:root {
  --bg-top: #9bbc0f;
  --bg-bottom: #3b5d3b;
  --panel: #132a13;
  --panel-soft: #31572c;
  --screen: #dbe88d;
  --ink: #081c15;
  --accent: #efc84a;
  --danger: #bc4749;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(239, 200, 74, 0.22), transparent 30%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
  color: var(--ink);
  font-family: "Press Start 2P", monospace;
}

body {
  min-height: 100vh;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 16px;
  padding: 18px 14px calc(18px + env(safe-area-inset-bottom));
}

.frame {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  background: rgba(19, 42, 19, 0.92);
  border: 6px solid #081c15;
  border-radius: 20px;
  padding: 14px;
  box-shadow:
    0 20px 50px rgba(8, 28, 21, 0.35),
    inset 0 0 0 3px rgba(155, 188, 15, 0.2);
}

.hud,
.legend {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.hud {
  margin-bottom: 12px;
}

.hud div,
.legend span {
  background: rgba(219, 232, 141, 0.9);
  border: 3px solid rgba(8, 28, 21, 0.9);
  border-radius: 10px;
  padding: 10px;
}

.label {
  display: block;
  font-size: 10px;
  opacity: 0.7;
  margin-bottom: 8px;
}

strong {
  font-size: 12px;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--screen);
  border: 4px solid #081c15;
  border-radius: 14px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.legend {
  margin-top: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.legend span {
  font-size: 10px;
  line-height: 1.5;
}

.legend-links a {
  color: inherit;
}

.legend-links a:hover,
.legend-links a:focus-visible {
  color: var(--danger);
}

.touch-ui {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.touch-btn {
  appearance: none;
  border: 4px solid #081c15;
  border-radius: 18px;
  background:
    linear-gradient(180deg, #efc84a 0%, #d68c45 100%);
  color: #081c15;
  min-height: 76px;
  font: inherit;
  font-size: 22px;
  box-shadow: 0 8px 0 rgba(8, 28, 21, 0.65);
}

.touch-btn:active,
.touch-btn.is-active {
  transform: translateY(6px);
  box-shadow: 0 2px 0 rgba(8, 28, 21, 0.65);
}

.touch-jump {
  background: linear-gradient(180deg, #f28482 0%, #bc4749 100%);
}

@media (min-width: 901px) {
  .touch-ui {
    max-width: 420px;
  }
}

@media (max-width: 900px) {
  .hud,
  .legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .frame {
    padding: 10px;
  }
}

@media (max-width: 520px) {
  .shell {
    padding: 10px 10px calc(12px + env(safe-area-inset-bottom));
    gap: 10px;
  }

  .hud div,
  .legend span {
    padding: 8px;
  }

  .label,
  .legend span,
  strong {
    font-size: 9px;
  }

  .touch-btn {
    min-height: 68px;
    font-size: 20px;
  }
}