.filter-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 2rem auto 0;
    max-width: calc(100% - 10%);
}

.filter-title {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 1.2rem;
}

.categories-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.category-item {
    display: flex;
    align-items: center;
    background: white;
    padding: 8px 15px;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: 1px solid #ddd;
}

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

.category-item input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

.category-item label {
    cursor: pointer;
    margin-bottom: 0;
}

.category-item.active {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

.content-item {
    transition: all 0.3s ease;
}