:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090b11;
  color: #f7f8fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(102, 111, 224, .18), transparent 42%),
    #090b11;
}

.shell {
  width: min(1100px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0 38px;
}

.topbar,
.controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.eyebrow,
.mini {
  font-size: 11px;
  letter-spacing: .18em;
  opacity: .62;
}

h1 {
  margin: 4px 0 0;
  font-size: clamp(30px, 5vw, 56px);
  letter-spacing: -.04em;
}

.subtitle {
  margin: 5px 0 0;
  color: rgba(255,255,255,.58);
  font-size: 14px;
}

.stats {
  display: flex;
  gap: 18px;
  font-size: 13px;
  opacity: .82;
}

.stats strong {
  display: inline-block;
  min-width: 28px;
  margin-left: 5px;
  font-size: 20px;
  color: white;
}

.game-wrap {
  position: relative;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 24px;
  box-shadow: 0 24px 80px rgba(0,0,0,.42);
  background: #111522;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  touch-action: manipulation;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 7, 12, .42);
  backdrop-filter: blur(4px);
}

.overlay.hidden { display: none; }

.card {
  width: min(440px, 92%);
  padding: 29px;
  text-align: center;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  background: rgba(18, 22, 34, .9);
  box-shadow: 0 18px 50px rgba(0,0,0,.38);
}

.card h2 {
  margin: 7px 0 8px;
  font-size: 32px;
}

.card p {
  margin: 0 0 20px;
  line-height: 1.52;
  opacity: .75;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 24px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  color: #10131b;
  background: #f5f7ff;
}

.keyhint {
  margin-top: 13px;
  font-size: 12px;
  color: rgba(255,255,255,.48);
}

.controls {
  margin-top: 16px;
  padding: 0 4px;
  font-size: 13px;
  color: rgba(255,255,255,.64);
}

.controls div { display: grid; gap: 2px; }
.controls strong { color: rgba(255,255,255,.92); }

.sound-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

@media (max-width: 720px) {
  .topbar { align-items: end; }
  .stats { gap: 8px; flex-direction: column; }
  .controls { align-items: flex-start; flex-direction: column; }
}


.control-actions {
  display: flex !important;
  grid-auto-flow: column;
  align-items: center;
  gap: 12px !important;
}

.pause-button {
  padding: 7px 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.9);
  font-size: 12px;
  font-weight: 650;
}

.pause-button:disabled {
  opacity: .38;
  cursor: default;
}