:root{
  color-scheme:light;
  --ground:#F1F4F1; --surface:#FFFFFF; --sunk:#E8ECE8;
  --ink:#141E1B; --ink-2:#4E5B57; --ink-3:#7E8A85;
  --line:#D4DBD6; --line-2:#B6C0BA;
  --accent:#0B7A5E; --accent-soft:#DAEFE7; --accent-ink:#075243;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --ground:#0F1617; --surface:#18211F; --sunk:#131B1A;
    --ink:#E5ECE8; --ink-2:#A2AFAA; --ink-3:#7A8681;
    --line:#283432; --line-2:#3A4744;
    --accent:#45D3A5; --accent-soft:#10312A; --accent-ink:#8DE8C6;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#0F1617; --surface:#18211F; --sunk:#131B1A;
  --ink:#E5ECE8; --ink-2:#A2AFAA; --ink-3:#7A8681;
  --line:#283432; --line-2:#3A4744;
  --accent:#45D3A5; --accent-soft:#10312A; --accent-ink:#8DE8C6;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{
  margin:0;background:var(--ground);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  font-size:15px;line-height:1.6;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.shell{max-width:1180px;margin:0 auto;padding:36px 24px 80px;display:grid;grid-template-columns:224px minmax(0,1fr);gap:40px;align-items:start}
@media (max-width:860px){.shell{grid-template-columns:1fr;gap:28px;padding-top:28px}}

.sidehead{display:flex;align-items:center;justify-content:space-between;gap:12px}
.theme{
  font:inherit;font-family:"IBM Plex Sans Condensed","IBM Plex Sans",sans-serif;
  text-transform:uppercase;letter-spacing:.1em;font-size:11px;
  color:var(--ink-3);background:none;border:1px solid var(--line);
  padding:5px 11px;border-radius:99px;cursor:pointer;white-space:nowrap;
}
.theme:hover{color:var(--ink);border-color:var(--line-2)}
.eyebrow{
  font-family:"IBM Plex Sans Condensed","IBM Plex Sans",sans-serif;
  font-weight:500;text-transform:uppercase;letter-spacing:.12em;
  font-size:12px;color:var(--ink-3);margin:0 0 8px;
}
.side{position:sticky;top:36px}
@media (max-width:860px){.side{position:static}}
.side h2{font-size:13px;font-weight:500;color:var(--ink-3);margin:0 0 10px;text-transform:uppercase;letter-spacing:.1em;font-family:"IBM Plex Sans Condensed",sans-serif}
.side nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side nav a{
  display:block;padding:7px 10px;border-radius:7px;color:var(--ink);
  border-left:2px solid transparent;font-size:14px;
}
.side nav a:hover{background:var(--sunk);text-decoration:none}
.side nav a[data-new=true]{border-left-color:var(--accent)}
.side .count{margin:18px 0 0;font-size:12px;color:var(--ink-3)}

.masthead{margin:0 0 30px}
.masthead h1{font-size:32px;font-weight:500;letter-spacing:-.015em;margin:0 0 10px;text-wrap:balance}
.masthead p{margin:0;color:var(--ink-2);max-width:64ch}

.cards{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:20px;display:flex;flex-direction:column;gap:10px;
}
.card.newest{grid-column:1/-1;border-color:var(--line-2)}
.card .top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.card h3{margin:0;font-size:19px;font-weight:500;letter-spacing:-.01em}
.card.newest h3{font-size:23px}
.card .when{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.card p{margin:0;color:var(--ink-2);font-size:14px}
.card .why{
  margin:0;padding:12px 14px;border-radius:8px;background:var(--sunk);
  color:var(--ink-2);font-size:13px;
}
.card .why b{font-weight:500;color:var(--ink);font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;font-size:11px;display:block;margin-bottom:3px}
.card .foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:4px;flex-wrap:wrap}
.topics{display:flex;gap:6px;flex-wrap:wrap}
.topics span{
  font-family:"IBM Plex Mono",monospace;font-size:11px;padding:2px 8px;border-radius:99px;
  background:var(--sunk);color:var(--ink-3);
}
.badge{
  font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;
  font-size:11px;padding:3px 9px;border-radius:99px;background:var(--accent-soft);color:var(--accent-ink);
}
.open{font-size:14px;font-weight:500}
.side .second{margin-top:22px}

.refs{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.refs-head{margin:0 0 14px}
.refs-head h2{margin:0 0 5px;font-size:19px;font-weight:500;letter-spacing:-.01em}
.refs-head p{margin:0;color:var(--ink-2);font-size:14px;max-width:64ch}
.reflist{display:grid;gap:12px}
.ref{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  border-left:2px solid var(--accent);padding:18px 20px;
  display:flex;flex-direction:column;gap:9px;
}
.ref .top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.ref h3{margin:0;font-size:18px;font-weight:500;letter-spacing:-.01em}
.ref .when{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.ref p{margin:0;color:var(--ink-2);font-size:14px}
.ref .foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:2px}

/* ---------------- hub ---------------- */
.sections{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.seccard{
  background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--accent);
  border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:10px;
}
.seccard .top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.seccard h3{margin:0;font-size:21px;font-weight:500;letter-spacing:-.012em}
.seccard .when{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);white-space:nowrap}
.seccard p{margin:0;color:var(--ink-2);font-size:14px}
.seccard .latest{list-style:none;margin:2px 0 0;padding:10px 12px;border-radius:8px;background:var(--sunk);display:flex;flex-direction:column;gap:3px}
.seccard .latest a{font-size:14px;color:var(--ink)}
.seccard .latest a:hover{color:var(--accent)}
.seccard .open{margin-top:auto;padding-top:4px}

.recent-wrap{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.recent-wrap h2{margin:0 0 12px;font-size:19px;font-weight:500;letter-spacing:-.01em}
.recent{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.recent li{display:grid;grid-template-columns:7.5rem minmax(0,1fr) auto;gap:14px;align-items:baseline;padding:9px 0;border-bottom:1px solid var(--line)}
.recent .when{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.recent .title{font-size:15px;color:var(--ink)}
.recent .title:hover{color:var(--accent)}
.recent .kind{font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;font-size:11px;color:var(--ink-3);white-space:nowrap}
@media (max-width:600px){.recent li{grid-template-columns:1fr;gap:2px}}

.side .back{display:inline-block;margin:14px 0 4px;font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.1em;font-size:11px;color:var(--ink-3)}
.side .back:hover{color:var(--accent);text-decoration:none}
.side h2.second:first-of-type{margin-top:18px}
.related{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}

.colophon{margin-top:40px;padding-top:20px;border-top:1px solid var(--line)}
.colophon p{margin:0;font-size:13px;color:var(--ink-3);max-width:64ch}

.empty{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px;color:var(--ink-2)}
.empty code{font-family:"IBM Plex Mono",monospace;font-size:13px;background:var(--sunk);padding:2px 6px;border-radius:5px}