/* ============================================
   LexisAI — Mature Theme (10+ years old)
   Sleek, professional, neon-accented
   ============================================ */

body.mature-theme {
  --primary: #7B2FF7;
  --primary-light: #9B59FF;
  --primary-dark: #5A1FD4;
  --secondary: #00D4FF;
  --accent: #FF2D95;
  --success: #00FF88;
  --warning: #FFD700;
  --danger: #FF4444;

  --gradient-primary: linear-gradient(135deg, #7B2FF7, #00D4FF);
  --gradient-accent: linear-gradient(135deg, #FF2D95, #FF6B35);
  --gradient-dark: linear-gradient(135deg, #0a0a1e, #1a1a3e);
  
  --bg-primary: #0a0a1e;
  --bg-secondary: #12122e;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(255, 255, 255, 0.08);

  --shadow-glow: 0 0 20px rgba(123, 47, 247, 0.3);
  --shadow-glow-secondary: 0 0 20px rgba(0, 212, 255, 0.3);
}

body.mature-theme .nav-logo-icon {
  box-shadow: 0 0 15px rgba(123, 47, 247, 0.4);
}

/* Neon accent lines */
body.mature-theme .glass-card {
  border-color: rgba(123, 47, 247, 0.15);
}

body.mature-theme .glass-card:hover {
  border-color: rgba(123, 47, 247, 0.3);
}

/* Data-focused stat cards */
body.mature-theme .stat-card {
  border-left: 3px solid transparent;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(123,47,247,0.05));
}

body.mature-theme .stat-card:nth-child(1) { border-left-color: var(--primary); }
body.mature-theme .stat-card:nth-child(2) { border-left-color: var(--secondary); }
body.mature-theme .stat-card:nth-child(3) { border-left-color: var(--accent); }
body.mature-theme .stat-card:nth-child(4) { border-left-color: var(--success); }

body.mature-theme .stat-value {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Professional game cards */
body.mature-theme .game-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(123,47,247,0.05));
  border: 1px solid rgba(123, 47, 247, 0.15);
}

body.mature-theme .game-card:hover {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(123,47,247,0.1), rgba(0,212,255,0.05));
  box-shadow: 0 0 20px rgba(123, 47, 247, 0.2);
}

body.mature-theme .game-card .game-icon {
  font-size: 1.8rem;
}

/* Progress bar */
.progress-mature {
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.progress-mature-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-primary);
  transition: width var(--transition-slow);
}

/* Accuracy meter */
.accuracy-meter {
  position: relative;
  width: 120px;
  height: 120px;
}

.accuracy-meter svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.accuracy-meter circle {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
}

.accuracy-meter .bg {
  stroke: rgba(255, 255, 255, 0.1);
}

.accuracy-meter .fill {
  stroke: url(#matureGradient);
  transition: stroke-dashoffset 1s ease;
}

.accuracy-meter .value {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
}

/* Keyboard shortcut hints */
.shortcut-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
}

/* Graph / chart container */
.chart-container {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Session history table */
.session-table {
  width: 100%;
  border-collapse: collapse;
}

.session-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.session-table td {
  padding: var(--space-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.session-table tr:hover td {
  background: rgba(123, 47, 247, 0.05);
}

/* Developer mode indicator */
.dev-badge {
  position: fixed;
  bottom: 20px;
  left: 20px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 217, 61, 0.15);
  border: 1px solid rgba(255, 217, 61, 0.3);
  color: #FFD700;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 9999;
  display: none;
}

.dev-badge.visible {
  display: block;
}