:root {
  --bg: #0d1117;
  --card: #0d1117;
  --b: #30363d;
  --t: #c9d1d9;
  --t2: #484f58;
  --accent: #e3b341;
  --info: #58a6ff;
  --ign: #f57c20;
}
* { margin: 0; box-sizing: border-box; }
body {
  background: var(--bg);
  overflow: hidden;
  height: 100vh;
  cursor: crosshair;
  font-family: 'IBM Plex Mono', monospace;
}
#three { position: fixed; inset: 0; }
#hud {
  position: fixed; top: 0; left: 0; right: 0; z-index: 2;
  display: flex; justify-content: space-between;
  padding: 6px 12px;
  font: 9px 'IBM Plex Mono', monospace;
  color: var(--t2);
  pointer-events: none;
}
#banner {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  z-index: 3; pointer-events: none; text-align: center;
  transition: opacity 1s; opacity: 1;
}
#banner h1 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: clamp(24px, 6vw, 64px); font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 40px rgba(227, 179, 65, 0.3);
  letter-spacing: 2px;
}
#banner h2 {
  font: 14px 'IBM Plex Mono', monospace;
  color: var(--t2);
  margin-top: 4px;
  letter-spacing: 4px;
}
#banner .sub {
  font: 10px 'IBM Plex Mono', monospace;
  color: var(--b);
  margin-top: 8px;
}
#bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 2;
  height: 32px; display: flex; align-items: center;
  padding: 0 12px; gap: 8px;
  background: rgba(13, 17, 23, 0.9);
  border-top: 1px solid var(--b);
  font: 8px 'IBM Plex Mono', monospace;
  color: var(--t2);
}
#bar span { color: var(--accent); }
.bt {
  background: #161b22;
  border: 1px solid var(--b);
  color: var(--t2);
  font: 8px 'IBM Plex Mono', monospace;
  padding: 2px 10px;
  cursor: pointer;
  border-radius: 3px;
}
.bt:hover { border-color: var(--info); color: var(--info); }
.bt.on { color: #f85149; border-color: #f85149; }