:root {
  color-scheme: dark;
  --bg: #171713;
  --panel: #23251f;
  --panel-2: #2d3028;
  --text: #f3f0e7;
  --muted: #b7baaa;
  --accent: #79d2b6;
  --accent-2: #f1c45b;
  --danger: #e36b5c;
  --line: rgba(255, 255, 255, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 10%, rgba(121, 210, 182, 0.16), transparent 28rem),
    radial-gradient(circle at 90% 12%, rgba(241, 196, 91, 0.13), transparent 24rem),
    var(--bg);
  color: var(--text);
}

body {
  min-height: 100svh;
  touch-action: none;
  user-select: none;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  min-height: 48px;
  padding: 0 18px;
}

button.primary {
  border-color: rgba(121, 210, 182, 0.48);
  background: #2f6c60;
}

.game-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  height: 100svh;
  padding: max(16px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
}

.top-bar,
.controls {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.eyebrow,
h1 {
  margin: 0;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(1.55rem, 7vw, 2.35rem);
  line-height: 1;
}

.stats {
  align-items: end;
  color: var(--muted);
  display: grid;
  flex: 0 0 auto;
  font-size: 0.92rem;
  font-weight: 800;
  gap: 4px;
  justify-items: end;
}

.board-wrap {
  align-self: center;
  aspect-ratio: 1;
  background: linear-gradient(145deg, #373629, #191a15);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  justify-self: center;
  max-height: 100%;
  max-width: 100%;
  overflow: hidden;
  position: relative;
  width: min(100%, 78svh);
}

canvas {
  display: block;
  height: 100%;
  width: 100%;
}

.message {
  align-items: center;
  background: rgba(23, 23, 19, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  bottom: 14px;
  color: var(--muted);
  display: grid;
  gap: 3px;
  left: 14px;
  line-height: 1.25;
  max-width: calc(100% - 28px);
  padding: 11px 13px;
  position: absolute;
  right: 14px;
  transition: opacity 180ms ease, transform 180ms ease;
}

.message strong {
  color: var(--text);
  font-size: 0.98rem;
}

.message span {
  font-size: 0.82rem;
}

.message.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.controls {
  display: grid;
  grid-template-columns: 1fr auto;
}

@media (min-width: 760px) {
  .game-shell {
    margin: 0 auto;
    max-width: 620px;
  }
}