.category-sidebar {
    width: 240px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 15px 0;
    flex-shrink: 0;
}

.sidebar-title {
    padding: 0 20px 10px;
    font-weight: 700;
    font-size: 16px;
    border-bottom: 1px solid #f3f4f6;
    margin-bottom: 10px;
    color: var(--tech-blue);
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-item {
    padding: 8px 20px;
    font-size: 14px;
    color: #4b5563;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background 0.2s;
}

.category-item:hover {
    background: #f9fafb;
    color: var(--tech-blue);
}

.category-item i {
    font-size: 12px;
    color: #9ca3af;
}

@media (max-width: 1024px) {
    .category-sidebar {
        display: none;
    }
}