:root {
  --sky: #d0f4f7;
  --ink: #2b2140;
  --dim: #5d5670;
  --gold: #f7c234;
  --gold-dark: #c98d12;
  --panel: #ffffff;
  --line: rgba(43, 33, 64, 0.12);
  --display: 'Lilita One', system-ui, sans-serif;
  --sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--sky); color: var(--ink); font: 400 15px/1.55 var(--sans); }
body { min-height: 100dvh; display: flex; flex-direction: column; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

.top { display: flex; align-items: center; gap: 20px; padding: 12px 20px; }
.logo { display: flex; align-items: center; gap: 10px; font: 400 28px/1 var(--display); letter-spacing: 0.02em; text-decoration: none; color: var(--ink); }
.logo img { width: 30px; height: 30px; }
.hud { display: flex; gap: 8px; flex-wrap: wrap; margin-left: auto; }
.hud span { background: var(--panel); border: 2px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 13px; color: var(--dim); white-space: nowrap; }
.hud b { color: var(--ink); font-weight: 600; margin-right: 4px; font-variant-numeric: tabular-nums; }
#mute { background: none; border: 2px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 13px; color: var(--dim); }

.stage { position: relative; flex: 1; margin: 0 20px; min-height: 360px; height: min(72vh, 760px); border-radius: 18px; overflow: hidden; border: 3px solid var(--ink); box-shadow: 0 6px 0 var(--ink); background: #000; }
#game { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

.overlay { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(20, 14, 36, 0.35); padding: 16px; }
.overlay[hidden] { display: none; }
.card { background: var(--panel); border: 3px solid var(--ink); border-radius: 18px; box-shadow: 0 6px 0 var(--ink); padding: 28px 32px; max-width: 420px; text-align: center; }
.card h1 { font: 400 56px/1 var(--display); letter-spacing: 0.02em; color: var(--gold); -webkit-text-stroke: 2px var(--ink); paint-order: stroke fill; text-shadow: 0 4px 0 var(--ink); }
.card p { margin-top: 14px; color: var(--dim); }
#ov-btn { margin-top: 20px; background: var(--gold); color: var(--ink); border: 3px solid var(--ink); border-radius: 999px; padding: 10px 34px; font: 400 22px/1 var(--display); letter-spacing: 0.04em; box-shadow: 0 4px 0 var(--ink); }
#ov-btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--ink); }
.card .keys { font-size: 12px; }

.pad { display: none; }

.about { max-width: 760px; margin: 28px auto 36px; padding: 0 20px; color: var(--dim); }
.about b { color: var(--ink); }
.links { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 12px; }
.links a { color: var(--ink); font-weight: 600; text-decoration-color: var(--gold-dark); text-underline-offset: 3px; }
.fine { margin-top: 14px; font-size: 12px; }

@media (pointer: coarse) {
  .pad { display: flex; justify-content: space-between; padding: 14px 16px 4px; }
  .pad > div { display: flex; gap: 12px; align-items: flex-end; }
  .pad button { width: 68px; height: 68px; border-radius: 50%; border: 3px solid var(--ink); background: rgba(255, 255, 255, 0.85); color: var(--ink); font-size: 24px; box-shadow: 0 4px 0 var(--ink); user-select: none; -webkit-user-select: none; touch-action: none; }
  .pad button.small { width: 52px; height: 52px; font-size: 18px; }
  .pad button.on { background: var(--gold); transform: translateY(3px); box-shadow: 0 1px 0 var(--ink); }
  .card .keys { display: none; }
}

@media (max-width: 720px) {
  .top { flex-wrap: wrap; gap: 10px; padding: 10px 16px; }
  .logo { font-size: 24px; }
  .hud { order: 3; width: 100%; margin-left: 0; gap: 6px; flex-wrap: nowrap; }
  .hud span { padding: 3px 9px; font-size: 12px; }
  .hud .best { display: none; }
  #mute { margin-left: auto; }
  .stage { margin: 0 16px; flex: none; height: 52vh; min-height: 280px; }
  .card { padding: 22px 20px; }
  .card h1 { font-size: 44px; }
  .about { padding: 0 16px; }
}