:root {
  --sky-top: #78d8ff;
  --sky-bottom: #f4fdff;
  --sun-yellow: #ffde5e;
  --grass: #5dc35d;
  --grass-dark: #3d9942;
  --dirt: #b87d47;
  --panel: #ffffffcf;
  --ink: #2d2d2d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Comic Sans MS", "Chalkboard SE", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 20%, #fff8b8 0, #fff8b800 27%),
    linear-gradient(170deg, #f8fff2 0%, #f2ffe9 32%, #f7ffff 100%);
}

body {
  display: grid;
  place-items: center;
  padding: 1rem;
}

.game-shell {
  width: min(1000px, 100%);
  position: relative;
}

.hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.55rem;
}

.hud h1 {
  margin: 0;
  font-size: clamp(1.4rem, 4vw, 2.3rem);
  letter-spacing: 0.03em;
  color: #7d4b12;
  text-shadow: 0 2px 0 #fff7;
}

.stats {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  flex-wrap: wrap;
  background: var(--panel);
  border: 2px solid #ffe28b;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
}

#muteBtn {
  border: 2px solid #7d4b12;
  border-radius: 999px;
  background: #ffec9f;
  color: #5b390f;
  padding: 0.2rem 0.6rem;
  font-weight: 700;
  cursor: pointer;
}

#muteBtn:hover {
  transform: translateY(-1px);
}

canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 3px solid #ffe28b;
  box-shadow:
    0 16px 40px #8ad7ff4d,
    inset 0 0 0 4px #fff5;
  background: linear-gradient(to bottom, var(--sky-top), var(--sky-bottom));
}

.controls p {
  margin: 0.65rem 0 0;
  text-align: center;
  font-weight: 700;
}

kbd {
  font-family: "Trebuchet MS", sans-serif;
  border: 1px solid #6f6f6f;
  background: #fff;
  border-radius: 6px;
  padding: 0.08rem 0.33rem;
  box-shadow: 0 1px 0 #6f6f6f;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  transition: opacity 220ms ease;
}

.overlay.hidden {
  opacity: 0;
}

.overlay-card {
  background: #fffaf2ec;
  border: 3px dashed #ffb36b;
  border-radius: 16px;
  padding: 0.9rem 1rem;
  text-align: center;
  box-shadow: 0 10px 24px #0000001a;
}

.overlay-card h2 {
  margin: 0 0 0.35rem;
  color: #7d4b12;
}

.overlay-card p {
  margin: 0;
}