.atlas-hero{padding:clamp(110px,13vw,180px) 0 clamp(70px,8vw,105px);background:linear-gradient(180deg,var(--paper),var(--paper-2));border-bottom:1px solid var(--line);overflow:hidden}
.atlas-hero .wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:clamp(38px,7vw,92px);align-items:end}
.atlas-hero__copy .display{max-width:12ch}.atlas-hero__copy .lede{max-width:68ch;margin-top:24px}
.atlas-switch{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.atlas-stats{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);background:rgba(255,255,255,.42)}
.atlas-stats div{padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.atlas-stats div:nth-child(2n){border-right:0}.atlas-stats div:nth-last-child(-n+2){border-bottom:0}
.atlas-stats b{display:block;font:300 clamp(2rem,4vw,3.2rem) var(--serif);color:var(--gold)}
.atlas-stats span{display:block;margin-top:5px;font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
.atlas-section{padding:clamp(82px,9vw,125px) 0;border-bottom:1px solid var(--line-soft)}
.atlas-section--graph{background:linear-gradient(180deg,var(--paper-2),var(--paper))}
.atlas-section--model{background:var(--deep);color:var(--paper)}
.atlas-head{max-width:780px;margin-bottom:38px}.atlas-head .lede{margin-top:16px}
.atlas-routes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.atlas-route{background:var(--paper);padding:clamp(26px,3.5vw,42px);position:relative}
.atlas-route__num{font-size:.65rem;letter-spacing:.16em;color:var(--gold)}
.atlas-route h3{font-size:clamp(1.35rem,2vw,1.7rem);margin:14px 0 10px}.atlas-route>p{color:var(--ink-soft)}
.atlas-route ol{list-style:none;margin:24px 0 0;padding:0;border-top:1px solid var(--line-soft)}
.atlas-route li{display:flex;gap:14px;justify-content:space-between;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line-soft)}
.atlas-route li a{color:var(--navy);font-weight:600}.atlas-route li span{font-size:.67rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.atlas-graph{border:1px solid var(--line);background:rgba(255,255,255,.45)}
.atlas-graph__controls{display:flex;gap:7px;flex-wrap:wrap;padding:15px;border-bottom:1px solid var(--line)}
.atlas-graph__controls button,.atlas-filter-buttons button{appearance:none;border:1px solid var(--line);background:var(--paper);color:var(--navy);padding:8px 11px;font:600 .68rem var(--body);letter-spacing:.05em;cursor:pointer}
.atlas-graph__controls button.is-active,.atlas-filter-buttons button.is-active{background:var(--navy);color:white;border-color:var(--navy)}
.atlas-graph__field{display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.32fr);min-height:620px}
.atlas-graph svg{width:100%;height:100%;min-height:620px;overflow:visible}
.atlas-edge{fill:none;stroke:rgba(30,64,101,.18);stroke-width:1.35;vector-effect:non-scaling-stroke}.atlas-edge.is-muted{opacity:.16}
.atlas-edge[data-type="continues"]{stroke:rgba(154,106,18,.48);stroke-width:1.8}
.atlas-node{cursor:pointer;outline:none}.atlas-node__halo{fill:rgba(154,106,18,.035);stroke:rgba(154,106,18,.24);stroke-width:1;vector-effect:non-scaling-stroke;transition:.22s ease}.atlas-node__core{fill:var(--paper);stroke:var(--navy);stroke-width:1.55;vector-effect:non-scaling-stroke;transition:.22s ease}.atlas-node.notebook .atlas-node__core{stroke:var(--gold)}.atlas-node.is-active .atlas-node__core{fill:var(--gold);stroke:var(--gold)}.atlas-node.is-active .atlas-node__halo{fill:rgba(154,106,18,.08);stroke:rgba(154,106,18,.5)}.atlas-node.is-muted{opacity:.42}.atlas-node:hover .atlas-node__core,.atlas-node:focus .atlas-node__core{r:18}.atlas-node:hover .atlas-node__halo,.atlas-node:focus .atlas-node__halo{r:33;stroke:rgba(154,106,18,.55)}
.atlas-node text{font:650 14px var(--body);fill:var(--ink);pointer-events:none;paint-order:stroke;stroke:rgba(251,245,236,.98);stroke-width:4px;stroke-linejoin:round}.atlas-node .atlas-node__kind{font-size:10px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;fill:var(--muted);stroke-width:3px}
.atlas-graph__detail{padding:28px;border-left:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;background:rgba(255,255,255,.48)}
.atlas-graph__detail span{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.atlas-graph__detail strong{font:300 1.7rem var(--serif);color:var(--navy);margin-top:8px}.atlas-graph__detail p{color:var(--ink-soft);margin-top:12px;line-height:1.65}
.atlas-detail__links{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}.atlas-detail__links a{font-size:.78rem;font-weight:700}
.atlas-filters{display:grid;grid-template-columns:auto minmax(170px,.25fr) minmax(240px,.4fr);gap:14px;align-items:end;padding:18px;border:1px solid var(--line);background:var(--paper-2)}
.atlas-filter-buttons{display:flex;gap:7px;flex-wrap:wrap}.atlas-filters label{display:grid;gap:6px;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.atlas-filters select,.atlas-filters input{width:100%;border:1px solid var(--line);background:var(--paper);padding:11px 12px;color:var(--ink);font:inherit}
.atlas-result-count{margin:18px 0;color:var(--muted);font-size:.82rem}
.atlas-corpus{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.atlas-card{background:var(--paper);padding:clamp(24px,3vw,36px);min-height:290px;display:flex;flex-direction:column}
.atlas-card[hidden]{display:none}.atlas-card__meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.67rem;letter-spacing:.06em;text-transform:uppercase}
.atlas-card h3{font-size:1.35rem;margin:17px 0 8px}.atlas-card h3 a{color:var(--navy)}.atlas-card__subtitle{font-weight:600;color:var(--ink);margin-bottom:10px}.atlas-card>p:last-of-type{color:var(--ink-soft);line-height:1.65}
.atlas-card__tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;padding-top:22px}.atlas-card__tags span{border:1px solid var(--line-soft);padding:5px 7px;font-size:.62rem;color:var(--muted)}
.atlas-card__actions{display:flex;gap:14px;margin-top:18px}.atlas-card__actions a{font-size:.8rem;font-weight:700}
.atlas-model{max-width:800px}.atlas-model .eyebrow{color:var(--gold-on-deep)}.atlas-model .h-section{color:white}.atlas-model p{color:rgba(255,255,255,.73);line-height:1.8}.atlas-model .link-arrow{display:inline-block;margin-top:20px;color:var(--gold-on-deep)}
.research-context{max-width:960px;margin:34px auto;padding:26px;border:1px solid var(--line);background:var(--paper-2)}
.research-context__head{display:flex;justify-content:space-between;gap:20px;align-items:baseline}.research-context__head span{font-size:.66rem;letter-spacing:.15em;text-transform:uppercase;color:var(--gold)}.research-context__head a{font-size:.78rem;font-weight:700}
.research-context h3{font-size:1.35rem;margin:10px 0 4px}.research-context p{color:var(--ink-soft);line-height:1.6}
.research-context__links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:18px}.research-context__links a{display:block;border-top:1px solid var(--line-soft);padding-top:9px;color:var(--navy)}.research-context__links small{display:block;color:var(--muted);font-size:.66rem;text-transform:uppercase;letter-spacing:.08em;margin-top:3px}
@media(max-width:900px){.atlas-hero .wrap{grid-template-columns:1fr}.atlas-routes,.atlas-corpus{grid-template-columns:1fr}.atlas-graph__field{grid-template-columns:1fr}.atlas-graph__detail{border-left:0;border-top:1px solid var(--line)}.atlas-filters{grid-template-columns:1fr}.research-context__links{grid-template-columns:1fr}}
@media(max-width:600px){.atlas-stats{grid-template-columns:1fr}.atlas-stats div{border-right:0}.atlas-stats div:nth-last-child(-n+2){border-bottom:1px solid var(--line)}.atlas-stats div:last-child{border-bottom:0}.atlas-route li{display:block}.atlas-route li span{display:block;margin-top:4px}.atlas-graph__field{min-height:500px}.atlas-graph svg{min-height:500px}}

@media(max-width:600px){.atlas-node text{font-size:12.5px}.atlas-node .atlas-node__kind{font-size:9px}.atlas-edge{stroke-width:1.6}.atlas-edge[data-type="continues"]{stroke-width:2}}

.atlas-graph__field{position:relative}
.atlas-graph__field::before{content:"conceptual / notebook";position:absolute;left:22px;top:18px;font-size:.6rem;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);opacity:.72;pointer-events:none}
@media(min-width:901px){.atlas-graph__detail{min-width:265px}}

/* Progressive-disclosure graph: quiet by default, relationships on selection. */
.atlas-series-rail{stroke:rgba(30,64,101,.10);stroke-width:1;stroke-dasharray:2 7;vector-effect:non-scaling-stroke}
.atlas-series-label{font:650 12px var(--body);fill:var(--navy);letter-spacing:.02em}
.atlas-edge{opacity:.035;transition:opacity .18s ease,stroke .18s ease,stroke-width .18s ease}
.atlas-edge.is-selected{opacity:.68;stroke:rgba(30,64,101,.42);stroke-width:1.8}
.atlas-edge.is-selected[data-type="continues"]{stroke:rgba(154,106,18,.64);stroke-width:2.2}
.atlas-edge.is-muted{opacity:.012}
.atlas-node{transition:opacity .18s ease}
.atlas-node.is-related .atlas-node__halo{fill:rgba(154,106,18,.07);stroke:rgba(154,106,18,.48)}
.atlas-node.is-related .atlas-node__core{stroke:var(--gold)}
.atlas-node__label{opacity:.72;transition:opacity .18s ease,font-size .18s ease}
.atlas-node.publications .atlas-node__label{font-size:12px}
.atlas-node.notebook .atlas-node__label{font-size:11px}
.atlas-node.is-active .atlas-node__label,.atlas-node.is-related .atlas-node__label,.atlas-node:hover .atlas-node__label,.atlas-node:focus .atlas-node__label{opacity:1}
.atlas-node__kind{opacity:.38}
.atlas-node.is-active .atlas-node__kind,.atlas-node:hover .atlas-node__kind,.atlas-node:focus .atlas-node__kind{opacity:.85}