/* Mrs. Switch Up — Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&family=DM+Sans:wght@400;500;600&display=swap');

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

:root {
  --gold: #C9922B;
  --gold-dark: #A67721;
  --gold-light: #E8C872;
  --gold-bg: #FDF4E3;
  --gold-glow: rgba(201, 146, 43, 0.15);
  --green: #2C5530;
  --green-dark: #1A3A1F;
  --green-light: #D4E8D0;
  --red-accent: #D4543A;
  --cream: #FFFBF5;
  --warm-white: #FFFDF9;
  --text-dark: #2D2319;
  --text-medium: #6B5B4D;
  --text-light: #9A8B7D;
  --border: #E8DDD0;
  --border-light: #F2ECE4;
  --shadow-sm: 0 1px 3px rgba(45, 35, 25, 0.06);
  --shadow-md: 0 4px 12px rgba(45, 35, 25, 0.08);
  --shadow-lg: 0 12px 40px rgba(45, 35, 25, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--text-dark);
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  line-height: 1.2;
}

a {
  color: var(--gold-dark);
  text-decoration: none;
}

a:hover {
  color: var(--gold);
}

img {
  max-width: 100%;
  height: auto;
}

/* ── Navigation ── */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 251, 245, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow 0.3s;
}

.site-nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.nav-brand-text {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-dark);
}

.nav-brand-text span {
  color: var(--gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-medium);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--text-dark);
  background: var(--gold-bg);
}

.nav-link.active {
  color: var(--gold-dark);
  background: var(--gold-bg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--gold);
  color: white;
}

.btn-primary:hover {
  background: var(--gold-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(201, 146, 43, 0.3);
}

.btn-secondary {
  background: var(--green);
  color: white;
}

.btn-secondary:hover {
  background: var(--green-dark);
  color: white;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-dark);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold-dark);
  background: var(--gold-bg);
}

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.825rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Layout ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page-content {
  padding-top: 5rem;
  min-height: 100vh;
}

/* ── Cards ── */
.card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all 0.3s;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.card-body {
  padding: 1.5rem;
}

/* ── Course Cards ── */
.course-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-card .card-thumbnail {
  height: 160px;
  background: linear-gradient(135deg, var(--gold-bg) 0%, var(--green-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.course-card .card-thumbnail .category-icon {
  font-size: 3rem;
  opacity: 0.6;
}

.course-card .level-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.625rem;
  border-radius: 100px;
  background: white;
  color: var(--text-medium);
}

.level-badge.beginner { color: var(--green); background: var(--green-light); }
.level-badge.intermediate { color: var(--gold-dark); background: var(--gold-bg); }
.level-badge.advanced { color: var(--red-accent); background: #FDEAE6; }

.course-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.course-card .card-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.course-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.3;
}

.course-card .card-desc {
  font-size: 0.875rem;
  color: var(--text-medium);
  line-height: 1.5;
  flex: 1;
}

.course-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
}

.course-card .card-teacher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-medium);
}

.course-card .card-teacher img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.course-card .card-price {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--green);
}

/* ── Course Grid ── */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.375rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text-dark);
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

.form-input::placeholder {
  color: var(--text-light);
}

/* ── Auth Pages ── */
.auth-container {
  max-width: 420px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.auth-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
}

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

.auth-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-header p {
  color: var(--text-medium);
  font-size: 0.95rem;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-medium);
}

.auth-footer a {
  color: var(--gold);
  font-weight: 600;
}

/* ── Alert ── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}

.alert.show {
  display: block;
}

.alert-error {
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

.alert-success {
  background: #F0FDF4;
  color: #166534;
  border: 1px solid #BBF7D0;
}

/* ── Progress ── */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border-light);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-light) 100%);
  border-radius: 100px;
  transition: width 0.5s ease;
}

/* ── Tags / Pills ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: var(--gold-bg);
  color: var(--gold-dark);
}

/* ── Lesson Sidebar ── */
.lesson-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 5rem);
}

.lesson-sidebar {
  background: white;
  border-right: 1px solid var(--border-light);
  overflow-y: auto;
  padding: 1.5rem 0;
}

.lesson-sidebar-header {
  padding: 0 1.25rem 1rem;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 0.5rem;
}

.lesson-sidebar-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.lesson-sidebar-header .progress-text {
  font-size: 0.8rem;
  color: var(--text-light);
}

.lesson-list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: var(--text-medium);
  font-size: 0.875rem;
  border-left: 3px solid transparent;
}

.lesson-list-item:hover {
  background: var(--gold-bg);
  color: var(--text-dark);
}

.lesson-list-item.active {
  background: var(--gold-bg);
  color: var(--gold-dark);
  font-weight: 500;
  border-left-color: var(--gold);
}

.lesson-list-item.completed {
  color: var(--green);
}

.lesson-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
  transition: all 0.2s;
}

.lesson-list-item.completed .lesson-check {
  background: var(--green);
  border-color: var(--green);
  color: white;
}

.lesson-list-item.active .lesson-check {
  border-color: var(--gold);
}

.lesson-content {
  padding: 2.5rem 3rem;
  max-width: 800px;
  overflow-y: auto;
}

/* ── Markdown Content ── */
.markdown-content h1 { font-size: 1.75rem; margin: 1.5rem 0 1rem; font-weight: 700; }
.markdown-content h2 { font-size: 1.35rem; margin: 1.5rem 0 0.75rem; font-weight: 600; color: var(--green); }
.markdown-content h3 { font-size: 1.1rem; margin: 1.25rem 0 0.5rem; font-weight: 600; }
.markdown-content p { margin: 0.75rem 0; line-height: 1.7; }
.markdown-content ul, .markdown-content ol { margin: 0.75rem 0; padding-left: 1.5rem; }
.markdown-content li { margin: 0.375rem 0; line-height: 1.6; }
.markdown-content strong { color: var(--text-dark); font-weight: 600; }
.markdown-content table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.markdown-content th, .markdown-content td { padding: 0.5rem 1rem; border: 1px solid var(--border); text-align: left; font-size: 0.9rem; }
.markdown-content th { background: var(--gold-bg); font-weight: 600; }
.markdown-content code { background: var(--gold-bg); padding: 0.125rem 0.375rem; border-radius: 4px; font-size: 0.85rem; }
.markdown-content blockquote { border-left: 3px solid var(--gold); padding: 0.75rem 1.25rem; margin: 1rem 0; background: var(--gold-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.markdown-content hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

/* ── Dashboard ── */
.dashboard-header {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 2rem;
}

.dashboard-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.dashboard-header p {
  color: var(--text-medium);
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.stat-card .stat-value {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.125rem;
}

/* ── Enrollment Card ── */
.enrollment-card {
  display: flex;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1rem;
  transition: all 0.3s;
}

.enrollment-card:hover {
  box-shadow: var(--shadow-md);
}

.enrollment-card .enroll-thumb {
  width: 200px;
  min-height: 140px;
  background: linear-gradient(135deg, var(--gold-bg) 0%, var(--green-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 2.5rem;
}

.enrollment-card .enroll-body {
  flex: 1;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.enrollment-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.enrollment-card .enroll-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  gap: 1rem;
}

.enrollment-card .enroll-progress {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.enrollment-card .enroll-progress .progress-text {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-medium);
  white-space: nowrap;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}

.empty-state .empty-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-medium);
  margin-bottom: 1.5rem;
}

/* ── Footer ── */
.site-footer {
  padding: 3rem 1.5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border-light);
  margin-top: 4rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.footer-brand span {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-dark);
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-light);
}

.footer-text a {
  color: var(--gold);
}

/* ── Hamburger Menu ── */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link, .nav-links .btn {
    width: 100%;
    text-align: center;
    padding: 0.75rem;
  }

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

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

  .lesson-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    max-height: 300px;
  }

  .lesson-content {
    padding: 1.5rem;
  }

  .enrollment-card {
    flex-direction: column;
  }

  .enrollment-card .enroll-thumb {
    width: 100%;
    min-height: 100px;
  }

  .auth-card {
    padding: 2rem 1.5rem;
  }

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

@media (max-width: 480px) {
  .dashboard-stats {
    grid-template-columns: 1fr;
  }
}

/* ── Loading ── */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2.5px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem;
  flex-direction: column;
  gap: 1rem;
}

.page-loading .loading-spinner {
  width: 32px;
  height: 32px;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.875rem 1.25rem;
  background: var(--green);
  color: white;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.error {
  background: var(--red-accent);
}

/* ══════════════════════════════════════════════
   Teacher Dashboard Styles
   ══════════════════════════════════════════════ */

/* ── Teacher Header ── */
.teacher-header {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.teacher-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.teacher-header p {
  color: var(--text-medium);
}

/* ── Teacher Tabs ── */
.teacher-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: 1.5rem;
}

.teacher-tab {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-medium);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.teacher-tab:hover {
  color: var(--text-dark);
}

.teacher-tab.active {
  color: var(--gold-dark);
  border-bottom-color: var(--gold);
  font-weight: 600;
}

/* ── Teacher Course Card ── */
.teacher-course-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 0.75rem;
  transition: all 0.2s;
}

.teacher-course-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.tcc-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.tcc-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.tcc-title-row h3 {
  font-size: 1.05rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tcc-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.825rem;
  color: var(--text-light);
}

.tcc-actions {
  flex-shrink: 0;
}

/* ── Status Badge ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.status-published {
  background: #ECFDF5;
  color: #065F46;
}

.status-draft {
  background: #FEF3C7;
  color: #92400E;
}

/* ── Earnings ── */
.earnings-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.earnings-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.earnings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.earnings-table th {
  background: var(--gold-bg);
  font-weight: 600;
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-medium);
}

.earnings-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-light);
}

.earnings-table tbody tr:hover {
  background: var(--warm-white);
}

.earnings-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Course Editor ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  color: var(--text-medium);
  padding: 1rem 0;
  text-decoration: none;
}

.back-link:hover {
  color: var(--gold-dark);
}

.editor-section {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.editor-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

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

.section-header h2 {
  margin-bottom: 0;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

/* ── Lesson Items ── */
.lesson-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  background: var(--warm-white);
  transition: all 0.2s;
}

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

.lesson-item-order {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.order-num {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-light);
  width: 24px;
  text-align: center;
}

.reorder-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.6rem;
  color: var(--text-light);
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s;
  line-height: 1;
}

.reorder-btn:hover:not(:disabled) {
  background: var(--gold-bg);
  color: var(--gold-dark);
}

.reorder-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.lesson-item-content {
  flex: 1;
  min-width: 0;
}

.lesson-item-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.lesson-item-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-light);
}

.lesson-item-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* ── Lesson Form ── */
.lesson-form-container {
  background: var(--gold-bg);
  border: 1px solid var(--gold-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1rem;
}

.lesson-form-container h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--gold-dark);
}

/* ── Select input ── */
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B5B4D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ── Responsive adjustments ── */
@media (max-width: 768px) {
  .teacher-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .tcc-main {
    flex-direction: column;
    align-items: flex-start;
  }

  .tcc-meta {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .lesson-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .lesson-item-order {
    flex-direction: row;
    gap: 0.5rem;
  }

  .lesson-item-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .earnings-summary {
    grid-template-columns: 1fr;
  }
}