/* ============================================
   TRIE MASTER - CSS Styles
   A cyberpunk-inspired educational game UI
   ============================================ */

:root {
  /* Core Colors - Cyberpunk Terminal Theme */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2332;
  --bg-card: #151d2b;

  /* Neon Accents */
  --neon-cyan: #00f5ff;
  --neon-pink: #ff006e;
  --neon-green: #39ff14;
  --neon-yellow: #ffd700;
  --neon-purple: #bf00ff;
  --neon-orange: #ff6b35;

  /* Text Colors */
  --text-primary: #e8f4f8;
  --text-secondary: #8b9cb3;
  --text-muted: #5a6b7d;

  /* Node Colors */
  --node-default: #2a3a4d;
  --node-active: #00f5ff;
  --node-visited: #39ff14;
  --node-eow: #ff006e;
  --node-new: #ffd700;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00f5ff 0%, #bf00ff 100%);
  --gradient-secondary: linear-gradient(135deg, #ff006e 0%, #ffd700 100%);
  --gradient-success: linear-gradient(135deg, #39ff14 0%, #00f5ff 100%);

  /* Shadows */
  --shadow-glow-cyan: 0 0 20px rgba(0, 245, 255, 0.3);
  --shadow-glow-pink: 0 0 20px rgba(255, 0, 110, 0.3);
  --shadow-glow-green: 0 0 20px rgba(57, 255, 20, 0.3);

  /* Typography */
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

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

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

/* App Container */
.app-container {
  min-height: 100vh;
  position: relative;
}

/* Screens */
.screen {
  display: none;
  min-height: 100vh;
}

.screen.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

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

/* ============================================
   MAIN MENU STYLES
   ============================================ */

#main-menu {
  position: relative;
  overflow: hidden;
}

.menu-background {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse at 20% 20%,
      rgba(0, 245, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 80%,
      rgba(191, 0, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(255, 0, 110, 0.05) 0%,
      transparent 70%
    ),
    var(--bg-primary);
}

.floating-nodes {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.floating-nodes::before,
.floating-nodes::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(0, 245, 255, 0.1) 0%,
    transparent 70%
  );
  animation: float 20s infinite ease-in-out;
}

.floating-nodes::before {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.floating-nodes::after {
  bottom: 10%;
  right: 10%;
  animation-delay: -10s;
  background: radial-gradient(
    circle,
    rgba(255, 0, 110, 0.1) 0%,
    transparent 70%
  );
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(50px, -30px) scale(1.1);
  }
  50% {
    transform: translate(-30px, 50px) scale(0.9);
  }
  75% {
    transform: translate(-50px, -20px) scale(1.05);
  }
}

.menu-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--spacing-xl);
}

/* Title */
.title {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.title-icon {
  font-size: 4rem;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.title-text {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 60px rgba(0, 245, 255, 0.5);
  letter-spacing: 0.1em;
}

.subtitle {
  font-family: var(--font-body);
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Game Grid */
.game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  max-width: 1000px;
  width: 100%;
}

@media (max-width: 900px) {
  .game-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .game-grid {
    grid-template-columns: 1fr;
  }

  .title-text {
    font-size: 2.5rem;
  }

  .title-icon {
    font-size: 2.5rem;
  }
}

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

.game-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.game-card:hover {
  transform: translateY(-8px);
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.game-card:hover::before {
  opacity: 0.05;
}

.game-card:nth-child(2):hover {
  border-color: var(--neon-pink);
  box-shadow: var(--shadow-glow-pink);
}

.game-card:nth-child(3):hover {
  border-color: var(--neon-green);
  box-shadow: var(--shadow-glow-green);
}

.game-card:nth-child(4):hover {
  border-color: var(--neon-yellow);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.game-card:nth-child(5):hover {
  border-color: var(--neon-purple);
  box-shadow: 0 0 20px rgba(191, 0, 255, 0.3);
}

.game-card:nth-child(6):hover {
  border-color: var(--neon-orange);
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.game-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: var(--spacing-xs);
  position: relative;
  z-index: 1;
  letter-spacing: 0.05em;
}

.game-card:nth-child(2) h3 {
  color: var(--neon-pink);
}
.game-card:nth-child(3) h3 {
  color: var(--neon-green);
}
.game-card:nth-child(4) h3 {
  color: var(--neon-yellow);
}
.game-card:nth-child(5) h3 {
  color: var(--neon-purple);
}
.game-card:nth-child(6) h3 {
  color: var(--neon-orange);
}

.game-card p {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

/* ============================================
   GAME SCREEN STYLES
   ============================================ */

.game-screen {
  display: none;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-primary);
}

.game-screen.active {
  display: flex;
}

/* Game Header */
.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(0, 245, 255, 0.2);
}

.game-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.back-btn {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.back-btn:hover {
  background: rgba(0, 245, 255, 0.1);
  box-shadow: var(--shadow-glow-cyan);
}

.header-spacer {
  width: 100px;
}

/* Game Layout */
.game-layout {
  display: grid;
  grid-template-columns: 350px 1fr;
  flex: 1;
  overflow: hidden;
}

@media (max-width: 1000px) {
  .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .control-panel {
    max-height: 40vh;
    overflow-y: auto;
  }
}

/* Control Panel */
.control-panel {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  overflow-y: auto;
  border-right: 1px solid rgba(0, 245, 255, 0.1);
}

.panel-section {
  margin-bottom: var(--spacing-lg);
}

.panel-section h3 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid rgba(0, 245, 255, 0.2);
}

/* Word Queue */
.word-queue {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.word-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.word-tag.active {
  background: rgba(0, 245, 255, 0.2);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.word-tag.completed {
  background: rgba(57, 255, 20, 0.1);
  border-color: var(--neon-green);
  color: var(--neon-green);
}

/* Current Word Display */
.current-word {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  gap: var(--spacing-xs);
  justify-content: center;
  min-height: 60px;
  align-items: center;
}

.char-box {
  width: 40px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 2px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.char-box.processed {
  background: rgba(57, 255, 20, 0.2);
  border-color: var(--neon-green);
  color: var(--neon-green);
}

.char-box.current {
  background: rgba(0, 245, 255, 0.2);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  animation: currentPulse 1s infinite;
}

@keyframes currentPulse {
  0%,
  100% {
    box-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
  }
  50% {
    box-shadow: 0 0 25px rgba(0, 245, 255, 0.8);
  }
}

/* Code Display */
.code-display {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
}

.code-display pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.code-display code {
  display: block;
}

.highlight-line {
  display: inline;
  transition: all var(--transition-fast);
}

.highlight-line.active {
  background: rgba(0, 245, 255, 0.2);
  color: var(--neon-cyan);
  padding: 2px 4px;
  border-radius: 3px;
}

/* Buttons */
.btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.btn-primary:hover {
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid rgba(0, 245, 255, 0.3);
}

.btn-secondary:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.control-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Status Box */
.status-box,
.result-box {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-secondary);
}

.status-box.success,
.result-box.success {
  background: rgba(57, 255, 20, 0.1);
  border: 1px solid var(--neon-green);
  color: var(--neon-green);
}

.status-box.error,
.result-box.error {
  background: rgba(255, 0, 110, 0.1);
  border: 1px solid var(--neon-pink);
  color: var(--neon-pink);
}

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

/* Input */
.game-input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border: 2px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  transition: all var(--transition-fast);
}

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

.game-input::placeholder {
  color: var(--text-muted);
}

/* Words List */
.words-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  max-height: 120px;
  overflow-y: auto;
  padding: var(--spacing-sm);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}

.words-list .word-tag {
  font-size: 0.75rem;
  padding: 4px 8px;
}

/* Test Cases */
.test-cases {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.test-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.test-btn.passed {
  background: rgba(57, 255, 20, 0.1);
  border-color: var(--neon-green);
  color: var(--neon-green);
}

.test-btn.failed {
  background: rgba(255, 0, 110, 0.1);
  border-color: var(--neon-pink);
  color: var(--neon-pink);
}

/* ============================================
   VISUALIZATION AREA
   ============================================ */

.visualization-area {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.trie-container {
  width: 100%;
  height: 100%;
  overflow: auto;
}

.trie-container svg {
  width: 100%;
  height: 100%;
  min-height: 500px;
}

/* SVG Trie Styles */
.trie-node {
  cursor: pointer;
  transition: all var(--transition-fast);
}

.trie-node circle {
  fill: var(--node-default);
  stroke: rgba(0, 245, 255, 0.5);
  stroke-width: 2;
  transition: all var(--transition-fast);
}

.trie-node.active circle {
  fill: rgba(0, 245, 255, 0.3);
  stroke: var(--neon-cyan);
  stroke-width: 3;
  filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.6));
}

.trie-node.visited circle {
  fill: rgba(57, 255, 20, 0.2);
  stroke: var(--neon-green);
  filter: drop-shadow(0 0 8px rgba(57, 255, 20, 0.5));
}

.trie-node.eow circle {
  fill: rgba(255, 0, 110, 0.3);
  stroke: var(--neon-pink);
  stroke-width: 3;
}

.trie-node.new circle {
  fill: rgba(255, 215, 0, 0.3);
  stroke: var(--neon-yellow);
  animation: newNodePulse 0.5s ease;
}

@keyframes newNodePulse {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.trie-node text {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  fill: var(--text-primary);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.trie-node .node-label {
  font-size: 12px;
  fill: var(--text-secondary);
}

.trie-node .count-label {
  font-size: 10px;
  fill: var(--neon-yellow);
}

.trie-node .eow-indicator {
  font-size: 10px;
  fill: var(--neon-pink);
}

.trie-edge {
  stroke: rgba(0, 245, 255, 0.3);
  stroke-width: 2;
  fill: none;
  transition: all var(--transition-fast);
}

.trie-edge.active {
  stroke: var(--neon-cyan);
  stroke-width: 3;
  filter: drop-shadow(0 0 5px rgba(0, 245, 255, 0.5));
}

.trie-edge.visited {
  stroke: var(--neon-green);
  filter: drop-shadow(0 0 5px rgba(57, 255, 20, 0.5));
}

.edge-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  fill: var(--neon-cyan);
}

/* ============================================
   GAME-SPECIFIC STYLES
   ============================================ */

/* Auto-Complete Game */
.autocomplete-wrapper {
  position: relative;
}

.suggestions-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--neon-cyan);
  border-radius: var(--radius-md);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  display: none;
}

.suggestions-dropdown.active {
  display: block;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.suggestion-item {
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid rgba(0, 245, 255, 0.1);
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: rgba(0, 245, 255, 0.1);
}

.suggestion-item .prefix {
  color: var(--neon-cyan);
}

.suggestion-item .suffix {
  color: var(--text-secondary);
}

/* Applications List */
.applications-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.app-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* DFS Log */
.dfs-log {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  max-height: 150px;
  overflow-y: auto;
  color: var(--text-secondary);
}

.dfs-log .log-entry {
  padding: 2px 0;
  border-bottom: 1px solid rgba(0, 245, 255, 0.05);
}

.dfs-log .log-entry.found {
  color: var(--neon-green);
}

/* Node Visualizer */
.trie-container.interactive .trie-node:hover circle {
  filter: drop-shadow(0 0 15px rgba(0, 245, 255, 0.8));
}

.node-info-panel {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.node-info-panel p {
  margin-bottom: var(--spacing-sm);
}

.node-info-panel .info-label {
  color: var(--text-muted);
}

.node-info-panel .info-value {
  color: var(--neon-cyan);
}

.node-info-panel .info-value.true {
  color: var(--neon-green);
}

.node-info-panel .info-value.false {
  color: var(--neon-pink);
}

.node-structure-display {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.node-structure-display pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================
   ANIMATIONS
   ============================================ */

.animate-insert {
  animation: nodeInsert 0.5s ease;
}

@keyframes nodeInsert {
  0% {
    transform: scale(0) rotate(-180deg);
    opacity: 0;
  }
  60% {
    transform: scale(1.2) rotate(10deg);
  }
  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}

.animate-traverse {
  animation: nodeTraverse 0.3s ease;
}

@keyframes nodeTraverse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

.animate-success {
  animation: successPulse 0.5s ease;
}

@keyframes successPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.7);
  }
  100% {
    box-shadow: 0 0 0 20px rgba(57, 255, 20, 0);
  }
}

.animate-fail {
  animation: failShake 0.4s ease;
}

@keyframes failShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20%,
  60% {
    transform: translateX(-10px);
  }
  40%,
  80% {
    transform: translateX(10px);
  }
}

/* ============================================
   SCROLLBAR STYLES
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(0, 245, 255, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 245, 255, 0.5);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .game-header h2 {
    font-size: 1rem;
  }

  .control-panel {
    padding: var(--spacing-md);
  }

  .panel-section h3 {
    font-size: 0.75rem;
  }
}