/* Course Details */
.course-details {
  padding: 4rem 0;
  background-color: var(--white);
}

.course-details-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 3rem;
}

.course-category {
  background-color: var(--accent-color);
  color: var(--white);
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.course-details-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.course-meta-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

.meta-item {
  display: flex;
  align-items: center;
  color: var(--text-medium);
}

.meta-item i {
  font-size: 1.5rem;
  margin-right: 0.75rem;
  color: var(--primary-color);
}

.course-details-banner {
  width: 100%;
  height: 400px;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: 3rem;
  box-shadow: var(--box-shadow);
}

.course-details-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-details-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.course-description {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
}

.course-description h2 {
  margin-bottom: 1.5rem;
  position: relative;
}

.course-description h2:after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--primary-color);
  margin-top: 0.75rem;
  border-radius: 2px;
}

.course-description p {
  color: var(--text-medium);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.course-objectives {
  margin-top: 2rem;
}

.course-objectives h3 {
  margin-bottom: 1.5rem;
}

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

.objectives-list li {
  margin-bottom: 1rem;
  padding-left: 2rem;
  position: relative;
  color: var(--text-medium);
}

.objectives-list li:before {
  content: "\f058";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 0;
  color: var(--success-color);
}

.course-sidebar {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  position: sticky;
  top: 100px;
}

.course-price {
  text-align: center;
  margin-bottom: 2rem;
}

.course-price .price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.sidebar-item {
  display: flex;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.sidebar-item:last-child {
  border-bottom: none;
}

.sidebar-item i {
  font-size: 1.2rem;
  margin-right: 1rem;
  color: var(--primary-color);
  width: 24px;
  text-align: center;
}

.sidebar-actions {
  margin-top: 2rem;
}

.sidebar-actions .btn {
  display: block;
  width: 100%;
  margin-bottom: 1rem;
}

.sidebar-actions .btn:last-child {
  margin-bottom: 0;
}

/* Related Courses */
.related-courses {
  padding: 4rem 0;
  background-color: var(--background-light);
}

.related-courses h2 {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.related-courses h2:after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

.courses-slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* Course CTA */
.course-cta {
  background: linear-gradient(rgba(30, 136, 229, 0.9), rgba(13, 71, 161, 0.9)), url('https://images.pexels.com/photos/4226146/pexels-photo-4226146.jpeg');
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: 5rem 0;
  text-align: center;
}

.course-cta h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.course-cta p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Loading Animation */
.loading {
  text-align: center;
  padding: 3rem 0;
}

.loading i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.loading p {
  color: var(--text-medium);
}

/* Media Queries */
@media (max-width: 992px) {
  .course-details-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .course-sidebar {
    position: static;
  }
  
  .courses-slider {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .course-details-header h1 {
    font-size: 2rem;
  }
  
  .course-meta-list {
    gap: 1rem;
  }
  
  .course-details-banner {
    height: 300px;
  }
  
  .course-cta h2 {
    font-size: 2rem;
  }
  
  .course-cta p {
    font-size: 1.1rem;
  }
  
  .course-details {
    padding: 3rem 0;
  }
  
  .related-courses {
    padding: 3rem 0;
  }
}

@media (max-width: 576px) {
  .course-details-header h1 {
    font-size: 1.8rem;
  }
  
  .meta-item {
    width: 100%;
    justify-content: center;
  }
  
  .course-details-banner {
    height: 250px;
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: 1rem;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .courses-slider {
    grid-template-columns: 1fr;
  }
}