.sidebar {
    padding: 10px;
    transition: transform 0.3s ease;
    position: relative;
}

.close-sidebar {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
}

.filter {
    margin-bottom: 20px;
}

.filter h3 {
    margin-bottom: 10px;
}

.filter-options label {
    display: block;
    margin: 5px 0;
}

/* Category Menu */
.category-menu ul {
    list-style: none;
}

.category-menu li {
    margin: 10px 0;
}

.category-item {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.submenu {
    display: none;
    padding-left: 20px;
}

.submenu li {
    margin: 5px 0;
}

.arrow {
    transition: transform 0.3s ease;
}

.arrow.active {
    transform: rotate(90deg);
}

/* Mobile Menu Button */
.mobile-menu-button {
    display: none;
    background: #333;
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
    margin-bottom: 10px;
}

.mobile-product-button {
    display: none;
    background: #333;
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-button {
        display: block;
    }

    .mobile-product-button {
        display: block;
    }

    .sidebar {
        display: none;
        position: fixed;
        top: 0;
        left: -250px;
        height: 100vh;
        z-index: 1000;
        background: #f4f4f4;
    }

    .sidebar.active {
        left: 0;
    }

    .close-sidebar {
        display: block;
    }

    .content {
        margin-left: 0;
    }
}


/* -- --*/
/* Menu danh mục chính */
.category-menu {
    background-color: #f8f9f7;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px;
    border: 1px solid #e9ecef;
}

.category-menu ul {
    padding-left: 0;
}

/* Tiêu đề danh mục */
.category-menu > ul > li > a {
    display: block;
    padding: 12px 15px;
    color: #2c3e50;
    text-decoration: none;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    border-left: 4px solid transparent;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.category-menu > ul > li > a:hover {
    background-color: #f1f8e9;
    border-left-color: #8bc34a;
    color: #558b2f;
}

.category-menu > ul > li > a.active {
    background-color: #f1f8e9;
    border-left-color: #8bc34a;
    color: #558b2f;
}

/* Icon mũi tên */
.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-item .arrow {
    font-size: 12px;
    transition: transform 0.3s ease;
    color: #7d8a96;
}

.category-item .arrow.rotate {
    transform: rotate(90deg);
}

/* Submenu */
.submenu {
    padding: 5px 0 5px 20px;
    margin-top: 5px;
    border-left: 1px dashed #dce4da;
    margin-left: 15px;
}

.submenu li {
    margin-bottom: 8px;
}

.submenu li:last-child {
    margin-bottom: 0;
}

.submenu li a {
    display: block;
    padding: 8px 12px;
    color: #546e7a;
    text-decoration: none;
    font-size: 14px;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.submenu li a:before {
    content: "•";
    position: absolute;
    left: -5px;
    color: #8bc34a;
    font-size: 18px;
    line-height: 0;
    top: 50%;
}

.submenu li a:hover {
    color: #558b2f;
    background-color: rgba(139, 195, 74, 0.08);
    padding-left: 15px;
}

.submenu li a.active {
    color: #558b2f;
    background-color: rgba(139, 195, 74, 0.12);
    font-weight: 500;
}

.category-menu > ul > li > a .category-item:before {
    font-family: "Font Awesome 5 Free";
    margin-right: 10px;
    font-weight: 900;
    color: #8bc34a;
    width: 20px;
    display: inline-block;
}

.category-menu > ul > li:nth-child(1) > a .category-item:before {
    content: "\f06c"; /* Icon cây */
}

.category-menu > ul > li:nth-child(2) > a .category-item:before {
    content: "\f787"; /* Icon củ cải */
}

.category-menu > ul > li:nth-child(3) > a .category-item:before {
    content: "\f5d7"; /* Icon rau */
}

.category-menu > ul > li:nth-child(4) > a .category-item:before {
    content: "\f4d8"; /* Icon mầm */
}

.category-menu > ul > li:nth-child(5) > a .category-item:before {
    content: "\f2e7"; /* Icon gia vị */
}

.category-menu > ul > li:nth-child(6) > a .category-item:before {
    content: "\f70e"; /* Icon hoa */
}

.category-menu > ul > li:nth-child(7) > a .category-item:before {
    content: "\f4d8"; /* Icon cỏ */
}

.category-menu > ul > li {
    transition: transform 0.2s ease;
}

.category-menu > ul > li:hover {
    transform: translateX(3px);
}

.category-menu:before {
    content: "DANH MỤC SẢN PHẨM";
    display: block;
    font-weight: 700;
    font-size: 16px;
    color: #2c3e50;
    padding-bottom: 12px;
    margin-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
    text-align: center;
    letter-spacing: 0.5px;
}