/* BANAUNE_V18_LAYOUT_VARIATIONS: customer-only preview UI */
.bn18-variations{margin:14px 0 16px;border:1px solid var(--border,#dfe3ea);border-radius:14px;background:var(--surface,#fff);overflow:hidden}
.bn18-variations>summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;font-weight:750;list-style:none;color:var(--ink,#202b3b)}
.bn18-variations>summary::-webkit-details-marker{display:none}
.bn18-variations>summary:after{content:'+';font-size:19px;opacity:.65}
.bn18-variations[open]>summary:after{content:'−'}
.bn18-variation-body{padding:0 14px 15px}
.bn18-variation-body>p{font-size:13px;line-height:1.5;color:var(--muted,#64748b);margin:0 0 12px}
.bn18-variation-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.bn18-variant{display:flex;flex-direction:column;gap:7px;align-items:stretch;min-width:0;border:1px solid var(--border,#dce3ed);border-radius:12px;padding:8px;background:var(--surface,#fff);color:inherit;cursor:pointer;text-align:center;transition:border-color .15s,transform .15s}
.bn18-variant:hover,.bn18-variant:focus-visible{border-color:var(--brand,#2864d8);outline-offset:3px}
.bn18-variant[aria-pressed=true]{outline:2px solid var(--brand,#2864d8);outline-offset:1px}
.bn18-variant img{display:block;width:100%;aspect-ratio:1/1;object-fit:contain;background:var(--surface-alt,#f0f3f7);border-radius:8px}
.bn18-variant span{font-size:12px;font-weight:750;line-height:1.25}
.bn18-variation-tools{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:12px}
.bn18-refresh{border:1px solid var(--border,#dce3ed);border-radius:9px;background:var(--surface-alt,#f5f7fa);padding:8px 12px;color:inherit;cursor:pointer;font:inherit;font-size:12px;font-weight:650}
#bn18-variation-status{font-size:12px;color:var(--muted,#637187);flex:1;min-width:160px}
@media(max-width:690px){.bn18-variation-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bn18-variations>summary{padding:12px}}
@media(prefers-reduced-motion:reduce){.bn18-variant{transition:none}}