body {
  font-family: Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
}

.header {
  background: #011F5B; /* Penn Navy Blue */
  color: white;
  padding: 15px;
  text-align: center;
}

.search {
  display: flex;
  flex-direction: column;
  padding: 10px;
  background: #fff;
}

.search input {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin-bottom: 10px;
}

.search .filter {
  padding: 10px;
  border: none;
  background: #ddd;
  border-radius: 8px;
  cursor: pointer;
}

.course-card {
  background: #fff;
  margin: 12px;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0px 2px 4px rgba(0,0,0,0.1);
}

.course-card h2 {
  margin: 0 0 5px;
  font-size: 18px;
}

.course-card p {
  margin: 5px 0;
  font-size: 14px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: bold;
  margin-top: 8px;
}

.green { background: #2ecc71; color: white; cursor: pointer}
.red { background: #e74c3c; color: white; cursor: pointer}
.yellow { background: #f1c40f; color: white; cursor: pointer}

.waitlist-note {
  font-size: 12px;
  color: #555;
  margin-top: 5px;
}

.waitlist-btn {
  margin-top: 8px;
  padding: 8px 12px;
  border: 1px solid #011F5B;
  border-radius: 8px;
  background: white;
  color: #011F5B;
  cursor: pointer;
}