max-width: 768px) {
    .ai-banner-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
        padding: 2rem 1.25rem;
    }
    .ai-banner-right { align-items: flex-start; width: 100%; }
    .ai-banner-bubbles { max-width: 100%; }
    .ai-banner-btn { width: 100%; justify-content: center; }
    .ai-inline-chat { padding: 0 1.25rem 2rem; }
}

/* Mobilde floating butonlar sadece ikon */
@media (max-width: 480px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
    }
    .whatsapp-float .float-label { display: none; }
}

/* ── Ürün Sayfası İnfografik ── */
.product-infografik {
    margin-bottom: 1.75rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(21,42,66,0.12);
    border: 1px solid rgba(21,42,66,0.08);
}
.product-infografik img {
    width: 100%;
    height: auto;
    display: block;
}

/* ── Teknik Görsel (Nedir bölümü üstü) — tüm sayfalarda eşit boyut ── */
.product-infografik {
    width: 100%;
    max-width: 860px;
    margin: 0 auto 2rem auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(21,42,66,0.12);
}
.product-infografik img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    vertical-align: bottom;
}

/* ── Blog küçük kart görseli ── */
.blog-card-img-sm {
    display: block;
    overflow: hidden;
    border-radius: 10px 10px 0 0;
    line-height: 0;
}
.blog-card-img-sm svg {
    width: 100%;
    height: 160px;
    display: block;
    border-radius: 10px 10px 0 0;
}
.blog-card-sm {
    overflow: hidden;
}

/* ── Blog Article Styles ── */
.blog-article { padding: 3rem 0 5rem; }
.blog-article h1 { font-family:'Cormorant Garamond',serif; font-size:2.6rem; color:var(--color-navy-dark); line-height:1.2; margin-bottom:1.5rem; }
.blog-lead { font-size:1.15rem; color:#475569; line-height:1.8; margin-bottom:2rem; border-left:4px solid #8B1E3F; padding-left:1.2rem; }
.blog-toc { background:#f8fafc; border:1px solid #e2e8f0; border-radius:10px; padding:1.5rem 2rem; margin-bottom:2.5rem; }
.blog-toc h3 { font-size:1rem; font-weight:700; color:var(--color-navy-dark); margin-bottom:0.75rem; }
.blog-toc ol { margin:0; padding-left:1.2rem; }
.blog-toc li { margin-bottom:0.4rem; }
.blog-toc a { color:#8B1E3F; font-size:0.95rem; }
.blog-article h2 { font-family:'Cormorant Garamond',serif; font-size:1.9rem; color:var(--color-navy-dark); margin:2.5rem 0 1rem; }
.blog-article h3 { font-size:1.15rem; font-weight:700; color:var(--color-navy-dark); margin:1.8rem 0 0.75rem; }
.blog-article p { line-height:1.85; color:#374151; margin-bottom:1.2rem; }
.blog-article ul, .blog-article ol { line-height:1.85; color:#374151; margin-bottom:1.2rem; padding-left:1.5rem; }
.blog-article li { margin-bottom:0.5rem; }
.blog-formula { background:linear-gradient(135deg,#1E3A5F,#8B1E3F); color:#fff; border-radius:10px; padding:1.5rem 2rem; margin:1.5rem 0; font-family:'Cormorant Garamond',serif; font-size:1.4rem; text-align:center; }
.blog-formula small { display:block; font-family:'Manrope',sans-serif; font-size:0.82rem; margin-top:0.5rem; opacity:0.8; }
.blog-table-wrap { overflow-x:auto; margin:1.5rem 0; }
.blog-table { width:100%; border-collapse:collapse; font-size:0.9rem; }
.blog-table th { background:#1E3A5F; color:#fff; padding:0.75rem 1rem; text-align:left; font-weight:600; }
.blog-table td { padding:0.65rem 1rem; border-bottom:1px solid #e2e8f0; color:#374151; }
.blog-table tr:nth-child(even) td { background:#f8fafc; }
.blog-callout { border-radius:10px; padding:1.2rem 1.5rem; margin:1.5rem 0; }
.blog-callout.info { background:#eff6ff; border-left:4px solid #3b82f6; }
.blog-callout.warning { background:#fffbeb; border-left:4px solid #f59e0b; }
.blog-callout.success { background:#f0fdf4; border-left:4px solid #22c55e; }
.blog-callout strong { display:block; margin-bottom:0.4rem; }
.blog-list-styled { display:flex; flex-direction:column; gap:1rem; margin:1.5rem 0; }
.blog-list-item { display:flex; gap:1rem; align-items:flex-start; background:#f8fafc; border-radius:10px; padding:1.2rem; }
.blog-list-item .num { background:#8B1E3F; color:#fff; width:32px; height:32px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:0.85rem; flex-shrink:0; }
.blog-list-item strong { display:block; margin-bottom:0.3rem; color:var(--color-navy-dark); }
.blog-list-item p { margin:0; font-size:0.92rem; }
.blog-faq { margin:2rem 0; }
.blog-faq details { border:1px solid #e2e8f0; border-radius:8px; margin-bottom:0.75rem; overflow:hidden; }
.blog-faq summary { padding:1rem 1.2rem; cursor:pointer; font-weight:600; color:var(--color-navy-dark); background:#f8fafc; list-style:none; }
.blog-faq summary::-webkit-details-marker { display:none; }
.blog-faq summary::after { content:'＋'; float:right; color:#8B1E3F; }
.blog-faq details[open] summary::after { content:'－'; }
.blog-faq details p { padding:1rem 1.2rem; margin:0; border-top:1px solid #e2e8f0; }
.blog-cta-box { background:linear-gradient(135deg,#1E3A5F,#8B1E3F); color:#fff; border-radius:14px; padding:2.5rem; text-align:center; margin:3rem 0 2rem; }
.blog-cta-box h3 { color:#fff; font-family:'Cormorant Garamond',serif; font-size:1.8rem; margin-bottom:0.75rem; }
.blog-cta-box p { color:rgba(255,255,255,0.85); margin-bottom:1.5rem; }
.blog-author-box { display:flex; gap:1.5rem; align-items:center; border:1px solid #e2e8f0; border-radius:12px; padding:1.5rem; margin-top:2rem; }
.author-avatar { width:60px; height:60px; border-radius:50%; flex-shrink:0; }
.blog-author-box strong { display:block; font-weight:700; color:var(--color-navy-dark); margin-bottom:0.2rem; }
.blog-author-box span { font-size:0.85rem; color:#64748b; display:block; margin-bottom:0.5rem; }
.blog-author-box p { margin:0; font-size:0.9rem; color:#475569; }

/* ============================================================
   MOBİL OPTİMİZASYON — Kapsamlı Düzeltmeler
   ============================================================ */

/* ── Tablet (768px) ── */
@media (max-width: 768px) {
    /* Hero */
    .hero h1 { font-size: 2.2rem; }
    .hero-lead { font-size: 1rem; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }

    /* Ürün grid — 2 kolon */
    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .product-card.featured { grid-column: auto; }

    /* Ürün sayfası galeri */
    .product-gallery { grid-template-columns: 1fr; }
    .gallery-main { max-height: 320px; }

    /* Blog article */
    .blog-article h1 { font-size: 1.9rem; }
    .blog-lead { font-size: 1rem; }
    .blog-list-item { flex-direction: column; }

    /* Selector cards (serpantinli) */
    .product-selector-grid { grid-template-columns: 1fr; gap: 1.5rem; }

    /* Çözüm sayfaları */
    .related-products-grid { grid-template-columns: repeat(2, 1fr); }

    /* Footer */
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .footer-brand { grid-column: 1 / -1; }

    /* Admin panel */
    .admin-grid { grid-template-columns: 1fr !important; }

    /* Infografik — tam genişlik */
    .product-infografik { max-width: 100%; }

    /* Table scroll hint */
    .blog-table-wrap::before {
        content: "← Tabloyu kaydırın →";
        display: block;
        text-align: center;
        font-size: 11px;
        color: #94a3b8;
        margin-bottom: 4px;
    }
}

/* ── Mobil (480px ve altı) ── */
@media (max-width: 480px) {
    /* Hero */
    .hero h1 { font-size: 1.7rem; line-height: 1.25; }
    .hero-lead { font-size: 0.92rem; }
    .hero-actions { flex-direction: column; gap: 0.75rem; }
    .hero-actions .btn { width: 100%; text-align: center; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }

    /* Ürün grid — tek kolon */
    .products-grid { grid-template-columns: 1fr; }
    .products-grid .product-card .product-visual { height: 200px !important; }

    /* Section headers */
    .section-head h2 { font-size: 1.7rem; }

    /* Blog makale */
    .blog-article { padding: 2rem 0 3rem; }
    .blog-article h1 { font-size: 1.6rem; }
    .blog-article h2 { font-size: 1.4rem; }
    .blog-formula { font-size: 1.1rem; padding: 1rem; }
    .blog-toc { padding: 1rem 1.2rem; }
    .blog-cta-box { padding: 1.75rem 1.25rem; }
    .blog-cta-box h3 { font-size: 1.4rem; }
    .blog-author-box { flex-direction: column; gap: 1rem; }

    /* Blog grid */
    .blog-compact-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }

    /* Chat widget */
    #grd-chat-window { 
        width: calc(100vw - 20px) !important; 
        right: 10px !important; 
        left: 10px !important;
        bottom: 70px !important;
        max-height: 65vh !important;
    }

    /* WhatsApp butonu ve chat butonu çakışmasın */
    .whatsapp-float { bottom: 80px; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; }
    .footer-col { border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 1.5rem; }

    /* Formlar */
    .form-row { grid-template-columns: 1fr; }
    .contact-form input, .contact-form textarea, .contact-form select {
        font-size: 16px; /* iOS zoom engellemek için */
    }

    /* Tablo */
    .blog-table th, .blog-table td { 
        padding: 0.5rem 0.65rem; 
        font-size: 0.82rem; 
    }

    /* Trust bar */
    .trust-items { grid-template-columns: repeat(2, 1fr); }

    /* Referans kartları */
    .refs-grid { grid-template-columns: 1fr; }

    /* İletişim sayfası */
    .contact-grid { grid-template-columns: 1fr; }
    .contact-info-cards { grid-template-columns: 1fr; }

    /* Ürün sayfası tech specs */
    .specs-table td { font-size: 0.85rem; padding: 0.5rem 0.75rem; }
    
    /* Çözüm sayfaları */
    .related-products-grid { grid-template-columns: 1fr; }
    
    /* Breadcrumb kısalt */
    .breadcrumb .sep { margin: 0 4px; }
}

/* ── Çok küçük ekranlar (360px) ── */
@media (max-width: 360px) {
    .container { padding: 0 0.75rem; }
    .hero h1 { font-size: 1.5rem; }
    .logo-img { width: 140px; }
    .btn { padding: 0.65rem 1rem; font-size: 0.85rem; }
}

/* ── iOS input zoom fix ── */
input[type="text"], input[type="email"], input[type="tel"], 
input[type="number"], select, textarea {
    font-size: 16px !important; /* prevents iOS auto-zoom */
}

/* ── Touch targets: minimum 44px ── */
@media (max-width: 768px) {
    .btn, 
    .nav-toggle,
    .blog-cat-btn,
    .product-link,
    .blog-link,
    summary {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .blog-link { display: inline-flex; }
    summary { display: flex; justify-content: space-between; }
}

/* ── Header sabit yükseklik mobile'da ── */
@media (max-width: 768px) {
    .header { 
        position: sticky; 
        top: 0; 
        z-index: 1000;
        box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    }
    .header-content { padding: 0.75rem 1rem; }
    .logo-img { width: 150px; height: auto; }
}

/* ── Ürün detay sayfası mobil ── */
@media (max-width: 768px) {
    .product-detail-grid { grid-template-columns: 1fr !important; }
    .content-block h2 { font-size: 1.5rem; }
    .tech-specs table { font-size: 0.85rem; }
    .product-tabs { flex-wrap: wrap; gap: 0.5rem; }
    .tab-btn { padding: 0.5rem 0.9rem; font-size: 0.85rem; }
}

/* ============================================================
   MOBİL GÖRÜNÜM DÜZELTMELERİ — AI Banner & Chat Widget
   ============================================================ */

/* AI Banner mobilde kompakt */
@media (max-width: 480px) {
    .ai-banner-section { padding: 0; }
    .ai-banner-inner { padding: 1.5rem 1rem; gap: 1.25rem; }
    .ai-banner-icon { width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0; }
    .ai-banner-icon svg { width: 20px; height: 20px; }
    .ai-banner-tag { font-size: 10px; padding: 2px 8px; }
    .ai-banner-title { font-size: 1.1rem; }
    .ai-banner-desc { font-size: 0.85rem; line-height: 1.5; }
    .ai-banner-features { gap: 4px; margin-top: 8px; }
    .ai-feature-chip { font-size: 10.5px; padding: 3px 8px; }
    .ai-banner-bubbles { display: none; } /* Mobilden kabarcıkları gizle, yer açılsın */
    .ai-banner-btn { 
        width: 100%; 
        padding: 0.75rem 1rem; 
        font-size: 0.9rem;
    }
    .ai-inline-chat { 
        padding: 0 0.75rem 1.5rem; 
        max-height: 55vh;
    }
    .ai-inline-messages { max-height: 200px; }
    .ai-sugg-btn { font-size: 0.78rem; padding: 0.4rem 0.7rem; }
}

/* Chat widget mobilede tam genişlik, ekran dışına taşmasın */
@media (max-width: 480px) {
    #grd-chat-widget { 
        right: 10px !important; 
        bottom: 70px !important;
    }
    #grd-chat-window {
        width: calc(100vw - 20px) !important;
        right: 10px !important;
        left: 10px !important;
        bottom: 125px !important;
        max-height: 55vh !important;
        border-radius: 14px !important;
    }
    /* Chat buton boyutu küçült */
    #grd-chat-trigger {
        width: 50px !important;
        height: 50px !important;
    }
}

/* WhatsApp mobilede aşağı kaymasın, chat ile çakışmasın */
@media (max-width: 480px) {
    .whatsapp-float {
        bottom: 14px !important;
        right: 14px !important;
        width: 48px !important;
        height: 48px !important;
        padding: 0 !important;
        border-radius: 50% !important;
    }
    .whatsapp-float .float-label { display: none !important; }
    .whatsapp-float svg { width: 22px; height: 22px; }
}

/* Hamburger menü sağda olsun (zaten öyle ama kontrol) */
@media (max-width: 768px) {
    .header-content { 
        display: flex; 
        align-items: center; 
        justify-content: space-between;
    }
    .nav-toggle { 
        order: 3; 
        margin-left: auto;
    }
    .header-actions .btn { display: none; } /* Teklif Al butonunu header'dan gizle mobilede */
    .header-actions .nav-toggle { display: flex; }
}

/* Top bar mobilede gizle — yer açılsın */
@media (max-width: 480px) {
    .top-bar { display: none; }
}

/* Hero mobilede daha kompakt */
@media (max-width: 480px) {
    .hero { padding: 2.5rem 0 3rem; }
    .hero h1 { font-size: 1.65rem; line-height: 1.2; }
    .hero-lead { font-size: 0.9rem; }
}

/* ============================================================
   MOBİL v16 — Hedefli Düzeltmeler (Ekrandan görülen sorunlar)
   ============================================================ */

/* Trust bar — 400px'de 2 kolon yeterli değil, tek kolon yap */
@media (max-width: 480px) {
    .trust-bar { padding: 1.5rem 0; }
    .trust-items { 
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    .trust-item { 
        flex-direction: column; 
        align-items: flex-start; 
        gap: 0.4rem;
        padding: 0.75rem;
        background: #f8fafc;
        border-radius: 8px;
    }
    .trust-item strong { font-size: 0.82rem; }
    .trust-item span { font-size: 0.75rem; }
}

/* AI Banner — daha kompakt, sıkışmıyor */
@media (max-width: 480px) {
    .ai-banner-inner { 
        flex-direction: column;
        padding: 1.25rem 1rem; 
        gap: 1rem; 
    }
    .ai-banner-left { gap: 0.75rem; }
    .ai-banner-icon { 
        width: 42px; height: 42px; 
        border-radius: 10px;
    }
    .ai-banner-icon svg { width: 20px; height: 20px; }
    .ai-banner-tag { font-size: 9px; padding: 2px 8px; margin-bottom: 4px; }
    .ai-banner-title { font-size: 1rem; margin-bottom: 4px; }
    .ai-banner-desc { font-size: 0.82rem; line-height: 1.5; }
    .ai-banner-features { gap: 4px; margin-top: 6px; }
    .ai-feature-chip { font-size: 10px; padding: 2px 7px; }
    .ai-banner-right { width: 100%; }
    .ai-banner-bubbles { display: none; }
    .ai-banner-btn { 
        width: 100%; 
        padding: 0.7rem 1rem; 
        font-size: 0.88rem;
        justify-content: center;
    }
}

/* WhatsApp — altta sabit küçük daire */
@media (max-width: 600px) {
    .whatsapp-float {
        bottom: 14px !important;
        right: 14px !important;
        width: 50px !important;
        height: 50px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        justify-content: center !important;
    }
    .whatsapp-float .float-label { display: none !important; }
}

/* Top bar — mobilede gizle */
@media (max-width: 600px) {
    .top-bar { display: none !important; }
}

/* Header — mobilde sadece logo + hamburger */
@media (max-width: 600px) {
    .header-content { padding: 0.6rem 1rem; }
    .header-actions > a.btn { display: none !important; }
    .logo-img { width: 140px; height: auto; }
}

/* ============================================================
   MOBİL v17 — CTA Box + Buton Hizası Düzeltmeleri
   ============================================================ */

/* CTA box mobilede tek kolon — "özel teklif" düzgün görünsün */
@media (max-width: 600px) {
    .cta-box {
        grid-template-columns: 1fr !important;
        padding: 2rem 1.25rem !important;
        gap: 1.5rem !important;
        text-align: center;
    }
    .cta-text h2 {
        font-size: 1.6rem !important;
        line-height: 1.25;
    }
    .cta-text h2 em {
        display: inline;
        color: #ff7ba0 !important;
    }
    .cta-text p { font-size: 0.9rem; }
    .cta-actions {
        flex-direction: column;
        gap: 0.75rem;
        align-items: stretch;
    }
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Chat (Canlı Destek) ikonu ile WhatsApp aynı hizaya — 
   ikisi de bottom: 14px, biri sağda biri solda */
@media (max-width: 600px) {
    /* WhatsApp — sol alt */
    .whatsapp-float {
        bottom: 14px !important;
        left: 14px !important;
        right: auto !important;
        width: 50px !important;
        height: 50px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        justify-content: center !important;
    }
    .whatsapp-float .float-label { display: none !important; }
    
    /* Chat widget — sağ alt, WhatsApp ile aynı yükseklik */
    #grd-chat-widget {
        bottom: 14px !important;
        right: 14px !important;
        left: auto !important;
    }
}

/* ============================================================
   MOBİL FINAL — WhatsApp + Chat aynı hiza, CTA kaldırıldı
   ============================================================ */
@media (max-width: 600px) {
    /* WhatsApp — sol alt, bottom:14px */
    .whatsapp-float {
        position: fixed !important;
        bottom: 14px !important;
        left: 14px !important;
        right: auto !important;
        width: 50px !important;
        height: 50px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        justify-content: center !important;
        z-index: 9997 !important;
    }
    .whatsapp-float .float-label { display: none !important; }
    .whatsapp-float svg { width: 22px !important; height: 22px !important; }

    /* CTA section gizle (zaten kaldırıldı ama yedek) */
    .cta-section { display: none !important; }
}

/* ── WP / AI kısa etiket ── */
.wp-short-label { display: none; }

@media (max-width: 600px) {
    /* WhatsApp: ikon gizle, WP yaz */
    .whatsapp-float .wp-icon-full { display: none !important; }
    .whatsapp-float .float-label  { display: none !important; }
    .whatsapp-float .wp-short-label {
        display: flex !important;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 800;
        letter-spacing: 0.5px;
        color: #fff;
        width: 100%;
        height: 100%;
    }
}

/* ── Ürün Sayfası Katalog İndirme Barı ── */
.katalog-download-bar {
    background: linear-gradient(135deg, #1E3A5F 0%, #152840 100%);
    border-radius: 14px;
    margin: 2.5rem 0;
}
.katalog-dl-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.25rem 1.75rem;
}
.katalog-dl-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255,255,255,0.9);
}
.katalog-dl-info svg { color: #ff7ba0; flex-shrink: 0; }
.katalog-dl-info strong { display: block; font-size: 0.95rem; color: #fff; margin-bottom: 2px; }
.katalog-dl-info span { font-size: 0.82rem; color: rgba(255,255,255,0.6); }
.katalog-dl-btn-inline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #8B1E3F;
    color: #fff;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.88rem;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.2s;
}
.katalog-dl-btn-inline:hover { background: #6d1830; }
@media (max-width: 600px) {
    .katalog-dl-inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .katalog-dl-btn-inline { width: 100%; justify-content: center; }
}

/* ── Header Teklif Al butonu kompakt ── */
.header-actions .btn {
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem !important;
    white-space: nowrap;
}

/* ============================================
   MOBİL YATAY KAYMA FIX - 02 May 2026
   Tüm sayfalarda yatay overflow'u sıkı şekilde engeller
   ============================================ */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden !important;
        max-width: 100vw !important;
        width: 100%;
        position: relative;
    }
    /* Hiçbir alt eleman görünür şekilde viewport'u aşmasın */
    body * {
        max-width: 100%;
    }
    /* Container ve section'lar viewport'u aşmasın */
    section, .container, header, footer, main, nav, article {
        max-width: 100vw;
        overflow-x: hidden;
    }
    /* Tablolar zaten kendi sarmalayıcılarında scroll yapsın */
    table {
        max-width: 100%;
    }
    /* Resim ve videolar */
    img, video, iframe, svg {
        max-width: 100% !important;
        height: auto;
    }
    /* Yatay scroll edilebilen alanlar bu kuralın dışında kalsın (touch-scroll için) */
    .blog-table-wrap,
    .scroll-x,
    [data-scroll-x] {
        overflow-x: auto;
    }
}

/* ==========================================================================
   PILLAR & DERGI BANNER - Mobile Responsive Fix (v6)
   Inline grid-template-columns mobilde tek kolona düşmüyordu, düzeltme
   ========================================================================== */
.pillar-banner-section .container > div,
.dergi-banner-section .container > div {
    /* Desktop default: inline style ile gelir, sorun yok */
}
@media (max-width: 768px) {
    .pillar-banner-section .container > div[style*="grid-template-columns"],
    .dergi-banner-section .container > div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }
    /* Pillar banner: A→Z kutusunun padding'ini mobilde küçült */
    .pillar-banner-section .container > div > div:last-child[style*="padding:2rem"] {
        padding: 0 !important;
    }
    /* Pillar banner: Üst kutu boyutu mobilde küçülsün */
    .pillar-banner-section .container > div > div:last-child > div {
        padding: 1.75rem 1.25rem !important;
    }
    .pillar-banner-section .container > div > div:last-child > div > div:first-child {
        font-size: 2.5rem !important;
    }
    /* Dergi banner mobil görsel düzeltme */
    .dergi-banner-section img {
        max-width: 220px !important;
    }
}

/* === PILLAR BANNER — Genel iyileştirme: A→Z kutusu çok büyük olmasın === */
@media (max-width: 480px) {
    .pillar-banner-section h2 {
        font-size: 1.85rem !important;
    }
    .pillar-banner-section .container {
        padding: 0 1.25rem !important;
    }
}