/* Tron-inspired Minesweeper Game */

:root {
  --tron-cyan: #00f5ff;
  --tron-blue: #0088ff;
  --tron-orange: #ff6600;
  --tron-yellow: #ffff00;
  --tron-green: #39ff14;
  --tron-magenta: #ff00ff;
  --tron-pink: #ff69b4;
  --tron-red: #ff0000;
  --tron-bg: #0a0a12;
  --tron-grid: #0d1520;
  --grid-line: rgba(0, 245, 255, 0.15);
  --grid-glow: rgba(0, 245, 255, 0.08);
  --text-dim: #4a6a8a;
  --white: #e8f4f8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--tron-bg);
  font-family: "VT323", monospace;
  color: var(--white);
  position: relative;
  overflow-x: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Grid background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.game-container {
  position: relative;
  z-index: 1;
  background: rgba(0, 0, 0, 0.8);
  border: 4px solid var(--tron-cyan);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 
    0 0 30px rgba(0, 245, 255, 0.5),
    0 0 60px rgba(0, 136, 255, 0.2),
    inset 0 0 40px rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(2px);
}

.game-header {
  text-align: center;
  margin-bottom: 2rem;
}

.game-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 2rem;
  margin: 0 0 1rem;
  color: var(--tron-cyan);
  text-shadow:
    0 0 10px var(--tron-cyan),
    0 0 20px var(--tron-cyan),
    0 0 30px var(--tron-blue);
  letter-spacing: 0.3em;
  animation: title-pulse 4s ease-in-out infinite;
}

@keyframes title-pulse {
  0%, 100% { 
    text-shadow: 0 0 10px var(--tron-cyan), 0 0 20px var(--tron-cyan), 0 0 30px var(--tron-blue);
    opacity: 1;
  }
  50% { 
    text-shadow: 0 0 15px var(--tron-cyan), 0 0 30px var(--tron-cyan), 0 0 45px var(--tron-blue);
    opacity: 0.8;
  }
}

.game-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(0, 245, 255, 0.05);
  border: 2px solid var(--tron-cyan);
  border-radius: 8px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-label {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--tron-cyan);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 5px var(--tron-cyan);
  letter-spacing: 0.1em;
}

.stat-value {
  font-family: "VT323", monospace;
  font-size: 1.5rem;
  color: var(--tron-orange);
  text-shadow: 0 0 8px var(--tron-orange);
  background: var(--tron-bg);
  border: 2px solid var(--tron-orange);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  min-width: 3rem;
  text-align: center;
}

.reset-btn {
  background: var(--tron-cyan);
  border: none;
  color: var(--tron-bg);
  font-size: 2rem;
  cursor: pointer;
  transition: all 0.3s;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.5);
}

.reset-btn:hover {
  background: var(--tron-blue);
  box-shadow: 0 0 25px rgba(0, 136, 255, 0.7);
  transform: scale(1.1);
}

.game-board {
  display: grid;
  gap: 0;
  background: transparent;
  margin: 0 auto 2rem;
  border: 2px solid var(--tron-blue);
  padding: 1px;
  box-shadow: inset 0 0 20px rgba(0, 136, 255, 0.3);
}

.cell {
  background: rgba(0, 136, 255, 0.1);
  border: 1px solid rgba(0, 136, 255, 0.3);
  width: 30px;
  height: 30px;
  font-family: "VT323", monospace;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tron-cyan);
  transition: all 0.2s;
  box-sizing: border-box;
  position: relative;
  cursor: pointer;
}

.cell:hover {
  background: rgba(0, 136, 255, 0.3);
  box-shadow: 0 0 8px rgba(0, 136, 255, 0.6);
  border-color: var(--tron-cyan);
}

.cell.revealed {
  background: rgba(0, 136, 255, 0.4);
  border-color: var(--tron-blue);
  cursor: default;
  box-shadow: inset 0 0 10px rgba(0, 136, 255, 0.3);
}

.cell.revealed.mine {
  background: rgba(255, 102, 0, 0.2);
  border-color: var(--tron-orange);
  animation: pulse-orange 2s infinite;
}

.cell.revealed.mine::before {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  background: radial-gradient(circle, var(--tron-orange), var(--tron-red));
  border-radius: 50%;
  box-shadow: 0 0 10px var(--tron-orange);
  animation: rotate-disc 3s linear infinite;
}

.cell.flagged {
  background: rgba(255, 255, 0, 0.2);
  border-color: var(--tron-yellow);
}

.cell.flagged::after {
  content: "⚠";
  color: var(--tron-yellow);
  font-size: 1.2rem;
  text-shadow: 0 0 5px var(--tron-yellow);
}

.cell-1 { color: var(--tron-blue); }
.cell-2 { color: var(--tron-green); }
.cell-3 { color: var(--tron-red); }
.cell-4 { color: var(--tron-magenta); }
.cell-5 { color: var(--tron-orange); }
.cell-6 { color: var(--tron-cyan); }
.cell-7 { color: var(--tron-pink); }
.cell-8 { color: var(--tron-yellow); }

@keyframes pulse-orange {
  0%, 100% { 
    opacity: 0.3;
    box-shadow: 0 0 5px rgba(255, 102, 0, 0.3);
  }
  50% { 
    opacity: 0.6;
    box-shadow: 0 0 15px rgba(255, 102, 0, 0.6);
  }
}

@keyframes rotate-disc {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.difficulty-selector {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.diff-btn {
  background: transparent;
  color: var(--tron-green);
  border: 2px solid var(--tron-green);
  padding: 0.5rem 1rem;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 0.6rem;
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
}

.diff-btn:hover {
  background: rgba(57, 255, 20, 0.2);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.5);
  transform: scale(1.05);
}

.diff-btn.active {
  background: var(--tron-green);
  color: var(--tron-bg);
  box-shadow: 0 0 15px rgba(57, 255, 20, 0.7);
}

.back-nav {
  text-align: center;
  margin-top: 2rem;
}

.back-link {
  color: var(--tron-magenta);
  text-decoration: none;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--tron-magenta);
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 4px;
}

.back-link:hover {
  color: var(--tron-pink);
  border-color: var(--tron-pink);
  box-shadow: 0 0 15px rgba(255, 0, 255, 0.4);
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .game-container {
    padding: 1rem;
    margin: 1rem;
  }
  
  .game-title {
    font-size: 1.5rem;
  }
  
  .cell {
    width: 25px;
    height: 25px;
    font-size: 0.8rem;
  }
  
  .game-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .stat-value {
    font-size: 1.2rem;
  }
  
  .difficulty-selector {
    flex-direction: column;
    align-items: center;
  }
  
  .diff-btn {
    width: 100%;
    max-width: 200px;
  }
}