/* =====================================================
   Beijing Yuda Teng Sports Development Co., Ltd
   Main Stylesheet - Mercedes-Benz Inspired Design
   ===================================================== */

/* CSS Variables */
:root {
    /* Primary Colors - Mercedes Inspired */
    --color-primary: #000000;
    --color-secondary: #1a1a1a;
    --color-accent: #c8a962;
    --color-accent-light: #d4b87a;
    --color-accent-dark: #a68b4b;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Typography */
    --font-primary: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-secondary: 'Georgia', serif;
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-bold: 700;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-very-slow: 0.8s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --shadow-xl: 0 16px 32px rgba(0,0,0,0.25);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-normal);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: var(--font-bold);
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-md);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-gray-700);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-lg);
}

/* Section Styles */
.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

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

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--color-white);
}

.section-dark p {
    color: var(--color-gray-300);
}

/* Section Dark Cards - 确保卡片内容在深色背景上清晰可见 */
.section-dark .card h4,
.section-dark .card h5 {
    color: var(--color-primary);
}

.section-dark .card p {
    color: var(--color-gray-700);
}

.section-light {
    background-color: var(--color-gray-100);
}

.section-accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header .subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    position: relative;
}

.section-header .subtitle::before,
.section-header .subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background-color: var(--color-accent);
}

.section-header .subtitle::before {
    right: calc(100% + 15px);
}

.section-header .subtitle::after {
    left: calc(100% + 15px);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header .description {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: var(--color-gray-600);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-lg);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar-brand svg {
    height: 50px;
    width: auto;
}

.navbar-brand-text {
    font-size: 1.25rem;
    font-weight: var(--font-bold);
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.navbar-menu a {
    color: var(--color-white);
    font-size: 0.9375rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-sm) 0;
    position: relative;
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition-normal);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--color-accent);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.navbar-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition-normal);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--color-primary);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.9) 100%);
    z-index: 1;
}

.hero-background .pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, transparent 45%, rgba(200, 169, 98, 0.03) 45%, rgba(200, 169, 98, 0.03) 55%, transparent 55%),
        linear-gradient(-45deg, transparent 45%, rgba(200, 169, 98, 0.03) 45%, rgba(200, 169, 98, 0.03) 55%, transparent 55%);
    background-size: 60px 60px;
    animation: heroPatternMove 20s linear infinite;
}

@keyframes heroPatternMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-lg);
}

.hero-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: rgba(200, 169, 98, 0.1);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-xl);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero h1 .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-300);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    animation: bounce 2s infinite;
}

.hero-scroll svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-accent);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(200, 169, 98, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

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

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

.btn-dark:hover {
    background-color: var(--color-gray-800);
}

/* Cards */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-xl);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

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

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-lg);
}

.card-icon svg {
    width: 100%;
    height: 100%;
    fill: var(--color-accent);
}

.card h4 {
    margin-bottom: var(--space-md);
}

.card p {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Stats Section */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    padding: var(--space-3xl) 0;
}

.stat-item {
    text-align: center;
    padding: var(--space-xl);
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60%;
    background: linear-gradient(to bottom, transparent, var(--color-gray-400), transparent);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: var(--font-bold);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-600);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition-slow);
    border: 1px solid var(--color-gray-200);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    transform: scaleX(0);
    transition: var(--transition-normal);
}

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

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(200, 169, 98, 0.1), rgba(200, 169, 98, 0.2));
    border-radius: 50%;
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}

.service-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--color-accent);
    transition: var(--transition-normal);
}

.service-card:hover .service-icon svg {
    fill: var(--color-white);
}

.service-card h4 {
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* App Showcase */
.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.app-content h2 {
    margin-bottom: var(--space-lg);
}

.app-content .description {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

.app-features {
    display: grid;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.app-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.app-feature svg {
    width: 24px;
    height: 24px;
    fill: var(--color-accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.app-feature span {
    color: var(--color-gray-700);
}

.app-buttons {
    display: flex;
    gap: var(--space-md);
}

.app-button {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.app-button:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-2px);
}

.app-button svg {
    width: 28px;
    height: 28px;
    fill: var(--color-white);
}

.app-button-text {
    display: flex;
    flex-direction: column;
}

.app-button-text span:first-child {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.app-button-text span:last-child {
    font-size: 1rem;
    font-weight: var(--font-bold);
}

.app-preview {
    position: relative;
}

.app-preview-frame {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, var(--color-gray-800), var(--color-gray-900));
    border-radius: 40px;
    box-shadow: var(--shadow-xl);
}

.app-preview-screen {
    width: 100%;
    aspect-ratio: 9/19.5;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    position: relative;
    overflow: hidden;
}

.app-preview-screen::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 20px;
    background: var(--color-gray-900);
    border-radius: 10px;
}

.app-preview-screen .screen-content {
    text-align: center;
    padding-top: 30px;
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

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

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    position: relative;
    overflow: hidden;
}

.news-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.1);
    transition: var(--transition-normal);
}

.news-card:hover .news-image::before {
    background: rgba(0,0,0,0);
}

.news-image svg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    fill: rgba(255,255,255,0.3);
}

.news-content {
    padding: var(--space-lg);
}

.news-date {
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.news-title {
    font-size: 1.125rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-md);
    line-height: 1.4;
}

.news-title a {
    color: var(--color-primary);
}

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

.news-excerpt {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    color: var(--color-accent);
    margin-top: var(--space-md);
}

.news-link svg {
    width: 16px;
    height: 16px;
    fill: var(--color-accent);
    transition: var(--transition-normal);
}

.news-link:hover svg {
    transform: translateX(5px);
}

/* Culture Section */
.culture-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
}

.value-item {
    text-align: center;
    padding: var(--space-xl);
}

.value-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(200, 169, 98, 0.1), rgba(200, 169, 98, 0.2));
    border-radius: 50%;
    border: 2px solid var(--color-accent);
    transition: var(--transition-normal);
}

.value-item:hover .value-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}

.value-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--color-accent);
    transition: var(--transition-normal);
}

.value-item:hover .value-icon svg {
    fill: var(--color-white);
}

.value-item h4 {
    margin-bottom: var(--space-md);
}

.value-item p {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--space-3xl) auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-accent-dark));
}

.timeline-item {
    position: relative;
    padding: var(--space-xl) 0;
    display: flex;
    justify-content: flex-end;
    width: 50%;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    margin-left: 50%;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: var(--space-xl);
    width: 16px;
    height: 16px;
    background: var(--color-accent);
    border: 4px solid var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

.timeline-content {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    max-width: 350px;
    margin: 0 var(--space-xl);
    position: relative;
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: var(--font-bold);
    margin-bottom: var(--space-sm);
}

.timeline-description {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-info {
    padding: var(--space-2xl);
}

.contact-info h3 {
    margin-bottom: var(--space-lg);
}

.contact-info p {
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--color-white);
}

.contact-details h5 {
    margin-bottom: var(--space-xs);
    color: var(--color-primary);
}

.contact-details p {
    margin-bottom: 0;
    color: var(--color-gray-600);
}

.contact-form {
    background-color: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-700);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    border: 1px solid var(--color-gray-300);
    background-color: var(--color-gray-100);
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: var(--color-white);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.footer-brand svg {
    height: 60px;
    width: auto;
}

.footer-brand-text {
    font-size: 1.25rem;
    font-weight: var(--font-bold);
    letter-spacing: 0.05em;
}

.footer-description {
    color: var(--color-gray-400);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: var(--transition-normal);
}

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

.footer-social svg {
    width: 20px;
    height: 20px;
    fill: var(--color-white);
}

.footer-column h5 {
    color: var(--color-white);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright {
    color: var(--color-gray-400);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: var(--color-gray-400);
    font-size: 0.875rem;
}

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

/* Page Header */
.page-header {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, transparent 45%, rgba(200, 169, 98, 0.03) 45%, rgba(200, 169, 98, 0.03) 55%, transparent 55%),
        linear-gradient(-45deg, transparent 45%, rgba(200, 169, 98, 0.03) 45%, rgba(200, 169, 98, 0.03) 55%, transparent 55%);
    background-size: 60px 60px;
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    list-style: none;
}

.breadcrumb li {
    color: var(--color-gray-400);
    font-size: 0.875rem;
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: var(--space-sm);
    color: var(--color-gray-500);
}

.breadcrumb a {
    color: var(--color-gray-400);
}

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

/* Legal Pages */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-lg);
}

.legal-content h2 {
    font-size: 1.75rem;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.legal-content h3 {
    font-size: 1.375rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.legal-content h4 {
    font-size: 1.125rem;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
}

.legal-content p {
    margin-bottom: var(--space-md);
    line-height: 1.9;
}

.legal-content ul,
.legal-content ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.legal-content li {
    margin-bottom: var(--space-sm);
    color: var(--color-gray-700);
    line-height: 1.8;
}

.legal-content strong {
    color: var(--color-primary);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    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(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }
.mb-6 { margin-bottom: var(--space-2xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }
.mt-6 { margin-top: var(--space-2xl); }

.py-4 { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
.py-5 { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
.py-6 { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }

/* Privacy Specific Styles */
.ad-platforms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.ad-platform-item {
    background: var(--color-gray-100);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.ad-platform-item strong {
    color: var(--color-accent);
}

.ad-formats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.ad-format-item {
    background: linear-gradient(135deg, var(--color-gray-100), var(--color-white));
    padding: var(--space-lg);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
}

.ad-format-item h5 {
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.ad-format-item p {
    margin-bottom: 0;
    font-size: 0.9375rem;
}

.compliance-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.compliance-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.compliance-badge svg {
    width: 20px;
    height: 20px;
    fill: var(--color-accent);
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    margin: var(--space-lg) 0;
}

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

th, td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

th {
    background: var(--color-gray-100);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

tr:hover {
    background: var(--color-gray-100);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-logo {
    text-align: center;
}

.loading-logo svg {
    height: 80px;
    width: auto;
    animation: pulse 1.5s ease-in-out infinite;
}

.loading-text {
    color: var(--color-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    margin-top: var(--space-lg);
    animation: loadingText 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.98); }
}

@keyframes loadingText {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    background: var(--color-accent-dark);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    fill: var(--color-white);
}