/* Page Header */
.page-header {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
    url("https://via.placeholder.com/1920x400");
  background-size: cover;
  background-position: center;
  color: white;
  padding: 80px 0;
  margin-bottom: 40px;
}

.page-header h1 {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Exhibition Cards */
.current-exhibitions .card,
.upcoming-exhibitions .card {
  border: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.current-exhibitions .card:hover,
.upcoming-exhibitions .card:hover {
  transform: translateY(-5px);
}

.current-exhibitions .card-img-top,
.upcoming-exhibitions .card-img-top {
  height: 300px;
  object-fit: cover;
}

/* Section Headers */
section h2 {
  color: var(--primary-color);
  position: relative;
  padding-bottom: 15px;
  margin-bottom: 30px;
}

section h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .page-header {
    padding: 40px 0;
    text-align: center;
  }

  .current-exhibitions .card,
  .upcoming-exhibitions .card {
    margin-bottom: 30px;
  }
}