.page-title {
  margin-bottom: 25px;
  letter-spacing: 1px;
}

.date-badge {
  background: #dc3545;
  color: #fff;
  border-radius: 8px;
  text-align: center;
  padding: 10px 8px;
  font-weight: bold;
  width: 65px;
  box-shadow: 0 2px 8px rgba(220,53,69,0.3);
}

.date-badge .day {
  font-size: 1.2rem;
  display: block;
  line-height: 1;
}

.date-badge .month {
  font-size: 0.75rem;
  display: block;
  margin-top: 2px;
  opacity: 0.9;
}

.featured-card {
  border: none;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.featured-card:hover {
  transform: translateY(-5px);
}

.featured-card img {
  height: 300px;
  object-fit: cover;
  border-radius: 12px 12px 0 0;
}

.featured-card .card-body {
  padding: 20px;
}

.featured-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  line-height: 1.3;
  margin-bottom: 10px;
}

.featured-description {
  color: #666;
  line-height: 1.5;
  font-size: 0.95rem;
}

.sidebar-item {
  display: flex;
  margin-bottom: 20px;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 10px;
  transition: background-color 0.2s ease;
  border-left: 4px solid #dc3545;
}

.sidebar-item:hover {
  background: #e9ecef;
}

.sidebar-item img {
  width: 150px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
  transition: transform 0.3s ease; /* thêm hiệu ứng zoom */
}

.sidebar-item:hover img {
  transform: scale(1.05);
}

.sidebar-content {
  margin-left: 15px;
  flex: 1;
}

.sidebar-date {
  color: #999;
  font-size: 0.8rem;
  margin-bottom: 5px;
}

.sidebar-title {
  font-weight: 600;
  color: #333;
  font-size: 0.95rem;
  line-height: 1.3;
  margin-bottom: 8px;
}

.sidebar-excerpt {
  color: #666;
  font-size: 0.85rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.view-more-btn {
  background: linear-gradient(135deg, #dc3545, #c82333);
  border: none;
  color: white;
  padding: 12px 30px;
  border-radius: 25px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(220,53,69,0.3);
}

.view-more-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(220,53,69,0.4);
  background: linear-gradient(135deg, #c82333, #bd2130);
}

.box-shadow-btn{
    box-shadow: 0 0px 2px 0 rgba(60, 64, 67, 0.1), 0 0px 6px 0px rgba(60, 64, 67, 0.25);
}

@media (max-width: 768px) {
  .main-container {
    padding: 20px;
    margin: 10px;
  }
  
  .featured-card img {
    height: 200px;
  }
  
  .sidebar-item {
    padding: 12px;
  }
  
  .sidebar-item img {
    width: 70px;
    height: 55px;
  }
}