/* Import Google font */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&display=swap');
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Open Sans', sans-serif;
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0F172A, #1E293B, #334155);
  color: #E2E8F0;
}

.wrapper {
  width: 65vmin;
  height: 70vmin;
  display: flex;
  overflow: hidden;
  flex-direction: column;
  justify-content: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.12);
}

.game-details {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand .title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  text-shadow: 0 0 18px rgba(34, 197, 94, 0.35);
}

.brand .sub {
  margin-top: 4px;
  color: #A7B3C8;
  font-size: 0.95rem;
}

.level-label {
  color: #34D399;
  font-weight: 700;
}

.stats {
  display: flex;
  gap: 18px;
}

.stat {
  color: #CBD5E1;
  font-weight: 600;
  font-size: 1rem;
}

.top-controls {
  padding: 0 24px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.difficulty {
  display: flex;
  gap: 10px;
}

.diff-btn {
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(15, 23, 42, 0.35);
  color: #C7D2FE;
  padding: 10px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease, border-color 120ms ease;
}

.diff-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.25);
}

.diff-btn.active {
  background: rgba(34, 197, 94, 0.18);
  border-color: rgba(34, 197, 94, 0.35);
  box-shadow: 0 0 26px rgba(34, 197, 94, 0.25);
}

.actions .action-btn {
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(15, 23, 42, 0.35);
  color: #E5E7EB;
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
}

.board-area {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.play-board {
  flex: 1;
  height: 100%;
  width: 100%;
  display: grid;
  background: rgba(2, 6, 23, 0.55);
  grid-template: repeat(30, 1fr) / repeat(30, 1fr);
  position: relative;
  border-radius: 14px;
  margin: 0 16px 16px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.play-board .food {
  background: radial-gradient(circle at 30% 30%, #FFF7ED, #FB7185, #E11D48);
  border-radius: 999px;
  box-shadow:
    0 0 18px rgba(225, 29, 72, 0.55),
    0 0 42px rgba(225, 29, 72, 0.25);
  animation: foodPulse 900ms ease-in-out infinite;
}

.play-board .head {
  background: linear-gradient(180deg, #4ADE80, #22C55E);
  border-radius: 8px;
  box-shadow:
    0 0 14px rgba(34, 197, 94, 0.6),
    inset 0 0 0 1px rgba(255,255,255,0.18);
}

@keyframes foodPulse {
  0%, 100% { transform: scale(0.92); filter: brightness(1); }
  50% { transform: scale(1.06); filter: brightness(1.2); }
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(2, 6, 23, 0.58);
}

.overlay-card {
  width: min(460px, 100%);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 28px 70px rgba(0,0,0,0.5);
  padding: 22px 20px;
}

.overlay-title {
  font-size: 1.7rem;
  text-align: center;
  font-weight: 800;
  margin-bottom: 14px;
  text-shadow: 0 0 24px rgba(34,197,94,0.28);
}

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

.primary-btn {
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(34, 197, 94, 0.22);
  color: #E6FFFA;
  padding: 12px 18px;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 900;
  width: 100%;
  max-width: 260px;
  box-shadow: 0 0 36px rgba(34, 197, 94, 0.22);
  transition: transform 120ms ease, filter 120ms ease;
}

.primary-btn:hover { transform: translateY(-1px); filter: brightness(1.1); }

.hint {
  color: #A7B3C8;
  font-weight: 600;
}

.overlay-footer {
  margin-top: 14px;
  color: #CBD5E1;
  font-weight: 700;
  text-align: center;
}

.overlay-stats {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 6px 16px;
  color: #E2E8F0;
  font-weight: 800;
}

.overlay-stats > div { flex: 1; text-align: center; }

.controls {
  display: none;
  justify-content: space-between;
}
.controls i {
  padding: 25px 0;
  text-align: center;
  font-size: 1.3rem;
  color: #B8C6DC;
  width: calc(100% / 4);
  cursor: pointer;
  border-right: 1px solid #171B26;
}

@media screen and (max-width: 800px) {
  .wrapper {
    width: 90vmin;
    height: 115vmin;
  }
  .game-details {
    padding: 15px 18px;
  }
  .top-controls {
    padding: 0 18px 12px;
  }
  .controls {
    display: flex;
  }
  .controls i {
    padding: 15px 0;
    font-size: 1rem;
  }
}