/* ============================================
   QUANTUM AI INTELLIGENT TEXTILE ACADEMY
   Premium Stylesheet
   ============================================ */

/* ============================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
    /* Color Palette - White, Silver, Violet Gradients */
    --color-white: #ffffff;
    --color-snow: #f8f7fc;
    --color-lavender: #e9e5f5;
    --color-thistle: #d4cee8;
    --color-silver: #b8b0d2;
    --color-slate: #8b82a8;
    --color-grape: #6b5b95;
    --color-violet: #7c3aed;
    --color-purple: #6d28d9;
    --color-deep-purple: #5b21b6;
    --color-night: #1e1b2e;
    --color-void: #0f0d1a;
    --color-black: #0a0912;

    /* Gradient Definitions */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a78bfa 50%, #c4b5fd 100%);
    --gradient-hero: linear-gradient(135deg, #f8f7fc 0%, #e9e5f5 30%, #ddd6fe 60%, #c4b5fd 100%);
    --gradient-dark: linear-gradient(180deg, #0f0d1a 0%, #1e1b2e 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1280px;
    --container-padding: var(--space-6);
    --section-gap: var(--space-24);

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(15, 13, 26, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 13, 26, 0.1), 0 2px 4px -1px rgba(15, 13, 26, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(15, 13, 26, 0.1), 0 4px 6px -2px rgba(15, 13, 26, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 13, 26, 0.1), 0 10px 10px -5px rgba(15, 13, 26, 0.04);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-smooth: 600ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
*, *::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: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-night);
    background: var(--color-snow);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

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

/* ============================================
   4. GLASSMORPHISM UTILITIES
   ============================================ */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* ============================================
   5. NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: all var(--transition-slow);
}

.navbar.scrolled {
    background: rgba(248, 247, 252, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: var(--space-3) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: 1001;
}

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

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

.logo-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-night);
    letter-spacing: -0.02em;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
    padding: var(--space-2);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-night);
    transition: all var(--transition-base);
    border-radius: var(--radius-full);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-slate);
    position: relative;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

/* ============================================
   6. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md), 0 0 20px rgba(124, 58, 237, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(124, 58, 237, 0.3);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: var(--color-violet);
    border: 1px solid rgba(124, 58, 237, 0.2);
}

.btn-secondary:hover {
    background: rgba(124, 58, 237, 0.05);
    border-color: rgba(124, 58, 237, 0.4);
    transform: translateY(-2px);
}

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

.btn-full {
    width: 100%;
}

/* ============================================
   7. SECTION UTILITIES
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
    position: relative;
    z-index: 1;
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-violet);
    background: rgba(124, 58, 237, 0.08);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-night);
    letter-spacing: -0.03em;
}

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

/* ============================================
   8. HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--space-24) + 80px) var(--container-padding) var(--space-24);
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-violet);
    background: rgba(124, 58, 237, 0.08);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
    width: fit-content;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: var(--radius-full);
    animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--text-6xl);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-night);
    letter-spacing: -0.04em;
    margin-bottom: var(--space-6);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-slate);
    line-height: 1.7;
    max-width: 480px;
    margin-bottom: var(--space-8);
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    gap: var(--space-10);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-violet);
    line-height: 1;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-slate);
    font-weight: 500;
}

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

.holographic-display {
    position: relative;
    width: 400px;
    height: 400px;
}

.display-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(124, 58, 237, 0.15);
    animation: ring-rotate 20s linear infinite;
}

.ring-1 {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    animation-duration: 20s;
}

.ring-2 {
    width: 75%;
    height: 75%;
    top: 12.5%;
    left: 12.5%;
    animation-duration: 15s;
    animation-direction: reverse;
}

.ring-3 {
    width: 50%;
    height: 50%;
    top: 25%;
    left: 25%;
    animation-duration: 10s;
}

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

.fabric-core {
    position: absolute;
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    border-radius: 50%;
    background: var(--gradient-primary);
    box-shadow: 0 0 60px rgba(124, 58, 237, 0.3), inset 0 0 40px rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: core-pulse 4s ease infinite;
}

@keyframes core-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 60px rgba(124, 58, 237, 0.3); }
    50% { transform: scale(1.05); box-shadow: 0 0 80px rgba(124, 58, 237, 0.4); }
}

.fabric-pattern {
    position: absolute;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, 0.3);
    animation: pattern-spin 10s linear infinite;
}

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

.ai-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--color-white);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    animation: node-orbit var(--duration, 8s) linear infinite;
}

.node-1 { --duration: 8s; top: 10%; left: 50%; transform-origin: 0 150px; }
.node-2 { --duration: 12s; top: 50%; right: 10%; transform-origin: -150px 0; }
.node-3 { --duration: 10s; bottom: 10%; left: 50%; transform-origin: 0 -150px; }
.node-4 { --duration: 14s; top: 50%; left: 10%; transform-origin: 150px 0; }
.node-5 { --duration: 16s; top: 20%; left: 20%; transform-origin: 100px 100px; }

@keyframes node-orbit {
    from { transform: rotate(0deg) translateX(var(--orbit-radius, 150px)) rotate(0deg); }
    to { transform: rotate(360deg) translateX(var(--orbit-radius, 150px)) rotate(-360deg); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    z-index: 2;
}

.scroll-indicator span {
    font-size: var(--text-xs);
    color: var(--color-slate);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--color-slate);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-wheel {
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-violet);
    border-radius: var(--radius-full);
    animation: scroll-wheel 2s ease infinite;
}

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

/* ============================================
   9. ABOUT SECTION
   ============================================ */
.about {
    position: relative;
    z-index: 1;
    padding: var(--section-gap) var(--container-padding);
    background: var(--color-white);
}

.about-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.about-card {
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(124, 58, 237, 0.08);
}

.about-card.featured {
    grid-row: span 2;
    padding: 0;
    overflow: hidden;
}

.about-card.featured .card-image {
    height: 60%;
    overflow: hidden;
}

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

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

.about-card.featured .card-content {
    padding: var(--space-6);
}

.card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-4);
}

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

.about-card h3 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-night);
    margin-bottom: var(--space-3);
}

.about-card p {
    font-size: var(--text-sm);
    color: var(--color-slate);
    line-height: 1.7;
}

.about-image-wide {
    max-width: var(--container-max);
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.about-image-wide img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-8);
    background: linear-gradient(to top, rgba(15, 13, 26, 0.9), transparent);
}

.overlay-stats {
    display: flex;
    gap: var(--space-12);
}

.overlay-stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.overlay-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-white);
}

.overlay-label {
    font-size: var(--text-sm);
    color: var(--color-lavender);
}

/* ============================================
   10. PROGRAMS SECTION
   ============================================ */
.programs {
    position: relative;
    z-index: 1;
    padding: var(--section-gap) var(--container-padding);
    background: var(--color-snow);
}

.programs-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.program-card {
    display: grid;
    grid-template-columns: 1fr 300px;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
}

.program-card:hover {
    box-shadow: var(--shadow-xl), 0 0 60px rgba(124, 58, 237, 0.06);
    transform: translateX(8px);
}

.program-number {
    position: absolute;
    top: var(--space-6);
    left: var(--space-6);
    font-family: var(--font-display);
    font-size: var(--text-6xl);
    font-weight: 700;
    color: var(--color-lavender);
    line-height: 1;
    z-index: 1;
}

.program-content {
    padding: var(--space-10) var(--space-8) var(--space-8) var(--space-8);
    position: relative;
    z-index: 2;
}

.program-icon {
    width: 48px;
    height: 48px;
    color: var(--color-violet);
    margin-bottom: var(--space-4);
}

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

.program-content h3 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-night);
    margin-bottom: var(--space-2);
}

.program-duration {
    font-size: var(--text-sm);
    color: var(--color-violet);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.program-description {
    color: var(--color-slate);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.program-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.program-features li {
    font-size: var(--text-sm);
    color: var(--color-slate);
    padding-left: var(--space-6);
    position: relative;
}

.program-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 16px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.program-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-violet);
    transition: gap var(--transition-fast);
}

.program-link:hover {
    gap: var(--space-3);
}

.program-link svg {
    width: 18px;
    height: 18px;
}

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

.visual-fabric {
    width: 100%;
    height: 100%;
    position: relative;
}

.smart-fabric {
    background: linear-gradient(135deg, #e9e5f5 0%, #ddd6fe 50%, #c4b5fd 100%);
}

.wearable-fabric {
    background: linear-gradient(135deg, #ddd6fe 0%, #c4b5fd 50%, #a78bfa 100%);
}

.adaptive-fabric {
    background: linear-gradient(135deg, #c4b5fd 0%, #a78bfa 50%, #8b5cf6 100%);
}

.digital-fabric {
    background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 50%, #7c3aed 100%);
}

.visual-fabric::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.1) 20px),
        repeating-linear-gradient(-45deg, transparent, transparent 10px, rgba(255,255,255,0.05) 10px, rgba(255,255,255,0.05) 20px);
    animation: fabric-shift 8s linear infinite;
}

@keyframes fabric-shift {
    from { background-position: 0 0, 0 0; }
    to { background-position: 40px 40px, -40px 40px; }
}

/* ============================================
   11. INNOVATION LAB SECTION
   ============================================ */
.innovation-lab {
    position: relative;
    z-index: 1;
    padding: var(--section-gap) var(--container-padding);
    background: var(--color-white);
}

.lab-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.project-card {
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(124, 58, 237, 0.1);
}

.project-card.featured-project {
    grid-column: span 2;
    grid-row: span 2;
}

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

.project-card:not(.featured-project) .project-image {
    height: 200px;
}

.project-card.featured-project .project-image {
    height: 300px;
}

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

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-content {
    padding: var(--space-6);
}

.project-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-violet);
    background: rgba(124, 58, 237, 0.08);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
}

.project-content h3 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-night);
    margin-bottom: var(--space-3);
}

.project-content p {
    font-size: var(--text-sm);
    color: var(--color-slate);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-lavender);
}

.project-authors {
    font-size: var(--text-xs);
    color: var(--color-silver);
}

.project-year {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-thistle);
}

/* ============================================
   12. CONTACT SECTION
   ============================================ */
.contact {
    position: relative;
    z-index: 1;
    padding: var(--section-gap) var(--container-padding);
    background: var(--gradient-hero);
}

.contact-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-description {
    font-size: var(--text-lg);
    color: var(--color-slate);
    line-height: 1.7;
    margin-bottom: var(--space-8);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.5);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: var(--color-white);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.contact-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-silver);
}

.contact-value {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-night);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-md);
    color: var(--color-slate);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Contact Form */
.contact-form-wrapper {
    padding: var(--space-10);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-night);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-thistle);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    color: var(--color-night);
    background: var(--color-white);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-violet);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-silver);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238b82a8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: var(--space-10);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Campus Location */
.campus-location {
    max-width: var(--container-max);
    margin: var(--space-16) auto 0;
}

.location-visual {
    display: flex;
    align-items: center;
    gap: var(--space-10);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
}

.location-map {
    position: relative;
    width: 200px;
    height: 200px;
    flex-shrink: 0;
}

.map-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(124, 58, 237, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    border-radius: var(--radius-lg);
}

.map-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(124, 58, 237, 0.1);
    animation: map-pulse 3s ease infinite;
}

@keyframes map-pulse {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

.location-pin {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pin-core {
    width: 16px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
}

.pin-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-violet);
    border-radius: 50%;
    animation: pin-ring 2s ease infinite;
}

@keyframes pin-ring {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0; }
}

.location-info h4 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-night);
    margin-bottom: var(--space-3);
}

.location-info p {
    color: var(--color-slate);
    line-height: 1.7;
    max-width: 400px;
}

/* ============================================
   13. FOOTER
   ============================================ */
.footer {
    position: relative;
    z-index: 1;
    background: var(--color-void);
    padding: var(--space-16) var(--container-padding) var(--space-8);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand .logo-text {
    color: var(--color-white);
}

.footer-tagline {
    margin-top: var(--space-4);
    color: var(--color-slate);
    font-size: var(--text-lg);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-column h4 {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-5);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-column a {
    font-size: var(--text-sm);
    color: var(--color-slate);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-lavender);
}

.footer-bottom {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: var(--color-slate);
}

/* ============================================
   14. ANIMATIONS & INTERACTIONS
   ============================================ */
/* Fade In Up Animation */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

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

/* Stagger Children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-children.visible > * {
    animation: stagger-fade-in 0.6s ease forwards;
}

.stagger-children.visible > *:nth-child(1) { animation-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children.visible > *:nth-child(3) { animation-delay: 0.2s; }
.stagger-children.visible > *:nth-child(4) { animation-delay: 0.3s; }
.stagger-children.visible > *:nth-child(5) { animation-delay: 0.4s; }
.stagger-children.visible > *:nth-child(6) { animation-delay: 0.5s; }

@keyframes stagger-fade-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hover Glow Effect */
.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.15);
}

/* ============================================
   15. RESPONSIVE DESIGN
   ============================================ */
/* Tablet */
@media (max-width: 1024px) {
    :root {
        --text-6xl: 3rem;
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        display: none;
    }

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

    .about-card.featured {
        grid-row: auto;
    }

    .program-card {
        grid-template-columns: 1fr;
    }

    .program-visual {
        height: 200px;
        order: -1;
    }

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

    .project-card.featured-project {
        grid-column: span 2;
        grid-row: auto;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --container-padding: var(--space-4);
        --section-gap: var(--space-16);
        --text-6xl: 2.5rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-6);
        padding: var(--space-8);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-slow);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: var(--text-lg);
    }

    .hero {
        padding-top: calc(var(--space-16) + 60px);
    }

    .hero-title {
        font-size: var(--text-4xl);
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
        align-items: center;
    }

    .about-image-wide img {
        height: 250px;
    }

    .overlay-stats {
        flex-direction: column;
        gap: var(--space-6);
    }

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

    .project-card.featured-project {
        grid-column: span 1;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .location-visual {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .scroll-indicator {
        display: none;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .btn {
        padding: var(--space-3) var(--space-5);
        font-size: var(--text-xs);
    }

    .program-content {
        padding: var(--space-6) var(--space-5) var(--space-5);
    }

    .contact-form-wrapper {
        padding: var(--space-6);
    }
}

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

    .fiber-canvas {
        display: none;
    }
}

/* ============================================
   17. PRINT STYLES
   ============================================ */
@media print {
    .fiber-canvas,
    .navbar,
    .scroll-indicator,
    .hero-visual,
    .hero-stats,
    .social-links,
    .contact-form-wrapper,
    .campus-location {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: var(--space-8) 0;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .glass-card {
        background: white !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
}