:root {
  --sand-1: #f4d28c;
  --sand-2: #d4a85d;
  --sand-3: #8d5c26;
  --ink: #2f1908;
  --panel: rgba(255, 247, 225, 0.92);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  touch-action: manipulation;
  background:
    radial-gradient(circle at top, rgba(255, 244, 214, 0.92), transparent 40%),
    linear-gradient(180deg, #fef8ea 0%, #f7d7a2 100%);
}

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.intro {
  text-align: center;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: #7a4c18;
}

.intro h1 {
  margin: 8px 0 10px;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.summary,
.controls {
  max-width: 780px;
  margin: 0 auto 10px;
  line-height: 1.5;
}

.controls span {
  display: inline-block;
  margin-left: 14px;
}

.mobile-note {
  margin: 4px auto 0;
  color: #8b5b1f;
  font-size: 0.95rem;
}

.game-frame {
  padding: 14px;
  background: var(--panel);
  border: 3px solid rgba(141, 92, 38, 0.45);
  border-radius: 20px;
  box-shadow: 0 18px 45px rgba(93, 58, 20, 0.18);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #d6eefc;
  touch-action: none;
}

.touch-controls {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 0.9fr;
  gap: 10px;
  margin-top: 16px;
}

.touch-button {
  border: 0;
  border-radius: 18px;
  padding: 14px 12px;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  color: #fff8e7;
  background: linear-gradient(180deg, #a46a24, #7c4914);
  box-shadow: 0 10px 20px rgba(83, 49, 15, 0.18);
  touch-action: manipulation;
}

.touch-button:active,
.touch-button.is-pressed {
  transform: translateY(1px) scale(0.98);
  background: linear-gradient(180deg, #8c561c, #67370e);
}

.touch-button-jump {
  background: linear-gradient(180deg, #2d83b4, #155d88);
}

.touch-button-jump:active,
.touch-button-jump.is-pressed {
  background: linear-gradient(180deg, #246d95, #114b6d);
}

.touch-button-wide {
  min-width: 0;
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 16px, 1180px);
    padding-top: 16px;
  }

  .controls span {
    display: block;
    margin: 8px 0 0;
  }

  .game-frame {
    padding: 8px;
    border-radius: 14px;
  }

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

  .touch-button:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 721px) {
  .mobile-note {
    display: none;
  }
}