:root {
  --bg-top: #1f1322;
  --bg-bottom: #09060e;
  --panel: rgba(16, 15, 24, 0.84);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #fff6ea;
  --muted: #d8bfa8;
  --accent: #ff9f43;
  --accent-2: #ff5f6d;
  --sand: #cf6d3d;
  --sand-dark: #7e3720;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(255, 172, 91, 0.2), transparent 32%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

.rotate-screen {
  display: none;
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  object-fit: cover;
  z-index: 20;
  background: #09060e;
}

.game-shell {
  width: 100vw;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  padding: 24px;
}

.play-area {
  width: min(1240px, calc(100vw - 48px));
  min-height: calc(100dvh - 48px);
  margin: 0 auto;
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 159, 67, 0.12), rgba(255, 95, 109, 0.08)),
    var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  display: grid;
  place-items: center;
}

canvas {
  width: min(100vw, calc(100dvh * (16 / 9)));
  height: min(100dvh, calc(100vw * (9 / 16)));
  aspect-ratio: 16 / 9;
  max-width: 100%;
  max-height: calc(100dvh - 84px);
  display: block;
  border-radius: 20px;
  background: linear-gradient(180deg, #261637 0%, #6f3450 45%, #cc6b44 100%);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

@media (max-width: 780px), (pointer: coarse) {
  body {
    background: #09060e;
  }

  .game-shell {
    padding: 0;
  }

  .play-area {
    width: 100vw;
    min-height: 100dvh;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: #09060e;
    box-shadow: none;
  }

  canvas {
    width: min(100vw, calc(100dvh * (16 / 9)));
    height: min(100dvh, calc(100vw * (9 / 16)));
    max-width: 100vw;
    max-height: 100dvh;
    border-radius: 0;
  }
}

body.portrait-mode {
  background: #09060e;
}

body.portrait-mode .rotate-screen {
  display: block;
}

body.portrait-mode .game-shell {
  display: none;
}