:root {
  color-scheme: dark;
  background: #100d0b;
  font-family:
    Inter, ui-rounded, "SF Pro Rounded", "Apple SD Gothic Neo", "Malgun Gothic",
    system-ui, sans-serif;
}

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

html,
body {
  width: 100%;
  height: 100%;
  min-height: 100%;
  margin: 0;
  overscroll-behavior: none;
  touch-action: none;
}

body {
  display: grid;
  place-items: center;
  min-height: 100svh;
  overflow: hidden;
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 204, 126, 0.2), transparent 52%),
    linear-gradient(180deg, #241915 0%, #0d0b0b 100%);
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
  -webkit-user-select: none;
}

.game-shell {
  width: min(100vw, calc(100vh * 1604 / 981));
  height: min(100vh, calc(100vw * 981 / 1604));
  aspect-ratio: 1604 / 981;
  position: relative;
  overflow: hidden;
  background: #1d1511;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}

canvas:active,
canvas:focus {
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

@media (max-aspect-ratio: 1604 / 981) {
  .game-shell {
    width: 100vw;
    height: calc(100vw * 981 / 1604);
  }
}

@media (hover: none), (max-width: 900px), (max-height: 520px) {
  body {
    min-height: 100dvh;
    background: #100d0b;
  }

  .game-shell {
    width: 100vw;
    height: 100dvh;
    aspect-ratio: auto;
    box-shadow: none;
  }

  canvas {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100vw;
    height: calc(100vw * 981 / 1604);
    transform: translate(-50%, -50%);
  }
}

@media (hover: none) and (min-aspect-ratio: 1604 / 981),
  (max-height: 520px) and (min-aspect-ratio: 1604 / 981) {
  canvas {
    top: 50%;
    transform: translate(-50%, -50%);
  }
}

@media (hover: none) and (max-aspect-ratio: 1604 / 981),
  (max-width: 900px) and (max-aspect-ratio: 1604 / 981) {
  canvas {
    width: calc(100dvh * 1604 / 981);
    height: 100dvh;
  }
}

@media (hover: none) and (orientation: portrait),
  (max-width: 600px) and (orientation: portrait) {
  canvas {
    left: 50%;
    top: 50%;
    width: 100dvh;
    height: calc(100dvh * 981 / 1604);
    transform: translate(-50%, -50%) rotate(90deg);
  }
}