/* ============================================
   Xhea AI Platform - Main Stylesheet
   Version: 1.0
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Tech Theme */
    --bg-primary: #050508;
    --bg-secondary: #0a0a12;
    --bg-tertiary: #12121c;
    --bg-card: #0f0f18;
    --bg-hover: #1a1a28;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a8b8;
    --text-muted: #5a6070;
    --text-disabled: #404050;
    
    /* Tech Accent Colors */
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-tertiary: #ff006e;
    --accent-info: #00f5d4;
    --accent-warning: #ffb800;
    
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --accent-gradient-subtle: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(0, 212, 255, 0.3);
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-elevated: 0 10px 40px rgba(0, 0, 0, 0.4);
    
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index Scale */
    --z-background: -1;
    --z-default: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-header: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}

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

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

a:hover {
    color: var(--text-primary);
}

ul, ol {
    list-style: none;
}

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

input, textarea, select, button {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Background Canvas
   ============================================ */

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    opacity: 0.5;
    pointer-events: none;
}

/* ============================================
   Header & Navigation
   ============================================ */

.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5rem;
    background: rgba(5, 5, 8, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.glass-header.scrolled {
    padding: 0.75rem 5rem;
    background: rgba(5, 5, 8, 0.95);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav {
    display: flex;
    gap: 2.5rem;
}

nav a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

nav a:hover,
nav a.active {
    color: var(--text-primary);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

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

.hero-full {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero-full::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 900px;
    z-index: var(--z-default);
    position: relative;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: var(--font-mono);
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(0, 212, 255, 0); }
}

.glitch-text {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    position: relative;
    animation: glitch 4s infinite;
}

@keyframes glitch {
    0%, 100%, 92%, 94%, 96% { text-shadow: none; }
    93% { text-shadow: 2px 0 var(--accent-tertiary), -2px 0 var(--accent-info); }
    95% { text-shadow: -2px 0 var(--accent-tertiary), 2px 0 var(--accent-info); }
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

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

.btn-primary,
.btn-secondary,
.btn-outline,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

/* ============================================
   Stats Section
   ============================================ */

.stats-section {
    padding: 5rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   Section Headers
   ============================================ */

.content-section,
.featured-section,
.data-viz-section,
.compare-section,
.cta-section {
    padding: 6rem 5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

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

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
}

.section-header.center p {
    margin: 0 auto;
}

/* ============================================
   Bento Grid & Cards
   ============================================ */

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

.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.bento-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-glow);
}

.bento-card:hover::before {
    opacity: 1;
}

.bento-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-card.wide {
    grid-column: span 2;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    opacity: 0.9;
}

.bento-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.bento-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.card-link {
    color: var(--accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap var(--transition-normal);
}

.card-link:hover {
    gap: 0.75rem;
    color: var(--accent-primary);
}

/* Category Tags */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.category-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ============================================
   Featured Models Carousel
   ============================================ */

.featured-section {
    background: var(--bg-secondary);
    max-width: 100%;
    padding: 6rem 0;
}

.featured-section .section-header {
    padding: 0 5rem;
    max-width: 1400px;
    margin: 0 auto 4rem;
}

.models-carousel {
    display: flex;
    gap: 2rem;
    padding: 0 5rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.models-carousel::-webkit-scrollbar {
    display: none;
}

.model-card {
    flex: 0 0 380px;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    scroll-snap-align: start;
}

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

.model-image {
    height: 200px;
    width: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.model-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, var(--bg-card), transparent);
}

.model-content {
    padding: 1.75rem;
}

.model-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.model-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.model-content p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.model-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.model-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ============================================
   Data Visualization Section
   ============================================ */

.data-viz-section {
    background: var(--bg-primary);
}

.viz-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.viz-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.viz-card:hover {
    border-color: var(--border-color-hover);
}

.viz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.viz-title {
    font-size: 1rem;
    font-weight: 600;
}

/* ============================================
   Compare Section
   ============================================ */

.compare-section {
    background: var(--bg-secondary);
    max-width: 100%;
}

.compare-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.compare-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.compare-card:hover {
    border-color: var(--border-color-hover);
}

.compare-card.featured {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.compare-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.compare-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.compare-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.compare-specs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.spec-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
}

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

.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 1.25rem;
}

.cta-content > p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-size: 1.125rem;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-form input {
    flex: 1;
    min-width: 280px;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-normal);
}

.newsletter-form input:focus {
    border-color: var(--accent-primary);
}

.newsletter-form input::placeholder {
    color: var(--text-muted);
}

.form-note {
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 5rem 5rem 2rem;
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.footer-brand .logo-icon {
    width: 40px;
    height: 40px;
}

.footer-brand .logo span {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    transition: color var(--transition-normal);
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Loading States
   ============================================ */

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* ============================================
   Scroll Reveal Animation
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

@media (max-width: 1200px) {
    .glass-header {
        padding: 1rem 3rem;
    }
    
    .content-section,
    .featured-section .section-header,
    .data-viz-section,
    .compare-section {
        padding-left: 3rem;
        padding-right: 3rem;
    }
    
    .models-carousel {
        padding-left: 3rem;
        padding-right: 3rem;
    }
    
    .site-footer {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bento-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .viz-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compare-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .glass-header {
        padding: 1rem 1.5rem;
    }
    
    .hero-full {
        padding: 6rem 1.5rem 3rem;
    }
    
    .content-section,
    .featured-section .section-header,
    .data-viz-section,
    .compare-section {
        padding: 4rem 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-card.large,
    .bento-card.wide {
        grid-column: span 1;
    }
    
    .viz-grid {
        grid-template-columns: 1fr;
    }
    
    .model-card {
        flex: 0 0 300px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: 100%;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        min-width: 100%;
    }
}

/* ============================================
   Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}