.sidebar {
    width: 260px;
    min-height: 100vh;
    background: #f9f9f9;
    border-right: 1px solid #eee;
    transition: width 0.3s ease;
    padding: 10px 0;
}

.sidebar .nav-link {
    color: #555;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar .nav-link i {
    font-size: 18px;
    margin-right: 12px;
}

.sidebar .nav-link:hover {
    background-color: #ffe3e3;
    color: #ff5c5c;
}

.sidebar .nav-link.active {
    background-color: #ff5c5c;
    color: #fff;
    border-radius: 6px;
}

.sidebar .nav-link.active i {
    color: #fff;
}

.sidebar.collapsed {
    width: 80px;
}

.sidebar.collapsed .nav-link span {
    display: none;
}

.sidebar.collapsed .logo img {
    height: 30px;
}

.el-table {
    --el-border-color: #0000004a;
}

/* Hoặc tùy chỉnh chi tiết các dòng và ô */
.el-table td,
.el-table th,
.el-table__inner-wrapper,
.el-table__body-wrapper {
    border-color: #0000004a !important;
}

#main .loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#main .loading-overlay .spinner {
    width: 3rem;
    height: 3rem;
    border: 4px solid #fff;
    border-top: 4px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Hiệu ứng xoay */
@keyframes spin {
    0% {
        transform: rotate(0);
    }
    100% {
        transform: rotate(360deg);
    }
}

.simplebar-content {
    padding: 0 !important;
}