/* ============================
   Design Tokens & Variables
   ============================ */
:root {
    /* Primary Purple Palette */
    --purple-50: #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-300: #d8b4fe;
    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-700: #7c3aed;
    --purple-800: #6b21a8;
    --purple-900: #581c87;

    /* Neutral Palette */
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;

    /* Semantic */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafe;
    --bg-card: #ffffff;
    --text-primary: #171717;
    --text-secondary: #525252;
    --text-tertiary: #737373;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #A855F7 50%, #C084FC 100%);
    --gradient-hero: linear-gradient(180deg, #faf5ff 0%, #ffffff 40%, #fafafe 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #faf5ff 100%);
    --gradient-cta: linear-gradient(135deg, #7c3aed 0%, #9333ea 50%, #a855f7 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-purple: 0 8px 32px rgba(139, 92, 246, 0.25);
    --shadow-card: 0 4px 24px rgba(139, 92, 246, 0.08);

    /* Layout */
    --max-width: 1200px;
    --nav-height: 72px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

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

/* ============================
   Navigation
   ============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
}

.logo-icon {
    display: flex;
    align-items: center;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width 0.3s var(--ease-out);
}

.nav-link:hover {
    color: var(--purple-600);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-nav-login {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-nav-login:hover {
    color: var(--purple-600);
    background: var(--purple-50);
}

.btn-nav-signup {
    font-size: 14px;
    font-weight: 600;
    color: white;
    padding: 8px 20px;
    border-radius: 8px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.btn-nav-signup:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.3s var(--ease-out);
}

.mobile-menu.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
}

.mobile-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.btn-mobile-signup {
    text-align: center;
    color: white !important;
    background: var(--gradient-primary);
    border-radius: 10px;
    padding: 14px !important;
    border: none !important;
    font-weight: 600 !important;
}

/* ============================
   Hero Section
   ============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 0;
    background: var(--gradient-hero);
    overflow: hidden;
}

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

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}

.hero-glow-1 {
    width: 600px;
    height: 600px;
    background: var(--purple-200);
    top: -200px;
    right: -100px;
    animation: pulseGlow 8s ease-in-out infinite;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: var(--purple-300);
    bottom: -100px;
    left: -100px;
    animation: pulseGlow 10s ease-in-out infinite 2s;
}

.hero-glow-3 {
    width: 300px;
    height: 300px;
    background: var(--purple-100);
    top: 40%;
    left: 30%;
    animation: pulseGlow 12s ease-in-out infinite 4s;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.2); opacity: 0.6; }
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px 6px 10px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(168, 85, 247, 0.05));
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--purple-700);
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s var(--ease-out) 0.2s forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--purple-500);
    border-radius: 50%;
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s var(--ease-out) 0.4s forwards;
}

.title-line {
    display: block;
}

.title-line:first-child {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s var(--ease-out) 0.6s forwards;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 14px;
    background: white;
    border-radius: 100px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    font-size: 16px;
}

.hero-desc {
    font-size: 15px;
    color: var(--text-tertiary);
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s var(--ease-out) 0.7s forwards;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s var(--ease-out) 0.8s forwards;
}

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

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient-cta);
    color: white;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    box-shadow: var(--shadow-purple);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: white;
    color: var(--purple-700);
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    border: 2px solid var(--purple-200);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.btn-secondary:hover {
    border-color: var(--purple-400);
    background: var(--purple-50);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeIn 1s var(--ease-out) 0.5s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.hero-image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 320px;
    height: 320px;
    object-fit: contain;
    animation: floatSlow 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 60px rgba(139, 92, 246, 0.3));
}

.hero-image-glow {
    position: absolute;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2), transparent 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(3deg); }
}

/* Floating Cards */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 14px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.card-emoji {
    font-size: 24px;
}

.card-title {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.card-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-1 {
    top: 15%;
    right: 0;
    animation: floatCard 5s ease-in-out infinite;
}

.card-2 {
    bottom: 20%;
    left: -10%;
    animation: floatCard 6s ease-in-out infinite 1s;
}

.card-3 {
    bottom: 5%;
    right: 5%;
    animation: floatCard 7s ease-in-out infinite 2s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ============================
   Section Common Styles
   ============================ */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 100px 24px;
}

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

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-tertiary);
    max-width: 500px;
    margin: 0 auto;
}

.section-cta {
    text-align: center;
    margin-top: 48px;
}

/* ============================
   Models Section
   ============================ */
.models-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.models-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--purple-200), transparent);
}

.models-label {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    justify-content: center;
}

.label-line {
    flex: 1;
    max-width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--purple-300));
}

.label-line:last-child {
    background: linear-gradient(90deg, var(--purple-300), transparent);
}

.label-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--purple-600);
    letter-spacing: 0.05em;
}

.models-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
    padding: 32px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 24px;
    border: 1px solid rgba(139, 92, 246, 0.1);
    box-shadow: var(--shadow-card);
}

.model-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--gray-200);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.model-icon::after {
    content: attr(data-name);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    white-space: nowrap;
    color: var(--text-secondary);
    opacity: 0;
    transition: all 0.3s ease;
    background: white;
    padding: 2px 8px;
    border-radius: 4px;
    box-shadow: var(--shadow-md);
}

.model-icon:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: var(--purple-300);
    box-shadow: var(--shadow-purple);
}

.model-icon:hover::after {
    bottom: -36px;
    opacity: 1;
}

.model-icon svg {
    width: 36px;
    height: 36px;
}

.model-more {
    background: var(--purple-50);
    border-color: var(--purple-200);
    font-size: 16px;
    font-weight: 700;
    color: var(--purple-600);
}

/* ============================
   Advantages Section
   ============================ */
.advantages-section {
    background: var(--bg-primary);
    position: relative;
}

.advantages-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.advantage-card {
    padding: 36px;
    background: var(--gradient-card);
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.1);
    transition: all 0.4s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out);
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--purple-200);
}

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

.adv-icon {
    margin-bottom: 20px;
}

.adv-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--purple-700);
    margin-bottom: 12px;
    line-height: 1.4;
}

.adv-list li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 16px;
    position: relative;
}

.adv-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--purple-400);
}

/* ============================
   Audience Section
   ============================ */
.audience-section {
    background: var(--bg-secondary);
    position: relative;
}

.audience-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--purple-200), transparent);
}

.audience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.audience-card {
    padding: 48px 36px;
    background: white;
    border-radius: 24px;
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: all 0.4s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.audience-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.02), rgba(139, 92, 246, 0.06));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.audience-card:hover {
    transform: translateY(-6px);
    border-color: var(--purple-300);
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.12);
}

.audience-card:hover::after {
    opacity: 1;
}

.audience-icon {
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.audience-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.audience-desc {
    font-size: 14px;
    color: var(--text-tertiary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* ============================
   CTA Section
   ============================ */
.cta-section {
    position: relative;
    background: linear-gradient(180deg, var(--bg-secondary), var(--purple-50));
    overflow: hidden;
}

.cta-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.cta-glow-1 {
    width: 400px;
    height: 400px;
    background: rgba(139, 92, 246, 0.15);
    top: -100px;
    left: 20%;
    animation: pulseGlow 8s ease-in-out infinite;
}

.cta-glow-2 {
    width: 300px;
    height: 300px;
    background: rgba(168, 85, 247, 0.1);
    bottom: -50px;
    right: 25%;
    animation: pulseGlow 10s ease-in-out infinite 3s;
}

.cta-section .section-container {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 80px 24px;
}

.cta-title {
    font-size: 40px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 16px;
    color: var(--text-tertiary);
    margin-bottom: 40px;
}

.cta-actions {
    margin-bottom: 32px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 48px;
    background: var(--gradient-cta);
    color: white;
    font-size: 18px;
    font-weight: 700;
    border-radius: 14px;
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    box-shadow: var(--shadow-purple);
    position: relative;
    overflow: hidden;
}

.btn-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 48px rgba(139, 92, 246, 0.4);
}

.btn-cta:hover::before {
    opacity: 1;
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.trust-item {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* ============================
   Footer
   ============================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px 32px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    font-size: 20px;
    font-weight: 700;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-500);
}

.footer-links-group h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-200);
    margin-bottom: 20px;
}

.footer-links-group a {
    display: block;
    font-size: 14px;
    color: var(--gray-500);
    padding: 6px 0;
    transition: all 0.2s ease;
}

.footer-links-group a:hover {
    color: var(--purple-400);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: var(--gray-600);
}

/* ============================
   Scroll Reveal Animations
   ============================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================
   Responsive Design
   ============================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-image-wrapper {
        width: 300px;
        height: 300px;
    }

    .hero-image {
        width: 240px;
        height: 240px;
    }

    .floating-card {
        display: none;
    }

    .advantages-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .audience-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-trust {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-image-wrapper {
        width: 240px;
        height: 240px;
    }

    .hero-image {
        width: 200px;
        height: 200px;
    }

    .stat-item {
        font-size: 13px;
        padding: 5px 10px;
    }

    .section-container {
        padding: 60px 20px;
    }

    .models-grid {
        padding: 20px;
        gap: 14px;
    }

    .model-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
    }

    .model-icon svg {
        width: 28px;
        height: 28px;
    }

    .advantage-card {
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-badge {
        font-size: 12px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 24px;
        font-size: 14px;
    }

    .btn-cta {
        padding: 14px 36px;
        font-size: 16px;
    }
}

/* ============================
   Reservation Modal
   ============================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
}

.modal-container {
    background: var(--bg-card);
    width: 90%;
    max-width: 480px;
    border-radius: 20px;
    padding: 40px;
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s var(--ease-out);
}

.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--gray-400);
    cursor: pointer;
    transition: color 0.2s ease;
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-800);
}

.modal-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-align: center;
}

.modal-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 30px;
    text-align: center;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group .required {
    color: #ef4444;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.2s ease;
    background: var(--bg-secondary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--purple-400);
    background: white;
    box-shadow: 0 0 0 4px var(--purple-50);
}

.modal-submit {
    width: 100%;
    justify-content: center;
    margin-top: 10px;
}

.form-success {
    margin-top: 20px;
    padding: 12px;
    background: #ecfdf5;
    color: #059669;
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}

.form-error {
    margin-top: 20px;
    padding: 12px;
    background: #fef2f2;
    color: #dc2626;
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}