.modal {
    display: none;
    position: fixed;
    z-index: 1050;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal.fade .modal-dialog {
    transform: translate(0, -25%);
    transition: transform 0.3s ease-out;
}

.modal.show .modal-dialog {
    transform: translate(0, 0);
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: 10px;
    max-width: 500px;
    margin: 1.75rem auto;
}

.modal-content {
    position: relative;
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 3px 9px rgba(0,0,0,.5);
    background-clip: padding-box;
    outline: 0;
}

.modal-header {
    padding: 15px;
    border-bottom: 1px solid #e5e5e5;
}

.modal-title {
    margin: 0;
    line-height: 1.42857143;
}

.modal-body {
    position: relative;
    padding: 15px;
}

.modal-footer {
    padding: 15px;
    text-align: right;
    border-top: 1px solid #e5e5e5;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}