/* ============================================================================
   AI Hub — Space Black.

   Two stones. Emerald is the accent everywhere; ruby is reserved for entries I
   built, so the second colour means something instead of decorating.

   Ruby cannot be text. #C4304A is 3.65:1 on this ground and #D93C57 is 4.46:1 —
   both under AA — and every red that passes stops looking like ruby. So ruby is
   a fill (white on it is 5.43:1) and --ruby-tx is held back for the rare case it
   has to be type. Red/green is also the pair colour-blind readers lose first, so
   the two never encode the same axis: emerald is chrome, ruby means "mine", and
   the mine pill carries the word as well as the colour.

   This departs from ~/.claude/skills/brand, which is a light kit built on Muted
   Blue. Nothing here overrides it — this is the site's palette, not the brand's.
   ========================================================================= */
:root{
  --bg:#0a0a0a;
  --bg-2:#0f0f0f;
  --card:#111111;
  --card-hi:#141414;
  --line:#1f1f1f;
  --line-2:#262626;
  --line-3:#333333;
  --fg:#ffffff;
  --muted:#a3a3a3;
  --dim:#6b6b6b;
  --accent:#2ECC94;                    /* emerald   9.60:1 — safe as text      */
  --accent-hi:#7FE0BC;                 /*          12.53:1                     */
  --accent-dim:rgba(46,204,148,.12);
  --ruby:#C4304A;                      /* FILL ONLY 3.65:1 — never type        */
  --ruby-tx:#E85C75;                   /*           5.86:1 — ruby as type      */
  --warm:#E0A33E;                      /* amber     8.94:1 — stale, not ruby   */

  --f-brand:'Montserrat','Helvetica Neue',Arial,sans-serif;
  --f-ui:'Inter',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-ui);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;min-height:100vh;display:flex;flex-direction:column}
main{flex:1 0 auto}
h1,h2,h3,h4{margin:0;line-height:1.14;letter-spacing:-.025em;text-wrap:balance;
  font-weight:700}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
img{max-width:100%}
/* A class that sets display beats the UA's [hidden]{display:none}. The cards set
   display:flex, so without this the search hides nothing at all. */
[hidden]{display:none!important}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:760px}
@media(min-width:640px){.wrap{padding:0 24px}}
@media(min-width:1024px){.wrap{padding:0 32px}}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:var(--card);padding:10px 16px;
  border:1px solid var(--line-3);border-radius:var(--r);z-index:100}

code{font-family:var(--f-mono);font-size:.87em;background:var(--card-hi);
  border:1px solid var(--line);padding:.1em .38em;border-radius:5px}
pre{background:#0d0d0d;border:1px solid var(--line);border-radius:var(--r);
  padding:18px 20px;overflow-x:auto;margin:0 0 1.3em;font-size:13px;line-height:1.62}
pre code{background:none;border:0;padding:0;font-size:inherit}
hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* ------------------------------------------------------------------ nav -- */
header.site{position:sticky;top:0;z-index:50;background:var(--bg);
  border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px}
@media(min-width:1024px){header.site .wrap{height:80px}}
.logo{display:flex;align-items:center;gap:11px}
.logo .mark{flex:none;display:block}
.logo .name{font-family:var(--f-brand);font-size:19px;font-weight:700;
  letter-spacing:-.02em;white-space:nowrap}
header.site nav{display:none;gap:4px}
@media(min-width:900px){header.site nav{display:flex}}
header.site nav a{font-size:14px;font-weight:500;color:var(--muted);padding:8px 13px;
  border-radius:6px;transition:color .18s,background .18s}
header.site nav a:hover{color:var(--fg);background:var(--card-hi)}
.ghost{font-family:var(--f-mono);font-size:12.5px;color:var(--muted);
  border:1px solid var(--line-2);border-radius:6px;padding:8px 14px;
  transition:border-color .18s,color .18s;white-space:nowrap}
.ghost:hover{border-color:var(--line-3);color:var(--fg)}

/* ----------------------------------------------------------------- hero -- */
.hero{border-bottom:1px solid var(--line);padding:66px 0 50px;position:relative;
  overflow:hidden}
.hero::before{content:'';position:absolute;inset:-40% 40% 20% -20%;
  background:radial-gradient(closest-side,rgba(46,204,148,.09),transparent 70%);
  pointer-events:none}
@media(min-width:1024px){.hero{padding:86px 0 64px}}
.hero .inner{position:relative;max-width:790px}
.hero h1{font-family:var(--f-brand);font-size:clamp(34px,5.6vw,60px)}
.hero h1 span{display:block;color:var(--accent)}

/* ------------------------------------------------------- search + filters -- */
.tools{padding:34px 0 0}
.controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.searchbox{position:relative;flex:1 1 320px;display:flex;align-items:center}
.searchbox svg{position:absolute;left:15px;width:17px;height:17px;pointer-events:none;
  fill:none;stroke:var(--dim);stroke-width:2;stroke-linecap:round}
.searchbox input{width:100%;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--r);color:var(--fg);font-family:var(--f-ui);font-size:15px;
  padding:13px 40px 13px 42px;transition:border-color .18s,background .18s}
.searchbox input::placeholder{color:var(--dim)}
.searchbox input:focus{outline:none;border-color:var(--accent);background:var(--card-hi)}
.searchbox input::-webkit-search-cancel-button{display:none}
.searchbox #clear{position:absolute;right:8px;width:26px;height:26px;border:0;border-radius:6px;
  background:transparent;color:var(--dim);font-size:19px;line-height:1;cursor:pointer}
.searchbox #clear:hover{color:var(--fg);background:var(--line-2)}

.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.filters.tagrow{margin-bottom:26px;padding-top:2px}
.f{border:1px solid var(--line-2);background:var(--card);color:var(--muted);cursor:pointer;
  font-family:var(--f-ui);font-size:13px;font-weight:500;border-radius:999px;padding:6px 14px;
  transition:.16s}
.f:hover{border-color:var(--line-3);color:var(--fg)}
.f span{font-family:var(--f-mono);font-size:11px;color:var(--dim);margin-left:5px}
.f.on{background:var(--accent-dim);border-color:rgba(46,204,148,.4);color:var(--accent-hi)}
.f.on span{color:var(--accent)}
.f.t{font-family:var(--f-mono);font-size:12px;padding:5px 12px;color:var(--dim)}
.f.t::before{content:'#';opacity:.55;margin-right:1px}
.f.t:hover{color:var(--muted)}
.f.t.on{color:var(--accent-hi)}

#none{padding:34px 0 10px}
#none button{background:none;border:0;color:var(--accent-hi);cursor:pointer;
  font-family:var(--f-mono);font-size:14px;text-decoration:underline;padding:0}

/* -------------------------------------------------------------- sections -- *//* -------------------------------------------------------------- sections -- */

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}

.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:22px;display:flex;flex-direction:column;gap:11px;
  transition:border-color .2s,background .2s,transform .2s}
.card:hover{border-color:var(--line-3);background:var(--card-hi);transform:translateY(-2px)}
.card .top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card h3{font-size:18.5px;letter-spacing:-.015em}
.card:hover h3{color:var(--accent-hi)}
.card .what{color:var(--muted);font-size:14.5px;margin:0}
.card .tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);background:var(--card-hi);
  border:1px solid var(--line);border-radius:4px;padding:2px 7px}
.tag::before{content:'#';opacity:.5}

.card .foot{margin-top:auto;padding-top:15px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--f-mono);font-size:11.5px;color:var(--dim)}
.card .foot .d{color:var(--muted);font-variant-numeric:tabular-nums}
.card .foot .d.stale{color:var(--warm)}

.pill{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.07em;
  text-transform:uppercase;color:var(--dim);border:1px solid var(--line-2);
  border-radius:5px;padding:3px 8px;white-space:nowrap}
.pill.mine{color:#fff;border-color:transparent;background:var(--ruby)}

/* ---------------------------------------------------------------- entry -- */
.entry{padding:52px 0 0}
.crumb{font-family:var(--f-mono);font-size:12.5px;color:var(--dim);margin:0 0 22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--fg)}
.entry h1{font-family:var(--f-brand);font-size:clamp(28px,4.4vw,44px)}
.entry .lede{color:var(--muted);font-size:18px;margin:18px 0 0;max-width:60ch}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:0;margin:34px 0 0;border:1px solid var(--line);border-radius:var(--r);
  background:var(--card);overflow:hidden}
.facts > div{padding:15px 18px;border-right:1px solid var(--line)}
.facts > div:last-child{border-right:0}
.facts dt{font-family:var(--f-mono);font-size:11px;letter-spacing:.09em;
  text-transform:uppercase;color:var(--dim)}
.facts dd{margin:4px 0 0;font-size:15px;font-weight:600;
  font-variant-numeric:tabular-nums}
.facts dd.stale{color:var(--warm)}
.ext{display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-family:var(--f-mono);font-size:13px;color:var(--accent-hi);
  border:1px solid rgba(46,204,148,.28);background:var(--accent-dim);
  border-radius:var(--r);padding:10px 15px;word-break:break-all;transition:.18s}
.ext:hover{border-color:var(--accent)}
.notice{margin-top:20px;border-left:2px solid var(--warm);padding:2px 0 2px 16px;
  color:var(--muted);font-size:14.5px}

.prose{margin-top:38px;max-width:68ch}
.prose h2{font-family:var(--f-brand);font-size:22px;margin:38px 0 14px}
.prose h3{font-size:17px;margin:28px 0 10px}
.prose p{color:#cfcfcf;margin:0 0 1.15em}
.prose strong{color:var(--fg);font-weight:600}
.prose em{color:var(--fg)}
.prose ul,.prose ol{color:#cfcfcf;padding-left:22px;margin:0 0 1.15em}
.prose li{margin-bottom:7px}
.prose a{color:var(--accent-hi);border-bottom:1px solid rgba(46,204,148,.4)}
.prose a:hover{border-bottom-color:var(--accent-hi)}
.prose blockquote{margin:0 0 1.2em;border-left:2px solid var(--line-3);
  padding-left:18px;color:var(--muted)}
.prose table{width:100%;border-collapse:collapse;margin:0 0 1.3em;font-size:14.5px;
  display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:9px 12px 9px 0;
  text-align:left;vertical-align:top}
.prose th{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--dim);font-weight:500}

.source{margin-top:56px;padding-top:34px;border-top:1px solid var(--line)}
.source h2{font-family:var(--f-brand);font-size:22px}
.source .blurb{color:var(--muted);font-size:14.5px;margin:8px 0 22px}
.srcname{font-family:var(--f-mono);font-size:12px;color:var(--accent);
  margin:22px 0 8px;font-weight:500;letter-spacing:0}

/* --------------------------------------------------------------- footer -- */
footer.site{flex-shrink:0;border-top:1px solid var(--line);margin-top:80px;
  padding:26px 0 70px;background:var(--bg-2)}
footer.site .ends{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--f-mono);font-size:12px;color:var(--dim)}
footer.site a{color:var(--accent-hi)}
footer.site a:hover{color:var(--fg)}
.empty{color:var(--dim);font-size:14.5px;font-family:var(--f-mono)}

/* announced to screen readers, invisible to everyone else */
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---- entry page: tags out, related out ---- */
.entry-tags{margin-top:38px;padding-top:22px;border-top:1px solid var(--line)}
a.tag{transition:.16s}
a.tag:hover{color:var(--accent-hi);border-color:rgba(46,204,148,.35);
  background:var(--accent-dim)}
.related{padding:44px 0 0}
.related h2{font-family:var(--f-brand);font-size:20px;margin-bottom:18px}
.related .grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}