:root {
  --bg: #fdf3e1;
  --ink: #3a2a1e;
  --muted: #8a7460;
  --panel: #fffaf0;
  --accent: #e0445a;
  --accent-ink: #ffffff;
  --border: #e6d3b3;
}

:root:not([data-theme="light"]) {
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #1f1812;
  --ink: #f5e9d6;
  --muted: #b8a58c;
  --panel: #2c231b;
  --accent: #ff6b7f;
  --accent-ink: #1f1812;
  --border: #4a3b2c;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1f1812;
    --ink: #f5e9d6;
    --muted: #b8a58c;
    --panel: #2c231b;
    --accent: #ff6b7f;
    --accent-ink: #1f1812;
    --border: #4a3b2c;
  }
}

[hidden] {
  display: none !important;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  justify-content: center;
  padding: 16px;
}

.game {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.stats {
  display: flex;
  gap: 8px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 10px;
  min-width: 64px;
  text-align: center;
}

.label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
}

.value {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.board-wrap {
  position: relative;
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

#board {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
  cursor: pointer;
}

.next {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(255, 250, 240, 0.85);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 6px 6px;
  text-align: center;
  pointer-events: none;
}

.next canvas {
  display: block;
  width: 52px;
  height: 52px;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 20, 12, 0.55);
}

.card {
  background: var(--panel);
  color: var(--ink);
  border-radius: 14px;
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.card p {
  margin: 0 0 14px;
}

button {
  font: inherit;
  font-weight: 700;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 10px;
  padding: 10px 18px;
  cursor: pointer;
}

#mute {
  padding: 6px 10px;
  font-size: 0.8rem;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--border);
}

button:focus-visible {
  outline: 3px solid var(--muted);
  outline-offset: 2px;
}

.hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}