/**
 * 🔷 UAC Exhibitions — Commerce CSS (v1.1.0)
 * Monochrome #000 / #fff · 22px borders · shimmer · fully responsive.
 * Scoped under .uac-store / .uac-buy so it never bleeds into Impreza/WPBakery.
 */

/* ───────────────────────── tokens ───────────────────────── */
.uac-store, .uac-buy {
    --uac-ink: #000;
    --uac-paper: #fff;
    --uac-line: #000;
    --uac-muted: #6b6b6b;
    --uac-soft: #f3f3f3;
    --uac-radius: 22px;
    --uac-radius-sm: 14px;
    box-sizing: border-box;
}
.uac-store *, .uac-store *::before, .uac-store *::after { box-sizing: border-box; }

/* ───────────────────────── BUY control (inside plaques + store) ───────────────────────── */
.uac-buy { margin-top: 10px; }
.uac-buy__btn {
    display: inline-flex; align-items: center; gap: 8px;
    width: 100%; justify-content: center;
    padding: 11px 16px;
    background: var(--uac-ink); color: var(--uac-paper);
    border: 2px solid var(--uac-ink); border-radius: var(--uac-radius-sm);
    font-weight: 700; font-size: 13px; letter-spacing: .02em;
    cursor: pointer; text-transform: uppercase;
    transition: transform .15s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
    position: relative; overflow: hidden;
}
.uac-buy__btn:hover:not(:disabled) {
    background: var(--uac-paper); color: var(--uac-ink);
    box-shadow: 0 6px 22px rgba(0,0,0,.18); transform: translateY(-1px);
}
.uac-buy__btn:disabled { opacity: .7; cursor: progress; }
.uac-buy__cart { font-size: 15px; }
.uac-buy__price {
    margin-left: auto; padding-left: 10px;
    font-variant-numeric: tabular-nums; opacity: .85;
}
.uac-buy__btn::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.25), transparent);
    transform: translateX(-120%);
}
.uac-buy__btn:hover::after { animation: uac-buy-shimmer 1.1s ease; }
@keyframes uac-buy-shimmer { to { transform: translateX(120%); } }

.uac-buy__spin {
    width: 14px; height: 14px; border-radius: 50%;
    border: 2px solid currentColor; border-top-color: transparent;
    display: inline-block; animation: uac-buy-spin .7s linear infinite;
}
@keyframes uac-buy-spin { to { transform: rotate(360deg); } }

.uac-buy.is-added { text-align: center; }
.uac-buy__ok {
    display: inline-block; font-weight: 800; font-size: 13px;
    color: var(--uac-ink); letter-spacing: .04em; text-transform: uppercase;
}
.uac-buy__links { display: flex; gap: 8px; margin-top: 8px; }
.uac-buy__link {
    flex: 1; text-align: center; text-decoration: none;
    padding: 9px 12px; border-radius: var(--uac-radius-sm);
    border: 2px solid var(--uac-ink); color: var(--uac-ink); background: var(--uac-paper);
    font-weight: 700; font-size: 12px; text-transform: uppercase;
    transition: background .15s ease, color .15s ease;
}
.uac-buy__link:hover { background: var(--uac-soft); }
.uac-buy__link--go { background: var(--uac-ink); color: var(--uac-paper); }
.uac-buy__link--go:hover { opacity: .85; }

.uac-buy.is-sold .uac-buy__sold {
    display: inline-flex; align-items: center; gap: 7px;
    width: 100%; justify-content: center;
    padding: 11px 16px; border: 2px dashed var(--uac-muted);
    border-radius: var(--uac-radius-sm); color: var(--uac-muted);
    font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
}
.uac-buy__err {
    display: block; margin-top: 6px; color: #b00020; font-size: 12px; text-align: center;
}

/* ───────────────────────── STORE ───────────────────────── */
.uac-store { width: 100%; color: var(--uac-ink); }
.uac-store__inner { width: 100%; }
.uac-store__heading {
    font-size: clamp(22px, 3vw, 34px); font-weight: 800; letter-spacing: -.01em;
    margin: 0 0 18px; color: var(--uac-ink);
}

.uac-store__filters {
    display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
    margin-bottom: 22px;
}
.uac-store__search {
    display: flex; align-items: center; gap: 8px; flex: 1 1 240px;
    border: 2px solid var(--uac-ink); border-radius: var(--uac-radius);
    padding: 8px 14px; background: var(--uac-paper);
}
.uac-store__search input {
    border: 0; outline: 0; background: transparent; flex: 1;
    font-size: 14px; color: var(--uac-ink);
}
.uac-store__select {
    border: 2px solid var(--uac-ink); border-radius: var(--uac-radius);
    padding: 9px 14px; background: var(--uac-paper); color: var(--uac-ink);
    font-size: 14px; font-weight: 600; cursor: pointer;
}
.uac-store__views { display: flex; gap: 6px; margin-left: auto; }
.uac-store__view {
    border: 2px solid var(--uac-ink); border-radius: var(--uac-radius);
    padding: 8px 14px; background: var(--uac-paper); color: var(--uac-ink);
    font-weight: 700; font-size: 12px; cursor: pointer; text-transform: uppercase;
    transition: background .15s ease, color .15s ease;
}
.uac-store__view.is-active { background: var(--uac-ink); color: var(--uac-paper); }

/* grid (responsive 3×3 default; --uac-store-cols controls desktop columns) */
.uac-store__grid {
    display: grid;
    grid-template-columns: repeat(var(--uac-store-cols, 3), minmax(0, 1fr));
    gap: 22px;
}

/* carousel */
.uac-store__carousel { display: flex; align-items: stretch; gap: 8px; }
.uac-store__track {
    display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory;
    padding: 4px 2px 16px; flex: 1; scrollbar-width: thin;
}
.uac-store__track::-webkit-scrollbar { height: 8px; }
.uac-store__track::-webkit-scrollbar-thumb { background: var(--uac-ink); border-radius: 8px; }
.uac-store__slide { flex: 0 0 clamp(260px, 32%, 360px); scroll-snap-align: start; }
.uac-store__nav {
    align-self: center; flex: 0 0 auto;
    width: 44px; height: 44px; border-radius: 50%;
    border: 2px solid var(--uac-ink); background: var(--uac-paper); color: var(--uac-ink);
    font-size: 24px; line-height: 1; cursor: pointer;
    transition: background .15s ease, color .15s ease;
}
.uac-store__nav:hover { background: var(--uac-ink); color: var(--uac-paper); }

/* card */
.uac-store__card {
    display: flex; flex-direction: column;
    border: 3px solid var(--uac-ink); border-radius: var(--uac-radius);
    overflow: hidden; background: var(--uac-paper);
    transition: transform .2s ease, box-shadow .2s ease;
}
.uac-store__card:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(0,0,0,.16); }
.uac-store__card.is-sold { opacity: .9; }
.uac-store__media { position: relative; aspect-ratio: 4 / 3; background: var(--uac-soft); overflow: hidden; }
.uac-store__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.uac-store__ribbon {
    position: absolute; top: 12px; left: -34px; transform: rotate(-45deg);
    background: var(--uac-ink); color: var(--uac-paper);
    padding: 6px 44px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em;
}
.uac-store__exhibit {
    position: absolute; left: 10px; bottom: 10px;
    background: rgba(0,0,0,.78); color: #fff; padding: 4px 10px;
    border-radius: 999px; font-size: 11px; font-weight: 600;
    max-width: calc(100% - 20px); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.uac-store__body { padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.uac-store__title { margin: 0; font-size: 17px; font-weight: 800; line-height: 1.25; color: var(--uac-ink); }
.uac-store__artist { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--uac-muted); }
.uac-store__artist a { color: var(--uac-ink); font-weight: 700; text-decoration: none; }
.uac-store__artist a:hover { text-decoration: underline; }
.uac-store__ava { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 2px solid var(--uac-ink); }
.uac-store__ava.is-ph {
    width: 26px; height: 26px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
    background: var(--uac-ink); color: var(--uac-paper); font-size: 10px; font-weight: 800;
}
.uac-store__meta { font-size: 12px; color: var(--uac-muted); min-height: 1em; }
.uac-store__foot { margin-top: auto; padding-top: 8px; }
.uac-store__price {
    display: block; font-size: 20px; font-weight: 800; color: var(--uac-ink);
    font-variant-numeric: tabular-nums; margin-bottom: 8px;
}

.uac-store__more { text-align: center; margin-top: 28px; }
.uac-store__loadmore {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 34px; border: 2px solid var(--uac-ink); border-radius: var(--uac-radius);
    background: var(--uac-ink); color: var(--uac-paper);
    font-weight: 800; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; cursor: pointer;
    transition: background .15s ease, color .15s ease;
}
.uac-store__loadmore:hover:not(:disabled) { background: var(--uac-paper); color: var(--uac-ink); }
.uac-store__loadmore:disabled { opacity: .7; cursor: progress; }
.uac-store__count { opacity: .75; font-weight: 600; }
.uac-store__count-line { text-align: center; margin-top: 22px; color: var(--uac-muted); font-size: 12px; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

.uac-store__empty, .uac-store__notice {
    text-align: center; padding: 48px 20px; color: var(--uac-muted);
    border: 2px dashed var(--uac-muted); border-radius: var(--uac-radius); font-size: 15px;
}

/* loading placeholder (self-sufficient so it styles even on store-only pages) */
.uac-store .uac-ex-loading { text-align: center; padding: 56px 20px; color: var(--uac-muted); }
.uac-store .uac-ex-loading__shimmer {
    height: 6px; max-width: 280px; margin: 0 auto 16px; border-radius: 999px;
    background: linear-gradient(90deg, var(--uac-soft) 0%, var(--uac-line) 50%, var(--uac-soft) 100%);
    background-size: 200% 100%; animation: uac-store-shimmer 1.3s ease-in-out infinite; opacity: .55;
}
@keyframes uac-store-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ───────────────────────── responsive ───────────────────────── */
@media (max-width: 1024px) {
    .uac-store__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
}
@media (max-width: 600px) {
    .uac-store__grid { grid-template-columns: 1fr; gap: 16px; }
    .uac-store__filters { gap: 10px; }
    .uac-store__views { margin-left: 0; width: 100%; }
    .uac-store__view { flex: 1; }
    .uac-store__slide { flex-basis: 84%; }
    .uac-store__nav { display: none; }
}

/* ───────────────────────── dark surfaces (auto) ───────────────────────── */
@media (prefers-color-scheme: dark) {
    .uac-store, .uac-buy {
        --uac-ink: #fff; --uac-paper: #0a0a0a; --uac-line: #fff;
        --uac-muted: #9a9a9a; --uac-soft: #161616;
    }
    .uac-store__exhibit { background: rgba(255,255,255,.14); }
}