.loading-card,
.empty-state,
.error-state {
    grid-column: 1 / -1;
    min-height: 168px;
    padding: 28px;
    place-content: center;
    text-align: center;
    box-shadow: none;
}

.loading-card {
    position: relative;
    display: grid;
    overflow: hidden;
    color: var(--ui-muted);
    font-weight: 750;
}

.loading-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 20%, color-mix(in srgb, var(--ui-skeleton-highlight) 78%, transparent) 46%, transparent 72%);
    transform: translateX(-100%);
    animation: ui-skeleton-sweep 1.2s ease-in-out infinite;
}

.empty-state,
.error-state {
    display: grid;
    border-style: dashed;
    background: var(--ui-surface);
}

.empty-state strong,
.error-state strong {
    display: block;
    color: var(--ui-heading);
    font-size: 18px;
}

.empty-state p,
.error-state p {
    max-width: 52ch;
    margin: 7px auto 0;
}

.empty-state .btn,
.error-state .btn {
    margin: 14px auto 0;
}

.error-state {
    border-color: var(--ui-danger-border);
    background: var(--ui-danger-soft);
}

.product-skeleton {
    pointer-events: none;
}

[data-boot-skeleton] > .boot-skeleton {
    display: none;
}

[data-boot-skeleton].is-visible > .boot-skeleton {
    display: block;
}

.product-skeleton .product-img,
.skeleton-line,
.skeleton-price,
.skeleton-button {
    position: relative;
    overflow: hidden;
    background: var(--ui-skeleton);
}

.product-skeleton .product-img {
    aspect-ratio: 4 / 3;
}

.product-skeleton .product-img::after,
.skeleton-line::after,
.skeleton-price::after,
.skeleton-button::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 18%, var(--ui-skeleton-highlight) 48%, transparent 78%);
    transform: translateX(-100%);
    animation: ui-skeleton-sweep 1.2s ease-in-out infinite;
}

.skeleton-line {
    width: 100%;
    height: 12px;
    margin-bottom: 9px;
    border-radius: var(--ui-radius-xs);
}

.skeleton-line.short { width: 42%; }
.skeleton-line.mid { width: 68%; }

.skeleton-price {
    width: 86px;
    height: 24px;
    border-radius: var(--ui-radius-xs);
}

.skeleton-button {
    width: 58px;
    height: 34px;
    border-radius: var(--ui-radius-md);
}

[aria-busy="true"] {
    cursor: wait;
}

.product-grid.is-refreshing {
    opacity: .72;
    pointer-events: none;
    transition: opacity var(--ui-duration-fast) ease-out;
}

.detail-skeleton .detail-media,
.detail-skeleton .detail-thumbnails span,
.detail-skeleton .info-box,
.profile-skeleton section,
.profile-skeleton article,
.profile-skeleton i {
    position: relative;
    overflow: hidden;
    background: var(--ui-skeleton);
}

.detail-skeleton .detail-media::after,
.detail-skeleton .detail-thumbnails span::after,
.detail-skeleton .info-box::after,
.profile-skeleton section::after,
.profile-skeleton article::after,
.profile-skeleton i::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 18%, var(--ui-skeleton-highlight) 48%, transparent 78%);
    transform: translateX(-100%);
    animation: ui-skeleton-sweep 1.2s ease-in-out infinite;
}

.detail-skeleton .detail-thumbnails span {
    width: 64px;
    aspect-ratio: 1;
    border-radius: var(--ui-radius-sm);
}

button[aria-busy="true"],
select[aria-busy="true"],
input[aria-busy="true"] {
    opacity: .58;
    pointer-events: none;
}

@keyframes ui-skeleton-sweep {
    to { transform: translateX(100%); }
}