.activity-header {
  position: relative;
  height: 400px;
  overflow: hidden;
}

.activity-header-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.activity-header-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
}

.activity-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--section-padding);
}

.activity-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.activity-description {
  border: 1px solid #eee;
  border-radius: 4px;
  padding: 2rem;
}

.activity-description h2 {
  color: var(--primary-blue);
  margin-bottom: 1.5rem;
}

.activity-description p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.activity-sidebar {
  border: 1px solid #eee;
  border-radius: 4px;
  padding: 2rem;
}

.activity-info {
  margin-bottom: 2rem;
}

.activity-info h3 {
  color: var(--primary-orange);
  margin-bottom: 1rem;
}

.info-list {
  list-style: none;
}

.info-list li {
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.activity-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.activity-gallery img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.3s;
}

.activity-gallery img:hover {
  transform: scale(1.05);
}

.enroll-btn {
  display: inline-block;
  background: var(--primary-blue);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.3s;
  width: 100%;
  text-align: center;
  margin-top: 2rem;
}

.enroll-btn:hover {
  transform: translateY(-3px);
}

@media (max-width: 768px) {
  .activity-grid {
    grid-template-columns: 1fr;
  }

  .activity-header {
    height: 300px;
  }
}