:root {
  color-scheme: light;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  --bg: #f4efe6;
  --panel: #fffaf0;
  --panel-border: #3a3125;
  --cell: #efe5d2;
  --food: #b13a2e;
  --snake: #2f6b3b;
  --snake-head: #1d4726;
  --text: #241d16;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #efe5d2 0%, var(--bg) 100%);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.game-card {
  width: min(100%, 560px);
  background: var(--panel);
  border: 2px solid var(--panel-border);
  border-radius: 16px;
  box-shadow: 0 14px 30px rgba(36, 29, 22, 0.12);
  padding: 20px;
}

.game-header,
.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.game-header h1,
.status-row p {
  margin: 0;
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

.scoreboard {
  text-align: right;
}

.scoreboard span,
.controls-copy,
#status {
  font-size: 0.92rem;
}

.scoreboard strong {
  display: block;
  font-size: 1.8rem;
}

#restart-button,
.controls-grid button {
  border: 2px solid var(--panel-border);
  border-radius: 10px;
  background: #f7eedf;
  color: var(--text);
  font: inherit;
}

#restart-button {
  padding: 10px 14px;
  cursor: pointer;
}

.game-board {
  display: grid;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: 2px;
  background: var(--panel-border);
  border: 2px solid var(--panel-border);
  padding: 2px;
  margin-top: 18px;
  aspect-ratio: 1;
}

.cell {
  background: var(--cell);
  border-radius: 2px;
}

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

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

.cell-head {
  background: var(--snake-head);
}

.controls-panel {
  margin-top: 18px;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(3, 52px);
  justify-content: center;
  gap: 8px;
}

.controls-grid button {
  height: 52px;
  font-size: 1.2rem;
  cursor: pointer;
}

.controls-grid button[data-direction="up"] {
  grid-column: 2;
}

.controls-grid button[data-direction="left"] {
  grid-column: 1;
  grid-row: 2;
}

.controls-grid button[data-direction="down"] {
  grid-column: 2;
  grid-row: 2;
}

.controls-grid button[data-direction="right"] {
  grid-column: 3;
  grid-row: 2;
}

.controls-copy {
  margin: 12px 0 0;
  text-align: center;
}

@media (max-width: 640px) {
  .app-shell {
    padding: 12px;
  }

  .game-card {
    padding: 16px;
  }

  .game-header,
  .status-row {
    align-items: flex-start;
    flex-direction: column;
  }

  #restart-button {
    width: 100%;
  }
}