.custom-button {
    display: flex;
    margin-bottom: 15px;
}

.custom-button.align-left   { justify-content: flex-start;}
.custom-button.align-center { justify-content: center;}
.custom-button.align-right  { justify-content: flex-end;}

.custom-button .button-link {
    position: relative;
    z-index: 1; 
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    letter-spacing: 1.6px;
    color: #FFF;
    text-decoration: none;
    background: #000;
    text-transform: uppercase;
}

.custom-button .button-link::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgb(0,59,77);
    background: -webkit-linear-gradient(left, rgba(0,59,77,1) 0%, rgba(0,116,129,1) 100%);
    background: -o-linear-gradient(left, rgba(0,59,77,1) 0%, rgba(0,116,129,1) 100%);
    background: linear-gradient(to right, rgba(0,59,77,1) 0%, rgba(0,116,129,1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}
.custom-button .button-link:hover{
    color: #FFF;
    text-decoration: none; 
}
.custom-button .button-link:hover::before {opacity: 1;}
.custom-button .button-link:focus {outline: none;}

@media (min-width: 1025px) {
    .custom-button .button-link {
        font-size: 18px;
        letter-spacing: 1.8px;
    }
}