/* ==========================================================================
   VadeAudio AI - Design System & Main Styles
   ========================================================================== */

:root {
  /* Color Palette - Sober Editorial Legal-Tech Theme */
  --bg-primary: #0b0d12;
  --bg-surface: #11141a;
  --bg-surface-elevated: #151922;
  --bg-card: #11141a;
  --bg-card-hover: #151922;

  --accent-gold: #c7983c;
  --accent-amber: #c7983c;
  --accent-gold-soft: rgba(199, 152, 60, 0.12);
  --accent-gold-border: rgba(199, 152, 60, 0.28);

  /* Functional Colors (Used strictly when semantic context demands) */
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #38bdf8;

  /* Typography Colors */
  --text-main: #f3f4f6;
  --text-primary: #f3f4f6;
  --text-muted: #717784;
  --text-secondary: #a1a7b3;
  --text-subtle: #525866;

  /* Borders & Dividers */
  --border-light: #242936;
  --border-subtle: #191d26;
  --border-amber: rgba(199, 152, 60, 0.25);

  /* Elevation & Radius */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-pill: 9999px;

  /* Layout Heights */
  --header-height: 56px;
  --player-height: 62px;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-legal: 'Lora', 'Merriweather', Georgia, serif;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-smooth: 0.2s ease;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  background: transparent;
  border: none;
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

body.dark-theme {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Layout Grid */
.app-layout {
  display: flex;
  flex-direction: row;
  height: 100vh;
  width: 100vw;
  background-color: var(--bg-primary);
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Sidebar Navigation (260px Fixed Width Premium SaaS Shell)
   -------------------------------------------------------------------------- */
.sidebar-nav {
  width: 260px;
  min-width: 260px;
  max-width: 260px;
  flex-shrink: 0;
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  z-index: 100;
  transition: transform var(--transition-smooth);
}

.sidebar-header {
  padding: 16px 18px 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  flex-shrink: 0;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gold-soft);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.brand-text h1 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
  margin: 0;
}

.badge-ai {
  font-size: 0.62rem;
  font-weight: 700;
  background: var(--accent-gold-soft);
  border: 1px solid var(--accent-gold-border);
  color: var(--accent-gold);
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

/* Sidebar Search (Integrated & Accessible) */
.sidebar-search {
  padding: 10px 14px 6px 14px;
  flex-shrink: 0;
}

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
  pointer-events: none;
}

.search-wrapper input {
  width: 100%;
  padding: 7px 50px 7px 30px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.8rem;
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.search-wrapper input:focus {
  background: #181d28;
  border-color: var(--accent-gold);
}

.search-wrapper input::placeholder {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.cmd-palette-badge {
  position: absolute;
  right: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 5px;
  border-radius: 4px;
  cursor: pointer;
  line-height: 1;
}

.btn-clear {
  position: absolute;
  right: 30px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
}

/* Scrollable Sidebar Content */
.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 6px 10px 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-light) transparent;
}

.sidebar-scroll::-webkit-scrollbar {
  width: 4px;
}
.sidebar-scroll::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 4px;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.section-title, .nav-group-title {
  font-size: 0.67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-subtle);
  margin: 10px 8px 4px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.law-list, .study-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.law-tab-btn, .nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 7px 10px;
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-family);
  font-size: 0.83rem;
  font-weight: 400;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.law-tab-btn i, .nav-item i {
  font-size: 0.88rem;
  width: 18px;
  color: var(--text-muted);
  text-align: center;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

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

.law-tab-btn:hover i, .nav-item:hover i {
  color: var(--text-primary);
}

.law-tab-btn.active, .nav-item.active {
  background: rgba(199, 152, 60, 0.08);
  border-left-color: var(--accent-gold);
  color: #ffffff;
  font-weight: 600;
}

.law-tab-btn.active i, .nav-item.active i {
  color: var(--accent-gold);
}

/* Sidebar Footer (User Account Pill) */
.sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-shrink: 0;
}

.sidebar-user-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  padding: 4px;
  border-radius: var(--radius-sm);
  flex: 1;
  min-width: 0;
}

.sidebar-user-pill:hover {
  background: rgba(255, 255, 255, 0.03);
}

.user-avatar-badge {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-gold);
  flex-shrink: 0;
}

.user-info-text {
  min-width: 0;
  flex: 1;
}

.user-info-text strong {
  display: block;
  font-size: 0.78rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-info-text span {
  display: block;
  font-size: 0.67rem;
  color: var(--accent-gold);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Right Workspace Main Area
   -------------------------------------------------------------------------- */
.workspace-body {
  flex: 1;
  min-width: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background-color: var(--bg-primary);
}

/* Top App Header */
.app-header {
  height: var(--header-height);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  z-index: 50;
  flex-shrink: 0;
  gap: 16px;
}

.header-left-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.active-badge-status {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
  display: inline-block;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.badge-unread {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ef4444;
  color: #fff;
  font-size: 0.62rem;
  padding: 2px 5px;
  border-radius: 10px;
  font-weight: 700;
}

/* Buttons Standardized */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 7px 15px;
  background: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  color: #0b0d12;
  font-family: var(--font-family);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: #d8a847;
  border-color: #d8a847;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: #1c2230;
  border-color: var(--text-muted);
}

.btn-icon {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-light);
}

/* --------------------------------------------------------------------------
   Main Content Views & Central Container
   -------------------------------------------------------------------------- */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 28px 36px 120px 36px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.view-panel {
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
}

/* --------------------------------------------------------------------------
   Dashboard Stat Cards Grid (4 Columns Metric Cards)
   -------------------------------------------------------------------------- */
.stats-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

@media (max-width: 1024px) {
  .stats-overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .stats-overview-grid {
    grid-template-columns: 1fr;
  }
}

.stat-card-premium {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  transition: all var(--transition-fast);
}

.stat-card-premium:hover {
  background: var(--bg-surface-elevated);
  border-color: rgba(199, 152, 60, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.stat-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.stat-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.stat-card-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.stat-card-sub {
  font-size: 0.72rem;
  color: var(--text-subtle);
  margin-top: 2px;
}

.stat-icon-blue { color: #38bdf8; font-size: 0.95rem; }
.stat-icon-green { color: #10b981; font-size: 0.95rem; }
.stat-icon-gold { color: #c7983c; font-size: 0.95rem; }
.stat-icon-amber { color: #f59e0b; font-size: 0.95rem; }

.hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Law Reader Banner (Editorial & Sober)
   -------------------------------------------------------------------------- */
.law-meta-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  gap: 20px;
  flex-wrap: wrap;
}

.law-info {
  flex: 1;
  min-width: 280px;
}

.law-badge-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.law-code-tag {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-gold);
  background: var(--accent-gold-soft);
  border: 1px solid var(--accent-gold-border);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.updated-badge {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.updated-badge i {
  color: var(--color-success);
  font-size: 0.7rem;
}

.law-info h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  letter-spacing: -0.3px;
}

.law-subtitle {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.law-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  color: #0b0d12;
  font-family: var(--font-family);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-primary:hover {
  background: #d8a847;
  border-color: #d8a847;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Chapter Tabs Navigation (Sleek Pills)
   -------------------------------------------------------------------------- */
.chapter-tabs-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.chapter-btn {
  padding: 6px 13px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition-fast);
}

.chapter-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.chapter-btn.active {
  background: var(--bg-surface-elevated);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Articles Container — Continuous Legal Document Flow
   -------------------------------------------------------------------------- */
.articles-container {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-card {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-subtle);
  border-radius: 0;
  padding: 24px 28px;
  transition: background var(--transition-fast);
  position: relative;
}

.article-card:last-child {
  border-bottom: none;
}

.article-card:hover {
  background: rgba(255, 255, 255, 0.015);
}

/* Karaoke Active Reading Highlight */
.article-card.reading-active {
  background: rgba(199, 152, 60, 0.04);
  border-left: 3px solid var(--accent-gold);
}

.art-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.art-number {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.art-number i {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.article-card.reading-active .art-number i {
  color: var(--accent-gold);
}

.tag-oab {
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Simplified Article Actions Toolbar (Max 4 actions) */
.art-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.btn-art-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-art-action:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.btn-art-play {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--accent-gold-soft);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-sm);
  color: var(--accent-gold);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-art-play:hover {
  background: var(--accent-gold);
  color: #0b0d12;
}

.btn-art-explain {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-art-explain:hover, .btn-art-explain.active {
  background: rgba(199, 152, 60, 0.1);
  border-color: var(--accent-gold-border);
  color: var(--accent-gold);
}

.btn-art-more {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: var(--transition-fast);
}

.btn-art-more:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* Article More Options Dropdown Menu */
.art-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: 4px;
  min-width: 170px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.art-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 400;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: var(--transition-fast);
}

.art-dropdown-item i {
  font-size: 0.82rem;
  width: 16px;
  text-align: center;
  color: var(--text-muted);
}

.art-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}

.art-dropdown-item.active {
  color: var(--accent-gold);
}

.art-dropdown-item.active i {
  color: var(--accent-gold);
}

/* --------------------------------------------------------------------------
   Article Body & Legal Editorial Typography
   -------------------------------------------------------------------------- */
.art-body {
  margin-top: 8px;
}

.art-subtitle {
  font-family: var(--font-family);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 10px;
  letter-spacing: -0.1px;
}

.art-caput, .art-paragraph, .art-inciso {
  font-family: var(--font-legal);
  font-size: 1.04rem;
  line-height: 1.75;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.art-paragraph {
  text-indent: 1.8rem;
  color: #e5e7eb;
}

.art-inciso {
  padding-left: 1.8rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Professor Explica & Summaries (Neutral, Sober & Collapsed by Default)
   -------------------------------------------------------------------------- */
.art-teacher-box {
  margin-top: 14px;
  padding: 14px 18px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  line-height: 1.6;
  transition: var(--transition-fast);
}

.art-teacher-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.art-teacher-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--accent-gold);
}

.art-teacher-box p {
  color: var(--text-secondary);
  margin: 0;
}

.art-extra-tools {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

.btn-toggle-summary {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.btn-toggle-summary:hover {
  color: var(--text-primary);
}

.summary-expandable-box {
  margin-top: 10px;
  padding: 14px 18px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
}

/* Audio Karaoke Highlight Token */
.highlight-speaking {
  background: rgba(199, 152, 60, 0.25);
  color: #fff;
  padding: 2px 4px;
  border-radius: 4px;
  box-shadow: 0 0 8px rgba(199, 152, 60, 0.3);
}

/* --------------------------------------------------------------------------
   Playlists, Flashcards & Analytics Views
   -------------------------------------------------------------------------- */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.view-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.playlists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.playlist-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.playlist-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* Flashcard Styles */
.flashcard-card-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.flashcard-box {
  width: 100%;
  max-width: 650px;
  background: var(--bg-card);
  border: 1px solid var(--border-amber);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.flashcard-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.15);
  padding: 4px 12px;
  border-radius: 100px;
}

.flashcard-question-wrap {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.btn-audio-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-amber);
  color: #000;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.flashcard-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fc-eval-btns {
  display: flex;
  gap: 12px;
}

.btn-eval {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  cursor: pointer;
}

.btn-wrong { background: rgba(239, 68, 68, 0.2); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.4); }
.btn-good { background: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }

/* Analytics Grid */
.analytics-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.bg-amber-glow { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.bg-blue-glow { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.bg-purple-glow { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.bg-green-glow { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }

.stat-data h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
}

.stat-data p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Utilities */
.text-amber { color: var(--accent-amber); }
.text-green { color: var(--accent-green); }

/* ==========================================================================
   VADE MECUM DIGITAL - ESTILOS OFICIAIS & MODAL DE LEITURA
   ========================================================================== */
.vade-header-banner {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(13, 16, 24, 0.95));
  border: 1px solid var(--border-amber);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 20px;
}

.vade-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.vade-search-wrapper {
  margin-bottom: 20px;
}

.vade-search-box {
  position: relative;
  width: 100%;
}

.vade-search-box input {
  width: 100%;
  padding: 14px 44px 14px 46px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-amber);
  border-radius: 12px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.vade-search-box input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-amber);
}

.vade-search-box .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-amber);
  font-size: 1rem;
}

.vade-search-highlight {
  background: rgba(245, 158, 11, 0.35);
  color: #fff;
  border-radius: 3px;
  padding: 0 4px;
  font-weight: 700;
}

.vade-nav-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.vade-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  color: var(--text-muted);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.vade-tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.vade-tab-btn.active {
  background: rgba(245, 158, 11, 0.18);
  border-color: var(--border-amber);
  color: var(--accent-amber);
}

/* Grid de Legislações Oficiais */
.vade-laws-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.vade-law-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.vade-law-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-amber);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
}

.vade-law-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.vade-law-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.badge-official {
  font-size: 0.7rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 3px 8px;
  border-radius: 100px;
}

.vade-law-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.vade-law-number {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.vade-law-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Modal de Leitura do Artigo */
.vade-modal-container {
  max-width: 850px;
  width: 94%;
  background: rgba(18, 22, 32, 0.98);
  border: 1px solid var(--border-amber);
  border-radius: 18px;
  padding: 26px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.vade-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 14px;
}

.vade-modal-breadcrumb {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.vade-modal-source-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: underline;
  margin-top: 4px;
}

.vade-modal-actions-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.btn-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 100px;
  font-family: var(--font-family);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.btn-action-play {
  background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold));
  color: #000;
}
.btn-action-play:hover { transform: scale(1.04); box-shadow: var(--shadow-glow); }

.btn-action-explain {
  background: rgba(168, 85, 247, 0.18);
  border-color: rgba(168, 85, 247, 0.4);
  color: #c084fc;
}
.btn-action-explain:hover { background: #a855f7; color: #fff; }

.btn-action-note {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--accent-amber);
}
.btn-action-note:hover { background: var(--accent-amber); color: #000; }

.btn-action-fav {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-light);
  color: var(--text-muted);
}
.btn-action-fav.active, .btn-action-fav:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.btn-action-highlight {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
}
.btn-action-highlight:hover { background: #10b981; color: #000; }

.btn-action-copy {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.35);
  color: #38bdf8;
}
.btn-action-copy:hover { background: #38bdf8; color: #000; }

.vade-modal-scrollable {
  overflow-y: auto;
  padding-right: 8px;
  flex: 1;
}

.vade-official-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 14px;
}

.vade-official-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: #10b981;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 768px) {
  .vade-modal-actions-bar {
    gap: 6px;
  }
  .btn-action-pill {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   ETAPA 15: POLIMENTO VISUAL, MOBILE NAVIGATION & COMMAND PALETTE
   ========================================================================== */

/* 1. Grouped Sidebar Styles */
.nav-group-title {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  padding: 10px 12px 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 2. Skeleton Loading Shimmer */
.skeleton-box {
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 3. Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 999;
  justify-content: space-around;
  align-items: center;
  padding: 0 4px;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: all 0.2s;
  flex: 1;
}

.mobile-nav-item i {
  font-size: 1.1rem;
}

.mobile-nav-item.active, .mobile-nav-item:hover {
  color: var(--accent-amber);
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: flex;
  }
  .app-layout {
    padding-bottom: 64px;
  }
}

/* 4. Global Mini Player (Floating Bottom Bar) */
.global-mini-player {
  position: fixed;
  bottom: 68px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 600px;
  background: rgba(18, 24, 38, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-amber);
  border-radius: 100px;
  padding: 8px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6), 0 0 20px rgba(245,158,11,0.25);
  z-index: 998;
  animation: slideUpMini 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUpMini {
  from { transform: translate(-50%, 20px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

/* 5. Command Palette Modal */
.cmd-palette-box {
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(25px);
  border: 1px solid var(--border-amber);
  border-radius: 16px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.8), 0 0 30px rgba(245,158,11,0.2);
  width: 92%;
  max-width: 620px;
  overflow: hidden;
}

.cmd-search-input {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: var(--text-main);
  font-size: 1.05rem;
  outline: none;
}

.cmd-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-radius: 8px;
  color: var(--text-main);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s;
}

.cmd-result-item:hover, .cmd-result-item.selected {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
}

/* 6. Onboarding Button Choices */
.btn-onboarding-choice:hover, .btn-semester-choice:hover {
  border-color: var(--accent-amber) !important;
  background: rgba(245, 158, 11, 0.08) !important;
}

/* 7. Mobile Bottom Navigation Bar (Etapa 22) */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: calc(58px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: rgba(11, 14, 20, 0.98);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1000;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
  justify-content: space-around;
}

.mobile-nav-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 0.7rem;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  padding: 6px 0;
  transition: all 0.15s ease;
}

.mobile-nav-btn i {
  font-size: 1.15rem;
}

.mobile-nav-btn.active, .mobile-nav-btn:hover {
  color: var(--accent-amber);
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: grid;
  }
  .app-sidebar {
    display: none !important;
  }
  .app-layout {
    padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px));
  }
}

/* ==========================================================================
   ETAPA 33: MODO LEITURA INTELIGENTE & MODO FOCO
   ========================================================================== */
.smart-term-highlight {
  border-bottom: 2px dotted var(--accent-amber);
  color: #fbbf24;
  font-weight: 600;
  cursor: pointer;
  padding: 0 2px;
  border-radius: 2px;
  transition: all 0.2s ease;
}

.smart-term-highlight:hover {
  background: rgba(245, 158, 11, 0.2);
  color: #fff;
}

.reading-paragraph {
  margin-bottom: 1.4em;
  text-align: justify;
  text-justify: inter-word;
}

.reading-side-tab.active {
  background: var(--accent-amber) !important;
  color: #000 !important;
  font-weight: 700;
}

@media (max-width: 900px) {
  #reading-split-grid {
    grid-template-columns: 1fr !important;
  }
  #reading-side-drawer {
    height: auto !important;
    position: static !important;
  }
}

/* ==========================================================================
   DIREITO VISUAL & MAPAS MENTAIS JURÍDICOS (SaaS Editorial & Jurídico Premium)
   ========================================================================== */
.mindmap-view-panel {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 1. Header do Módulo & Toolbar Superior */
.mindmap-module-hero {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  width: 100%;
}

.module-hero-intro {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.module-hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent-gold);
}

.module-hero-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2px 0 4px 0;
  line-height: 1.25;
  letter-spacing: -0.4px;
}

.module-hero-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 780px;
  margin: 0;
}

.mindmap-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
}

.toolbar-nav-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-toolbar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-toolbar:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-toolbar.active {
  background: var(--accent-gold-soft);
  border-color: var(--accent-gold);
  color: var(--text-primary);
  font-weight: 600;
}

.btn-toolbar.active i {
  color: var(--accent-gold);
}

.btn-toolbar-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  padding: 0 20px;
  background: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: 8px;
  color: #0b0d12;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 10px rgba(199, 152, 60, 0.18);
}

.btn-toolbar-primary:hover {
  background: #d4a548;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(199, 152, 60, 0.32);
}

/* 2. Bloco do Mapa Ativo */
.mindmap-active-header-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  width: 100%;
}

.active-map-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.active-map-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.active-map-subject {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  padding: 3px 10px;
  border-radius: 4px;
}

.active-map-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.active-map-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}

.active-map-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 4px 0 0 0;
}

.active-map-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.active-map-secondary-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-map-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-map-action.secondary {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.btn-map-action.secondary:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-map-action.primary {
  background: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  color: #0b0d12;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(199, 152, 60, 0.18);
}

.btn-map-action.primary:hover {
  background: #d4a548;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(199, 152, 60, 0.32);
}

/* 3. Canvas Container & Visual Flow */
.mindmap-dynamic-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.mindmap-visual-flow {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
}

/* NÓ CENTRAL */
.mindmap-central-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-top: 3px solid var(--accent-gold);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  width: 100%;
}

.central-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.central-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.central-area-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  padding: 3px 10px;
  border-radius: 4px;
}

.central-card-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.25;
}

.central-card-category {
  font-size: 0.92rem;
  color: var(--accent-gold);
  margin-top: -6px;
  font-weight: 500;
}

.central-card-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  align-items: center;
}

.central-source-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.details-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.details-source-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.source-text {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
}

.btn-inline-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--accent-gold);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-inline-action:hover {
  background: var(--accent-gold-soft);
  border-color: var(--accent-gold);
  transform: translateX(2px);
}

.central-retention-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.retention-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.retention-pct {
  font-size: 0.95rem;
  font-weight: 700;
}

.retention-pct.high {
  color: var(--color-success);
}

.retention-pct.low {
  color: var(--color-error);
}

.retention-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.retention-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.retention-bar-fill.high {
  background: var(--color-success);
}

.retention-bar-fill.low {
  background: var(--color-error);
}

/* 4. Conexões do Conceito & Grid Semântico */
.mindmap-connections-heading {
  margin: 8px 0 2px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.connections-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.2px;
}

.connections-subtitle {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin: 0;
}

.mindmap-connections-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  width: 100%;
}

.span-full {
  grid-column: 1 / -1;
  width: 100%;
}

.connection-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  width: 100%;
}

.connection-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}

.connection-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.connection-tag {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
}

.connection-tag.weakness {
  color: #f87171;
}

.weakness-score {
  font-size: 0.75rem;
  font-weight: 600;
  color: #f87171;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
}

.connection-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.connection-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.article-node-title, .jurisprudence-node-title, .weakness-node-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.requirements-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.requirements-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.req-bullet {
  color: var(--accent-gold);
  font-size: 1.1rem;
  line-height: 1;
  margin-top: -1px;
}

.connection-action-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  background: var(--accent-gold-soft);
  border-left: 3px solid var(--accent-gold);
  border-radius: 0 4px 4px 0;
  font-size: 0.82rem;
  color: var(--accent-gold);
}

.connection-action-hint.weakness {
  background: rgba(239, 68, 68, 0.08);
  border-left-color: #ef4444;
  color: #f87171;
}

.connection-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.connection-provenance {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.btn-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--accent-gold);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-card-link:hover {
  background: var(--accent-gold-soft);
  border-color: var(--accent-gold);
  transform: translateX(2px);
}

/* 5. Barra Discreta de Ações Rápidas */
.mindmap-quick-actions-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 16px 22px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  width: 100%;
  margin-top: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.quick-actions-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-right: 6px;
}

.btn-quick-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-quick-action:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--accent-gold);
}

/* 6. Empty State */
.mindmap-empty-state {
  background: var(--bg-surface);
  border: 1px dashed var(--border-light);
  border-radius: 12px;
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  max-width: 600px;
  margin: 40px auto;
  width: 100%;
}

.empty-icon {
  font-size: 2.2rem;
  color: var(--accent-gold);
  margin-bottom: 4px;
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.empty-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 440px;
  margin: 0;
}

/* 7. Árvore Textual Acessível */
.mindmap-tree-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
}

.mindmap-tree-header {
  margin-bottom: 12px;
}

.mindmap-tree-title {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.mindmap-tree-pre {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.7;
  font-family: monospace;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  padding: 18px;
  border-radius: 8px;
  white-space: pre-wrap;
}

/* ==========================================================================
   Mobile & Tablet Responsiveness (PWA, Android & iPhones)
   ========================================================================== */
@media (max-width: 768px) {
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
    width: 100% !important;
  }

  .desktop-only {
    display: none !important;
  }

  .mobile-only {
    display: inline-flex !important;
  }

  .mobile-only-brand {
    display: flex !important;
  }

  .app-layout {
    flex-direction: column !important;
    height: 100vh !important;
    width: 100vw !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }

  /* Sidebar vira Gaveta Off-Canvas Deslizante */
  .sidebar-nav {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: 290px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    z-index: 100000 !important;
    transform: translateX(-100%) !important;
    box-shadow: 6px 0 30px rgba(0, 0, 0, 0.9) !important;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1) !important;
    background: var(--bg-surface) !important;
  }

  .sidebar-nav.mobile-open {
    transform: translateX(0) !important;
  }

  .sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 99999;
  }

  .workspace-body {
    width: 100vw !important;
    max-width: 100vw !important;
    min-width: 0 !important;
    height: 100vh !important;
    flex: 1 !important;
    overflow-x: hidden !important;
  }

  .app-header {
    padding: 0 10px !important;
    height: 52px !important;
    gap: 4px !important;
    justify-content: space-between !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }

  .header-left-status {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    flex-shrink: 0 !important;
  }

  .header-actions {
    display: flex !important;
    align-items: center !important;
    gap: 4px !important;
    flex-shrink: 0 !important;
  }

  #btn-daily-goal {
    padding: 4px 6px !important;
    font-size: 0.70rem !important;
    white-space: nowrap !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 3px !important;
    height: 30px !important;
    line-height: 1 !important;
  }

  #btn-daily-goal span {
    white-space: nowrap !important;
    font-size: 0.70rem !important;
  }

  #header-study-time {
    padding: 4px 6px !important;
    font-size: 0.70rem !important;
    white-space: nowrap !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 3px !important;
    height: 30px !important;
    line-height: 1 !important;
  }

  #btn-open-notifications,
  #btn-open-help {
    padding: 4px 6px !important;
    height: 30px !important;
    min-width: 28px !important;
  }

  .main-content {
    padding: 12px 10px 100px 10px !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
  }

  .view-panel {
    gap: 14px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
  }

  .stats-overview-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }

  .stat-card-premium {
    padding: 10px 12px !important;
  }

  .stat-card-value {
    font-size: 1.05rem !important;
  }

  .stat-card-sub {
    font-size: 0.65rem !important;
  }

  /* Leitor Vade Mecum Mobile */
  .law-meta-banner {
    padding: 12px 14px !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .law-info {
    min-width: 100% !important;
    width: 100% !important;
  }

  .law-actions {
    width: 100% !important;
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 6px !important;
  }

  .btn-primary, .btn-secondary {
    padding: 7px 10px !important;
    font-size: 0.78rem !important;
  }

  /* Artigos no Mobile: Quebra elegante sem corte lateral */
  .articles-container {
    border-radius: 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .article-card {
    padding: 14px 12px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .art-header {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
    margin-bottom: 10px !important;
    width: 100% !important;
  }

  .art-number {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    width: 100% !important;
    flex-wrap: wrap !important;
  }

  .art-actions {
    width: 100% !important;
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 6px !important;
  }

  .btn-art-action,
  .btn-art-play,
  .btn-art-explain,
  .btn-art-more,
  .btn-art-jurisprudence,
  .btn-listen-q,
  .btn-play-jur,
  .btn-fav-jur {
    padding: 5px 9px !important;
    font-size: 0.74rem !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }

  .art-caput, .art-paragraph, .art-inciso, .art-body, .article-card p {
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    word-break: break-word !important;
    max-width: 100% !important;
  }

  .chapter-tabs-scroll {
    padding-bottom: 6px !important;
    -webkit-overflow-scrolling: touch !important;
    max-width: 100% !important;
    overflow-x: auto !important;
  }

  /* Universal Mobile Responsive Grid Stacking (Android, Apple iOS iPhone & Tablets) */
  .commented-laws-split-grid,
  .notebook-split-layout,
  #reading-split-grid,
  #qgen-split-grid,
  #case-active-panel,
  .view-panel div[style*="grid-template-columns"],
  .view-panel section[style*="grid-template-columns"],
  .app-content div[style*="grid-template-columns"],
  .modal-body div[style*="grid-template-columns"],
  div[style*="grid-template-columns"] {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .view-panel div > div[style*="background:var(--bg-card)"],
  .view-panel div[style*="background:var(--bg-card)"] {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 16px !important;
  }

  /* Safe Area Insets for Apple iPhone (Notch & Home Bar) */
  @supports (padding: max(0px)) {
    .persistent-player-bar {
      padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
      height: calc(60px + env(safe-area-inset-bottom)) !important;
    }
    .app-header {
      padding-top: max(0px, env(safe-area-inset-top)) !important;
    }
  }
}

@media (min-width: 769px) {
  .mobile-only {
    display: none !important;
  }
  .mobile-only-brand {
    display: none !important;
  }
  .sidebar-backdrop {
    display: none !important;
  }
}