/* ============================================================
   AI LMS — Public / Frontend Styles
   Premium Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --lms-primary:      #4f46e5;
  --lms-primary-l:    #818cf8;
  --lms-primary-d:    #3730a3;
  --lms-accent:       #06b6d4;
  --lms-accent-l:     #a5f3fc;
  --lms-success:      #10b981;
  --lms-warning:      #f59e0b;
  --lms-danger:       #ef4444;
  --lms-bg:           #f8faff;
  --lms-surface:      #ffffff;
  --lms-surface-2:    #f1f5f9;
  --lms-border:       #e2e8f0;
  --lms-border-l:     #f1f5f9;
  --lms-text:         #0f172a;
  --lms-text-2:       #334155;
  --lms-muted:        #64748b;
  --lms-radius:       12px;
  --lms-radius-sm:    8px;
  --lms-shadow-sm:    0 1px 2px rgba(0,0,0,.05);
  --lms-shadow:       0 4px 16px rgba(0,0,0,.08);
  --lms-shadow-lg:    0 12px 40px rgba(0,0,0,.12);
  --lms-font:         'Sora', system-ui, sans-serif;
  --lms-mono:         'JetBrains Mono', monospace;
  --lms-transition:   all .2s cubic-bezier(.4,0,.2,1);
}

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

.lms-wrap {
  font-family: var(--lms-font);
  color: var(--lms-text);
  line-height: 1.6;
  background: var(--lms-bg);
  min-height: 60vh;
}

/* ── Global elements ─────────────────────────────────────── */
.lms-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--lms-radius-sm);
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--lms-transition);
  font-family: var(--lms-font);
  line-height: 1;
}

.lms-btn-primary {
  background: var(--lms-primary);
  color: #fff;
}
.lms-btn-primary:hover {
  background: var(--lms-primary-d);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(79,70,229,.4);
}

.lms-btn-outline {
  background: transparent;
  color: var(--lms-primary);
  border: 1.5px solid var(--lms-primary);
}
.lms-btn-outline:hover { background: var(--lms-primary); color: #fff; }

.lms-btn-ghost {
  background: var(--lms-surface-2);
  color: var(--lms-text-2);
}
.lms-btn-ghost:hover { background: var(--lms-border); }

.lms-btn-success { background: var(--lms-success); color: #fff; }
.lms-btn-danger  { background: var(--lms-danger);  color: #fff; }
.lms-btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 10px; }
.lms-btn-sm { padding: 6px 12px; font-size: .8rem; }
.lms-btn:disabled { opacity: .5; cursor: not-allowed; }

.lms-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.4;
}
.lms-badge-primary   { background: #ede9fe; color: var(--lms-primary); }
.lms-badge-success   { background: #d1fae5; color: #065f46; }
.lms-badge-warning   { background: #fef3c7; color: #92400e; }
.lms-badge-danger    { background: #fee2e2; color: #991b1b; }
.lms-badge-blue      { background: #dbeafe; color: #1e40af; }
.lms-badge-gray      { background: var(--lms-surface-2); color: var(--lms-muted); }

.lms-notice {
  padding: 14px 18px;
  border-radius: var(--lms-radius-sm);
  font-size: .9rem;
  margin: 12px 0;
}
.lms-notice-warning { background: #fffbeb; border-left: 4px solid var(--lms-warning); }
.lms-notice-error   { background: #fef2f2; border-left: 4px solid var(--lms-danger);  }
.lms-notice-success { background: #ecfdf5; border-left: 4px solid var(--lms-success); }
.lms-notice-info    { background: #eff6ff; border-left: 4px solid var(--lms-accent);  }

.lms-error { color: var(--lms-danger); padding: 20px; text-align: center; }

.lms-login-prompt {
  text-align: center;
  padding: 60px 20px;
  background: var(--lms-surface);
  border-radius: var(--lms-radius);
  border: 1px solid var(--lms-border);
}

/* ── Progress bar ─────────────────────────────────────────── */
.lms-progress-widget { margin: 12px 0; }

.lms-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: .82rem;
  color: var(--lms-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.lms-progress-track {
  height: 8px;
  background: var(--lms-border);
  border-radius: 20px;
  overflow: hidden;
}

.lms-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--lms-primary), var(--lms-accent));
  border-radius: 20px;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}

/* ================================================================
   COURSE LIST
   ================================================================ */
.lms-course-list { padding: 24px 0; }

.lms-course-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.lms-course-list-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
  color: var(--lms-text);
}

.lms-course-grid {
  display: grid;
  grid-template-columns: repeat(var(--lms-cols, 3), 1fr);
  gap: 24px;
}

@media (max-width: 900px) { .lms-course-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .lms-course-grid { grid-template-columns: 1fr; } }

.lms-course-card {
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  overflow: hidden;
  transition: var(--lms-transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--lms-shadow-sm);
}

.lms-course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--lms-shadow-lg);
  border-color: var(--lms-primary-l);
}

.lms-course-card-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  position: relative;
  overflow: hidden;
}

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

.lms-course-card-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,.6);
}

.lms-course-card-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lms-course-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--lms-text);
  line-height: 1.35;
  margin: 0;
}

.lms-course-card-desc {
  font-size: .85rem;
  color: var(--lms-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.lms-course-card-meta {
  display: flex;
  gap: 12px;
  font-size: .78rem;
  color: var(--lms-muted);
  flex-wrap: wrap;
}

.lms-course-card-meta span { display: flex; align-items: center; gap: 4px; }

.lms-course-card-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--lms-border-l);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lms-price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--lms-primary);
}
.lms-price-free { color: var(--lms-success); }

/* ================================================================
   COURSE DETAILS PAGE
   ================================================================ */
.lms-course-details { font-family: var(--lms-font); }

.lms-course-hero {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #1e3a5f 100%);
  color: #fff;
  padding: 48px 40px;
  border-radius: var(--lms-radius);
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.lms-course-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.lms-course-hero-content { position: relative; z-index: 1; }

.lms-course-hero-cats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.lms-course-hero-cat {
  background: rgba(255,255,255,.15);
  color: #fff;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.lms-course-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  margin: 0 0 12px;
  line-height: 1.2;
  color: #fff;
}

.lms-course-hero-desc {
  font-size: 1rem;
  opacity: .85;
  max-width: 680px;
  margin: 0 0 20px;
  line-height: 1.6;
}

.lms-course-hero-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: .85rem;
  opacity: .8;
}
.lms-course-hero-stats span { display: flex; align-items: center; gap: 6px; }

.lms-course-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
}

@media (max-width: 900px) { .lms-course-layout { grid-template-columns: 1fr; } }

.lms-course-sidebar {
  position: sticky;
  top: 24px;
}

.lms-course-sidebar-card {
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  overflow: hidden;
  box-shadow: var(--lms-shadow);
}

.lms-course-sidebar-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
}
.lms-course-sidebar-thumb img { width: 100%; height: 100%; object-fit: cover; }

.lms-course-sidebar-body { padding: 20px; }

.lms-course-sidebar-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--lms-primary);
  margin-bottom: 16px;
}
.lms-course-sidebar-price.free { color: var(--lms-success); }

.lms-course-features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.lms-course-features-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .87rem;
  color: var(--lms-text-2);
}
.lms-course-features-list li::before {
  content: '✓';
  color: var(--lms-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* Tabs */
.lms-course-tabs { margin-bottom: 28px; }

.lms-tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--lms-border);
  overflow-x: auto;
}

.lms-tab-btn {
  padding: 12px 20px;
  border: none;
  background: none;
  color: var(--lms-muted);
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  font-family: var(--lms-font);
  transition: var(--lms-transition);
}
.lms-tab-btn:hover { color: var(--lms-primary); }
.lms-tab-btn.active { color: var(--lms-primary); border-bottom-color: var(--lms-primary); }

.lms-tab-panel { display: none; padding: 24px 0; }
.lms-tab-panel.active { display: block; }

/* Curriculum accordion */
.lms-curriculum-section {
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.lms-curriculum-section-header {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  background: var(--lms-surface-2);
  cursor: pointer;
  user-select: none;
  transition: var(--lms-transition);
  gap: 10px;
}

.lms-curriculum-section-header:hover { background: #e8edf5; }

.lms-curriculum-section-title {
  flex: 1;
  font-weight: 700;
  font-size: .95rem;
}

.lms-curriculum-section-meta {
  font-size: .78rem;
  color: var(--lms-muted);
}

.lms-curriculum-chevron {
  font-size: 1rem;
  color: var(--lms-muted);
  transition: transform .25s;
}
.lms-curriculum-section.open .lms-curriculum-chevron { transform: rotate(90deg); }

.lms-curriculum-section-body { display: none; }
.lms-curriculum-section.open .lms-curriculum-section-body { display: block; }

.lms-curriculum-subsection {
  padding: 8px 18px 4px;
  font-size: .82rem;
  color: var(--lms-muted);
  font-weight: 600;
  background: #fafbff;
  border-bottom: 1px solid var(--lms-border-l);
}

.lms-curriculum-lesson {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--lms-border-l);
  font-size: .88rem;
  color: var(--lms-text-2);
  transition: var(--lms-transition);
}
.lms-curriculum-lesson:last-child { border-bottom: none; }
.lms-curriculum-lesson:hover { background: #f0f4ff; }
.lms-curriculum-lesson.completed { color: var(--lms-success); }
.lms-curriculum-lesson.completed .lms-lesson-icon { opacity: .6; }

.lms-lesson-icon { font-size: 1rem; flex-shrink: 0; }
.lms-lesson-title-link { flex: 1; color: inherit; text-decoration: none; }
.lms-lesson-title-link:hover { color: var(--lms-primary); }
.lms-lesson-check { color: var(--lms-success); font-size: .9rem; }

/* Mock tests list */
.lms-mock-tests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.lms-mock-test-card {
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius-sm);
  padding: 18px;
  transition: var(--lms-transition);
}
.lms-mock-test-card:hover {
  border-color: var(--lms-primary-l);
  box-shadow: var(--lms-shadow);
}

.lms-mock-test-card-title { font-weight: 700; margin: 0 0 10px; font-size: .95rem; }

.lms-mock-test-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .78rem;
  color: var(--lms-muted);
  margin-bottom: 14px;
}

/* FAQ */
.lms-faq-list { display: flex; flex-direction: column; gap: 10px; }

.lms-faq-item {
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius-sm);
  overflow: hidden;
}

.lms-faq-question {
  padding: 14px 18px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--lms-surface-2);
  user-select: none;
  font-size: .9rem;
}

.lms-faq-answer {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  font-size: .88rem;
  color: var(--lms-text-2);
  line-height: 1.7;
}
.lms-faq-item.open .lms-faq-answer { max-height: 400px; padding: 14px 18px; }

.lms-faq-toggle { font-size: 1.2rem; color: var(--lms-muted); transition: transform .25s; }
.lms-faq-item.open .lms-faq-toggle { transform: rotate(45deg); }

/* ================================================================
   LESSON PLAYER
   ================================================================ */
.lms-lesson-player {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  min-height: 80vh;
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  overflow: hidden;
}

@media (max-width: 800px) { .lms-lesson-player { grid-template-columns: 1fr; } }

/* Sidebar */
.lms-player-sidebar {
  border-right: 1px solid var(--lms-border);
  background: var(--lms-surface-2);
  overflow-y: auto;
  max-height: 90vh;
}

.lms-player-sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--lms-border);
  background: var(--lms-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.lms-player-sidebar-header h3 {
  font-size: .9rem;
  font-weight: 700;
  margin: 0 0 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lms-player-nav {
  display: flex;
  flex-direction: column;
}

.lms-player-section-title {
  padding: 10px 16px 6px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--lms-muted);
  background: var(--lms-surface-2);
}

.lms-player-nav-lesson {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: .83rem;
  color: var(--lms-text-2);
  text-decoration: none;
  border-bottom: 1px solid var(--lms-border-l);
  transition: var(--lms-transition);
  cursor: pointer;
}
.lms-player-nav-lesson:hover { background: #e8edf5; color: var(--lms-text); }
.lms-player-nav-lesson.active { background: #ede9fe; color: var(--lms-primary); font-weight: 600; }
.lms-player-nav-lesson.completed { color: var(--lms-success); }

.lms-player-nav-icon { font-size: .9rem; flex-shrink: 0; }
.lms-player-nav-title { flex: 1; line-height: 1.3; }
.lms-player-nav-check { color: var(--lms-success); font-size: .85rem; }

/* Main content area */
.lms-player-main {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  max-height: 90vh;
}

.lms-player-topbar {
  padding: 14px 20px;
  border-bottom: 1px solid var(--lms-border);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--lms-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.lms-player-topbar h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  flex: 1;
}

.lms-player-content { padding: 28px; flex: 1; }

.lms-lesson-text-content { font-size: .95rem; line-height: 1.75; color: var(--lms-text-2); }
.lms-lesson-text-content h2, .lms-lesson-text-content h3 { color: var(--lms-text); }
.lms-lesson-text-content code { font-family: var(--lms-mono); background: #f1f5f9; padding: 2px 6px; border-radius: 4px; }
.lms-lesson-text-content pre { background: #1e293b; color: #e2e8f0; padding: 16px; border-radius: 8px; overflow-x: auto; }

/* Video embed */
.lms-video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--lms-radius-sm);
  overflow: hidden;
  background: #000;
  margin-bottom: 24px;
}
.lms-video-wrap iframe, .lms-video-wrap video { position: absolute; inset: 0; width: 100%; height: 100%; }

/* PDF viewer */
.lms-pdf-wrap { border: 1px solid var(--lms-border); border-radius: var(--lms-radius-sm); overflow: hidden; margin-bottom: 24px; }
.lms-pdf-wrap iframe { width: 100%; height: 600px; border: none; }

/* Player bottom bar */
.lms-player-bottombar {
  padding: 14px 20px;
  border-top: 1px solid var(--lms-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--lms-surface);
}

/* AI Notes panel */
.lms-ai-notes-panel {
  margin-top: 24px;
  border: 1px solid #c7d2fe;
  border-radius: var(--lms-radius-sm);
  overflow: hidden;
}

.lms-ai-notes-header {
  background: linear-gradient(135deg, #ede9fe, #dbeafe);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: .9rem;
  color: var(--lms-primary);
}

.lms-ai-notes-body { padding: 16px; background: #fafbff; }

.lms-ai-notes-body h4 { font-size: .85rem; font-weight: 700; margin: 14px 0 6px; color: var(--lms-text); }
.lms-ai-notes-body p  { font-size: .85rem; color: var(--lms-text-2); margin: 0 0 8px; }
.lms-ai-notes-body ul { margin: 0; padding-left: 18px; font-size: .85rem; color: var(--lms-text-2); }
.lms-ai-notes-body ul li { margin-bottom: 4px; }

/* ================================================================
   MOCK TEST UI
   ================================================================ */
.lms-mock-test-list { padding: 0; }

.lms-test-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

/* Test taking interface */
.lms-test-container {
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  overflow: hidden;
}

.lms-test-topbar {
  background: linear-gradient(135deg, #1e1b4b, #312e81);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.lms-test-topbar h2 { flex: 1; font-size: 1rem; font-weight: 700; margin: 0; }

.lms-test-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--lms-mono);
  font-size: 1.1rem;
  font-weight: 700;
  background: rgba(255,255,255,.15);
  padding: 6px 14px;
  border-radius: 8px;
}
.lms-test-timer.warning { color: var(--lms-warning); }
.lms-test-timer.danger  { color: #f87171; animation: pulse 1s infinite; }

.lms-test-body {
  display: grid;
  grid-template-columns: 1fr 260px;
  min-height: 70vh;
}

@media (max-width: 768px) { .lms-test-body { grid-template-columns: 1fr; } }

.lms-test-question-area { padding: 28px; overflow-y: auto; }

.lms-question-number {
  font-size: .78rem;
  font-weight: 700;
  color: var(--lms-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.lms-question-text {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--lms-text);
  margin-bottom: 24px;
}

.lms-question-difficulty {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.lms-diff-easy   { background: #d1fae5; color: #065f46; }
.lms-diff-medium { background: #fef3c7; color: #92400e; }
.lms-diff-hard   { background: #fee2e2; color: #991b1b; }

.lms-options { display: flex; flex-direction: column; gap: 10px; }

.lms-option-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border: 2px solid var(--lms-border);
  border-radius: var(--lms-radius-sm);
  cursor: pointer;
  transition: var(--lms-transition);
  font-size: .92rem;
  line-height: 1.45;
}
.lms-option-label:hover { border-color: var(--lms-primary-l); background: #f0f4ff; }
.lms-option-label:has(input:checked) { border-color: var(--lms-primary); background: #ede9fe; font-weight: 600; }

.lms-option-label.correct { border-color: var(--lms-success); background: #d1fae5; }
.lms-option-label.wrong   { border-color: var(--lms-danger);  background: #fee2e2; }

.lms-option-label input[type="radio"] { margin-top: 2px; accent-color: var(--lms-primary); flex-shrink: 0; }

.lms-question-nav-btns {
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--lms-border);
  gap: 12px;
  flex-wrap: wrap;
}

/* Question palette */
.lms-test-palette {
  border-left: 1px solid var(--lms-border);
  background: var(--lms-surface-2);
  padding: 16px;
  overflow-y: auto;
}

.lms-palette-title { font-size: .8rem; font-weight: 700; color: var(--lms-muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }

.lms-palette-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin-bottom: 16px; }

.lms-palette-btn {
  aspect-ratio: 1;
  border: 1px solid var(--lms-border);
  border-radius: 6px;
  background: var(--lms-surface);
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--lms-transition);
  font-family: var(--lms-font);
}
.lms-palette-btn:hover { border-color: var(--lms-primary); }
.lms-palette-btn.answered  { background: var(--lms-primary); color: #fff; border-color: var(--lms-primary); }
.lms-palette-btn.active    { border: 2px solid var(--lms-accent); }
.lms-palette-btn.skipped   { background: var(--lms-warning); color: #fff; border-color: var(--lms-warning); }

.lms-palette-legend { display: flex; flex-direction: column; gap: 6px; font-size: .75rem; }
.lms-palette-legend-item { display: flex; align-items: center; gap: 6px; }
.lms-palette-legend-dot { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; }

/* Result screen */
.lms-test-result {
  padding: 40px;
  text-align: center;
}

.lms-result-score-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 8px solid var(--lms-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  background: #ede9fe;
}
.lms-result-score-circle.pass { border-color: var(--lms-success); background: #d1fae5; }
.lms-result-score-circle.fail { border-color: var(--lms-danger); background: #fee2e2; }

.lms-result-pct { font-size: 2.4rem; font-weight: 800; color: var(--lms-primary); line-height: 1; }
.lms-result-pct-label { font-size: .75rem; color: var(--lms-muted); font-weight: 600; }

.lms-result-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 480px;
  margin: 0 auto 28px;
}
.lms-result-stat { background: var(--lms-surface-2); border-radius: var(--lms-radius-sm); padding: 14px; }
.lms-result-stat-val { font-size: 1.4rem; font-weight: 800; }
.lms-result-stat-lbl { font-size: .75rem; color: var(--lms-muted); }

.lms-answer-review { text-align: left; margin-top: 32px; }

.lms-review-question {
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius-sm);
  padding: 16px;
  margin-bottom: 12px;
}

.lms-review-question.correct { border-color: var(--lms-success); background: #f0fdf4; }
.lms-review-question.wrong   { border-color: var(--lms-danger);  background: #fef2f2; }
.lms-review-question.skipped { border-color: var(--lms-warning); background: #fffbeb; }

/* ================================================================
   DASHBOARD
   ================================================================ */
.lms-dashboard { font-family: var(--lms-font); padding: 24px 0; }

.lms-dashboard-header {
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: #fff;
  padding: 32px;
  border-radius: var(--lms-radius);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.lms-dashboard-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  overflow: hidden;
  flex-shrink: 0;
}
.lms-dashboard-avatar img { width: 100%; height: 100%; object-fit: cover; }

.lms-dashboard-welcome h2 { font-size: 1.4rem; font-weight: 800; margin: 0 0 4px; color: #fff; }
.lms-dashboard-welcome p  { font-size: .9rem; opacity: .8; margin: 0; }

.lms-enrolled-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.lms-enrolled-card {
  background: var(--lms-surface);
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: var(--lms-transition);
  box-shadow: var(--lms-shadow-sm);
}
.lms-enrolled-card:hover { box-shadow: var(--lms-shadow); transform: translateY(-2px); }

.lms-enrolled-card-header { display: flex; align-items: center; gap: 12px; }

.lms-enrolled-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.lms-enrolled-card-title { font-size: .95rem; font-weight: 700; color: var(--lms-text); }
.lms-enrolled-card-meta  { font-size: .78rem; color: var(--lms-muted); }

.lms-enrolled-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ================================================================
   GENERATION WAITING SCREEN
   ================================================================ */
.lms-generation-waiting {
  text-align: center;
  padding: 60px 30px;
  font-family: var(--lms-font);
  background: var(--lms-surface);
  border-radius: var(--lms-radius);
  border: 1px solid var(--lms-border);
}

.lms-gen-animation {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ede9fe, #dbeafe);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 3rem;
  animation: lms-pulse-ring 2s cubic-bezier(.4,0,.6,1) infinite;
}

@keyframes lms-pulse-ring {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(79,70,229,.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 0 16px rgba(79,70,229,0); }
}

.lms-generation-waiting h2 { font-size: 1.5rem; font-weight: 800; margin: 0 0 10px; }
.lms-generation-waiting p  { color: var(--lms-muted); font-size: .95rem; margin: 0 0 28px; max-width: 480px; margin-inline: auto; }

.lms-gen-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 460px;
  margin: 0 auto 28px;
  text-align: left;
}

.lms-gen-step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--lms-surface-2);
  border-radius: var(--lms-radius-sm);
  border: 1px solid var(--lms-border);
  transition: var(--lms-transition);
}

.lms-gen-step.active { background: #ede9fe; border-color: var(--lms-primary-l); }
.lms-gen-step.done   { background: #d1fae5; border-color: #a7f3d0; }

.lms-gen-step-icon { font-size: 1.4rem; flex-shrink: 0; }
.lms-gen-step-text h4 { font-size: .88rem; font-weight: 700; margin: 0; }
.lms-gen-step-text p  { font-size: .78rem; color: var(--lms-muted); margin: 2px 0 0; }

.lms-gen-progress-bar { max-width: 460px; margin: 0 auto 20px; }

/* ── Spinner ──────────────────────────────────────────────── */
.lms-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(79,70,229,.2);
  border-top-color: var(--lms-primary);
  border-radius: 50%;
  animation: lms-spin .7s linear infinite;
  vertical-align: middle;
}

@keyframes lms-spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .6; } }