:root {
  --bg: #f4efe6;
  --panel: #fffdf8;
  --ink: #353b38;
  --muted: #777f7a;
  --line: #d9d8cd;
  --accent: #5e806c;
  --accent-dark: #496957;
  --accent-ink: #ffffff;
  --brand: #5e806c;
  --brand-tint: #e9f0e9;
}

html, body { min-height: 100%; }
body { min-height: 100vh; overflow-x: hidden; }
button { touch-action: manipulation; }

.app-shell {
  width: min(100%, 900px);
  margin: 0 auto;
  padding: var(--sp-4) max(var(--sp-4), env(safe-area-inset-right)) max(var(--sp-5), env(safe-area-inset-bottom)) max(var(--sp-4), env(safe-area-inset-left));
}

.game-head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.game-title { margin: 0; font-size: var(--fs-6); letter-spacing: -0.02em; }
.game-subtitle { margin: 0; color: var(--muted); font-size: var(--fs-2); }
.game-head__stats { margin-left: auto; display: flex; gap: var(--sp-2); }
.stat-pill {
  min-width: 82px;
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  text-align: center;
}
.stat-pill span { display: block; color: var(--muted); font-size: var(--fs-0); text-transform: uppercase; letter-spacing: .08em; }
.stat-pill strong { font-size: var(--fs-5); font-variant-numeric: tabular-nums; }

.board-panel { padding: var(--sp-3); overflow: hidden; }
.canvas-wrap {
  position: relative;
  width: 100%;
  height: clamp(340px, 58vh, 560px);
  min-height: 340px;
}
#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: var(--r-md);
  outline: none;
  touch-action: none;
}
#game-canvas:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 55%, transparent); }

.status-line {
  min-height: 26px;
  margin: var(--sp-3) 0 0;
  color: var(--muted);
  text-align: center;
}
.status-line.won { color: var(--success); font-weight: 800; }

.control-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}
.level-bar { display: flex; gap: var(--sp-2); justify-content: center; margin-bottom: var(--sp-3); }
.level-btn[aria-current="true"], .shot-btn[aria-current="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.shot-panel { margin: 0 0 var(--sp-3); text-align: center; }
.shot-panel h2 { margin: 0 0 var(--sp-2); color: var(--muted); font-size: var(--fs-1); text-transform: uppercase; letter-spacing: .09em; }
.shot-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-2); }

.legend {
  margin-top: var(--sp-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: center;
  color: var(--muted);
  font-size: var(--fs-2);
}
.legend__item { display: inline-flex; align-items: center; gap: var(--sp-1); }
.legend__swatch { width: 18px; height: 18px; border-radius: 5px; border: 1px solid rgba(0,0,0,.14); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

@media (max-width: 560px) {
  .app-shell { padding-top: var(--sp-3); }
  .game-head { align-items: flex-start; }
  .game-head__stats { flex-direction: column; }
  .stat-pill { min-width: 70px; padding: var(--sp-1) var(--sp-2); }
  .canvas-wrap { height: 58vh; min-height: 390px; }
  .board-panel { padding: var(--sp-2); }
  .control-bar .btn { flex: 1 1 92px; }
  .shot-bar .btn { flex: 1 1 132px; }
}