/* ============================================
   BOYA FABRİKASI - Premium Web Design
   Modern, Interactive, Colorful
   ============================================ */

/* CSS Variables */
:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #f093fb;
    --accent: #764ba2;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --dark: #1a1a2e;
    --darker: #16162a;
    --light: #ffffff;
    --gray-100: #f7f7f7;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-600: #737373;
    --gray-800: #262626;
    --text: #333333;
    --text-light: #666666;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 25px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --transition-smooth: all 0.3s ease;
}

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

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

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--light);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--light);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-1);
    border-radius: 5px;
}

/* ============================================
   PRELOADER
   ============================================ */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.paint-drop {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    animation: drop 1.5s ease-in-out infinite;
}

@keyframes drop {
    0%, 100% { transform: rotate(-45deg) scale(1); }
    50% { transform: rotate(-45deg) scale(1.2); }
}

.preloader span {
    color: var(--light);
    margin-top: 20px;
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================================
   PARTICLES
   ============================================ */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    animation: float 15s infinite ease-in-out;
    opacity: 0.6;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-30px) rotate(90deg); }
    50% { transform: translateY(-15px) rotate(180deg); }
    75% { transform: translateY(-40px) rotate(270deg); }
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    padding: 15px 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.logo-icon .drop {
    width: 20px;
    height: 20px;
    background: var(--light);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -1px;
}

.navbar:not(.scrolled) .logo-text {
    color: var(--light);
}

.logo-text .accent {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 5px 0;
    transition: var(--transition-smooth);
}

.navbar:not(.scrolled) .nav-links a {
    color: var(--light);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition-smooth);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition-smooth);
}

.navbar:not(.scrolled) .hamburger span {
    background: var(--light);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    background: var(--dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.color-wave {
    position: absolute;
    width: 200%;
    height: 200%;
    border-radius: 40%;
    animation: wave 20s linear infinite;
}

.wave1 {
    background: rgba(102, 126, 234, 0.3);
    top: -50%;
    left: -50%;
    animation-duration: 25s;
}

.wave2 {
    background: rgba(118, 75, 162, 0.2);
    top: -60%;
    left: -60%;
    animation-duration: 30s;
    animation-direction: reverse;
}

.wave3 {
    background: rgba(240, 147, 251, 0.15);
    top: -70%;
    left: -70%;
    animation-duration: 35s;
}

@keyframes wave {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-text {
    color: var(--light);
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 25px;
    letter-spacing: -2px;
}

.gradient-text {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--light);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--light);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 50px;
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 800;
    background: var(--gradient-4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.paint-bucket {
    position: relative;
    width: 350px;
    height: 400px;
}

.bucket-body {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 250px;
    background: linear-gradient(180deg, #e0e0e0 0%, #b0b0b0 100%);
    border-radius: 0 0 30px 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.bucket-body::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -10px;
    right: -10px;
    height: 40px;
    background: linear-gradient(180deg, #f0f0f0 0%, #d0d0d0 100%);
    border-radius: 10px 10px 0 0;
}

.paint-flow {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 200px;
    background: var(--gradient-1);
    border-radius: 40px 40px 60px 60px;
    animation: flow 3s ease-in-out infinite;
}

@keyframes flow {
    0%, 100% { height: 200px; opacity: 1; }
    50% { height: 220px; opacity: 0.9; }
}

.color-splash {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 150px;
    background: var(--gradient-1);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.6;
    animation: splash 4s ease-in-out infinite;
}

@keyframes splash {
    0%, 100% { transform: translateX(-50%) scale(1); }
    50% { transform: translateX(-50%) scale(1.1); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 10;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--light);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(15px); }
}

.scroll-indicator span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================================
   CONTAINER & SECTION STYLES
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.left {
    text-align: left;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -1px;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--gray-100);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-card {
    background: var(--light);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--light);
}

.about-card:nth-child(2) .card-icon {
    background: var(--gradient-2);
}

.about-card:nth-child(3) .card-icon {
    background: var(--gradient-3);
}

.about-card:nth-child(4) .card-icon {
    background: var(--gradient-4);
}

.about-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.about-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

/* ============================================
   CATALOGS SECTION
   ============================================ */
.catalogs {
    background: var(--light);
    overflow: hidden;
}

.catalog-showcase {
    position: relative;
}

.catalog-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.catalog-card {
    perspective: 1000px;
    cursor: pointer;
}

.catalog-cover {
    position: relative;
    height: 350px;
    border-radius: 20px;
    overflow: hidden;
    transform-style: preserve-3d;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.catalog-card:hover .catalog-cover {
    transform: rotateY(-10deg) rotateX(5deg) scale(1.02);
    box-shadow: 30px 30px 60px rgba(0, 0, 0, 0.2);
}

.cover-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cover-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--light);
    padding: 30px;
    text-align: center;
    z-index: 2;
}

.cover-content i {
    font-size: 50px;
    margin-bottom: 25px;
    opacity: 0.9;
}

.cover-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}

.catalog-pages {
    font-size: 14px;
    opacity: 0.8;
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
}

.cover-hover {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 25px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--light);
    font-weight: 600;
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.catalog-card:hover .cover-hover {
    transform: translateY(0);
}

/* ============================================
   CATALOG MODAL
   ============================================ */
.catalog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.catalog-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--light);
    border-radius: 30px;
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition);
}

.catalog-modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--dark);
    border: none;
    border-radius: 50%;
    color: var(--light);
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    background: var(--primary);
    transform: rotate(90deg);
}

.catalog-viewer {
    padding: 40px;
}

.catalog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.catalog-header h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
}

.page-indicator {
    padding: 10px 25px;
    background: var(--gray-100);
    border-radius: 50px;
    font-weight: 600;
    color: var(--dark);
}

.catalog-slides {
    position: relative;
    height: 500px;
    background: var(--gray-100);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 25px;
}

.catalog-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

.catalog-slide.active {
    opacity: 1;
}

.slide-content {
    text-align: center;
    padding: 40px;
}

.slide-content h4 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.slide-content p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 30px;
}

.slide-colors {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.slide-color {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.slide-color:hover {
    transform: scale(1.1) rotate(5deg);
}

.catalog-navigation {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.nav-btn {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border: none;
    border-radius: 50%;
    color: var(--light);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.nav-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.thumbnail-strip {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px 0;
    flex: 1;
    scrollbar-width: none;
}

.thumbnail-strip::-webkit-scrollbar {
    display: none;
}

.thumbnail {
    width: 80px;
    height: 60px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-smooth);
    opacity: 0.5;
    flex-shrink: 0;
}

.thumbnail.active {
    opacity: 1;
    box-shadow: 0 0 0 3px var(--primary);
}

.thumbnail:hover {
    opacity: 0.8;
}

.catalog-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.action-btn {
    padding: 12px 25px;
    background: var(--gray-100);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 8px;
}

.action-btn:hover {
    background: var(--gradient-1);
    color: var(--light);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    background: var(--gray-100);
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 28px;
    background: var(--light);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-1);
    color: var(--light);
    transform: translateY(-2px);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--light);
    border-radius: 25px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-card.hidden {
    display: none;
}

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-color {
    width: 100%;
    height: 100%;
    transition: var(--transition);
}

.product-card:hover .product-color {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 6px 15px;
    background: var(--primary);
    color: var(--light);
    font-size: 11px;
    font-weight: 700;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-badge.bestseller {
    background: var(--gradient-4);
}

.product-badge.special {
    background: var(--gradient-2);
}

.product-info {
    padding: 25px;
}

.product-info h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.product-info p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
}

.product-features {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.product-features span {
    font-size: 12px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ============================================
   COLORS SECTION
   ============================================ */
.colors {
    background: var(--light);
}

.color-explorer {
    background: var(--gray-100);
    border-radius: 30px;
    padding: 40px;
}

.color-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.color-cat-btn {
    padding: 12px 28px;
    background: var(--light);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
}

.color-cat-btn:hover,
.color-cat-btn.active {
    background: var(--gradient-1);
    color: var(--light);
}

.color-palette-display {
    margin-bottom: 30px;
}

.color-swatch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 10px;
}

.color-swatch {
    aspect-ratio: 1;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.color-swatch:hover {
    transform: scale(1.15) rotate(5deg);
    z-index: 10;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.color-swatch.selected {
    box-shadow: 0 0 0 4px var(--dark), 0 10px 30px rgba(0, 0, 0, 0.3);
}

.selected-color-info {
    display: flex;
    align-items: center;
    gap: 30px;
    background: var(--light);
    padding: 25px;
    border-radius: 20px;
}

#colorPreview {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    background: var(--gray-200);
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.color-details h4 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.color-details p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 15px;
    font-family: monospace;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--dark);
    color: var(--light);
}

.contact .section-badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--light);
}

.contact .section-header h2 {
    color: var(--light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.info-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    transition: var(--transition-smooth);
}

.info-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(10px);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.info-content p {
    font-size: 15px;
    opacity: 0.8;
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    font-size: 20px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--gradient-1);
    transform: translateY(-5px);
}

/* Contact Form */
.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    color: var(--light);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition-smooth);
    outline: none;
}

.form-group textarea {
    resize: none;
}

.form-group select option {
    background: var(--dark);
    color: var(--light);
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.form-group textarea + label {
    top: 20px;
    transform: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label,
.form-group select:focus + label,
.form-group select:valid + label {
    top: -10px;
    left: 15px;
    font-size: 12px;
    background: var(--dark);
    padding: 0 8px;
    color: var(--primary);
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition-smooth);
}

.form-group input:focus ~ .focus-border,
.form-group textarea:focus ~ .focus-border {
    width: 100%;
    left: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--darker);
    color: var(--light);
    padding-top: 0;
    position: relative;
}

.footer-wave {
    margin-top: -1px;
}

.footer-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

.footer-wave path {
    fill: var(--darker);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    padding: 60px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    margin-bottom: 20px;
}

.footer-logo .logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--light);
}

.footer-col p {
    opacity: 0.7;
    line-height: 1.8;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 3px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.footer-col ul a:hover {
    color: var(--light);
    transform: translateX(5px);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 25px 0;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: 14px;
}

.footer-legal {
    display: flex;
    gap: 30px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-smooth);
}

.footer-legal a:hover {
    color: var(--light);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 56px;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .catalog-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: var(--transition-smooth);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        color: var(--light) !important;
        font-size: 24px;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .nav-container {
        padding: 0 20px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    section {
        padding: 80px 0;
    }
    
    .hero h1 {
        font-size: 42px;
    }
    
    .section-header h2 {
        font-size: 36px;
    }
    
    .about-grid,
    .catalog-cards,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 25px;
    }
    
    .stat {
        text-align: center;
    }
    
    .catalog-slides {
        height: 400px;
    }
    
    .catalog-viewer {
        padding: 20px;
    }
    
    .modal-content {
        width: 95%;
        border-radius: 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-col p {
        margin: 0 auto;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .selected-color-info {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .products-filter {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .color-categories {
        gap: 10px;
    }
    
    .color-cat-btn {
        padding: 10px 18px;
        font-size: 12px;
    }
    
    .catalog-actions {
        flex-direction: column;
    }
    
    .action-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================
   CATALOG: cards + expandable color panels
   ============================================ */
.catalog-card {
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    text-align: left;
    font: inherit;
    position: relative;
    transition: transform 0.35s cubic-bezier(.2,.9,.3,1);
}
.catalog-card.active { transform: translateY(-10px) scale(1.02); z-index: 2; }
.catalog-card.active .catalog-cover { box-shadow: 0 25px 60px rgba(0,0,0,0.25); }
.catalog-card.active::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -22px;
    transform: translateX(-50%) rotate(45deg);
    width: 28px; height: 28px;
    background: linear-gradient(135deg, var(--card-g1, #667eea), var(--card-g2, #764ba2));
    border-radius: 6px;
    z-index: 3;
}

.catalog-card[data-target="cat-ozel"]        { --card-g1:#a18cd1; --card-g2:#fbc2eb; }
.catalog-card[data-target="cat-ic-cephe"]    { --card-g1:#667eea; --card-g2:#764ba2; }
.catalog-card[data-target="cat-dis-cephe"]   { --card-g1:#f093fb; --card-g2:#f5576c; }
.catalog-card[data-target="cat-astar"]       { --card-g1:#30cfd0; --card-g2:#330867; }
.catalog-card[data-target="cat-astar-grubu"] { --card-g1:#4facfe; --card-g2:#00f2fe; }
.catalog-card[data-target="cat-dekoratif"]   { --card-g1:#43e97b; --card-g2:#38f9d7; }
.catalog-card[data-target="cat-sentetik"]    { --card-g1:#fa709a; --card-g2:#fee140; }
.catalog-card[data-target="cat-vernik"]      { --card-g1:#d4a373; --card-g2:#6b4423; }
.catalog-card[data-target="cat-endustriyel"] { --card-g1:#434343; --card-g2:#1a1a1a; }

.catalog-list { margin-top: 60px; position: relative; }

.catalog-group {
    --g1: #667eea;
    --g2: #764ba2;
    display: none;
    position: relative;
    border-radius: 28px;
    padding: 0;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.12);
    scroll-margin-top: 100px;
    animation: catalogPanelIn 0.45s cubic-bezier(.2,.9,.3,1);
}
.catalog-group.open { display: block; }

@keyframes catalogPanelIn {
    from { opacity: 0; transform: translateY(-12px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

#cat-ozel        { --g1:#a18cd1; --g2:#fbc2eb; }
#cat-ic-cephe    { --g1:#667eea; --g2:#764ba2; }
#cat-dis-cephe   { --g1:#f093fb; --g2:#f5576c; }
#cat-astar       { --g1:#30cfd0; --g2:#330867; }
#cat-astar-grubu { --g1:#4facfe; --g2:#00f2fe; }
#cat-dekoratif   { --g1:#43e97b; --g2:#38f9d7; }
#cat-sentetik    { --g1:#fa709a; --g2:#fee140; }
#cat-vernik      { --g1:#d4a373; --g2:#6b4423; }
#cat-endustriyel { --g1:#434343; --g2:#1a1a1a; }

.catalog-group-title {
    margin: 0;
    padding: 38px 45px;
    background: linear-gradient(135deg, var(--g1) 0%, var(--g2) 100%);
    color: #fff;
    font-size: 1.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
    border: none;
}
.catalog-group-title::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 90% 20%, rgba(255,255,255,0.25), transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(255,255,255,0.18), transparent 45%);
    pointer-events: none;
}
.catalog-group-title i {
    width: 60px; height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(10px);
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    color: #fff;
    font-size: 1.7rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}
.catalog-group-title span {
    font-size: 1rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    font-style: italic;
    margin-left: auto;
    position: relative;
    z-index: 1;
}

.catalog-products {
    list-style: none;
    padding: 35px;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 16px;
    background:
      radial-gradient(circle at 0% 0%, color-mix(in srgb, var(--g1) 8%, transparent), transparent 50%),
      radial-gradient(circle at 100% 100%, color-mix(in srgb, var(--g2) 8%, transparent), transparent 50%),
      #fff;
}

.catalog-products li {
    position: relative;
    padding: 18px 20px 18px 70px;
    background: #fff;
    border-radius: 16px;
    border: 1.5px solid color-mix(in srgb, var(--g1) 15%, #eee);
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: all 0.3s cubic-bezier(.2,.9,.3,1);
    overflow: hidden;
}
.catalog-products li::before {
    content: '';
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--g1) 0%, var(--g2) 100%);
    box-shadow:
      0 4px 12px color-mix(in srgb, var(--g1) 40%, transparent),
      inset -3px -3px 8px rgba(0, 0, 0, 0.15),
      inset 3px 3px 8px rgba(255, 255, 255, 0.4);
    transition: transform 0.35s cubic-bezier(.2,.9,.3,1);
}
.catalog-products li:hover {
    transform: translateY(-4px);
    border-color: var(--g1);
    box-shadow: 0 12px 28px color-mix(in srgb, var(--g1) 25%, transparent);
}
.catalog-products li:hover::before {
    transform: translateY(-50%) scale(1.15) rotate(15deg);
}

.catalog-products li strong {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    line-height: 1.35;
}
.catalog-products li span {
    font-size: 0.82rem;
    color: #888;
    font-style: italic;
    line-height: 1.3;
}

.catalog-cards { row-gap: 50px; }

@media (max-width: 768px) {
    .catalog-group-title { padding: 26px 22px; font-size: 1.2rem; }
    .catalog-group-title i { width: 48px; height: 48px; font-size: 1.3rem; }
    .catalog-group-title span { width: 100%; margin-left: 0; }
    .catalog-products { padding: 20px; grid-template-columns: 1fr; }
}

/* ============================================
   LOGO IMAGE + WHATSAPP
   ============================================ */
.logo { padding: 6px 0; }
.logo .logo-img {
    height: 78px;
    width: auto;
    max-width: 260px;
    display: block;
    object-fit: contain;
}
.footer-logo .logo-img {
    height: 90px;
    width: auto;
    max-width: 280px;
    display: block;
    object-fit: contain;
    background: #fff;
    padding: 10px 18px;
    border-radius: 12px;
}
.navbar { min-height: 90px; }
.navbar.scrolled .logo .logo-img { height: 64px; }

@media (max-width: 768px) {
    .logo .logo-img { height: 56px; max-width: 180px; }
    .footer-logo .logo-img { height: 70px; max-width: 220px; }
    .navbar { min-height: 72px; }
}

.contact-name {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.3px;
}
.info-card a { color: inherit; text-decoration: none; transition: color 0.2s; }
.info-card a:hover { color: var(--primary); }

.info-icon.whatsapp-icon {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%) !important;
    color: #fff !important;
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
}

.whatsapp-float {
    position: fixed;
    right: 28px;
    bottom: 28px;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5), 0 4px 10px rgba(0,0,0,0.15);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(.2,.9,.3,1), box-shadow 0.3s ease;
    animation: whatsappPulse 2.4s infinite;
}
.whatsapp-float:hover {
    transform: scale(1.1) rotate(-8deg);
    box-shadow: 0 18px 40px rgba(37, 211, 102, 0.65), 0 6px 14px rgba(0,0,0,0.2);
}
.whatsapp-float .whatsapp-tooltip {
    position: absolute;
    right: 76px;
    background: #1a1a1a;
    color: #fff;
    padding: 9px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.whatsapp-float .whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: #1a1a1a;
}
.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5), 0 4px 10px rgba(0,0,0,0.15), 0 0 0 0 rgba(37, 211, 102, 0.5); }
    50%      { box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5), 0 4px 10px rgba(0,0,0,0.15), 0 0 0 18px rgba(37, 211, 102, 0); }
}

@media (max-width: 768px) {
    .whatsapp-float { width: 54px; height: 54px; font-size: 28px; right: 18px; bottom: 18px; }
    .whatsapp-float .whatsapp-tooltip { display: none; }
}