/* ==========================================================================
   Design System & Styling - Cyberpunk Dark Theme (Glassmorphism)
   ========================================================================== */

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --card-bg: rgba(20, 28, 48, 0.6);
  --card-border: rgba(255, 255, 255, 0.06);
  
  /* Curated Palette */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-cyan: #06b6d4;     /* Normal active / secondary accent */
  --accent-green: #10b981;    /* Streaks / stats success */
  --accent-amber: #f59e0b;    /* Warning / special bonus highlight */
  --accent-indigo: #6366f1;   /* Main theme accent */
  --accent-violet: #8b5cf6;   /* Hot numbers highlight */
  --accent-red: #ef4444;      /* High urgency / warning */
  
  /* Status Color states for Ball grid */
  --ball-cold: #334155;
  --ball-normal: #1e293b;
  --ball-hot: #8b5cf6;
  --ball-selected: #06b6d4;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow-cyan: 0 0 15px rgba(6, 182, 212, 0.4);
  --shadow-glow-violet: 0 0 15px rgba(139, 92, 246, 0.4);
  --shadow-glow-green: 0 0 15px rgba(16, 185, 129, 0.4);
  --shadow-glow-amber: 0 0 15px rgba(245, 158, 11, 0.4);
}

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

body {
  font-family: 'Outfit', 'Noto Sans TC', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 45%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-indigo);
}

/* Common Layout Helpers */
.hidden {
  display: none !important;
}

.text-amber { color: var(--accent-amber); }
.text-cyan { color: var(--accent-cyan); }
.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }

/* Premium Glassmorphism Card Style */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 24px;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 35px -8px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   Header & Top Promo Banner
   ========================================================================== */
.top-promo-banner {
  background: linear-gradient(90deg, #4f46e5 0%, #7c3aed 50%, #0891b2 100%);
  color: #fff;
  padding: 8px 12px;
  font-size: 0.9rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
  position: relative;
  z-index: 100;
}

.top-promo-banner .banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.glow-icon {
  animation: pulse-glow 2s infinite alternate;
}

@keyframes pulse-glow {
  0% { transform: scale(1); filter: drop-shadow(0 0 2px rgba(255,255,255,0.6)); }
  100% { transform: scale(1.1); filter: drop-shadow(0 0 8px rgba(255,255,255,1)); }
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 30px 0 20px 0;
  padding-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.app-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #fff 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.app-header .subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* Online Pulse Dot */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 6px 14px;
  border-radius: 30px;
}

.status-text {
  font-size: 0.8rem;
  color: var(--accent-green);
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-dot 1.6s infinite;
}

@keyframes pulse-dot {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

/* ==========================================================================
   Filter & Control Panel
   ========================================================================== */
.control-panel {
  margin-bottom: 24px;
}

.panel-header {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  align-items: flex-end;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group label i {
  margin-right: 4px;
}

.form-group input, .form-group select {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-smooth);
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

.time-range-inputs {
  display: flex;
  align-items: center;
  gap: 10px;
}

.time-range-inputs span {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.time-range-inputs input {
  padding: 10px;
}

/* Custom Buttons */
.primary-btn {
  background: linear-gradient(135deg, var(--accent-indigo) 0%, var(--accent-violet) 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.primary-btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   KPI Dashboard Card Indicators
   ========================================================================== */
.kpi-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.kpi-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
}

.kpi-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.blue-glow {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--accent-indigo);
  box-shadow: inset 0 0 10px rgba(99, 102, 241, 0.1);
}

.green-glow {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
  box-shadow: inset 0 0 10px rgba(16, 185, 129, 0.1);
}

.amber-glow {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--accent-amber);
  box-shadow: inset 0 0 10px rgba(245, 158, 11, 0.1);
}

.kpi-info h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 4px;
}

.kpi-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ==========================================================================
   Prediction Dashboard 選號推薦
   ========================================================================== */
.prediction-section {
  margin-bottom: 30px;
}

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(90deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.prediction-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 900px) {
  .prediction-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

/* Main Compound Recommended Card */
.main-prediction {
  position: relative;
  border: 1px solid rgba(99, 102, 241, 0.2);
  background: linear-gradient(145deg, rgba(20, 28, 48, 0.8) 0%, rgba(9, 13, 26, 0.8) 100%);
}

.main-prediction::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-indigo), var(--accent-violet));
  border-radius: 16px 16px 0 0;
}

.card-badge {
  position: absolute;
  top: 20px;
  right: 24px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--accent-violet);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 30px;
  box-shadow: var(--shadow-glow-violet);
}

.main-prediction h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* Recommended Balls Display Area */
.recommended-balls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  min-height: 52px;
  align-items: center;
}

.ball-placeholder {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.9rem;
}

/* Styling for recommendation chips/balls */
.rec-ball {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  background: radial-gradient(circle at 30% 30%, #2a3b5c 0%, #111a2e 100%);
  border: 2px solid var(--accent-cyan);
  color: #fff;
  box-shadow: 0 4px 10px rgba(6, 182, 212, 0.25), var(--shadow-glow-cyan);
  animation: ball-entrance 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28) both;
}

.rec-ball.super-num {
  border-color: var(--accent-amber);
  background: radial-gradient(circle at 30% 30%, #f59e0b 0%, #78350f 100%);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.25), var(--shadow-glow-amber);
}

@keyframes ball-entrance {
  0% { transform: scale(0.6); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.strategy-tips {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid rgba(99, 102, 241, 0.1);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
}

.strategy-tips i {
  color: var(--accent-indigo);
  margin-top: 2px;
}

.strategy-tips span {
  color: var(--text-secondary);
}

/* Sub cards layout */
.sub-prediction-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sub-card {
  padding: 16px 20px;
}

.sub-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.small-balls {
  min-height: 38px;
  gap: 8px;
  margin-bottom: 0;
}

.small-balls .rec-ball {
  width: 34px;
  height: 34px;
  font-size: 0.9rem;
}

/* Colors for sub types */
#rec-cold-balls .rec-ball {
  border-color: var(--accent-cyan);
}

#rec-hot-balls .rec-ball {
  border-color: var(--accent-violet);
  box-shadow: 0 4px 8px rgba(139, 92, 246, 0.2), var(--shadow-glow-violet);
}

#rec-streak-balls .rec-ball {
  border-color: var(--accent-green);
  box-shadow: 0 4px 8px rgba(16, 185, 129, 0.2), var(--shadow-glow-green);
}

/* ==========================================================================
   Tab Navigation & Multi-Tab Content
   ========================================================================== */
.analysis-tabs-container {
  margin-bottom: 30px;
}

.tab-headers {
  display: flex;
  padding: 6px;
  border-radius: 12px;
  margin-bottom: 18px;
  gap: 10px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 16px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  outline: none;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: #fff;
  background: var(--accent-indigo);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fade-in 0.3s ease;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   TAB 1: 80 Number Grid Heatmap
   ========================================================================== */
.heatmap-card {
  padding: 24px;
}

.heatmap-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 15px;
}

.heatmap-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot.cold { background-color: var(--accent-cyan); box-shadow: var(--shadow-glow-cyan); }
.legend-dot.normal { background-color: #1e293b; }
.legend-dot.hot { background-color: var(--accent-violet); box-shadow: var(--shadow-glow-violet); }

/* Ball Grid layout */
.balls-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

@media (min-width: 480px) {
  .balls-grid { grid-template-columns: repeat(8, 1fr); }
}

@media (min-width: 768px) {
  .balls-grid { grid-template-columns: repeat(10, 1fr); gap: 10px; }
}

/* Interactive Ball Element in Grid */
.grid-ball-container {
  aspect-ratio: 1;
  position: relative;
  cursor: pointer;
  perspective: 600px;
}

.grid-ball {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--ball-normal);
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  position: relative;
}

.grid-ball .ball-num {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.grid-ball .ball-count {
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-top: 1px;
}

/* Colors based on heat classes */
.grid-ball.heat-cold {
  border-color: rgba(6, 182, 212, 0.3);
  background: radial-gradient(circle at 30% 30%, #1e293b 0%, #083344 100%);
}
.grid-ball.heat-cold .ball-num {
  color: var(--accent-cyan);
}

.grid-ball.heat-hot {
  border-color: rgba(139, 92, 246, 0.4);
  background: radial-gradient(circle at 30% 30%, #581c87 0%, #1e1b4b 100%);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.1);
}
.grid-ball.heat-hot .ball-num {
  color: #f4f4f5;
  text-shadow: 0 0 5px rgba(255,255,255,0.4);
}
.grid-ball.heat-hot .ball-count {
  color: #c084fc;
}

/* Hover and active states */
.grid-ball-container:hover .grid-ball {
  transform: translateY(-4px) scale(1.08);
  border-color: rgba(255,255,255,0.3);
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
  z-index: 10;
}

/* Tooltip on Ball Hover */
.ball-tooltip {
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.75rem;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.8);
  transition: all 0.2s ease;
  z-index: 100;
}

.ball-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: #0f172a;
}

.grid-ball-container:hover .ball-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.ball-tooltip-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 2px;
}
.ball-tooltip-row:last-child {
  margin-bottom: 0;
}
.tooltip-val {
  font-weight: 600;
  color: var(--accent-cyan);
}

/* ==========================================================================
   TAB 2: Trend Charts
   ========================================================================== */
.chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 900px) {
  .chart-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.chart-card {
  padding: 24px;
}

.chart-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 20px;
  border-left: 3px solid var(--accent-indigo);
  padding-left: 10px;
}

.chart-container {
  position: relative;
  height: 320px;
  width: 100%;
}

/* ==========================================================================
   TAB 3: Expected Value (EV) Strategy Calculator
   ========================================================================== */
.strategy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 900px) {
  .strategy-grid {
    grid-template-columns: 1.1fr 1fr;
  }
}

.strategy-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 12px;
}

/* Form layouts inside Calculator */
.calc-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.radio-group {
  display: flex;
  gap: 16px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 10px 16px;
  flex: 1;
  justify-content: center;
  transition: var(--transition-smooth);
}

.radio-label:hover {
  border-color: rgba(255,255,255,0.2);
}

.radio-label input {
  display: none;
}

.radio-label input:checked + span {
  color: var(--accent-indigo);
  font-weight: 600;
}

.radio-label:has(input:checked) {
  border-color: var(--accent-indigo);
  background: rgba(99, 102, 241, 0.05);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.1);
}

.badge-promo {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Calculator Results Display */
.calc-results {
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 20px;
}

.calc-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 15px;
}

.calc-summary-val {
  text-align: right;
}

.calc-ev-num {
  font-size: 1.5rem;
  font-weight: 800;
}

.calc-ev-num.negative {
  color: var(--accent-red);
}

.calc-ev-num.positive {
  color: var(--accent-green);
  text-shadow: var(--shadow-glow-green);
}

.calc-rate {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Payout probability breakdown table */
.calc-table-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
}

.calc-table th, .calc-table td {
  padding: 8px 10px;
  font-size: 0.8rem;
  text-align: left;
}

.calc-table th {
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-weight: 600;
}

.calc-table td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.calc-table tr:last-child td {
  border-bottom: none;
}

/* Strategy Doc styling */
.strategy-doc {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.doc-section {
  border-left: 3px solid rgba(255, 255, 255, 0.1);
  padding-left: 14px;
}

.doc-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.doc-section p, .doc-section li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.doc-section ul {
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.doc-section li strong {
  color: var(--text-primary);
}

/* Highlight boxes */
.doc-section.highlight-green {
  border-color: var(--accent-green);
  background: rgba(16, 185, 129, 0.04);
  padding: 14px;
  border-radius: 0 8px 8px 0;
}

.doc-section.warning-red {
  border-color: var(--accent-red);
  background: rgba(239, 68, 68, 0.04);
  padding: 14px;
  border-radius: 0 8px 8px 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.app-footer {
  margin-top: 40px;
  padding: 30px 0 50px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.app-footer p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.app-footer .warning-text {
  color: var(--accent-red);
  font-size: 0.75rem;
  margin-top: 10px;
  font-weight: 600;
}

/* ==========================================================================
   Responsiveness
   ========================================================================== */
@media (max-width: 600px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  
  .status-indicator {
    align-self: flex-start;
  }
  
  .tab-headers {
    flex-direction: column;
    gap: 5px;
  }
  
  .tab-btn {
    width: 100%;
  }
  
  .heatmap-header {
    flex-direction: column;
    align-items: flex-start;
  }
}