/* ===== variables.css ===== */
:root {
  /* Fortuna Branding — Purple/Indigo */
  --navy: #4c1d95;
  --navy-light: #6b21a8;
  --navy-dark: #1e1b4b;
  --gold: #a855f7;
  --gold-light: #c084fc;
  --gold-dark: #7e22ce;

  /* Neutrals */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: #ffffff;
  --bg-sidebar: #0f0a1e;
  --bg-sidebar-hover: #1e1b4b;
  --bg-sidebar-active: #4c1d95;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-inverse: #f8fafc;
  --text-sidebar: #cbd5e1;
  --text-sidebar-active: #ffffff;

  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  /* Semantic colors */
  --success: #10b981;
  --success-bg: #ecfdf5;
  --error: #dc2626;
  --error-bg: #fef2f2;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --info: #7c3aed;
  --info-bg: #f5f3ff;

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

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 0px;
  --transition-speed: 0.2s;
}

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

html, body {
  height: 100%;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  overflow: hidden;
}

#app {
  width: 100%;
  height: 100%;
}

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

/* Scrollbar Styling */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ========== Layout ========== */
#app-container {
  display: flex;
  width: 100%;
  height: 100vh;
}

/* Sidebar */
#sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sidebar-brand .brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-brand .brand-text {
  color: var(--text-inverse);
}

.sidebar-brand .brand-text h2 {
  font-size: var(--font-size-lg);
  margin: 0;
  letter-spacing: 0.5px;
}

.sidebar-brand .brand-text span {
  font-size: var(--font-size-xs);
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-profile {
  padding: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-profile-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-speed);
}

.sidebar-profile-card:hover {
  background: var(--bg-sidebar-hover);
}

.sidebar-profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--navy-dark);
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-profile-name {
  color: var(--text-sidebar);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-sm) 0;
}

.sidebar-section-label {
  padding: var(--space-md) var(--space-lg) var(--space-xs);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-tertiary);
  font-weight: 600;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  color: var(--text-sidebar);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-speed);
  border-left: 3px solid transparent;
  user-select: none;
}

.sidebar-nav-item:hover {
  background: var(--bg-sidebar-hover);
  color: var(--text-sidebar-active);
}

.sidebar-nav-item.active {
  background: var(--bg-sidebar-active);
  color: var(--gold);
  border-left-color: var(--gold);
}

.sidebar-nav-item .nav-icon {
  width: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-nav-item .nav-icon svg {
  width: 16px;
  height: 16px;
}

/* Main Content */
#main-content {
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  background: var(--bg-primary);
}

.page {
  display: none;
  padding: var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
  animation: fadeIn 0.2s ease-in;
}

.page.active {
  display: block;
}

#page-dashboard {
  position: relative;
  z-index: 0;
}

#page-dashboard::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../assets/dashboard-bg.png') center/cover no-repeat;
  opacity: 0.35;
  z-index: -1;
  pointer-events: none;
}

#page-chatbot.active {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--space-xl) - var(--space-xl));
  overflow: hidden;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page::after {
  content: '\201CIn those days there was no king in Israel; everyone did what was right in his own eyes.\201D\A\2014  Judges 17:6';
  display: block;
  text-align: center;
  white-space: pre-line;
  padding: var(--space-xxl) 0 var(--space-md);
  margin-top: auto;
  color: var(--text-secondary);
  font-style: italic;
  font-size: var(--font-size-sm);
  opacity: 0.6;
}

.page-header {
  margin-bottom: var(--space-xl);
}

.page-header h1 {
  color: var(--navy);
  margin-bottom: var(--space-xs);
}

.page-header p {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

/* Full-page layout (login, etc.) */
.full-page {
  display: none;
  height: 100vh;
  width: 100%;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.full-page.active {
  display: flex;
}

/* Login background image */
.login-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.login-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}

.login-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(30, 27, 75, 0.82) 0%,
    rgba(76, 29, 149, 0.75) 50%,
    rgba(88, 28, 135, 0.82) 100%
  );
  backdrop-filter: blur(2px);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.card-header h3 {
  color: var(--navy);
}

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

@media (max-width: 1100px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ========== Login Page ========== */
.login-container {
  text-align: center;
  max-width: 500px;
  width: 100%;
  padding: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.login-logo {
  margin-bottom: var(--space-xl);
}

.login-logo .logo-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  margin-bottom: var(--space-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 3px rgba(168, 85, 247, 0.3);
}

.login-logo h1 {
  color: white;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-xs);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.login-logo p {
  color: var(--gold-light);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.profile-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.profile-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-speed);
  text-align: left;
}

.profile-card:hover {
  background: rgba(255,255,255,0.18);
  border-color: var(--gold);
  transform: translateY(-1px);
}

.profile-card .avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--navy-dark);
  flex-shrink: 0;
}

.profile-card .profile-info {
  flex: 1;
}

.profile-card .profile-info h3 {
  color: white;
  font-size: var(--font-size-base);
  margin-bottom: 2px;
}

.profile-card .profile-info span {
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
}

/* Utility classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.text-center { text-align: center; }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-secondary { color: var(--text-secondary); }
.text-gold { color: var(--gold); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.font-bold { font-weight: 700; }
.hidden { display: none !important; }

/* ========== PDF Viewer ========== */
.pdf-viewer-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: calc(100vh - 160px);
  background: var(--bg-tertiary);
}

.pdf-embed {
  width: 100%;
  height: 100%;
  border: none;
}

/* ========== Role Picker (Sign-Up) ========== */
.role-picker {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.role-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-speed);
  text-align: left;
}

.role-card:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.3);
}

.role-card.selected {
  border-color: var(--gold);
  background: rgba(212,175,55,0.12);
}

.role-card input[type="radio"] {
  display: none;
}

.role-card-icon {
  font-size: var(--font-size-xl);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.role-card-title {
  color: white;
  font-weight: 600;
  font-size: var(--font-size-sm);
  display: block;
}

.role-card-desc {
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
  display: block;
}

/* ========== Pending Approval Screen ========== */
.pending-container {
  text-align: center;
  max-width: 480px;
  width: 100%;
  padding: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.pending-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  margin-bottom: var(--space-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.pending-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(12px);
}

.pending-quote {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  border-left: 3px solid var(--gold);
}

.pending-quote p {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: var(--font-size-lg);
  font-style: italic;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.pending-quote cite {
  color: var(--gold);
  font-size: var(--font-size-sm);
  font-style: normal;
  letter-spacing: 0.5px;
}

.pending-status {
  color: white;
}

.pending-icon {
  font-size: 32px;
  margin-bottom: var(--space-sm);
  opacity: 0.7;
}

.pending-status h2 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
  color: white;
}

.pending-status p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.6);
}

/* ========== Admin Table (Performance Page) ========== */
.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.admin-table th:first-child,
.admin-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--bg-primary);
}

.admin-table thead th:first-child {
  z-index: 3;
}

.admin-table tbody tr:hover td:first-child {
  background: var(--bg-secondary);
}

.admin-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.admin-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.admin-table tbody tr:hover {
  background: var(--bg-secondary);
}

.admin-user-cell {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.admin-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-xs);
  color: var(--navy-dark);
  flex-shrink: 0;
}

.admin-user-name {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.admin-user-email {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.admin-tags-cell {
  max-width: 160px;
}

.admin-actions-cell {
  white-space: nowrap;
}

.badge-sm {
  font-size: 10px;
  padding: 1px 5px;
}

/* ========== Performance Page ========== */
.perf-chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

.perf-user-row {
  cursor: pointer;
  transition: background var(--transition-speed);
}

.perf-user-row:hover {
  background: var(--bg-secondary) !important;
}

.perf-user-header {
  border-left: 4px solid var(--gold);
}

.perf-back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

@media (max-width: 900px) {
  .perf-chart-container {
    height: 220px;
  }
}

/* ========== User Agreement Walkthrough ========== */
#user-agreement {
  background: #fff;
  overflow: hidden;
}

.agreement-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.agreement-step-indicator {
  text-align: center;
  color: #666;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.agreement-progress-track {
  margin-top: var(--space-xs);
  height: 4px;
  background: #e5e5e5;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.agreement-progress-fill {
  height: 100%;
  background: var(--navy);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.agreement-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-xl);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.agreement-section-title {
  color: #111;
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid #111;
}

.agreement-section-body {
  color: #111;
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

.agreement-section-body h4 {
  color: #111;
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.agreement-section-body p {
  margin-bottom: var(--space-md);
}

.agreement-section-body ul {
  margin: 0 0 var(--space-md) var(--space-lg);
  list-style: disc;
}

.agreement-section-body li {
  margin-bottom: var(--space-xs);
}

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

.agreement-btn-reject {
  background: transparent;
  color: #999;
  border: 1px solid #ddd;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-speed);
  line-height: 1.4;
  white-space: normal;
  word-wrap: break-word;
  width: 100%;
  text-align: center;
}

.agreement-btn-reject:hover {
  color: var(--error);
  border-color: var(--error);
  background: rgba(239,68,68,0.05);
}

.agreement-btn-accept {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  white-space: normal;
  word-wrap: break-word;
  line-height: 1.4;
  text-align: center;
  width: 100%;
}

@media (max-width: 900px) {
  .agreement-container {
    max-width: 90vw;
    padding: var(--space-lg) var(--space-lg);
  }
}

@media (max-width: 600px) {
  .agreement-container {
    max-width: 100%;
    padding: var(--space-md);
    max-height: 95vh;
  }
  .agreement-card {
    padding: var(--space-md);
  }
  .agreement-section-body {
    font-size: var(--font-size-xs);
  }
  .agreement-btn-accept,
  .agreement-btn-reject {
    font-size: var(--font-size-xs);
    padding: var(--space-sm) var(--space-md);
  }
}

/* ===================== Tab Bar ===================== */
.tab-bar {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 2px solid var(--border);
  padding-bottom: 0;
}
.tab-btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  background: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ===================== Topic Rules / Assignments ===================== */
.tr-checkbox-grid {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
}
.tr-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  cursor: pointer;
  font-size: var(--font-size-sm);
}
.tr-checkbox-label input[type="checkbox"] {
  flex-shrink: 0;
}
.tr-picker-scroll {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
}
.tr-assignment-card:hover {
  border-color: var(--gold);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.tr-reading-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
}
.tr-reading-item summary {
  cursor: pointer;
  font-size: var(--font-size-sm);
}
.tr-reading-content {
  margin-top: var(--space-sm);
  font-size: var(--font-size-xs);
  line-height: 1.6;
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
}
.tr-mc-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xs);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: border-color 0.2s, background 0.2s;
}
.tr-mc-option:hover { border-color: var(--gold); }
.tr-mc-correct {
  border-color: var(--success) !important;
  background: var(--success-bg);
}
.tr-mc-wrong {
  border-color: var(--error) !important;
  background: var(--error-bg);
}
.tr-mc-disabled { pointer-events: none; opacity: 0.8; }
.text-success { color: var(--success); }
.text-error { color: var(--error); }

/* ===================== Assignment Generation & Exam ===================== */
.tr-gen-section {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  background: var(--bg-secondary);
}
.tr-gen-section .flex { flex-wrap: wrap; }
.tr-gen-controls {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.tr-gen-controls .form-group { margin-bottom: 0; }
.badge-error {
  background: var(--error);
  color: #fff;
}
.badge-ai {
  background: var(--navy);
  color: #fff;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: var(--radius-full);
}
.badge-manual {
  background: var(--gold);
  color: var(--navy-dark);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: var(--radius-full);
}
.tr-q-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
}
.tr-q-card summary {
  cursor: pointer;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.tr-q-card[open] summary {
  border-bottom: 1px solid var(--border);
}
.tr-q-card .tr-q-body {
  padding: var(--space-md);
}
.tr-q-card .tr-q-body .form-group {
  margin-bottom: var(--space-sm);
}
.tr-q-card .tr-q-body .form-input {
  font-size: var(--font-size-sm);
}
.tr-exam-result {
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  margin-bottom: var(--space-lg);
}
.tr-exam-result.passed {
  background: var(--success-bg);
  border: 2px solid var(--success);
}
.tr-exam-result.failed {
  background: var(--error-bg);
  border: 2px solid var(--error);
}
.tr-exam-result h2 {
  margin-bottom: var(--space-xs);
}
.tr-exam-result .score {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}
.tr-exam-result.passed .score { color: var(--success); }
.tr-exam-result.failed .score { color: var(--error); }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.text-right { text-align: right; }
.mb-xs { margin-bottom: var(--space-xs); }

/* ========== Question Bank Page ========== */
.qb-tabs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}
.qb-tab {
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-speed);
}
.qb-tab:hover { border-color: var(--gold); color: var(--text-primary); }
.qb-tab.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.data-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}
.data-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}
.data-table tr:hover { background: var(--bg-secondary); }
.btn-xs {
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
.text-xs { font-size: var(--font-size-xs); }
.text-error { color: var(--error); }

/* Exam intro centering */
#page-fiae-exam.active,
#page-practice-exam.active {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 2 * var(--space-xl));
}

/* Exam lock — disable sidebar navigation */
#sidebar.sidebar-locked .sidebar-nav-item {
  pointer-events: none;
  opacity: 0.35;
}
#sidebar.sidebar-locked .sidebar-profile-card {
  pointer-events: none;
  opacity: 0.35;
}

/* ===== components.css ===== */
/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-speed);
  white-space: nowrap;
  user-select: none;
  line-height: 1.5;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--navy);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: var(--navy-light);
}

.btn-gold {
  background: var(--gold);
  color: var(--navy-dark);
  font-weight: 600;
}
.btn-gold:hover:not(:disabled) {
  background: var(--gold-light);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--border-color);
}
.btn-outline:hover:not(:disabled) {
  background: var(--bg-secondary);
  border-color: var(--navy);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--error);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
}

.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ========== Form Elements ========== */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background: var(--bg-card);
  transition: border-color var(--transition-speed);
  line-height: 1.5;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(76, 29, 149, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--navy);
}

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.5;
}

.badge-navy { background: var(--navy); color: white; }
.badge-gold { background: var(--gold); color: var(--navy-dark); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-error { background: var(--error-bg); color: var(--error); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }
.badge-ai { background: #f3e8ff; color: #7c3aed; }

/* ========== Tabs ========== */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--space-lg);
}

.tab {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-speed);
  user-select: none;
}

.tab:hover {
  color: var(--navy);
}

.tab.active {
  color: var(--navy);
  border-bottom-color: var(--gold);
}

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.15s ease;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 520px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  color: var(--navy);
}

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
}

/* ========== Toast ========== */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: white;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease;
  max-width: 400px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--error); }
.toast-warning { background: var(--warning); }
.toast-info { background: var(--navy); }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== Progress Ring ========== */
.progress-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.progress-ring svg {
  transform: rotate(-90deg);
}

.progress-ring .ring-bg {
  fill: none;
  stroke: var(--bg-tertiary);
}

.progress-ring .ring-fill {
  fill: none;
  stroke: var(--gold);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s ease;
}

.progress-ring .ring-text {
  position: absolute;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--navy);
}

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

.progress-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

/* ========== Timer ========== */
.exam-timer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--navy);
}

.exam-timer.warning {
  background: var(--warning-bg);
  color: var(--warning);
}

.exam-timer.danger {
  background: var(--error-bg);
  color: var(--error);
}

/* ========== FIAE Dots ========== */
.fiae-dot {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  cursor: pointer;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}
.fiae-dot:hover {
  transform: scale(1.2);
}

/* ========== Chat ========== */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.chat-message {
  display: flex;
  gap: var(--space-md);
  max-width: 85%;
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-message .msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.chat-message.assistant .msg-avatar {
  background: var(--gold);
  color: var(--navy-dark);
}

.chat-message.user .msg-avatar {
  background: var(--navy);
  color: white;
}

.chat-message .msg-bubble {
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.chat-message.assistant .msg-bubble {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-top-left-radius: var(--radius-sm);
}

.chat-message.user .msg-bubble {
  background: var(--navy);
  color: white;
  border-top-right-radius: var(--radius-sm);
}

.msg-bubble .sources {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-color);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.chat-input-area {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.chat-input-area textarea {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  resize: none;
  min-height: 42px;
  max-height: 120px;
  line-height: 1.5;
}

.chat-input-area textarea:focus {
  outline: none;
  border-color: var(--navy);
}

/* ========== Question Card ========== */
.question-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.question-card .question-meta {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.question-card .question-text {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.choices-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.choice-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-speed);
  font-size: var(--font-size-sm);
}

.choice-item:hover {
  border-color: var(--navy-light);
  background: var(--bg-secondary);
}

.choice-item.selected {
  border-color: var(--navy);
  background: rgba(76, 29, 149, 0.05);
}

.choice-item.correct {
  border-color: var(--success);
  background: var(--success-bg);
}

.choice-item.incorrect {
  border-color: var(--error);
  background: var(--error-bg);
}

.choice-item .choice-letter {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-xs);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.choice-item.selected .choice-letter {
  background: var(--navy);
  color: white;
}

.choice-item.correct .choice-letter {
  background: var(--success);
  color: white;
}

.choice-item.incorrect .choice-letter {
  background: var(--error);
  color: white;
}

.question-explanation {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--info-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--info);
}

.question-explanation h4 {
  color: var(--info);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
}

.question-explanation p {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.7;
}

.explanation-choice {
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border-left: 3px solid var(--border-color);
}

.explanation-choice:last-child {
  margin-bottom: 0;
}

.explanation-choice strong {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
}

.explanation-choice p {
  margin: 0;
}

.explanation-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}

.explanation-label.correct {
  background: var(--success-bg);
  color: var(--success);
}

.explanation-label.wrong {
  background: var(--error-bg);
  color: var(--error);
}

.explanation-choice:has(.explanation-label.correct) {
  border-left-color: var(--success);
}

.explanation-choice:has(.explanation-label.wrong) {
  border-left-color: var(--error);
}

/* ========== Essay Editor ========== */
.essay-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  height: calc(100vh - 200px);
}

.essay-prompt-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow-y: auto;
}

.essay-editor-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.essay-editor-panel textarea {
  flex: 1;
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  resize: none;
}

.essay-editor-panel textarea:focus {
  outline: none;
  border-color: var(--navy);
}

.essay-word-count {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  text-align: right;
}

/* ========== Essay Comparison + Chat ========== */
.essay-comparison-wrapper {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
  gap: var(--space-md);
}

.essay-comparison-wrapper .essay-layout {
  flex: 1;
  min-height: 0;
  grid-template-rows: 1fr;
  transition: max-height 0.3s ease;
}

.essay-comparison-wrapper.chat-open .essay-layout {
  flex: 0 0 auto;
  max-height: 35vh;
  overflow-y: auto;
}

.essay-chat-panel {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 300px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}

.essay-chat-panel .essay-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.essay-chat-panel .chat-input-area {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.essay-chat-panel .chat-input-area textarea {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  resize: none;
  min-height: 42px;
  max-height: 120px;
  line-height: 1.5;
}

.essay-chat-panel .chat-input-area textarea:focus {
  outline: none;
  border-color: var(--navy);
}

.btn-summon {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #ffffff;
  font-weight: 600;
  border: none;
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-speed);
  font-size: var(--font-size-lg);
  width: 100%;
  max-width: 400px;
}

.btn-summon:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  background: linear-gradient(135deg, var(--navy-light), var(--navy));
  color: #ffffff;
}

.btn-summon.btn-sm {
  width: auto;
  max-width: none;
  font-size: var(--font-size-xs);
  padding: var(--space-xs) var(--space-sm);
}

.summon-gamaliel-area {
  text-align: center;
  flex-shrink: 0;
  padding: var(--space-md) var(--space-lg);
}

.summon-gamaliel-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  vertical-align: middle;
  margin-left: var(--space-sm);
}

.irac-section {
  padding: var(--space-sm) var(--space-md);
  border-left: 3px solid var(--gold);
  margin-bottom: var(--space-sm);
}

.irac-section h4 {
  color: var(--gold-dark);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
}

/* ========== GK Collapsible Layout ========== */
.gk-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-lg);
  height: calc(100vh - 280px);
  transition: grid-template-columns 0.25s ease;
}

.gk-layout.collapsed {
  grid-template-columns: 0px 1fr;
}

.gk-sidebar {
  overflow: hidden;
  position: relative;
  min-width: 0;
}

.gk-sidebar-inner {
  overflow-y: auto;
  height: 100%;
  padding: var(--space-md);
  width: 280px;
}

.gk-layout.collapsed .gk-sidebar-inner {
  visibility: hidden;
}

.gk-toggle {
  position: absolute;
  top: var(--space-sm);
  right: calc(-1 * var(--space-lg) - 20px);
  z-index: 2;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  transition: all var(--transition-speed);
  padding: 0;
  line-height: 1;
}

.gk-toggle:hover {
  color: var(--navy);
  border-color: var(--navy);
}

/* ========== Document Tree ========== */
.doc-tree {
  list-style: none;
  padding: 0;
}

.doc-tree-item {
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: all var(--transition-speed);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.doc-tree-item:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.doc-tree-item.active {
  background: rgba(76, 29, 149, 0.08);
  color: var(--navy);
  font-weight: 500;
}

.doc-tree-folder {
  font-weight: 600;
  color: var(--text-primary);
}

.doc-tree .children {
  padding-left: var(--space-lg);
}

/* ========== Streak Calendar ========== */
.streak-calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
}

.streak-day {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  position: relative;
}

.streak-day.active {
  background: var(--gold);
}

.streak-day.today {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
}

/* ========== Stat Cards ========== */
.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.stat-card .stat-icon svg {
  width: 24px;
  height: 24px;
}

.stat-card .stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}

.stat-card .stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ========== Loading Spinner ========== */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner-sm {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-color);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 4px;
}

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  color: var(--text-secondary);
}

/* ========== Empty State ========== */
.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-secondary);
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}
.empty-state .empty-icon svg {
  width: 48px;
  height: 48px;
}

.empty-state h3 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

/* ========== Article Typography ========== */
.article-container {
  max-width: 48rem;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.article-title {
  color: var(--navy);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 3px solid var(--gold);
}

.article-body p {
  text-align: justify;
  line-height: 1.9;
  margin-bottom: 1em;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--navy);
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  line-height: 1.3;
}

.article-body h1 { font-size: 1.6em; }
.article-body h2 { font-size: 1.35em; }
.article-body h3 { font-size: 1.15em; }
.article-body h4 { font-size: 1.05em; font-style: italic; }

.article-body blockquote {
  margin: 1.2em 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--gold);
  background: var(--bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-body blockquote p {
  text-align: left;
  margin-bottom: 0.5em;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body a {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 2px;
}

.article-body a:hover {
  color: var(--gold-dark);
}

/* Footnote reference superscripts */
.article-body sup a {
  font-size: 0.75em;
  font-weight: 600;
  color: var(--gold-dark);
  text-decoration: none;
  padding: 0 1px;
}

.article-body sup a:hover {
  color: var(--navy);
  text-decoration: underline;
}

/* Footnote / endnote section (mammoth + PDF) */
.article-body .footnotes,
.article-body ol[role="doc-endnotes"],
.article-body section.footnotes {
  margin-top: 2em;
  padding-top: 1em;
  border-top: 1px solid var(--border-color);
  font-size: 0.85em;
  color: var(--text-secondary);
}

.article-body .footnotes h3 {
  font-size: 1em;
  margin-bottom: 0.5em;
}

.article-body .footnotes p {
  text-align: left;
  margin-bottom: 0.4em;
  line-height: 1.6;
}

/* Mammoth footnote list styling */
.article-body ol li {
  margin-bottom: 0.4em;
  line-height: 1.6;
}

.article-body strong {
  color: var(--navy);
}

.article-body em {
  font-style: italic;
}

/* ========== MC Tutor Inline Chat ========== */
.mc-tutor-btn-wrap {
  display: flex;
  justify-content: center;
  margin-top: var(--space-md);
}

.mc-tutor-container {
  margin-top: var(--space-md);
}

.mc-tutor-chat {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}

.mc-tutor-messages {
  max-height: 280px;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.mc-tutor-welcome {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  padding: var(--space-sm);
}

.mc-tutor-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  object-fit: cover;
}

.mc-tutor-welcome-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
}

.mc-tutor-message {
  max-width: 90%;
}

.mc-tutor-message .msg-avatar {
  width: 28px;
  height: 28px;
  font-size: 10px;
}

.mc-tutor-message .msg-bubble {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.mc-tutor-input-area {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.mc-tutor-input-area textarea {
  flex: 1;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  resize: none;
  min-height: 36px;
  max-height: 100px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
}

.mc-tutor-input-area textarea:focus {
  outline: none;
  border-color: var(--navy);
}

.mc-tutor-error {
  padding: var(--space-md);
  color: var(--error);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* ========== Profile Page ========== */
.profile-page-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.profile-photo-card {
  text-align: center;
}

.profile-photo-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.profile-photo-wrapper {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  overflow: hidden;
  cursor: pointer;
}

.profile-photo {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  object-fit: cover;
  display: block;
}

.profile-photo-placeholder {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--navy-dark);
}

.profile-photo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-speed);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.profile-photo-overlay span {
  color: white;
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.profile-photo-wrapper:hover .profile-photo-overlay {
  opacity: 1;
}

.profile-photo-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.profile-quote-input {
  min-height: 80px;
  font-style: italic;
}

/* Sidebar avatar image */
.sidebar-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
  display: block;
}

.sidebar-profile-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-profile-label {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

@media (max-width: 900px) {
  .profile-page-layout {
    grid-template-columns: 1fr;
  }
}

/* Plain text fallback */
.article-body-plain {
  font-size: var(--font-size-sm);
  line-height: 1.9;
  white-space: pre-wrap;
  color: var(--text-primary);
}

/* ========== Daily Task Manager ========== */
.daily-task {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-light);
  transition: opacity var(--transition-speed);
}

.daily-task:last-child {
  border-bottom: none;
}

.daily-task-completed {
  opacity: 0.5;
}

.daily-task-completed .daily-task-title {
  text-decoration: line-through;
}

.task-checkbox-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
}

.task-checkbox {
  width: 20px;
  height: 20px;
  accent-color: var(--gold);
  cursor: pointer;
}

.task-priority {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.task-priority.priority-high {
  background: var(--error);
}

.task-priority.priority-medium {
  background: var(--warning);
}

.task-priority.priority-low {
  background: var(--text-tertiary);
}

.daily-task-content {
  flex: 1;
  min-width: 0;
}

.daily-task-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.daily-task-desc {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: 2px;
}

.daily-task-go {
  flex-shrink: 0;
}

/* ========== Task Manager ========== */
.task-filter-tabs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.task-filter-tab {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-speed);
  user-select: none;
}

.task-filter-tab:hover {
  color: var(--navy);
  background: var(--bg-tertiary);
}

.task-filter-tab.active {
  background: var(--navy);
  color: white;
}

.task-group-header {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: var(--space-sm) 0 var(--space-xs);
  margin-top: var(--space-sm);
}

.task-group-header.overdue {
  color: var(--error);
}

.task-group-header.today-group {
  color: var(--navy);
}

.task-add-form {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  background: var(--bg-secondary);
}

.task-add-form .form-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: end;
}

.task-add-form .form-row > * {
  flex: 1;
  min-width: 120px;
}

.task-add-form .form-row .form-group {
  margin-bottom: 0;
}

.task-category-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
}

.task-category-badge.cat-mc_practice { background: var(--info-bg); color: var(--info); }
.task-category-badge.cat-essay_writing { background: var(--warning-bg); color: var(--warning); }
.task-category-badge.cat-chapter_reading { background: var(--success-bg); color: var(--success); }
.task-category-badge.cat-bluebook { background: #f3e8ff; color: #7c3aed; }
.task-category-badge.cat-review { background: var(--gold-bg, #fef3c7); color: var(--gold-dark); }
.task-category-badge.cat-general { background: var(--bg-tertiary); color: var(--text-secondary); }

.task-due-label {
  font-size: 10px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.task-due-label.overdue {
  color: var(--error);
  font-weight: 600;
}

.task-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--transition-speed);
  flex-shrink: 0;
}

.daily-task:hover .task-actions {
  opacity: 1;
}

.task-edit-btn,
.task-delete-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--transition-speed);
}

.task-edit-btn:hover {
  background: var(--bg-tertiary);
  color: var(--navy);
}

.task-delete-btn:hover {
  background: var(--error-bg);
  color: var(--error);
}

.task-meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: 2px;
}

.task-recurring-icon {
  font-size: 10px;
  color: var(--text-tertiary);
}

/* Gamaliel Quip Card */
.gamaliel-quip {
  border-left: 4px solid var(--gold) !important;
}

.gamaliel-quip p {
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.7;
  font-size: var(--font-size-sm);
}

.gamaliel-quip-attribution {
  text-align: right;
  color: var(--gold-dark);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-top: var(--space-sm);
}

/* Skeleton Shimmer Animation */
@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

.skeleton-line {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
  height: 14px;
}

.skeleton-ring {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
  flex-shrink: 0;
}

.skeleton-task {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-light);
}

.skeleton-task::before {
  content: '';
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
  flex-shrink: 0;
}

.skeleton-task::after {
  content: '';
  flex: 1;
  height: 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
}

/* ========== Help Page ========== */
.help-layout {
  display: flex;
  gap: var(--space-lg);
  height: calc(100vh - 180px);
  min-height: 400px;
}

.help-manual {
  flex: 3;
  overflow-y: auto;
  padding: var(--space-lg);
}

.help-chat {
  flex: 2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.help-chat .chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.help-toc {
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
  border-bottom: 2px solid var(--gold);
}

.help-toc-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.help-toc-link {
  font-size: var(--font-size-sm);
  color: var(--navy);
  padding: 4px 0;
  cursor: pointer;
  text-decoration: none;
}

.help-toc-link:hover {
  color: var(--gold-dark);
  text-decoration: none;
}

.help-section {
  margin-bottom: var(--space-md);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.help-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  cursor: pointer;
  background: var(--bg-secondary);
  user-select: none;
  transition: background var(--transition-speed);
}

.help-section-header:hover {
  background: var(--bg-tertiary);
}

.help-section-header h3 {
  font-size: var(--font-size-base);
  color: var(--navy);
  margin: 0;
}

.help-arrow {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.help-section-body {
  padding: 0;
}

.help-section-content {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .help-layout {
    flex-direction: column;
    height: auto;
  }
  .help-manual {
    max-height: 50vh;
  }
  .help-chat {
    min-height: 400px;
  }
}

/* ========== Exam Break Overlay ========== */
.break-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  animation: fadeIn 0.3s ease;
}

.break-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-2xl);
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.break-icon {
  font-size: 64px;
  margin-bottom: var(--space-md);
}

.break-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.break-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.break-countdown {
  font-size: 48px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--navy);
  margin-bottom: var(--space-lg);
}

.break-resume-btn {
  width: 100%;
}

.break-resume-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== bluebook.css ===== */
/* ========== Bluebook Exam ========== */

/* Passage text container */
.bb-passage {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: var(--font-size-base);
  line-height: 2;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  user-select: text;
  cursor: text;
  white-space: pre-wrap;
  max-height: calc(100vh - 300px);
  overflow-y: auto;
  position: relative;
}

/* Highlight spans inside the passage */
.bb-highlight {
  position: relative;
  border-radius: 2px;
  padding: 1px 0;
  cursor: pointer;
  transition: background var(--transition-speed);
}

/* User correction highlight during exam */
.bb-highlight-user {
  background: rgba(168, 85, 247, 0.2);
  border-bottom: 2px solid var(--gold);
}

.bb-highlight-user:hover {
  background: rgba(168, 85, 247, 0.35);
}

/* Results view highlights */
.bb-highlight-correct {
  background: rgba(16, 185, 129, 0.2);
  border-bottom: 2px solid var(--success);
}

.bb-highlight-partial {
  background: rgba(217, 119, 6, 0.2);
  border-bottom: 2px solid var(--warning);
}

.bb-highlight-missed {
  background: rgba(220, 38, 38, 0.15);
  border-bottom: 2px solid var(--error);
}

.bb-highlight-false-positive {
  background: rgba(124, 58, 237, 0.15);
  border-bottom: 2px dashed var(--info);
}

/* Numbered badge on highlights — uses data-num + ::after so badge text
   doesn't pollute text-content offsets used by getSelectionOffsets(). */
.bb-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-family);
  color: white;
  margin-left: 2px;
  vertical-align: super;
  line-height: 1;
}

.bb-badge::after {
  content: attr(data-num);
}

.bb-highlight-user .bb-badge { background: var(--gold); color: var(--navy-dark); }
.bb-highlight-correct .bb-badge { background: var(--success); }
.bb-highlight-partial .bb-badge { background: var(--warning); }
.bb-highlight-missed .bb-badge { background: var(--error); }
.bb-highlight-false-positive .bb-badge { background: var(--info); }

/* Correction panel (floating) */
.bb-correction-panel {
  position: absolute;
  z-index: 500;
  width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.15s ease;
}

.bb-cp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  color: var(--navy);
}

.bb-cp-body {
  padding: var(--space-md);
}

.bb-cp-selected {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
  max-height: 80px;
  overflow-y: auto;
}

/* Formatting toolbar */
.bb-cp-toolbar {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-xs);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 3px;
  background: var(--bg-secondary);
}

.bb-tb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 26px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  font-family: 'Georgia', 'Times New Roman', serif;
  transition: all var(--transition-speed);
}

.bb-tb-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.bb-tb-btn.active {
  background: var(--navy);
  color: white;
}

/* Contenteditable correction field */
.bb-cp-correction {
  min-height: 60px;
  max-height: 120px;
  overflow-y: auto;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background: var(--bg-card);
  line-height: 1.6;
  outline: none;
}

.bb-cp-correction:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(76, 29, 149, 0.15);
}

/* Small caps styling */
.bb-smallcaps {
  font-variant: small-caps;
  letter-spacing: 0.03em;
}

.bb-cp-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--border-color);
}

/* Admin rich text editor toolbar (reuses .bb-tb-btn) */
.qb-rte-toolbar {
  display: flex;
  gap: 2px;
  padding: var(--space-xs);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: var(--bg-secondary);
}

.qb-rte {
  border-radius: 0 0 var(--radius-md) var(--radius-md) !important;
}

/* Exam layout: passage + corrections sidebar */
.bb-exam-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-lg);
  height: calc(100vh - 220px);
}

.bb-exam-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.bb-exam-sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Corrections list panel */
.bb-corrections-list {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.bb-corrections-list h4 {
  color: var(--navy);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
}

.bb-correction-item {
  padding: var(--space-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xs);
  position: relative;
}

.bb-correction-item:hover {
  border-color: var(--navy-light);
}

.bb-correction-item .bb-ci-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: var(--gold);
  color: var(--navy-dark);
  font-weight: 700;
  font-size: 10px;
  margin-right: var(--space-xs);
}

.bb-correction-item .bb-ci-original {
  color: var(--error);
  text-decoration: line-through;
  display: block;
  margin: var(--space-xs) 0;
}

.bb-correction-item .bb-ci-correction {
  color: var(--success);
  font-weight: 500;
  display: block;
}

.bb-correction-item .bb-ci-comment {
  color: var(--text-tertiary);
  font-style: italic;
  display: block;
  margin-top: var(--space-xs);
}

.bb-correction-item .bb-ci-actions {
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  display: flex;
  gap: 2px;
}

.bb-correction-item .bb-ci-actions button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  padding: 2px 4px;
  border-radius: var(--radius-sm);
}

.bb-correction-item .bb-ci-actions button:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Passage cards grid */
.bb-passage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.bb-passage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-speed);
  box-shadow: var(--shadow-sm);
}

.bb-passage-card:hover {
  border-color: var(--navy-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.bb-passage-card h3 {
  font-size: var(--font-size-base);
  color: var(--navy);
  margin-bottom: var(--space-sm);
}

.bb-passage-card .bb-card-meta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

/* Instruction bar */
.bb-instruction-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--info-bg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--info);
}

.bb-instruction-bar span:first-child {
  font-size: var(--font-size-lg);
}

/* Exam header bar */
.bb-exam-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.bb-exam-header h2 {
  font-size: var(--font-size-xl);
  color: var(--navy);
}

/* Results view */
.bb-results-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.bb-results-summary .stat-card {
  text-align: center;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-md);
}

.bb-results-legend {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
}

.bb-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

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

.bb-legend-swatch.correct { background: rgba(16, 185, 129, 0.3); border-bottom: 2px solid var(--success); }
.bb-legend-swatch.partial { background: rgba(217, 119, 6, 0.3); border-bottom: 2px solid var(--warning); }
.bb-legend-swatch.missed { background: rgba(220, 38, 38, 0.2); border-bottom: 2px solid var(--error); }
.bb-legend-swatch.false-positive { background: rgba(124, 58, 237, 0.2); border-bottom: 2px dashed var(--info); }

/* Detail panel for results */
.bb-detail-panel {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 420px;
  background: var(--bg-card);
  border-left: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 600;
  display: flex;
  flex-direction: column;
  animation: slideInRight 0.2s ease;
}

.bb-detail-panel .bb-dp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.bb-detail-panel .bb-dp-header h3 {
  color: var(--navy);
  font-size: var(--font-size-base);
}

.bb-detail-panel .bb-dp-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
}

.bb-detail-row {
  margin-bottom: var(--space-md);
}

.bb-detail-row label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.bb-detail-row .bb-dv {
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-primary);
}

.bb-detail-row .bb-dv.error-text {
  color: var(--error);
  text-decoration: line-through;
}

.bb-detail-row .bb-dv.correct-text {
  color: var(--success);
  font-weight: 500;
}

.bb-detail-row .bb-rule-box {
  background: var(--info-bg);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--info);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.6;
}

/* No-select helper for non-passage areas during exam */
.bb-no-select {
  user-select: none;
}

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

/* Difficulty dots */
.bb-difficulty {
  display: inline-flex;
  gap: 3px;
}

.bb-difficulty-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
}

.bb-difficulty-dot.filled {
  background: var(--gold);
}

/* ===== article-viewer.css ===== */
/* ============================
   Article Viewer Component
   ============================ */

.article-viewer {
  display: flex;
  height: calc(100vh - 280px);
  gap: 0;
  position: relative;
}

/* ---- TOC Sidebar ---- */
.av-toc {
  width: 240px;
  min-width: 240px;
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: var(--space-md) 0;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.av-toc-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  padding: 0 var(--space-md) var(--space-sm);
}

.av-toc-item {
  display: block;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all var(--transition-speed);
  line-height: 1.4;
}

.av-toc-item:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.av-toc-item.active {
  color: var(--navy);
  border-left-color: var(--gold);
  background: var(--bg-card);
  font-weight: 500;
}

/* ---- Main Content Area ---- */
.av-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* ---- Toolbar ---- */
.av-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card);
  flex-shrink: 0;
}

.av-search-wrapper {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 400px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 var(--space-sm);
  transition: border-color var(--transition-speed);
}

.av-search-wrapper:focus-within {
  border-color: var(--gold);
}

.av-search-icon {
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.av-search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 6px var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-family);
}

.av-search-input::placeholder {
  color: var(--text-tertiary);
}

.av-search-count {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  white-space: nowrap;
  padding: 0 var(--space-xs);
}

.av-search-nav {
  display: flex;
  gap: 2px;
}

.av-search-nav button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.av-search-nav button:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.av-page-info {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  white-space: nowrap;
  margin-left: auto;
}

.av-nav-btns {
  display: flex;
  gap: var(--space-xs);
}

.av-nav-btns button {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 4px 12px;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-speed);
}

.av-nav-btns button:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: var(--gold);
}

.av-nav-btns button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---- Content Body ---- */
.av-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-xl);
}

.av-section-heading {
  font-size: var(--font-size-2xl);
  color: var(--navy);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--gold);
}

.av-section-content {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-primary);
}

.av-section-content p {
  margin-bottom: var(--space-md);
}

.av-section-content h1,
.av-section-content h2,
.av-section-content h3 {
  color: var(--navy);
  margin: var(--space-lg) 0 var(--space-md);
}

.av-section-content a {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 2px;
}

.av-section-content a:hover {
  color: var(--gold-dark);
}

.av-section-content blockquote {
  border-left: 3px solid var(--gold);
  margin: var(--space-md) 0;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.av-section-content em {
  font-style: italic;
}

.av-section-content strong {
  font-weight: 600;
  color: var(--navy);
}

.av-section-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
}

/* ---- Footnote References (superscripts in body) ---- */
.fn-ref {
  cursor: pointer;
  color: var(--gold-dark);
  font-weight: 600;
  transition: color var(--transition-speed);
}

.fn-ref:hover {
  color: var(--navy);
  text-decoration: underline;
}

/* ---- Footnote Side Panel ---- */
.av-fn-panel {
  width: 0;
  overflow: hidden;
  border-left: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: width 0.3s ease;
  display: flex;
  flex-direction: column;
}

.av-fn-panel.open {
  width: 360px;
  min-width: 360px;
}

.av-fn-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.av-fn-header-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.av-fn-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.av-fn-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.av-fn-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.av-fn-item {
  padding: var(--space-sm) var(--space-sm);
  border-bottom: 1px solid var(--border-light);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}

.av-fn-item.active {
  background: var(--info-bg);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.av-fn-num {
  display: inline-block;
  min-width: 24px;
  font-weight: 700;
  color: var(--gold-dark);
  font-size: var(--font-size-xs);
}

.av-fn-item em {
  font-style: italic;
}

.av-fn-item a {
  color: var(--navy);
  word-break: break-all;
}

/* ---- Search Highlights ---- */
.av-highlight {
  background: rgba(168, 85, 247, 0.2);
  border-radius: 2px;
  padding: 0 1px;
}

.av-highlight.current {
  background: rgba(168, 85, 247, 0.5);
  outline: 2px solid var(--gold);
}

/* ============================
   Dark Mode Overrides
   ============================ */

body.dark .av-toc {
  background: var(--bg-tertiary);
}

body.dark .av-toc-item.active {
  color: var(--gold);
  background: var(--bg-secondary);
}

body.dark .av-toolbar {
  background: var(--bg-card);
}

body.dark .av-search-wrapper {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
}

body.dark .av-search-input {
  color: var(--text-primary);
}

body.dark .av-nav-btns button {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark .av-section-heading {
  color: var(--gold);
}

body.dark .av-section-content strong {
  color: var(--gold);
}

body.dark .av-section-content h1,
body.dark .av-section-content h2,
body.dark .av-section-content h3 {
  color: var(--gold);
}

body.dark .av-section-content a {
  color: var(--gold);
  text-decoration-color: var(--gold-dark);
}

body.dark .av-section-content blockquote {
  background: var(--bg-tertiary);
  border-left-color: var(--gold-dark);
}

body.dark .fn-ref {
  color: var(--gold);
}

body.dark .fn-ref:hover {
  color: var(--gold-light);
}

body.dark .av-fn-panel {
  background: var(--bg-card);
}

body.dark .av-fn-num {
  color: var(--gold);
}

body.dark .av-fn-item.active {
  background: rgba(124, 58, 237, 0.15);
}

body.dark .av-highlight {
  background: rgba(168, 85, 247, 0.3);
}

body.dark .av-highlight.current {
  background: rgba(168, 85, 247, 0.6);
}

/* ============================
   Responsive
   ============================ */

@media (max-width: 900px) {
  .av-toc {
    display: none;
  }

  .av-fn-panel.open {
    width: 280px;
    min-width: 280px;
  }
}

/* ===== dark-theme.css ===== */
body.dark {
  --bg-primary: #0f0a1e;
  --bg-secondary: #1e1b4b;
  --bg-tertiary: #312e81;
  --bg-card: #1e1b4b;
  --bg-sidebar: #050211;
  --bg-sidebar-hover: #0f0a1e;
  --bg-sidebar-active: #4c1d95;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverse: #0f172a;

  --border-color: #312e81;
  --border-light: #1e1b4b;

  --success-bg: rgba(16, 185, 129, 0.15);
  --error-bg: rgba(220, 38, 38, 0.15);
  --warning-bg: rgba(217, 119, 6, 0.15);
  --info-bg: rgba(124, 58, 237, 0.15);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

body.dark .form-input,
body.dark .form-select,
body.dark .form-textarea {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark .chat-input-area textarea {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark .essay-editor-panel textarea {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

body.dark .choice-item:hover {
  background: var(--bg-tertiary);
}

body.dark .choice-item.selected {
  background: rgba(76, 29, 149, 0.3);
}

body.dark .chat-message.user .msg-bubble {
  background: var(--navy);
}

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

body.dark .btn-outline:hover:not(:disabled) {
  background: var(--bg-tertiary);
}

/* Article dark mode */
body.dark .article-title {
  color: var(--gold);
}

body.dark .article-body h1,
body.dark .article-body h2,
body.dark .article-body h3,
body.dark .article-body h4 {
  color: var(--gold);
}

body.dark .article-body strong {
  color: var(--gold);
}

body.dark .article-body a {
  color: var(--gold);
  text-decoration-color: var(--gold-dark);
}

body.dark .article-body a:hover {
  color: var(--text-primary);
}

body.dark .article-body blockquote {
  background: var(--bg-tertiary);
  border-left-color: var(--gold-dark);
  color: var(--text-secondary);
}

body.dark .article-body sup a {
  color: var(--gold);
}

body.dark .article-body sup a:hover {
  color: var(--text-primary);
}

/* MC Tutor dark mode */
body.dark .mc-tutor-chat {
  background: var(--bg-card);
  border-color: var(--border-color);
}

body.dark .mc-tutor-input-area {
  background: var(--bg-card);
  border-color: var(--border-color);
}

body.dark .mc-tutor-input-area textarea {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

/* Profile page dark mode */
body.dark .profile-photo-placeholder {
  background: var(--gold-dark);
  color: var(--text-primary);
}

body.dark .profile-quote-input {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}