.ark-game-body { min-width: 0; }

.snake-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.snake-stage {
  min-width: 0;
  place-items: stretch;
}

.ark-game-heading > p {
  max-width: 40rem;
  color: rgb(244 246 246 / 66%);
  line-height: 1.65;
}

.ark-game-heading h1 span { color: var(--ark-signal, #18d1ff); }

.snake-stage > .ark-game-hud,
.snake-stage > .ark-game-live { width: 100%; }

.ark-game-brief ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ark-game-brief li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .65rem 0;
  border-bottom: 1px solid rgb(244 246 246 / 14%);
}

.ark-game-brief li strong {
  color: var(--ark-paper, #f4f6f6);
  text-align: end;
}

.snake-canvas-frame {
  position: relative;
  width: min(100%, 42rem);
  margin-inline: auto;
  border: 1px solid rgb(244 246 246 / 42%);
  background: #050708;
  box-shadow:
    .7rem .7rem 0 rgb(24 209 255 / 14%),
    inset 0 0 0 1px rgb(24 209 255 / 7%);
  isolation: isolate;
}

.snake-canvas-frame::before {
  content: "PLAYFIELD / 24-24";
  position: absolute;
  z-index: 2;
  inset: .65rem auto auto .75rem;
  color: rgb(244 246 246 / 54%);
  font-family: var(--ark-mono, Consolas, monospace);
  font-size: .58rem;
  letter-spacing: .12em;
  pointer-events: none;
}

#snake-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  background: #050708;
  touch-action: none;
  cursor: crosshair;
}

#snake-canvas:focus-visible {
  outline: 2px solid var(--ark-signal, #18d1ff);
  outline-offset: 4px;
}

.snake-corner {
  position: absolute;
  z-index: 2;
  width: 1.1rem;
  height: 1.1rem;
  border-color: var(--ark-signal, #18d1ff);
  pointer-events: none;
}

.snake-corner-a {
  inset: -.35rem auto auto -.35rem;
  border-top: 2px solid;
  border-left: 2px solid;
}

.snake-corner-b {
  inset: auto -.35rem -.35rem auto;
  border-right: 2px solid;
  border-bottom: 2px solid;
}

.snake-dpad {
  display: grid;
  grid-template-columns: repeat(3, minmax(3rem, 1fr));
  grid-template-rows: repeat(2, 3.2rem);
  gap: .45rem;
  max-width: 15rem;
}

.snake-dpad button {
  min-width: 3rem;
  min-height: 3rem;
  border: 1px solid rgb(244 246 246 / 38%);
  background: rgb(244 246 246 / 5%);
  color: var(--ark-paper, #f4f6f6);
  font-size: 1.25rem;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.snake-dpad button[data-direction="up"] { grid-column: 2; grid-row: 1; }
.snake-dpad button[data-direction="left"] { grid-column: 1; grid-row: 2; }
.snake-dpad button[data-direction="down"] { grid-column: 2; grid-row: 2; }
.snake-dpad button[data-direction="right"] { grid-column: 3; grid-row: 2; }

.snake-dpad button:is(:hover, :focus-visible) {
  border-color: var(--ark-signal, #18d1ff);
  background: var(--ark-signal, #18d1ff);
  color: var(--ark-ink, #080a0b);
}

.snake-dpad button:active { transform: translateY(2px); }

@media (max-width: 700px), (orientation: portrait) {
  .snake-canvas-frame {
    width: 100%;
    box-shadow: .4rem .4rem 0 rgb(24 209 255 / 12%);
  }

  .snake-dpad {
    width: min(100%, 18rem);
    max-width: none;
    margin-inline: auto;
    grid-template-rows: repeat(2, 3.6rem);
  }

  .snake-dpad button { min-height: 3.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .snake-dpad button { transition: none; }
}