/* Background canvas for site-wide 3D animations */
.bg-canvas{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  pointer-events:none;
  opacity:0.32;
  z-index:0;
  mix-blend-mode:screen;
}

/* Ensure regular page content sits above the background canvas
   Exclude the loader so it can remain on top when active */
body > *:not(.bg-canvas):not(.loader){
  position:relative;
  z-index:1;
}

/* Allow disabling background via attribute: `<body data-bg-disabled>` */
body[data-bg-disabled="true"] .bg-canvas{ display:none !important; }

@media (prefers-reduced-motion: reduce){
  .bg-canvas{ opacity:0.06; display:block; }
}

/* =====================================================
   HIJACK SCIENCE CENTRE - FUTURISTIC 3D WEBSITE
   ===================================================== */

/* CSS Variables - Dark Mode (Default) */
:root {
  /* Primary Brand Colors (strict two-color palette requested) */
  --neon-blue: #00ADF1;     /* PRIMARY: bright logo blue */
  --neon-red: #F4000A;      /* SECONDARY: bright logo red */
  /* Map other accent tokens to the two brand colors so the whole
     site only uses these two colors (gradients, glows, animations, etc.) */
  --neon-yellow: var(--neon-red);
  --neon-green: var(--neon-blue);
  --neon-purple: var(--neon-red);
  --neon-pink: var(--neon-red);

  /* Background Colors */
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-tertiary: #1a1a3a;
  --bg-card: rgba(26, 26, 58, 0.8);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Glow Effects */
  --glow-primary: 0 0 18px var(--neon-blue), 0 0 36px rgba(0,173,241,0.25);
  --glow-secondary: 0 0 18px var(--neon-red), 0 0 36px rgba(244,0,10,0.18);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.6s ease;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
}

/* Light Mode Variables */
[data-theme="light"] {
  --bg-primary: #f0f4ff;
  --bg-secondary: #e0e8ff;
  --bg-tertiary: #d0d8f0;
  --bg-card: rgba(255, 255, 255, 0.9);

  --text-primary: #1a1a3a;
  --text-secondary: rgba(26, 26, 58, 0.7);
  --text-muted: rgba(26, 26, 58, 0.5);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(26, 26, 58, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --bg-primary: #f0f4ff;
  --bg-secondary: #e0e8ff;
  --bg-tertiary: #d0d8f0;

  --text-primary: #1a1a3a;
  --text-secondary: rgba(26, 26, 58, 0.7);
  --text-muted: rgba(26, 26, 58, 0.5);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(26, 26, 58, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

  --neon-blue: #0088cc;
  --neon-blue: #00ADF1;
  --neon-red: #F4000A;
  --neon-purple: var(--neon-red);
  --neon-yellow: var(--neon-red);
  --neon-green: var(--neon-blue);
  --neon-pink: var(--neon-red);
}

/* =====================================================
   BASE STYLES
   ===================================================== */

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

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

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Three.js Canvas */
#three-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* =====================================================
   LOADING SCREEN
   ===================================================== */

.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
  position: relative;
}

.loader-ring {
  position: absolute;
  width: 80px;
  height: 80px;
  border: 3px solid transparent;
  border-radius: 50%;
  animation: loaderSpin 1.5s linear infinite;
}

.loader-ring:nth-child(1) {
  border-top-color: var(--neon-blue);
  animation-delay: 0s;
}

.loader-ring:nth-child(2) {
  width: 60px;
  height: 60px;
  top: 10px;
  left: 10px;
  border-right-color: var(--neon-purple);
  animation-delay: 0.2s;
  animation-direction: reverse;
}

.loader-ring:nth-child(3) {
  width: 40px;
  height: 40px;
  top: 20px;
  left: 20px;
  border-bottom-color: var(--neon-green);
  animation-delay: 0.4s;
}

.loader-content p {
  margin-top: 100px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

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

/* =====================================================
   NAVIGATION
   ===================================================== */

.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  /* support using a logo image placed at assets/logo.png */
  background-image: url('../assets/logo.png');
  background-repeat: no-repeat;
  background-size: contain;
  background-position: left center;
  padding-left: 72px; /* make room for logo image */
  min-height: 48px;
}

.logo-text {
  color: var(--text-primary);
  /* hide textual logo when image is present (keep for accessibility)
     visually-hidden where appropriate */
  position: relative;
  left: -9999px;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

.logo-accent {
  color: var(--neon-blue);
  text-shadow: var(--glow-primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-red));
  transition: width var(--transition-medium);
}

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

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: 0.25rem;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  padding: 0.25rem;
  border: 1px solid var(--glass-border);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
  background: var(--neon-blue);
  color: white;
  box-shadow: var(--glow-primary);
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.toggle-track {
  width: 50px;
  height: 26px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  position: relative;
  border: 1px solid var(--glass-border);
  transition: background var(--transition-medium);
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--neon-blue);
  border-radius: 50%;
  transition: transform var(--transition-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-primary);
}

[data-theme="light"] .toggle-thumb {
  transform: translateX(24px);
  background: var(--neon-yellow);
  box-shadow: 0 0 20px var(--neon-yellow);
}

.sun-icon,
.moon-icon {
  font-size: 12px;
  position: absolute;
}

.sun-icon {
  opacity: 0;
}

.moon-icon {
  opacity: 1;
}

[data-theme="light"] .sun-icon {
  opacity: 1;
}

[data-theme="light"] .moon-icon {
  opacity: 0;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
  padding: 2rem;
  transform: translateY(-100%);
  opacity: 0;
  transition: all var(--transition-medium);
  z-index: 999;
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-links a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 500;
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--glass-border);
}

/* =====================================================
   HERO SECTION
   ===================================================== */

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-xl) var(--space-md);
  overflow: hidden;
}

.hero-content {
  text-align: center;
  z-index: 10;
  max-width: 900px;
}

.hero-title-wrapper {
  perspective: 1000px;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(50px) rotateX(-15deg);
}

.title-line.accent {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple), var(--neon-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.5));
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(30px);
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(30px);
}

/* Floating Panels */
.floating-panel {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  min-width: 150px;
  box-shadow: var(--glass-shadow);
  opacity: 0;
  animation: floatPanel 6s ease-in-out infinite;
}

.panel-1 {
  top: 20%;
  left: 5%;
  animation-delay: 0s;
}

.panel-2 {
  top: 30%;
  right: 5%;
  animation-delay: 2s;
}

.panel-3 {
  bottom: 25%;
  left: 10%;
  animation-delay: 4s;
}

@keyframes floatPanel {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(2deg);
  }
}

.panel-header {
  display: flex;
  gap: 4px;
  margin-bottom: 0.5rem;
}

.panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-red);
}

.panel-dot:nth-child(2) {
  background: var(--neon-yellow);
}
.panel-dot:nth-child(3) {
  background: var(--neon-green);
}

.panel-content {
  display: flex;
  flex-direction: column;
}

.panel-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.panel-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--neon-blue);
  text-shadow: var(--glow-primary);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeInUp 1s ease 2s forwards;
}

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

.wheel {
  width: 4px;
  height: 8px;
  background: var(--neon-blue);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
  0%,
  100% {
    opacity: 1;
    top: 8px;
  }
  50% {
    opacity: 0.5;
    top: 20px;
  }
}

.scroll-indicator span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
  }
}

/* =====================================================
   BUTTONS
   ===================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-red));
  color: white;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg);
  border-color: var(--neon-blue);
  box-shadow: var(--glow-primary);
}

.btn-small {
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
}

.btn-large {
  padding: 1.2rem 2.5rem;
  font-size: 1.1rem;
}

/* =====================================================
   SECTIONS
   ===================================================== */

section {
  padding: var(--space-xl) var(--space-md);
  position: relative;
}

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

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--text-primary), var(--neon-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Page Header */
.page-header {
  min-height: 40vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 100px;
}

.page-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

/* =====================================================
   FEATURES SECTION
   ===================================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
}

.feature-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-medium);
  transform-style: preserve-3d;
}

.feature-card:hover {
  transform: translateY(-10px) rotateX(5deg) rotateY(5deg);
  border-color: var(--neon-blue);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-sm);
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-red));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.icon-3d {
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* =====================================================
   STATS SECTION
   ===================================================== */

.stats-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.stat-item {
  padding: var(--space-md);
}

.stat-number {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* =====================================================
   CTA SECTION
   ===================================================== */

.cta-section {
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(170, 0, 255, 0.1));
  position: relative;
  overflow: hidden;
}

.cta-content {
  position: relative;
  z-index: 10;
}

.cta-content h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
}

.cta-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(170, 0, 255, 0.1) 0%, transparent 50%);
}

/* =====================================================
   COURSES PAGE
   ===================================================== */

.courses-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding: 0 var(--space-md);
  margin-bottom: var(--space-lg);
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  color: white;
  border-color: transparent;
  box-shadow: var(--glow-primary);
}

.courses-section {
  padding-top: 0;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
}

.course-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-medium);
  transform-style: preserve-3d;
}

.course-card:hover {
  transform: translateY(-10px) rotateX(5deg);
  border-color: var(--neon-blue);
}

.card-3d-object {
  height: 150px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.card-3d-object::before {
  content: "";
  position: absolute;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  border-radius: 50%;
  animation: cardObject 3s ease-in-out infinite;
}

@keyframes cardObject {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(180deg);
  }
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(0, 212, 255, 0.2), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

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

.card-content {
  padding: var(--space-md);
}

.card-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--neon-blue);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xs);
}

.card-badge.new {
  background: var(--neon-green);
}

.card-badge.hot {
  background: var(--neon-red);
}

.card-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.card-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.card-meta {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.meta-item svg {
  color: var(--neon-blue);
}

/* =====================================================
   LAB PAGE
   ===================================================== */

.lab-section {
  padding-top: 0;
}

.lab-container {
  display: grid;
  grid-template-columns: 200px 1fr 200px;
  gap: var(--space-md);
  max-width: 1400px;
  margin: 0 auto;
  min-height: 500px;
}

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

.lab-control-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lab-control-btn:hover,
.lab-control-btn.active {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  color: white;
  border-color: transparent;
}

.lab-canvas-container {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  min-height: 400px;
}

.lab-instructions {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.instruction-icon {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

.lab-instructions p {
  color: var(--text-secondary);
}

.lab-equipment {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
}

.lab-equipment h3 {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--glass-border);
}

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

.equipment-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.equipment-item:hover {
  background: rgba(0, 212, 255, 0.2);
  transform: translateX(5px);
}

.equipment-icon {
  font-size: 1.5rem;
}

.equipment-item span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Lab Modal */
.lab-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-medium);
}

.lab-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform var(--transition-medium);
}

.lab-modal.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--neon-red);
}

.modal-icon {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
}

.modal-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.modal-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.modal-stats {
  margin-bottom: var(--space-md);
}

.modal-stat {
  margin-bottom: var(--space-sm);
}

.modal-stat .stat-label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  text-align: left;
}

.stat-bar {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.stat-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  border-radius: var(--radius-full);
}

/* Experiments Section */
.experiments-section {
  max-width: 1200px;
  margin: 0 auto;
}

.experiments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.experiment-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-medium);
}

.experiment-card:hover {
  transform: translateY(-5px);
  border-color: var(--neon-blue);
}

.experiment-visual {
  height: 120px;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.exp-animation {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  position: relative;
}

.chemistry-exp {
  background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
  animation: bubbles 2s ease-in-out infinite;
}

.dna-exp {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-red));
  animation: dnaRotate 3s linear infinite;
}

.physics-exp {
  background: linear-gradient(135deg, var(--neon-yellow), var(--neon-red));
  animation: pendulum 2s ease-in-out infinite;
}

@keyframes bubbles {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

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

@keyframes pendulum {
  0%,
  100% {
    transform: rotate(-15deg);
  }
  50% {
    transform: rotate(15deg);
  }
}

.experiment-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-xs);
}

.experiment-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

/* =====================================================
   ABOUT PAGE
   ===================================================== */

.mission-section {
  max-width: 1200px;
  margin: 0 auto;
}

.mission-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.mission-text h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mission-text p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.mission-values {
  display: flex;
  gap: var(--space-md);
}

.value-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.value-icon {
  font-size: 1.5rem;
}

.value-item span {
  font-weight: 600;
  color: var(--text-primary);
}

.mission-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hologram-frame {
  width: 300px;
  height: 300px;
  border: 2px solid var(--neon-blue);
  border-radius: var(--radius-lg);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-primary), inset var(--glow-primary);
  animation: hologramPulse 3s ease-in-out infinite;
}

@keyframes hologramPulse {
  0%,
  100% {
    box-shadow: var(--glow-primary), inset 0 0 20px rgba(0, 212, 255, 0.1);
  }
  50% {
    box-shadow: 0 0 40px var(--neon-blue), inset 0 0 40px rgba(0, 212, 255, 0.2);
  }
}

.hologram-content {
  width: 80%;
  height: 80%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(170, 0, 255, 0.1));
  border-radius: var(--radius-md);
  animation: hologramRotate 10s linear infinite;
}

@keyframes hologramRotate {
  0% {
    transform: rotateY(0deg);
  }
  100% {
    transform: rotateY(360deg);
  }
}

/* Team Section */
.team-section {
  max-width: 1200px;
  margin: 0 auto;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.team-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-medium);
}

.team-card:hover {
  transform: translateY(-10px);
  border-color: var(--neon-blue);
}

.avatar-bubble {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto var(--space-sm);
}

.avatar-3d {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  border-radius: 50%;
  position: relative;
  z-index: 2;
}

.bubble-ring {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border: 2px solid var(--neon-blue);
  border-radius: 50%;
  animation: ringPulse 2s ease-in-out infinite;
  opacity: 0.5;
}

@keyframes ringPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.3;
  }
}

.team-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.team-role {
  color: var(--neon-blue);
  font-size: 0.9rem;
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-xs);
}

.team-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Timeline Section */
.timeline-section {
  max-width: 800px;
  margin: 0 auto;
}

.timeline {
  position: relative;
  margin-top: var(--space-lg);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--neon-blue), var(--neon-purple));
}

.timeline-item {
  position: relative;
  padding: var(--space-md);
  width: 50%;
  margin-bottom: var(--space-md);
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: var(--space-lg);
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: var(--space-lg);
}

.timeline-dot {
  position: absolute;
  top: 50%;
  width: 20px;
  height: 20px;
  background: var(--neon-blue);
  border-radius: 50%;
  box-shadow: var(--glow-primary);
  z-index: 10;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
}

.timeline-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.timeline-year {
  display: inline-block;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* =====================================================
   CONTACT PAGE
   ===================================================== */

.contact-section {
  padding-top: 0;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.contact-form-wrapper {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

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

.form-group {
  position: relative;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--neon-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

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

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

select.form-input {
  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='%23ffffff' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
}

.input-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  transition: width var(--transition-medium);
}

.form-input:focus + .input-glow {
  width: 100%;
}

/* Contact Info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.info-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  transition: all var(--transition-medium);
}

.info-card:hover {
  border-color: var(--neon-blue);
  transform: translateX(10px);
}

.info-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.floating-icon {
  animation: iconFloat 3s ease-in-out infinite;
}

.info-icon svg {
  stroke: white;
}

.info-card h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.social-link {
  width: 50px;
  height: 50px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
}

/* Responsive tweaks for Contact page */
@media (max-width: 900px) {
  .contact-container {
    grid-template-columns: 1fr;
    padding: 0 1rem;
    gap: var(--space-md);
  }

  .contact-form-wrapper {
    padding: var(--space-md);
    border-radius: 12px;
  }

  .contact-info {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .info-card {
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 180px;
  }

  .social-links {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .contact-container {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 0 0.5rem;
  }

  .contact-form-wrapper {
    padding: 1rem;
    border-radius: 10px;
  }

  .form-input {
    padding: 0.9rem;
    font-size: 1rem;
  }

  textarea.form-input {
    min-height: 140px;
  }

  .btn-large {
    width: 100%;
    justify-content: center;
    padding: 0.95rem 1rem;
  }

  .info-card {
    flex: 1 1 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .info-icon {
    width: 44px;
    height: 44px;
  }

  .nav-container {
    padding: 0.75rem 1rem;
  }
}

/* Map Section */
.map-section {
  padding: var(--space-lg) var(--space-md);
}

.map-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 300px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

.map-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.map-pin {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.pin-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(0, 212, 255, 0.3);
  border-radius: 50%;
  animation: pinPulse 2s ease-in-out infinite;
}

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

.pin-icon {
  font-size: 3rem;
  position: relative;
  z-index: 10;
}

.map-overlay p {
  color: var(--text-secondary);
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-lg) var(--space-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo-text,
.footer-brand .logo-accent {
  font-size: 2rem;
  font-weight: 800;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

.footer-links {
  display: contents;
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

/* Largest breakpoint adjustments (tablets & small laptops) */
@media (max-width: 1024px) {
  .lab-container {
    grid-template-columns: 1fr;
  }

  .lab-controls {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .lab-equipment {
    order: -1;
  }

  .equipment-list {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .hero-section {
    padding: var(--space-lg) var(--space-sm);
  }

  /* Hide decorative floating panels on smaller screens */
  .floating-panel {
    display: none;
  }

  /* Switch to mobile nav */
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  /* support both .active and .open toggles */
  .mobile-menu.active,
  .mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
  }

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

/* Medium breakpoint (phones in landscape / small tablets) */
@media (max-width: 768px) {
  .hero-title {
    font-size: clamp(2.5rem, 12vw, 5rem);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

  .features-grid,
  .courses-grid,
  .experiments-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

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

  .nav-container {
    padding: 0.75rem 1rem;
  }

  .logo-text,
  .logo-accent {
    font-size: 1.25rem;
  }

  .panel-value {
    font-size: 1.2rem;
  }
}

/* Small phones */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero-title {
    font-size: clamp(2rem, 14vw, 3.5rem);
  }

  .nav-controls {
    gap: 0.5rem;
  }

  .mobile-menu {
    top: 60px;
    padding: 1.5rem;
  }

  .mobile-nav-links a {
    font-size: 1rem;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  /* Stack timeline items vertically */
  .timeline {
    margin-top: var(--space-md);
  }

  .timeline::before {
    left: 10px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 50px;
    text-align: left;
    left: 0 !important;
  }

  .timeline-item .timeline-dot {
    left: 0 !important;
    right: auto !important;
    transform: translateX(-50%);
  }

  .loader-content p {
    margin-top: 80px;
    font-size: 0.85rem;
  }

  .hologram-frame {
    width: 220px;
    height: 220px;
  }

  .hero-section,
  section {
    padding: var(--space-lg) var(--space-sm);
  }
}

/* Ensure the Three.js canvas covers viewport correctly on all devices */
#three-canvas {
  width: 100vw;
  height: 100vh;
}

/* Touch target improvements */
input.form-input,
textarea.form-input,
select.form-input,
.btn {
  -webkit-tap-highlight-color: transparent;
}
