@media (min-width: 1200px) {
    .container, .container-lg, .container-md, .container-sm, .container-xl {
        max-width: 95vw;
    }
}
@media (min-width: 1200px) {
    .container {
        width: 95vw;
    }
}
.loading:before, .loading:after{
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    border-radius: 100%;
    border: 10px solid transparent;
    border-top-color: #3498db;
}

.loading:before{
    z-index: 100;
    animation: spin 1s infinite;
}

.loading:after{
    border: 10px solid #ccc;
}

@keyframes spin{
    0%{
        -webkit-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }

    100%{
        -webkit-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

  /* Tạo lớp phủ toàn màn hình */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* Nền mờ */
    z-index: 9999; /* Đảm bảo luôn nằm trên cùng */
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none; /* Ngăn click chuột */
}
ul.pagination {
    text-align: center;
    margin: 5px auto;
    width: 100%;
    display: inline-block;
}
.pagination {
    display: inline-block;
    padding-left: 0;
    margin: 20px 0;
    border-radius: 4px;
}
.pagination>li {
    display: inline;
}
.pagination>.active>a, .pagination>.active>a:focus, .pagination>.active>a:hover, .pagination>.active>span, .pagination>.active>span:focus, .pagination>.active>span:hover {
    z-index: 3;
    color: #fff;
    cursor: default;
    background-color: #337ab7;
    border-color: #337ab7;
}
.pagination>li:first-child>a, .pagination>li:first-child>span {
    margin-left: 0;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}
.pagination>li>a, .pagination>li>span {
    position: relative;
    float: left;
    padding: 6px 12px;
    margin-left: -1px;
    line-height: 1.42857143;
    color: #337ab7;
    text-decoration: none;
    background: #fafafa;
    border: 1px solid #ddd;
}
.justify-content-end {
    margin: 5px auto;
}
.m-b-15 {
    margin-bottom: 15px;
}
.m-l-10 {
    margin-left: 10px;
}
.modal-content {
    padding: 0 20px;
}
span.text-error {
    display: none;
    color: red;
}
.navbar-nav-right {
    float: right;
}
.toast {
    font-size: 1em;
}
.invalid-feedback {
    display: block;
}
.btn-sm {
    margin: 2px auto;
}
.btn-action {
    margin: 2px 5px;
}
.card-header {
    font-size: 1.3em;
}