@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Orbitron:wght@400;500;700;900&display=swap');

:root {
  --color-bg-deep: #080808;
  --color-bg-card: rgba(18, 18, 18, 0.65);
  --color-lime: #8CE600;
  --color-lime-glow: rgba(140, 230, 0, 0.45);
  --color-lime-dim: #76C700;
  --color-silver: #E5E5E5;
  --color-platinum: #FFFFFF;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-bg-deep);
  color: var(--color-silver);
  overflow-x: hidden;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--color-lime) #121212;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0d0d0d;
}
::-webkit-scrollbar-thumb {
  background: #1a1a1a;
  border-radius: 4px;
  border: 2px solid #0d0d0d;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-lime);
  box-shadow: 0 0 10px var(--color-lime);
}

h1, h2, h3, h4, h5, h6, .font-futuristic {
  font-family: 'Orbitron', sans-serif;
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--color-bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.glass-panel-glow {
  background: rgba(18, 18, 18, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(140, 230, 0, 0.15);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(140, 230, 0, 0.05);
}

.glass-panel-glow:hover {
  border-color: var(--color-lime);
  box-shadow: 0 0 25px rgba(140, 230, 0, 0.25), inset 0 0 16px rgba(140, 230, 0, 0.1);
  transform: translateY(-5px);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Metallic text & borders */
.metallic-text {
  background: linear-gradient(135deg, #ffffff 0%, #a6a6a6 50%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.metallic-border {
  border: 1px solid;
  border-image: linear-gradient(135deg, #ffffff, rgba(255,255,255,0.2), #a6a6a6, rgba(255,255,255,0.1), #ffffff) 1;
}

/* Glow Effects */
.lime-glow-text {
  text-shadow: 0 0 8px rgba(140, 230, 0, 0.6), 0 0 20px rgba(140, 230, 0, 0.3);
}

.lime-glow-btn {
  position: relative;
  transition: all 0.3s ease;
}

.lime-glow-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-lime), #aeff00);
  z-index: -1;
  opacity: 0.85;
  transition: all 0.3s ease;
}

.lime-glow-btn:hover::before {
  opacity: 1;
  filter: blur(8px);
}

.lime-glow-btn:hover {
  box-shadow: 0 0 20px var(--color-lime);
  transform: scale(1.03);
}

/* Logo Animation States */
.logo-img {
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.05));
}
#header-logo-container:hover .logo-img {
  transform: scale(1.08) rotate(2deg);
  filter: drop-shadow(0 0 12px var(--color-lime));
}

@keyframes logoStrokePulse {
  0% { filter: drop-shadow(0 0 2px var(--color-lime-glow)); }
  50% { filter: drop-shadow(0 0 10px var(--color-lime)); }
  100% { filter: drop-shadow(0 0 2px var(--color-lime-glow)); }
}

/* Background Particle Canvas styling */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Floating animation details */
.floating-element-1 {
  animation: float1 8s ease-in-out infinite;
}
.floating-element-2 {
  animation: float2 10s ease-in-out infinite;
}
.floating-element-3 {
  animation: float3 12s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
}

@keyframes float2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-25px) rotate(-3deg); }
}

@keyframes float3 {
  0%, 100% { transform: translateY(0) translatex(0); }
  50% { transform: translateY(-10px) translatex(10px); }
}

/* Horizontal scrolling marquee for Google reviews */
.marquee-container {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  width: 100%;
}

.marquee-content {
  display: inline-flex;
  gap: 2rem;
  animation: marquee 30s linear infinite;
}

.marquee-container:hover .marquee-content {
  animation-play-state: paused;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Custom interactive HUD circles */
.hud-circle {
  border: 1px dashed rgba(140, 230, 0, 0.2);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
  animation: spinHUD 20s linear infinite;
}

.hud-circle-reverse {
  border: 1px dotted rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
  animation: spinHUDReverse 30s linear infinite;
}

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

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

/* Perspective styling for 3D layout components */
.perspective-container {
  perspective: 1200px;
}

.tilt-wrapper {
  transition: transform 0.1s ease-out;
  transform-style: preserve-3d;
}

/* Input Focus Glows */
.glowing-input:focus {
  outline: none;
  border-color: var(--color-lime);
  box-shadow: 0 0 15px rgba(140, 230, 0, 0.35);
}

/* Background gradient glows */
.bg-glow-radial {
  background: radial-gradient(circle at 50% 50%, rgba(140, 230, 0, 0.08) 0%, transparent 60%);
}

.bg-glow-silver {
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
}

/* Active Nav Link Highlight */
.nav-link-active {
  color: var(--color-lime) !important;
  text-shadow: 0 0 8px rgba(140, 230, 0, 0.4);
}
.nav-link-active::after {
  width: 100% !important;
}

/* Filter buttons for Feedback Board */
.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.filter-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(140, 230, 0, 0.3);
}
.filter-btn.active {
  background: rgba(140, 230, 0, 0.1);
  border-color: var(--color-lime);
  color: var(--color-lime);
  box-shadow: 0 0 15px rgba(140, 230, 0, 0.15);
}

/* Curriculum Accordion Styling */
.curriculum-accordion {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.curriculum-trigger {
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  transition: color 0.3s ease;
}
.curriculum-trigger:hover {
  color: var(--color-lime);
}
.curriculum-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.curriculum-content.open {
  max-height: 500px;
}

/* Timeline elements */
.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  border-left: 1px dashed rgba(255, 255, 255, 0.1);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-lime);
  box-shadow: 0 0 8px var(--color-lime);
}

/* Custom Alert Modals */
.feedback-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 8, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s ease;
}
.feedback-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.feedback-modal-box {
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.feedback-modal-overlay.open .feedback-modal-box {
  transform: scale(1);
}