/* ══════════════════════════════════════════════════════════════
   quiz-bank-redesign.css — TNC Design System · Quiz Bank
   Navy workspace, teal accent. Layered on top of quiz-bank.css
   to swap colors and surface treatment without disturbing layout.
   ══════════════════════════════════════════════════════════════ */

:root {
  --navy:        #0d1b2a;
  --navy-2:      #162032;
  --navy-3:      #1e2d3e;
  --card:        #1a2940;
  --teal:        #0fbcad;
  --teal-dim:    #0a9086;
  --teal-soft:   rgba(15, 188, 173, 0.12);
  --teal-softer: rgba(15, 188, 173, 0.06);
  --amber:       #f4a535;
  --red:         #e05252;
  --green:       #3dbd7a;
  --purple:      #8b5cf6;
  --text:        #e8edf2;
  --text-dim:    #8a9bb0;
  --text-dimmer: #5f7085;
  --border:      rgba(255,255,255,0.07);
  --border-mid:  rgba(255,255,255,0.12);

  /* Remap quiz-bank tokens onto the TNC palette */
  --qb-primary:        var(--teal);
  --qb-primary-dark:   var(--teal-dim);
  --qb-secondary:      var(--purple);
  --qb-accent:         var(--amber);
  --qb-text:           var(--text);
  --qb-text-secondary: var(--text-dim);
  --qb-text-light:     var(--text-dimmer);
  --qb-bg:             var(--navy);
  --qb-bg-white:       var(--card);
  --qb-card-bg:        var(--card);
  --qb-border:         var(--border);
  --qb-border-light:   var(--border);
  --qb-shadow-sm:      0 1px 2px 0 rgba(0,0,0,0.25);
  --qb-shadow-md:      0 4px 12px rgba(0,0,0,0.3);
  --qb-shadow-lg:      0 12px 28px rgba(0,0,0,0.45);
  --qb-shadow-card:        0 2px 8px rgba(0,0,0,0.3);
  --qb-shadow-card-hover:  0 8px 24px rgba(0,0,0,0.5);
  --qb-correct:        var(--green);
  --qb-correct-bg:     rgba(61,189,122,0.10);
  --qb-correct-border: rgba(61,189,122,0.35);
  --qb-incorrect:      var(--red);
  --qb-incorrect-bg:   rgba(224,82,82,0.10);
  --qb-incorrect-border: rgba(224,82,82,0.35);
  --qb-partial:        var(--amber);
  --qb-partial-bg:     rgba(244,165,53,0.10);
  --qb-partial-border: rgba(244,165,53,0.35);
  --qb-type-single:    var(--teal);
  --qb-type-ordering:  var(--purple);
  --qb-type-matrix:    #2dd4bf;
}

/* Force the same navy palette in light mode (the site dropped the light theme) */
:root,
[data-theme="light"],
[data-theme="dark"] {
  --qb-text:           var(--text);
  --qb-text-secondary: var(--text-dim);
  --qb-text-light:     var(--text-dimmer);
  --qb-bg:             var(--navy);
  --qb-bg-white:       var(--card);
  --qb-card-bg:        var(--card);
  --qb-border:         var(--border);
  --qb-border-light:   var(--border);
  --qb-correct-bg:     rgba(61,189,122,0.10);
  --qb-correct-border: rgba(61,189,122,0.35);
  --qb-incorrect-bg:   rgba(224,82,82,0.10);
  --qb-incorrect-border: rgba(224,82,82,0.35);
  --qb-partial-bg:     rgba(244,165,53,0.10);
  --qb-partial-border: rgba(244,165,53,0.35);
}

/* ── Reset & base ── */
body {
  background: var(--navy);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--teal); }
a:hover { color: var(--teal-dim); }

/* ══════════════════════════════════════════════════════════════
   SKIP LINK / PAGE LOADER
   ══════════════════════════════════════════════════════════════ */
.skip-to-content {
  background: var(--teal);
  color: var(--navy);
}

.page-loader {
  background: var(--navy);
}
.loader-spinner {
  border: 2px solid var(--border-mid);
  border-top-color: var(--teal);
}

/* In-app initial loader (before quiz-bank.js renders the hub) */
.qb-initial-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  gap: 16px;
  flex-direction: column;
  color: var(--text-dim);
}
.qb-initial-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-mid);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: qb-spin 0.7s linear infinite;
}

/* ══════════════════════════════════════════════════════════════
   TOP NAVBAR
   ══════════════════════════════════════════════════════════════ */
.qb-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 27, 42, 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 0.5px solid var(--border);
  box-shadow: none;
}

.qb-navbar-inner {
  max-width: none;
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.qb-sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.qb-sidebar-toggle:hover {
  color: var(--text);
  background: var(--navy-3);
}

.qb-navbar-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.qb-navbar-logo {
  height: 32px;
  width: auto;
}

.qb-navbar-title {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.01em;
  padding-left: 12px;
  border-left: 0.5px solid var(--border-mid);
  margin-left: 4px;
}

.qb-navbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.qb-hub-topbar-signin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--teal);
  color: var(--navy);
  border: none;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
}
.qb-hub-topbar-signin:hover {
  background: var(--teal-dim);
  color: var(--navy);
  text-decoration: none;
}

.qb-theme-toggle {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.qb-theme-toggle:hover {
  color: var(--text);
  background: var(--navy-3);
}

.qb-hub-topbar-avatar {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  overflow: hidden;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
}
.qb-hub-topbar-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.qb-hub-topbar-avatar:hover { color: var(--text); }

.qb-hub-topbar-initial {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy-3);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 600;
  border: 0.5px solid var(--border-mid);
}

/* Hub menu (account dropdown) */
.qb-hub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  border-radius: 12px;
  padding: 8px 0;
  min-width: 260px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  z-index: 101;
}
.qb-hub-menu--open { display: block; }

.qb-hub-menu-header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.qb-hub-menu-avatar-large {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qb-hub-menu-avatar-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.qb-hub-menu-avatar-initial {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy-3);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
}
.qb-hub-menu-user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.qb-hub-menu-user-name {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.qb-hub-menu-user-email {
  font-size: 12px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qb-hub-menu-divider {
  height: 0.5px;
  background: var(--border);
  margin: 6px 0;
}

.qb-hub-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.qb-hub-menu-item:hover {
  background: var(--navy-3);
  color: var(--text);
}
.qb-hub-menu-item i {
  width: 16px;
  text-align: center;
  font-size: 13px;
  color: var(--text-dimmer);
}

/* Hide the in-app theme picker — the site is navy-only now */
.qb-hub-menu-theme,
.qb-hub-menu-theme + .qb-hub-menu-divider { display: none !important; }

/* ══════════════════════════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════════════════════════ */
.qb-sidebar {
  background: var(--navy-2);
  border-right: 0.5px solid var(--border);
  width: 240px;
  position: fixed;
  top: 60px;
  bottom: 0;
  left: 0;
  z-index: 80;
  padding: 20px 0;
  overflow-y: auto;
  transition: transform 0.2s ease;
}

.qb-sidebar-inner {
  padding: 0 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.qb-sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 12px;
  border-bottom: 0.5px solid var(--border);
  margin-bottom: 4px;
}
.qb-sidebar-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.qb-sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
  border-left: 2px solid transparent;
}
.qb-sidebar-item:hover {
  background: var(--teal-softer);
  color: var(--text);
  text-decoration: none;
}
.qb-sidebar-item.active {
  background: var(--teal-soft);
  color: var(--teal);
  font-weight: 600;
  border-left-color: var(--teal);
}
.qb-sidebar-item i {
  font-size: 15px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.qb-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 70;
}
.qb-sidebar-overlay--visible { display: block; }

/* ══════════════════════════════════════════════════════════════
   MAIN CONTAINER (offset for fixed navbar + sidebar)
   ══════════════════════════════════════════════════════════════ */
.qb-container {
  margin-left: 240px;
  padding: 88px 32px 80px;
  max-width: none;
  min-height: 100vh;
  background: var(--navy);
}

@media (max-width: 900px) {
  .qb-sidebar {
    transform: translateX(-100%);
  }
  .qb-sidebar--open {
    transform: translateX(0);
  }
  .qb-container {
    margin-left: 0;
    padding: 80px 16px 80px;
  }
}

/* ══════════════════════════════════════════════════════════════
   WELCOME LANDING (logged-out)
   ══════════════════════════════════════════════════════════════ */
.qb-welcome-landing {
  background: linear-gradient(140deg, var(--card) 0%, var(--navy-2) 100%);
  border: 0.5px solid var(--border-mid);
  border-radius: 16px;
  padding: 64px 40px;
  text-align: center;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}
.qb-welcome-landing::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 28%, rgba(15,188,173,0.32) 0%, transparent 55%),
    radial-gradient(circle at 82% 72%, rgba(139,92,246,0.22) 0%, transparent 55%),
    radial-gradient(circle at 50% 110%, rgba(45,212,191,0.12) 0%, transparent 65%);
  pointer-events: none;
}
/* Subtle dotted texture so the hero doesn't read as a flat panel */
.qb-welcome-landing::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.6;
}
.qb-welcome-content {
  position: relative;
  z-index: 1;
}
.qb-welcome-title {
  font-family: 'DM Serif Display', serif;
  font-size: 2.25rem;
  font-weight: 400;
  color: var(--text);
}
.qb-welcome-desc {
  font-size: 1rem;
  color: var(--text-dim);
}
.qb-welcome-feature {
  color: var(--text-dim);
}
.qb-welcome-feature i {
  color: var(--teal);
}
.qb-welcome-actions .qb-btn--primary {
  background: var(--teal);
  color: var(--navy);
  border: none;
  box-shadow: none;
  font-weight: 600;
}
.qb-welcome-actions .qb-btn--primary:hover {
  background: var(--teal-dim);
  color: var(--navy);
  transform: none;
}
.qb-welcome-actions .qb-btn--outline {
  background: transparent;
  color: var(--text);
  border: 0.5px solid var(--border-mid);
}
.qb-welcome-actions .qb-btn--outline:hover {
  background: var(--navy-3);
  border-color: var(--teal);
  color: var(--teal);
}
.qb-welcome-hint {
  color: var(--text-dimmer);
}

/* ══════════════════════════════════════════════════════════════
   SECTION HEADINGS
   ══════════════════════════════════════════════════════════════ */
.qb-section { margin-bottom: 32px; }
.qb-section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.qb-section-title i {
  color: var(--teal);
  font-size: 18px;
}

/* ══════════════════════════════════════════════════════════════
   MASTERY HERO
   ══════════════════════════════════════════════════════════════ */
.qb-mastery-hero {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  box-shadow: none;
}
.qb-hero-greeting {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--text);
}
.qb-hero-greeting-sub {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 4px;
}
.qb-hero-stats-row .qb-hero-stat-value {
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
}
.qb-hero-stats-row .qb-hero-stat-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ══════════════════════════════════════════════════════════════
   STAT CARDS (hub overview)
   ══════════════════════════════════════════════════════════════ */
.qb-stats-grid { gap: 14px; }
.qb-stat-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  box-shadow: none;
  transition: border-color 0.15s;
}
.qb-stat-card:hover {
  border-color: var(--border-mid);
  box-shadow: none;
  transform: none;
}
.qb-stat-icon { color: var(--teal); opacity: 0.85; }
.qb-stat-value {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: var(--text);
}
.qb-stat-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.qb-stat-card.mastery-red .qb-stat-value { color: var(--red); }
.qb-stat-card.mastery-yellow .qb-stat-value { color: var(--amber); }
.qb-stat-card.mastery-green .qb-stat-value { color: var(--green); }
.qb-stat-card.mastery-gold .qb-stat-value { color: var(--amber); }

.qb-weak-strong {
  background: var(--card);
  border: 0.5px solid var(--border);
}
.qb-weak-strong-title { color: var(--text); }
.qb-weak-col .qb-weak-strong-title i { color: var(--amber); }
.qb-strong-col .qb-weak-strong-title i { color: var(--green); }
.qb-weak-item {
  background: var(--navy-3);
  border: 0.5px solid var(--border);
}
.qb-weak-name { color: var(--text); }
.qb-weak-level { color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════════
   QUICK CARDS
   ══════════════════════════════════════════════════════════════ */
.qb-quick-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  box-shadow: none;
}
.qb-quick-card:hover:not([disabled]) {
  border-color: var(--teal);
  box-shadow: none;
  transform: translateY(-1px);
}
.qb-quick-card--disabled {
  background: var(--navy-2);
  opacity: 0.55;
}
.qb-quick-title { color: var(--text); }
.qb-quick-desc { color: var(--text-dim); }
.qb-quick-icon {
  background: var(--teal-soft);
  color: var(--teal);
}
.qb-quick-card--primary .qb-quick-icon {
  background: var(--teal-soft);
  color: var(--teal);
}
.qb-quick-card--warning .qb-quick-icon {
  background: rgba(244,165,53,0.12);
  color: var(--amber);
}
.qb-quick-card--neutral .qb-quick-icon {
  background: rgba(139,92,246,0.12);
  color: var(--purple);
}
.qb-quick-card--accent .qb-quick-icon {
  background: rgba(139,92,246,0.12);
  color: var(--purple);
}
.qb-quick-card--disabled .qb-quick-icon {
  background: var(--navy-3);
  color: var(--text-dimmer);
}

/* ══════════════════════════════════════════════════════════════
   CHAPTER SECTIONS (Adult Med-Surg / Specialty / Foundations / Coming Soon)
   ══════════════════════════════════════════════════════════════ */
.qb-chapter-section {
  margin-bottom: 28px;
}
.qb-chapter-section:last-child { margin-bottom: 0; }

.qb-chapter-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.qb-chapter-section-label i {
  color: var(--teal);
  font-size: 11px;
}
.qb-chapter-section--coming-soon .qb-chapter-section-label {
  color: var(--text-dimmer);
}
.qb-chapter-section--coming-soon .qb-chapter-section-label i {
  color: var(--text-dimmer);
}
/* Visually de-emphasize the coming-soon group */
.qb-chapter-section--coming-soon .qb-chapter {
  opacity: 0.72;
}
.qb-chapter-section--coming-soon .qb-chapter:hover {
  opacity: 1;
}

/* ══════════════════════════════════════════════════════════════
   CHAPTER / TOPIC LISTS
   ══════════════════════════════════════════════════════════════ */
.qb-chapter {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  box-shadow: none;
}
.qb-chapter:hover { box-shadow: none; }
.qb-chapter--open { border-color: var(--border-mid); }

.qb-chapter-header { background: transparent; }
.qb-chapter-header:hover { background: var(--teal-softer); }
.qb-chapter-emoji { /* keep */ }
.qb-chapter-icon {
  background: var(--navy-3);
  color: var(--teal);
  border: 0.5px solid var(--border-mid);
}
.qb-chapter-icon--placeholder {
  background: var(--navy-3);
  color: var(--text-dimmer);
}
.qb-chapter-label { color: var(--text); }
.qb-chapter-meta { color: var(--text-dim); }
.qb-chapter-mastery { color: var(--text-dim); }
.qb-chapter-mastery--not-started { color: var(--text-dimmer); }

.qb-chapter-bar {
  background: var(--border-mid);
}
.qb-chapter-bar-fill {
  background: linear-gradient(90deg, var(--teal), #2dd4bf);
}

.qb-chapter-badge {
  background: var(--teal-soft);
  color: var(--teal);
  border: 0.5px solid rgba(15,188,173,0.25);
}
.qb-badge-coming-soon {
  background: var(--navy-3);
  color: var(--text-dimmer);
  border: 0.5px solid var(--border-mid);
}
.qb-chapter-arrow { color: var(--text-dim); }

.qb-chapter-topics {
  background: var(--navy-2);
  border-top: 0.5px solid var(--border);
}

.qb-topic {
  background: var(--navy-3);
  border: 0.5px solid var(--border);
}
.qb-topic:hover {
  background: var(--navy-3);
  border-color: var(--teal);
}
.qb-topic--locked {
  background: var(--navy-2);
  opacity: 0.65;
}
.qb-topic-name { color: var(--text); }
.qb-topic-bar { background: var(--border-mid); }
.qb-topic-bar-fill { background: var(--teal); }
.qb-topic-level { color: var(--text-dim); }
.qb-topic-coming-soon {
  background: var(--navy-2);
  color: var(--text-dimmer);
  border: 0.5px solid var(--border-mid);
}
.qb-topic-start {
  background: var(--teal);
  color: var(--navy);
  border: none;
  font-weight: 600;
}
.qb-topic-start:hover {
  background: var(--teal-dim);
  color: var(--navy);
}
.qb-topic-guide-link {
  color: var(--teal);
  background: transparent;
  border: 0.5px solid var(--border-mid);
}
.qb-topic-guide-link:hover {
  background: var(--teal-soft);
  border-color: var(--teal);
  color: var(--teal);
}

/* ══════════════════════════════════════════════════════════════
   BADGES (mastery shields) — keep celebratory color treatments,
   only adjust the "not started" outline for the dark surface
   ══════════════════════════════════════════════════════════════ */
.qb-badge--0 {
  background: transparent;
  border: 1.5px dashed var(--border-mid);
  color: var(--text-dimmer);
}

/* Accuracy pills */
.qb-accuracy-pill--good {
  background: rgba(61,189,122,0.14);
  color: var(--green);
  border: 0.5px solid rgba(61,189,122,0.35);
}
.qb-accuracy-pill--ok {
  background: rgba(244,165,53,0.14);
  color: var(--amber);
  border: 0.5px solid rgba(244,165,53,0.35);
}
.qb-accuracy-pill--low {
  background: rgba(224,82,82,0.14);
  color: var(--red);
  border: 0.5px solid rgba(224,82,82,0.35);
}

/* ══════════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════════ */
.qb-btn {
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  border-radius: 8px;
  border: 0.5px solid var(--border-mid);
  background: transparent;
  color: var(--text-dim);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  box-shadow: none;
}
.qb-btn:hover {
  background: var(--navy-3);
  color: var(--text);
}
.qb-btn--primary {
  background: var(--teal);
  color: var(--navy);
  border-color: var(--teal);
  font-weight: 600;
  box-shadow: none;
}
.qb-btn--primary:hover {
  background: var(--teal-dim);
  border-color: var(--teal-dim);
  color: var(--navy);
  box-shadow: none;
}
.qb-btn--primary:disabled {
  background: var(--navy-3);
  border-color: var(--border-mid);
  color: var(--text-dimmer);
  box-shadow: none;
  cursor: not-allowed;
}
.qb-btn--primary:not(:disabled) { box-shadow: none; }
.qb-btn--secondary {
  background: transparent;
  color: var(--text);
  border: 0.5px solid var(--border-mid);
  box-shadow: none;
}
.qb-btn--secondary:hover {
  background: var(--navy-3);
  border-color: var(--teal);
  color: var(--teal);
}
.qb-btn--ghost {
  background: transparent;
  color: var(--text-dim);
  border: none;
}
.qb-btn--ghost:hover {
  background: var(--navy-3);
  color: var(--text);
}
.qb-btn--success {
  background: var(--green);
  color: var(--navy);
  border: none;
  box-shadow: none;
}
.qb-btn--success:hover {
  background: #34a86c;
  color: var(--navy);
  box-shadow: none;
}
.qb-btn--outline {
  background: transparent;
  color: var(--teal);
  border: 0.5px solid var(--teal);
}
.qb-btn--outline:hover {
  background: var(--teal-soft);
  color: var(--teal);
}
.qb-btn--lg {
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
}

/* ══════════════════════════════════════════════════════════════
   QUIZ ENGINE — progress bar, question card, options
   ══════════════════════════════════════════════════════════════ */
.qb-quiz-view { background: transparent; }
.qb-progress { background: transparent; }
.qb-progress-text {
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 500;
}
.qb-progress-score {
  color: var(--text);
  font-size: 14px;
}
.qb-progress-mode {
  background: transparent;
  border: 0.5px solid var(--border-mid);
  color: var(--text-dim);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
/* Mode is secondary info — keep the badge low-contrast so the question
   type pill ("Single Best Answer") owns the teal/colored chrome. */
.qb-progress-mode--practice { color: var(--text-dim); border-color: var(--border-mid); }
.qb-progress-mode--exam { color: var(--amber); border-color: rgba(244,165,53,0.4); }
.qb-progress-track { background: var(--border-mid); height: 6px; }
.qb-progress-fill {
  background: linear-gradient(90deg, var(--teal), #2dd4bf);
}

.qb-question-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--qb-shadow-card);
  padding: 32px 28px;
}

.qb-q-badge {
  background: var(--teal);
  color: var(--navy);
  font-weight: 600;
  width: 36px;
  height: 36px;
  font-size: 16px;
}
.qb-q-type {
  background: var(--navy-3);
  color: var(--text-dim);
  border: 0.5px solid var(--border-mid);
  font-size: 13px;
  padding: 5px 12px;
}
.qb-q-type--single    { color: var(--teal); border-color: rgba(15,188,173,0.3); }
.qb-q-type--ordering  { color: var(--purple); border-color: rgba(139,92,246,0.3); }
.qb-q-type--matrix    { color: #2dd4bf; border-color: rgba(45,212,191,0.3); }
.qb-q-difficulty {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text-dim);
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 6px;
}
.qb-q-stem {
  color: var(--text);
  font-size: 18px;
  line-height: 1.65;
  margin-bottom: 24px;
}
.qb-q-instruction {
  background: var(--teal-softer);
  border-left: 3px solid var(--teal);
  color: var(--text-dim);
  font-size: 15px;
  padding: 10px 14px;
}
.qb-q-instruction--ordering { border-left-color: var(--purple); }
.qb-q-instruction--matrix { border-left-color: #2dd4bf; }

/* Single-choice options */
.qb-option {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  box-shadow: none;
}
.qb-option:hover {
  background: var(--teal-softer);
  border-color: var(--teal);
  box-shadow: none;
}
.qb-option:focus-within {
  background: var(--teal-softer);
  border-color: var(--teal);
  box-shadow: 0 0 0 2px rgba(15,188,173,0.25);
}
.qb-option--selected {
  background: var(--teal-soft);
  border-color: var(--teal);
  color: var(--text);
}
.qb-option--correct {
  background: rgba(61,189,122,0.12);
  border-color: var(--green);
  color: var(--text);
}
.qb-option--incorrect {
  background: rgba(224,82,82,0.12);
  border-color: var(--red);
  color: var(--text);
}
.qb-option--disabled { opacity: 0.65; }
.qb-option--eliminated {
  opacity: 0.4;
  text-decoration: line-through;
}

.qb-option-marker {
  border: 1.5px solid var(--border-mid);
  background: var(--navy-2);
}
.qb-option--selected .qb-option-marker {
  border-color: var(--teal);
  background: var(--teal);
}
.qb-option--correct .qb-option-marker {
  border-color: var(--green);
  background: var(--green);
}
.qb-option--incorrect .qb-option-marker {
  border-color: var(--red);
  background: var(--red);
}
/* Don't touch ::after — original draws the checkmark with `border`
   (white CSS shape) and the X with a Font Awesome character. Forcing
   a `background` here paints a square behind the icon. */
.qb-option-letter {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 16px;
  min-width: 28px;
  width: 28px;
  height: 28px;
}
.qb-option:hover .qb-option-letter { color: var(--teal); }
.qb-option--selected .qb-option-letter { color: var(--teal); }
/* Keep the option text + letter readable (white) on the tinted correct/
   incorrect backgrounds — the marker already carries the color signal.
   Use !important to defeat the legacy rule that paints both red/green. */
.qb-option--correct .qb-option-letter,
.qb-option--correct .qb-option-text { color: var(--text) !important; }
.qb-option--incorrect .qb-option-letter,
.qb-option--incorrect .qb-option-text { color: var(--text) !important; }
.qb-option-text { color: var(--text); font-size: 16px; line-height: 1.55; }
.qb-option { padding: 16px 18px; }

/* Ordering items */
.qb-ordering-area { background: transparent; }
.qb-ordering-items { background: transparent; }
.qb-ordering-item {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  box-shadow: none;
}
.qb-ordering-item:hover {
  border-color: var(--purple);
  background: rgba(139,92,246,0.08);
}
.qb-ordering-item--numbered {
  border-color: var(--purple);
  background: rgba(139,92,246,0.10);
}
.qb-ordering-item--correct {
  border-color: var(--green);
  background: rgba(61,189,122,0.12);
}
.qb-ordering-item--incorrect {
  border-color: var(--red);
  background: rgba(224,82,82,0.12);
}
.qb-ordering-item--disabled { opacity: 0.7; cursor: default; }
.qb-ordering-badge {
  background: var(--purple);
  color: #fff;
}
.qb-ordering-item--correct .qb-ordering-badge { background: var(--green); color: var(--navy); }
.qb-ordering-item--incorrect .qb-ordering-badge { background: var(--red); color: var(--navy); }
.qb-ordering-clear {
  background: transparent;
  color: var(--text-dim);
  border: 0.5px solid var(--border-mid);
}
.qb-ordering-clear:hover { background: var(--navy-3); color: var(--text); }

/* Matrix questions */
.qb-matrix-wrapper {
  background: var(--navy-2);
  border: 0.5px solid var(--border);
  border-radius: 10px;
}
.qb-matrix-table { background: transparent; color: var(--text); }
.qb-matrix-finding-header,
.qb-matrix-col-header {
  background: var(--navy-3);
  color: var(--text-dim);
  border-bottom: 0.5px solid var(--border-mid);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  font-weight: 500;
}
.qb-matrix-finding { color: var(--text); }
.qb-matrix-row { border-bottom: 0.5px solid var(--border); }
.qb-matrix-row:last-child { border-bottom: none; }
.qb-matrix-row--correct { background: rgba(61,189,122,0.06); }
.qb-matrix-row--incorrect { background: rgba(224,82,82,0.06); }
.qb-matrix-cell {
  border-left: 0.5px solid var(--border);
  background: transparent;
}
.qb-matrix-cell:hover { background: var(--teal-softer); }
.qb-matrix-cell--selected { background: var(--teal-soft); }
.qb-matrix-cell--correct-answer { background: rgba(61,189,122,0.18); }
.qb-matrix-cell--disabled:hover { background: transparent; }
.qb-matrix-radio-marker {
  border: 1.5px solid var(--border-mid);
  background: var(--navy-3);
}
.qb-matrix-cell--selected .qb-matrix-radio-marker {
  border-color: var(--teal);
  background: var(--teal);
}
.qb-matrix-cell--correct-answer .qb-matrix-radio-marker {
  border-color: var(--green);
  background: var(--green);
}

/* Toolbar / flag / eliminate */
.qb-q-toolbar { background: transparent; }
.qb-tool-btn,
.qb-flag-btn {
  background: transparent;
  border: 0.5px solid var(--border-mid);
  color: var(--text-dim);
  font-size: 14px;
  padding: 9px 16px;
  border-radius: 8px;
  gap: 8px;
}
.qb-tool-btn:hover,
.qb-flag-btn:hover {
  background: var(--navy-3);
  color: var(--text);
  border-color: var(--border-mid);
}
.qb-tool-btn--active {
  background: var(--teal-soft);
  color: var(--teal);
  border-color: var(--teal);
}
.qb-flag-btn--active {
  background: rgba(244,165,53,0.14);
  color: var(--amber);
  border-color: rgba(244,165,53,0.4);
}

/* Keyboard shortcut bar */
.qb-shortcut-bar {
  color: var(--text-dim);
  font-size: 13px;
  border-top: 0.5px solid var(--border);
  padding: 14px 16px;
}
.qb-shortcut-bar kbd {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  border-radius: 6px;
}

/* Session timer */
.qb-session-timer {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text-dim);
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  padding: 5px 12px;
}
.qb-session-timer--warning {
  background: rgba(244,165,53,0.12);
  color: var(--amber);
  border-color: rgba(244,165,53,0.4);
}
.qb-session-timer--danger {
  background: rgba(224,82,82,0.14);
  color: var(--red);
  border-color: rgba(224,82,82,0.4);
}

/* ══════════════════════════════════════════════════════════════
   FEEDBACK
   ══════════════════════════════════════════════════════════════ */
.qb-feedback {
  background: var(--card);
  border: 0.5px solid var(--border);
}
.qb-feedback--correct {
  background: var(--qb-correct-bg);
  border-color: var(--qb-correct-border);
}
.qb-feedback--incorrect {
  background: var(--qb-incorrect-bg);
  border-color: var(--qb-incorrect-border);
}
.qb-feedback-header { color: var(--text); }
.qb-feedback--correct .qb-feedback-header { color: var(--green); }
.qb-feedback--incorrect .qb-feedback-header { color: var(--red); }
.qb-feedback-label { color: var(--text-dim); }
.qb-feedback-text { color: var(--text); }
.qb-feedback-tip {
  background: rgba(15,188,173,0.08);
  border: 0.5px solid rgba(15,188,173,0.25);
}
.qb-feedback-tip-label { color: var(--teal); }
.qb-feedback-tip-text { color: var(--text); }
.qb-feedback-review {
  background: var(--teal-soft);
  color: var(--teal);
  border: 0.5px solid rgba(15,188,173,0.3);
}
.qb-feedback-review:hover {
  background: rgba(15,188,173,0.18);
  color: var(--teal);
}

/* Exam mode indicator */
.qb-exam-indicator--correct {
  background: var(--qb-correct-bg);
  color: var(--green);
  border: 0.5px solid var(--qb-correct-border);
}
.qb-exam-indicator--incorrect {
  background: var(--qb-incorrect-bg);
  color: var(--red);
  border: 0.5px solid var(--qb-incorrect-border);
}

/* Sticky next bar */
.qb-sticky-next {
  background: rgba(13, 27, 42, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 0.5px solid var(--border);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.5);
}

/* ══════════════════════════════════════════════════════════════
   RESULTS
   ══════════════════════════════════════════════════════════════ */
.qb-results-score-col {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 14px;
}
.qb-score-ring-bg { stroke: var(--border-mid); }
.qb-score-value { color: var(--text); }
.qb-score-label { color: var(--text-dim); }
.qb-score-pct { color: var(--text); }
.qb-perf-msg { color: var(--text-dim); }

.qb-mastery-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  box-shadow: none;
}
.qb-mastery-card--leveled {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), 0 8px 24px rgba(61,189,122,0.2);
}
.qb-mastery-card--practice {
  border-color: var(--border);
  background: var(--card);
}
.qb-mastery-card--practice .qb-mastery-topic { color: var(--text-dim); }
.qb-mastery-practice-msg { color: var(--text-dim); }
.qb-mastery-levelup {
  background: linear-gradient(135deg, var(--green), #2ea35f);
  color: var(--navy);
}
.qb-mastery-topic { color: var(--text-dim); }
.qb-mastery-level-name { color: var(--text); }
.qb-mastery-progress-track { background: var(--border-mid); }
.qb-mastery-progress-label { color: var(--text-dim); }

.qb-pts-floater {
  background: var(--green);
  color: var(--navy);
}

/* ══════════════════════════════════════════════════════════════
   BUILDER MODAL
   ══════════════════════════════════════════════════════════════ */
.qb-builder-overlay {
  background: rgba(13, 27, 42, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.qb-builder-modal {
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  color: var(--text);
  max-width: 760px;
}
.qb-builder-modal-header {
  border-bottom: 0.5px solid var(--border);
  padding: 20px 28px;
}
.qb-builder-modal-header .qb-section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 24px;
  font-weight: 400;
}
.qb-builder-modal-header .qb-section-title i {
  font-size: 20px;
}
.qb-builder-close {
  background: transparent;
  color: var(--text-dim);
  border: none;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.qb-builder-close:hover {
  background: var(--navy-3);
  color: var(--text);
}

/* More breathing room inside the modal */
.qb-builder-form {
  padding: 28px 28px 32px;
}
.qb-builder-zone {
  background: var(--navy-3);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
  margin-bottom: 18px;
}
.qb-builder-zone:last-of-type {
  margin-bottom: 0;
  padding: 20px 22px;
  border-bottom: 0.5px solid var(--border);
}
.qb-builder-zone-label {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.qb-builder-zone-label i { color: var(--teal); font-size: 14px; }
.qb-builder-group { margin-bottom: 18px; }
.qb-builder-group:last-child { margin-bottom: 0; }
.qb-builder-label {
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.qb-builder-hint { color: var(--text-dim); font-weight: 400; font-size: 14px; }
.qb-builder-desc { color: var(--text-dim); font-size: 14px; }
.qb-builder-placeholder { color: var(--text-dimmer); padding: 12px 0; font-size: 14px; }

.qb-builder-row { gap: 22px; margin-bottom: 18px; }
.qb-builder-inline-row { gap: 28px; }

/* Roomier chips overall */
.qb-builder-chips { gap: 10px; }
.qb-chip {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.2;
}
.qb-chip:hover:not([disabled]) {
  background: var(--teal-softer);
  border-color: var(--teal);
  color: var(--text);
}
.qb-chip--active {
  background: var(--teal);
  color: var(--navy);
  border-color: var(--teal);
  font-weight: 600;
}
.qb-chip--active:hover:not([disabled]) {
  background: var(--teal-dim);
  color: var(--navy);
  border-color: var(--teal-dim);
}
.qb-chip[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  border-style: dashed;
}

/* Bigger chapter grid cards */
.qb-builder-chapter-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.qb-builder-chapter-grid .qb-chip {
  padding: 14px 18px;
  font-size: 15px;
  border-radius: 10px;
  background: var(--card);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  min-height: 50px;
}
.qb-builder-chapter-grid .qb-chip:hover:not([disabled]) {
  background: var(--teal-softer);
  border-color: var(--teal);
}
.qb-builder-chapter-grid .qb-chip--active {
  background: var(--teal);
  color: var(--navy);
  border-color: var(--teal);
}

.qb-builder-toggles { gap: 12px; }
.qb-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 15px;
  cursor: pointer;
}
.qb-toggle:hover { border-color: var(--teal); background: var(--teal-softer); }
.qb-toggle input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
  flex-shrink: 0;
}

/* Select All / Deselect All pill buttons */
.qb-builder-select-actions {
  gap: 10px;
  margin-bottom: 14px;
}
.qb-builder-select-btn {
  background: var(--teal-soft);
  border: 0.5px solid rgba(15,188,173,0.4);
  color: var(--teal);
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.qb-builder-select-btn:hover {
  background: var(--teal);
  color: var(--navy);
  border-color: var(--teal);
}

.qb-builder-footer {
  border-top: 0.5px solid var(--border);
  background: var(--navy-2);
  padding: 16px 28px;
}
.qb-builder-count {
  color: var(--text-dim);
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.qb-qs-chapter-btn {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
}
.qb-qs-chapter-btn:hover {
  background: var(--teal-softer);
  border-color: var(--teal);
}
.qb-qs-chapter--open .qb-qs-chapter-btn {
  background: var(--teal-softer);
  border-color: var(--teal);
  color: var(--teal);
}
.qb-qs-chevron { color: var(--text-dim); }
.qb-qs-topics { background: var(--navy-2); }
.qb-qs-topic-chip {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text-dim);
}
.qb-qs-topic-chip:hover {
  background: var(--teal-softer);
  border-color: var(--teal);
  color: var(--text);
}
.qb-qs-topic-chip--active,
.qb-qs-topic-chip.qb-chip--active {
  background: var(--teal);
  color: var(--navy);
  border-color: var(--teal);
}

.qb-builder-zone {
  background: var(--navy-3);
  border: 0.5px solid var(--border);
  border-radius: 10px;
}
.qb-builder-zone-label { color: var(--text); }
.qb-builder-zone-label i { color: var(--teal); }
.qb-builder-chapter-grid .qb-chip { /* keep chip style */ }
.qb-builder-select-btn {
  background: var(--teal);
  color: var(--navy);
  border: none;
  font-weight: 600;
}
.qb-builder-select-btn:hover {
  background: var(--teal-dim);
  color: var(--navy);
}
.qb-builder-topic-chapter-label {
  color: var(--text-dim);
  text-transform: uppercase;
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-top: 12px;
}

.qb-builder-info { color: var(--text-dim); }
.qb-builder-info:hover::after,
.qb-builder-info:focus::after {
  background: var(--navy-2);
  color: var(--text);
  border: 0.5px solid var(--border-mid);
}

/* ══════════════════════════════════════════════════════════════
   REPORT MODAL
   ══════════════════════════════════════════════════════════════ */
.qb-report-overlay {
  background: rgba(13, 27, 42, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.qb-report-modal {
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  color: var(--text);
  max-width: 540px;
  width: 100%;
}
.qb-report-header {
  border-bottom: 0.5px solid var(--border);
  padding: 20px 26px;
}
.qb-report-header h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--text);
}
.qb-report-header h3 i {
  color: var(--red);
  font-size: 18px;
  margin-right: 10px;
}
.qb-report-close {
  background: transparent;
  color: var(--text-dim);
  border: none;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 18px;
}
.qb-report-close:hover {
  background: var(--navy-3);
  color: var(--text);
}

.qb-report-body { padding: 22px 26px 26px; }

.qb-report-question-preview {
  background: var(--navy-3);
  border-left: 3px solid var(--teal);
  padding: 16px 18px;
  border-radius: 10px;
  margin-bottom: 22px;
}
.qb-report-meta-tag {
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.02em;
  border-radius: 999px;
  font-weight: 600;
}
.qb-report-meta-tag--id {
  background: var(--teal-soft);
  color: var(--teal);
}
.qb-report-stem-text {
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  margin-top: 10px;
}

.qb-report-prompt {
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 14px;
}

.qb-report-reasons { gap: 10px; margin-bottom: 20px; }

.qb-report-reason {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  font-size: 15px;
  padding: 14px 18px;
  gap: 14px;
}
.qb-report-reason i {
  width: 20px;
  font-size: 16px;
  color: var(--text-dim);
}
.qb-report-reason:hover {
  border-color: var(--teal);
  background: var(--teal-softer);
}
.qb-report-reason--active {
  border-color: var(--teal);
  background: var(--teal-soft);
  color: var(--teal);
  font-weight: 500;
}
.qb-report-reason--active i { color: var(--teal); }

.qb-report-details {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  padding: 14px 16px;
  min-height: 80px;
}
.qb-report-details::placeholder { color: var(--text-dimmer); font-size: 15px; }
.qb-report-details:focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 2px rgba(15,188,173,0.2);
}

.qb-report-submit {
  font-size: 16px;
  font-weight: 600;
  padding: 13px 24px;
}
.qb-report-status { font-size: 14px; margin-top: 14px; }

/* ══════════════════════════════════════════════════════════════
   SIGN-IN GATE
   ══════════════════════════════════════════════════════════════ */
.qb-gate-overlay {
  background: rgba(13, 27, 42, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.qb-gate-modal {
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  color: var(--text);
}
.qb-gate-icon {
  background: var(--teal-soft);
  color: var(--teal);
}
.qb-gate-modal h3 { color: var(--text); }
.qb-gate-modal p { color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════════
   EMPTY / COMING SOON STATES
   ══════════════════════════════════════════════════════════════ */
.qb-empty-state {
  background: var(--card);
  border: 0.5px solid var(--border);
}
.qb-empty-icon {
  background: var(--navy-3);
  color: var(--teal);
}
.qb-empty-title { color: var(--text); }
.qb-empty-desc { color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════════
   SCRATCHPAD
   ══════════════════════════════════════════════════════════════ */
.qb-scratchpad {
  background: var(--card);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.qb-scratchpad textarea,
.qb-scratchpad input {
  background: var(--navy-3);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
}

/* ══════════════════════════════════════════════════════════════
   CONFIDENCE WIDGET
   ══════════════════════════════════════════════════════════════ */
.qb-confidence-prompt {
  background: var(--navy-3);
  border: 0.5px solid var(--border);
}
.qb-confidence-prompt p,
.qb-confidence-prompt span { color: var(--text-dim); }
.qb-confidence-btn {
  background: var(--card);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
}
.qb-confidence-btn:hover { border-color: var(--teal); }
.qb-confidence-btn--low.active,
.qb-confidence-btn--low:hover { border-color: var(--red); color: var(--red); }
.qb-confidence-btn--medium.active,
.qb-confidence-btn--medium:hover { border-color: var(--amber); color: var(--amber); }
.qb-confidence-btn--high.active,
.qb-confidence-btn--high:hover { border-color: var(--green); color: var(--green); }

/* ══════════════════════════════════════════════════════════════
   PACING SUMMARY
   ══════════════════════════════════════════════════════════════ */
.qb-pacing-summary,
.qb-confidence-summary {
  background: var(--card);
  border: 0.5px solid var(--border);
  color: var(--text);
}
.qb-pacing-summary-tip {
  background: rgba(224,82,82,0.10);
  color: var(--red);
  border-left: 3px solid var(--red);
}
.qb-pacing-summary-tip--good {
  background: rgba(61,189,122,0.10);
  color: var(--green);
  border-left-color: var(--green);
}

/* ══════════════════════════════════════════════════════════════
   FLAG REVIEW PROMPT
   ══════════════════════════════════════════════════════════════ */
.qb-flag-review-prompt {
  background: rgba(244,165,53,0.08);
  border: 0.5px solid rgba(244,165,53,0.3);
  border-left: 3px solid var(--amber);
  color: var(--text);
}
.qb-flag-review-prompt strong { color: var(--amber); }
.qb-flag-review-detail { color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════════
   RESULTS BREAKDOWN / INSIGHTS
   ══════════════════════════════════════════════════════════════ */
.qb-results-breakdown,
.qb-results-insights {
  color: var(--text);
}
.qb-result-item {
  background: var(--card);
  border: 0.5px solid var(--border);
  color: var(--text);
}
.qb-result-item--expanded {
  border-color: var(--teal);
  background: var(--card);
}
.qb-result-flag { color: var(--amber); }
.qb-result-rationale {
  background: var(--navy-3);
  color: var(--text);
  border-top: 0.5px solid var(--border);
}

.qb-history-section {
  background: var(--card);
  border: 0.5px solid var(--border);
  color: var(--text);
}
.qb-history-section h3,
.qb-history-section h4 { color: var(--text); }
.qb-score-chart text { fill: var(--text-dim); }
.qb-score-chart line,
.qb-score-chart .qb-chart-grid line { stroke: var(--border-mid); }

/* ══════════════════════════════════════════════════════════════
   LEVEL UP OVERLAY
   ══════════════════════════════════════════════════════════════ */
.qb-levelup-overlay {
  background: rgba(13, 27, 42, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

/* ══════════════════════════════════════════════════════════════
   TOPIC DRILL MODAL
   ══════════════════════════════════════════════════════════════ */
.qb-topic-drill-modal {
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  color: var(--text);
}
.qb-topic-drill-modal-desc { color: var(--text-dim); }
.qb-topic-drill-list::-webkit-scrollbar-thumb {
  background: var(--border-mid);
  border-radius: 4px;
}

/* ══════════════════════════════════════════════════════════════
   ORDERING COMPARE TABLE (post-answer)
   ══════════════════════════════════════════════════════════════ */
.qb-ordering-compare-table,
.qb-ordering-compare-row {
  background: var(--card);
  color: var(--text);
  border-color: var(--border);
}
.qb-ordering-compare-header {
  background: var(--navy-3);
  color: var(--text-dim);
  border-bottom: 0.5px solid var(--border-mid);
}

/* ══════════════════════════════════════════════════════════════
   CONFIRM MODAL (themed replacement for native window.confirm)
   ══════════════════════════════════════════════════════════════ */
.qb-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(13, 27, 42, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.qb-confirm-overlay--visible { opacity: 1; }

.qb-confirm-modal {
  background: var(--navy-2);
  border: 0.5px solid var(--border-mid);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  color: var(--text);
  max-width: 420px;
  width: 100%;
  padding: 28px 28px 22px;
  text-align: center;
  transform: translateY(8px) scale(0.98);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.qb-confirm-overlay--visible .qb-confirm-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.qb-confirm-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--teal-soft);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.qb-confirm-icon--danger {
  background: rgba(244, 165, 53, 0.14);
  color: var(--amber);
}

.qb-confirm-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--text);
  margin: 0 0 8px;
  line-height: 1.3;
}

.qb-confirm-message {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
  margin: 0 0 22px;
}

.qb-confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.qb-confirm-actions .qb-btn {
  flex: 1;
  max-width: 160px;
  padding: 10px 18px;
  font-size: 14px;
}

/* Danger variant for destructive confirm buttons */
.qb-btn--danger {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  font-weight: 600;
}
.qb-btn--danger:hover {
  background: #c44545;
  border-color: #c44545;
  color: #fff;
}

@media (max-width: 480px) {
  .qb-confirm-modal {
    padding: 22px 20px 18px;
  }
  .qb-confirm-actions {
    flex-direction: column-reverse;
  }
  .qb-confirm-actions .qb-btn {
    max-width: none;
    width: 100%;
  }
}

/* ══════════════════════════════════════════════════════════════
   ADJUST OLD HARDCODED LIGHT-BG RULES
   ══════════════════════════════════════════════════════════════ */
.qb-results-badge-row { background: transparent; }

/* Mobile-fix: ensure modals don't use white card bg */
@media (max-width: 600px) {
  .qb-builder-modal,
  .qb-report-modal,
  .qb-gate-modal,
  .qb-topic-drill-modal {
    background: var(--navy-2);
    color: var(--text);
  }
}

/* ══════════════════════════════════════════════════════════════
   TODAY'S RECOMMENDED PRACTICE (Daily Plan suggestions)
   Pulled from /api/semester/daily-plan; shows only when the user
   has a configured semester AND at least one plan task maps to a
   quizzable topic. Async-injected after hub render.
   ══════════════════════════════════════════════════════════════ */
.qb-daily-plan {
  /* Inherit standard section spacing from .qb-section */
}
.qb-daily-plan-desc {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: -8px 0 14px;
}
.qb-daily-plan-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.qb-daily-plan-card {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  background: var(--navy-3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  border-radius: 12px;
  padding: 14px 16px;
  color: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  font-family: inherit;
}
.qb-daily-plan-card:hover {
  background: var(--navy-2);
  border-color: var(--border-mid);
  border-left-color: var(--teal);
  transform: translateY(-1px);
}
.qb-daily-plan-card-main {
  flex: 1 1 auto;
  min-width: 0;
}
.qb-daily-plan-card-chapter {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--teal);
  margin-bottom: 2px;
}
.qb-daily-plan-card-topic {
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qb-daily-plan-card-context {
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qb-daily-plan-card-cta {
  flex: 0 0 auto;
  color: var(--text-dim);
  font-size: 0.9rem;
  transition: color 0.15s ease, transform 0.15s ease;
}
.qb-daily-plan-card:hover .qb-daily-plan-card-cta {
  color: var(--teal);
  transform: translateX(2px);
}

/* ══════════════════════════════════════════════════════════════
   FEATURED CHAPTER CARD (Tier B)
   Highlights the user's weakest practiced chapter at the top of
   the chapter list. Same chapter still appears below in its group.
   ══════════════════════════════════════════════════════════════ */
.qb-featured-chapter {
  background: linear-gradient(135deg, var(--teal-soft) 0%, var(--teal-softer) 100%);
  border: 1px solid var(--border-mid);
  border-left: 4px solid var(--teal);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 24px;
  box-shadow: var(--qb-shadow-card);
}
.qb-featured-chapter-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 14px;
}
.qb-featured-chapter-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
}
.qb-featured-chapter-info {
  min-width: 0;
  flex: 1 1 280px;
}
.qb-featured-chapter-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.45rem;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.2;
}
.qb-featured-chapter-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-size: 0.92rem;
}
.qb-featured-chapter-level { font-weight: 600; }
.qb-featured-chapter-desc { color: var(--text-dim); }
.qb-featured-chapter-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
@media (max-width: 640px) {
  .qb-featured-chapter { padding: 18px; }
  .qb-featured-chapter-name { font-size: 1.25rem; }
  .qb-featured-chapter-actions { width: 100%; }
  .qb-featured-chapter-actions .qb-btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}