.sidebar-navigation {
    position: fixed;
    left: 0;
    top: 72px;
    height: calc(100vh - 72px);
    border-right: 1px solid #e5e7eb;
    overflow: hidden;
    z-index: 999;
    transition: transform 0.3s ease;
    background-color: #eef4ff;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.sub-page-sb {
    top: 0px !important;
    height: 100vh;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px 0 12px 0;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px 8px 12px;
    margin: 0 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 8px;
    background: none;
    border: none;
    color: #6b7280;
    text-align: left;
    width: calc(100% - 24px);

}

.menu-item:hover {
    background-color: #e9f4ff;
    color: #1f2937;
    transform: translateX(4px);
}

.menu-item.active {
    color: #0b66c3;
    background-color: #eff6ff;
}

.menu-item.expandable {
    justify-content: space-between;
}

.menu-item-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-icon {
    font-size: 16px;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

.expand-icon {
    font-size: 14px;
    transition: transform 0.2s ease;
}

.menu-section-title {
    color: #9ca3af;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 16px 24px 8px 24px;
}

.submenu {
    border-left: 2px solid #e5e7eb;
    padding-left: 12px;
    margin: 4px 0 0 36px;
    display: none;
}

.submenu.open {
    display: block;
}

.submenu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 6px;
    margin-bottom: 2px;
    background: none;
    border: none;
    color: #6b7280;
    text-align: left;
    width: 100%;
}

.submenu-item:hover {
    background-color: #f3f4f6;
    color: #1f2937;
    transform: translateX(2px);
}

.submenu-item.active {
    color: #0b66c3;
    background-color: #eff6ff;
}

.sidebar-external-links {
    flex-shrink: 0;
    padding: 12px;
    border-top: 1px solid #e5e7eb;
}

.sidebar-external-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    margin-bottom: 6px;
    font-size: 11px;
    font-weight: 500;
    color: #6b7280;
    background-color: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.sidebar-external-btn:hover {
    background-color: #f9fafb;
    color: #1f2937;
    border-color: #d1d5db;
}

.sidebar-external-btn.active {
    background-color: #eff6ff;
    color: #0b66c3;
    border-color: #bfdbfe;
}

.sidebar-header {
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
}

@media (max-width: 991px) {
    .sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px;
    }
}