.btn-grad {
    opacity: 1;
    --bs-btn-color: #fff;
    --bs-btn-bg: #000;
    --bs-btn-border-color: #000;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: linear-gradient(217deg, rgba(255, 0, 0, 0.8), rgba(255, 0, 0, 0) 70.71%), linear-gradient(127deg, rgba(0, 0, 255, 0.8), rgba(0, 0, 255, 0) 70.71%), linear-gradient(336deg, rgba(0, 255, 0, 0.8), rgba(0, 255, 0, 0) 70.71%);
    --bs-btn-hover-border-color: #000;
    --bs-btn-focus-shadow-rgb: 49, 132, 253;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: linear-gradient(217deg, rgba(255, 0, 0, 0.8), rgba(255, 0, 0, 0) 70.71%), linear-gradient(127deg, rgba(0, 0, 255, 0.8), rgba(0, 0, 255, 0) 70.71%), linear-gradient(336deg, rgba(0, 255, 0, 0.8), rgba(0, 255, 0, 0) 70.71%);
    --bs-btn-active-border-color: #000;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: #000;
    --bs-btn-disabled-border-color: #000;
    border: none;
    transition: var(--bs-btn-bg) 0.2s ease-in-out;
}

.btn-grad:hover,
.btn-grad:active,
.btn-grad:focus {
    background-size: 200% 300%;
    -webkit-animation: 10s infinite granimate;
    animation: 10s infinite granimate;
    color: var(--bs-btn-hover-color);
    border-color: var(--bs-btn-hover-border-color);
    background-image: var(--bs-btn-hover-bg);
    transition: var(--bs-btn-bg) 0.2s ease-in-out;
}