:root{
  --bg:#ffffff;
  --text:#0b0b0b;
  --muted:#6b6b6b;
  --line:#e6e6e6;
  --accent:#2A4BFF;
  --container: 1380px;
  --pad-desktop: 64px;
  --pad-mobile: 24px;
  --radius: 18px;
  --t: 260ms ease;
  --shadow: 0 0 0 rgba(0,0,0,0);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  --serif: ui-serif, Georgia, "Times New Roman", Times, serif;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: var(--sans);
  line-height:1.55;
}

.viewer iframe { width:100%; height:100%; display:block; }

a{color:inherit; text-decoration:none;}
a:hover{opacity:.72; transition: opacity var(--t);}

.container{
  max-width: var(--container);
  padding: 0 var(--pad-desktop);
  margin: 0 auto;
}
@media (max-width: 900px){
  .container{padding: 0 var(--pad-mobile);}
}

.topbar{
  position: sticky;
  top:0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.topbar-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:10px;
}
.brand .mark{
  font-weight:700;
  letter-spacing:.02em;
}
.brand .sub{
  color:var(--muted);
  font-size:13px;
}
.nav{
  display:flex;
  align-items:center;
  gap:18px;
  font-size:14px;
}
.nav a{
  padding:10px 10px;
  border-radius: 999px;
}
.nav a.active{
  border: 1px solid var(--line);
}
.iconbtn{
  border:1px solid var(--line);
  background:transparent;
  padding:10px 12px;
  border-radius:999px;
  cursor:pointer;
  transition: transform var(--t), opacity var(--t);
}
.iconbtn:hover{transform: translateY(-1px); opacity:.8;}
.divider{border-top:1px solid var(--line);}

.h1{
  font-size: clamp(40px, 4.5vw, 64px);
  line-height:1.05;
  letter-spacing:-.02em;
  margin: 0 0 18px 0;
}
.h2{
  font-size: clamp(22px, 2.2vw, 32px);
  line-height:1.2;
  letter-spacing:-.01em;
  margin: 0 0 14px 0;
}
.lead{color:var(--muted); font-size: 18px; max-width: 52ch; margin:0 0 22px 0;}
.meta{color:var(--muted); font-size: 13px;}
.kicker{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.btnrow{display:flex; gap:12px; flex-wrap:wrap; align-items:center;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 12px 16px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: transparent;
  cursor:pointer;
  transition: transform var(--t), opacity var(--t);
  font-size:14px;
}
.btn.primary{
  border-color: var(--accent);
  color: var(--accent);
}
.btn:hover{transform: translateY(-1px); opacity:.85;}

.section{padding: 64px 0;}
.section.tight{padding: 40px 0;}
.grid{
  display:grid;
  gap: 18px;
}
.hero{
  display:grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 40px;
  padding: 56px 0 40px 0;
}
@media (max-width: 900px){
  .hero{grid-template-columns: 1fr; padding-top: 28px;}
}

.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background: #fff;
  transition: transform var(--t), opacity var(--t);
}
.card:hover{transform: translateY(-2px);}
.card-media{
  background: #f6f6f6;
  aspect-ratio: 4/5;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.card-body{
  padding: 14px 14px 16px 14px;
}
.card-title{
  font-size: 15px;
  margin: 0 0 6px 0;
  letter-spacing:-.01em;
}
.badges{display:flex; gap:8px; align-items:center; flex-wrap:wrap;}
.badge{
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing:.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}

.tiles{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
@media (max-width: 900px){
  .tiles{grid-template-columns: 1fr;}
}
.tile{
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.tile p{margin:10px 0 0 0; color:var(--muted);}

.footer{
  border-top:1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 13px;
}

.collection-layout{
  display:grid;
  grid-template-columns: 340px 1fr;
  gap: 28px;
  align-items:start;
}
@media (max-width: 1100px){
  .collection-layout{grid-template-columns: 1fr;}
}

.filters{
  position: sticky;
  top: 92px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
@media (max-width: 1100px){
  .filters{position: static;}
}
.input{
  width:100%;
  border: none;
  border-bottom: 1px solid var(--line);
  padding: 10px 2px;
  font-size: 14px;
  outline:none;
}
.select, .chip{
  width:100%;
  margin-top: 10px;
  border:1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  font-size: 14px;
}
.filter-row{margin-top: 14px;}
.filter-row label{display:block; font-size: 12px; color: var(--muted); margin-bottom: 6px; font-family: var(--mono); text-transform: uppercase; letter-spacing:.08em;}
.smalllink{font-size:13px; color:var(--muted); cursor:pointer;}
.smalllink:hover{opacity:.72;}

.results-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 18px;
  flex-wrap:wrap;
  padding-bottom: 10px;
  border-bottom:1px solid var(--line);
  margin-bottom: 18px;
}

.results-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
@media (max-width: 1200px){
  .results-grid{grid-template-columns: repeat(3, 1fr);}
}
@media (max-width: 900px){
  .results-grid{grid-template-columns: repeat(2, 1fr);}
}
@media (max-width: 560px){
  .results-grid{grid-template-columns: 1fr;}
}

.viewer-wrap{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
}
.viewer{
  width:100%;
  min-height: 70vh;
  background:#f6f6f6;
  display:flex;
  align-items:center;
  justify-content:center;
  position: relative;
  user-select:none;
  touch-action: pan-y;
  background: white;
}
.viewer img{
  width:100%;
  height:100%;
  object-fit: contain;
  display:block;
  background: white;
}
.viewer-tip{
  position:absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius: 999px;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--muted);
}
.viewer-controls{
  display:flex;
  gap: 10px;
  padding: 12px;
  border-top:1px solid var(--line);
  justify-content:flex-end;
}

.object-layout{
  display:grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 28px;
  align-items:start;
  padding-top: 28px;
}
@media (max-width: 1100px){
  .object-layout{grid-template-columns: 1fr;}
  .viewer{min-height: 56vh;}
}
.sheet{
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.sheet .title{font-size: 26px; line-height:1.15; margin:0 0 10px 0; letter-spacing:-.01em;}
.sheet .desc{color: var(--muted); margin: 0 0 16px 0;}
.table{
  width:100%;
  border-collapse: collapse;
  margin-top: 14px;
  font-size: 14px;
}
.table tr{border-top:1px solid var(--line);}
.table td{padding: 10px 0; vertical-align:top;}
.table td:first-child{color: var(--muted); width: 42%; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing:.08em;}
.pill{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid var(--line);
  border-radius:999px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--muted);
}
.notice{
  border:1px dashed var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--muted);
  font-size: 13px;
}

.modal{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.34);
  display:none;
  align-items:center;
  justify-content:center;
  padding: 24px;
  z-index: 200;
}
.modal.open{display:flex;}
.modal-card{
  width:min(720px, 100%);
  background: #fff;
  border-radius: var(--radius);
  border:1px solid var(--line);
  padding: 18px;
}
.modal-card pre{
  background:#f6f6f6;
  border:1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  overflow:auto;
  font-family: var(--mono);
  font-size: 12px;
}

/* Sketchfab-only viewer */
.viewer{
  display:block;
  position:relative;
  background:#f6f6f6;
  min-height: 70vh;
  aspect-ratio: 16 / 9;
}

.viewer iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
  display:block;
}

/* 3D-only polish */
.badge{
  color: var(--muted);
}

.badges .badge:first-child{
  color: var(--text);
  border-color: var(--line);
}

.viewer img{
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.thumbs{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:12px;
}
.thumb{
  width:84px;
  height:84px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  background: rgba(0,0,0,.03);
  cursor:pointer;
}
.thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.thumb.active{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}