/* ============================================================
   Catalogue & Product Detail styles
   ============================================================ */

/* ========== FILTER BAR ========== */
.filterbar{
  position:sticky;top:0;z-index:20;background:var(--paper);
  border-bottom:1px solid var(--rule-2);padding:18px 0
}
.filterbar .row{
  display:flex;justify-content:space-between;align-items:center;
  gap:24px;flex-wrap:wrap
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border:1px solid var(--rule-2);background:transparent;
  font-family:'DM Mono',ui-monospace,monospace;font-size:10px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--ink-2);
  cursor:pointer;transition:all .2s
}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip .n{
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:14px;letter-spacing:0;color:var(--green);
  text-transform:none;line-height:1
}
.chip.active .n{color:var(--accent-light)}

.search{
  display:flex;align-items:center;gap:10px;
  border:1px solid var(--rule-2);padding:10px 14px;min-width:240px
}
.search input{
  background:transparent;border:0;outline:0;flex:1;
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:16px;color:var(--ink)
}
.search input::placeholder{color:var(--muted);font-style:italic}
.search svg{width:16px;height:16px;color:var(--muted);flex-shrink:0}

.results-meta{
  font-family:'DM Mono',ui-monospace,monospace;
  font-size:10px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--muted);padding:24px 0
}
.results-meta b{color:var(--ink);font-weight:500}

/* ========== CATEGORY SECTIONS ========== */
.cat-section{padding:64px 0;border-bottom:1px solid var(--rule)}
.cat-section:last-child{border-bottom:0}
.cat-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;flex-wrap:wrap;margin-bottom:40px;
  padding-bottom:18px;border-bottom:1px solid var(--ink)
}
.cat-head .roman{
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:20px;color:var(--green);letter-spacing:.04em
}
.cat-head .title{
  font-family:'Cormorant Garamond',serif;font-weight:500;
  font-size:clamp(28px,3.4vw,44px);line-height:1;letter-spacing:-.01em
}
.cat-head .count{
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted)
}

/* ========== PRODUCT GRID ========== */
.pgrid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px
}
.pcard{
  background:var(--paper);border:1px solid var(--rule);
  display:flex;flex-direction:column;
  transition:border-color .25s,transform .25s
}
.pcard:hover{border-color:var(--ink);transform:translateY(-2px)}
.pcard .pimg{
  aspect-ratio:1/1;background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;
  border-bottom:1px solid var(--rule);overflow:hidden;position:relative
}
.pcard .pimg img{width:100%;height:100%;object-fit:contain;padding:14px}
.pcard .pimg.empty{background:var(--paper-2)}
.pcard .pimg.empty svg{width:64px;height:64px;color:#bdb8a8}
.pcard .pbody{padding:20px 18px 22px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard .pmodel{
  font-family:'Cormorant Garamond',serif;font-weight:500;
  font-size:22px;letter-spacing:-.01em;line-height:1.15;color:var(--ink)
}
.pcard .pcat{
  font-family:'DM Mono',ui-monospace,monospace;font-size:9.5px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted)
}
.pcard .pspec{
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:14.5px;line-height:1.45;color:var(--ink-2);
  margin-top:8px;flex:1
}
.pcard .parr{
  margin-top:14px;
  font-family:'DM Mono',ui-monospace,monospace;font-size:10px;
  letter-spacing:.28em;text-transform:uppercase;color:var(--green);
  display:flex;align-items:center;gap:8px
}
.pcard:hover .parr span:last-child{transform:translateX(4px)}
.pcard .parr span:last-child{transition:transform .25s}

/* ========== PRODUCT DETAIL PAGE ========== */
.crumb{
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted);
  padding:24px 0;border-bottom:1px solid var(--rule)
}
.crumb a:hover{color:var(--green)}
.crumb .sep{margin:0 12px;color:var(--rule-2)}

.product-hero{padding:64px 0 96px}
.product-hero .grid{
  display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:start
}
.gallery{display:flex;flex-direction:column;gap:14px}
.gallery .main{
  aspect-ratio:1/1;background:var(--paper-2);
  border:1px solid var(--rule);display:flex;align-items:center;justify-content:center;
  overflow:hidden
}
.gallery .main img{max-width:100%;max-height:100%;object-fit:contain;padding:32px}
.gallery .main.empty svg{width:96px;height:96px;color:#bdb8a8}
.gallery .thumbs{display:flex;gap:10px;flex-wrap:wrap}
.gallery .thumb{
  width:80px;height:80px;border:1px solid var(--rule);background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  overflow:hidden;transition:border-color .2s
}
.gallery .thumb img{max-width:100%;max-height:100%;object-fit:contain;padding:6px}
.gallery .thumb:hover,.gallery .thumb.active{border-color:var(--ink)}

.detail-meta .roman{
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:20px;color:var(--green);letter-spacing:.04em
}
.detail-meta .cat{
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.32em;text-transform:uppercase;color:var(--muted);
  margin-bottom:12px
}
.detail-meta h1{
  font-family:'Cormorant Garamond',serif;font-weight:500;
  font-size:clamp(48px,6vw,84px);line-height:.95;letter-spacing:-.02em
}
.detail-meta .summary{
  margin-top:18px;font-family:'Cormorant Garamond',serif;
  font-style:italic;font-size:21px;line-height:1.5;color:var(--ink-2)
}

.spec-table{
  margin-top:36px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)
}
.spec-row{
  display:grid;grid-template-columns:1fr 1.6fr;gap:24px;
  padding:14px 4px;border-bottom:1px solid var(--rule)
}
.spec-row:last-child{border-bottom:0}
.spec-row .k{
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted);
  padding-top:2px
}
.spec-row .v{
  font-family:'Cormorant Garamond',serif;font-size:17px;
  line-height:1.5;color:var(--ink)
}

.datasheet{
  margin-top:36px;border:1px solid var(--rule);background:var(--paper-2)
}
.datasheet summary{
  list-style:none;cursor:pointer;
  padding:16px 22px;
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.28em;text-transform:uppercase;color:var(--ink-2);
  display:flex;justify-content:space-between;align-items:center
}
.datasheet summary::-webkit-details-marker{display:none}
.datasheet summary::after{content:"+";font-size:18px;color:var(--green);font-family:'Cormorant Garamond',serif}
.datasheet[open] summary::after{content:"−"}
.datasheet pre{
  padding:20px 22px;border-top:1px solid var(--rule);
  font-family:'DM Mono',ui-monospace,monospace;font-size:12px;line-height:1.7;
  color:var(--ink-2);white-space:pre-wrap;word-break:break-word
}
.datasheet .note{
  padding:14px 22px;font-family:'Cormorant Garamond',serif;
  font-style:italic;font-size:14.5px;line-height:1.5;color:var(--muted);
  border-top:1px solid var(--rule)
}

.detail-cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}

/* ========== RELATED ========== */
.related{padding:96px 0;background:var(--paper-2);border-top:1px solid var(--rule)}
.related .head{
  display:flex;justify-content:space-between;align-items:baseline;
  margin-bottom:32px;border-bottom:1px solid var(--ink);padding-bottom:18px
}
.related h2{
  font-family:'Cormorant Garamond',serif;font-weight:500;
  font-size:32px;letter-spacing:-.01em
}
.related h2 i{font-style:italic;color:var(--green);font-weight:400}
.related .all{
  font-family:'DM Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--green)
}

/* ========== LOADING / EMPTY ========== */
.loading{
  padding:120px 0;text-align:center;
  font-family:'Cormorant Garamond',serif;font-style:italic;font-size:20px;color:var(--muted)
}
.empty-state{
  padding:120px 32px;text-align:center;
  font-family:'Cormorant Garamond',serif;color:var(--ink-2)
}
.empty-state h3{font-style:italic;font-size:36px;color:var(--ink);margin-bottom:14px;font-weight:500}
.empty-state p{font-size:17px;color:var(--muted)}

/* ========== RESPONSIVE ========== */
@media (max-width:1024px){
  .pgrid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:880px){
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .product-hero .grid{grid-template-columns:1fr;gap:36px}
  .filterbar .row{flex-direction:column;align-items:stretch}
  .search{width:100%}
}
@media (max-width:560px){
  .pgrid{grid-template-columns:1fr}
  .spec-row{grid-template-columns:1fr;gap:4px}
}