/* ============================================
   QUANTUM AI SEMICONDUCTOR ACADEMY
   Premium Stylesheet
   ============================================ */

/* ============================================
   1. CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
    /* Color Palette - Graphite & Electric Blue */
    --color-bg-primary: #0a0e17;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1a2332;
    --color-bg-glass: rgba(17, 24, 39, 0.7);
    
    --color-accent-primary: #00d4ff;
    --color-accent-secondary: #0099cc;
    --color-accent-glow: rgba(0, 212, 255, 0.3);
    --color-accent-dim: rgba(0, 212, 255, 0.1);
    
    --color-text-primary: #f0f4f8;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-border: rgba(148, 163, 184, 0.15);
    --color-border-hover: rgba(0, 212, 255, 0.4);
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #111827 50%, #0f172a 100%);
    --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ============================================
   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);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

img, svg {
    display: block;
    max-width: 100%;
}

/* ============================================
   3. UTILITY CLASSES
   ============================================ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.glass {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent-primary);
    margin-bottom: var(--space-sm);
}

.section-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--color-accent-primary);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

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

/* ============================================
   4. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--color-border-hover);
    background: var(--color-accent-dim);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

.btn:hover .btn-arrow {
    transform: translateX(3px);
}

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

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 700;
    font-size: 1.25rem;
}

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

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

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

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

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-base);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    margin: 5px 0;
    transition: all var(--transition-base);
    border-radius: 1px;
}

/* ============================================
   6. HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-canvas {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-canvas canvas {
    width: 100%;
    height: 100%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, transparent 0%, var(--color-bg-primary) 70%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1280px;
    margin: 0 auto;
    padding: calc(var(--space-2xl) + 80px) var(--space-md) var(--space-2xl);
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    background: var(--color-accent-dim);
    border: 1px solid var(--color-border-hover);
    border-radius: 100px;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}

.badge-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.6s ease 0.1s forwards;
    opacity: 0;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 560px;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

.hero-wafer {
    position: absolute;
    right: -10%;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
    z-index: 2;
    opacity: 0.15;
    pointer-events: none;
}

.wafer-ring {
    position: absolute;
    border: 1px solid var(--color-accent-primary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 {
    width: 100%;
    height: 100%;
    animation: rotate 60s linear infinite;
}

.ring-2 {
    width: 70%;
    height: 70%;
    animation: rotate 40s linear infinite reverse;
}

.ring-3 {
    width: 40%;
    height: 40%;
    animation: rotate 20s linear infinite;
}

.wafer-core {
    position: absolute;
    width: 15%;
    height: 15%;
    background: var(--color-accent-primary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 60px var(--color-accent-glow);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    z-index: 3;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent-primary), transparent);
    animation: scrollPulse 2s ease infinite;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

/* ============================================
   7. ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-2xl) 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-text {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-item:hover {
    background: var(--color-accent-dim);
}

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

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

.feature-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.feature-info p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.visual-card {
    width: 100%;
    max-width: 440px;
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    position: relative;
    z-index: 2;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.card-status {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

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

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.dash-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dash-label {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dash-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

.dash-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    overflow: hidden;
}

.dash-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 2px;
    transition: width 1.5s ease;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.pulse-ring {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    position: relative;
}

.pulse-ring::before {
    content: '';
    position: absolute;
    inset: -4px;
    border: 2px solid #22c55e;
    border-radius: 50%;
    animation: ringPulse 2s ease infinite;
}

.visual-accent {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--color-accent-glow);
    border-radius: 50%;
    filter: blur(80px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    opacity: 0.5;
}

/* ============================================
   8. SYSTEMS SECTION
   ============================================ */
.systems {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

.systems::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-hover), transparent);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

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

.system-card {
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.system-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

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

.system-icon {
    width: 64px;
    height: 64px;
    color: var(--color-accent-primary);
    margin-bottom: var(--space-md);
}

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

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

.system-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.system-tags {
    display: flex;
    gap: var(--space-xs);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    padding: 0.375rem 0.75rem;
    background: var(--color-accent-dim);
    color: var(--color-accent-primary);
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   9. PROGRAMS SECTION
   ============================================ */
.programs {
    padding: var(--space-2xl) 0;
    position: relative;
}

.programs-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.program-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.program-item:hover {
    border-color: var(--color-border-hover);
    transform: translateX(8px);
}

.program-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.program-item:hover .program-glow {
    opacity: 1;
}

.program-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent-primary);
    opacity: 0.6;
}

.program-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

.program-meta {
    display: flex;
    gap: var(--space-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.meta-item svg {
    width: 16px;
    height: 16px;
}

.program-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.program-arrow svg {
    width: 20px;
    height: 20px;
}

.program-item:hover .program-arrow {
    color: var(--color-accent-primary);
    transform: translateX(4px);
}

/* ============================================
   10. CHIP DESIGN LAB SECTION
   ============================================ */
.lab {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

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

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

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

.project-visual {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.chip-render {
    position: relative;
    width: 80px;
    height: 80px;
}

.chip-die {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-accent-primary) 0%, var(--color-accent-secondary) 100%);
    border-radius: var(--radius-sm);
    opacity: 0.9;
    box-shadow: 0 0 30px var(--color-accent-glow);
}

.chip-bond {
    position: absolute;
    width: 12px;
    height: 3px;
    background: var(--color-accent-primary);
    top: 50%;
    left: 50%;
    transform-origin: center;
    transform: rotate(calc(var(--i) * 45deg)) translateX(50px);
    opacity: 0.6;
}

.chip-ring {
    position: absolute;
    inset: -20%;
    border: 2px solid var(--color-accent-primary);
    border-radius: 50%;
    opacity: 0.4;
    animation: pulse 3s ease infinite;
}

.chip-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.2) 1px, transparent 1px);
    background-size: 10px 10px;
    opacity: 0.5;
}

.chip-trace {
    position: absolute;
    inset: -30%;
    border: 1px solid var(--color-accent-primary);
    border-radius: 50%;
    opacity: 0.3;
}

.chip-trace::before,
.chip-trace::after {
    content: '';
    position: absolute;
    border: 1px solid var(--color-accent-primary);
    border-radius: 50%;
}

.chip-trace::before {
    inset: 20%;
}

.chip-trace::after {
    inset: 40%;
}

.chip-hier {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hier-level {
    position: absolute;
    border: 1px solid var(--color-accent-primary);
    border-radius: var(--radius-sm);
    opacity: 0.4;
}

.hier-level.l1 {
    width: 100%;
    height: 100%;
}

.hier-level.l2 {
    width: 70%;
    height: 70%;
}

.hier-level.l3 {
    width: 40%;
    height: 40%;
}

.chip-mesh {
    position: absolute;
    inset: -20%;
    background: 
        conic-gradient(from 0deg, transparent 0deg, var(--color-accent-primary) 10deg, transparent 20deg),
        conic-gradient(from 90deg, transparent 0deg, var(--color-accent-primary) 10deg, transparent 20deg);
    opacity: 0.2;
    animation: rotate 10s linear infinite;
}

.project-overlay {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
}

.project-status {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.375rem 0.875rem;
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent-primary);
    border-radius: 100px;
    border: 1px solid var(--color-border-hover);
}

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

.project-info h4 {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

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

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

.project-tags span {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    padding: 0.25rem 0.625rem;
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
    border-radius: 4px;
    text-transform: uppercase;
}

/* ============================================
   11. CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-2xl) 0;
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

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

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

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

.contact-item:hover {
    background: var(--color-accent-dim);
}

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

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

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

.contact-form-wrapper {
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-border-hover);
    box-shadow: 0 0 0 3px var(--color-accent-dim);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-group select option {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-md);
    padding: var(--space-xl);
}

.form-success.active {
    display: flex;
}

.success-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(34, 197, 94, 0.15);
    border-radius: 50%;
    color: #22c55e;
}

.success-icon svg {
    width: 32px;
    height: 32px;
}

.form-success h4 {
    font-size: 1.25rem;
    font-weight: 700;
}

.form-success p {
    color: var(--color-text-secondary);
}

/* ============================================
   12. FOOTER
   ============================================ */
.footer {
    padding: var(--space-2xl) 0 var(--space-lg);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

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

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

.footer-tagline {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-accent-dim);
    color: var(--color-accent-primary);
}

.footer-social a svg {
    width: 18px;
    height: 18px;
}

.footer-links h5 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

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

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

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

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

.footer-legal a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

/* ============================================
   13. ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes ringPulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

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

/* ============================================
   14. RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .systems-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-wafer {
        width: 400px;
        height: 400px;
        right: -20%;
        opacity: 0.1;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-primary);
        flex-direction: column;
        padding: calc(var(--space-2xl) + 60px) var(--space-lg) var(--space-lg);
        gap: var(--space-md);
        transition: right var(--transition-base);
        border-left: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-md);
    }
    
    .stat-divider {
        display: none;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .program-item {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .program-arrow {
        display: none;
    }
    
    .program-number {
        position: absolute;
        top: var(--space-md);
        right: var(--space-md);
    }
    
    .lab-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-wafer {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --space-2xl: 4rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .system-card {
        padding: var(--space-lg);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: var(--space-lg);
    }
}

/* ============================================
   15. 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;
    }
}

/* ============================================
   16. SELECTION STYLES
   ============================================ */
::selection {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-secondary);
}