/* Container chính */
.container {
    margin-top: 50px;
    margin-bottom: 50px;
}

/* Panel styling */
.panel {
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.panel-default {
    border: 1px solid #ddd;
}

.panel-heading {
    background-color: #f5f5f5;
    border-bottom: 1px solid #ddd;
    padding: 15px;
    border-top-left-radius: 3px;
    border-top-right-radius: 3px;
}

.panel-title {
    color: #333;
    font-size: 18px;
    font-weight: 500;
    margin: 0;
}

.panel-body {
    padding: 20px;
}


.form-horizontal .control-label {
    text-align: left;
    margin-bottom: 5px;
    padding-top: 7px;
}

.form-control {
    width: calc(100% - 24px);
    display: block;
    height: 34px;
    padding: 6px 12px;
    font-size: 14px;
    line-height: 1.42857143;
    color: #555;
    background-color: #fff;
    background-image: none;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
    transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
}

    .form-control:focus {
        border-color: #66afe9;
        outline: 0;
        box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(102, 175, 233, 0.6);
    }

/* Button styling */


.btn[disabled] {
    cursor: not-allowed;
    filter: alpha(opacity=65);
    opacity: 0.65;
}

/* Alert styling */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-danger {
    color: #a94442;
    background-color: #f2dede;
    border-color: #ebccd1;
}

.alert-success {
    color: #3c763d;
    background-color: #dff0d8;
    border-color: #d6e9c6;
}

.text-info {
    color: #31708f;
}

.text-center {
    text-align: center;
}


.col-md-8 {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    gap: 5px;
}


.form-group {
    display: flex;
    flex-direction: column;
}
/* Spinner animation */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.fa-spinner {
    display: inline-block;
    animation: spin 2s infinite linear;
}

.fa-spin {
    animation: spin 2s infinite linear;
}