:root {
  color-scheme: dark;
  --bg: #0d1f14;
  --panel: #16341f;
  --accent: #ffe36e;
  --accent-2: #69dcff;
  --text: #f8ffe8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top, #1f5a2d, var(--bg) 62%);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  display: grid;
  place-items: center;
  padding: 18px;
}

.game-shell {
  width: min(100%, 1040px);
}

header {
  text-align: center;
  margin-bottom: 14px;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0.02em;
  color: var(--accent);
  text-shadow: 0 4px 0 #172115;
}

header p,
.help p {
  margin: 8px 0 0;
  color: #dff3d4;
}

.game-frame {
  position: relative;
  border: 6px solid #482f1a;
  border-radius: 24px;
  overflow: hidden;
  background: #13351e;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), inset 0 0 0 4px rgba(255, 255, 255, 0.08);
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  outline: none;
  background: #67c96b;
}

.screen-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  overflow-y: auto;
  padding: 18px;
  background: linear-gradient(rgba(8, 23, 12, 0.45), rgba(8, 23, 12, 0.65));
}

.screen-overlay.hidden {
  display: none;
}

.overlay-card {
  width: min(92%, 520px);
  margin: auto;
  padding: 24px;
  border: 4px solid #fff6a9;
  border-radius: 24px;
  color: #273010;
  background: #fff7b5;
  text-align: center;
  box-shadow: 0 14px 0 #7b5226, 0 24px 50px rgba(0, 0, 0, 0.35);
}

.overlay-card h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 4vw, 2.8rem);
}

.overlay-card p {
  margin: 0 0 18px;
  font-size: 1.05rem;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  color: #1c2a13;
  background: var(--accent);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 6px 0 #8b6820;
}

button:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #8b6820;
}

.help {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(10, 27, 14, 0.58);
}

.touch-controls {
  display: none;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
}

.touch-controls .pad {
  display: flex;
  gap: 14px;
}

.touch-controls button {
  width: 74px;
  height: 74px;
  padding: 0;
  border-radius: 50%;
  font-size: 1.9rem;
  background: var(--accent-2);
  box-shadow: 0 6px 0 #226577;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.touch-controls button:active {
  box-shadow: 0 2px 0 #226577;
}

@media (hover: none), (pointer: coarse) {
  body {
    padding: 10px;
  }

  .touch-controls {
    display: flex;
  }
}

@media (max-width: 480px) {
  /* Op smalle schermen is het 16:9-veld te laag voor de kaart, dus tonen we de
     overlay als volledig-scherm modal (niet geklemd door het speelveld). */
  .screen-overlay {
    position: fixed;
  }

  header {
    margin-bottom: 8px;
  }

  h1 {
    font-size: clamp(1.5rem, 7vw, 2.4rem);
  }

  header p {
    font-size: 0.9rem;
  }

  .overlay-card {
    padding: 14px 16px;
    box-shadow: 0 8px 0 #7b5226, 0 16px 30px rgba(0, 0, 0, 0.35);
  }

  .overlay-card h2 {
    margin: 0 0 6px;
    font-size: clamp(1.2rem, 6vw, 1.7rem);
  }

  .overlay-card p {
    margin: 0 0 12px;
    font-size: 0.9rem;
  }

  .overlay-card button {
    padding: 10px 18px;
  }

  .touch-controls {
    gap: 10px;
  }

  .touch-controls .pad {
    gap: 10px;
  }

  .touch-controls button {
    width: 64px;
    height: 64px;
    font-size: 1.6rem;
  }
}