/**
 * Live Course Manager - Base Styles
 * Typography: Inter (Google Fonts) — used by edX, GitHub, Linear, Vercel
 * Typography scale designed for content-heavy EdTech (60,000+ MCQs)
 */

/* ============================================
   HIDE PAGE TITLE ON SPECIFIC LCM PAGES
   This only affects pages with the body class 
   'lcm-hide-page-title' added via hook_preprocess_html
   ============================================ */
body.lcm-hide-page-title .page-title,
body.lcm-hide-page-title h1.page-title,
body.lcm-hide-page-title .block-page-title-block,
body.lcm-hide-page-title .region-content > h1:first-child,
body.lcm-hide-page-title .block-system-main-block > h1:first-child,
body.lcm-hide-page-title article > header > h1,
body.lcm-hide-page-title .node__title,
body.lcm-hide-page-title .breadcrumb,
body.lcm-hide-page-title .block-system-breadcrumb-block,
body.lcm-hide-page-title nav.breadcrumb,
body.lcm-hide-page-title .breadcrumb-wrapper,
body.lcm-hide-page-title .block--breadcrumb,
body.lcm-hide-page-title .tabs,
body.lcm-hide-page-title .block-local-tasks-block,
body.lcm-hide-page-title nav.tabs,
body.lcm-hide-page-title .site-header,
body.lcm-hide-page-title #header,
body.lcm-hide-page-title .region-header,
body.lcm-hide-page-title .layout-header,
body.lcm-hide-page-title header[role="banner"],
body.lcm-hide-page-title .header,
body.lcm-hide-page-title .site-branding,
body.lcm-hide-page-title .block-system-branding-block,
body.lcm-hide-page-title #navbar-top,
body.lcm-hide-page-title .navbar,
body.lcm-hide-page-title .primary-nav,
body.lcm-hide-page-title .menu--main,
body.lcm-hide-page-title .site-footer,
body.lcm-hide-page-title .region-footer,
body.lcm-hide-page-title .layout-footer,
body.lcm-hide-page-title footer[role="contentinfo"],
body.lcm-hide-page-title .footer {
  display: none !important;
}

/* ============================================
   REUSABLE GLASS MORPHISM HEADER
   Same pattern used on course page, now available everywhere
   ============================================ */
.lcm-header-glass {
  margin-bottom: 2rem;
}

.lcm-header-gradient-wrapper {
  padding: 3px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

.lcm-header-content {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 17px;
  padding: 1.75rem 2rem;
  overflow: hidden;
}

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

.lcm-header-left {
  flex: 1;
  min-width: 0;
}

.lcm-header-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #9ca3af;
  text-decoration: none;
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
  transition: color 0.2s;
}

.lcm-header-back:hover {
  color: #6b7280;
}

.lcm-header-back svg {
  width: 16px;
  height: 16px;
}

.lcm-header-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #111827;
  margin: 0 0 0.25rem 0;
  line-height: 1.2;
}

.lcm-header-desc {
  color: #6b7280;
  font-size: 1.0625rem;
  margin: 0;
  line-height: 1.5;
}

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

.lcm-header-stats {
  display: flex;
  gap: 6px;
}

.lcm-header-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 10px 16px;
  min-width: 72px;
}

.lcm-header-stat-val {
  font-size: 1.125rem;
  font-weight: 700;
  color: #111827;
}

.lcm-header-stat-lbl {
  font-size: 0.75rem;
  font-weight: 500;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.lcm-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  text-decoration: none;
}

.lcm-header-badge-pro {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.lcm-header-badge-active {
  background: #dcfce7;
  color: #15803d;
}

@media (max-width: 768px) {
  .lcm-header-content { padding: 1.25rem; }
  .lcm-header-top { flex-direction: column; gap: 1rem; }
  .lcm-header-stats { width: 100%; justify-content: center; }
  .lcm-header-stat { flex: 1; min-width: 0; }
}

/* ============================================
   HIDE ONLY THEME BREADCRUMB ON ORG PAGES
   Keeps header, tabs, footer etc. intact.
   ============================================ */
body.lcm-hide-breadcrumb .breadcrumb,
body.lcm-hide-breadcrumb .block-system-breadcrumb-block,
body.lcm-hide-breadcrumb nav.breadcrumb,
body.lcm-hide-breadcrumb .breadcrumb-wrapper,
body.lcm-hide-breadcrumb .block--breadcrumb {
  display: none !important;
}

/* ════════════════════════════════════════════════
   CSS VARIABLES — Typography + Design Tokens
   ════════════════════════════════════════════════ */
:root {
  /* ── Color System ── */
  --lcm-primary: #3b82f6;
  --lcm-primary-dark: #2563eb;
  --lcm-secondary: #8b5cf6;
  --lcm-success: #22c55e;
  --lcm-warning: #f59e0b;
  --lcm-danger: #dc2626;
  --lcm-gray-50: #f8fafc;
  --lcm-gray-100: #f1f5f9;
  --lcm-gray-200: #e2e8f0;
  --lcm-gray-300: #cbd5e1;
  --lcm-gray-400: #94a3b8;
  --lcm-gray-500: #64748b;
  --lcm-gray-600: #475569;
  --lcm-gray-700: #334155;
  --lcm-gray-800: #1e293b;
  --lcm-gray-900: #0f172a;

  /* ── Border Radius ── */
  --lcm-radius-sm: 6px;
  --lcm-radius-md: 8px;
  --lcm-radius-lg: 12px;
  --lcm-radius-xl: 16px;

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

  /* ── Font Stacks ── */
  --lcm-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --lcm-font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', Consolas, monospace;
  --lcm-font-bengali: 'Noto Sans Bengali', 'Hind Siliguri', 'Kalpurush', var(--lcm-font-reading);
  --lcm-font-reading: 'Lato', 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* ── Typography Scale (Inter-optimized) ──
   * 0.75rem  (12px) w600  — tiny badges, labels
   * 0.875rem (14px) w500  — UI meta, secondary text
   * 1rem     (16px) w400  — body text, options, descriptions
   * 1.25rem  (20px) w600  — section headings (h3)
   * 1.5rem   (24px) w600  — page subtitles (h2)
   * 2rem     (32px) w700  — page titles (h1)
   * 3rem+               — decorative/hero only
   */
  --lcm-text-h1: 2.25rem;
  --lcm-text-h2: 1.75rem;
  --lcm-text-h3: 1.5rem;
  --lcm-text-body: 1.125rem;
  --lcm-text-ui: 1rem;
  --lcm-text-xs: 0.875rem;

  --lcm-lh-heading: 1.3;
  --lcm-lh-subheading: 1.4;
  --lcm-lh-body: 1.7;
  --lcm-lh-ui: 1.5;

  --lcm-text-color: #1e293b;
  --lcm-text-secondary: #475569;
  --lcm-text-muted: #94a3b8;
  --lcm-text-heading: #0f172a;
  --lcm-content-width: 720px;
}

/* Base Reset */
.lcm-page * {
  box-sizing: border-box;
}

.lcm-page {
  font-family: var(--lcm-font-family);
  color: var(--lcm-text-color);
  line-height: var(--lcm-lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'cv01', 'cv02', 'case';
}

/* ════════════════════════════════════════════════
   TYPOGRAPHY NORMALIZATION
   Single source of truth — all LCM containers inherit
   consistent font, size, color, and smoothing.
   Individual CSS files override ONLY specific elements.
   ════════════════════════════════════════════════ */

/* ── All page-level containers ── */
.lcm-course-page,
.lcm-lesson-page,
.lcm-content-page,
.lcm-analytics-page,
.lcm-ai-insights,
.lcm-study-plan,
.lcm-pro-upgrade,
.lcm-flashcards-page,
.lcm-leaderboard-page,
.lcm-discussions-page,
.lcm-my-courses,
.lcm-dashboard,
.lcm-bookmarks-page,
.lcm-calendar-page {
  font-family: var(--lcm-font-family);
  font-size: var(--lcm-text-body);
  line-height: var(--lcm-lh-body);
  color: var(--lcm-text-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── All 20 content type containers ── */
.lcm-ct-video,
.lcm-video-notes,
.lcm-notes-panel,
.lcm-reading-panel,
.lcm-context-notes,
.lcm-ct-notes,
.lcm-case-study,
.lcm-checklist,
.lcm-external-link,
.lcm-meet,
.lcm-podcast,
.lcm-mindmap-wrap,
.gls,
.lcm-flashcard-launcher,
.lcm-study-accordion,
.asgn,
.dsc,
.wex,
.lcm-mcq-practice-pro,
.lcm-qa-flashcards-pro {
  font-family: var(--lcm-font-reading, var(--lcm-font-family));
  font-size: 20px;
  line-height: 35px;
  color: var(--lcm-text-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Pro / AI pages ── */
.sb-container,
.sb-chat-container {
  font-family: var(--lcm-font-family);
  font-size: var(--lcm-text-body);
  line-height: var(--lcm-lh-body);
  color: var(--lcm-text-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Heading scale (applies to all LCM containers) ── */
.lcm-page h1,
.lcm-course-page h1, .lcm-lesson-page h1, .lcm-content-page h1,
.lcm-analytics-page h1, .lcm-ai-insights h1, .lcm-study-plan h1,
.lcm-pro-upgrade h1, .lcm-flashcards-page h1, .lcm-leaderboard-page h1,
.lcm-discussions-page h1, .lcm-my-courses h1, .lcm-dashboard h1 {
  font-size: var(--lcm-text-h1);
  font-weight: 700;
  line-height: var(--lcm-lh-heading);
  letter-spacing: -0.02em;
  color: var(--lcm-text-heading);
}

.lcm-page h2,
.lcm-course-page h2, .lcm-lesson-page h2, .lcm-content-page h2,
.lcm-analytics-page h2, .lcm-ai-insights h2, .lcm-study-plan h2,
.lcm-pro-upgrade h2, .lcm-flashcards-page h2, .lcm-leaderboard-page h2,
.lcm-discussions-page h2, .lcm-my-courses h2, .lcm-dashboard h2 {
  font-size: var(--lcm-text-h2);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--lcm-text-heading);
}

.lcm-page h3,
.lcm-course-page h3, .lcm-lesson-page h3, .lcm-content-page h3,
.lcm-analytics-page h3, .lcm-ai-insights h3, .lcm-study-plan h3,
.lcm-pro-upgrade h3, .lcm-flashcards-page h3, .lcm-leaderboard-page h3,
.lcm-discussions-page h3, .lcm-my-courses h3, .lcm-dashboard h3 {
  font-size: var(--lcm-text-h3);
  font-weight: 600;
  line-height: var(--lcm-lh-subheading);
  letter-spacing: -0.01em;
  color: var(--lcm-text-heading);
}

/* ── Reading content areas (17px for long-form) ── */
.lcm-notes-panel .notes-body,
.lcm-reading-panel .reading-body,
.lcm-context-notes .context-notes-content,
.lcm-case-study .case-content,
.lcm-case-study .case-body,
.gls .gls-desc-text,
.dsc .dsc-body,
.dsc .dsc-reply-text,
.asgn .asgn-body {
  font-size: 1.125rem;
  line-height: var(--lcm-lh-body);
  max-width: var(--lcm-content-width);
}

/* ── Bengali content override ── */
.bangla,
[lang="bn"],
.notes-body.bangla,
.reading-body.bangla,
.context-notes-content.bangla,
.gls-desc-text.bangla {
  font-family: var(--lcm-font-bengali);
  line-height: 2;
}

/* ── UI elements (14px for buttons, badges, meta) ── */
.lcm-page .lcm-badge,
.lcm-page .lcm-btn,
.lcm-page .lcm-tag,
.lcm-page .lcm-meta,
.lcm-page .lcm-card-meta,
.lcm-page .lcm-stat-label {
  font-size: var(--lcm-text-ui);
  line-height: var(--lcm-lh-ui);
}

/* ── Code / monospace ── */
.lcm-page code,
.lcm-page pre,
.lcm-page .lcm-code {
  font-family: var(--lcm-font-mono);
  font-size: 1.125rem;
  line-height: 1.5;
}

/* Tabular numbers for all data-heavy elements */
.lcm-page .lcm-stat-value,
.lcm-page .lcm-gauge-value,
.lcm-page .lcm-rank-number,
.lcm-page .lcm-countdown-number,
.lcm-page .lcm-factor-value,
.lcm-page .lcm-mastery-value,
.lcm-page .lcm-velocity-value,
.lcm-page .lcm-progress-pct,
.lcm-page .lcm-status-count,
.lcm-page table td,
.lcm-page .lcm-comparison-table td {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'cv01', 'cv02', 'case', 'tnum';
}

/* Headings - tighter tracking for display sizes */
.lcm-page .lcm-page-title,
.lcm-page .lcm-card-header h2 {
  letter-spacing: -0.025em;
  font-weight: 700;
}

.lcm-page .lcm-page-title {
  letter-spacing: -0.03em;
  font-weight: 800;
}

/* Labels & small text - slightly wider tracking */
.lcm-page .lcm-stat-label,
.lcm-page .lcm-gauge-label,
.lcm-page .lcm-factor-label,
.lcm-page .lcm-badge,
.lcm-page .lcm-text-xs,
.lcm-page .lcm-stat-sub,
.lcm-page .lcm-countdown-label,
.lcm-page .lcm-rank-label,
.lcm-page .lcm-progress-label {
  letter-spacing: 0.01em;
}

/* Common Components */
.lcm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 1.125rem;
  font-weight: 500;
  border-radius: var(--lcm-radius-md);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
}

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

.lcm-btn-primary:hover {
  background: var(--lcm-primary-dark);
}

.lcm-btn-secondary {
  background: var(--lcm-gray-100);
  color: var(--lcm-gray-700);
}

.lcm-btn-secondary:hover {
  background: var(--lcm-gray-200);
}

.lcm-btn-success {
  background: var(--lcm-success);
  color: white;
}

.lcm-btn-danger {
  background: var(--lcm-danger);
  color: white;
}

/* Cards */
.lcm-card {
  background: white;
  border-radius: var(--lcm-radius-lg);
  box-shadow: var(--lcm-shadow-md);
  overflow: hidden;
}

.lcm-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--lcm-gray-100);
}

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

.lcm-card-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--lcm-gray-100);
  background: var(--lcm-gray-50);
}

/* Progress Bars */
.lcm-progress {
  height: 8px;
  background: var(--lcm-gray-200);
  border-radius: 4px;
  overflow: hidden;
}

.lcm-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--lcm-primary) 0%, var(--lcm-secondary) 100%);
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* Badges */
.lcm-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 20px;
}

.lcm-badge-primary {
  background: #dbeafe;
  color: #1d4ed8;
}

.lcm-badge-success {
  background: #dcfce7;
  color: #166534;
}

.lcm-badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.lcm-badge-danger {
  background: #fee2e2;
  color: var(--lcm-danger);
}

/* Forms */
.lcm-form-group {
  margin-bottom: 1rem;
}

.lcm-form-label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--lcm-gray-700);
}

.lcm-form-input,
.lcm-form-select,
.lcm-form-textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: var(--lcm-font-family);
  font-size: 1.125rem;
  border: 1px solid var(--lcm-gray-300);
  border-radius: var(--lcm-radius-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.lcm-form-input:focus,
.lcm-form-select:focus,
.lcm-form-textarea:focus {
  outline: none;
  border-color: var(--lcm-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Alerts */
.lcm-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--lcm-radius-md);
  margin-bottom: 1rem;
}

.lcm-alert-info {
  background: #dbeafe;
  border: 1px solid #93c5fd;
  color: #1e40af;
}

.lcm-alert-success {
  background: #dcfce7;
  border: 1px solid #86efac;
  color: #166534;
}

.lcm-alert-warning {
  background: #fef3c7;
  border: 1px solid #fcd34d;
  color: #92400e;
}

.lcm-alert-danger {
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

/* Modals */
.lcm-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.lcm-modal {
  background: white;
  border-radius: var(--lcm-radius-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow: auto;
}

.lcm-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--lcm-gray-100);
}

.lcm-modal-title {
  margin: 0;
  font-size: 1.5rem;
}

.lcm-modal-close {
  background: none;
  border: none;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--lcm-gray-400);
}

.lcm-modal-body {
  padding: 1.5rem;
}

.lcm-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--lcm-gray-100);
}

/* Loading States */
.lcm-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lcm-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--lcm-gray-200);
  border-top-color: var(--lcm-primary);
  border-radius: 50%;
  animation: lcm-spin 0.8s linear infinite;
}

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

/* Toast Notifications */
.lcm-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  background: var(--lcm-gray-800);
  color: white;
  border-radius: var(--lcm-radius-md);
  box-shadow: var(--lcm-shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 9999;
}

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

.lcm-toast-success {
  background: var(--lcm-success);
}

.lcm-toast-error {
  background: var(--lcm-danger);
}

/* Empty States */
.lcm-empty {
  text-align: center;
  padding: 3rem 2rem;
}

.lcm-empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.lcm-empty-title {
  margin: 0 0 0.5rem 0;
  color: var(--lcm-gray-800);
}

.lcm-empty-text {
  margin: 0;
  color: var(--lcm-gray-500);
}

/* Tables */
.lcm-table {
  width: 100%;
  border-collapse: collapse;
}

.lcm-table th,
.lcm-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--lcm-gray-100);
}

.lcm-table th {
  font-weight: 600;
  color: var(--lcm-gray-600);
  background: var(--lcm-gray-50);
}

.lcm-table tr:hover td {
  background: var(--lcm-gray-50);
}

/* Utilities */
.lcm-text-center { text-align: center; }
.lcm-text-right { text-align: right; }
.lcm-text-muted { color: var(--lcm-gray-500); }
.lcm-text-sm { font-size: var(--lcm-text-ui); }
.lcm-text-xs { font-size: var(--lcm-text-xs); }
.lcm-font-bold { font-weight: 700; }
.lcm-font-medium { font-weight: 500; }
.lcm-mt-1 { margin-top: 0.25rem; }
.lcm-mt-2 { margin-top: 0.5rem; }
.lcm-mt-4 { margin-top: 1rem; }
.lcm-mb-1 { margin-bottom: 0.25rem; }
.lcm-mb-2 { margin-bottom: 0.5rem; }
.lcm-mb-4 { margin-bottom: 1rem; }
.lcm-flex { display: flex; }
.lcm-flex-col { flex-direction: column; }
.lcm-items-center { align-items: center; }
.lcm-justify-between { justify-content: space-between; }
.lcm-gap-1 { gap: 0.25rem; }
.lcm-gap-2 { gap: 0.5rem; }
.lcm-gap-4 { gap: 1rem; }

/* ============================================
   COMMON NAVIGATION COMPONENTS
   ============================================ */

/* Page Header */
.lcm-page-header {
  margin-bottom: 1rem;
}

.lcm-page-header .back-link {
  color: var(--lcm-primary);
  text-decoration: none;
  font-size: 1rem;
}

.lcm-page-header .back-link:hover {
  text-decoration: underline;
}

.lcm-page-header h1 {
  margin: 0.25rem 0 0 0;
  font-size: 1.75rem;
  color: var(--lcm-gray-800);
}

/* Student Navigation Tabs (Light Background) */
.lcm-student-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  padding: 0.25rem;
  background: var(--lcm-gray-100);
  border-radius: 12px;
  overflow-x: auto;
}

.lcm-student-tabs .tab-item {
  padding: 0.625rem 1.25rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--lcm-gray-500);
  font-weight: 500;
  font-size: 1rem;
  white-space: nowrap;
  transition: all 0.2s;
}

.lcm-student-tabs .tab-item:hover {
  background: rgba(255,255,255,0.7);
  color: var(--lcm-gray-800);
}

.lcm-student-tabs .tab-item.active {
  background: white;
  color: var(--lcm-primary);
  box-shadow: var(--lcm-shadow-sm);
}

/* Admin Course Tabs */
.lcm-course-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  padding: 0.25rem;
  background: var(--lcm-gray-100);
  border-radius: 10px;
  overflow-x: auto;
}

.lcm-course-tabs .tab-item {
  padding: 0.625rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--lcm-gray-500);
  font-weight: 500;
  font-size: 1rem;
  white-space: nowrap;
  transition: all 0.2s;
}

.lcm-course-tabs .tab-item:hover {
  background: rgba(255,255,255,0.5);
  color: var(--lcm-gray-800);
}

.lcm-course-tabs .tab-item.active {
  background: white;
  color: var(--lcm-primary);
  box-shadow: var(--lcm-shadow-sm);
}

/* Admin Navigation Bar */
.lcm-admin-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.5rem;
  background: var(--lcm-gray-100);
  border-radius: 12px;
  overflow-x: auto;
}

.lcm-admin-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--lcm-gray-500);
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s;
}

.lcm-admin-nav .nav-item:hover {
  background: white;
  color: var(--lcm-gray-800);
}

.lcm-admin-nav .nav-item.active {
  background: white;
  color: var(--lcm-primary);
  box-shadow: var(--lcm-shadow-sm);
}