/* ============================================================
   Storefront · Quick-add de productos variables desde el listado
   Modal centrado en desktop, bottom sheet en mobile. Los swatches
   reutilizan las clases .storefront-product-* que ya estilizan
   los themes, para que el look sea nativo de cada theme.
   ============================================================ */

.st-quick-add {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    transition: opacity 0.18s ease;
}

.st-quick-add.is-visible {
    opacity: 1;
}

body.st-quick-add-open {
    overflow: hidden;
}

.st-quick-add__dialog {
    position: relative;
    width: min(100%, 440px);
    max-height: min(86vh, 640px);
    overflow-y: auto;
    padding: 20px;
    border-radius: var(--st-radius, 12px);
    background: var(--st-bg, #ffffff);
    color: var(--st-fg, #0f172a);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.25);
    transform: translateY(10px);
    transition: transform 0.18s ease;
}

.st-quick-add.is-visible .st-quick-add__dialog {
    transform: translateY(0);
}

.st-quick-add__close {
    position: absolute;
    top: 10px;
    right: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: inherit;
    font-size: 15px;
    cursor: pointer;
}

.st-quick-add__close:hover {
    background: color-mix(in srgb, var(--st-fg, #0f172a) 8%, transparent);
}

.st-quick-add__head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-right: 34px;
}

.st-quick-add__thumb {
    flex: 0 0 auto;
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: calc(var(--st-radius, 12px) * 0.6);
    border: 1px solid var(--st-border, #ececec);
}

.st-quick-add__head-copy {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.st-quick-add__title {
    color: inherit;
    font-size: 15px;
    font-weight: 650;
    line-height: 1.3;
    text-decoration: none;
}

.st-quick-add__title:hover {
    text-decoration: underline;
}

.st-quick-add__price {
    min-height: 20px;
    font-size: 14.5px;
    font-weight: 700;
}

.st-quick-add__price-old {
    opacity: 0.55;
    text-decoration: line-through;
    font-weight: 500;
}

.st-quick-add__attributes {
    display: grid;
    gap: 14px;
}

.st-quick-add__feedback {
    min-height: 18px;
    margin-top: 10px;
    font-size: 12.5px;
    opacity: 0.75;
}

.st-quick-add__submit {
    width: 100%;
    margin-top: 6px;
}

.st-quick-add__submit[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
}

.st-quick-add__detail-link {
    display: block;
    margin-top: 12px;
    color: inherit;
    font-size: 12.5px;
    opacity: 0.7;
    text-align: center;
    text-decoration: underline;
}

.st-quick-add__detail-link:hover {
    opacity: 1;
}

[data-st-quick-add].is-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Mobile: bottom sheet */
@media (max-width: 640px) {
    .st-quick-add {
        align-items: flex-end;
        padding: 0;
    }

    .st-quick-add__dialog {
        width: 100%;
        max-height: 82vh;
        border-radius: var(--st-radius, 12px) var(--st-radius, 12px) 0 0;
        padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
        transform: translateY(100%);
    }
}