.pronto-colour-rail {
    position: relative;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    margin: 8px 0 0;
    box-sizing: border-box;
}

.pronto-colour-rail__viewport {
    width: 100%;
    min-width: 0;
    overflow: hidden;
}

.pronto-colour-rail__list {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    justify-content: flex-start;
    justify-content: safe center;
    column-gap: 4px;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin: 0;
    padding: 3px 2px 3px 0;
    list-style: none;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    box-sizing: border-box;
    touch-action: auto;
}

.pronto-colour-rail__list::-webkit-scrollbar { display: none; }
.pronto-colour-rail__item { flex: 0 0 auto; margin: 0; padding: 0; }
.pronto-colour-rail__link {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 0;
    overflow: hidden;
    box-sizing: border-box;
    text-decoration: none;
    user-select: none;
}
/* Paint the border above the image so card hover effects cannot obscure it. */
.pronto-colour-rail__link::after {
    position: absolute;
    z-index: 1;
    inset: 0;
    border: 1px solid #ccc;
    content: '';
    pointer-events: none;
}
.pronto-colour-rail__link:hover::after,
.pronto-colour-rail__link:focus-visible::after { border-color: #353c4e; }
.pronto-colour-rail__link:focus-visible,
.pronto-colour-rail button:focus-visible { outline: 2px solid #333; outline-offset: 2px; }
.pronto-colour-rail__link img,
.pronto-colour-rail__colour { display: block; width: 100%; height: 100%; object-fit: cover; user-select: none; }
.pronto-colour-rail__item--colour .pronto-colour-rail__link {
    width: 30px;
    height: 30px;
    padding: 2px;
    border-radius: 50%;
}
.pronto-colour-rail__item--colour .pronto-colour-rail__link::after,
.pronto-colour-rail__item--colour .pronto-colour-rail__colour { border-radius: 50%; }
/* Shoptimizer shrinks all card images on hover; leave swatch images alone. */
ul.products li.product:not(.product-category):hover .pronto-colour-rail__link img { transform: none; }
.pronto-colour-rail__label { font-size: 10px; line-height: 1.1; text-align: center; overflow: hidden; }
.pronto-colour-rail__previous,
.pronto-colour-rail__next {
    position: absolute;
    display: grid;
    place-items: center;
    z-index: 2;
    top: 0;
    bottom: 0;
    width: 28px;
    padding: 0;
    margin: 0;
    border: 0;
    border-radius: 0;
    color: #555;
    cursor: pointer;
}
.pronto-colour-rail__previous { left: 0; background: linear-gradient(to left, transparent, #fff 45%); }
.pronto-colour-rail__next { right: 0; background: linear-gradient(to right, transparent, #fff 45%); }
/* Keep controls mounted while hiding arrows at either scroll endpoint. */
.pronto-colour-rail button[hidden] {
    display: block !important;
    visibility: hidden !important;
    pointer-events: none !important;
}
.pronto-colour-rail__previous::before,
.pronto-colour-rail__next::before {
    display: block;
    width: 7px;
    height: 7px;
    margin: auto;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    content: '';
}
.pronto-colour-rail__previous::before { transform: rotate(-135deg); }
.pronto-colour-rail__next::before { transform: rotate(45deg); }
.pronto-colour-rail__previous:focus-visible,
.pronto-colour-rail__next:focus-visible { outline-offset: -3px; }
@media (max-width: 767px) {
    .pronto-colour-rail__link { width: 36px; height: 36px; }
}