.loader {
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid blue;
    border-right: 16px solid green;
    border-bottom: 16px solid red;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

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

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

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

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

.modal-content {
    border-radius: 10px;
    padding: 20px;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

.container-scroller,
.page-body-wrapper,
.content-wrapper {
    height: 100%;
    margin: 0;
    padding: 0;
}

/* Remove extra padding from the form */
form#form1 {
    padding-top: 0 !important;
}

/* Custom Gradient Header */
.custom-header {
    background: linear-gradient(135deg, #4e73df, #1cc88a);
    padding: 1rem 1.25rem;
}

/* Modal content extra polish */
.modal-content {
    border-radius: 1rem !important;
    overflow: hidden;
    transition: transform 0.2s ease-in-out;
}

    .modal-content:hover {
        transform: scale(1.01);
    }

/* Input fields */
.form-control {
    border-radius: 0.6rem;
    border: 1px solid #ced4da;
    transition: all 0.2s ease-in-out;
}

    .form-control:focus {
        border-color: #4e73df;
        box-shadow: 0 0 6px rgba(78, 115, 223, 0.4);
    }

/* Buttons */
.btn {
    transition: all 0.2s ease-in-out;
}

.btn-success:hover {
    background-color: #218838 !important;
    box-shadow: 0 4px 10px rgba(40, 167, 69, 0.3);
}

.btn-outline-secondary:hover {
    background-color: #6c757d !important;
    color: #fff !important;
}