/* style.css — Asteroid Drift */
:root {
  --bg: #0a0a1f;
  --panel: rgba(20, 16, 51, 0.78);
  --panel-border: rgba(140, 130, 220, 0.25);
  --accent: #6cf0ff;
  --accent2: #ff8a3d;
  --text: #eef2ff;
  --muted: #9aa3c7;
  color-scheme: dark;
}
html[data-theme="light"] {
  --bg: #e9ecf8;
  --panel: rgba(255,255,255,0.92);
  --panel-border: rgba(60,50,120,0.18);
  --accent: #2b7fff;
  --accent2: #e8651a;
  --text: #1a1f3a;
  --muted: #5a6285;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}
#root { position: relative; width: 100%; height: 100%; }

#game {
  position: absolute; inset: 0;
  display: block;
  touch-action: none;
}

/* HUD */
#hud {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  pointer-events: none;
  z-index: 5;
}
.hud-block {
  display: flex; flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 6px 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  min-width: 64px;
}
.hud-block.lives { text-align: right; }
.hud-label {
  font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted);
}
.hud-value {
  font-size: 20px; font-weight: 700; color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.hud-block.lives .hud-value { color: var(--accent2); }

/* Touch controls */
.touch-controls {
  position: absolute; bottom: 18px; left: 18px;
  z-index: 6;
  display: none;
}
.dpad {
  position: relative;
  width: 150px; height: 150px;
}
.tbtn {
  position: absolute;
  width: 50px; height: 50px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  border-radius: 12px;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
  transition: transform .08s, background .15s;
}
.tbtn:active { transform: scale(0.92); background: var(--accent); color: #0a0a1f; }
.tbtn.up    { top: 0; left: 50px; }
.tbtn.left  { top: 50px; left: 0; }
.tbtn.right { top: 50px; left: 100px; }
.tbtn.down  { top: 100px; left: 50px; }

/* Fire button (touch) */
.fire-btn {
  position: absolute;
  bottom: 28px; right: 24px;
  width: 78px; height: 78px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--accent);
  font-size: 30px;
  display: none;
  align-items: center; justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
  z-index: 6;
  transition: transform .08s, background .15s;
  touch-action: none;
}
.fire-btn:active { transform: scale(0.92); background: var(--accent); color: #0a0a1f; }

@media (pointer: coarse) {
  .touch-controls { display: block; }
  .fire-btn { display: flex; }
}

/* Overlay */
.overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at center, rgba(10,10,31,0.35), rgba(10,10,31,0.85));
  z-index: 10;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
html[data-theme="light"] .overlay {
  background: radial-gradient(circle at center, rgba(233,236,248,0.4), rgba(233,236,248,0.9));
}
.overlay.show { opacity: 1; pointer-events: auto; }
.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 32px 36px;
  text-align: center;
  max-width: 90%;
  width: 380px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}
.panel h1 {
  margin: 0 0 8px;
  font-size: 30px; letter-spacing: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.panel p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px; line-height: 1.5;
}
.keys {
  display: flex; flex-direction: column; gap: 6px;
  margin-bottom: 22px;
  font-size: 13px; color: var(--muted);
}
.keys span { display: flex; gap: 6px; align-items: center; justify-content: center; }
kbd {
  display: inline-block;
  background: rgba(140,130,220,0.15);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 2px 8px;
  font-family: inherit;
  font-size: 12px;
  color: var(--text);
}
.primary {
  background: linear-gradient(90deg, var(--accent), #4ac8ff);
  color: #0a0a1f;
  border: none;
  border-radius: 12px;
  padding: 13px 28px;
  font-size: 15px; font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: transform .1s, box-shadow .2s;
  box-shadow: 0 8px 24px rgba(108,240,255,0.3);
}
.primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(108,240,255,0.45); }
.primary:active { transform: translateY(0); }
html[data-theme="light"] .primary { color: #fff; }