:root {
  --bg: #0e1726;
  --card: #162235;
  --text: #f6f8ff;
  --muted: #a8b6ce;
  --accent: #4ce0a6;
  --danger: #ff6b7c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(8, 12, 24, 0.74), rgba(8, 12, 24, 0.74)),
    url("../Untitled design (4).png");
  background-size: cover, cover;
  background-position: center center, center center;
  background-repeat: no-repeat, no-repeat;
}

.game-page {
  width: min(900px, 92vw);
  margin: 0 auto;
  padding: 2.2rem 0 3.2rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.4rem;
  padding: 0.55rem;
  border-radius: 14px;
  background: rgba(10, 16, 27, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(4px);
}

.nav-link {
  display: inline-block;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  border: 1px solid transparent;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.24);
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

h1 {
  margin: 0.35rem 0 0.4rem;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1;
}

.status-line {
  margin: 0;
  color: #d6def0;
}

.game-card {
  margin-top: 1.5rem;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 1.2rem;
}

.game-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.score {
  margin: 0;
  font-size: 1.05rem;
}

#snake-canvas {
  display: block;
  width: min(100%, 420px);
  height: auto;
  margin: 0 auto;
  border-radius: 12px;
  background: rgba(6, 11, 20, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.game-message {
  margin: 0.8rem 0 0;
  text-align: center;
  color: var(--muted);
}

.touch-controls {
  margin-top: 1rem;
  display: grid;
  justify-items: center;
  gap: 0.5rem;
}

.touch-row {
  display: flex;
  gap: 0.5rem;
}

.game-btn {
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-family: inherit;
  font-weight: 700;
  border-radius: 10px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  transition: transform 120ms ease, background-color 120ms ease;
  text-decoration: none;
}

.game-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.game-btn:active {
  transform: translateY(0);
}

.back-btn {
  margin-top: 1rem;
  display: inline-block;
}

.game-over {
  color: var(--danger);
}

@media (max-width: 640px) {
  .game-page {
    padding-top: 1.4rem;
  }
}