:root{
  --bg:#0b0c10;
  --panel:#12141c;
  --card:#0f1117;
  --text:#e9ecf1;
  --muted:#aab2c0;
  --border:rgba(255,255,255,.10);
  --border2:rgba(255,255,255,.16);
  --chip:rgba(255,255,255,.06);
  --chipOn:rgba(255,255,255,.14);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:var(--bg);
  color:var(--text);
}

.muted{color:var(--muted); font-size:13px}

.topbar{
  position:sticky; top:0; z-index:5;
  display:flex; justify-content:space-between; gap:14px;
  padding:16px 18px;
  background:rgba(11,12,16,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.brand{font-weight:750; font-size:18px}

.search{
  width:min(420px, 70vw);
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--text);
  outline:none;
}
.search:focus{border-color:var(--border2)}

.wrap{max-width:1200px; margin:0 auto; padding:18px}

.filters{
  display:flex; flex-direction:column; gap:12px;
  padding:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.02);
  border-radius:16px;
}
.filters-row{display:flex; align-items:flex-start; gap:12px}
.filters-title{width:70px; color:var(--muted); font-size:12px; padding-top:6px}

.chips{display:flex; flex-wrap:wrap; gap:8px}
.chip{
  user-select:none;
  cursor:pointer;
  padding:7px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--chip);
  color:var(--text);
  font-size:12px;
}
.chip[data-on="true"]{background:var(--chipOn); border-color:var(--border2)}

.grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(230px, 1fr));
  gap:14px;
}

.card{
  display:block;
  text-decoration:none;
  color:inherit;
  border:1px solid var(--border);
  background:rgba(255,255,255,.02);
  border-radius:16px;
  overflow:hidden;
  transition:transform .12s ease, border-color .12s ease;
}
.card:hover{transform:translateY(-2px); border-color:var(--border2)}
.thumb{
  width:100%;
  aspect-ratio:1/1;
  object-fit:contain;
  object-position:center;
  display:block;
  background:radial-gradient(circle at 30% 20%, #1a1f29, #0f1117);
 transform:scale(.88);
}

.thumb-wrapper{
  width:100%;
  aspect-ratio:1/1;
  background:var(--card);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.card-meta{padding:12px 12px 14px}
.card-title{font-weight:700}
.card-sub{margin-top:6px; color:var(--muted); font-size:13px; line-height:1.35}
.card-tags{margin-top:10px; display:flex; flex-wrap:wrap; gap:6px}
.badge{
  padding:5px 8px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  font-size:11px;
  color:var(--muted);
}

/* viewer */
.viewer-body{overflow:hidden}
.viewer-topbar{
  position:fixed; left:0; right:0; top:0; z-index:10;
  display:flex; gap:12px; align-items:center;
  padding:14px 16px;
  background:rgba(11,12,16,.86);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(10px);
}
.back{color:var(--text); text-decoration:none; opacity:.9}
.back:hover{opacity:1}
.viewer-title{color:var(--muted); font-size:13px}

.viewer-main{
  height:100%;
  padding-top:54px;
  display:grid;
  grid-template-columns:1fr 340px;
}
#c{width:100%; height:100%; display:block}

.panel{
  border-left:1px solid var(--border);
  background:var(--panel);
  padding:16px;
  overflow:auto;
}
.panel h2{margin:0 0 8px; font-size:18px}
.panel p{margin:0 0 12px; color:var(--muted); line-height:1.45}

.meta{
  display:flex; flex-direction:column; gap:8px;
  margin-top:10px;
  border-top:1px solid var(--border);
  padding-top:10px;
}
.meta > div{display:flex; justify-content:space-between; gap:10px; font-size:13px}
.k{color:var(--muted)}
.small{color:var(--muted); font-size:12px; line-height:1.4}

@media (max-width: 920px){
  .viewer-main{grid-template-columns:1fr}
  .panel{display:none}
}

.desc-box{
  margin: 10px 0 14px;
  padding: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius: 14px;
}

.desc-label{
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.desc-body{
  margin: 0;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  opacity: .92;
}

/* --- Supersplat-style sidebar --- */
.shell{
  display:grid;
  grid-template-columns: 220px 1fr;
  min-height:100vh;
}
.sidebar{
  position:sticky;
  top:0;
  height:100vh;
  padding:16px 14px;
  border-right:1px solid var(--border);
  background: rgba(11,12,16,.92);
  backdrop-filter: blur(10px);
}
.sb-brand{
  font-weight:800;
  letter-spacing:.2px;
  margin:4px 6px 14px;
}
.sb-nav{ display:flex; flex-direction:column; gap:8px; padding:0 4px; }
.sb-item{
  display:block;
  padding:10px 10px;
  border-radius:12px;
  text-decoration:none;
  color:var(--text);
  border:1px solid transparent;
  opacity:.9;
}
.sb-item:hover{ border-color: var(--border2); opacity:1; background: rgba(255,255,255,.03); }
.sb-item-on{
  border-color: var(--border2);
  background: rgba(255,255,255,.05);
  opacity:1;
}
.sb-footer{ margin-top:auto; padding:12px 8px; font-size:12px; line-height:1.35; }
.content{ min-width:0; }

/* push topbar to align with content area */
.shell .topbar{
  left:0;
}
/* make the topbar span only the content column */
.shell .topbar{
  position: sticky;
  top:0;
}
.shell .topbar{
  grid-column: 2 / 3;
}

/* Wrap lives inside content now; keep padding but allow full width */
.shell .wrap{ max-width: 1200px; }

/* Viewer page: allow canvas to use full content column */
.shell .viewer-topbar{
  left:220px;
}
.shell .viewer-main{
  padding-left:0;
}
@media (max-width: 920px){
  .shell{ grid-template-columns: 1fr; }
  .sidebar{ display:none; }
  .shell .viewer-topbar{ left:0; }
}

/* Download button */
.download-btn{
  display:inline-block;
  margin-top:14px;
  padding:10px 14px;
  border-radius:12px;
  text-decoration:none;
  border:1px solid var(--border2);
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-size:13px;
  transition:.15s ease;
}
.download-btn:hover{
  background: rgba(255,255,255,.10);
}

/* Auto 3D thumbnail canvas */
.thumb3d{
  background: var(--card);
  display:block;
}

/* Convert page */
.convert-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
.convert-card{
  border:1px solid var(--border);
  background: rgba(255,255,255,.02);
  border-radius:16px;
  padding:14px;
  min-height: 260px;
}
.convert-card h3{
  margin:0 0 12px;
  font-size:16px;
}
.dropzone{
  position:relative;
  border:1px dashed var(--border2);
  border-radius:16px;
  padding:22px 16px;
  background: rgba(255,255,255,.02);
  text-align:center;
  cursor:pointer;
}
.dropzone-on{
  border-color: rgba(255,255,255,.35);
  background: rgba(255,255,255,.04);
}
.drop-icon{
  font-size:28px;
  opacity:.9;
  margin-bottom:8px;
}
.drop-title{ font-weight:700; margin-bottom:4px; }
.drop-types{ margin-top:8px; }
.file{ display:none; }

.field{ display:block; margin-top:10px; }
.field-label{ color: var(--muted); font-size:12px; margin-bottom:6px; }
.input, .select{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text);
  outline:none;
}
.input:focus, .select:focus{ border-color: var(--border2); }

.btn{
  width:100%;
  padding:11px 12px;
  border-radius:12px;
  border:1px solid var(--border2);
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-size:13px;
  cursor:pointer;
}
.btn:disabled{ opacity:.5; cursor:not-allowed; }
.btn-ghost{ background: rgba(255,255,255,.02); border-color: var(--border); }
.btn-primary{ background: rgba(255,140,40,.85); border-color: rgba(255,140,40,.85); }
.btn-primary:hover{ background: rgba(255,140,40,1); }

@media (max-width: 1000px){
  .convert-grid{ grid-template-columns: 1fr; }
}


/* Interactive auto 3D thumbnails */
.thumb3d { cursor: grab; }
.thumb3d:active { cursor: grabbing; }


/* Splat placeholder thumb */
.thumb-placeholder{
  display:flex;
  align-items:center;
  justify-content:center;
  background: radial-gradient(120% 120% at 20% 10%, rgba(255,255,255,.12), rgba(255,255,255,.02) 55%, rgba(255,255,255,.00));
  border-bottom:1px solid rgba(255,255,255,.06);
  position:relative;
}
.thumb-placeholder .ph{
  font-weight:800;
  letter-spacing:.25em;
  font-size:12px;
  opacity:.85;
  padding:10px 12px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:999px;
  background: rgba(255,255,255,.06);
}