/* ============ THEME2 PRODUCT — gallery, details, tabs, reviews, sticky, lightbox ============ */

/* breadcrumb */
.breadcrumb{padding-top:26px;display:flex;align-items:center;gap:10px;color:var(--ink2);font-size:.88rem;flex-wrap:wrap}
.breadcrumb a{transition:color .3s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .ic{width:14px;height:14px}
.breadcrumb b{color:var(--ink)}

/* product layout */
.product{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,44px);align-items:start;padding-block:26px 16px}
.gallery-wrap{position:sticky;top:calc(var(--header-h) + 24px)}
.gallery{display:grid;grid-template-columns:78px 1fr;gap:14px}
.g-thumbs{display:flex;flex-direction:column;gap:12px}
.g-thumb{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:4/5;border:2px solid transparent;transition:border-color .3s;opacity:.65}
.g-thumb.active{border-color:var(--accent);opacity:1}
.g-thumb img{width:100%;height:100%;object-fit:cover}
.g-main{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/5;background:var(--bg2)}
.g-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s,transform .45s ease-out;will-change:transform}
.g-img.active{opacity:1}
.g-main.zoom .g-img.active{transform:scale(1.65)}
.p-off{position:absolute;top:16px;inset-inline-end:16px;background:var(--accent);color:#fff;padding:7px 14px;border-radius:999px;font-size:.78rem;font-weight:700;z-index:2}

/* details */
.p-cat{color:var(--accent);font-weight:700;font-size:.85rem}
.p-title{font-size:clamp(1.7rem,3.6vw,2.7rem);font-weight:900;line-height:1.35;margin-top:6px}
.p-rating{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:.9rem}
.p-rating .t-stars{display:flex;gap:2px;color:var(--accent)}
.p-rating span{color:var(--ink2)}
.p-pricebox{display:flex;align-items:baseline;gap:16px;margin-top:16px;padding-block:16px;border-block:1px solid var(--line)}
.p-now{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:900;color:var(--accent)}
.p-now small{font-size:.95rem;font-weight:700;color:var(--ink)}
.p-pricebox del{color:var(--ink2)}
.p-desc{color:var(--ink2);font-size:.96rem}
.opt-row{display:flex;gap:8px;font-size:.92rem;margin-bottom:12px}
.opt-row b{color:var(--ink)}
.opt-row span{color:var(--ink2)}
.swatches{display:flex;gap:12px}
.swatch{width:38px;height:38px;border-radius:50%;background:var(--c);box-shadow:0 0 0 1px var(--line2);transition:.3s var(--ease)}
.swatch.active{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent);transform:scale(1.08)}
.p-option{margin-top:18px}
.p-actions{display:flex;gap:12px;margin-top:20px;align-items:stretch}
.p-actions .qty button{width:46px;height:52px}
.p-actions .qty span{min-width:34px;text-align:center;font-weight:800}
.grow{flex:1}
.trust{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r-md);margin-top:20px;overflow:hidden}
.trust div{padding:12px 10px;display:flex;gap:12px;align-items:center;font-size:.82rem;font-weight:600}
.trust div+div{border-inline-start:1px solid var(--line)}
.trust .ic{color:var(--accent);width:24px;height:24px}
.p-meta{margin-top:24px;font-size:.9rem}
.p-meta li{display:flex;gap:8px;padding-block:7px;border-bottom:1px dashed var(--line)}
.p-meta span{color:var(--ink2);min-width:84px}

/* tabs */
.tab-buttons{position:relative;display:flex;gap:24px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.tab-btn{padding:12px 2px;font-weight:700;font-size:1rem;color:var(--ink2);white-space:nowrap;transition:color .3s}
.tab-btn.active{color:var(--ink)}
.tab-ind{position:absolute;bottom:-1px;height:2.5px;background:var(--accent);transition:.45s var(--ease)}
.tab-panel{display:none;padding-top:24px;animation:fadeUp .55s var(--ease)}
.tab-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}}
.prose{max-width:72ch;color:var(--ink2)}
.prose p+p{margin-top:14px}
.prose ul{margin-top:14px;padding-inline-start:4px}
.prose li{display:flex;gap:10px;padding-block:5px}
.prose li .ic{width:18px;height:18px;color:var(--accent);margin-top:7px}
.spec-row{display:flex;justify-content:space-between;gap:20px;padding-block:11px;border-bottom:1px solid var(--line);font-size:.95rem;max-width:640px}
.spec-row span{color:var(--ink2)}
.spec-row b{font-weight:700;text-align:start}

/* reviews */
.review{border-bottom:1px solid var(--line);padding-block:20px;max-width:760px}
.review.new{animation:flash 2.2s var(--ease)}
@keyframes flash{0%{background:rgba(239,57,78,.08)}100%{background:transparent}}
.rv-head{display:flex;align-items:center;gap:14px}
.rv-avatar{width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-weight:800}
.rv-head b{display:block;line-height:1.6}
.rv-head small{color:var(--ink2)}
.rv-stars{display:flex;gap:2px;color:var(--accent);margin-block:10px 6px}
.rv-stars .ic{width:16px;height:16px}
.rv-text{color:var(--ink2);font-size:.95rem}
.helpful{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line2);border-radius:999px;padding:8px 18px;font-size:.82rem;font-weight:700;margin-top:14px;transition:.3s}
.helpful:hover{border-color:var(--accent);color:var(--accent)}
.helpful.voted{background:var(--accent);border-color:var(--accent);color:#fff}
.helpful .ic{width:15px;height:15px}
.rv-form{max-width:760px;margin-top:28px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.rv-form h3{margin-bottom:18px}
.f-row{display:grid;grid-template-columns:1fr auto;gap:18px;margin-bottom:16px}
.field input,.field textarea{width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:14px;padding:13px 18px;font:inherit;font-size:.95rem;outline:none;transition:border-color .3s}
.field input:focus,.field textarea:focus{border-color:var(--accent)}
.field textarea{min-height:110px;resize:vertical;margin-top:16px}
.star-picker{display:flex;gap:4px;align-items:center}
.star-picker .ic{width:22px;height:22px;color:var(--ink2);transition:.2s}
.star-btn.on .ic{color:var(--accent);fill:var(--accent)}

/* sticky bar */
.sticky-bar{position:fixed;bottom:0;inset-inline:0;z-index:95;transform:translateY(110%);transition:.5s var(--ease);background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-top:1px solid var(--line)}
.dark .sticky-bar{background:rgba(30,32,37,.92)}
.sticky-bar.show{transform:none}
.sb-inner{display:flex;align-items:center;gap:16px;padding-block:10px}
.sb-inner img{width:52px;height:60px;object-fit:cover;border-radius:10px}
.sb-info{flex:1;line-height:1.6}
.sb-info b{display:block;font-size:.92rem}
.sb-info span{color:var(--accent);font-weight:800;font-size:.9rem}
.sb-inner .qty button{width:38px;height:40px}
.sb-inner .btn{padding:11px 24px}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:210;background:rgba(30,32,37,.94);display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .4s}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:88vw;max-height:86vh;border-radius:var(--r-md)}
.lb-close{position:absolute;top:24px;inset-inline-end:24px;background:rgba(255,255,255,.15);border-color:transparent;color:#F6F7F8}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .product{grid-template-columns:1fr}
  .gallery-wrap{position:static}
}
@media (max-width:600px){
  .gallery{grid-template-columns:1fr}
  .g-thumbs{flex-direction:row;order:2}
  .g-thumb{width:70px}
  .f-row{grid-template-columns:1fr}
  .trust{grid-template-columns:1fr}
  .trust div+div{border-inline-start:none;border-top:1px solid var(--line)}
  .p-actions{flex-wrap:wrap}
  .sb-info span{font-size:.82rem}
  .sb-inner .btn{padding:10px 16px;font-size:.85rem}
}