button[disabled] {
    cursor: auto;
    background-color: transparent;
    color: dimgray;
    border: none;
    cursor: default;
    transition: color 0.3s;
    pointer-events: none;
}

.btn.no-outline
.btn.no-outline:focus,
.btn.no-outline:active,
.btn.no-outline:visited,
.btn.no-outline:hover,
.btn.no-outline:target,
.btn.no-outline:focus-visible {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}