/* Course navigation shell + shared outline */

.course-hub-identity {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 8px;
}

.course-hub-identity__label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 30%, transparent);
  background: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 10%, transparent);
  color: var(--lms-accent, var(--accent, #3d8bfd));
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.course-hub-identity__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

.course-dashboard.course-lms-premium {
  max-width: min(1160px, 100%);
  width: 100%;
}

.course-dashboard-path--compact .course-dashboard-path__track {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.course-dashboard-path--compact details > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  font-weight: 750;
}

.course-dashboard-path--compact details > summary::-webkit-details-marker {
  display: none;
}

.course-lesson-shell {
  width: min(1120px, 100%);
  margin-inline: auto;
  display: block;
}

.course-lesson-shell__main {
  display: grid;
  gap: 14px;
  width: min(900px, 100%);
  margin-inline: auto;
}

.course-lesson-nav {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--lms-card-border, color-mix(in srgb, var(--accent, #3d8bfd) 16%, #d5e1e8));
  background: color-mix(in srgb, var(--lms-card-bg, #fff) 88%, transparent);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(23, 61, 80, 0.08);
  position: sticky;
  top: 12px;
  z-index: 12;
}

.course-lesson-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--lms-muted, #5a7180);
}

.course-lesson-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  opacity: 0.55;
}

.course-lesson-breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.course-lesson-breadcrumb a:hover {
  border-bottom-color: currentColor;
}

.course-lesson-breadcrumb a:focus-visible,
.course-lesson-bar__outline-btn:focus-visible,
.course-lesson-pager a:focus-visible,
.course-lesson-pager button:focus-visible {
  outline: 2px solid var(--lms-focus, var(--accent, #3d8bfd));
  outline-offset: 2px;
  border-radius: 6px;
}

.course-lesson-bar {
  display: grid;
  gap: 8px;
}

.course-lesson-bar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.course-lesson-bar__module {
  margin: 0;
  font-size: 16px;
  font-weight: 750;
  color: var(--lms-heading, #102736);
}

.course-lesson-bar__meta {
  margin: 0;
  font-size: 13px;
  color: var(--lms-muted, #5a7180);
}

.course-lesson-bar__progress {
  flex: 1 1 160px;
  min-width: 140px;
  max-width: 280px;
}

.course-lesson-bar__progress-track {
  height: 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lms-muted, #5a7180) 18%, transparent);
  overflow: hidden;
}

.course-lesson-bar__progress-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--lms-accent, var(--accent, #3d8bfd));
}

.course-lesson-bar__outline-btn {
  margin-left: auto;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 36%, transparent);
  background: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 10%, transparent);
  color: var(--lms-heading, #102736);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.course-lesson-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 650;
  color: var(--lms-muted, #5a7180);
  text-decoration: none;
}

.course-lesson-home-link:hover {
  color: var(--lms-heading, #102736);
}

.course-lesson-status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 28%, transparent);
  font-size: 12px;
  font-weight: 700;
  color: var(--lms-heading, #102736);
}

.course-lesson-pager {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.course-lesson-pager a,
.course-lesson-pager span,
.course-lesson-pager button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--lms-card-border, #d5e1e8) 100%, transparent);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--lms-heading, #102736);
  background: var(--lms-card-bg-soft, #f5f8fb);
  cursor: pointer;
}

.course-lesson-pager a:hover {
  border-color: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 40%, transparent);
}

.course-lesson-pager span[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}

.course-lesson-pager--bottom {
  margin-top: 6px;
  justify-content: space-between;
}

.course-lesson-pager__outline-open {
  border-color: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 38%, transparent);
  background: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 10%, transparent);
}

.course-outline {
  display: grid;
  gap: 10px;
}

.course-outline__modules {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.course-outline__module {
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid var(--lms-card-border, #d5e1e8);
  background: var(--lms-card-bg, #fff);
  transition: border-color 120ms ease, background 120ms ease;
}

.course-outline__module.is-current {
  border-color: color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 42%, transparent);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 18%, transparent),
    0 8px 20px color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 12%, transparent);
}

.course-outline__module.is-completed {
  border-color: var(--lms-success-border, #9ad8bf);
}

.course-outline__module.is-locked {
  opacity: 0.9;
}

.course-outline__module.is-staff-preview {
  border-style: dashed;
}

.course-outline__module-title-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: center;
}

.course-outline__module-chevron {
  margin-left: auto;
  color: var(--lms-muted, #5a7180);
  transform: rotate(-90deg);
  transition: transform 120ms ease;
}

.course-outline__module details[open] .course-outline__module-chevron,
.course-outline__module details[open] > summary .course-outline__module-chevron {
  transform: rotate(0deg);
}

.course-outline__module-order {
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--lms-muted, #5a7180);
}

.course-outline__badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lms-muted, #5a7180) 12%, transparent);
  color: var(--lms-muted, #5a7180);
}

.course-outline__badge--completed {
  background: var(--lms-success-bg, #e5f7ef);
  color: var(--lms-success, #0f7a55);
}

.course-outline__badge--staff_preview,
.course-outline__badge--scheduled {
  background: var(--lms-warn-bg, #fff7e5);
  color: var(--lms-warn, #9a6b10);
}

.course-outline__badge--locked {
  background: color-mix(in srgb, var(--lms-muted, #5a7180) 18%, transparent);
  color: var(--lms-muted, #5a7180);
}

.course-outline__module-title {
  margin: 6px 0 0;
  font-size: 16px;
  font-weight: 750;
  color: var(--lms-heading, #102736);
}

.course-outline__module-description {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--lms-muted, #5a7180);
}

.course-outline__module-meta,
.course-outline__scheduled {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--lms-muted, #5a7180);
}

.course-outline__lessons {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.course-outline__lesson-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  padding: 8px 10px;
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  background: var(--lms-lesson-bg, #f7fafc);
  border: 1px solid color-mix(in srgb, var(--lms-card-border, #d5e1e8) 88%, transparent);
}

.course-outline__lesson.is-current .course-outline__lesson-link {
  background: var(--lms-lesson-current, color-mix(in srgb, var(--accent, #3d8bfd) 10%, #fff));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--lms-accent, var(--accent, #3d8bfd)) 28%, transparent);
}

.course-outline__lesson-link--disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.course-outline__lesson-order {
  font-size: 11px;
  font-weight: 700;
  color: var(--lms-muted, #5a7180);
}

.course-outline__lesson-title {
  font-size: 13px;
  font-weight: 650;
  color: var(--lms-heading, #102736);
}

.course-outline__lesson-status {
  font-size: 11px;
  color: var(--lms-muted, #5a7180);
  text-align: right;
}

.course-outline__module-actions {
  margin-top: 10px;
}

.course-outline__continue-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-radius: 10px;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--lms-accent, var(--accent, #3d8bfd)), var(--lms-accent-hi, #5aa7ff));
}

.course-outline-drawer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  justify-content: flex-end;
  background: rgba(8, 16, 24, 0.2);
}

.course-outline-drawer__panel {
  width: min(96vw, 408px);
  height: 100%;
  overflow: auto;
  padding: 16px 16px 20px;
  background: var(--lms-card-bg, #fff);
  color: var(--lms-text, #2a3f4d);
  box-shadow: -16px 0 40px rgba(0, 0, 0, 0.14);
  border-left: 1px solid var(--lms-card-border, #d5e1e8);
}

.course-outline-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.course-outline-drawer__head h2 {
  margin: 0;
  font-size: 18px;
  color: var(--lms-heading, #102736);
}

.course-outline-drawer__close {
  min-width: 44px;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--lms-card-border, #d5e1e8) 100%, transparent);
  background: var(--lms-card-bg-soft, #f5f8fb);
  color: var(--lms-heading, #102736);
  font-size: 18px;
  cursor: pointer;
}

.course-lesson-page .course-lesson-header,
.course-lesson-page .course-card {
  border-radius: 16px;
  border: 1px solid var(--lms-card-border, #d5e1e8);
  background: var(--lms-card-bg, #fff);
  box-shadow: 0 8px 22px rgba(23, 61, 80, 0.06);
}

.course-lesson-page .course-lesson-header {
  padding: 18px 20px;
}

.course-lesson-page .course-card {
  padding: 18px 20px;
}

.course-lesson-page .course-card h2,
.course-lesson-page .course-lesson-header h1 {
  color: var(--lms-heading, #102736);
}

.course-lesson-page .course-card p,
.course-lesson-page .course-card li,
.course-lesson-page .course-card .course-system-meta {
  color: var(--lms-text, #2a3f4d);
}

.course-lesson-page .course-video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--lms-card-border, #d5e1e8);
}

.course-lesson-page .course-video-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.course-lesson-page .course-video-placeholder {
  min-height: 260px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px dashed var(--lms-card-border, #d5e1e8);
  background: var(--lms-card-bg-soft, #f5f8fb);
  color: var(--lms-muted, #5a7180);
}

@media (max-width: 720px) {
  .course-lesson-nav {
    padding: 12px;
    position: static;
    backdrop-filter: none;
  }

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

  .course-outline-drawer {
    align-items: flex-end;
  }

  .course-outline-drawer__panel {
    width: min(96vw, 96vw);
    max-width: 96vw;
    height: min(88vh, 720px);
    border-radius: 18px 18px 0 0;
    border-left: none;
    border-top: 1px solid var(--lms-card-border, #d5e1e8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-outline-drawer,
  .course-outline-drawer__panel {
    transition: none;
  }
}