/* ============================================================================
   PAGE STYLESHEET: Courses & Programs (public/css/courses.css)
   ============================================================================ */

/* --- Program Category Filter Pills ----------------------- */
.course-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  overflow-x: auto;
  padding: 0.5rem 0.25rem;
}

.course-filter-chip {
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border-solid);
  transition: all 0.25s ease;
  cursor: pointer;
}

.course-filter-chip:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.course-filter-chip.active {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(43, 120, 197, 0.3);
}

/* --- Course Card & Syllabus Grid -------------------------- */
.course-card {
  border: 1px solid rgba(26, 123, 204, 0.15);
  border-radius: 1.5rem;
  background: var(--surface);
  padding: 1.75rem;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.dark .course-card {
  background: rgba(15, 31, 51, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(17, 82, 138, 0.16);
  border-color: rgba(43, 120, 197, 0.35);
}

.course-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(43, 120, 197, 0.1);
  color: var(--primary);
  font-weight: 800;
  border-radius: 9999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dark .course-badge {
  background: rgba(43, 120, 197, 0.25);
  color: #60A5FA;
}

.subject-pill {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 0.5rem;
  background: rgba(243, 156, 18, 0.1);
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 0.35rem;
  margin-bottom: 0.35rem;
}