:root { --paper:#f5f0e8; --ink:#201b16; --muted:#6b6258; --line:#d8cfc0; --sage:#718a73; --gold:#b8923a; }
.atlas-nav { position:relative; z-index:50; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:13px clamp(18px,4vw,48px); background:rgba(250,248,244,.94); border-bottom:1px solid var(--line); font-family:'DM Sans',sans-serif; color:var(--ink); }
.atlas-nav a { color:inherit; text-decoration:none; }
.atlas-brand { font-family:'Playfair Display','Libre Baskerville',Georgia,serif; font-size:18px; font-weight:700; letter-spacing:-.03em; white-space:nowrap; }
.atlas-brand span { color:var(--sage); }
.atlas-links { display:flex; align-items:center; justify-content:flex-end; flex-wrap:wrap; gap:8px 20px; }
.atlas-links a { font-size:12px; color:var(--muted); border-bottom:1px solid transparent; padding:5px 0; }
.atlas-links a:hover,.atlas-links a[aria-current="page"] { color:var(--ink); border-color:var(--gold); }
.atlas-source-note { max-width:960px; margin:38px auto 0; padding:18px 22px; border:1px solid var(--line); background:rgba(255,255,255,.6); color:var(--muted); font:12px/1.65 'DM Sans',sans-serif; }
.atlas-source-note strong { color:var(--ink); }
.atlas-source-note a { color:#546c55; text-underline-offset:2px; }
@media(max-width:620px){.atlas-nav { align-items:flex-start; flex-direction:column; }.atlas-links { justify-content:flex-start; gap:4px 16px; }}
.atlas-subnav { display:flex; align-items:center; justify-content:center; flex-wrap:wrap; gap:8px 18px; padding:9px 18px; background:#eee8dc; border-bottom:1px solid var(--line); font:11px/1.5 'DM Sans',sans-serif; }
.atlas-subnav span { font-family:'DM Mono',monospace; letter-spacing:.11em; text-transform:uppercase; color:#837154; font-size:10px; }
.atlas-subnav a { color:#6b6258; text-decoration:none; border-bottom:1px solid transparent; }
.atlas-subnav a:hover,.atlas-subnav a[aria-current="page"] { color:var(--ink); border-color:var(--gold); }