.button {
        --background: white;
    --text: black;
    --cart: black;
    --tick: white;
    position: relative;
    border: none;
    background: none;
    padding: 8px 28px;
    border-radius: 8px;
    -webkit-appearance: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    overflow: hidden;
    cursor: pointer;
    text-align: center;
    min-width: 144px;
    color: var(--text);
    background: var(--background);
    transform: scale(var(--scale, 1));
    transition: transform .4s cubic-bezier(.36, 1.01, .32, 1.27);
    border: 2px solid;
    &:active {
        --scale: .95;
    }
    span {
        font-size: 14px;
        font-weight: 500;
        display: block;
        position: relative;
        padding-left: 24px;
        margin-left: -8px;
        line-height: 26px;
        transform: translateY(var(--span-y, 0));
        transition: transform .7s ease;
        &:before,
        &:after {
            content: '';
            width: var(--w, 2px);
            height: var(--h, 14px);
            border-radius: 1px;
            position: absolute;
            left: var(--l, 8px);
            top: var(--t, 6px);
            background: currentColor;
            transform: scale(.75) rotate(var(--icon-r, 0deg)) translateY(var(--icon-y, 0));
            transition: transform .65s ease .05s;
        }
        &:after {
            --w: 14px;
            --h: 2px;
            --l: 2px;
            --t: 12px;
        }
    }
    .cart {
        position: absolute;
        left: 50%;
        top: 50%;
        margin: -13px 0 0 -18px;
        transform-origin: 12px 23px;
        transform: translateX(-120px) rotate(-18deg);
        &:before,
        &:after {
            content: '';
            position: absolute;
        }
        &:before {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            box-shadow: inset 0 0 0 2px var(--cart);
            bottom: 0;
            left: 9px;
            filter: drop-shadow(11px 0 0 var(--cart));
        }
        &:after {
            width: 16px;
            height: 9px;
            background: var(--cart);
            left: 9px;
            bottom: 7px;
            transform-origin: 50% 100%;
            transform: perspective(4px) rotateX(-6deg) scaleY(var(--fill, 0));
            transition: transform 1.2s ease var(--fill-d);
        }
        svg {
            z-index: 1;
            width: 36px;
            height: 26px;
            display: block;
            position: relative;
            fill: none;
            stroke: var(--cart);
            stroke-width: 2px;
            stroke-linecap: round;
            stroke-linejoin: round;
            polyline {
                &:last-child {
                    stroke: var(--tick);
                    stroke-dasharray: 10px;
                    stroke-dashoffset: var(--offset, 10px);
                    transition: stroke-dashoffset .4s ease var(--offset-d);
                }
            }
        }
    }
    &.loading {
        --scale: .95;
        --span-y: -32px;
        --icon-r: 180deg;
        --fill: 1;
        --fill-d: .8s;
        --offset: 0;
        --offset-d: 1.73s;
        .cart {
            animation: cart 3.4s linear forwards .2s;
        }
    }
}

@keyframes cart {
    12.5% {
        transform: translateX(-60px) rotate(-18deg);
    }
    25%,
    45%,
    55%,
    75% {
        transform: none;
    }
    50% {
        transform: scale(.9);
    }
    44%,
    56% {
        transform-origin: 12px 23px;
    }
    45%,
    55% {
        transform-origin: 50% 50%;
    }
    87.5% {
        transform: translateX(70px) rotate(-18deg);
    }
    100% {
        transform: translateX(140px) rotate(-18deg);
    }
}

/* Out of stock: red button, disabled */
.button.btn-out-of-stock {
    background: #dc3545 !important;
    border: 2px solid #dc3545 !important;
    color: #fff !important;
    cursor: not-allowed;
    opacity: 1;
}
.button.btn-out-of-stock span:before,
.button.btn-out-of-stock span:after {
    display: none;
}