:root{
 --bg:#f6f8fc;--surface:#fff;--border:#e4e9f1;--text:#172033;--muted:#64748b;
 --blue:#0d6efd;--purple:#7c3aed;--teal:#059669;--slate:#475569;--amber:#d97706;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow-x:hidden}
.navbar{min-height:68px}
.release-hero{background:
 radial-gradient(circle at 88% 12%,rgba(124,58,237,.10),transparent 26%),
 radial-gradient(circle at 72% 72%,rgba(13,110,253,.08),transparent 30%),
 linear-gradient(180deg,#fff,#f7f9fd);border-bottom:1px solid var(--border)}
.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--blue)}
.section-block{margin-top:4rem}
.section-heading{max-width:900px}
.release-status-card{display:flex;gap:.7rem;align-items:flex-start;border:1px solid var(--border);background:rgba(255,255,255,.88);border-radius:16px;padding:.9rem 1rem;box-shadow:0 8px 24px rgba(15,23,42,.04)}
.status-dot{width:10px;height:10px;border-radius:50%;background:var(--teal);margin-top:.38rem;box-shadow:0 0 0 5px rgba(5,150,105,.10)}
.release-overview{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.metric-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:1rem;min-width:0;box-shadow:0 7px 22px rgba(15,23,42,.035)}
.metric-value{font-size:1.55rem;font-weight:800;letter-spacing:-.035em;line-height:1.1;overflow-wrap:anywhere}
.metric-label{font-size:.76rem;color:var(--muted);margin-top:.35rem}
.release-timeline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.release-card,.info-card{background:#fff;border:1px solid var(--border);border-radius:20px;padding:1.15rem;box-shadow:0 8px 28px rgba(15,23,42,.035)}
.release-card-top{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start}
.release-tag{display:inline-flex;border-radius:999px;background:#eef4ff;color:#1d4ed8;padding:.22rem .55rem;font-size:.68rem;font-weight:800}
.immutable-badge,.derived-badge{display:inline-flex;align-items:center;border-radius:999px;padding:.25rem .55rem;font-size:.68rem;font-weight:800;white-space:nowrap}
.immutable-badge{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.derived-badge{background:#f5f3ff;color:#6d28d9;border:1px solid #ddd6fe}
.release-facts{display:grid;grid-template-columns:1fr 1fr;gap:.65rem;margin-top:1rem}
.release-facts span{border:1px solid #edf1f6;background:#f8fafc;border-radius:12px;padding:.65rem;font-size:.72rem;color:#64748b}
.release-facts strong{display:block;color:#172033;font-size:1rem}
.web-layer-card{background:linear-gradient(145deg,#fff,#fbfaff)}
.download-toolbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.download-search{flex:1 1 320px;max-width:520px}
.download-filters{display:flex;gap:.45rem;flex-wrap:wrap}
.filter-chip{border:1px solid #dbe3ef;background:#fff;color:#475569;border-radius:999px;padding:.44rem .72rem;font-size:.75rem;font-weight:700}
.filter-chip:hover{border-color:#a9c2ed;color:#0d6efd}
.filter-chip.active{background:#0d6efd;border-color:#0d6efd;color:#fff}
.dataset-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.dataset-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:1rem;min-width:0;box-shadow:0 7px 22px rgba(15,23,42,.03);display:flex;flex-direction:column}
.dataset-card-head{display:flex;justify-content:space-between;gap:.75rem;align-items:flex-start}
.dataset-type{display:inline-flex;border:1px solid #dbe3ef;background:#f8fafc;color:#64748b;border-radius:999px;padding:.2rem .5rem;font-size:.64rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
.dataset-name{font-size:1rem;font-weight:800;line-height:1.25;margin-top:.6rem;overflow-wrap:anywhere}
.dataset-file{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.7rem;color:#64748b;overflow-wrap:anywhere;margin-top:.25rem}
.dataset-description{font-size:.76rem;color:#64748b;line-height:1.45;margin:.75rem 0}
.dataset-meta{display:grid;grid-template-columns:1fr 1fr;gap:.45rem;margin-top:auto}
.dataset-meta div{border-top:1px solid #edf1f6;padding-top:.5rem;min-width:0}
.dataset-meta span{display:block;font-size:.62rem;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em;font-weight:800}
.dataset-meta strong{display:block;font-size:.78rem;color:#334155;overflow-wrap:anywhere}
.dataset-actions{display:flex;gap:.5rem;margin-top:.9rem}
.dataset-actions .btn{flex:1}
.empty-state{border:1px dashed #b7c4d7;border-radius:16px;background:#f8fafc;padding:1rem;color:#64748b;text-align:center;margin-top:1rem}
.evidence-list{display:grid;gap:.85rem}
.evidence-item{border-left:3px solid #bfd4ff;padding-left:.8rem}
.evidence-item strong{display:block;font-size:.86rem}
.evidence-item p{font-size:.76rem;color:#64748b;margin:.25rem 0 0;line-height:1.45}
.release-definition{display:grid;gap:.65rem}
.release-definition>div{display:grid;grid-template-columns:145px 1fr;gap:.8rem;border-bottom:1px solid #edf1f6;padding-bottom:.55rem}
.release-definition>div:last-child{border-bottom:0;padding-bottom:0}
.release-definition dt{font-size:.72rem;color:#64748b}
.release-definition dd{font-size:.78rem;color:#334155;margin:0;font-weight:700}
.release-note-list{padding-left:1.1rem;color:#475569;font-size:.78rem;line-height:1.55}
.release-note-list li+li{margin-top:.45rem}
.site-footer{margin-top:4rem;background:#fff;border-top:1px solid var(--border)}
.skeleton{background:linear-gradient(90deg,#eef2f7,#f8fafc,#eef2f7);background-size:220% 100%;animation:shimmer 1.15s linear infinite}
.metric-card.skeleton{height:82px}
.dataset-skeleton{height:220px}
@keyframes shimmer{to{background-position:-220% 0}}
@media(max-width:1199.98px){
 .release-overview{grid-template-columns:repeat(3,minmax(0,1fr))}
 .release-timeline{grid-template-columns:1fr 1fr}
 .web-layer-card{grid-column:1/-1}
 .dataset-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:767.98px){
 .release-hero .lead{font-size:1rem}
 .section-block{margin-top:3rem}
 .release-overview{grid-template-columns:repeat(2,minmax(0,1fr))}
 .release-timeline{grid-template-columns:1fr}
 .web-layer-card{grid-column:auto}
 .dataset-grid{grid-template-columns:1fr}
 .release-facts{grid-template-columns:1fr 1fr}
 .release-definition>div{grid-template-columns:1fr;gap:.2rem}
}
@media(max-width:479.98px){
 .release-overview{grid-template-columns:1fr 1fr;gap:8px}
 .metric-card{padding:.8rem}
 .metric-value{font-size:1.3rem}
 .release-facts{grid-template-columns:1fr}
 .download-toolbar{align-items:stretch}
 .download-filters{width:100%;overflow-x:auto;flex-wrap:nowrap;padding-bottom:.15rem}
 .filter-chip{white-space:nowrap}
}
@media(max-height:520px) and (orientation:landscape){
 .release-hero .container{padding-top:1.1rem!important;padding-bottom:1.1rem!important}
 .section-block{margin-top:2rem}
 .navbar{min-height:58px}
}