.catalog-head{ padding-top:20px; }

.category-tree{ display:grid; grid-template-columns:1fr; gap:1px; background:var(--line); border:1px solid var(--line); margin-top:28px; }
@media(min-width:700px){ .category-tree{ grid-template-columns:repeat(2,1fr); } }
@media(min-width:1040px){ .category-tree{ grid-template-columns:repeat(3,1fr); } }
.category-tree-group{ background:var(--paper); padding:20px 22px; }
.category-tree-top{
  font-family:"Fraunces",serif; font-size:1.15rem; text-decoration:none; color:var(--ink);
  display:flex; align-items:center; gap:12px; cursor:pointer; list-style:none;
}
.category-tree-top::-webkit-details-marker{ display:none; }
.category-tree-top::after{
  content:"+"; margin-left:auto; font-family:"Instrument Sans",sans-serif; font-size:1.1rem;
  color:var(--taupe); flex-shrink:0; transition:transform var(--m-instant) ease;
}
details[open] > .category-tree-top::after{ content:"–"; }
.category-monogram{ width:36px; height:36px; flex-shrink:0; display:block; }
.category-monogram svg{ width:100%; height:100%; display:block; }
.category-tree-top:hover{ color:var(--teal-deep); }
.category-tree-children{ display:flex; flex-direction:column; gap:12px; margin-top:14px; padding-left:4px; }
.category-tree-sub > a{ font-size:0.9rem; color:var(--ink); text-decoration:none; font-weight:500; }
.category-tree-sub > a:hover{ color:var(--teal-deep); }
.category-tree-leaves{ display:flex; flex-direction:column; gap:6px; margin-top:8px; padding-left:14px; border-left:1px solid var(--line); }
.category-tree-leaves a{ font-size:0.82rem; color:var(--taupe); text-decoration:none; }
.category-tree-leaves a:hover{ color:var(--teal-deep); }
.category-tree-sub-details{ padding-left:0; }
.category-tree-sub-summary{
  font-size:0.9rem; color:var(--ink); font-weight:500; cursor:pointer; list-style:none;
  display:flex; align-items:center; gap:8px;
}
.category-tree-sub-summary::-webkit-details-marker{ display:none; }
.category-tree-sub-summary::after{ content:"+"; color:var(--taupe); font-size:0.9rem; }
.category-tree-sub-details[open] > .category-tree-sub-summary::after{ content:"–"; }
.category-tree-sub-summary:hover{ color:var(--teal-deep); }
.category-tree-viewall{
  font-size:0.78rem; color:var(--teal-deep) !important; text-decoration:none; font-weight:600;
}
.category-tree-viewall:hover{ text-decoration:underline; }

/* ---- sidebar layout ---- */
.catalog-layout{ display:grid; grid-template-columns:1fr; gap:32px; margin-top:28px; }
@media(min-width:860px){ .catalog-layout{ grid-template-columns:220px 1fr; align-items:start; } }

.catalog-sidebar{ border:1px solid var(--line); background:var(--surface); padding:20px; position:sticky; top:100px; display:flex; flex-direction:column; gap:24px; }

.sidebar-cat-tree{ display:flex; flex-direction:column; gap:4px; }
.sidebar-cat-tree a{ text-decoration:none; color:var(--taupe); transition:color var(--m-instant) ease; }
.sidebar-cat-tree a:hover{ color:var(--teal-deep); }
.sidebar-cat-all{ font-family:"Fraunces",serif; font-size:1rem; color:var(--ink); padding-bottom:10px; margin-bottom:6px; border-bottom:1px solid var(--line); }
.sidebar-cat-all.is-active{ color:var(--teal-deep); }
.sidebar-cat-top-group{ padding:6px 0; }
.sidebar-cat-top{ display:flex; align-items:center; gap:6px; font-family:"Fraunces",serif; font-size:0.94rem; color:var(--ink); padding:4px 0; cursor:pointer; list-style:none; }
.sidebar-cat-top::-webkit-details-marker{ display:none; }
.sidebar-cat-top::after{ content:"+"; margin-left:auto; color:var(--taupe); font-family:"Instrument Sans",sans-serif; font-size:1rem; }
details[open] > .sidebar-cat-top::after{ content:"–"; }
.sidebar-cat-top.is-active{ color:var(--teal-deep); }
.sidebar-cat-subs{ display:flex; flex-direction:column; gap:2px; margin-top:2px; padding-left:12px; border-left:1px solid var(--line); }
.sidebar-cat-sub{ display:block; font-size:0.86rem; padding:5px 0; }
.sidebar-cat-sub.is-active{ color:var(--teal-deep); font-weight:500; }
.sidebar-cat-sub-group{ padding:2px 0; }
summary.sidebar-cat-sub{ display:flex; align-items:center; gap:6px; cursor:pointer; list-style:none; }
summary.sidebar-cat-sub::-webkit-details-marker{ display:none; }
summary.sidebar-cat-sub::after{ content:"+"; margin-left:auto; color:var(--taupe); font-size:0.85rem; }
details[open] > summary.sidebar-cat-sub::after{ content:"–"; }
.sidebar-cat-leaves{ display:flex; flex-direction:column; gap:1px; padding-left:14px; margin-top:2px; }
.sidebar-cat-leaf{ display:block; font-size:0.8rem; padding:4px 0; }
.sidebar-cat-leaf.is-active{ color:var(--teal-deep); font-weight:500; }
.sidebar-cat-viewall{ display:block; font-size:0.78rem; color:var(--teal-deep) !important; font-weight:600; padding:3px 0 6px; }
.filter-form{ display:flex; flex-direction:column; gap:24px; }
.filter-group{ display:flex; flex-direction:column; gap:10px; }
.filter-label{ font-family:"IBM Plex Mono",monospace; font-size:0.7rem; text-transform:uppercase; letter-spacing:0.08em; color:var(--taupe); }
.filter-cat-list{ display:flex; flex-direction:column; gap:8px; }
.filter-radio, .filter-checkbox{ display:flex; align-items:center; gap:8px; font-size:0.9rem; color:var(--ink); cursor:pointer; }
.filter-price-row{ display:flex; align-items:center; gap:8px; }
.filter-price-row input{
  width:0; flex:1; border:1px solid var(--line); background:var(--paper); color:var(--ink);
  padding:7px 8px; font-family:"Instrument Sans",sans-serif; font-size:0.88rem;
}
.filter-price-row span{ color:var(--taupe); }

/* ---- results ---- */
.catalog-toolbar{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:12px; }
.catalog-count{ font-family:"IBM Plex Mono",monospace; font-size:0.78rem; color:var(--taupe); }
.sort-label{ display:flex; align-items:center; gap:8px; font-family:"IBM Plex Mono",monospace; font-size:0.72rem; text-transform:uppercase; color:var(--taupe); }
.sort-label select{ border:1px solid var(--line); background:var(--paper); color:var(--ink); padding:6px 10px; font-family:"Instrument Sans",sans-serif; font-size:0.85rem; }

.catalog-grid{ display:grid; grid-template-columns:1fr; gap:2px; background:var(--line); border:1px solid var(--line); margin:20px 0 0; }
@media(min-width:560px){ .catalog-grid{ grid-template-columns:repeat(2,1fr); } }
@media(min-width:860px){ .catalog-grid{ grid-template-columns:repeat(2,1fr); } }
@media(min-width:1120px){ .catalog-grid{ grid-template-columns:repeat(3,1fr); } }

.product-card{ background:var(--paper); position:relative; display:flex; flex-direction:column; }
.product-card-link{ display:flex; flex-direction:column; flex:1; text-decoration:none; color:var(--ink); }
.product-card-fav{ position:absolute; top:8px; right:8px; z-index:3; margin:0; }
.product-card-fav .fav-btn{ width:32px; height:32px; background:var(--paper); box-shadow:0 1px 4px rgba(0,0,0,0.15); }
.product-card .thumb{
  aspect-ratio:4/5; background:var(--surface); position:relative; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
}
.product-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform var(--m-base) var(--ease-out-snap); }
.product-card:hover .thumb img{ transform:scale(1.04); }
.product-card .match{
  position:absolute; top:10px; right:10px; font-family:"IBM Plex Mono",monospace; font-size:0.64rem;
  background:var(--ink); color:var(--paper); padding:4px 9px; border-radius:100px;
}
.product-card .body{ padding:16px 18px; display:flex; flex-direction:column; gap:6px; }
.product-card .name{ font-family:"Fraunces",serif; font-size:1.05rem; }
.product-card .price{ font-family:"IBM Plex Mono",monospace; font-size:0.85rem; color:var(--taupe); }
.product-card .price-sale{ color:var(--magenta); }
.product-card .price-old{ color:var(--taupe); text-decoration:line-through; font-weight:400; margin-right:2px; }
.empty-thumb{ display:block; width:100%; height:100%; }
.empty-thumb svg{ width:100%; height:100%; display:block; }

.empty-state{ padding:60px 0; text-align:center; color:var(--taupe); font-family:"IBM Plex Mono",monospace; font-size:0.9rem; }

/* ---- product detail ---- */
.product-detail{ display:grid; grid-template-columns:1fr; gap:32px; padding-top:20px; padding-bottom:80px; }
@media(min-width:860px){ .product-detail{ grid-template-columns:1fr 1fr; gap:48px; } }
.product-detail .thumb{ aspect-ratio:4/5; background:var(--surface); overflow:hidden; }
.product-detail .thumb img{ width:100%; height:100%; object-fit:cover; }
.product-detail h1{ font-size:clamp(1.8rem,3.6vw,2.6rem); }
.product-detail .price{ font-family:"IBM Plex Mono",monospace; font-size:1.2rem; color:var(--teal-deep); margin-top:14px; }
.product-detail .price.price-sale{ color:var(--magenta); }
.product-detail .price-old{ color:var(--taupe); text-decoration:line-through; font-size:0.9rem; margin-right:6px; }
.product-detail .desc{ margin-top:20px; color:var(--taupe); max-width:52ch; }
.product-detail .stock{ margin-top:10px; font-family:"IBM Plex Mono",monospace; font-size:0.78rem; color:var(--taupe); }
.product-detail form{ margin-top:26px; display:flex; gap:12px; align-items:center; }
.product-detail input[type="number"]{
  width:64px; border:1px solid var(--line); background:none; color:var(--ink); padding:9px 10px; font-family:"Instrument Sans",sans-serif;
}
.specs-table{ width:100%; border-collapse:collapse; margin-top:32px; font-size:0.88rem; }
.specs-table th{ text-align:left; font-weight:500; color:var(--taupe); padding:9px 14px 9px 0; border-bottom:1px solid var(--line); text-transform:capitalize; width:40%; }
.specs-table td{ padding:9px 0; border-bottom:1px solid var(--line); color:var(--ink); }

.btn-primary{
  position:relative; overflow:hidden; padding:12px 26px; border-radius:100px; border:1px solid var(--ink);
  background:none; color:var(--ink); font-family:"Instrument Sans",sans-serif; font-size:0.95rem; cursor:pointer; z-index:0;
}
.btn-primary::before{
  content:""; position:absolute; inset:0; background:var(--teal-deep); border-radius:100px;
  transform:scale(0); transform-origin:bottom left; transition:transform 0.4s var(--ease-out-snap); z-index:-1;
}
.btn-primary:hover::before, .btn-primary:focus-visible::before{ transform:scale(1); }
.btn-primary:hover, .btn-primary:focus-visible{ color:var(--paper); border-color:var(--teal-deep); }

.btn-secondary{
  padding:12px 26px; border-radius:100px; border:1px solid var(--violet);
  background:var(--violet); color:var(--paper); font-family:"Instrument Sans",sans-serif; font-size:0.95rem;
  cursor:pointer; transition:background var(--m-instant) ease, opacity var(--m-instant) ease;
}
.btn-secondary:hover, .btn-secondary:focus-visible{ opacity:0.88; }
.btn-secondary:disabled{ opacity:0.55; cursor:default; }

.catalog-load-more{ display:flex; justify-content:center; margin:32px 0 0; }

.fav-btn{
  border:1px solid var(--line); background:var(--paper); color:var(--taupe); width:40px; height:40px;
  border-radius:50%; font-size:1.2rem; line-height:1; cursor:pointer; flex-shrink:0;
  display:flex; align-items:center; justify-content:center; transition:color 0.2s ease, border-color 0.2s ease;
}
.fav-btn:hover{ color:var(--magenta); border-color:var(--magenta); }
.fav-btn.is-active{ color:var(--magenta); border-color:var(--magenta); }

.stars{ color:var(--olive); letter-spacing:1px; }

.review-form textarea{ width:100%; resize:vertical; }
.review-list .review-row:first-child{ border-top:none; }

.ask-answers-recap{ display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
.ask-pill-done{
  display:inline-flex; align-items:center; gap:6px; padding:7px 14px; border-radius:100px;
  background:var(--surface); color:var(--taupe); font-size:0.82rem;
}
.ask-pill-done strong{ color:var(--ink); font-weight:600; }

.ask-question{
  margin-top:28px; padding:24px; border:1px solid var(--line); border-radius:20px; background:var(--surface);
}
.ask-question-text{ font-size:1.05rem; color:var(--ink); }
.ask-question-text strong{ font-family:"Fraunces",serif; font-weight:500; }
.ask-options{ display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.ask-options .btn-secondary{ text-decoration:none; }
.ask-skip{ display:inline-block; margin-top:18px; font-size:0.85rem; color:var(--taupe); text-decoration:underline; }
.ask-skip:hover{ color:var(--ink); }