*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-deep: #f0f4f8;
  --bg-space: #f8fafc;
  --bg-card: rgba(255,255,255,0.75);
  --glass-border: rgba(0,0,0,0.06);
  --glass-shadow: rgba(0,0,0,0.06);
  --accent-cyan: #0891b2;
  --accent-blue: #4a6cf7;
  --accent-purple: #7c3aed;
  --accent-magenta: #c026d3;
  --accent-gold: #d97706;
  --accent-orange: #ea580c;
  --text-primary: #0f172a;
  --text-secondary: rgba(15,23,42,0.65);
  --text-muted: rgba(15,23,42,0.4);
  --font-display: 'Orbitron', monospace;
  --font-body: 'Space Grotesk', sans-serif;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  background-image: radial-gradient(ellipse at 20% 50%, rgba(124,58,237,0.04) 0%, transparent 50%),
                    radial-gradient(ellipse at 80% 20%, rgba(8,145,178,0.04) 0%, transparent 50%),
                    radial-gradient(ellipse at 50% 80%, rgba(192,38,211,0.03) 0%, transparent 50%);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.7;
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent-purple); border-radius: 3px; opacity: 0.5; }

#space-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

#preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
#preloader .loader-text { -webkit-text-fill-color: initial; color: var(--accent-purple); }
.loader-ring {
  width: 80px; height: 80px;
  border: 3px solid transparent;
  border-top-color: var(--accent-cyan);
  border-right-color: var(--accent-purple);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  position: relative;
}
.loader-ring::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 3px solid transparent;
  border-bottom-color: var(--accent-magenta);
  border-left-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 0.6s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text {
  margin-top: 24px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 6px;
}

section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  opacity: 0.7;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}
.section-title .highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 700px;
  margin-bottom: 48px;
  line-height: 1.8;
}
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}