/* Sidebar: khung xanh lá, logo, ô tìm kiếm, menu nhiều cấp */
.main-sidebar {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 32px 0 10px;
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: linear-gradient(180deg, #0b6f02 0%, #13801a 45%, rgba(26, 135, 36, 0.86) 100%);
    box-shadow: 0 24px 60px rgba(5, 50, 15, 0.3);
}

.image-logo {
    display: flex;
    flex-shrink: 0;
    justify-content: center;
    margin-bottom: 18px;
    padding: 0 20px;
}

/* Ảnh logo có class w-100 nên chỉnh kích thước qua thẻ a */
.image-logo a {
    display: block;
    width: 62%;
    max-width: 240px;
}

/* Ô tìm kiếm: kết quả đè lên menu nên .searchInput nằm absolute */
.box-form-search {
    position: relative;
    min-height: 42px;
}

.box-form-search.menu-search {
    flex-shrink: 0;
    z-index: 30;
    margin: 0 18px 8px;
}

.searchInput {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    background: #fff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.2s ease;
}

.searchInput:focus-within,
.searchInput.active {
    box-shadow: 0 0 0 3px rgba(248, 230, 79, 0.55), 0 10px 24px rgba(0, 0, 0, 0.22);
}

.searchInput input {
    width: 100%;
    height: 42px;
    padding: 0 42px 0 16px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--ink);
    caret-color: var(--ink);
    font-family: var(--font);
    font-size: 15px;
}

.searchInput .icon {
    position: absolute;
    top: 11px;
    right: 14px;
    display: flex;
    pointer-events: none;
}

.icon-svg-search svg {
    width: 19px;
    height: auto;
}

.searchInput .icon svg path {
    fill: #a3aea6;
}

.searchInput.active .icon svg path,
.searchInput:focus-within .icon svg path {
    fill: var(--brand);
}

.searchInput .resultBox {
    max-height: 0;
    padding: 0;
    overflow-y: auto;
    opacity: 0;
    pointer-events: none;
}

.searchInput.active .resultBox {
    max-height: 320px;
    padding: 6px;
    border-top: 1px solid var(--line);
    opacity: 1;
    pointer-events: auto;
}

.resultBox li {
    display: none;
    list-style: none;
    border-radius: 10px;
}

.searchInput.active .resultBox li {
    display: block;
}

.resultBox li:hover {
    background: var(--brand-light);
}

.resultBox li a {
    display: block;
    padding: 9px 12px;
    color: var(--ink);
    font-size: 15px;
    line-height: 1.4;
}

/* Menu: mép trên/dưới mờ dần để báo còn nội dung khi cuộn */
.nav-sidebar {
    --menu-anim-duration: 0.3s;
    --menu-anim-ease: cubic-bezier(0.4, 0, 0.2, 1);
    flex: 1 1 auto;
    min-height: 0;
    padding: 10px 8px 0 14px;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 10px, #000 calc(100% - 28px), transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0, #000 10px, #000 calc(100% - 28px), transparent 100%);
}

.nav-sidebar::-webkit-scrollbar {
    width: 4px;
}

.nav-sidebar::-webkit-scrollbar-track {
    margin: 12px 0;
    background: transparent;
}

.nav-sidebar::-webkit-scrollbar-thumb {
    border-radius: 4px;
    background: rgba(248, 230, 79, 0.45);
}

.nav-sidebar:hover::-webkit-scrollbar-thumb {
    background: rgba(248, 230, 79, 0.8);
}

/* Firefox không có ::-webkit-scrollbar */
@supports not selector(::-webkit-scrollbar) {
    .nav-sidebar {
        scrollbar-width: thin;
        scrollbar-color: rgba(248, 230, 79, 0.6) transparent;
    }
}

ul.list-item-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 0;
    padding: 0 0 28px;
}

.item-link-nav {
    position: relative;
    list-style: none;
    border-radius: 16px;
    transition: background-color var(--menu-anim-duration) var(--menu-anim-ease),
        padding-bottom var(--menu-anim-duration) var(--menu-anim-ease);
}

/* Nhóm đang mở: nền nhạt bao cả mục cha và các mục con */
.item-link-nav:has(> .link-menu-sub > .menu-item-row > .nav-link.click_shows) {
    padding-bottom: 6px;
    background: rgba(255, 255, 255, 0.09);
}

.link-menu-sub,
.menu-item-row {
    position: relative;
}

/* Mục con thụt vào kèm đường dẫn dọc màu vàng; mỗi mục tự vẽ đoạn của mình nên nối liền nhau */
.collapse-inner > .link-menu-sub {
    padding-left: 16px;
}

.collapse-inner > .link-menu-sub::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 8px;
    width: 2px;
    border-radius: 2px;
    background: rgba(248, 230, 79, 0.4);
}

/* Đóng/mở bằng grid-template-rows 0fr ↔ 1fr để trượt mượt mà không cần đo chiều cao.
   Selector có .nav-sidebar để thắng `.collapse:not(.show) { display: none }` của Bootstrap. */
.nav-sidebar .collapse {
    display: grid;
    grid-template-rows: 0fr;
    visibility: hidden;
    transition: grid-template-rows var(--menu-anim-duration) var(--menu-anim-ease),
        visibility 0s linear var(--menu-anim-duration);
}

.nav-sidebar .collapse.shows {
    grid-template-rows: 1fr;
    visibility: inherit;
    transition: grid-template-rows var(--menu-anim-duration) var(--menu-anim-ease);
}

.collapse-inner {
    min-height: 0;
    overflow: hidden;
}

.item-link-nav .item-link {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 42px 10px 14px;
    border-radius: 14px;
    color: #fff;
    font-family: var(--font);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.35;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.item-link-nav .collapse .item-link {
    min-height: 38px;
    padding: 8px 40px 8px 12px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 15px;
    font-weight: 400;
}

.item-link-nav .item-link:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.item-link-nav .item-link.active {
    background: #fff;
    color: var(--brand);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

/* Mục con nằm trong khối overflow: hidden nên bỏ bóng để không bị cắt */
.item-link-nav .collapse .item-link.active {
    box-shadow: none;
}

/* Nút mở/đóng menu con (span.nav-link trùng tên class Bootstrap nên reset lại cả màu khi hover) */
.nav-sidebar .nav-link,
.nav-sidebar .nav-link:hover,
.nav-sidebar .nav-link:focus {
    color: #fff;
}

.nav-link {
    position: absolute;
    top: 0;
    right: 4px;
    bottom: 0;
    z-index: 2;
    width: 32px;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0;
    cursor: pointer;
}

.nav-link::before {
    content: "";
    position: absolute;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.nav-link:hover::before {
    background-color: rgba(255, 255, 255, 0.16);
}

/* Mũi tên vẽ bằng border nên đổi màu theo currentColor */
.nav-link::after {
    content: "";
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform var(--menu-anim-duration) var(--menu-anim-ease);
}

.nav-link.click_shows::after {
    transform: translateY(2px) rotate(-135deg);
}

.nav-sidebar .item-link.active + .nav-link {
    color: var(--brand);
}

.item-link.active + .nav-link:hover::before {
    background-color: rgba(12, 145, 66, 0.12);
}

@media (prefers-reduced-motion: reduce) {
    .nav-sidebar {
        --menu-anim-duration: 0s;
    }
}

@media (max-width: 1024px) {
    .main-sidebar {
        padding: 18px 0 10px;
        border: none;
        border-radius: 0 24px 24px 0;
        background: linear-gradient(180deg, #0b6f02 0%, #1d8c28 100%);
        box-shadow: 12px 0 40px rgba(0, 30, 8, 0.35);
    }

    .image-logo a {
        width: 52%;
        max-width: 200px;
    }
}

@media (max-width: 576px) {
    .main-sidebar {
        border-radius: 0;
    }
}