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

:root {
  --bus-black: #0a0906;
  --bus-dark: #111009;
  --bus-warm: #1a1710;
  --bus-panel: #1e1c14;
  --bus-border: #2a2820;
  --terminal-green: #7fff4f;
  --terminal-dim: #3a7a20;
  --terminal-glow: rgba(127,255,79,0.15);
  --amber: #ffb347;
  --amber-dim: #7a4a10;
  --cream: #e8dfc8;
  --cream-dim: #6a6050;
  --rust: #c0392b;
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bus-black);
  color: var(--cream);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Ambient grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.5;
}

/* Terminal text */
.mono { font-family: var(--font-mono); }
.display { font-family: var(--font-display); }

/* Green terminal glow effect */
.terminal {
  font-family: var(--font-mono);
  color: var(--terminal-green);
  text-shadow: 0 0 8px var(--terminal-green);
}

/* Shared game container */
.game-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bus-dark);
  position: relative;
}

/* Platform header bar */
.platform-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bus-black);
  border-bottom: 1px solid var(--bus-border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--terminal-green);
  text-shadow: 0 0 6px var(--terminal-green);
  letter-spacing: 0.1em;
}

.platform-bar a {
  color: var(--terminal-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.platform-bar a:hover { color: var(--terminal-green); }

/* Game viewport */
.game-viewport {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}

/* Buttons */
.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 10px 20px;
  border: 1px solid var(--terminal-green);
  background: transparent;
  color: var(--terminal-green);
  cursor: pointer;
  transition: all 0.15s;
  text-shadow: 0 0 6px var(--terminal-green);
}

.btn:hover {
  background: var(--terminal-glow);
  box-shadow: 0 0 12px var(--terminal-glow);
}

.btn-amber {
  border-color: var(--amber);
  color: var(--amber);
  text-shadow: 0 0 6px var(--amber);
}

.btn-amber:hover {
  background: rgba(255,179,71,0.1);
  box-shadow: 0 0 12px rgba(255,179,71,0.2);
}

/* Score/status panel */
.status-panel {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--terminal-dim);
  letter-spacing: 0.1em;
  padding: 8px 12px;
  border: 1px solid var(--bus-border);
  background: var(--bus-panel);
}

.status-panel .value {
  color: var(--terminal-green);
  text-shadow: 0 0 6px var(--terminal-green);
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bus-black); }
::-webkit-scrollbar-thumb { background: var(--bus-border); }

/* Animations */
@keyframes flicker {
  0%, 95%, 100% { opacity: 1; }
  96% { opacity: 0.8; }
  97% { opacity: 1; }
  98% { opacity: 0.6; }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes pulse-green {
  0%, 100% { text-shadow: 0 0 6px var(--terminal-green); }
  50% { text-shadow: 0 0 16px var(--terminal-green), 0 0 30px var(--terminal-dim); }
}

.flicker { animation: flicker 8s infinite; }
.pulse { animation: pulse-green 2s ease-in-out infinite; }