.course-portal {
  display: grid;
  gap: 1.25rem;
}

.course-hero {
  border: 1px solid #d8d8d8;
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  background: linear-gradient(130deg, #f5f8ff, #f8fbf7 70%, #fff8ef);
}

.course-hero h1 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.25;
}

.course-hero p {
  margin: 0.45rem 0 0 0;
  color: #4f5d62;
}

.course-stats {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.course-stats span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.34rem 0.58rem;
  border: 1px solid #d5e2ea;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  font-size: 0.84rem;
}

.course-module {
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.course-module-head {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid #edf0f2;
  background: #fafbfc;
}

.course-module-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.course-module-head p {
  margin: 0.25rem 0 0;
  font-size: 0.84rem;
  color: #6a737d;
}

.course-list {
  display: grid;
}

.course-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.78rem 1rem;
  text-decoration: none;
  border-bottom: 1px dashed #eceff3;
  transition: background-color 0.18s ease, transform 0.18s ease;
}

.course-item:hover {
  background: #f7fafb;
  transform: translateX(2px);
}

.course-item:last-child {
  border-bottom: 0;
}

.course-item-main {
  min-width: 0;
  display: grid;
  gap: 0.2rem;
}

.course-item-name {
  font-weight: 600;
  line-height: 1.2;
  color: #16222a;
  word-break: break-all;
}

.course-item-path {
  color: #6a737d;
  font-size: 0.8rem;
  line-height: 1.2;
  word-break: break-all;
}

.course-item-meta {
  color: #60707b;
  font-size: 0.78rem;
  line-height: 1.2;
}

.course-item-action {
  flex: none;
  font-size: 0.78rem;
  color: #0a7a66;
  border: 1px solid #b8e4db;
  border-radius: 999px;
  padding: 0.18rem 0.52rem;
  background: #effcf8;
}

.course-empty {
  padding: 1rem;
  color: #76848f;
}

@media (max-width: 760px) {
  .course-item {
    flex-direction: column;
    align-items: flex-start;
  }
}