html {
  background: var(--page-background);
}

body {
  min-height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at center, #1a2116 0%, var(--page-background) 68%),
    var(--page-background);
  color: var(--message-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overscroll-behavior: none;
}

.game-shell {
  display: grid;
  min-height: 100svh;
  place-items: center;
}

.game-stage {
  position: relative;
  width: 100vw;
  height: 100svh;
  overflow: hidden;
  background: #fff;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.mobile-controls {
  position: absolute;
  bottom: max(18px, env(safe-area-inset-bottom));
  left: max(18px, env(safe-area-inset-left));
  display: none;
  grid-template: repeat(2, 56px) / repeat(3, 56px);
  gap: 5px;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.mobile-pause-button {
  display: none;
  position: absolute;
  top: max(18px, env(safe-area-inset-top));
  right: max(18px, env(safe-area-inset-right));
  width: 52px;
  height: 52px;
  place-items: center;
  border: 2px solid rgb(255 255 255 / 80%);
  border-radius: 12px;
  background: rgb(13 13 13 / 72%);
  color: #fff;
  font-family: "Press Start 2P", monospace;
  font-size: 22px;
  line-height: 1;
  text-shadow: 2px 2px 0 #000;
  -webkit-tap-highlight-color: transparent;
  z-index: 3;
}

.mobile-pause-button:active {
  transform: translateY(1px);
}

.direction-button {
  display: grid;
  place-items: center;
  border: 2px solid var(--control-border);
  border-radius: 14px;
  background: var(--control-background);
  color: var(--control-text);
  font-size: 21px;
  line-height: 1;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

.direction-button.is-pressed {
  background: rgb(91 126 28 / 90%);
  transform: translateY(1px);
}

.direction-button--up {
  grid-area: 1 / 2;
}

.direction-button--left {
  grid-area: 2 / 1;
}

.direction-button--down {
  grid-area: 2 / 2;
}

.direction-button--right {
  grid-area: 2 / 3;
}

.screen-message {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  padding: 24px;
  background: var(--message-background);
  color: var(--message-text);
  text-align: center;
}

.screen-message[hidden] {
  display: none;
}

.screen-message--error {
  color: #ffd7d7;
}

.rotate-notice {
  display: none;
}

.rotate-notice__icon {
  font-size: 48px;
}