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

:root {
  --bg-deep: #0a0a0f;
  --bg-card: #111118;
  --bg-card-hover: #1a1a24;
  --accent-cyan: #00d4ff;
  --accent-purple: #a855f7;
  --accent-gold: #fbbf24;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --border-subtle: rgba(255,255,255,0.06);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

#starfield {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 72px;
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.logo {
  font-family: 'Orbitron', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 32px; height: 32px;
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon::after {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-cyan);
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-cyan);
  transition: width 0.3s ease;
}

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

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

.nav-links a.active {
  color: var(--accent-cyan);
}

.nav-links a.active::after {
  width: 100%;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero-tagline {
  font-family: 'Orbitron', monospace;
  font-size: 0.75rem;
  letter-spacing: 6px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero h1 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.7s forwards;
}

.hero-cta {
  display: flex;
  gap: 16px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.9s forwards;
}

.btn {
  padding: 14px 36px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0891b2);
  color: #000;
  border: none;
  box-shadow: 0 4px 24px rgba(0,212,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,212,255,0.4);
}

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

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  animation: bounce 2s infinite;
}

.scroll-hint .arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
}

/* ===== SECTIONS ===== */
.section {
  position: relative;
  z-index: 1;
  padding: 120px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-label {
  font-family: 'Orbitron', monospace;
  font-size: 0.7rem;
  letter-spacing: 4px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== THEORY CARDS ===== */
.theories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.theory-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 40px 32px;
  cursor: pointer;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.theory-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.theory-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.theory-card:hover::before {
  transform: scaleX(1);
}

.theory-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.15);
}

.theory-card:nth-child(2) .theory-icon {
  background: rgba(168,85,247,0.08);
  border-color: rgba(168,85,247,0.15);
}

.theory-card:nth-child(3) .theory-icon {
  background: rgba(251,191,36,0.08);
  border-color: rgba(251,191,36,0.15);
}

.theory-card:nth-child(4) .theory-icon {
  background: rgba(244,63,94,0.08);
  border-color: rgba(244,63,94,0.15);
}

.theory-card:nth-child(5) .theory-icon {
  background: rgba(34,197,94,0.08);
  border-color: rgba(34,197,94,0.15);
}

.theory-card:nth-child(6) .theory-icon {
  background: rgba(236,72,153,0.08);
  border-color: rgba(236,72,153,0.15);
}

.theory-card h3 {
  font-family: 'Orbitron', monospace;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.theory-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.theory-card .read-more {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s;
}

.theory-card:hover .read-more {
  gap: 12px;
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 48px;
  opacity: 0;
  transform: translateX(20px);
  transition: all 0.6s ease;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0,212,255,0.4);
}

.timeline-year {
  font-family: 'Orbitron', monospace;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.timeline-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== QUOTE ===== */
.quote-section {
  text-align: center;
  padding: 100px 24px;
  position: relative;
}

.quote-section::before {
  content: '"';
  font-family: 'Orbitron', monospace;
  font-size: 8rem;
  color: rgba(0,212,255,0.05);
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
}

.quote-text {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 500;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto 24px;
  color: var(--text-primary);
}

.quote-author {
  color: var(--text-muted);
  font-size: 0.95rem;
  letter-spacing: 2px;
}

/* ===== ABOUT ===== */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 24px;
}

/* ===== FOOTER ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 48px 40px;
  text-align: center;
}

.footer-logo {
  font-family: 'Orbitron', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.3s;
}

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

.footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .navbar {
    padding: 0 24px;
  }
  .nav-links {
    display: none;
  }
  .section {
    padding: 80px 24px;
  }
  .theories-grid {
    grid-template-columns: 1fr;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
    padding: 0 24px;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
}