:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #647086;
  --panel: rgba(255, 255, 255, 0.9);
  --line: rgba(26, 38, 58, 0.14);
  --accent: #0f9f8f;
  --accent-2: #f08a24;
  --danger: #c23a3a;
  --bg-a: #f4efe4;
  --bg-b: #dceaf0;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 12% 12%, rgba(15, 159, 143, 0.18), transparent 28rem),
    linear-gradient(135deg, var(--bg-a), var(--bg-b));
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

.wrap {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 16px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.top h1 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.top p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

button {
  min-height: 42px;
  border: 1px solid rgba(23, 32, 51, 0.16);
  border-radius: 8px;
  background: #172033;
  color: #fff;
  padding: 0 16px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(23, 32, 51, 0.14);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
  box-shadow: none;
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}

.pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 8px 12px;
}

.pill span {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.pill strong {
  font-size: 1.08rem;
  font-variant-numeric: tabular-nums;
}

.stage-shell {
  width: min(540px, 100%);
  margin: 0 auto;
  border: 1px solid rgba(23, 32, 51, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.58);
  box-shadow: 0 18px 46px rgba(43, 61, 80, 0.18);
  overflow: hidden;
}

#game-stage {
  width: 100%;
  aspect-ratio: 3 / 4;
  min-height: 420px;
}

#game-stage canvas {
  display: block;
}

.controls {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  align-items: center;
  gap: 10px;
  width: min(680px, 100%);
  margin: 12px auto 0;
}

.zoom {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 8px 12px;
}

.zoom span {
  color: var(--muted);
  font-size: 0.86rem;
  text-transform: uppercase;
}

.zoom input {
  width: 100%;
  accent-color: var(--accent);
}

#hintBtn {
  background: var(--accent);
}

#statusText,
#rewardNote {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  text-align: center;
  line-height: 1.35;
}

#statusText {
  color: var(--ink);
  font-weight: 650;
}

@media (max-width: 620px) {
  .wrap {
    padding: 10px;
  }

  .top {
    align-items: flex-start;
  }

  .top p {
    font-size: 0.9rem;
  }

  .hud {
    grid-template-columns: repeat(2, 1fr);
  }

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

  #hintBtn,
  #restartBtn {
    width: 100%;
  }

  #game-stage {
    min-height: 360px;
  }
}