/* ============================================
   VERTEX AI DISASTER PREDICTION ACADEMY
   Stylesheet - Futuristic DisasterTech Theme
   ============================================ */

/* ------------------------------------------
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ------------------------------------------ */
:root {
    /* Core Colors - Dark Navy & Crimson */
    --color-bg-primary: #0a0f1a;
    --color-bg-secondary: #0f1729;
    --color-bg-tertiary: #141d2e;
    --color-bg-glass: rgba(15, 23, 41, 0.7);
    
    --color-accent-crimson: #dc2626;
    --color-accent-crimson-light: #ef4444;
    --color-accent-crimson-dark: #991b1b;
    --color-accent-navy: #1e3a5f;
    --color-accent-navy-light: #2d5a87;
    
    /* Text Colors */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0a0f1a 0%, #1e3a5f 50%, #0a0f1a 100%);
    --gradient-crimson: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    --gradient-glow: radial-gradient(circle, rgba(220, 38, 38, 0.15) 0%, transparent 70%);
    
    /* Glassmorphism */
    --glass-bg: rgba(15, 23, 41, 0.6);
    --glass-border: rgba(220, 38, 38, 0.15);
    --glass-blur: 16px;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --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;
    
    /* Animation */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(220, 38, 38, 0.15);
    --shadow-card: 0 4px 24px 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);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

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

.text-accent {
    color: var(--color-accent-crimson-light);
}

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

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

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

/* ------------------------------------------
   4. BUTTON COMPONENTS
   ------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-crimson);
    color: var(--color-text-primary);
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(220, 38, 38, 0.4);
}

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

.btn-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

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

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

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

.nav.scrolled {
    background: rgba(10, 15, 26, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

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

.nav-logo-icon {
    color: var(--color-accent-crimson);
    font-size: var(--text-2xl);
    animation: pulse 3s ease-in-out infinite;
}

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

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

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

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

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

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

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

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

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

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

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(220, 38, 38, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(220, 38, 38, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-accent-crimson);
    border-radius: 50%;
    opacity: 0.6;
    animation: float-up linear infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent-crimson-light);
    margin-bottom: var(--space-lg);
    padding: var(--space-xs) var(--space-md);
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: var(--radius-sm);
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent-crimson);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero-title-gradient {
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-crimson-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 520px;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero-cta {
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-3xl);
}

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

.hero-stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-accent-crimson-light);
    line-height: 1;
}

.hero-stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
    letter-spacing: 0.05em;
}

/* Hologram Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hologram-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.hologram-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(220, 38, 38, 0.2);
    animation: ring-pulse 4s ease-in-out infinite;
}

.ring-1 {
    width: 200px;
    height: 200px;
    top: 100px;
    left: 100px;
    animation-delay: 0s;
}

.ring-2 {
    width: 280px;
    height: 280px;
    top: 60px;
    left: 60px;
    animation-delay: 0.5s;
}

.ring-3 {
    width: 360px;
    height: 360px;
    top: 20px;
    left: 20px;
    animation-delay: 1s;
}

.hologram-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
}

.hologram-globe {
    width: 100%;
    height: 100%;
    animation: globe-rotate 20s linear infinite;
}

.hologram-data {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.data-line {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-xs) var(--space-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    opacity: 0;
    animation: data-reveal 0.5s ease forwards;
    animation-delay: var(--delay);
}

.data-value {
    color: var(--color-accent-crimson-light);
}

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

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

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

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

.about-feature {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-accent-crimson-light);
}

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

.about-feature h4 {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.about-feature p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
}

.about-visual {
    position: relative;
}

.about-image-container {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: 600px;
    object-fit: cover;
    filter: brightness(0.8) contrast(1.1);
}

.about-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 15, 26, 0.8) 100%);
}

.about-image-frame {
    position: absolute;
    inset: 16px;
    pointer-events: none;
}

.frame-corner {
    position: absolute;
    width: 24px;
    height: 24px;
    border-color: var(--color-accent-crimson);
    opacity: 0.6;
}

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

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

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

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

.about-floating-card {
    position: absolute;
    bottom: -40px;
    left: -40px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    min-width: 240px;
    box-shadow: var(--shadow-glow);
    animation: float-card 6s ease-in-out infinite;
}

.floating-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--glass-border);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    animation: pulse 2s ease-in-out infinite;
}

.status-indicator.active {
    box-shadow: 0 0 8px #22c55e;
}

.floating-card-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.monitor-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    font-size: var(--text-sm);
}

.monitor-value {
    font-family: var(--font-mono);
    font-weight: 600;
}

.monitor-value.warning {
    color: #f59e0b;
}

.monitor-value.normal {
    color: #22c55e;
}

/* ------------------------------------------
   8. PROGRAMS SECTION
   ------------------------------------------ */
.programs {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-primary);
}

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

.section-header .section-label {
    justify-content: center;
}

.section-header .section-title {
    margin-bottom: var(--space-md);
}

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

.program-card {
    position: relative;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(220, 38, 38, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-crimson);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.program-card:hover {
    transform: translateY(-4px);
    border-color: rgba(220, 38, 38, 0.3);
    box-shadow: var(--shadow-glow);
}

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

.program-card-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

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

.program-card-content {
    position: relative;
    z-index: 2;
}

.program-number {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-crimson);
    margin-bottom: var(--space-md);
    opacity: 0.7;
}

.program-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    color: var(--color-accent-crimson-light);
    transition: all var(--transition-base);
}

.program-card:hover .program-icon {
    background: rgba(220, 38, 38, 0.2);
    transform: scale(1.05);
}

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

.program-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.program-description {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

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

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

.program-features li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-accent-crimson);
    font-weight: 600;
}

.program-meta {
    display: flex;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(220, 38, 38, 0.1);
}

.program-duration,
.program-level {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

.program-duration {
    background: rgba(220, 38, 38, 0.1);
    color: var(--color-accent-crimson-light);
}

.program-level {
    background: rgba(30, 58, 95, 0.3);
    color: var(--color-accent-navy-light);
}

/* ------------------------------------------
   9. PREDICTION LAB SECTION
   ------------------------------------------ */
.prediction-lab {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.lab-bg {
    position: absolute;
    inset: 0;
}

.lab-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(220, 38, 38, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(220, 38, 38, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
}

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

.project-card {
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(220, 38, 38, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(220, 38, 38, 0.2);
    box-shadow: var(--shadow-glow);
}

.project-image {
    position: relative;
    height: 200px;
    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-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(10, 15, 26, 0.9) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: var(--space-md);
}

.project-status {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

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

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

.tag {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: 4px 10px;
    background: rgba(220, 38, 38, 0.08);
    color: var(--color-accent-crimson-light);
    border-radius: var(--radius-sm);
    letter-spacing: 0.03em;
}

.project-title {
    font-size: var(--text-lg);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
}

.project-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.project-stats {
    display: flex;
    gap: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(220, 38, 38, 0.08);
}

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

.stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-accent-crimson-light);
}

/* ------------------------------------------
   10. CONTACT SECTION
   ------------------------------------------ */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-primary);
}

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

.contact-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: rgba(220, 38, 38, 0.3);
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(220, 38, 38, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-accent-crimson-light);
    flex-shrink: 0;
}

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

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

.contact-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

.contact-form-container {
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(220, 38, 38, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

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

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

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid rgba(220, 38, 38, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--text-sm);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-crimson);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.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='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

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

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

/* ------------------------------------------
   11. FOOTER
   ------------------------------------------ */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(220, 38, 38, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 800;
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    max-width: 280px;
}

.footer-links h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

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

.footer-links a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(220, 38, 38, 0.08);
}

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

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

.footer-legal a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: var(--color-accent-crimson-light);
}

/* ------------------------------------------
   12. TOAST NOTIFICATION
   ------------------------------------------ */
.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-slow);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.toast-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #22c55e;
    border-radius: 50%;
    color: white;
    font-size: var(--text-sm);
    font-weight: 700;
}

.toast-message {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

/* ------------------------------------------
   13. ANIMATIONS
   ------------------------------------------ */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes float-up {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

@keyframes ring-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.6;
    }
}

@keyframes globe-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes data-reveal {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ------------------------------------------
   14. RESPONSIVE DESIGN
   ------------------------------------------ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-visual {
        order: -1;
    }
    
    .about-image {
        height: 400px;
    }
    
    .about-floating-card {
        left: auto;
        right: 20px;
        bottom: -20px;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero {
        padding-top: calc(var(--space-2xl) + 60px);
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
        align-items: center;
    }
    
    .projects-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;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 3rem;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .program-meta {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .about-floating-card {
        position: relative;
        bottom: auto;
        left: auto;
        right: auto;
        margin-top: var(--space-lg);
        animation: none;
    }
}

/* ------------------------------------------
   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. PRINT STYLES
   ------------------------------------------ */
@media print {
    .nav,
    .hero-bg,
    .hero-visual,
    .about-visual,
    .lab-bg,
    .btn,
    .toast {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section-title {
        color: black !important;
    }
}