/* 
 * Algorithm Games Suite - Shared Styles
 * Theme: Digital Circuit / Cybernetic
 */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=JetBrains+Mono:wght@400;500;600;700&family=Rajdhani:wght@400;500;600;700&display=swap');

:root {
  /* Core Colors */
  --bg-primary: #0a0e17;
  --bg-secondary: #111927;
  --bg-tertiary: #1a2332;
  --bg-card: #151d2b;

  /* Neon Accents */
  --neon-cyan: #00f5ff;
  --neon-magenta: #ff00ff;
  --neon-yellow: #f0ff00;
  --neon-green: #00ff88;
  --neon-orange: #ff8800;
  --neon-red: #ff3366;
  --neon-purple: #aa55ff;
  --neon-blue: #4488ff;

  /* Text Colors */
  --text-primary: #e8f0ff;
  --text-secondary: #8899aa;
  --text-muted: #556677;

  /* Gradients */
  --gradient-cyan: linear-gradient(135deg, #00f5ff, #00a8ff);
  --gradient-magenta: linear-gradient(135deg, #ff00ff, #ff0088);
  --gradient-rainbow: linear-gradient(
    90deg,
    #00f5ff,
    #aa55ff,
    #ff00ff,
    #ff8800
  );

  /* Shadows */
  --glow-cyan: 0 0 20px rgba(0, 245, 255, 0.4);
  --glow-magenta: 0 0 20px rgba(255, 0, 255, 0.4);
  --glow-green: 0 0 20px rgba(0, 255, 136, 0.4);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Grid Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Game Card */
.game-card {
  background: var(--bg-card);
  border: 1px solid rgba(0, 245, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-rainbow);
  opacity: 0;
  transition: var(--transition-normal);
}

.game-card:hover {
  transform: translateY(-4px);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.game-card:hover::before {
  opacity: 1;
}

/* Buttons */
.btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.btn-primary {
  background: var(--gradient-cyan);
  color: var(--bg-primary);
}

.btn-primary:hover {
  box-shadow: var(--glow-cyan);
  transform: scale(1.05);
}

.btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 2px solid var(--neon-cyan);
}

.btn-secondary:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
}

.btn-success {
  background: var(--neon-green);
  color: var(--bg-primary);
}

.btn-danger {
  background: var(--neon-red);
  color: white;
}

/* Array Display */
.array-container {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  padding: var(--space-lg);
}

.array-cell {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  border: 2px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
}

.array-cell.active {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  background: rgba(0, 245, 255, 0.1);
}

.array-cell.highlight {
  border-color: var(--neon-magenta);
  box-shadow: var(--glow-magenta);
  background: rgba(255, 0, 255, 0.1);
}

.array-cell.success {
  border-color: var(--neon-green);
  box-shadow: var(--glow-green);
  background: rgba(0, 255, 136, 0.1);
}

.array-cell .index {
  position: absolute;
  top: -20px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Input Fields */
.input-field {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-tertiary);
  border: 2px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.input-field:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

/* Status Messages */
.status {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
}

.status-info {
  background: rgba(0, 245, 255, 0.1);
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
}

.status-success {
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid var(--neon-green);
  color: var(--neon-green);
}

.status-error {
  background: rgba(255, 51, 102, 0.1);
  border: 1px solid var(--neon-red);
  color: var(--neon-red);
}

/* Code Block */
.code-block {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 245, 255, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.8;
}

.code-block .keyword {
  color: var(--neon-magenta);
}
.code-block .function {
  color: var(--neon-cyan);
}
.code-block .number {
  color: var(--neon-orange);
}
.code-block .string {
  color: var(--neon-green);
}
.code-block .comment {
  color: var(--text-muted);
}

/* Game Header */
.game-header {
  text-align: center;
  padding: var(--space-2xl) 0;
  position: relative;
}

.game-header h1 {
  font-size: 2.5rem;
  background: var(--gradient-rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.game-header .subtitle {
  color: var(--text-secondary);
  font-size: 1.2rem;
}

/* Control Panel */
.control-panel {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin: var(--space-lg) 0;
}

/* Visualization Area */
.viz-area {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 245, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Score Display */
.score-display {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  color: var(--neon-yellow);
  text-shadow: 0 0 10px var(--neon-yellow);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--gradient-cyan);
  transition: width var(--transition-normal);
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--neon-cyan);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
}

.tooltip:hover::after {
  opacity: 1;
}

/* Animations */
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow {
  0%,
  100% {
    box-shadow: 0 0 5px var(--neon-cyan);
  }
  50% {
    box-shadow:
      0 0 20px var(--neon-cyan),
      0 0 30px var(--neon-cyan);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-pulse {
  animation: pulse 2s infinite;
}
.animate-glow {
  animation: glow 2s infinite;
}
.animate-slide-in {
  animation: slideIn 0.5s ease forwards;
}
.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
  .game-header h1 {
    font-size: 1.8rem;
  }

  .array-cell {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
  }

  .control-panel {
    flex-direction: column;
    align-items: stretch;
  }
}

/* Navigation */
.back-btn {
  position: fixed;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-secondary);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid rgba(0, 245, 255, 0.2);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.back-btn:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* Tree Visualization */
.tree-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.tree-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.tree-node-value {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 2px solid var(--neon-cyan);
  border-radius: 50%;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}

.tree-children {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

/* Matrix Grid */
.matrix-grid {
  display: grid;
  gap: 2px;
  background: rgba(0, 245, 255, 0.1);
  padding: 2px;
  border-radius: var(--radius-md);
}

.matrix-cell {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  background: var(--bg-tertiary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.matrix-cell:hover {
  background: rgba(0, 245, 255, 0.2);
}

.matrix-cell.selected {
  background: var(--neon-cyan);
  color: var(--bg-primary);
}

/* Water Visualization */
.water-block {
  position: relative;
  width: 40px;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
}

.water-block .wall {
  background: var(--neon-purple);
  width: 100%;
}

.water-block .water {
  background: rgba(0, 245, 255, 0.5);
  width: 100%;
  position: absolute;
  bottom: 0;
}

/* Slider */
.slider {
  -webkit-appearance: none;
  width: 200px;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--neon-cyan);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--glow-cyan);
}

/* Tab Navigation */
.tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.tab {
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.tab:hover {
  border-color: var(--neon-cyan);
  color: var(--text-primary);
}

.tab.active {
  background: rgba(0, 245, 255, 0.1);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

/* Legend */
.legend {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
  padding: var(--space-md);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--neon-cyan);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-magenta);
}