/* ============================================
   LUMETRY ACADEMY — Main Stylesheet
   Dark premium photography theme
   ============================================ */

/* ----- CSS Variables ----- */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: #161616;
  --bg-card-hover: #1e1e1e;
  --bg-input: #1a1a1a;

  --border-color: #2a2a2a;
  --border-light: #333333;

  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --text-inverse: #0a0a0a;

  --accent: #e8720c;
  --accent-hover: #ff8c2a;
  --accent-light: rgba(232, 114, 12, 0.12);

  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ----- Utility ----- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.text-link { color: var(--accent); }
.text-link:hover { text-decoration: underline; }

/* ----- Navigation ----- */
.main-nav {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.5px;
}

.logo-icon {
  font-size: 1.4rem;
  color: var(--accent);
}

.nav-logo-img {
  height: 36px;
  width: 36px;
  object-fit: contain;
  border-radius: 4px;
}

.logo-text {
  color: var(--text-primary);
}

.logo-accent {
  color: var(--accent);
  margin-left: 2px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-greeting {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-light);
}

.btn-outline:hover {
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

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

.btn-danger {
  color: var(--error) !important;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.1) !important;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #0a0a0a 50%, #1a0a00 100%);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(232, 114, 12, 0.08) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0;
}

.hero-label {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 540px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ----- Sections ----- */
.section {
  padding: 4rem 0;
}

.section-dark {
  background: var(--bg-secondary);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.section-link {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
}

.section-link:hover {
  text-decoration: underline;
}

/* ----- Page Header ----- */
.page-header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.page-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
}

.page-subtitle {
  color: var(--text-secondary);
  margin-top: 0.25rem;
  font-size: 0.95rem;
}

/* ----- Course Cards ----- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.course-card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

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

.course-card-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--bg-tertiary), #1f1f1f);
}

.course-card-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.course-card-category {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.course-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.course-card-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
  flex: 1;
}

.course-card-meta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ----- Badges ----- */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-beginner {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.badge-intermediate {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.badge-advanced {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error);
}

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-draft {
  background: rgba(100, 100, 100, 0.2);
  color: var(--text-muted);
}

.status-published {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.status-archived {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

/* ----- Course Detail Hero ----- */
.course-hero {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.course-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
}

.course-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-primary) 0%, transparent 100%);
}

.course-hero-content {
  position: relative;
  z-index: 1;
  padding: 3rem 0;
}

.course-hero-category {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.course-hero-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.course-hero-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 1.25rem;
}

.course-hero-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.course-hero-actions {
  display: flex;
  gap: 1rem;
}

/* ----- Course Layout ----- */
.course-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2.5rem;
  align-items: start;
}

.course-section {
  margin-bottom: 2.5rem;
}

.course-section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.course-description {
  color: var(--text-secondary);
  line-height: 1.8;
}

.course-description h2,
.course-description h3,
.course-description h4 {
  color: var(--text-primary);
  margin: 1rem 0 0.5rem;
}

.course-description p {
  margin-bottom: 0.75rem;
}

.course-description ul,
.course-description ol {
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.course-description li {
  margin-bottom: 0.25rem;
}

.course-description a {
  color: var(--accent);
  text-decoration: underline;
}

.course-description blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 0.75rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.course-description strong {
  color: var(--text-primary);
}

/* ----- Module List ----- */
.module-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.module-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.module-item:hover {
  border-color: var(--border-light);
}

.module-item-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
}

.module-item-number {
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.module-item-info {
  flex: 1;
}

.module-item-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.module-item-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.module-item-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* Lesson list inside curriculum modules */
.module-lesson-list {
  padding: 0.25rem 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.module-lesson-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: background 0.15s, color 0.15s;
}

.module-lesson-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.module-lesson-number {
  width: 22px;
  height: 22px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.module-lesson-title {
  flex: 1;
}

/* ----- Sidebar ----- */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: sticky;
  top: 80px;
}

.sidebar-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.sidebar-details {
  list-style: none;
}

.sidebar-details li {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.sidebar-details li:last-child {
  border-bottom: none;
}

.detail-label {
  color: var(--text-muted);
}

.detail-value {
  font-weight: 600;
  text-transform: capitalize;
}

/* ----- Value Props ----- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
}

.value-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.value-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ----- Auth Pages ----- */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 64px);
  padding: 2rem 1rem;
}

.auth-container {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.auth-footer a {
  color: var(--accent);
  font-weight: 500;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ----- Forms ----- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  padding: 0.65rem 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-hint {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.form-layout {
  max-width: 700px;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.form-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.form-card-header {
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.form-card-header h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.form-card-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* ---- Profile Layout ---- */
.profile-layout {
  max-width: 700px;
  margin: 0 auto;
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  text-align: center;
}

.profile-stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
}

.profile-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.admin-form {
  display: flex;
  flex-direction: column;
}

/* ----- Stats ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* ----- Admin Table ----- */
.admin-section {
  margin-bottom: 2.5rem;
}

.admin-table-wrapper {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.admin-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

.action-btns {
  display: flex;
  gap: 0.5rem;
}

/* ----- Pagination ----- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
}

.pagination-btn {
  padding: 0.5rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all 0.2s;
}

.pagination-btn:hover,
.pagination-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.pagination-link {
  padding: 0.5rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.2s;
}

.pagination-link:hover,
.pagination-link.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ----- Admin Toolbar ----- */
.admin-toolbar {
  margin-bottom: 1.5rem;
}

.admin-search-form {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.admin-search-form .form-input {
  max-width: 300px;
}

.form-select-sm {
  max-width: 150px;
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
}

/* ----- Empty State ----- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.empty-state h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  margin-bottom: 1.5rem;
}

/* ----- Toast Notifications ----- */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem;
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 360px;
}

.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--error); }

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

/* ----- Footer ----- */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.footer-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ----- Page Header Actions ----- */
.page-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ----- Module Builder ----- */
.builder-layout {
  max-width: 860px;
}

.module-builder-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.builder-module {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.builder-module:hover {
  border-color: var(--border-light);
}

.builder-module.dragging {
  opacity: 0.5;
  box-shadow: var(--shadow-lg);
}

.builder-module-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.builder-drag-handle {
  cursor: grab;
  color: var(--text-muted);
  font-size: 1.1rem;
  padding: 0.25rem;
  user-select: none;
  flex-shrink: 0;
  line-height: 1;
}

.builder-drag-handle:active {
  cursor: grabbing;
}

.builder-drag-sm {
  font-size: 0.85rem;
}

.builder-module-number {
  width: 32px;
  height: 32px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.builder-module-info {
  flex: 1;
  min-width: 0;
}

.builder-module-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
}

.builder-module-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.builder-module-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.builder-lesson-count {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.builder-module-actions {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

/* ----- Lessons inside builder ----- */
.builder-lesson-list {
  padding: 0.75rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.builder-lesson {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, background 0.2s;
}

.builder-lesson:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.builder-lesson.dragging {
  opacity: 0.5;
}

.builder-lesson-number {
  width: 24px;
  height: 24px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.builder-lesson-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.builder-lesson-title {
  font-size: 0.85rem;
  font-weight: 500;
}

.builder-lesson-subtitle {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.builder-lesson-actions {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.builder-add-lesson-btn {
  margin-top: 0.35rem;
  align-self: flex-start;
}

/* ----- Lesson Editor Layout ----- */
.editor-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  align-items: start;
}

.editor-main {
  min-width: 0;
}

.editor-sidebar .sidebar-card {
  margin-bottom: 1rem;
}

.editor-sidebar .sidebar-card + .sidebar-card {
  position: static;
}

.form-textarea-lg {
  min-height: 280px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ----- Sidebar Settings ----- */
.sidebar-setting {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-setting:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
}

.toggle-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ----- Placeholder Zone ----- */
.placeholder-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ----- Upload Zone ----- */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
  overflow: hidden;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: rgba(232, 114, 12, 0.04);
}

.upload-zone-active {
  border-color: var(--accent) !important;
  background: rgba(232, 114, 12, 0.08) !important;
}

.upload-zone-sm {
  margin-top: 0.75rem;
}

.upload-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  pointer-events: none;
}

.upload-prompt {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
}

.upload-zone-sm .upload-prompt {
  padding: 1.25rem 1rem;
}

.upload-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.upload-zone-sm .upload-icon {
  font-size: 1.4rem;
}

.upload-prompt p {
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.upload-prompt small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Upload Preview (cover images) */
.upload-preview {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-tertiary);
}

.upload-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.upload-remove {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 30px;
  height: 30px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.upload-remove:hover {
  background: var(--error);
}

/* Upload Progress */
.upload-progress {
  padding: 2.5rem;
  text-align: center;
  color: var(--text-secondary);
}

.upload-progress p {
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.upload-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

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

/* ----- Gallery Editor ----- */
.gallery-editor {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.gallery-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-item-uploading {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  padding: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-caption-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  color: #fff;
  font-size: 0.7rem;
  font-family: var(--font);
}

.gallery-caption-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.gallery-remove-btn {
  width: 24px;
  height: 24px;
  background: rgba(239, 68, 68, 0.8);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.gallery-remove-btn:hover {
  background: var(--error);
}

/* ----- Media Preview / Gallery ----- */
.media-preview {
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

.media-badge {
  color: var(--success);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.gallery-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.5rem;
}

.gallery-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-tertiary);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.resource-list {
  list-style: none;
}

.resource-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.resource-list li:last-child {
  border-bottom: none;
}

.resource-list a {
  color: var(--accent);
  font-size: 0.85rem;
}

.resource-list a:hover {
  text-decoration: underline;
}

/* ----- Modal ----- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  box-sizing: border-box;
}

.modal .form-input,
.modal .form-select,
.modal .form-textarea {
  width: 100%;
  box-sizing: border-box;
}

.modal .form-row {
  min-width: 0;
}

.modal .form-group {
  min-width: 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal .form-group {
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ============================================
   BLOCK EDITOR
   ============================================ */

/* Title Area */
.block-title-area {
  margin-bottom: 2rem;
}

.block-title-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1.75rem;
  font-weight: 800;
  padding: 0.25rem 0;
  outline: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

.block-title-input:focus {
  border-bottom-color: var(--accent);
}

.block-title-input::placeholder {
  color: var(--text-muted);
}

.block-subtitle-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.25rem 0;
  margin-top: 0.5rem;
  outline: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.block-subtitle-input:focus {
  border-bottom-color: var(--border-light);
}

.block-subtitle-input::placeholder {
  color: var(--text-muted);
}

/* Block Canvas */
.block-canvas {
  min-height: 200px;
}

.be-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
}

.be-empty p {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: var(--text-secondary);
}

.be-empty small {
  font-size: 0.8rem;
}

/* Insert Point */
.be-insert-point {
  position: relative;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.be-insert-btn {
  width: 24px;
  height: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
  z-index: 2;
}

.be-insert-point:hover .be-insert-btn {
  opacity: 1;
}

.be-insert-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Block */
.be-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 0;
  transition: border-color 0.2s, box-shadow 0.2s;
  position: relative;
}

.be-block:hover {
  border-color: var(--border-light);
}

.be-block.dragging {
  opacity: 0.5;
  box-shadow: var(--shadow-lg);
}

/* Block Toolbar */
.be-block-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
}

.be-block-drag {
  cursor: grab;
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0.15rem 0.25rem;
  user-select: none;
  line-height: 1;
}

.be-block-drag:active {
  cursor: grabbing;
}

.be-block-type-label {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex: 1;
}

.be-block-actions {
  display: flex;
  gap: 0.15rem;
  opacity: 0;
  transition: opacity 0.15s;
}

.be-block:hover .be-block-actions {
  opacity: 1;
}

.be-action-btn {
  width: 26px;
  height: 26px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

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

.be-action-delete:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error);
  border-color: rgba(239, 68, 68, 0.3);
}

/* Block Content */
.be-block-content {
  padding: 1rem;
}

/* Heading Block */
.be-heading-editor {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.be-heading-level {
  width: 60px;
  padding: 0.4rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.be-heading-input {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1.25rem;
  font-weight: 700;
  padding: 0.35rem 0;
  outline: none;
  transition: border-color 0.2s;
}

.be-heading-input:focus {
  border-bottom-color: var(--accent);
}

.be-heading-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

/* Quill Rich Text Editor — Dark Theme Overrides */
.be-quill-wrapper {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

.be-quill-wrapper:focus-within {
  border-color: var(--accent);
}

.be-quill-wrapper .ql-toolbar.ql-snow {
  background: var(--bg-darker);
  border: none;
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem;
}

.be-quill-wrapper .ql-toolbar .ql-stroke {
  stroke: var(--text-secondary);
}

.be-quill-wrapper .ql-toolbar .ql-fill {
  fill: var(--text-secondary);
}

.be-quill-wrapper .ql-toolbar .ql-picker-label {
  color: var(--text-secondary);
}

.be-quill-wrapper .ql-toolbar button:hover .ql-stroke,
.be-quill-wrapper .ql-toolbar .ql-picker-label:hover .ql-stroke {
  stroke: var(--accent);
}

.be-quill-wrapper .ql-toolbar button:hover .ql-fill,
.be-quill-wrapper .ql-toolbar .ql-picker-label:hover .ql-fill {
  fill: var(--accent);
}

.be-quill-wrapper .ql-toolbar button.ql-active .ql-stroke {
  stroke: var(--accent);
}

.be-quill-wrapper .ql-toolbar button.ql-active .ql-fill {
  fill: var(--accent);
}

.be-quill-wrapper .ql-toolbar .ql-picker-options {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.be-quill-wrapper .ql-toolbar .ql-picker-item {
  color: var(--text-secondary);
}

.be-quill-wrapper .ql-toolbar .ql-picker-item:hover {
  color: var(--accent);
}

.be-quill-wrapper .ql-container.ql-snow {
  border: none;
  font-family: var(--font);
  font-size: 0.95rem;
}

.be-quill-wrapper .ql-editor {
  background: var(--bg-input);
  color: var(--text-primary);
  min-height: 120px;
  padding: 0.75rem 1rem;
  line-height: 1.7;
}

.be-quill-wrapper .ql-editor.ql-blank::before {
  color: var(--text-muted);
  font-style: normal;
}

.be-quill-wrapper .ql-editor h2,
.be-quill-wrapper .ql-editor h3,
.be-quill-wrapper .ql-editor h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.be-quill-wrapper .ql-editor p {
  margin-bottom: 0.5rem;
}

.be-quill-wrapper .ql-editor a {
  color: var(--accent);
}

.be-quill-wrapper .ql-editor blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-secondary);
  margin: 0.75rem 0;
}

.be-quill-wrapper .ql-editor ul,
.be-quill-wrapper .ql-editor ol {
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.be-quill-wrapper .ql-snow .ql-tooltip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
}

.be-quill-wrapper .ql-snow .ql-tooltip input[type="text"] {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
}

.be-quill-wrapper .ql-snow .ql-tooltip a.ql-action,
.be-quill-wrapper .ql-snow .ql-tooltip a.ql-remove {
  color: var(--accent);
}

/* Smaller toolbar for callout blocks */
.be-quill-callout .ql-editor {
  min-height: 60px;
}

/* Make Quill not interfere with drag-and-drop */
.be-block[draggable="true"] .ql-editor {
  cursor: text;
}

/* Image Block */
.be-image-upload .upload-zone {
  cursor: pointer;
}

.be-image-preview {
  text-align: center;
}

.be-image-preview img {
  max-height: 400px;
  border-radius: var(--radius-sm);
  margin: 0 auto 0.75rem;
  object-fit: contain;
}

.be-image-caption {
  width: 100%;
  max-width: 500px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-style: italic;
  padding: 0.45rem 0.7rem;
  outline: none;
  margin: 0 auto 0.5rem;
  display: block;
  text-align: center;
  transition: border-color 0.2s;
}

.be-image-caption:focus {
  border-color: var(--accent);
}

.be-image-caption::placeholder {
  color: var(--text-muted);
}

.be-image-remove {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.be-image-remove:hover {
  border-color: var(--error);
  color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

/* Video Block */
.be-video-placeholder {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-sm);
}

.be-video-placeholder span {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.be-video-preview {
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

.be-video-badge {
  color: var(--success);
  font-weight: 600;
  font-size: 0.85rem;
}

/* Callout Block */
.be-callout-editor {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.be-callout-style {
  width: fit-content;
  padding: 0.4rem 0.6rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  cursor: pointer;
}

.be-callout-text {
  width: 100%;
  min-height: 70px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 0.75rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.be-callout-text:focus {
  border-color: var(--accent);
}

/* Divider Block */
.be-divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 0.5rem 0;
}

/* Spacer Block */
.be-spacer-editor {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.be-spacer-input {
  width: 60px;
  padding: 0.3rem 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  text-align: center;
}

/* Block Picker */
.be-picker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 0.75rem;
  animation: pickerFadeIn 0.15s ease;
}

.be-picker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
}

.be-picker-grid button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.65rem 0.5rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.be-picker-grid button span {
  font-size: 1rem;
}

.be-picker-grid button:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-color);
  color: var(--text-primary);
}

@keyframes pickerFadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Add Block End */
.block-add-end {
  text-align: center;
  padding: 1.5rem 0;
}

.block-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: transparent;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.block-add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(232, 114, 12, 0.04);
}

.block-add-icon {
  font-size: 1rem;
  font-weight: 700;
}

/* Sidebar Block Toolbox */
.block-toolbox {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.toolbox-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.55rem 0.75rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
}

.toolbox-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.toolbox-icon {
  width: 24px;
  text-align: center;
  font-size: 0.9rem;
}

/* ============================================
   STUDENT LESSON PAGE
   ============================================ */

/* Lesson Header */
.lesson-header {
  padding: 2.5rem 0 0;
  border-bottom: 1px solid var(--border-color);
}

.lesson-breadcrumb {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.lesson-breadcrumb a {
  color: var(--accent);
}

.lesson-breadcrumb a:hover {
  text-decoration: underline;
}

.lesson-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.lesson-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

.lesson-header-right {
  flex-shrink: 0;
}

/* ---- Top Navigation Bar ---- */
.lesson-nav-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border-color);
}

.lesson-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
  max-width: 45%;
  overflow: hidden;
}

.lesson-nav-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.lesson-nav-btn-next {
  border-color: rgba(232, 114, 12, 0.25);
  color: var(--accent);
  font-weight: 600;
}

.lesson-nav-btn-next:hover {
  border-color: var(--accent);
  background: rgba(232, 114, 12, 0.06);
  color: var(--accent);
}

.lesson-nav-btn-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- Lesson Layout: Sidebar + Main ---- */
.lesson-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.lesson-layout.sidebar-collapsed {
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

/* ---- Lesson Sidebar ---- */
.lesson-sidebar {
  position: sticky;
  top: 1.5rem;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0;
  transition: width 0.25s ease, min-width 0.25s ease;

  /* Thin scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* When collapsed: hide inner content, show only the reopen button */
.lesson-sidebar.collapsed .lesson-sidebar-inner {
  display: none;
}

.lesson-sidebar.collapsed {
  background: none;
  border: none;
  overflow: visible;
}

.lesson-sidebar::-webkit-scrollbar {
  width: 4px;
}

.lesson-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 100px;
}

.lesson-sidebar-inner {
  display: flex;
  flex-direction: column;
}

.lesson-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--border-color);
}

.lesson-sidebar-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: 0.5rem;
}

.lesson-sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.15rem;
}

.lesson-sidebar-progress {
  padding: 0.75rem 1.15rem;
  border-bottom: 1px solid var(--border-color);
}

/* Module accordion */
.sidebar-module {
  border-bottom: 1px solid var(--border-color);
}

.sidebar-module:last-child {
  border-bottom: none;
}

.sidebar-module-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.15rem;
  cursor: pointer;
  transition: background 0.15s;
  user-select: none;
}

.sidebar-module-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-module-number {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sidebar-module-active .sidebar-module-number {
  background: rgba(232, 114, 12, 0.15);
  border-color: rgba(232, 114, 12, 0.3);
  color: var(--accent);
}

.sidebar-module-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  line-height: 1.3;
}

.sidebar-module-chevron {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: transform 0.2s;
  flex-shrink: 0;
}

/* Lesson list inside modules */
.sidebar-module-lessons {
  display: none;
  padding: 0 0 0.35rem;
}

.sidebar-module-lessons.open {
  display: block;
}

.sidebar-lesson-link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 1.15rem 0.45rem 1.6rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.35;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}

.sidebar-lesson-link:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.sidebar-lesson-current {
  background: rgba(232, 114, 12, 0.06);
  border-left-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-lesson-current:hover {
  color: var(--accent);
}

.sidebar-lesson-done .sidebar-lesson-indicator {
  color: var(--success);
}

.sidebar-lesson-done .sidebar-lesson-name {
  color: var(--text-muted);
}

.sidebar-lesson-indicator {
  width: 18px;
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sidebar-lesson-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-empty {
  padding: 0.5rem 1.6rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-style: italic;
}

/* Mobile sidebar open button */
/* Mobile: fixed "Curriculum" button at bottom-left */
.lesson-sidebar-open-btn {
  display: none; /* Shown on mobile */
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 90;
  padding: 0.6rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.2s;
}

.lesson-sidebar-open-btn:hover {
  border-color: var(--accent);
}

/* Desktop: inline "Show Outline" button — lives inside sidebar, hidden by default */
.lesson-sidebar-reopen {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  color: var(--text-muted);
  white-space: nowrap;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.2s;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.5px;
}

.lesson-sidebar-reopen:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Show reopen button when sidebar is collapsed */
.lesson-sidebar.collapsed .lesson-sidebar-reopen {
  display: block;
}

/* ---- Lesson Main Content ---- */
.lesson-main {
  min-width: 0; /* Prevent grid blowout */
}

.lesson-content {
  max-width: 800px;
  padding: 2.5rem 0 4rem;
  transition: max-width 0.3s ease;
}

.sidebar-collapsed .lesson-content {
  max-width: 100%;
}

.lesson-block {
  margin-bottom: 2rem;
}

/* Rendered heading */
.lesson-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.lesson-block h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.lesson-block h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Rendered text */
.lesson-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
}

.lesson-text p {
  margin-bottom: 1rem;
}

.lesson-text a {
  color: var(--accent);
  text-decoration: underline;
}

.lesson-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.lesson-text ul, .lesson-text ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.lesson-text li {
  margin-bottom: 0.4rem;
}

.lesson-text blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.lesson-text h2,
.lesson-text h3,
.lesson-text h4 {
  color: var(--text-primary);
  margin: 1.5rem 0 0.5rem;
}

.lesson-text h2 { font-size: 1.5rem; }
.lesson-text h3 { font-size: 1.25rem; }
.lesson-text h4 { font-size: 1.1rem; }

/* Rendered image */
.lesson-image {
  text-align: center;
}

.lesson-image img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 0 auto;
}

.lesson-image figcaption {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-style: italic;
  margin-top: 0.75rem;
}

/* Rendered callout */
.lesson-callout {
  border-radius: var(--radius-sm);
  padding: 1.15rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.lesson-callout-tip {
  background: rgba(34, 197, 94, 0.08);
  border-left: 3px solid var(--success);
  color: #c5e8d0;
}

.lesson-callout-info {
  background: rgba(59, 130, 246, 0.08);
  border-left: 3px solid var(--info);
  color: #b8d0f5;
}

.lesson-callout-warning {
  background: rgba(245, 158, 11, 0.08);
  border-left: 3px solid var(--warning);
  color: #f0dbb8;
}

.lesson-callout-note {
  background: rgba(160, 160, 160, 0.08);
  border-left: 3px solid var(--text-muted);
  color: var(--text-secondary);
}

.lesson-callout-icon {
  margin-right: 0.4rem;
}

/* Rendered divider */
.lesson-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

/* Rendered spacer */
.lesson-spacer {
  display: block;
}

/* ---- Bottom Lesson Navigation ---- */
.lesson-nav-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  max-width: 800px;
}

.lesson-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color 0.2s;
}

.lesson-nav-link:hover {
  color: var(--text-primary);
}

.lesson-nav-link strong {
  color: var(--text-primary);
  font-size: 0.9rem;
}

.lesson-nav-next {
  text-align: right;
}

/* ============================================
   PROGRESS BARS & COMPLETION
   ============================================ */

.progress-bar-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.progress-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.4s ease;
  min-width: 0;
}

.progress-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.progress-bar-hero {
  margin-top: 0.25rem;
}

.hero-progress {
  margin: 1.25rem 0 0.5rem;
  max-width: 400px;
}

/* ============================================
   STUDENT DASHBOARD — ENROLLED COURSES
   ============================================ */

.section-header {
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.enrolled-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.enrolled-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  color: var(--text-primary);
  text-decoration: none;
}

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

.enrolled-card-image {
  position: relative;
  aspect-ratio: 16 / 8;
  overflow: hidden;
  background: var(--bg-tertiary);
}

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

.enrolled-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.3rem 0.65rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
}

.enrolled-badge-complete {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.enrolled-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.enrolled-card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
}

.enrolled-card-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.enrolled-card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: auto;
}

.enrolled-resume {
  color: var(--accent);
  font-weight: 500;
}

/* ============================================
   LESSON PAGE — COMPLETION
   ============================================ */

.lesson-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
}

.lesson-header-progress {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  flex-shrink: 0;
}

.lesson-counter {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
}

.lesson-status-complete {
  color: var(--success);
  font-size: 0.8rem;
  font-weight: 600;
}

.lesson-complete-section {
  text-align: center;
  padding: 2.5rem 0 1rem;
  border-top: 1px solid var(--border-color);
  margin-top: 2rem;
}

.btn-complete-done {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 0.65rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-complete-done:hover {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.2);
}

/* Curriculum — completed lesson check */
.module-lesson-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.lesson-completed .module-lesson-check {
  background: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.4);
  color: var(--success);
}

.lesson-completed .module-lesson-title {
  color: var(--text-muted);
}

/* Module complete checkmark */
.module-check {
  color: var(--success);
  font-weight: 700;
}

/* ============================================
   VIDEO UPLOAD & PLAYER
   ============================================ */

/* Admin: Video block dropzone */
.be-video-upload {
  width: 100%;
}

.be-video-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.be-video-dropzone:hover,
.be-video-dropzone.upload-zone-active {
  border-color: var(--accent);
  background: rgba(232, 114, 12, 0.04);
}

.be-video-dropzone-inner {
  pointer-events: none;
}

.be-video-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.be-video-dropzone p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.be-video-dropzone small {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.be-video-dropzone .upload-file-input {
  display: none;
}

/* Admin: Video uploading progress */
.be-video-uploading {
  padding: 2rem;
  text-align: center;
}

.be-video-progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.be-video-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  width: 0%;
  transition: width 0.3s ease;
}

.be-video-upload-status {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.be-video-upload-filename {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Admin: Video preview (after upload) */
.be-video-preview {
  width: 100%;
}

.be-video-preview mux-player {
  display: block;
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
}

.be-video-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.be-video-meta .be-video-title-input {
  flex: 1;
  font-size: 0.8rem;
  padding: 0.35rem 0.6rem;
}

.be-video-duration {
  color: var(--text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

/* Student: Video in lesson */
.lesson-video {
  margin: 1.5rem 0;
}

.lesson-video mux-player {
  display: block;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
}

.lesson-video-title {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  font-style: italic;
}

/* ---- File Block (Admin Editor) ---- */
.be-file-preview {
  padding: 1rem;
}

.be-file-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-tertiary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.be-file-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.be-file-details {
  flex: 1;
  min-width: 0;
}

.be-file-name {
  display: block;
  color: var(--text-primary);
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.be-file-meta {
  display: block;
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-top: 0.1rem;
}

/* ---- File Block (Student Lesson) ---- */
.lesson-file-download {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.lesson-file-download:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(232, 114, 12, 0.1);
}

.lesson-file-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

.lesson-file-info {
  flex: 1;
  min-width: 0;
}

.lesson-file-info strong {
  display: block;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-file-info span {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 0.15rem;
}

.lesson-file-action {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ============================================
   QUIZ BUILDER (ADMIN)
   ============================================ */

.form-card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.form-card-header-row .form-card-title {
  margin-bottom: 0;
}

.quiz-questions-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-question-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

.quiz-question-card:hover {
  border-color: var(--border-light);
}

.quiz-question-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
}

.quiz-question-drag {
  cursor: grab;
  color: var(--text-muted);
  font-size: 0.9rem;
  user-select: none;
}

.quiz-question-drag:active {
  cursor: grabbing;
}

.quiz-question-number {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.quiz-question-type-badge {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  background: rgba(232, 114, 12, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 100px;
}

.quiz-question-points {
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-left: auto;
}

.quiz-question-actions {
  display: flex;
  gap: 0.15rem;
  opacity: 0;
  transition: opacity 0.15s;
}

.quiz-question-card:hover .quiz-question-actions {
  opacity: 1;
}

.quiz-question-body {
  padding: 0.85rem;
}

.quiz-question-text {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.quiz-answer-preview {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.quiz-option-preview {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0.15rem 0;
}

.quiz-option-preview.correct {
  color: var(--success);
  font-weight: 600;
}

.quiz-quick-add {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* Question modal options editor */
.quiz-options-editor {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.quiz-option-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.quiz-option-row .option-correct {
  flex-shrink: 0;
  accent-color: var(--accent);
}

.quiz-option-row .option-text {
  flex: 1;
}

.quiz-option-row .remove-option-btn {
  flex-shrink: 0;
  padding: 0.25rem 0.5rem;
}

/* Quiz type badges */
.quiz-type-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.quiz-type-pop_quiz {
  background: rgba(59, 130, 246, 0.12);
  color: var(--info);
}

.quiz-type-module_quiz {
  background: rgba(232, 114, 12, 0.12);
  color: var(--accent);
}

.quiz-type-final_test {
  background: rgba(168, 85, 247, 0.12);
  color: #c084fc;
}

/* ============================================
   QUIZ TAKING (STUDENT)
   ============================================ */

.quiz-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}

.quiz-main {
  min-width: 0;
}

.quiz-sidebar {
  position: sticky;
  top: 1.5rem;
}

.quiz-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Best result banner */
.quiz-best-result {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
}

.quiz-result-pass {
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.quiz-result-fail {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.quiz-best-score {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quiz-best-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quiz-best-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.quiz-best-status {
  font-weight: 600;
  font-size: 0.9rem;
  display: block;
}

.quiz-result-pass .quiz-best-status { color: var(--success); }
.quiz-result-fail .quiz-best-status { color: var(--error); }

.quiz-best-detail {
  color: var(--text-muted);
  font-size: 0.8rem;
  display: block;
}

/* Start card */
.quiz-start-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
}

.quiz-start-card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.quiz-start-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* Question cards */
.quiz-questions {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.quiz-question {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.quiz-question-head {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.quiz-q-num {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(232, 114, 12, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.quiz-q-text {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.quiz-q-pts {
  color: var(--text-muted);
  font-size: 0.7rem;
  flex-shrink: 0;
}

.quiz-q-answers {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-left: 0.25rem;
}

.quiz-answer-option {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.quiz-answer-option:hover {
  border-color: var(--border-light);
  background: rgba(255, 255, 255, 0.03);
}

.quiz-answer-option input {
  accent-color: var(--accent);
}

.quiz-answer-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.quiz-answer-option:has(input:checked) {
  border-color: var(--accent);
  background: rgba(232, 114, 12, 0.05);
}

.quiz-answer-option:has(input:checked) .quiz-answer-text {
  color: var(--text-primary);
}

.short-answer-input {
  max-width: 500px;
}

.quiz-submit-area {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  margin-top: 1.5rem;
}

/* Results */
.quiz-results-hero {
  text-align: center;
  padding: 2.5rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

.quiz-results-score-value {
  font-size: 3rem;
  font-weight: 800;
  display: block;
}

.quiz-results-score-label {
  font-size: 1.1rem;
  font-weight: 600;
  display: block;
  margin-top: 0.25rem;
}

.quiz-result-pass .quiz-results-score-label { color: var(--success); }
.quiz-result-fail .quiz-results-score-label { color: var(--error); }

.quiz-results-detail {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.quiz-results-breakdown {
  margin-bottom: 2rem;
}

.quiz-results-breakdown h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.quiz-result-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.quiz-result-head {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.quiz-result-indicator {
  font-weight: 700;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.result-correct .quiz-result-indicator { color: var(--success); }
.result-incorrect .quiz-result-indicator { color: var(--error); }

.quiz-result-num {
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.quiz-result-text {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.quiz-result-pts {
  color: var(--text-muted);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.quiz-result-answers {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-left: 1.5rem;
  font-size: 0.82rem;
}

.quiz-result-option {
  padding: 0.15rem 0;
  color: var(--text-muted);
}

.quiz-result-option small {
  color: var(--success);
  font-size: 0.7rem;
}

.result-opt-correct {
  color: var(--success);
  font-weight: 600;
}

.result-opt-wrong {
  color: var(--error);
  text-decoration: line-through;
}

.result-opt-missed {
  color: var(--success);
  opacity: 0.6;
}

.quiz-result-explanation {
  padding: 0.65rem 0.85rem;
  margin-top: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.quiz-results-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 1rem 0;
}

/* Past attempts list */
.quiz-attempts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.quiz-attempt-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--border-color);
}

.quiz-attempt-item:last-child {
  border-bottom: none;
}

.attempt-num {
  color: var(--text-muted);
  font-weight: 500;
  width: 24px;
}

.attempt-score {
  flex: 1;
  font-weight: 600;
  color: var(--text-primary);
}

.attempt-pass .attempt-status { color: var(--success); }
.attempt-fail .attempt-status { color: var(--error); }

/* ============================================
   PROFILE PAGE
   ============================================ */

.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 900px;
}

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.profile-card:last-child {
  grid-column: 1 / -1;
}

.profile-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.profile-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.profile-info-row:last-child {
  border-bottom: none;
}

.profile-info-label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-primary);
}

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

.form-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* ============================================
   COURSE SEARCH & FILTERS
   ============================================ */

.courses-toolbar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  align-items: center;
}

.courses-toolbar .form-input,
.courses-toolbar .form-select-sm {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
}

.courses-toolbar .search-input {
  flex: 1;
  min-width: 200px;
}

.courses-toolbar .form-select-sm {
  min-width: 140px;
}

.courses-empty-filter {
  text-align: center;
  padding: 2rem 0;
  color: var(--text-muted);
}

.courses-empty-filter a {
  color: var(--accent);
}

/* ============================================
   ADMIN MEDIA MANAGER
   ============================================ */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.media-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition: border-color 0.2s;
}

.media-item:hover {
  border-color: var(--accent);
}

.media-item-preview {
  height: 150px;
  background: var(--bg-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.media-item-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-item-preview .media-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.media-item-body {
  padding: 0.75rem;
}

.media-item-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.media-item-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
}

.media-item-actions {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.media-item:hover .media-item-actions {
  opacity: 1;
}

.media-filter-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.media-filter-bar .form-select-sm {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  min-width: 120px;
}

/* ============================================
   ADMIN STUDENT PROGRESS
   ============================================ */

.progress-overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 1000px;
}

/* Enrollment cards on student detail page */
.enrollment-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.enrollment-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-darker);
}

.enrollment-card-info {
  flex: 1;
  min-width: 0;
}

.enrollment-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.enrollment-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.enrollment-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.enrollment-card-actions {
  flex-shrink: 0;
}

.progress-bar-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.progress-bar-fill.progress-bar-complete {
  background: var(--success);
}

.progress-bar-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.progress-badge {
  background: var(--bg-darker);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Module-by-module progress */
.module-progress-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.module-progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.module-progress-info {
  flex: 1;
  min-width: 0;
}

.module-progress-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.module-progress-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.module-progress-summary {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.75rem;
}

.module-progress-pct {
  font-weight: 600;
  color: var(--text-primary);
}

/* Individual lesson progress rows */
.lesson-progress-list {
  padding: 0;
}

.lesson-progress-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.lesson-progress-row:last-child {
  border-bottom: none;
}

.lesson-progress-done {
  background: rgba(34, 197, 94, 0.04);
}

.lesson-progress-check {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.lesson-progress-done .lesson-progress-check {
  color: var(--success);
  font-weight: 700;
}

.lesson-progress-title {
  flex: 1;
  color: var(--text-primary);
}

.lesson-progress-done .lesson-progress-title {
  color: var(--text-muted);
}

.lesson-progress-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ============================================
   ADMIN DASHBOARD GRID & ACTIVITY
   ============================================ */

.admin-dashboard-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.activity-list {
  display: flex;
  flex-direction: column;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-icon {
  font-size: 1rem;
  flex-shrink: 0;
  padding-top: 0.1rem;
}

.activity-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.activity-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.activity-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================
   LESSON LOCK BADGE
   ============================================ */

.lesson-locked {
  opacity: 0.5;
  pointer-events: none;
}

.lesson-lock-icon {
  margin-left: 0.5rem;
  font-size: 0.75rem;
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* Mobile menu — shown when .nav-mobile-open is on nav */
  .main-nav.nav-mobile-open .nav-links,
  .main-nav.nav-mobile-open .nav-actions {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding: 0.5rem 0;
    order: 10;
  }

  .main-nav.nav-mobile-open .nav-link,
  .main-nav.nav-mobile-open .nav-greeting {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-color);
  }

  .main-nav.nav-mobile-open .nav-actions {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 0.75rem;
  }

  .hero {
    min-height: 400px;
  }

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

  .course-grid {
    grid-template-columns: 1fr;
  }

  .course-layout {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
  }

  .auth-card {
    padding: 1.75rem;
  }

  .editor-layout {
    grid-template-columns: 1fr;
  }

  /* Lesson page: sidebar becomes a slide-over panel on mobile */
  .lesson-layout {
    grid-template-columns: 1fr;
  }

  .lesson-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    max-height: 100vh;
    z-index: 200;
    border-radius: 0;
    border: none;
    border-right: 1px solid var(--border-color);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .lesson-sidebar.open {
    transform: translateX(0);
  }

  .lesson-sidebar.collapsed {
    background: var(--bg-card);
    border: none;
    border-right: 1px solid var(--border-color);
  }

  .lesson-sidebar.collapsed .lesson-sidebar-inner {
    display: flex;
  }

  .lesson-sidebar.collapsed .lesson-sidebar-reopen {
    display: none;
  }

  .lesson-sidebar-open-btn {
    display: block;
  }

  .builder-module-header {
    flex-wrap: wrap;
  }

  .builder-module-meta {
    order: 5;
    width: 100%;
    margin-top: 0.25rem;
  }

  .builder-module-actions {
    order: 4;
  }

  /* Quiz responsive */
  .quiz-layout {
    grid-template-columns: 1fr;
  }

  .quiz-sidebar {
    position: static;
    order: -1;
  }

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

  .quiz-question-actions {
    opacity: 1;
  }

  .profile-grid {
    grid-template-columns: 1fr;
  }

  .profile-card:last-child {
    grid-column: auto;
  }

  .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .courses-toolbar {
    flex-direction: column;
  }

  .courses-toolbar .search-input {
    width: 100%;
  }

  .media-item-actions {
    opacity: 1;
  }

  .admin-dashboard-grid {
    grid-template-columns: 1fr;
  }

  .enrollment-card {
    flex-direction: column;
    align-items: stretch;
  }

  .module-progress-header {
    flex-direction: column;
    align-items: stretch;
  }

  .lesson-progress-row {
    flex-wrap: wrap;
  }

  .lesson-progress-date {
    width: 100%;
    padding-left: calc(20px + 0.75rem);
  }
}