/* Courses — catalog and per-course pages */

.course-single {
  padding: 2.5rem 0 4rem;
}

.course-single .module-breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}
.course-single .module-breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
}
.course-single .module-breadcrumb .sep {
  margin: 0 0.5rem;
}

.course-header {
  margin-bottom: 2.5rem;
}
.course-header .lead {
  font-size: 1.15rem;
  color: var(--text-light);
  margin: 0.5rem 0 1rem;
}
.course-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  color: var(--text-light);
  font-size: 0.95rem;
}

.course-gate[hidden] {
  display: none;
}

.course-toolbar {
  margin-bottom: 1.5rem;
}
.course-search {
  width: 100%;
  max-width: 420px;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

.course-files {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.course-file[hidden] {
  display: none;
}

.course-file__open {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card-bg, #fff);
  border: 1px solid var(--border-color, #e3e3e3);
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: border-color 0.15s ease, transform 0.05s ease;
}
.course-file__open:hover {
  border-color: var(--primary-color);
}
.course-file__open:active {
  transform: translateY(1px);
}
.course-file__open[aria-busy="true"] {
  opacity: 0.6;
  cursor: wait;
}

.course-file__kind {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  background: var(--tag-bg, #eef2ff);
  color: var(--tag-fg, #4338ca);
  white-space: nowrap;
}
.course-file[data-kind="deck"] .course-file__kind   { background: #fef3c7; color: #92400e; }
.course-file[data-kind="handout"] .course-file__kind { background: #dcfce7; color: #166534; }

.course-file__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}
.course-file__title {
  font-weight: 600;
}
.course-file__desc {
  font-size: 0.9rem;
  color: var(--text-light);
}
.course-file__arrow {
  color: var(--text-light);
  font-size: 1.1rem;
}

.course-file__status {
  margin: 0.4rem 0 0;
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  border-radius: 6px;
  background: #fef2f2;
  color: #991b1b;
}
.course-file__status[data-kind="info"] {
  background: #eff6ff;
  color: #1e40af;
}

.course-empty {
  color: var(--text-light);
  font-style: italic;
}