/* ============================================
   QUANTUM AI ACADEMY — STYLES
   ============================================ */

/* ============================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================ */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-surface: #1a1a24;
    --color-surface-glass: rgba(26, 26, 36, 0.6);
    --color-border: rgba(139, 92, 246, 0.15);
    --color-border-hover: rgba(139, 92, 246, 0.3);
    
    /* Primary gradient colors */
    --color-violet-400: #a78bfa;
    --color-violet-500: #8b5cf6;
    --color-violet-600: #7c3aed;
    --color-violet-700: #6d28d9;
    
    /* Accent colors */
    --color-cyan-400: #22d3ee;
    --color-cyan-500: #06b6d4;
    
    /* Text colors */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    /* Graphite accents */
    --color-graphite-400: #9ca3af;
    --color-graphite-500: #6b7280;
    --color-graphite-600: #4b5563;
    --color-graphite-700: #374151;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Layout */
    --container-max: 1280px;
    --container-padding: clamp(1rem, 5vw, 3rem);
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(139, 92, 246, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-canvas: -1;
    --z-base: 0;
    --z-nav: 100;
    --z-modal: 200;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* ============================================
   3. ANIMATED BACKGROUND CANVAS
   ============================================ */
.bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-canvas);
    opacity: 0.4;
    pointer-events: none;
}

/* ============================================
   4. NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    padding: var(--space-sm) 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--color-violet-500);
}

.logo-text {
    color: var(--color-text-primary);
}

.logo-accent {
    background: linear-gradient(135deg, var(--color-violet-400), var(--color-cyan-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) 0;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-violet-500), var(--color-cyan-400));
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

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

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
    transform-origin: center;
}

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

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

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

/* ============================================
   5. SHARED COMPONENTS
   ============================================ */

/* Section Container */
.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-violet-400);
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    background: rgba(139, 92, 246, 0.05);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-violet-400), var(--color-cyan-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glass Card */
.glass-card {
    background: var(--color-surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.glass-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-violet-600), var(--color-violet-500));
    color: white;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(124, 58, 237, 0.4);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

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

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ============================================
   6. HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
    overflow: hidden;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--color-cyan-400);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
}

.hero-desc {
    max-width: 560px;
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-violet-400);
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    max-width: 140px;
}

/* Hero Visual Elements */
.hero-visual {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    pointer-events: none;
}

.molecule-ring {
    position: absolute;
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50%;
    animation: rotate linear infinite;
}

.molecule-ring-1 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    margin: -100px 0 0 -100px;
    animation-duration: 20s;
}

.molecule-ring-2 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    margin: -150px 0 0 -150px;
    animation-duration: 30s;
    animation-direction: reverse;
}

.molecule-ring-3 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    margin: -200px 0 0 -200px;
    animation-duration: 40s;
}

.molecule-orbital {
    position: absolute;
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, var(--color-violet-500), var(--color-cyan-400));
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}

.molecule-ring-1 .molecule-orbital {
    top: -6px;
    left: 50%;
    margin-left: -6px;
}

.molecule-ring-2 .molecule-orbital {
    bottom: -6px;
    left: 50%;
    margin-left: -6px;
}

.molecule-ring-3 .molecule-orbital {
    top: 50%;
    right: -6px;
    margin-top: -6px;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hologram-grid {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 350px;
    height: 350px;
    margin: -175px 0 0 -175px;
    background-image: 
        linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
    background-size: 30px 30px;
    border-radius: 50%;
    animation: hologram-pulse 4s ease-in-out infinite;
}

@keyframes hologram-pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* ============================================
   7. ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-3xl) 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr) 1.5fr;
    gap: var(--space-lg);
    align-items: stretch;
}

.about-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.card-icon {
    width: 48px;
    height: 48px;
    color: var(--color-violet-400);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.about-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.about-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 280px;
}

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

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(transparent, rgba(10, 10, 15, 0.9));
}

.overlay-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-cyan-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   8. PROGRAMS SECTION
   ============================================ */
.programs {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.03) 50%, transparent 100%);
}

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

.program-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.program-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-6px);
}

.program-visual {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.program-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.program-card:hover .program-visual img {
    transform: scale(1.05);
}

.program-number {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-cyan-400);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
}

.program-content {
    padding: var(--space-xl);
}

.program-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.program-content > p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.program-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.program-features li {
    position: relative;
    padding-left: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.program-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: linear-gradient(135deg, var(--color-violet-500), var(--color-cyan-400));
    border-radius: 50%;
}

.program-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-violet-400);
    transition: color var(--transition-base);
}

.program-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

.program-link:hover {
    color: var(--color-cyan-400);
}

.program-link:hover svg {
    transform: translateX(4px);
}

/* ============================================
   9. LABORATORY SECTION
   ============================================ */
.lab {
    padding: var(--space-3xl) 0;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.project-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.project-status {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.project-status.active {
    background: rgba(34, 211, 238, 0.15);
    color: var(--color-cyan-400);
}

.project-status.review {
    background: rgba(167, 139, 250, 0.15);
    color: var(--color-violet-400);
}

.project-status.completed {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

.project-info {
    padding: var(--space-lg);
}

.project-info h3 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
}

.project-info > p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.meta-tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    padding: 4px 10px;
    background: rgba(139, 92, 246, 0.08);
    color: var(--color-violet-400);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* ============================================
   10. CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.02) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: center;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.contact-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
}

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-violet-400);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.contact-value {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.contact-visual {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

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

.visual-frame {
    position: absolute;
    inset: var(--space-md);
    pointer-events: none;
}

.frame-corner {
    position: absolute;
    width: 30px;
    height: 30px;
    border-color: var(--color-violet-500);
    border-style: solid;
    opacity: 0.5;
}

.frame-corner-tl {
    top: 0;
    left: 0;
    border-width: 2px 0 0 2px;
}

.frame-corner-tr {
    top: 0;
    right: 0;
    border-width: 2px 2px 0 0;
}

.frame-corner-bl {
    bottom: 0;
    left: 0;
    border-width: 0 0 2px 2px;
}

.frame-corner-br {
    bottom: 0;
    right: 0;
    border-width: 0 2px 2px 0;
}

/* ============================================
   11. FOOTER
   ============================================ */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--color-border);
}

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

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.footer-col h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-col a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.footer-col a:hover {
    color: var(--color-violet-400);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.footer-location {
    margin-top: var(--space-xs);
    font-family: var(--font-mono);
}

/* ============================================
   12. SCROLL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ============================================
   13. RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-image {
        grid-column: 1 / -1;
        min-height: 240px;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-visual img {
        height: 300px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        padding: var(--space-xl) 0;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        display: block;
        padding: var(--space-md) var(--space-xl);
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(139, 92, 246, 0.05);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-stats {
        gap: var(--space-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: var(--space-xl);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero {
        padding-top: calc(var(--space-2xl) + 60px);
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .program-content {
        padding: var(--space-lg);
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm);
    }
}

/* ============================================
   14. 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;
    }
}