:root {
  color-scheme: light;
  --bg: #f4efe6;
  --panel: #fffdf9;
  --panel-border: #d7cbbd;
  --text: #26211a;
  --muted: #6d6357;
  --accent: #2f6f4f;
  --accent-strong: #214f39;
  --food: #bb3e2f;
  --cell: #efe5d7;
  --cell-border: #e0d4c3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, #f8f4ec 0%, var(--bg) 100%);
  color: var(--text);
}

.page {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: 32px 20px 40px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
}

.intro {
  margin: 12px 0 0;
  max-width: 56ch;
  color: var(--muted);
  line-height: 1.5;
}

.game-shell {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(64, 48, 29, 0.08);
}

.game-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.label,
.status {
  margin: 0;
  color: var(--muted);
}

.score {
  margin: 4px 0 0;
  font-size: 2rem;
  font-weight: 700;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}

.button,
.control-button {
  border: 1px solid var(--panel-border);
  background: #fff;
  color: var(--text);
  border-radius: 12px;
  font: inherit;
  cursor: pointer;
}

.button {
  padding: 10px 16px;
}

.button:hover,
.control-button:hover {
  border-color: var(--accent);
}

.board {
  display: grid;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: 4px;
  width: min(100%, 560px);
  aspect-ratio: 1;
  margin: 0 auto;
  padding: 8px;
  background: #eadfce;
  border-radius: 18px;
}

.cell {
  background: var(--cell);
  border-radius: 6px;
  border: 1px solid var(--cell-border);
}

.cell.snake {
  background: var(--accent);
  border-color: var(--accent);
}

.cell.head {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.cell.food {
  background: var(--food);
  border-color: var(--food);
}

.controls {
  width: min(100%, 240px);
  margin: 20px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.control-button {
  min-height: 48px;
  padding: 10px 12px;
}

.control-button.up {
  grid-column: 2;
}

.control-button.left {
  grid-column: 1;
}

.control-button.down {
  grid-column: 2;
}

.control-button.right {
  grid-column: 3;
  grid-row: 2;
}

@media (max-width: 640px) {
  .page {
    padding: 20px 14px 32px;
  }

  .game-header {
    flex-direction: column;
    align-items: stretch;
  }

  .actions {
    align-items: flex-start;
  }
}