/* ============================================
   BİMSAN UYKU SİSTEMLERİ - ANA STİL DOSYASI
   Premium, Modern, Minimal Tasarım
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Değişkenleri */
:root {
    --color-primary: #1a1a2e;
    --color-secondary: #2d2d44;
    --color-accent: #c9a96e;
    --color-accent-dark: #a8864f;
    --color-white: #ffffff;
    --color-off-white: #f8f7f5;
    --color-light-gray: #f2f0ed;
    --color-mid-gray: #e8e5e0;
    --color-text: #2c2c2c;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #e0ddd8;
    --color-anthracite: #3d3d3d;
    
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.10);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.14);
    --shadow-xl: 0 16px 60px rgba(0,0,0,0.18);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --container-max: 1280px;
    --header-height: 80px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-body);
}

input, textarea, select {
    font-family: var(--font-body);
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-sm {
    padding: 48px 0;
}

.section-lg {
    padding: 120px 0;
}

/* ============================================
   TİPOGRAFİ
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

/* ============================================
   BUTONLAR
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 169, 110, 0.35);
}

.btn-dark {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-dark:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.btn-lg {
    padding: 18px 44px;
    font-size: 15px;
}

.btn-sm {
    padding: 10px 22px;
    font-size: 13px;
}

.btn-whatsapp {
    background: #25D366;
    color: white;
    border-color: #25D366;
}

.btn-whatsapp:hover {
    background: #1da851;
    border-color: #1da851;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-top {
    background: var(--color-primary);
    padding: 8px 0;
    font-size: 13px;
}

.header-top .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-top-left {
    display: flex;
    align-items: center;
    gap: 20px;
    color: rgba(255,255,255,0.7);
}

.header-top-left a {
    color: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-top-left a:hover {
    color: var(--color-accent);
}

.header-top-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-social {
    display: flex;
    gap: 12px;
}

.header-social a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    transition: var(--transition);
}

.header-social a:hover {
    color: var(--color-white);
    border-color: var(--color-accent);
    background: var(--color-accent);
}

.header-lang {
    display: flex;
    gap: 4px;
}

.header-lang a {
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 2px 8px;
    border-radius: 3px;
    transition: var(--transition);
}

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

.header-main {
    background: var(--color-white);
    height: var(--header-height);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.site-header.scrolled .header-main {
    box-shadow: var(--shadow-md);
}

.site-header.scrolled .header-top {
    display: none;
}

.header-main .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 22px;
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -1px;
}

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

.logo-name {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.logo-tagline {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
}

/* Navigasyon */
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
    background: var(--color-off-white);
}

.nav-link i {
    font-size: 10px;
    transition: var(--transition);
}

.nav-item:hover .nav-link i {
    transform: rotate(180deg);
}

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    z-index: 100;
}

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

.dropdown-item {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--color-off-white);
    color: var(--color-accent);
    padding-left: 20px;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-catalog-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}

.header-catalog-btn:hover {
    background: var(--color-accent-dark);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO SLIDER
   ============================================ */

.hero-slider {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 900px;
    overflow: hidden;
    margin-top: calc(var(--header-height) + 40px);
}

.slider-track {
    display: flex;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}

.slide.active .slide-bg {
    transform: scale(1);
}

.slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0.75) 0%,
        rgba(26, 26, 46, 0.4) 50%,
        rgba(26, 26, 46, 0.2) 100%
    );
}

.slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
}

.slide-content .container {
    max-width: 800px;
    margin-left: 80px;
}

.slide-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease 0.2s;
}

.slide.active .slide-label {
    opacity: 1;
    transform: translateY(0);
}

.slide-title {
    font-family: var(--font-heading);
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.15;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s ease 0.3s;
}

.slide.active .slide-title {
    opacity: 1;
    transform: translateY(0);
}

.slide-desc {
    font-size: 17px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 560px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.7s ease 0.4s;
}

.slide.active .slide-desc {
    opacity: 1;
    transform: translateY(0);
}

.slide-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.7s ease 0.5s;
}

.slide.active .slide-actions {
    opacity: 1;
    transform: translateY(0);
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.slider-dot.active {
    width: 28px;
    border-radius: 4px;
    background: var(--color-accent);
}

.slider-arrows {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 10;
    pointer-events: none;
}

.slider-arrow {
    width: 52px;
    height: 52px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    pointer-events: all;
}

.slider-arrow:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.1);
}

/* Slider scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    z-index: 10;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
    animation: scrollDown 2s ease infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   MARKA GİRİŞ ALANI
   ============================================ */

.brand-intro {
    background: var(--color-off-white);
    padding: 80px 0;
}

.brand-intro-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.brand-intro-text .section-label {
    text-align: left;
}

.brand-intro-text h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    margin-bottom: 20px;
    text-align: left;
}

.brand-intro-text p {
    color: var(--color-text-light);
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 16px;
}

.brand-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-light);
    font-weight: 500;
}

.brand-intro-image {
    position: relative;
}

.brand-intro-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.brand-intro-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    opacity: 0.1;
    border-radius: var(--radius-lg);
    z-index: -1;
}

/* ============================================
   KATEGORİLER
   ============================================ */

.categories-section {
    padding: 80px 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.category-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    cursor: pointer;
    group: true;
}

.category-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.category-card:hover .category-card-image {
    transform: scale(1.08);
}

.category-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,26,46,0.85) 0%, rgba(26,26,46,0.2) 60%, transparent 100%);
    transition: var(--transition);
}

.category-card:hover .category-card-overlay {
    background: linear-gradient(to top, rgba(26,26,46,0.9) 0%, rgba(26,26,46,0.4) 60%, rgba(26,26,46,0.1) 100%);
}

.category-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    color: var(--color-white);
}

.category-card-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 8px;
    display: block;
}

.category-card-title {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-white);
}

.category-card-count {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
}

.category-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 1px;
    text-transform: uppercase;
    transform: translateY(10px);
    opacity: 0;
    transition: var(--transition);
}

.category-card:hover .category-card-link {
    transform: translateY(0);
    opacity: 1;
}

/* ============================================
   ÜRÜNLER
   ============================================ */

.products-section {
    background: var(--color-off-white);
    padding: 80px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-light-gray);
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.product-card-body {
    padding: 20px;
}

.product-category-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 8px;
    display: block;
}

.product-card-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.product-card-desc {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

.product-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.product-card-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.product-card-link:hover {
    color: var(--color-accent);
    gap: 10px;
}

.product-card-dims {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ============================================
   NEDEN BİMSAN
   ============================================ */

.why-bimsan {
    padding: 80px 0;
    background: var(--color-primary);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.why-bimsan::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201,169,110,0.08) 0%, transparent 70%);
}

.why-bimsan .section-title {
    color: var(--color-white);
}

.why-bimsan .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 56px;
}

.feature-card {
    padding: 36px 28px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(201,169,110,0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    line-height: 1.8;
}

/* ============================================
   KATALOG ALANI
   ============================================ */

.catalog-cta {
    padding: 80px 0;
    background: var(--color-off-white);
}

.catalog-cta-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.catalog-cta-text h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    margin-bottom: 16px;
}

.catalog-cta-text p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.catalog-preview {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.catalog-preview img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.catalog-preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(26,26,46,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.catalog-preview:hover .catalog-preview-overlay {
    opacity: 1;
}

/* ============================================
   KURUMSAL BANT
   ============================================ */

.corporate-band {
    background: var(--color-primary);
    padding: 60px 0;
    overflow: hidden;
}

.band-track {
    display: flex;
    gap: 60px;
    animation: bandScroll 20s linear infinite;
    white-space: nowrap;
}

.band-item {
    display: flex;
    align-items: center;
    gap: 16px;
    color: rgba(255,255,255,0.5);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    flex-shrink: 0;
}

.band-item i {
    color: var(--color-accent);
    font-size: 18px;
}

@keyframes bandScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   HABERLER
   ============================================ */

.news-section {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

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

.news-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-light-gray);
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-card-image img {
    transform: scale(1.05);
}

.news-card-body {
    padding: 24px;
}

.news-date {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-card-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card-title a:hover {
    color: var(--color-accent);
}

.news-card-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-read-more {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.news-read-more:hover {
    gap: 10px;
}

/* ============================================
   İLETİŞİM CTA
   ============================================ */

.contact-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2d2d44 100%);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.contact-cta h2 {
    font-size: clamp(28px, 4vw, 44px);
    color: var(--color-white);
    margin-bottom: 16px;
    position: relative;
}

.contact-cta p {
    font-size: 17px;
    color: rgba(255,255,255,0.75);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
    position: relative;
}

.contact-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    background: #111120;
    color: rgba(255,255,255,0.7);
}

.footer-main {
    padding: 72px 0 48px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
}

.footer-brand .site-logo {
    margin-bottom: 20px;
}

.footer-brand .logo-name {
    color: var(--color-white);
}

.footer-about {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
    color: rgba(255,255,255,0.6);
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.footer-social a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-3px);
}

.footer-col-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-links a::before {
    content: '›';
    color: var(--color-accent);
    font-size: 16px;
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 4px;
}

.footer-contact-item {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-contact-item i {
    color: var(--color-accent);
    font-size: 16px;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer-contact-item a {
    color: rgba(255,255,255,0.6);
}

.footer-contact-item a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
}

.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copyright {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--color-accent);
}

/* ============================================
   ÜRÜNLER SAYFASI
   ============================================ */

.page-hero {
    background: var(--color-primary);
    padding: 100px 0 60px;
    margin-top: calc(var(--header-height) + 40px);
    position: relative;
    overflow: hidden;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}

.page-hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    color: var(--color-white);
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    max-width: 600px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: rgba(255,255,255,0.5);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb span {
    color: var(--color-accent);
}

/* Filtre */
.products-filter {
    background: var(--color-white);
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: calc(var(--header-height) + 40px);
    z-index: 100;
}

.filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-light);
    background: var(--color-off-white);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   ÜRÜN DETAY SAYFASI
   ============================================ */

.product-detail {
    padding: 60px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + 60px);
}

.gallery-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
    background: var(--color-light-gray);
    aspect-ratio: 4/3;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
    transition: transform 0.5s ease;
}

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

.gallery-thumbs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.gallery-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.gallery-thumb.active {
    border-color: var(--color-accent);
}

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

.product-info-panel {
    padding: 8px 0;
}

.product-category-link {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
    display: block;
}

.product-detail-title {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

.product-short-desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
}

.product-dims {
    margin-bottom: 28px;
}

.product-dims h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dims-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.dim-option {
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.dim-option:hover,
.dim-option.active {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(201,169,110,0.08);
}

.product-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.product-meta-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
    background: var(--color-off-white);
    border-radius: var(--radius-md);
}

.product-meta-item {
    display: flex;
    gap: 12px;
    font-size: 14px;
}

.product-meta-item i {
    color: var(--color-accent);
    width: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

.product-meta-item strong {
    color: var(--color-text);
    margin-right: 4px;
}

/* Ürün Sekmeler */
.product-tabs {
    margin-top: 60px;
}

.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 32px;
    gap: 4px;
}

.tab-btn {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-light);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content p {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

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

.specs-table tr:nth-child(even) {
    background: var(--color-off-white);
}

.specs-table td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--color-border);
}

.specs-table td:first-child {
    font-weight: 600;
    color: var(--color-text);
    width: 40%;
}

.specs-table td:last-child {
    color: var(--color-text-light);
}

/* ============================================
   İLETİŞİM SAYFASI
   ============================================ */

.contact-page {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info-card {
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: var(--color-white);
    height: fit-content;
}

.contact-info-card h3 {
    font-size: 24px;
    color: var(--color-white);
    margin-bottom: 8px;
}

.contact-info-card > p {
    color: rgba(255,255,255,0.65);
    font-size: 14px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    background: rgba(201,169,110,0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 18px;
    flex-shrink: 0;
}

.contact-info-text strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.contact-info-text span,
.contact-info-text a {
    font-size: 15px;
    color: var(--color-white);
}

.contact-social {
    display: flex;
    gap: 10px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.contact-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    font-size: 16px;
    transition: var(--transition);
}

.contact-social a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

/* Form */
.contact-form-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-form-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.contact-form-card > p {
    color: var(--color-text-light);
    font-size: 14px;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-off-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-accent);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(201,169,110,0.12);
}

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

.map-container {
    margin-top: 48px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
    display: block;
}

/* ============================================
   KURUMSAL SAYFALAR
   ============================================ */

.corporate-page {
    padding: 60px 0;
}

.corporate-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    align-items: start;
}

.corporate-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 80px);
}

.sidebar-nav {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.sidebar-nav-title {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 16px 20px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.sidebar-nav-links {
    padding: 8px;
}

.sidebar-nav-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar-nav-links a:hover,
.sidebar-nav-links a.active {
    background: var(--color-off-white);
    color: var(--color-accent);
    padding-left: 20px;
}

.sidebar-nav-links a i {
    color: var(--color-accent);
    width: 16px;
    flex-shrink: 0;
}

.corporate-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.corporate-content h2 {
    font-size: 32px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.corporate-content p {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.corporate-content h3 {
    font-size: 22px;
    margin: 28px 0 12px;
    color: var(--color-primary);
}

.corporate-content ul {
    list-style: none;
    margin-bottom: 16px;
}

.corporate-content ul li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    font-size: 15px;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
}

.corporate-content ul li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 18px;
    line-height: 1.3;
}

/* ============================================
   KATALOG SAYFASI
   ============================================ */

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.catalog-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.catalog-card-image {
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-light-gray);
    position: relative;
}

.catalog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.catalog-card-body {
    padding: 20px;
}

.catalog-card-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.catalog-card-desc {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

/* ============================================
   HABERLER SAYFASI
   ============================================ */

.news-page-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.news-list-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.news-list-image {
    overflow: hidden;
}

.news-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-list-card:hover .news-list-image img {
    transform: scale(1.05);
}

.news-list-body {
    padding: 24px 24px 24px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Sidebar */
.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-widget {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.sidebar-widget-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

/* ============================================
   SAYFALAMA
   ============================================ */

.pagination-nav {
    margin-top: 48px;
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    gap: 6px;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.page-link:hover,
.page-link.active {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

/* ============================================
   ALERT / FLASH MESAJLAR
   ============================================ */

.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* ============================================
   WHATSAPP BUTONU
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 26px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ============================================
   SCROLL TO TOP
   ============================================ */

.scroll-top {
    position: fixed;
    bottom: 96px;
    right: 28px;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
    box-shadow: var(--shadow-md);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

/* ============================================
   ANİMASYONLAR
   ============================================ */

.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   MOBİL MENÜ
   ============================================ */

.mobile-nav {
    display: block;
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--color-primary);
    z-index: 2000;
    padding: 80px 24px 24px;
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-nav-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-nav-close:hover {
    background: var(--color-accent);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav-links a {
    display: block;
    padding: 14px 16px;
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-nav-links a:hover {
    background: rgba(255,255,255,0.08);
    color: var(--color-accent);
    padding-left: 20px;
}

.mobile-nav-links .sub-link {
    padding-left: 32px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

/* ============================================
   RESPONSİF TASARIM
   ============================================ */

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 992px) {
    :root {
        --header-height: 70px;
    }
    
    .main-nav {
        display: none;
    }
    
    .header-actions .header-catalog-btn {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-nav {
        display: block;
    }
    
    .hero-slider {
        margin-top: calc(var(--header-height) + 40px);
    }
    
    .slide-content .container {
        margin-left: 24px;
    }
    
    .brand-intro-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .categories-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .catalog-cta-inner {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .product-gallery {
        position: static;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .corporate-grid {
        grid-template-columns: 1fr;
    }
    
    .corporate-sidebar {
        position: static;
    }
    
    .news-page-grid {
        grid-template-columns: 1fr;
    }
    
    .news-list-card {
        grid-template-columns: 1fr;
    }
    
    .catalog-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .page-hero {
        margin-top: calc(var(--header-height) + 40px);
    }
    
    .products-filter {
        top: calc(var(--header-height) + 40px);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 56px 0;
    }
    
    .hero-slider {
        height: 70vh;
    }
    
    .slide-title {
        font-size: 28px;
    }
    
    .slide-desc {
        font-size: 15px;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .catalog-grid {
        grid-template-columns: 1fr;
    }
    
    .header-top {
        display: none;
    }
    
    .brand-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-stats {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .slide-actions {
        flex-direction: column;
    }
    
    .slider-arrows {
        display: none;
    }
}

/* ============================================
   YARDIMCI SINIFLAR
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* No image placeholder */
.no-image {
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-mid-gray) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 40px;
}


/* ============================================
   LIGHTBOX (ÜRÜN DETAY GALERISI)
   ============================================ */

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.lightbox-container {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    animation: lightbox-zoom-in 0.3s ease;
}

@keyframes lightbox-zoom-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    z-index: 2;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    color: var(--color-white);
    font-size: 14px;
}

.lightbox-prev,
.lightbox-next {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-counter {
    font-weight: 600;
    min-width: 60px;
    text-align: center;
}

/* Mobil uyumlu */
@media (max-width: 768px) {
    .lightbox-container {
        max-width: 95vw;
        max-height: 95vh;
    }

    .lightbox-img {
        max-height: 80vh;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 28px;
    }

    .lightbox-nav {
        gap: 12px;
        margin-top: 12px;
    }

    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .lightbox-counter {
        font-size: 12px;
    }
}