.course-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: white;
  padding: 12px 24px;
  border-radius: 22px;
  border: 1px solid #e0e0e0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  font-weight: bold;
  text-decoration: none;
  font-size: 1.1rem;
  color: #0e1e40;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.course-button:hover {
  background-color: #f0f8ff;
  color: #007bff;
}

.course-button i,
.course-button .python-icon {
  width: 24px;
  height: 24px;
}

.course-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 60px 60px;
  margin-bottom: 2rem;
}

.intro-text {
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
  font-size: 1.15rem;
  line-height: 1.5;
  text-align: center;
}

.section > p {
  margin-bottom: 2.4rem;
  font-size: 1.05rem;
  line-height: 1.6;
  text-align: center;
}

.course-button.disabled {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
  position: relative;
}

.under-construction-icon {
  font-size: 0.9rem;
  margin-left: 6px;
  vertical-align: middle;
}