:root {
  --bg: #0b0f1a;
  --panel: rgba(16, 21, 35, 0.9);
  --grid: #1b2338;
  --snake: #79f2a6;
  --food: #ff6b6b;
  --text: #eef2ff;
  --accent: #76d3ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  background: radial-gradient(circle at top, #1b2a5a 0%, var(--bg) 55%);
  color: var(--text);
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px 12px;
}

.app {
  width: min(92vw, 520px);
  display: grid;
  gap: 16px;
}

.hud {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 10px;
  color: var(--accent);
}

.title {
  margin: 4px 0 0;
  font-size: 36px;
  font-family: "VT323", monospace;
  letter-spacing: 0.08em;
}

.score {
  font-size: 16px;
  background: rgba(0, 0, 0, 0.35);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(118, 211, 255, 0.2);
}

.controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  background: linear-gradient(140deg, #1e2a4d 0%, #141c33 100%);
  color: var(--text);
  border: 1px solid rgba(118, 211, 255, 0.2);
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 999px;
  font-weight: 600;
}

.board-wrap {
  position: relative;
  background: var(--panel);
  border: 1px solid rgba(118, 211, 255, 0.2);
  padding: 12px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

#board {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(180deg, #1a233a 0%, var(--grid) 100%);
  border-radius: 12px;
}

.overlay {
  position: absolute;
  inset: 12px;
  display: grid;
  place-items: center;
  background: rgba(7, 11, 22, 0.75);
  font-size: 18px;
  text-align: center;
  border-radius: 12px;
}

.hidden {
  display: none;
}

.pad {
  display: grid;
  gap: 8px;
  justify-items: center;
}

.pad-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
}

.pad-btn {
  width: 100%;
  padding: 10px 0;
  background: linear-gradient(150deg, #1f2b49, #131a30);
  color: var(--text);
  border: 1px solid rgba(118, 211, 255, 0.2);
  cursor: pointer;
  border-radius: 10px;
  font-weight: 600;
}

.hint {
  margin: 0;
  font-size: 12px;
  opacity: 0.8;
  text-align: center;
}

@media (hover: hover) and (pointer: fine) {
  .pad {
    display: none;
  }
}