:root {
  --bg-base: #0a0e1a;
  --bg-surface: rgba(15, 25, 45, 0.8);
  --bg-surface-hover: rgba(25, 35, 60, 0.9);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(168, 85, 247, 0.3);
  --cyan: #a855f7;
  --cyan-glow: rgba(168, 85, 247, 0.18);
  --pink: #ff266d;
  --pink-glow: rgba(255, 38, 109, 0.2);
  --emerald: #3ddc97;
  --emerald-glow: rgba(61, 220, 151, 0.2);
  --amber: #ffb700;
  --amber-glow: rgba(255, 183, 0, 0.2);
  --text-main: #e8ecf5;
  --text-muted: #6b7a9c;
  --text-dim: #48566e;
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background:
    radial-gradient(circle at 10% 20%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 90% 80%, rgba(255, 38, 109, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(61, 220, 151, 0.04) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

header.site-header {
  padding: 32px 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 56px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(255, 38, 109, 0.2));
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 0 20px var(--cyan-glow);
}

.brand-titles h1 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #fff;
  text-transform: uppercase;
}

.brand-titles span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-links {
  display: flex;
  gap: 12px;
}

.badge-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-main);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.badge-link:hover {
  background: rgba(168, 85, 247, 0.1);
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-1px);
}

.hero {
  text-align: center;
  padding: 40px 0 60px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h2 span {
  background: linear-gradient(135deg, var(--cyan) 0%, #a855f7 50%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.metrics-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 50px;
}

.metric-pill {
  padding: 10px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 140px;
}

.metric-pill b {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}

.metric-pill span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Experiment Controls */
.experiment-controls {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  padding: 32px;
  margin-bottom: 48px;
}

.experiment-controls .card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.experiment-controls h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: #fff;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 20px 0 4px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.field input,
.field select {
  width: 100%;
  padding: 10px 12px;
  font-size: 13px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.28);
  color: #fff;
  font-family: inherit;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-glow);
}

.experiment-controls button {
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.experiment-controls .btn-launch {
  background: var(--cyan);
  color: #050a12;
}

.experiment-controls .btn-launch:hover {
  background: #c873ff;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
  transform: translateY(-1px);
}

/* Results */
.results {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  padding: 32px;
}

.results .card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.results h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: #fff;
}

#canvas,
#arena {
  display: block;
  width: 100%;
  background: #0a0e1a;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

#canvas { height: 400px; }
#arena { height: 420px; }

.canvas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.canvas-grid figure { margin: 0; }

.canvas-grid figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
}

.flight-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 4px;
}

.ghost-btn {
  padding: 9px 16px;
  border-radius: 9px;
  border: 1px solid var(--border-glow);
  background: rgba(168, 85, 247, 0.1);
  color: #d6b3ff;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ghost-btn:hover {
  background: rgba(168, 85, 247, 0.22);
  transform: translateY(-1px);
}

.caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

#telemetry {
  margin-top: 12px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  color: #c084fc;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  white-space: pre-wrap;
}

footer.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 24px 0 34px;
  margin-top: 8px;
  color: var(--text-dim);
  font-size: 12.5px;
  font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 960px) {
  .canvas-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  header.site-header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
  .experiment-controls,
  .results {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .metrics-row { gap: 12px; }
  .metric-pill { min-width: 110px; padding: 8px 14px; }
  #canvas { height: 340px; }
}