:root {
  color-scheme: light dark;
  --bg: var(--tg-theme-bg-color, #fff);
  --fg: var(--tg-theme-text-color, #111);
  --muted: var(--tg-theme-hint-color, #888);
  --accent: var(--tg-theme-button-color, #2481cc);
  --accent-fg: var(--tg-theme-button-text-color, #fff);
  --cell: var(--tg-theme-secondary-bg-color, #f2f2f2);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font: 16px/1.4 system-ui, sans-serif; }
body { padding: 12px; max-width: 480px; margin: 0 auto; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; gap: 12px; }
#players { display: flex; gap: 8px; flex-wrap: wrap; }
.player { padding: 4px 10px; border-radius: 999px; background: var(--cell); font-size: 14px; }
.player.you { outline: 2px solid var(--accent); }
.player.turn { background: var(--accent); color: var(--accent-fg); }
#status { color: var(--muted); font-size: 14px; text-align: right; }
.board { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); gap: 8px; aspect-ratio: 1; margin: 0 0 12px; }
.board button {
  font: 700 clamp(40px, 15vw, 72px)/1 system-ui, sans-serif;
  background: var(--cell); color: var(--fg); border: 0; border-radius: 12px; cursor: pointer;
  min-width: 0; min-height: 0; padding: 0;
  display: flex; align-items: center; justify-content: center;
}
.board button:disabled { cursor: default; opacity: 0.85; }
.board button.x { color: #e74c3c; }
.board button.o { color: #3498db; }
#controls { display: flex; gap: 8px; margin-bottom: 12px; }
#controls button { flex: 1; padding: 10px 12px; border: 0; border-radius: 10px; background: var(--accent); color: var(--accent-fg); font-weight: 600; cursor: pointer; }
#controls button#leave { background: var(--cell); color: var(--fg); }
#lists { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
#lists h3 { margin: 0 0 4px; font-size: 13px; color: var(--muted); font-weight: 600; }
#lists ul { margin: 0; padding: 0; list-style: none; font-size: 14px; }
#lists li { padding: 2px 0; }
#lists li.you { font-weight: 700; }