*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #0b0d1a;
  --panel: #151935;
  --text: #e8ebff;
  --muted: #8a90b8;
  --accent: #5ee3ff;
  --side: clamp(64px, 18vw, 140px);
  --footer: 22px;
}

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, sans-serif;
  -webkit-user-select: none;
  user-select: none;
}

:lang(fa) body, body:lang(fa) { font-family: Vazirmatn, system-ui, sans-serif; }

.game {
  display: grid;
  grid-template-columns: var(--side) auto var(--side);
  justify-content: center;
  align-items: start;
  gap: 8px;
  height: calc(100vh - var(--footer));
  height: calc(100dvh - var(--footer));
  padding: 8px;
}

.side { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.side h2 {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mini { width: 100%; background: var(--panel); border-radius: 6px; display: block; }
.mini.hold { aspect-ratio: 4 / 3; }
.mini.next { aspect-ratio: 4 / 13; max-height: 45dvh; object-fit: contain; }

.pad {
  font: inherit;
  font-size: 0.85rem;
  padding: 10px 4px;
  border: 1px solid #2c3366;
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  touch-action: manipulation;
}

.stats { margin: 0; display: grid; gap: 2px; }
.stats dt { font-size: 0.75rem; color: var(--muted); }
.stats dd { margin: 0 0 6px; font-size: 1.1rem; font-weight: 700; font-variant-numeric: tabular-nums; }

.board-wrap {
  position: relative;
  aspect-ratio: 10 / 22;
  height: min(calc(100dvh - 16px - var(--footer)),calc((100vw - 2 * var(--side) - 32px) * 2.2));
  touch-action: none;
}

#board {
  width: 100%;
  height: 100%;
  display: block;
  background: var(--panel);
  border-radius: 6px;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 12px;
  background: rgba(11, 13, 26, 0.94);
  border-radius: 6px;
  overflow: auto;
  touch-action: pan-y;
}
.overlay[hidden] { display: none; }

.screen { text-align: center; display: grid; gap: 10px; justify-items: center; }
.screen[hidden] { display: none; }
.screen h1 { margin: 0; font-size: 1.8rem; color: var(--accent); }
.screen h2 { margin: 0; font-size: 0.9rem; color: var(--muted); }
.screen p { margin: 0; }

.controls { list-style: none; margin: 0; padding: 0; font-size: 0.72rem; color: var(--muted); }

.screen button {
  font: inherit;
  font-weight: 700;
  padding: 10px 24px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  cursor: pointer;
}

.screen button.toggle {
  font-weight: 400;
  font-size: 0.85rem;
  padding: 6px 16px;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.overlay.fade-in { animation: fade-in 300ms ease-out; }
@keyframes fade-in { from { opacity: 0; } }

.lang { color: var(--accent); font-size: 0.9rem; }

.site-footer {
  position: fixed;
  inset: auto 0 0;
  height: var(--footer);
  line-height: var(--footer);
  text-align: center;
  font-size: 0.7rem;
  color: var(--muted);
}
.site-footer a { color: var(--accent); }