:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --text: #1d1d1b;
  --muted: #6b6a65;
  --border: #dcdad3;
  --accent: #2f5bd3;
  --accent-text: #ffffff;
  --win: #1f7a45;
  --lose: #b3261e;
  --board: #16161a;
  --grid: #24242b;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121214;
    --surface: #1c1c20;
    --text: #ececea;
    --muted: #9b9a95;
    --border: #2e2e34;
    --accent: #6d8ff0;
    --accent-text: #0e0e10;
    --win: #4fc27f;
    --lose: #f2786f;
    --board: #0b0b0d;
    --grid: #1b1b20;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121214;
  --surface: #1c1c20;
  --text: #ececea;
  --muted: #9b9a95;
  --border: #2e2e34;
  --accent: #6d8ff0;
  --accent-text: #0e0e10;
  --win: #4fc27f;
  --lose: #f2786f;
  --board: #0b0b0d;
  --grid: #1b1b20;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 960px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.75rem; line-height: 1.2; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 0; }
p { margin: 0 0 12px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

button, select, input {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
}
button { cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: 0.5; cursor: default; }

/* Landing page */
.games { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 24px; }
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  color: inherit;
  text-decoration: none;
}
a.card:hover { border-color: var(--accent); }
.card.soon { opacity: 0.55; }
.card p { margin: 6px 0 0; }

/* Game page */
.top { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; }
.controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin: 16px 0; }
.controls label { display: flex; flex-direction: column; gap: 2px; font-size: 0.8rem; color: var(--muted); }
.controls input { width: 7.5em; }
.controls select { max-width: 100%; }
.arena { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.player {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  min-width: 0;
}
.player header { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.player .stats { font-variant-numeric: tabular-nums; }
.player .body { display: flex; gap: 10px; align-items: flex-start; }
.player canvas.board { width: 100%; max-width: 260px; aspect-ratio: 1 / 2; display: block; border-radius: 6px; background: var(--board); }
.side { display: flex; flex-direction: column; gap: 4px; font-size: 0.8rem; color: var(--muted); }
.side canvas { width: 56px; height: 56px; border-radius: 6px; background: var(--board); }
.player.out canvas.board { opacity: 0.45; }
.status { min-height: 1.5em; margin: 16px 0 8px; font-weight: 600; font-size: 1.1rem; }
.status.win { color: var(--win); }
.status.lose { color: var(--lose); }
.pad { display: none; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 12px; }
.pad button { padding: 14px 0; font-size: 1.5rem; line-height: 1; touch-action: manipulation; user-select: none; }
@media (pointer: coarse) { .pad { display: grid; } }
.keys { margin-top: 12px; }
kbd { border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; font-size: 0.8rem; background: var(--surface); }
.overlay { position: relative; }
.countdown {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 4rem; font-weight: 700; color: #fff; text-shadow: 0 2px 12px #000; pointer-events: none;
}

@media (max-width: 560px) {
  .arena { gap: 8px; }
  .player { padding: 8px; }
  .player header { flex-direction: column; gap: 0; }
  .player .stats { font-size: 0.8rem; color: var(--muted); }
  .player .body { flex-direction: column; }
  .side { flex-direction: row; align-items: center; }
  .side canvas { width: 40px; height: 40px; }
  h1 { font-size: 1.4rem; }
}