:root {
  color-scheme: light;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background: #f4f1e8;
  color: #1f1f1f;
  --panel-bg: #fffdf7;
  --panel-border: #d8cfbf;
  --grid-bg: #efe8d8;
  --cell-empty: #f8f3e8;
  --cell-snake: #2f6b3b;
  --cell-head: #1d4f29;
  --cell-food: #b94a2f;
  --button-bg: #f1ead9;
  --button-border: #c7bda8;
  --button-text: #2a2a2a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, #fffdf7 0%, #f4f1e8 55%, #e8e0cf 100%);
}

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

.panel {
  width: min(100%, 560px);
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: var(--panel-bg);
  box-shadow: 0 18px 40px rgba(66, 52, 22, 0.12);
}

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

.eyebrow,
.stats p,
.help {
  margin: 0;
  font-size: 0.9rem;
  color: #675f51;
}

h1 {
  margin: 4px 0 0;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 0.95;
}

.stats {
  text-align: right;
}

.stats strong {
  display: block;
  font-size: 2rem;
}

.status-bar {
  margin: 18px 0 16px;
}

#status {
  margin: 0;
  min-height: 1.5em;
}

button {
  font: inherit;
  cursor: pointer;
  color: var(--button-text);
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  border-radius: 999px;
}

#restart-button {
  padding: 10px 16px;
}

.board {
  --grid-size: 16;
  display: grid;
  grid-template-columns: repeat(var(--grid-size), minmax(0, 1fr));
  gap: 3px;
  aspect-ratio: 1;
  padding: 10px;
  background: var(--grid-bg);
  border-radius: 16px;
  border: 1px solid var(--panel-border);
}

.cell {
  border-radius: 4px;
  background: var(--cell-empty);
}

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

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

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

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.control {
  min-height: 52px;
}

.control--up,
.control--down {
  grid-column: 2;
}

.control--left {
  grid-column: 1;
  grid-row: 2;
}

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

.help {
  margin-top: 14px;
}

@media (min-width: 720px) {
  .controls {
    max-width: 240px;
    margin-inline: auto;
  }
}