/* Shared chrome for the Timshel discovery set.
   All selectors are prefixed sn-/site-/hub- so they cannot collide with the
   per-document styles, which each page keeps in its own <style> block. */

:root{
  --sn-h:46px;
  --sn-ink:#14191f;
  --sn-ink2:#3d4650;
  --sn-ink3:#6c7681;
  --sn-paper:#e7ebe6;
  --sn-card:#fbfaf6;
  --sn-rule:#c3cbc4;
  --sn-rule2:#dfe4de;
  --sn-accent:#c8892c;
  --sn-mono:"Courier New",Courier,monospace;
  --sn-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

/* ---------- top bar ---------- */

.sitenav{
  position:sticky;top:0;z-index:900;
  background:var(--sn-ink);color:#e7ebe6;
  font-family:var(--sn-mono);
  box-shadow:0 1px 0 rgba(0,0,0,.5);
}
.sitenav *{box-sizing:border-box}
.sitenav-in{
  max-width:1240px;margin:0 auto;padding:0 22px;
  display:flex;align-items:stretch;gap:20px;height:var(--sn-h);
}
.sitenav-home{
  display:flex;align-items:center;gap:9px;flex:0 0 auto;
  color:#fff;text-decoration:none;letter-spacing:.14em;text-transform:uppercase;font-size:12px;
}
.sitenav-mark{display:block;width:18px;height:21px;flex:0 0 auto}
.sitenav-home b{font-weight:700}
.sitenav-home span{color:#7d8790;font-size:10px;letter-spacing:.18em}
.sitenav-home:hover span{color:#a9b2ba}

.sitenav-list{
  display:flex;align-items:stretch;list-style:none;margin:0;padding:0;
  overflow-x:auto;scrollbar-width:none;
}
.sitenav-list::-webkit-scrollbar{display:none}
.sitenav-list a{
  display:flex;align-items:center;gap:7px;height:100%;padding:0 12px;
  font-size:11px;letter-spacing:.11em;text-transform:uppercase;white-space:nowrap;
  color:#9aa4ac;text-decoration:none;border-bottom:2px solid transparent;
}
.sitenav-list a:hover{color:#fff;background:rgba(255,255,255,.07)}
.sitenav-list a[aria-current="page"]{color:#fff;background:rgba(255,255,255,.06);border-bottom-color:var(--sn-accent)}
.sitenav-list .sn-n{font-size:9.5px;letter-spacing:.1em;color:#6b757d}
.sitenav-list a[aria-current="page"] .sn-n{color:var(--sn-accent)}
.sitenav a:focus-visible{outline:2px solid var(--sn-accent);outline-offset:-2px}

@media (max-width:720px){
  .sitenav-in{gap:10px;padding:0 12px;position:relative}
  .sitenav-home span{display:none}
  /* hint that the document list scrolls */
  .sitenav-in::after{
    content:"";position:absolute;right:0;top:0;bottom:0;width:24px;pointer-events:none;
    background:linear-gradient(90deg,rgba(20,25,31,0),var(--sn-ink));
  }
}

/* ---------- previous / next strip ---------- */

.sitefoot{
  max-width:1240px;margin:54px auto 0;padding:0 22px 54px;
  font-family:var(--sn-mono);
  display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:stretch;
}
.sitefoot a{
  display:block;text-decoration:none;color:var(--sn-ink);
  border:1px solid var(--sn-rule);background:var(--sn-card);padding:12px 15px;
}
.sitefoot a:hover{border-color:var(--sn-ink);background:#fff}
.sitefoot a:focus-visible{outline:2px solid var(--sn-accent);outline-offset:1px}
.sitefoot span{
  display:block;font-size:9.5px;letter-spacing:.17em;text-transform:uppercase;
  color:var(--sn-ink3);margin-bottom:4px;
}
.sitefoot b{display:block;font-size:13.5px;font-weight:700;letter-spacing:.01em;line-height:1.3}
.sitefoot .sf-next{text-align:right}
.sitefoot .sf-all{
  align-self:center;font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;
  border:0;background:none;color:var(--sn-ink3);padding:12px 14px;
}
.sitefoot .sf-all:hover{background:none;color:var(--sn-ink);text-decoration:underline}
.sitefoot .sf-empty{border:1px dashed var(--sn-rule2);background:none}

@media (max-width:720px){
  .sitefoot{grid-template-columns:1fr;padding-bottom:34px}
  .sitefoot .sf-next{text-align:left}
  .sitefoot .sf-empty{display:none}
}

@media print{.sitenav,.sitefoot{display:none}}

/* ---------- index (hub) page ---------- */

.hub-body{
  margin:0;background:var(--sn-paper);color:var(--sn-ink);
  font-family:var(--sn-sans);font-size:15px;line-height:1.5;
  background-image:repeating-linear-gradient(0deg,rgba(20,25,31,.028) 0 1px,transparent 1px 26px);
}
.hub-wrap{max-width:1080px;margin:0 auto;padding:34px 22px 20px}
.hub-masthead{border-top:3px solid var(--sn-ink);padding-top:14px}
.hub-eyebrow{
  font-family:var(--sn-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--sn-ink3);margin:0 0 14px;
}
.hub-logo{
  display:block;width:min(280px,72vw);height:auto;margin:0 0 18px;
}
.hub-wrap h1{
  font-family:var(--sn-mono);font-weight:700;font-size:clamp(22px,3.6vw,32px);
  letter-spacing:-.01em;line-height:1.08;margin:0 0 12px;text-transform:uppercase;
}
.hub-wrap h1 .thin{color:var(--sn-ink3);font-weight:400}
.hub-deck{max-width:66ch;margin:0 0 22px;color:var(--sn-ink2);font-size:16.5px}

.hub-control{display:flex;flex-wrap:wrap;border:1px solid var(--sn-rule);background:var(--sn-card);font-family:var(--sn-mono);font-size:11.5px}
.hub-control div{padding:9px 13px;border-right:1px solid var(--sn-rule);flex:1 1 auto}
.hub-control div:last-child{border-right:0}
.hub-control b{display:block;color:var(--sn-ink3);font-weight:400;letter-spacing:.14em;text-transform:uppercase;font-size:9.5px;margin-bottom:3px}
.hub-stamp{color:#9e1b22;font-weight:700;letter-spacing:.1em}

.hub-rule{height:1px;margin:40px 0 24px;background-image:linear-gradient(90deg,var(--sn-ink3) 0 6px,transparent 6px 12px);background-size:12px 1px;opacity:.45}
.hub-wrap h2{font-family:var(--sn-mono);font-size:13px;text-transform:uppercase;letter-spacing:.16em;margin:0 0 14px;color:var(--sn-ink2);font-weight:700}

.hub-docs{list-style:none;margin:0 0 10px;padding:0;border-top:1px solid var(--sn-rule)}
.hub-doc{border-bottom:1px solid var(--sn-rule)}
.hub-doc > a{
  display:grid;grid-template-columns:64px 1fr 190px;gap:0 20px;align-items:start;
  padding:18px 18px 18px 16px;text-decoration:none;color:inherit;background:var(--sn-card);
  border-left:3px solid var(--sn-rule);
}
.hub-doc > a:hover{background:#fff;border-left-color:var(--sn-accent)}
.hub-doc > a:focus-visible{outline:2px solid var(--sn-accent);outline-offset:-2px}
.hub-doc .hd-n{font-family:var(--sn-mono);font-size:12px;letter-spacing:.12em;color:var(--sn-ink3);padding-top:3px}
.hub-doc h3{margin:0 0 5px;font-size:18px;font-weight:700;letter-spacing:-.005em}
.hub-doc .hd-kicker{font-family:var(--sn-mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--sn-ink3);display:block;margin-bottom:5px}
.hub-doc p{margin:0;font-size:13.8px;color:var(--sn-ink2);line-height:1.5;max-width:62ch}
.hub-doc .hd-meta{font-family:var(--sn-mono);font-size:11px;color:var(--sn-ink3);line-height:1.7;padding-top:2px}
.hub-doc .hd-meta em{display:block;font-style:normal;color:var(--sn-ink2)}
.hub-doc .hd-tag{
  display:inline-block;font-family:var(--sn-mono);font-size:9.5px;letter-spacing:.13em;
  text-transform:uppercase;padding:2px 6px;border:1px solid var(--sn-accent);color:#8a5c14;margin-left:8px;
  vertical-align:2px;
}
@media (max-width:820px){
  .hub-doc > a{grid-template-columns:44px 1fr;gap:0 14px}
  .hub-doc .hd-meta{grid-column:2;padding-top:9px}
}

.hub-panel{border:1px solid var(--sn-rule);background:var(--sn-card);padding:22px 24px;margin-top:34px}
.hub-panel ul{margin:0;padding-left:18px}
.hub-panel li{font-size:13.6px;color:var(--sn-ink2);margin-bottom:7px;line-height:1.5}
.hub-panel li:last-child{margin-bottom:0}
.hub-panel code,.hub-src code{font-family:var(--sn-mono);font-size:12.5px;background:#fff;border:1px solid var(--sn-rule2);padding:1px 5px}
.hub-panel a,.hub-src a{color:#8a5c14}

.hub-src{margin-top:26px;font-family:var(--sn-mono);font-size:11.5px;color:var(--sn-ink3);line-height:2}
.hub-src b{display:block;letter-spacing:.16em;text-transform:uppercase;font-size:9.5px;color:var(--sn-ink3);font-weight:400;margin-bottom:4px}
.hub-src a{text-decoration:none;border-bottom:1px solid var(--sn-rule)}
.hub-src a:hover{color:var(--sn-ink);border-bottom-color:var(--sn-ink)}

.hub-footer{margin-top:40px;border-top:3px solid var(--sn-ink);padding-top:12px;font-family:var(--sn-mono);font-size:11px;color:var(--sn-ink3);letter-spacing:.06em}