/* ============================================
   Oson Test Clean Design System
   Teal-slate, minimal UI matching EduTech design
   Include LAST to override vendor/legacy styles
   ============================================ */

:root {
  --ot-primary: #3d6b7a;
  --ot-primary-light: #eef5f7;
  --ot-primary-hover: #2f5563;
  --ot-primary-rgb: 61, 107, 122;
  --ot-text: #1e293b;
  --ot-text-secondary: #64748b;
  --ot-border: #dfe6ec;
  --ot-bg: #ffffff;
  --ot-bg-muted: #f4f7f9;
  --ot-bg-page: #eef2f5;
  --ot-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --ot-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  --ot-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);
  --ot-radius: 10px;
  --ot-radius-lg: 14px;
  --ot-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ot-success: #16a34a;
  --ot-danger: #dc2626;
}

/* Override Bootstrap primary */
.bg-primary { background-color: var(--ot-primary) !important; }
.text-primary { color: var(--ot-primary) !important; }
.text-bg-primary { background-color: var(--ot-primary) !important; color: #fff !important; }
.border-primary { border-color: var(--ot-primary) !important; }

/* Override NiceAdmin default blue (#4154f1) */
a { color: var(--ot-primary); }
a:hover { color: var(--ot-primary-hover); }
.nav-tabs-bordered .nav-link:focus,
.nav-tabs-bordered .nav-link.active { color: var(--ot-primary) !important; border-bottom-color: var(--ot-primary) !important; }
.sidebar-nav .nav-link.collapsed:hover,
.sidebar-nav .nav-link.collapsed:hover i { color: var(--ot-primary) !important; }
.sidebar-nav .nav-link:not(.collapsed),
.sidebar-nav .nav-link:not(.collapsed) i { color: var(--ot-primary) !important; }
.sidebar-nav .nav-content a.active { color: var(--ot-primary) !important; }
.sidebar-nav .nav-content a.active i { background-color: var(--ot-primary) !important; }
.dashboard .sales-card .card-icon { color: var(--ot-primary) !important; }
.dashboard .filter .icon:focus { color: var(--ot-primary) !important; }

/* ---- Typography ---- */
body {
  font-family: var(--ot-font);
  color: var(--ot-text);
  background: var(--ot-bg-page);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--ot-font);
  color: var(--ot-text);
  font-weight: 600;
}

/* ---- Cards ---- */
.card {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius-lg) !important;
  box-shadow: var(--ot-shadow-sm) !important;
  transition: box-shadow 0.2s ease !important;
  overflow: hidden;
  background: var(--ot-bg);
}

.card:hover {
  box-shadow: var(--ot-shadow) !important;
  transform: none !important;
  border-color: var(--ot-border) !important;
}

.card:hover .card-img-top {
  transform: none !important;
}

.card-header {
  background: var(--ot-bg-muted) !important;
  color: var(--ot-text) !important;
  border-bottom: 1px solid var(--ot-border) !important;
  padding: 1rem 1.25rem !important;
}

.card-header h5 {
  color: var(--ot-text) !important;
  font-size: 1rem !important;
  font-weight: 600 !important;
}

.card-body {
  padding: 1.25rem !important;
}

/* Card images - consistent height */
.card .card-img-top {
  height: 200px;
  object-fit: cover;
  width: 100%;
}

.card.h-100 {
  display: flex;
  flex-direction: column;
}

.card.h-100 .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ---- Buttons ---- */
.btn {
  border-radius: 8px !important;
  font-weight: 500 !important;
  transition: all 0.15s ease !important;
  box-shadow: none !important;
}

.btn:hover {
  transform: none !important;
  box-shadow: none !important;
}

.btn:active {
  transform: scale(0.98) !important;
}

.btn-primary {
  background: var(--ot-primary) !important;
  border-color: var(--ot-primary) !important;
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--ot-primary-hover) !important;
  border-color: var(--ot-primary-hover) !important;
}

.btn-success {
  background: var(--ot-success) !important;
  border: none !important;
}

.btn-success:hover {
  background: #15803d !important;
}

.btn-outline-primary {
  border: 1.5px solid var(--ot-primary) !important;
  color: var(--ot-primary) !important;
  background: transparent !important;
}

.btn-outline-primary:hover {
  background: var(--ot-primary) !important;
  border-color: var(--ot-primary) !important;
  color: #fff !important;
}

.btn-outline-secondary {
  border: 1.5px solid var(--ot-border) !important;
  color: var(--ot-text-secondary) !important;
}

.btn-outline-secondary:hover {
  background: var(--ot-bg-muted) !important;
  border-color: #cbd5e1 !important;
  color: var(--ot-text) !important;
}

.btn-lg {
  padding: 0.7rem 1.75rem !important;
  font-size: 1rem !important;
}

/* ---- Badges ---- */
.badge {
  font-weight: 500 !important;
  font-size: 0.8rem !important;
  padding: 0.35em 0.65em !important;
  border-radius: 6px !important;
  box-shadow: none !important;
}

.badge.bg-primary {
  background-color: var(--ot-primary) !important;
}

/* ---- Alerts ---- */
.alert {
  border-radius: var(--ot-radius) !important;
  border: 1px solid var(--ot-border) !important;
  box-shadow: none !important;
  padding: 1rem 1.25rem !important;
  background: var(--ot-bg-muted) !important;
  border-left: 3px solid var(--ot-primary) !important;
}

.alert-success {
  background: #f0fdf4 !important;
  border-left-color: var(--ot-success) !important;
  border-color: #bbf7d0 !important;
  color: #166534 !important;
}

.alert-warning {
  background: #fefce8 !important;
  border-left-color: #ca8a04 !important;
  border-color: #fef08a !important;
  color: #854d0e !important;
}

.alert-danger {
  background: #fef2f2 !important;
  border-left-color: var(--ot-danger) !important;
  border-color: #fecaca !important;
  color: #991b1b !important;
}

.alert-info {
  background: var(--ot-primary-light) !important;
  border-left-color: var(--ot-primary) !important;
  border-color: #b8d4dc !important;
  color: #1e4a5a !important;
}

/* ---- Forms ---- */
.form-control,
.form-select {
  border: 1px solid var(--ot-border) !important;
  border-radius: 8px !important;
  padding: 0.55rem 0.85rem !important;
  font-size: 0.925rem !important;
  transition: border-color 0.15s ease !important;
  box-shadow: none !important;
  background: var(--ot-bg) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--ot-primary) !important;
  box-shadow: 0 0 0 3px rgba(var(--ot-primary-rgb), 0.12) !important;
}

/* ---- Page Structure ---- */
.section { padding: 0; }
section.py-5 { padding: 3rem 0; }

/* Section titles - used in course-list, tutorial-list */
.section-title { text-align: center; margin-bottom: 2.5rem; }
.section-title h2 { font-size: 1.75rem; font-weight: 700; color: var(--ot-text); margin-bottom: 0.5rem; }
.section-title p { color: var(--ot-text-secondary); font-size: 1rem; }

/* ---- Page title / breadcrumbs ---- */
.page-title {
  padding: 1.5rem 0 !important;
  background: var(--ot-bg-muted) !important;
}

.page-title h1 {
  font-size: 1.5rem !important;
  font-weight: 700 !important;
}

.breadcrumb-item a {
  color: var(--ot-primary) !important;
}

/* ---- Header (public site) ---- */
#header {
  --nav-color: var(--ot-text-secondary);
  --nav-hover-color: var(--ot-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06) !important;
  background: var(--ot-bg) !important;
}

#header .sitename {
  color: var(--ot-primary) !important;
}

#navmenu a,
#navmenu a:focus {
  color: var(--ot-text-secondary) !important;
  font-weight: 500 !important;
}

#navmenu a:hover,
#navmenu li:hover > a,
#navmenu a.active,
#navmenu a.active:focus {
  color: var(--ot-primary) !important;
}

#navmenu > ul > li > a::before {
  background-color: var(--ot-primary) !important;
}

.btn-getstarted {
  background: var(--ot-primary) !important;
  color: #fff !important;
  border-radius: 8px !important;
}

.btn-getstarted:hover {
  background: var(--ot-primary-hover) !important;
  color: #fff !important;
}

/* Mobile nav */
.mobile-nav-toggle {
  color: var(--ot-text) !important;
}

.mobile-nav-active .navmenu a,
.mobile-nav-active .navmenu a:focus {
  color: var(--ot-text-secondary) !important;
}

.mobile-nav-active .navmenu a:hover,
.mobile-nav-active .navmenu a.active {
  color: var(--ot-primary) !important;
}

/* ---- Footer ---- */
/* Footer styles are now inline in footer.html template */

/* ---- Exam Detail ---- */
.course-hero {
  background: var(--ot-bg) !important;
  padding: 2rem !important;
  border-radius: var(--ot-radius-lg) !important;
  border: 1px solid var(--ot-border) !important;
  box-shadow: var(--ot-shadow-sm) !important;
}

.course-hero .h1 {
  color: var(--ot-text) !important;
  font-size: 1.5rem !important;
}

.course-hero .course-subtitle {
  color: var(--ot-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.course-badge {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.course-badge .category,
.course-badge .level {
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
}

.course-badge .category { background: var(--ot-primary); }
.course-badge .level { background: var(--ot-success); }

.instructor-card-detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--ot-bg-muted);
  border-radius: var(--ot-radius);
  border: 1px solid var(--ot-border);
}

.instructor-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.instructor-icon-lg {
  font-size: 2.5rem;
  color: var(--ot-primary);
}

.instructor-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--ot-text-secondary);
}

.hero-image {
  position: relative;
  border-radius: var(--ot-radius-lg);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
}

.play-overlay.unavailable {
  background: rgba(202,138,4,0.9);
  color: #000;
  cursor: not-allowed;
}

.private-exam-section {
  padding: 1rem;
  border-radius: 8px;
}

.qr-code-container {
  text-align: center;
  padding: 0.5rem 0;
}

.qr-code-wrapper {
  background: #fff;
  padding: 0.75rem;
  border-radius: var(--ot-radius);
  border: 1px solid var(--ot-border) !important;
  display: inline-block;
  margin-bottom: 0.5rem;
  box-shadow: none !important;
}

.qr-code-wrapper:hover {
  transform: none !important;
  border-color: var(--ot-border) !important;
  box-shadow: none !important;
}

.qr-code-image {
  width: 180px;
  height: 180px;
  display: block;
  margin: 0 auto;
}

.qr-code-text {
  color: var(--ot-text-secondary);
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.content-section {
  padding: 1.5rem !important;
  background: var(--ot-bg) !important;
  border-radius: var(--ot-radius-lg) !important;
  border: 1px solid var(--ot-border) !important;
  box-shadow: var(--ot-shadow-sm) !important;
  margin-bottom: 1.5rem !important;
}

.content-section h3 {
  color: var(--ot-text) !important;
  border-bottom: 1px solid var(--ot-border) !important;
  font-size: 1.1rem !important;
  padding-bottom: 0.5rem !important;
  margin-bottom: 1rem !important;
}

.info-item {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius) !important;
  padding: 1rem !important;
  box-shadow: none !important;
  transition: background 0.15s ease !important;
}

.info-item:hover {
  transform: none !important;
  border-color: var(--ot-border) !important;
  box-shadow: none !important;
  background: var(--ot-bg-muted) !important;
}

.info-item i {
  color: var(--ot-primary) !important;
  font-size: 1.25rem !important;
}

.sidebar-card {
  background: var(--ot-bg) !important;
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius-lg) !important;
  box-shadow: var(--ot-shadow-sm) !important;
  padding: 1.25rem !important;
  margin-bottom: 1rem !important;
}

.sidebar-card:hover {
  box-shadow: var(--ot-shadow) !important;
}

.sidebar-card h5 {
  color: var(--ot-text) !important;
  border-bottom: 1px solid var(--ot-border) !important;
  font-size: 0.95rem !important;
  padding-bottom: 0.5rem !important;
  margin-bottom: 1rem !important;
}

/* ---- Quiz Result ---- */
.score-circle {
  background: var(--ot-primary) !important;
  box-shadow: var(--ot-shadow-lg) !important;
}

.score-circle::before {
  display: none !important;
}

.score-circle:hover {
  transform: none !important;
}

.stat-card {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius) !important;
  box-shadow: var(--ot-shadow-sm) !important;
  padding: 1.25rem !important;
}

.stat-card::before {
  display: none !important;
}

.stat-card:hover {
  transform: none !important;
  box-shadow: var(--ot-shadow) !important;
  border-color: var(--ot-border) !important;
}

.stat-card:hover .stat-icon {
  transform: none !important;
}

.stat-card-border {
  border: 1px solid var(--ot-border) !important;
}

.result-item {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius) !important;
  padding: 1.25rem !important;
  box-shadow: var(--ot-shadow-sm) !important;
}

.result-item:hover {
  box-shadow: var(--ot-shadow) !important;
  transform: none !important;
  border-color: var(--ot-border) !important;
}

.result-item:hover .question-number {
  transform: none !important;
}

.result-item-correct {
  border-left: 3px solid var(--ot-success) !important;
  background: #fafffe !important;
}

.result-item-incorrect {
  border-left: 3px solid var(--ot-danger) !important;
  background: #fffafa !important;
}

.result-item-unanswered {
  border-left: 3px solid #94a3b8 !important;
  background: var(--ot-bg) !important;
}

.result-item-correct::before,
.result-item-incorrect::before,
.result-item-unanswered::before {
  display: none !important;
}

.question-number {
  background: var(--ot-primary) !important;
  box-shadow: none !important;
}

.status-badge {
  box-shadow: none !important;
  border-radius: 6px !important;
  font-size: 0.8rem !important;
}

.status-badge:hover {
  transform: none !important;
}

.status-primary {
  background: var(--ot-primary-light) !important;
  border: 1px solid #b8d4dc !important;
  color: var(--ot-primary) !important;
}

.question-text {
  background: var(--ot-bg-muted) !important;
  border-left: 3px solid var(--ot-primary) !important;
  border-radius: 6px !important;
}

.answer-box {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius) !important;
  box-shadow: none !important;
}

.answer-box:hover {
  box-shadow: none !important;
  transform: none !important;
}

.answer-box-user {
  border-color: #b8d4dc !important;
}

.answer-box-user .answer-box-header {
  background: var(--ot-primary-light) !important;
  color: var(--ot-primary) !important;
  border-bottom: 1px solid #b8d4dc !important;
}

.answer-box-correct {
  border-color: #bbf7d0 !important;
}

.answer-box-correct .answer-box-header {
  background: #f0fdf4 !important;
  color: #166534 !important;
  border-bottom: 1px solid #bbf7d0 !important;
}

.results-summary {
  border: 1px solid var(--ot-border) !important;
  background: var(--ot-bg-muted) !important;
  border-radius: var(--ot-radius) !important;
  box-shadow: none !important;
}

.result-summary-card,
.extra-questions-card,
.detailed-results-card,
.actions-card {
  border: 1px solid var(--ot-border) !important;
}

.result-summary-card:hover,
.extra-questions-card:hover,
.detailed-results-card:hover,
.actions-card:hover {
  border-color: var(--ot-border) !important;
  box-shadow: var(--ot-shadow) !important;
}

.result-ribbon {
  box-shadow: none !important;
}

.result-ribbon:hover {
  transform: none !important;
}

.completion-icon-large {
  animation: none !important;
}

/* ---- Instructor/Creator Cards ---- */
.instructor-card {
  box-shadow: var(--ot-shadow-sm) !important;
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius-lg) !important;
}

.instructor-card:hover {
  transform: none !important;
  box-shadow: var(--ot-shadow-lg) !important;
}

.instructor-card:hover .instructor-image img {
  transform: none !important;
}

/* ---- Creator Panel: Sidebar ---- */
.sidebar {
  background: var(--ot-primary) !important;
  box-shadow: none !important;
}

.sidebar::-webkit-scrollbar-thumb {
  background-color: rgba(255,255,255,0.3) !important;
}

.sidebar-nav .nav-heading {
  color: rgba(255,255,255,0.5) !important;
  font-size: 0.7rem !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
}

.sidebar-nav .nav-link {
  color: rgba(255,255,255,0.8) !important;
  background: transparent !important;
  border-radius: 8px !important;
  margin-bottom: 2px !important;
}

.sidebar-nav .nav-link i {
  color: rgba(255,255,255,0.7) !important;
}

.sidebar-nav .nav-link:hover {
  background: rgba(255,255,255,0.12) !important;
  color: #fff !important;
}

.sidebar-nav .nav-link:hover i {
  color: #fff !important;
}

.sidebar-nav .nav-link:not(.collapsed) {
  background: rgba(255,255,255,0.15) !important;
  color: #fff !important;
}

.sidebar-nav .nav-link:not(.collapsed) i {
  color: #fff !important;
}

.sidebar-nav .nav-link.collapsed {
  color: rgba(255,255,255,0.75) !important;
}

.sidebar-nav .nav-link.collapsed i {
  color: rgba(255,255,255,0.6) !important;
}

.sidebar-nav .nav-content a {
  color: rgba(255,255,255,0.7) !important;
}

.sidebar-nav .nav-content a:hover,
.sidebar-nav .nav-content a.active {
  color: #fff !important;
}

.sidebar-nav .nav-content a.active i {
  color: #fff !important;
}

/* ---- Back to top button ---- */
.back-to-top {
  background: var(--ot-primary) !important;
  border-radius: var(--ot-radius) !important;
}
.back-to-top:hover {
  background: var(--ot-primary-hover) !important;
}

/* ---- Creator Panel: Header ---- */
#header.header {
  background: var(--ot-bg) !important;
  border-bottom: 1px solid var(--ot-border) !important;
  box-shadow: none !important;
}

#header .logo span {
  color: var(--ot-primary) !important;
}

#header .toggle-sidebar-btn {
  color: var(--ot-primary) !important;
}

#header .search-bar input {
  border: 1px solid var(--ot-border) !important;
  border-radius: 8px !important;
  background: var(--ot-bg-muted) !important;
}

#header .nav-profile .dropdown-toggle {
  color: var(--ot-text) !important;
}

/* ---- Creator Panel Overrides ---- */
.creator-main-card {
  border: 1px solid var(--ot-border) !important;
  border-radius: var(--ot-radius-lg) !important;
  box-shadow: var(--ot-shadow-sm) !important;
}

.creator-main-card:hover {
  box-shadow: var(--ot-shadow) !important;
}

.creator-card-header {
  background: var(--ot-bg-muted) !important;
  color: var(--ot-text) !important;
  border-radius: var(--ot-radius-lg) var(--ot-radius-lg) 0 0 !important;
}

.creator-card-header h5,
.creator-card-header .card-title {
  color: var(--ot-text) !important;
}

.creator-search-input-group {
  border: 1px solid var(--ot-border) !important;
}

.creator-search-input-group .input-group-text {
  background: var(--ot-bg-muted) !important;
  color: var(--ot-text-secondary) !important;
}

.creator-stat-card {
  border: 1px solid var(--ot-border) !important;
  box-shadow: var(--ot-shadow-sm) !important;
}

.creator-grid-card {
  border: 1px solid var(--ot-border) !important;
  box-shadow: var(--ot-shadow-sm) !important;
}

.creator-modal .modal-content {
  border: 1px solid var(--ot-border) !important;
}

.creator-modal .modal-header {
  background: var(--ot-primary) !important;
  color: #fff !important;
}

.creator-modal .modal-title {
  color: #fff !important;
}

.creator-table th {
  border-bottom: 1px solid var(--ot-border) !important;
}

.creator-table thead {
  background-color: var(--ot-bg-muted) !important;
}

.creator-table thead.table-primary {
  background-color: var(--ot-bg-muted) !important;
}

.table tbody tr:hover {
  background-color: var(--ot-primary-light) !important;
}

/* Card icon circles in dashboard */
.card-icon {
  background: var(--ot-primary-light) !important;
  color: var(--ot-primary) !important;
}

.card-icon i {
  color: var(--ot-primary) !important;
}

/* Responsive exam image */
.exam-thumbnail {
  max-width: 100% !important;
  height: auto !important;
  width: auto !important;
  display: block !important;
}

@media (max-width: 576px) {
  .exam-thumbnail {
    width: 100% !important;
  }
}

/* ---- Pagination ---- */
.pagination .page-link {
  border: 1px solid var(--ot-border) !important;
  color: var(--ot-text-secondary) !important;
  border-radius: 6px !important;
  padding: 0.4rem 0.75rem !important;
}

.pagination .page-link:hover {
  background: var(--ot-bg-muted) !important;
  color: var(--ot-primary) !important;
}

.pagination .page-item.active .page-link {
  background: var(--ot-primary) !important;
  border-color: var(--ot-primary) !important;
  color: #fff !important;
}

.creator-pagination .page-link {
  border-color: var(--ot-border) !important;
  color: var(--ot-text-secondary) !important;
}

.creator-pagination .page-item.active .page-link {
  background-color: var(--ot-primary) !important;
  border-color: var(--ot-primary) !important;
}

/* ---- Stats section (home) ---- */
.stats-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ot-primary-light) !important;
}

.stats-icon i {
  display: block;
}

.stats-icon:hover {
  transform: none !important;
}

/* Border-top stats */
.border-top h3 {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

/* ---- Home hero ---- */
section.bg-light {
  background: var(--ot-bg-muted) !important;
}

/* ---- Course cards ---- */
.course-card {
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius-lg);
  overflow: hidden;
  box-shadow: var(--ot-shadow-sm);
  transition: box-shadow 0.2s ease;
  background: var(--ot-bg);
}

.course-card:hover {
  box-shadow: var(--ot-shadow-lg);
}

.course-card .course-image {
  position: relative;
  height: 200px;
  overflow: hidden;
  border-radius: var(--ot-radius-lg) var(--ot-radius-lg) 0 0;
}

.course-card .course-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-card .course-badge {
  position: absolute;
  top: 10px;
  right: 10px;
}

.course-card .course-content {
  padding: 1.25rem;
}

.course-card .course-title a {
  color: var(--ot-text);
  font-weight: 600;
}

.course-card .course-title a:hover {
  color: var(--ot-primary);
}

.course-card .course-description {
  color: var(--ot-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.course-card .course-footer .price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ot-primary);
}

/* ---- Tutorial cards ---- */
.tutorial-card {
  transition: box-shadow 0.2s ease;
}

.tutorial-card:hover {
  box-shadow: var(--ot-shadow-lg);
}

.tutorial-card .tutorial-thumbnail {
  position: relative;
  height: 200px;
  overflow: hidden;
  border-radius: var(--ot-radius-lg) var(--ot-radius-lg) 0 0;
}

.tutorial-card .tutorial-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tutorial-card .play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.9);
  pointer-events: none;
}

.tutorial-card .duration-badge {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
}

.tutorial-card .tutorial-content {
  padding: 1.25rem;
}

.tutorial-card .tutorial-title a {
  color: var(--ot-text);
  font-weight: 600;
}

.tutorial-card .tutorial-title a:hover {
  color: var(--ot-primary);
}

.tutorial-card .tutorial-description {
  color: var(--ot-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

/* ---- Course detail page ---- */
.course-detail-section .course-image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--ot-radius-lg);
}

.course-detail-section .meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.course-detail-section .section-item {
  padding: 1.25rem;
  background: var(--ot-bg);
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius);
  margin-bottom: 1rem;
}

.course-detail-section .section-header h4 {
  font-size: 1.1rem;
  font-weight: 600;
}

.course-detail-section .lesson-item {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--ot-border);
}

.course-detail-section .lesson-item:last-child {
  border-bottom: none;
}

.course-detail-section .lesson-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0;
}

.course-detail-section .lesson-description {
  font-size: 0.85rem;
  color: var(--ot-text-secondary);
  margin: 0.25rem 0 0;
}

.course-detail-section .lesson-duration {
  font-size: 0.85rem;
  color: var(--ot-text-secondary);
}

.course-detail-section .enrollment-card {
  background: var(--ot-bg-muted);
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius-lg);
}

.course-detail-section .price-display {
  font-size: 2rem;
  font-weight: 700;
  color: var(--ot-primary);
}

.course-detail-section .instructor-avatar img {
  width: 60px;
  height: 60px;
  object-fit: cover;
}

.course-detail-section .list-unstyled i {
  width: 20px;
  margin-right: 8px;
  color: var(--ot-primary);
}

/* ---- Filter sections ---- */
.course-filters,
.tutorial-filters {
  background: var(--ot-bg-muted);
  padding: 1.25rem;
  border-radius: var(--ot-radius);
  border: 1px solid var(--ot-border);
}

/* ---- Lesson detail page ---- */
.video-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-player {
  width: 100%;
  height: auto;
}

.content-body p {
  margin-bottom: 15px;
}

.content-body ul, .content-body ol {
  margin-bottom: 15px;
  padding-left: 30px;
}

.content-body blockquote {
  padding-left: 20px;
  margin: 20px 0;
  font-style: italic;
}

.lesson-detail-section .lesson-item {
  padding: 10px;
  margin-bottom: 5px;
}

.lesson-detail-section .lesson-item .lesson-title {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.lesson-detail-section .stat-item {
  text-align: center;
}

.lesson-detail-section .stat-item i {
  display: block;
  margin-bottom: 5px;
}

.lesson-detail-section .list-unstyled i {
  width: 20px;
  margin-right: 10px;
}

/* ---- Lesson sidebar items ---- */
.lesson-item {
  transition: background 0.15s ease;
  border-radius: 6px;
}

.lesson-item:hover {
  background: var(--ot-bg-muted);
}

.lesson-item.active {
  background: var(--ot-primary-light);
  border-left: 3px solid var(--ot-primary);
}

/* ---- Enrollment form wrapper ---- */
.enrollment-form-wrapper {
  background: var(--ot-bg);
  padding: 2rem;
  border-radius: var(--ot-radius-lg);
  border: 1px solid var(--ot-border);
  box-shadow: var(--ot-shadow-sm);
}

.enrollment-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ot-text);
}

.enrollment-header p {
  color: var(--ot-text-secondary);
}

.btn-enroll {
  background: var(--ot-primary);
  color: #fff;
  border: none;
  padding: 0.7rem 2rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 1rem;
}

.btn-enroll:hover {
  background: var(--ot-primary-hover);
  color: #fff;
}

.enrollment-note {
  color: var(--ot-text-secondary);
  font-size: 0.85rem;
}

/* ---- Contact page ---- */
.contact-main-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.map-wrapper {
  border-radius: var(--ot-radius-lg);
  overflow: hidden;
  min-height: 400px;
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
}

.contact-cards-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--ot-bg-muted);
  border-radius: var(--ot-radius);
  border: 1px solid var(--ot-border);
}

.contact-card .icon-box {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--ot-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-card h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.contact-card p {
  font-size: 0.85rem;
  color: var(--ot-text-secondary);
  margin: 0;
}

.contact-form-container h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.contact-form-container > p {
  color: var(--ot-text-secondary);
  margin-bottom: 1.5rem;
}

.form-submit button {
  background: var(--ot-primary);
  color: #fff;
  border: none;
  padding: 0.7rem 2rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
}

.form-submit button:hover {
  background: var(--ot-primary-hover);
}

.form-submit {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
}

.form-submit .social-links {
  display: flex;
  gap: 0.5rem;
}

.form-submit .social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ot-bg-muted);
  color: var(--ot-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ot-border);
}

.form-submit .social-links a:hover {
  background: var(--ot-primary);
  color: #fff;
}

.php-email-form .loading {
  display: none;
  background: var(--ot-bg-muted);
  text-align: center;
  padding: 0.75rem;
  border-radius: 8px;
  color: var(--ot-text-secondary);
}

.php-email-form .error-message {
  display: none;
  background: #fef2f2;
  color: #991b1b;
  padding: 0.75rem;
  border-radius: 8px;
}

.php-email-form .sent-message {
  display: none;
  background: #f0fdf4;
  color: #166534;
  padding: 0.75rem;
  border-radius: 8px;
}

/* ---- Privacy policy scroll offset ---- */
[id^="data-"], #cookies, #terms, #contact-section {
  scroll-margin-top: 100px;
}

/* ---- Creator dashboard utilities ---- */
.creator-card-title {
  font-size: 0.9rem;
}

.creator-stat-value {
  font-size: 0.8rem;
}

.creator-activity-time {
  font-size: 0.75rem;
}

.creator-activity-text {
  font-size: 0.8rem;
}

.creator-content-title {
  font-size: 0.85rem;
}

.creator-content-desc {
  font-size: 0.75rem;
}

.creator-empty-icon {
  font-size: 2rem;
  opacity: 0.4;
}

.creator-empty-text {
  font-size: 0.85rem;
}

.content-thumbnail-placeholder {
  width: 48px;
  height: 48px;
  background: var(--ot-bg-muted);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  float: left;
  margin-right: 12px;
}

.content-thumbnail {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
}

.content-thumbnail-sm {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 6px;
}

.content-thumbnail-placeholder-sm {
  width: 36px;
  height: 36px;
  background: var(--ot-bg-muted);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- Tutorial detail meta ---- */
.tutorial-detail-section .meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* ---- Focus ---- */
*:focus {
  outline: 2px solid var(--ot-primary) !important;
  outline-offset: 2px !important;
}

button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--ot-primary) !important;
  outline-offset: 2px !important;
}

/* ---- Social links ---- */
.social-links a:hover {
  background: var(--ot-primary) !important;
  transform: none !important;
}

/* ---- Misc overrides ---- */
.btn-view {
  background: var(--ot-primary) !important;
  border-radius: 8px !important;
}

.btn-view:hover {
  background: var(--ot-primary-hover) !important;
  transform: none !important;
  box-shadow: none !important;
}

.play-overlay:hover {
  transform: translate(-50%, -50%) !important;
}

.meta-item:hover {
  border-color: var(--ot-border) !important;
}

.schedule-item:hover {
  border-color: var(--ot-border) !important;
}

.exam-rules li:hover {
  border-color: var(--ot-border) !important;
}

/* ---- Activity badge in creator dashboard ---- */
.activity-badge.text-primary {
  color: var(--ot-primary) !important;
}

/* ---- Progress bar ---- */
.progress-bar {
  background-color: var(--ot-primary) !important;
}

/* ---- Links ---- */
a {
  color: var(--ot-primary);
}

a:hover {
  color: var(--ot-primary-hover);
}

/* ---- Dropdown active ---- */
.dropdown-item.active,
.dropdown-item:active {
  background-color: var(--ot-primary) !important;
}

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

@media (max-width: 768px) {
  .card .card-img-top { height: 180px; }
  .stats-icon { width: 48px; height: 48px; }
  .stats-icon i { font-size: 1.75rem !important; }
  .border-top h3 { font-size: 1.75rem; }
  .course-hero { padding: 1.25rem !important; }
  .instructor-card-detail { flex-direction: column; text-align: center; }
  .info-grid { grid-template-columns: 1fr !important; }
  .qr-code-image { width: 140px; height: 140px; }
  .contact-main-wrapper { grid-template-columns: 1fr; }
  .contact-cards-container { grid-template-columns: 1fr; }
  .form-submit { flex-direction: column; gap: 1rem; }
  .course-detail-section .course-image img { height: 200px; }
}

/* ============================================
   Homepage (hp-*) Styles
   ============================================ */

/* ── Hero ── */
.hp-hero {
    padding: 5rem 0 4rem;
    background: linear-gradient(135deg, #f8fafb 0%, #eef5f7 100%);
}

.hp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.08);
    padding: 0.4rem 0.85rem;
    border-radius: 20px;
    margin-bottom: 1.25rem;
}

.hp-hero-badge i {
    font-size: 0.85rem;
}

.hp-hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--ot-text);
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hp-hero-accent {
    color: var(--ot-primary);
}

.hp-hero-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--ot-text-secondary);
    margin-bottom: 2rem;
    max-width: 480px;
}

.hp-hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.hp-hero-img {
    position: relative;
}

.hp-hero-img img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(61, 107, 122, 0.12);
}

/* ── Buttons ── */
.hp-btn-primary {
    background: var(--ot-primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.7rem 1.75rem;
    transition: background 0.2s ease, transform 0.15s ease;
}

.hp-btn-primary:hover {
    background: var(--ot-primary-hover);
    color: #fff;
    transform: translateY(-1px);
}

.hp-btn-outline {
    background: transparent;
    color: var(--ot-primary);
    border: 1.5px solid var(--ot-primary);
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.7rem 1.75rem;
    transition: all 0.2s ease;
}

.hp-btn-outline:hover {
    background: var(--ot-primary);
    color: #fff;
}

/* ── Stats ── */
.hp-stats {
    padding: 0;
    margin-top: -2rem;
    position: relative;
    z-index: 2;
}

.hp-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--ot-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.hp-stat {
    text-align: center;
    padding: 2rem 1rem;
    position: relative;
}

.hp-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 25%;
    height: 50%;
    width: 1px;
    background: var(--ot-border);
}

.hp-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
}

.hp-stat-icon--users { background: rgba(61, 107, 122, 0.1); color: #3d6b7a; }
.hp-stat-icon--exams { background: rgba(16, 163, 74, 0.1); color: #16a34a; }
.hp-stat-icon--courses { background: rgba(99, 102, 241, 0.1); color: #6366f1; }
.hp-stat-icon--score { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }

.hp-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ot-text);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.hp-stat-label {
    font-size: 0.8rem;
    color: var(--ot-text-secondary);
    font-weight: 500;
}

/* ── Sections ── */
.hp-section {
    padding: 4.5rem 0;
}

.hp-section--alt {
    background: var(--ot-bg-muted);
}

.hp-section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.hp-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--ot-text);
}

.hp-section-sub {
    font-size: 0.95rem;
    color: var(--ot-text-secondary);
    margin: 0;
}

.hp-section-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ot-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
    transition: color 0.15s;
}

.hp-section-link:hover {
    color: var(--ot-primary-hover);
}

/* ── Exam Cards ── */
.hp-exam-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 14px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.hp-exam-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    color: inherit;
}

.hp-exam-img {
    position: relative;
    aspect-ratio: 2.2 / 1;
    overflow: hidden;
}

.hp-exam-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hp-exam-card:hover .hp-exam-img img {
    transform: scale(1.03);
}

.hp-exam-type {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: var(--ot-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.hp-exam-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.hp-exam-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--ot-text);
    line-height: 1.35;
}

.hp-exam-desc {
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
    flex: 1;
}

.hp-exam-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.78rem;
    color: var(--ot-text-secondary);
    padding-top: 0.75rem;
    border-top: 1px solid var(--ot-border);
    margin-top: auto;
}

.hp-exam-meta i {
    margin-right: 0.2rem;
    color: var(--ot-primary);
    font-size: 0.82rem;
}

/* ── Course Cards ── */
.hp-course-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 14px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.hp-course-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    color: inherit;
}

.hp-course-img {
    position: relative;
    aspect-ratio: 2.2 / 1;
    overflow: hidden;
}

.hp-course-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hp-course-card:hover .hp-course-img img {
    transform: scale(1.03);
}

.hp-course-level {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: var(--ot-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
}

.hp-course-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.hp-course-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--ot-text);
    line-height: 1.35;
}

.hp-course-desc {
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
    flex: 1;
}

.hp-course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--ot-border);
    margin-top: auto;
    font-size: 0.78rem;
    color: var(--ot-text-secondary);
}

.hp-course-instructor i {
    color: var(--ot-primary);
    margin-right: 0.25rem;
}

.hp-course-stats {
    display: flex;
    gap: 0.6rem;
}

.hp-course-stats i {
    margin-right: 0.15rem;
}

/* ── Tutorial Cards ── */
.hp-tutorial-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 14px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.hp-tutorial-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    color: inherit;
}

.hp-tutorial-img {
    position: relative;
    aspect-ratio: 2.2 / 1;
    overflow: hidden;
}

.hp-tutorial-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hp-tutorial-card:hover .hp-tutorial-img img {
    transform: scale(1.03);
}

.hp-tutorial-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--ot-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hp-tutorial-card:hover .hp-tutorial-play {
    opacity: 1;
}

.hp-tutorial-body {
    padding: 1rem 1.25rem;
}

.hp-tutorial-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--ot-text);
    line-height: 1.35;
}

.hp-tutorial-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--ot-text-secondary);
}

.hp-tutorial-meta i {
    margin-right: 0.15rem;
}

/* ── CTA ── */
.hp-cta {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8fafb 0%, #eef5f7 100%);
}

.hp-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 16px;
    padding: 2.5rem 3rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.hp-cta-text h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.hp-cta-text p {
    color: var(--ot-text-secondary);
    margin: 0;
    font-size: 0.95rem;
}

.hp-cta-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* ── Empty state ── */
.hp-empty {
    text-align: center;
    padding: 3.5rem 1rem;
}

.hp-empty i {
    font-size: 2.5rem;
    color: #cbd5e1;
    display: block;
    margin-bottom: 0.75rem;
}

.hp-empty p {
    color: var(--ot-text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* ── Homepage Responsive ── */
@media (max-width: 991.98px) {
    .hp-hero {
        padding: 3.5rem 0 3rem;
    }

    .hp-hero-title {
        font-size: 2rem;
    }

    .hp-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hp-stat:not(:last-child)::after {
        display: none;
    }

    .hp-stat {
        padding: 1.5rem 1rem;
        border-bottom: 1px solid var(--ot-border);
    }

    .hp-stat:nth-child(odd) {
        border-right: 1px solid var(--ot-border);
    }

    .hp-stat:nth-last-child(-n+2) {
        border-bottom: none;
    }

    .hp-cta-inner {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1.5rem;
    }

    .hp-cta-actions {
        justify-content: center;
    }
}

@media (max-width: 575.98px) {
    .hp-hero {
        padding: 2.5rem 0 2rem;
    }

    .hp-hero-title {
        font-size: 1.65rem;
    }

    .hp-hero-desc {
        font-size: 0.95rem;
    }

    .hp-hero-actions {
        flex-direction: column;
    }

    .hp-hero-actions .btn {
        width: 100%;
        text-align: center;
    }

    .hp-section {
        padding: 3rem 0;
    }

    .hp-section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .hp-stats {
        margin-top: -1rem;
    }

    .hp-stat-value {
        font-size: 1.5rem;
    }

    .hp-cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .hp-cta-actions .btn {
        width: 100%;
    }
}

/* ============================================
   List Pages — shared (lp-*) Styles
   ============================================ */

/* ── Filter Bar ── */
.lp-filter-bar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1.25rem;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 14px;
}

.lp-search-box {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.lp-search-box i {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 0.9rem;
}

.lp-search-box input {
    width: 100%;
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    padding: 0.6rem 0.85rem 0.6rem 2.4rem;
    font-size: 0.9rem;
    transition: border-color 0.15s ease;
    background: var(--ot-bg-muted);
}

.lp-search-box input:focus {
    outline: none;
    border-color: var(--ot-primary);
    background: #fff;
}

.lp-select {
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    padding: 0.6rem 2rem 0.6rem 0.85rem;
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
    background: var(--ot-bg-muted) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e") no-repeat right 0.6rem center/0.7em;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: border-color 0.15s ease;
}

.lp-select:focus {
    outline: none;
    border-color: var(--ot-primary);
}

/* ── Card extras (used on list pages) ── */
.lp-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.6rem;
    margin-top: 0.5rem;
    font-size: 0.78rem;
    color: var(--ot-text-secondary);
}

.lp-instructor i {
    color: var(--ot-primary);
    margin-right: 0.2rem;
}

.lp-action-hint {
    font-weight: 600;
    color: var(--ot-primary);
}

.hp-exam-type--private {
    background: #475569 !important;
}

/* ── Exam List — responsive grid cards ── */
.lp-exam-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.lp-exam-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.lp-exam-card:hover {
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.07);
    transform: translateY(-2px);
    color: inherit;
}

.lp-exam-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.lp-exam-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.lp-exam-card:hover .lp-exam-thumb img {
    transform: scale(1.04);
}

.lp-exam-badge {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    background: var(--ot-primary);
    color: #fff;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.lp-exam-badge--private {
    background: #475569;
}

.lp-exam-info {
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.lp-exam-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ot-text);
    margin: 0 0 0.4rem;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lp-exam-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.72rem;
    color: var(--ot-text-secondary);
    margin-bottom: 0.6rem;
}

.lp-exam-tags i {
    color: var(--ot-primary);
    margin-right: 0.1rem;
    font-size: 0.72rem;
}

.lp-exam-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.5rem;
    border-top: 1px solid var(--ot-border);
}

.lp-exam-creator {
    font-size: 0.72rem;
    color: var(--ot-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 75%;
}

.lp-exam-creator i {
    color: var(--ot-primary);
    margin-right: 0.15rem;
}

.lp-exam-go {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(61, 107, 122, 0.08);
    color: var(--ot-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: background 0.15s ease;
}

.lp-exam-card:hover .lp-exam-go {
    background: var(--ot-primary);
    color: #fff;
}

/* Exam grid responsive */
@media (max-width: 1199.98px) {
    .lp-exam-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991.98px) {
    .lp-exam-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575.98px) {
    .lp-exam-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Rating stars ── */
.lp-rating {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
    color: var(--ot-text-secondary);
}

.lp-stars {
    display: flex;
    gap: 0.1rem;
}

.lp-stars i {
    font-size: 0.8rem;
    color: #f59e0b;
}

.lp-stars .bi-star {
    color: #cbd5e1;
}

/* ── Tutorial list extras ── */
.lp-duration {
    position: absolute;
    bottom: 0.75rem;
    right: 0.75rem;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.lp-tutorial-desc {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.lp-tutorial-stats {
    display: flex;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: #94a3b8;
    margin-top: 0.35rem;
}

.lp-tutorial-stats i {
    margin-right: 0.15rem;
    font-size: 0.7rem;
}

.lp-tutorial-stats .bi-heart-fill {
    color: #ef4444;
}

/* ── Pagination ── */
.lp-pagination {
    margin-top: 3rem;
    text-align: center;
}

.lp-pagination ul {
    display: inline-flex;
    gap: 0.35rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.lp-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.5rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ot-text-secondary);
    text-decoration: none;
    background: #fff;
    transition: all 0.15s ease;
}

.lp-page-btn:hover {
    border-color: var(--ot-primary);
    color: var(--ot-primary);
}

.lp-page-btn--active {
    background: var(--ot-primary);
    border-color: var(--ot-primary);
    color: #fff;
}

/* ── List pages responsive ── */
@media (max-width: 767.98px) {
    .lp-filter-bar {
        flex-direction: column;
        padding: 1rem;
    }

    .lp-search-box {
        width: 100%;
    }

    .lp-select {
        width: 100%;
    }

    .lp-filter-bar .btn {
        width: 100%;
    }
}

/* ============================================
   Contact Page (ct-*) Styles
   ============================================ */

.ct-info-panel {
    height: 100%;
}

.ct-info-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--ot-text);
}

.ct-info-desc {
    font-size: 0.95rem;
    color: var(--ot-text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.ct-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.ct-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    transition: box-shadow 0.15s ease;
}

.ct-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.ct-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(61, 107, 122, 0.08);
    color: var(--ot-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.ct-card strong {
    display: block;
    font-size: 0.85rem;
    color: var(--ot-text);
    margin-bottom: 0.15rem;
}

.ct-card p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
}

.ct-socials {
    display: flex;
    gap: 0.5rem;
}

.ct-socials a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1.5px solid var(--ot-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ot-text-secondary);
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.15s ease;
}

.ct-socials a:hover {
    background: var(--ot-primary);
    border-color: var(--ot-primary);
    color: #fff;
}

/* ── Form Panel ── */
.ct-form-panel {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 14px;
    padding: 2rem;
}

.ct-form-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--ot-text);
}

.ct-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ot-text-secondary);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.ct-input {
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    background: var(--ot-bg-muted);
}

.ct-input:focus {
    border-color: var(--ot-primary);
    box-shadow: 0 0 0 3px rgba(61, 107, 122, 0.08);
    background: #fff;
}

.ct-terms {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
}

.ct-terms a {
    color: var(--ot-primary);
    text-decoration: none;
}

.ct-terms a:hover {
    text-decoration: underline;
}

.ct-form-status {
    margin: 1rem 0;
}

.ct-form-status .loading,
.ct-form-status .error-message,
.ct-form-status .sent-message {
    display: none;
    font-size: 0.85rem;
    padding: 0.6rem 1rem;
    border-radius: 8px;
}

.ct-form-status .loading {
    background: rgba(61, 107, 122, 0.06);
    color: var(--ot-primary);
}

.ct-form-status .error-message {
    background: rgba(239, 68, 68, 0.06);
    color: #dc2626;
}

.ct-form-status .sent-message {
    background: rgba(22, 163, 74, 0.06);
    color: #16a34a;
}

.ct-submit {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.95rem;
}

/* ── Map ── */
.ct-map {
    margin-top: 1rem;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--ot-border);
}

.ct-map iframe {
    display: block;
}

/* ============================================
   Exam Detail (ed-*) Styles
   ============================================ */

/* ── Hero Image ── */
.ed-hero {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.ed-hero img {
    width: 100%;
    aspect-ratio: 2.4 / 1;
    object-fit: cover;
    display: block;
}

.ed-hero-overlay {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
}

.ed-type-badge {
    background: var(--ot-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.ed-type-badge--private {
    background: #475569;
}

/* ── Info Grid ── */
.ed-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.ed-info-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 10px;
    padding: 0.75rem;
}

.ed-info-item > i {
    font-size: 1.1rem;
    color: var(--ot-primary);
    flex-shrink: 0;
}

.ed-info-label {
    display: block;
    font-size: 0.7rem;
    color: var(--ot-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    line-height: 1;
    margin-bottom: 0.15rem;
}

.ed-info-item strong {
    font-size: 0.85rem;
    color: var(--ot-text);
}

/* ── Sections ── */
.ed-section {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.ed-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    color: var(--ot-text);
}

.ed-section-text {
    font-size: 0.9rem;
    color: var(--ot-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ── Dates ── */
.ed-date-row {
    display: flex;
    gap: 1rem;
}

.ed-date {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    background: var(--ot-bg-muted);
    border-radius: 8px;
}

.ed-date > i {
    font-size: 1rem;
    color: var(--ot-primary);
    flex-shrink: 0;
}

.ed-date strong {
    font-size: 0.85rem;
    color: var(--ot-text);
}

/* ── Alert ── */
.ed-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.ed-alert > i {
    font-size: 1.15rem;
    color: #f59e0b;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.ed-alert strong {
    display: block;
    font-size: 0.9rem;
    color: var(--ot-text);
    margin-bottom: 0.2rem;
}

.ed-alert p {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    margin: 0;
}

/* ── Creator ── */
.ed-creator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ed-creator-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(61, 107, 122, 0.1);
    color: var(--ot-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    flex-shrink: 0;
}

.ed-creator strong {
    display: block;
    font-size: 0.9rem;
    color: var(--ot-text);
}

.ed-creator-sub {
    display: block;
    font-size: 0.78rem;
    color: var(--ot-text-secondary);
    margin-top: 0.1rem;
}

.ed-creator-sub i {
    font-size: 0.72rem;
    margin-right: 0.2rem;
}

/* ── Sidebar Cards ── */
.ed-sidebar-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.ed-sidebar-card--primary {
    border-color: var(--ot-primary);
    border-width: 1.5px;
}

.ed-sidebar-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
}

.ed-sidebar-head i {
    font-size: 1.1rem;
    color: var(--ot-primary);
}

.ed-sidebar-head h5 {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
}

.ed-sidebar-hint {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.ed-sidebar-disabled {
    text-align: center;
    padding: 1rem 0;
    color: var(--ot-text-secondary);
}

.ed-sidebar-disabled i {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.4rem;
    opacity: 0.5;
}

.ed-sidebar-disabled p {
    margin: 0;
    font-size: 0.85rem;
}

/* Start button */
.ed-start-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.85rem;
    font-size: 1rem;
}

/* Special code input */
.ed-code-input {
    display: flex;
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.15s;
}

.ed-code-input:focus-within {
    border-color: var(--ot-primary);
}

.ed-code-input input {
    flex: 1;
    border: none;
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
    outline: none;
}

.ed-code-input button {
    border: none;
    background: var(--ot-primary);
    color: #fff;
    padding: 0 1rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.15s;
}

.ed-code-input button:hover {
    background: var(--ot-primary-hover);
}

/* Group quiz actions */
.ed-group-actions {
    display: flex;
    gap: .5rem;
}
.ed-group-btn {
    flex: 1;
    text-align: center;
}

/* Radio row */
.ed-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ot-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.35rem;
}

.ed-radio-row {
    display: flex;
    gap: 0.5rem;
}

.ed-radio {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ot-text-secondary);
    transition: all 0.15s;
}

.ed-radio:has(input:checked) {
    border-color: var(--ot-primary);
    color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.04);
}

.ed-radio input {
    display: none;
}

/* Time input */
.ed-time-input {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--ot-border);
    border-radius: 8px;
    overflow: hidden;
}

.ed-time-input input {
    flex: 1;
    border: none;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    outline: none;
}

.ed-time-input span {
    padding: 0 0.75rem;
    font-size: 0.8rem;
    color: var(--ot-text-secondary);
    background: var(--ot-bg-muted);
    border-left: 1px solid var(--ot-border);
    line-height: 2.5;
}

/* QR Code */
.ed-qr {
    text-align: center;
    padding: 0.5rem 0;
    margin-bottom: 0.75rem;
}

.ed-qr img {
    width: 140px;
    height: 140px;
    border-radius: 8px;
}

/* ── Exam Detail Responsive ── */
@media (max-width: 991.98px) {
    .ed-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575.98px) {
    .ed-info-grid {
        grid-template-columns: 1fr;
    }

    .ed-date-row {
        flex-direction: column;
    }

    .ed-hero img {
        aspect-ratio: 16 / 9;
    }
}


/* ═══════════════════════════════════════
   Extra Questions Page  (eq-*)
   ═══════════════════════════════════════ */

/* Exam info bar */
.eq-exam-bar {
    text-align: center;
    margin-bottom: 1.5rem;
}

.eq-exam-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--ot-text);
    margin: 0 0 0.35rem;
}

.eq-exam-desc {
    font-size: 0.88rem;
    color: var(--ot-text-secondary);
    line-height: 1.6;
    margin: 0 0 0.75rem;
}

.eq-exam-stats {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.eq-exam-stats span {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.eq-exam-stats i {
    color: var(--ot-primary);
    font-size: 0.9rem;
}

/* Form card */
.eq-form-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    padding: 1.5rem;
}

.eq-form-head {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--ot-border);
}

.eq-form-head > i {
    font-size: 1.3rem;
    color: var(--ot-primary);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.eq-form-head h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 0.15rem;
    color: var(--ot-text);
}

.eq-form-head p {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Field */
.eq-field {
    margin-bottom: 1.25rem;
}

.eq-label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ot-text);
    margin-bottom: 0.4rem;
}

.eq-required {
    color: #ef4444;
    margin-left: 0.15rem;
}

/* Input */
.eq-input {
    display: block;
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-size: 0.88rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.15s;
    background: #fff;
    color: var(--ot-text);
}

.eq-input:focus {
    border-color: var(--ot-primary);
}

.eq-input::placeholder {
    color: #b0b8c1;
}

/* Choice (radio / checkbox) */
.eq-choices {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.25rem;
}

.eq-choice {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.75rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--ot-text);
    transition: border-color 0.15s, background 0.15s;
    margin: 0;
}

.eq-choice:hover {
    border-color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.03);
}

.eq-choice input {
    display: none;
}

.eq-choice-mark {
    width: 18px;
    height: 18px;
    border: 2px solid #cbd5e0;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    transition: border-color 0.15s, background 0.15s;
}

.eq-choice-mark--check {
    border-radius: 4px;
}

.eq-choice input:checked ~ .eq-choice-mark {
    border-color: var(--ot-primary);
    background: var(--ot-primary);
}

.eq-choice input:checked ~ .eq-choice-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
}

.eq-choice input:checked ~ .eq-choice-mark--check::after {
    width: 10px;
    height: 6px;
    background: none;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    border-radius: 0;
    transform: translate(-50%, -60%) rotate(-45deg);
}

.eq-choice input:checked ~ span:last-child {
    font-weight: 600;
}

/* Terms */
.eq-terms {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ot-border);
}

.eq-terms .eq-choice {
    border: none;
    padding: 0;
    font-size: 0.84rem;
}

.eq-terms .eq-choice:hover {
    background: none;
}

.eq-terms a {
    color: var(--ot-primary);
    text-decoration: none;
    font-weight: 500;
}

.eq-terms a:hover {
    text-decoration: underline;
}

/* Actions */
.eq-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

@media (max-width: 575.98px) {
    .eq-form-card {
        padding: 1.15rem;
    }

    .eq-actions {
        flex-direction: column-reverse;
    }

    .eq-actions .btn {
        width: 100%;
    }

    .eq-exam-stats {
        gap: 0.75rem;
    }
}


/* ═══════════════════════════════════════
   Quiz Detail Page  (qz-*)
   ═══════════════════════════════════════ */

/* Sticky top bar */
.qz-topbar {
    background: #fff;
    border-bottom: 1px solid var(--ot-border);
    padding: 0.65rem 0 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.qz-topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.qz-topbar-left {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.qz-counter {
    background: var(--ot-primary);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
}

.qz-exam-name {
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

.qz-topbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Timer */
.qz-timer {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--ot-bg-muted);
    padding: 0.3rem 0.7rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--ot-text);
    transition: background 0.3s, color 0.3s;
}

.qz-timer i {
    font-size: 0.85rem;
    color: var(--ot-primary);
    transition: color 0.3s;
}

.qz-timer--warn {
    background: #fef3cd;
    color: #856404;
}

.qz-timer--warn i {
    color: #d89e00;
}

.qz-timer--danger {
    background: #f8d7da;
    color: #842029;
    animation: qz-pulse 1s ease-in-out infinite;
}

.qz-timer--danger i {
    color: #dc3545;
}

@keyframes qz-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Progress bar */
.qz-progress {
    height: 4px;
    background: var(--ot-bg-muted);
    border-radius: 0 0 4px 4px;
    overflow: hidden;
}

.qz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--ot-primary), var(--ot-primary-hover));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Question card */
.qz-question-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.qz-question-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.qz-question-num {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.08);
    padding: 0.2rem 0.55rem;
    border-radius: 6px;
}

.qz-question-type {
    font-size: 0.75rem;
    color: var(--ot-text-secondary);
}

.qz-question-card .question-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ot-text);
    line-height: 1.5;
    margin: 0 0 1.25rem;
}

/* Options */
.qz-question-card .options-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.qz-question-card .option-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.7rem 0.85rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
    background: #fff;
}

.qz-question-card .option-item:hover {
    border-color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.02);
}

.qz-question-card .option-item.selected {
    border-color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.06);
}

.qz-question-card .option-item .form-check-input {
    margin: 0;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.qz-question-card .option-item .form-check-input:checked {
    background-color: var(--ot-primary);
    border-color: var(--ot-primary);
}

.qz-question-card .option-item .option-text {
    font-size: 0.92rem;
    line-height: 1.4;
    color: var(--ot-text);
}

.qz-question-card .option-item.selected .option-text {
    font-weight: 600;
    color: var(--ot-primary);
}

/* Matching */
.qz-matching-hint {
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    margin-bottom: 0.75rem;
}

.qz-matching-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    padding: 0.5rem 0.65rem;
    background: var(--ot-bg-muted);
    border-radius: 8px;
}

.qz-matching-idx {
    width: 24px;
    height: 24px;
    background: var(--ot-primary);
    color: #fff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.qz-matching-left {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--ot-text);
    flex: 1;
    min-width: 80px;
}

.qz-matching-arrow {
    color: var(--ot-primary);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.qz-matching-select {
    flex: 1;
    max-width: 220px;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    border: 1.5px solid var(--ot-border);
    border-radius: 8px;
    outline: none;
    background: #fff;
    color: var(--ot-text);
}

.qz-matching-select:focus {
    border-color: var(--ot-primary);
}

/* Text input label */
.qz-text-label {
    display: block;
    font-size: 0.84rem;
    color: var(--ot-text-secondary);
    margin-bottom: 0.4rem;
}

/* Nav buttons */
.qz-nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.25rem;
    gap: 0.5rem;
}

.qz-nav-spacer {
    flex: 1;
}

.qz-finish-btn {
    background: #16a34a;
    color: #fff;
    border: none;
    padding: 0.55rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.15s;
}

.qz-finish-btn:hover {
    background: #15803d;
    color: #fff;
}

/* Question navigation grid */
.qz-nav-grid-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
}

.qz-nav-grid-head {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--ot-text-secondary);
    margin-bottom: 0.75rem;
}

.qz-nav-grid-head i {
    color: var(--ot-primary);
    font-size: 0.9rem;
}

.question-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    justify-content: center;
}

.question-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all 0.15s;
    background: var(--ot-bg-muted);
    color: var(--ot-text-secondary);
}

.question-nav-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.question-nav-btn.qz-nav--current {
    background: var(--ot-primary);
    color: #fff;
    border-color: var(--ot-primary);
    box-shadow: 0 0 0 2px rgba(61, 107, 122, 0.2);
}

.question-nav-btn.qz-nav--answered {
    background: #16a34a;
    color: #fff;
    border-color: #16a34a;
}

.question-nav-btn.qz-nav--empty {
    background: var(--ot-bg-muted);
    color: var(--ot-text-secondary);
    border-color: var(--ot-border);
}

/* Legend */
.qz-nav-legend {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.6rem;
}

.qz-legend-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    color: var(--ot-text-secondary);
}

.qz-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.qz-legend-dot--current {
    background: var(--ot-primary);
}

.qz-legend-dot--answered {
    background: #16a34a;
}

.qz-legend-dot--empty {
    background: var(--ot-bg-muted);
    border: 1px solid var(--ot-border);
}

/* Loading transition */
.question-content {
    transition: opacity 0.2s;
}

.question-content.updating {
    opacity: 0.5;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 575.98px) {
    .qz-topbar {
        padding: 0.5rem 0 0;
    }

    .qz-exam-name {
        max-width: 140px;
        font-size: 0.78rem;
    }

    .qz-question-card {
        padding: 1.15rem;
    }

    .qz-question-card .question-title {
        font-size: 1rem;
    }

    .qz-matching-row {
        flex-wrap: wrap;
    }

    .qz-matching-select {
        max-width: 100%;
        flex: 1 0 100%;
        margin-top: 0.3rem;
    }

    .question-nav-btn {
        width: 32px;
        height: 32px;
        font-size: 0.72rem;
    }
}

/* ============================================================
   Group Quiz  (gq-*)
   ============================================================ */

/* Generic card */
.gq-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius-lg);
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.gq-card-head {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--ot-border);
}

.gq-card-head i {
    font-size: 1.15rem;
    color: var(--ot-primary);
}

.gq-card-head h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--ot-text);
    flex: 1;
}

.gq-muted {
    color: var(--ot-text-secondary);
    font-size: 0.85rem;
    margin: 0;
}

.gq-badge {
    background: var(--ot-primary);
    color: #fff;
    border-radius: 20px;
    padding: 0.15rem 0.65rem;
    font-size: 0.82rem;
    font-weight: 700;
}

.gq-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--ot-radius);
    padding: 0.7rem 1rem;
    color: #b91c1c;
    font-size: 0.88rem;
    margin-bottom: 1rem;
}

.gq-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ot-text);
    margin-bottom: 0.3rem;
}

.gq-input {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius);
    font-size: 0.92rem;
    color: var(--ot-text);
    background: #fff;
    outline: none;
    transition: border-color 0.2s;
}

.gq-input:focus {
    border-color: var(--ot-primary);
}

.gq-pin-input {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.4rem;
}

/* Lobby */
.gq-pin {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--ot-primary);
    letter-spacing: 0.35rem;
    background: var(--ot-primary-light);
    display: inline-block;
    padding: 0.5rem 2rem;
    border-radius: var(--ot-radius);
}

.gq-participants {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    padding: 1rem 1.25rem;
    min-height: 50px;
}

.gq-participant-chip {
    background: var(--ot-bg-muted);
    border: 1px solid var(--ot-border);
    border-radius: 20px;
    padding: 0.3rem 0.75rem;
    font-size: 0.85rem;
    color: var(--ot-text);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    animation: gqPopIn 0.25s ease;
}

@keyframes gqPopIn {
    from { opacity: 0; transform: scale(0.8); }
    to   { opacity: 1; transform: scale(1); }
}

/* Play page — Top bar */
.gq-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.gq-topbar-left {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.gq-topbar-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.gq-counter {
    background: var(--ot-primary);
    color: #fff;
    border-radius: 20px;
    padding: 0.2rem 0.7rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.gq-exam-name {
    font-size: 0.85rem;
    color: var(--ot-text-secondary);
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gq-timer {
    background: var(--ot-primary);
    color: #fff;
    border-radius: 20px;
    padding: 0.2rem 0.7rem;
    font-size: 0.92rem;
    font-weight: 700;
    min-width: 3rem;
    text-align: center;
    transition: background 0.3s;
}

.gq-timer--warn  { background: #d97706; }
.gq-timer--danger { background: var(--ot-danger); }

.gq-my-score {
    background: var(--ot-primary-light);
    color: var(--ot-primary);
    border-radius: 20px;
    padding: 0.2rem 0.7rem;
    font-size: 0.92rem;
    font-weight: 700;
}

/* Timer bar */
.gq-timer-track {
    height: 4px;
    background: var(--ot-border);
    border-radius: 2px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.gq-timer-fill {
    height: 100%;
    background: var(--ot-primary);
    border-radius: 2px;
    width: 100%;
    transition: width 0.1s linear;
}

/* Views */
.gq-view { min-height: 200px; }

/* Question card */
.gq-question-card {
    padding: 1.5rem 1.25rem;
    text-align: center;
}

.gq-question-text {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ot-text);
    margin: 0;
    line-height: 1.5;
}

/* Answered bar */
.gq-answered-bar {
    text-align: center;
    font-size: 0.82rem;
    color: var(--ot-text-secondary);
    margin-bottom: 0.75rem;
}

.gq-answered-bar i {
    margin-right: 0.3rem;
    color: var(--ot-primary);
}

/* Option buttons */
.gq-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
    margin-bottom: 1rem;
}

.gq-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1rem;
    background: #fff;
    border: 2px solid var(--ot-border);
    border-radius: var(--ot-radius);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ot-text);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, opacity 0.3s;
    text-align: left;
    width: 100%;
}

.gq-option:hover:not(:disabled):not(.gq-option--reveal) {
    border-color: var(--ot-primary);
    background: var(--ot-primary-light);
}

.gq-option-label {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--ot-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.gq-option--selected {
    border-color: var(--ot-primary);
    background: var(--ot-primary-light);
}

.gq-option--dim {
    opacity: 0.35;
}

.gq-option--correct {
    border-color: var(--ot-success);
    background: #f0fdf4;
    opacity: 1;
}

.gq-option--correct .gq-option-label {
    background: var(--ot-success);
}

.gq-option-check {
    margin-left: auto;
    color: var(--ot-success);
    font-size: 1.1rem;
}

/* Feedback */
.gq-feedback {
    text-align: center;
    margin-bottom: 1rem;
}

.gq-fb {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.55rem 1.2rem;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 600;
}

.gq-fb--correct {
    background: #f0fdf4;
    color: var(--ot-success);
    border: 1px solid #bbf7d0;
}

.gq-fb--wrong {
    background: #fef2f2;
    color: var(--ot-danger);
    border: 1px solid #fecaca;
}

/* Countdown */
.gq-countdown-num {
    font-size: 5rem;
    font-weight: 900;
    color: var(--ot-primary);
    line-height: 1;
    animation: gqPulse 0.6s ease-in-out infinite alternate;
}

@keyframes gqPulse {
    from { transform: scale(1);    opacity: 1; }
    to   { transform: scale(1.15); opacity: 0.8; }
}

/* Leaderboard */
.gq-leaderboard {
    padding: 0.75rem 1.25rem;
}

.gq-lb-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--ot-radius);
    margin-bottom: 0.35rem;
    background: var(--ot-bg-muted);
    border: 1px solid var(--ot-border);
}

.gq-lb-row--top {
    background: var(--ot-primary-light);
    border-color: var(--ot-primary);
}

.gq-lb-rank {
    font-size: 1rem;
    min-width: 28px;
    text-align: center;
}

.gq-lb-name {
    flex: 1;
    font-size: 0.92rem;
    color: var(--ot-text);
}

.gq-lb-score {
    font-size: 1rem;
    color: var(--ot-primary);
}

/* Between footer */
.gq-between-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--ot-border);
}

.gq-skip-btn {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 640px) {
    .gq-options {
        grid-template-columns: 1fr;
    }

    .gq-topbar {
        flex-wrap: wrap;
        gap: 0.4rem;
    }

    .gq-pin {
        font-size: 1.8rem;
        padding: 0.4rem 1.5rem;
    }

    .gq-countdown-num {
        font-size: 4rem;
    }
}

/* ============================================================
   Certificate  (ct-*)
   ============================================================ */

.ct-cert {
    background: #fff;
    border: 3px solid var(--ot-primary);
    border-radius: var(--ot-radius-lg);
    padding: 3rem 3.5rem;
    text-align: center;
    position: relative;
    margin-bottom: 1.25rem;
}

.ct-border-top,
.ct-border-bottom {
    height: 3px;
    width: 60%;
    margin: 0 auto;
    background: linear-gradient(90deg, transparent, var(--ot-primary), transparent);
}

.ct-border-top  { margin-bottom: 2rem; }
.ct-border-bottom { margin-top: 2rem; }

.ct-logo {
    margin-bottom: 1.25rem;
}

.ct-logo img {
    height: 48px;
    width: auto;
}

.ct-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--ot-primary);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin: 0;
}

.ct-subtitle {
    font-size: 0.9rem;
    color: var(--ot-text-light);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0.3rem 0 0;
}

.ct-divider {
    width: 80px;
    height: 2px;
    background: var(--ot-primary);
    margin: 1.5rem auto;
}

.ct-intro {
    font-size: 0.95rem;
    color: var(--ot-text-light);
    font-style: italic;
    margin: 0 0 0.75rem;
}

.ct-name {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--ot-text);
    margin: 0 0 0.75rem;
    word-break: break-word;
}

.ct-exam-label {
    font-size: 0.88rem;
    color: var(--ot-text-light);
    margin: 0 0 0.5rem;
}

.ct-exam-name {
    display: inline-block;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ot-primary);
    background: rgba(61, 107, 122, 0.08);
    padding: 0.5rem 1.25rem;
    border-radius: var(--ot-radius);
    margin-bottom: 1.5rem;
}

.ct-score {
    margin: 1.25rem 0;
}

.ct-score-value {
    display: block;
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--ot-primary);
    line-height: 1;
}

.ct-score-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--ot-text-light);
    font-weight: 600;
}

.ct-details {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin: 1.5rem 0;
}

.ct-detail {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ct-detail-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--ot-text-light);
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.ct-detail-value {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--ot-text);
}

.ct-footer {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.ct-qr canvas,
.ct-qr img {
    border-radius: 6px;
}

.ct-id {
    font-size: 0.72rem;
    font-family: 'Courier New', monospace;
    color: var(--ot-text-light);
    word-break: break-all;
}

/* Actions */
.ct-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1.25rem;
}

/* Verification card */
.ct-verify {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius-lg);
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.ct-verify-head {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--ot-border);
}

.ct-verify-head i {
    font-size: 1.15rem;
    color: var(--ot-primary);
}

.ct-verify-head h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--ot-text);
}

.ct-verify-body {
    padding: 1.25rem;
}

.ct-verify-text {
    font-size: 0.88rem;
    color: var(--ot-text-light);
    margin: 0 0 0.85rem;
}

.ct-verify-url {
    display: flex;
    margin-bottom: 1rem;
}

.ct-verify-url input {
    flex: 1;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--ot-border);
    border-right: none;
    border-radius: var(--ot-radius) 0 0 var(--ot-radius);
    font-size: 0.82rem;
    font-family: 'Courier New', monospace;
    color: var(--ot-text);
    background: #f8fafb;
    outline: none;
    min-width: 0;
}

.ct-verify-url button {
    padding: 0.55rem 1rem;
    border: 1px solid var(--ot-primary);
    border-radius: 0 var(--ot-radius) var(--ot-radius) 0;
    background: #fff;
    color: var(--ot-primary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: background 0.2s, color 0.2s;
}

.ct-verify-url button:hover {
    background: var(--ot-primary);
    color: #fff;
}

.ct-verify-qr {
    text-align: center;
    padding: 0.75rem 0;
}

.ct-verify-qr canvas,
.ct-verify-qr img {
    border-radius: 8px;
}

/* Print */
@media print {
    .ct-actions,
    .ct-verify,
    .page-title,
    header, footer, .footer,
    .breadcrumbs { display: none !important; }

    .ct-cert {
        border-width: 3px;
        box-shadow: none;
        margin: 0;
        page-break-inside: avoid;
    }

    @page {
        size: A4 landscape;
        margin: 15mm;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .ct-cert {
        padding: 2rem 1.5rem;
    }

    .ct-title {
        font-size: 1.8rem;
        letter-spacing: 2px;
    }

    .ct-name {
        font-size: 1.6rem;
    }

    .ct-score-value {
        font-size: 2.4rem;
    }

    .ct-details {
        gap: 1.5rem;
    }

    .ct-actions {
        flex-direction: column;
    }

    .ct-actions .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .ct-cert {
        padding: 1.5rem 1rem;
        border-width: 2px;
    }

    .ct-title {
        font-size: 1.5rem;
    }

    .ct-name {
        font-size: 1.3rem;
    }

    .ct-score-value {
        font-size: 2rem;
    }

    .ct-details {
        flex-direction: column;
        gap: 0.5rem;
    }

    .ct-detail {
        flex-direction: row;
        gap: 0.5rem;
    }
}

/* ============================================================
   Quiz Result  (qr-*)
   ============================================================ */

/* --- Summary card --- */
.qr-summary {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius-lg);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
}

.qr-summary-top {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.qr-exam-info {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    flex: 1;
    min-width: 0;
}

.qr-exam-img {
    width: 64px;
    height: 64px;
    border-radius: var(--ot-radius);
    object-fit: cover;
    flex-shrink: 0;
}

.qr-exam-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--ot-radius);
    background: var(--ot-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.qr-exam-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ot-text);
    margin: 0 0 0.3rem;
}

.qr-exam-desc {
    font-size: 0.88rem;
    color: var(--ot-text-light);
    margin: 0;
    line-height: 1.45;
}

/* Score circle */
.qr-score {
    flex-shrink: 0;
}

.qr-score-circle {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: var(--ot-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-score-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
}

.qr-done-icon {
    font-size: 3rem;
    color: #2ecc71;
    flex-shrink: 0;
}

/* Meta row */
.qr-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.82rem;
    color: var(--ot-text-light);
}

.qr-meta i {
    margin-right: 0.3rem;
    color: var(--ot-primary);
}

/* --- Statistics strip --- */
.qr-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.qr-stat {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius);
    padding: 1rem 0.5rem;
    text-align: center;
}

.qr-stat-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--ot-text);
    line-height: 1;
    margin-bottom: 0.3rem;
}

.qr-stat-correct { color: #2ecc71; }
.qr-stat-wrong  { color: #e74c3c; }
.qr-stat-skip   { color: #95a5a6; }

.qr-stat-label {
    font-size: 0.75rem;
    color: var(--ot-text-light);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 600;
}

/* Info bar (no-score variant) */
.qr-info-bar {
    background: #f0f7fa;
    border: 1px solid #c8dfe6;
    border-radius: var(--ot-radius);
    padding: 0.85rem 1.1rem;
    font-size: 0.88rem;
    color: var(--ot-text);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.qr-info-bar i { color: var(--ot-primary); }

/* --- Generic card --- */
.qr-card {
    background: #fff;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius-lg);
    overflow: hidden;
    margin-bottom: 1.25rem;
}

.qr-card-head {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--ot-border);
}

.qr-card-head i {
    font-size: 1.15rem;
    color: var(--ot-primary);
}

.qr-card-head h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--ot-text);
}

.qr-card-body {
    padding: 1.25rem;
}

.qr-card-body--tight {
    padding: 0.75rem 1.25rem;
}

/* Extra-question rows */
.qr-extra-row {
    display: flex;
    gap: 0.75rem;
    padding: 0.65rem 0;
}

.qr-extra-row + .qr-extra-row {
    border-top: 1px solid var(--ot-border);
}

.qr-extra-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ot-text);
    flex: 0 0 40%;
}

.qr-extra-value {
    font-size: 0.85rem;
    color: var(--ot-text-light);
}

/* --- Detailed result items --- */
.qr-item {
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius);
    padding: 1rem 1.15rem;
    margin: 0.75rem 0;
    position: relative;
    border-left: 4px solid var(--ot-border);
}

.qr-item--correct { border-left-color: #2ecc71; }
.qr-item--wrong   { border-left-color: #e74c3c; }
.qr-item--skip    { border-left-color: #95a5a6; }

.qr-item-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
}

.qr-item-num {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--ot-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.qr-item-badge {
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.qr-item--correct .qr-item-badge { color: #2ecc71; }
.qr-item--wrong .qr-item-badge   { color: #e74c3c; }
.qr-item--skip .qr-item-badge    { color: #95a5a6; }

.qr-item-question {
    font-size: 0.9rem;
    color: var(--ot-text);
    line-height: 1.55;
    margin: 0 0 0.75rem;
}

/* Answer boxes */
.qr-answers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}

.qr-answer {
    background: #f8fafb;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius);
    padding: 0.7rem 0.85rem;
}

.qr-answer-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.qr-answer--user .qr-answer-label  { color: var(--ot-primary); }
.qr-answer--correct .qr-answer-label { color: #2ecc71; }

.qr-answer-text {
    font-size: 0.85rem;
    color: var(--ot-text);
    font-weight: 500;
    word-break: break-word;
}

/* Completion banner */
.qr-completion {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: #eafaf1;
    border: 1px solid #b8e6cc;
    border-radius: var(--ot-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}

.qr-completion > i {
    font-size: 1.5rem;
    color: #2ecc71;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.qr-completion strong {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--ot-text);
}

.qr-completion p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--ot-text-light);
}

/* Actions row */
.qr-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1rem;
}

/* Note */
.qr-note {
    font-size: 0.82rem;
    color: var(--ot-text-light);
    background: #f8fafb;
    border: 1px solid var(--ot-border);
    border-radius: var(--ot-radius);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.qr-note i { color: var(--ot-primary); }

/* --- Responsive --- */
@media (max-width: 768px) {
    .qr-summary-top {
        flex-direction: column;
        align-items: stretch;
    }

    .qr-score {
        align-self: center;
    }

    .qr-done-icon {
        align-self: center;
    }

    .qr-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .qr-answers {
        grid-template-columns: 1fr;
    }

    .qr-extra-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .qr-extra-label {
        flex: none;
    }

    .qr-actions {
        flex-direction: column;
    }

    .qr-actions .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .qr-summary {
        padding: 1.15rem;
    }

    .qr-exam-info {
        flex-direction: column;
    }

    .qr-score-circle {
        width: 72px;
        height: 72px;
    }

    .qr-score-value {
        font-size: 1.2rem;
    }

    .qr-stat-num {
        font-size: 1.3rem;
    }
}