/* Thread Agencies — design tokens */
@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,700;12..96,800&family=Source+Sans+3:ital,wght@0,400;0,600;0,700;1,400&display=swap");

:root{
  --bg:#f3f6f6; --surface:#ffffff; --surface-2:#eef3f3; --ink:#10232a; --muted:#56676e; --rule:#dbe4e5;
  --brand:#0c3a40; --brand-2:#13606a; --mint:#7fd1c4; --link:#0b6475; --amber:#b8650a; --amber-bg:#fff4e3;
  --crit:#c93636;
  /* validated categorical slots (light) */
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --s4:#eda100; --s5:#e87ba4; --s6:#008300;
  /* ordinal tiers */
  --t-a:#0c4f57; --t-b:#2c8a8f; --t-c:#7fb9bb; --t-n:#b7c2c4; --t-d:#c93636;
  --radius:14px; --shadow:0 1px 2px rgba(16,35,42,.06),0 6px 24px -12px rgba(16,35,42,.18);
  --sans:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Bricolage Grotesque","Source Sans 3",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c1518; --surface:#132026; --surface-2:#182a31; --ink:#e3ecee; --muted:#9fb2b8; --rule:#24373e;
  --brand:#0a2a2f; --brand-2:#4fb8a8; --mint:#7fd1c4; --link:#7ccbe0; --amber:#f0b45a; --amber-bg:#2a2112; --crit:#e66767;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300;
  --t-a:#5fc7b6; --t-b:#3f9a96; --t-c:#2e6a6c; --t-n:#4a5b60; --t-d:#e66767; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0c1518; --surface:#132026; --surface-2:#182a31; --ink:#e3ecee; --muted:#9fb2b8; --rule:#24373e;
  --brand:#0a2a2f; --brand-2:#4fb8a8; --mint:#7fd1c4; --link:#7ccbe0; --amber:#f0b45a; --amber-bg:#2a2112; --crit:#e66767;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300;
  --t-a:#5fc7b6; --t-b:#3f9a96; --t-c:#2e6a6c; --t-n:#4a5b60; --t-d:#e66767; color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:16px}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.6 var(--sans)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
a{color:var(--link);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;z-index:10}
.skip:focus{left:8px}
img{max-width:100%}

/* ---------- header & page head ---------- */
.site-header{background:var(--brand);color:#fff}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 28px;padding-top:14px;padding-bottom:14px}
.brand{display:inline-flex;align-items:center;gap:10px;font:800 21px/1 var(--display);color:inherit;text-decoration:none;letter-spacing:-.02em}
.brand img{border-radius:8px}
.main-nav{display:flex;flex-wrap:wrap;gap:4px 22px;font-size:16px}
.main-nav a{color:#cfe6e3;text-decoration:none;padding:4px 0;border-bottom:2px solid transparent}
.main-nav a:hover{color:#fff;border-bottom-color:var(--mint)}

.page-head{background:linear-gradient(180deg,var(--brand) 0,#0f4750 100%);color:#fff;padding:26px 0 34px}
.page-head .crumbs{font-size:14px;color:#a9cfca;margin-bottom:12px}
.page-head .crumbs a{color:#a9cfca}
.page-head h1{font:800 clamp(32px,5vw,52px)/1.05 var(--display);letter-spacing:-.03em;margin:0 0 14px;max-width:22ch;text-wrap:balance}
.page-head .updated{margin:0;font-size:15px;color:#b9d8d4}
.page-head .updated a{color:#dff3f0}

body.home .page-head{padding:56px 0 64px;background:
  url("/img/hero.svg") right max(20px,calc((100vw - 1180px)/2 + 20px)) center/min(44vw,500px) no-repeat,
  radial-gradient(1200px 500px at 85% 40%,#17616b 0,transparent 60%),var(--brand)}
body.home .page-head h1{font-size:clamp(36px,5.6vw,62px);max-width:14ch}
body.home .page-head .wrap{min-height:300px;display:flex;flex-direction:column;justify-content:center}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;padding-top:36px;padding-bottom:72px}
.side{position:relative}
.toc{position:sticky;top:20px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:16px 18px;font-size:15px}
.toc p{margin:0 0 8px;font:700 15px var(--display)}
.toc ol{margin:0;padding-left:20px}
.toc li{margin:5px 0}
.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:var(--link);text-decoration:underline}
body.home .layout,body.about .layout,body.changelog .layout{grid-template-columns:minmax(0,1fr)}
body.home .side,body.about .side,body.changelog .side{display:none}

/* ---------- prose ---------- */
.prose{min-width:0}
.prose>p,.prose>ul,.prose>ol,.prose>h2,.prose>h3,.prose>blockquote{max-width:72ch}
.prose h2,.prose h3,.prose h4{font-family:var(--display);letter-spacing:-.02em;line-height:1.15}
.prose h2{font-size:clamp(26px,3.4vw,34px);font-weight:800;margin:2.1em 0 .6em}
.prose h3{font-size:21px;font-weight:700;margin:1.7em 0 .4em}
.prose>:first-child{margin-top:0}
ul,ol{padding-left:22px}li{margin:.35em 0}
blockquote{margin:1.4em 0;padding:14px 20px;background:var(--surface);border-left:4px solid var(--brand-2);border-radius:0 var(--radius) var(--radius) 0}
blockquote p{margin:.3em 0}
code{font-size:.9em;background:var(--surface-2);padding:1px 5px;border-radius:4px}
hr{border:0;border-top:1px solid var(--rule);margin:2.4em 0}
.lede{font-size:20px;line-height:1.55;background:var(--surface);border:1px solid var(--rule);border-left:5px solid var(--brand-2);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow)}
.panel{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:6px 26px 14px;box-shadow:var(--shadow);margin:1.6em 0}
.panel h2{margin-top:.8em!important;font-size:24px!important}
.callout.warn,li.warn{display:flex;gap:10px;align-items:flex-start;background:var(--amber-bg);border-radius:10px;padding:10px 14px;list-style:none;margin-left:-22px}
p.callout.warn{margin-left:0}
.warn .ico{color:var(--amber);flex:0 0 22px;margin-top:2px}

/* tables */
.table-wrap{overflow-x:auto;margin:1.4em 0 1.8em;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.45;font-variant-numeric:tabular-nums}
th,td{padding:11px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--rule)}
th{background:var(--surface-2);font-weight:700;font-size:14px;white-space:nowrap;color:var(--ink)}
tbody tr:hover td{background:color-mix(in srgb,var(--surface-2) 60%,transparent)}
tr:last-child td{border-bottom:0}
td a{word-break:break-word}

/* icons */
.ico{width:18px;height:18px;flex:0 0 18px;vertical-align:-3px}
.ico-lg{width:30px;height:30px;flex:0 0 30px}

/* ---------- chips, rings ---------- */
.chip{display:inline-block;font-size:13px;font-weight:600;line-height:1.3;padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--ink);margin:4px 6px 0 0}
.chip.tier-a{background:var(--t-a);color:#fff}.chip.tier-b{background:var(--t-b);color:#fff}
.chip.tier-c{background:var(--t-c);color:#0c2a2e}.chip.tier-n{background:var(--t-n);color:#1b2a2e}.chip.tier-d{background:var(--t-d);color:#fff}
.ring{--size:76px;width:var(--size);height:var(--size);border-radius:50%;flex:0 0 var(--size);display:grid;place-items:center;
  background:conic-gradient(var(--brand-2) calc(var(--p)*1%),var(--surface-2) 0)}
.ring span{width:calc(var(--size) - 14px);height:calc(var(--size) - 14px);border-radius:50%;background:var(--surface);display:grid;place-items:center;
  font:800 calc(var(--size)*.34)/1 var(--display);letter-spacing:-.03em;color:var(--ink)}
.ring-sm{--size:58px}

/* ---------- entry cards ---------- */
.entry{background:var(--surface);border:1px solid var(--rule);border-radius:18px;box-shadow:var(--shadow);margin:28px 0;display:grid;grid-template-columns:minmax(0,1fr) 280px;grid-template-areas:"head head" "body score";overflow:hidden}
.entry-head{grid-area:head;display:flex;align-items:center;gap:16px;padding:20px 24px;border-bottom:1px solid var(--rule);background:linear-gradient(90deg,var(--surface-2),var(--surface))}
.entry-rank{font:800 22px/1 var(--display);width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center}
.entry-title{flex:1;min-width:0}
.entry-title h3{margin:0;font-size:24px}
.entry-bf{margin:4px 0 0;color:var(--muted);font-size:16px}
.entry-body{grid-area:body;padding:16px 24px 18px;min-width:0}
.entry-body ul{padding-left:20px}
.entry-body>ul>li{margin:.55em 0}
.entry-score{grid-area:score;padding:18px 20px;border-left:1px solid var(--rule);background:var(--surface-2)}
.crit{list-style:none;margin:0 0 10px;padding:0;font-size:14px}
.crit li{display:grid;grid-template-columns:1fr auto;grid-template-areas:"l v" "t t";gap:3px 8px;margin:0 0 10px}
.crit-l{grid-area:l;display:flex;gap:6px;align-items:center;color:var(--muted)}
.crit-l .ico{width:16px;height:16px;flex-basis:16px}
.crit-v{grid-area:v;font-weight:700;font-variant-numeric:tabular-nums}.crit-v small{color:var(--muted);font-weight:400}
.crit-t{grid-area:t;height:8px;border-radius:4px;background:color-mix(in srgb,var(--rule) 70%,transparent);overflow:hidden}
.crit-f{display:block;height:100%;border-radius:4px}

/* series colors */
.s1{background:var(--s1)}.s2{background:var(--s2)}.s3{background:var(--s3)}.s4{background:var(--s4)}.s5{background:var(--s5)}.s6{background:var(--s6)}

/* ---------- home blocks ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 2.4em}
.stat{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow)}
.stat b{display:block;font:800 44px/1 var(--display);letter-spacing:-.03em;color:var(--brand-2)}
.stat span{display:block;margin-top:8px;font-size:15px;line-height:1.35;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:1.2em 0 2em}
.card{display:block;background:var(--surface);border:1px solid var(--rule);border-radius:18px;padding:18px 20px 20px;box-shadow:var(--shadow);color:var(--ink);text-decoration:none;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(16,35,42,.06),0 16px 32px -14px rgba(16,35,42,.3)}
.card-top{display:flex;justify-content:space-between;align-items:center}
.rank{font:800 30px/1 var(--display);color:var(--brand-2)}
.card h3{margin:14px 0 4px;font:800 22px/1.15 var(--display)}
.card p{margin:0 0 8px;color:var(--muted);font-size:15px}
.criteria{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:1.2em 0 2em}
.criterion{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:18px 18px 18px 22px;position:relative;overflow:hidden}
.criterion::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px}
.criterion.s1::before{background:var(--s1)}.criterion.s2::before{background:var(--s2)}.criterion.s3::before{background:var(--s3)}
.criterion.s4::before{background:var(--s4)}.criterion.s5::before{background:var(--s5)}.criterion.s6::before{background:var(--s6)}
.criterion.s1,.criterion.s2,.criterion.s3,.criterion.s4,.criterion.s5,.criterion.s6{background:var(--surface)}
.criterion .ico{color:var(--brand-2)}
.criterion b{display:block;font:700 18px/1.2 var(--display);margin-top:10px}
.criterion em{font-style:normal;font-size:13px;font-weight:700;color:var(--muted)}
.criterion p{margin:6px 0 0;font-size:15px;line-height:1.45;color:var(--muted)}

/* ---------- charts ---------- */
.viz{margin:1.8em 0 2.2em;background:var(--surface);border:1px solid var(--rule);border-radius:18px;padding:20px 22px 14px;box-shadow:var(--shadow)}
.viz-title{font:700 19px/1.25 var(--display);margin:0 0 14px;letter-spacing:-.01em}
.viz-note{font-size:14px;color:var(--muted);margin:12px 0 4px}
.as-table summary{cursor:pointer;font-size:14px;color:var(--link);margin:6px 0}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13.5px;color:var(--muted);margin:0 0 14px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.stack-row{display:grid;grid-template-columns:200px minmax(0,1fr) 40px;align-items:center;gap:12px;margin:9px 0;font-size:15px}
.stack-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stack-bar{display:flex;gap:2px;height:16px}
.seg{display:block;height:100%}
.seg:first-child{border-radius:4px 0 0 4px}.seg:last-child{border-radius:0 4px 4px 0}
.stack-total{text-align:right;font-variant-numeric:tabular-nums}
.stack-row:hover .stack-name{font-weight:700}
.svg-wrap{overflow-x:auto}
.svg-wrap svg{min-width:560px;width:100%;height:auto;display:block}
.svg-wrap .grid{stroke:var(--rule);stroke-width:1}
.svg-wrap .tick{fill:var(--muted);font:12px var(--sans)}
.svg-wrap .axis{fill:var(--muted);font:600 12.5px var(--sans)}
.svg-wrap .dot{fill:var(--s1);stroke:var(--surface);stroke-width:2}
.svg-wrap .band{fill:var(--surface-2)}
.svg-wrap .dot:hover{r:8}
.svg-wrap .dl{fill:var(--ink);font:600 12.5px var(--sans)}
.ladder{font-size:15px}
.ladder-axis{position:relative;height:20px;margin-left:220px;margin-right:110px;color:var(--muted);font-size:12.5px;border-bottom:1px solid var(--rule)}
.ladder-axis span{position:absolute;transform:translateX(-50%);top:0}
.ladder-group{font-weight:700;font-size:14px;color:var(--muted);margin:14px 0 4px}
.ladder-row{display:grid;grid-template-columns:208px minmax(0,1fr) 98px;gap:12px;align-items:center;margin:6px 0}
.ladder-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ladder-name a{color:var(--ink);text-decoration:none}.ladder-name a:hover{text-decoration:underline}
.ladder-track{position:relative;height:14px;background:repeating-linear-gradient(90deg,var(--rule) 0 1px,transparent 1px calc(100%/3))}
.rng{position:absolute;top:2px;height:10px;border-radius:5px;background:var(--s1);min-width:10px}
.pt{position:absolute;top:1px;width:12px;height:12px;border-radius:50%;background:var(--s1);transform:translateX(-50%);box-shadow:0 0 0 2px var(--surface)}
.ladder-val{font-variant-numeric:tabular-nums;font-weight:600;font-size:14px}
.hbar-row{display:grid;grid-template-columns:260px minmax(0,1fr) 36px;gap:12px;align-items:center;margin:9px 0;font-size:15px}
.hbar-track{height:18px}
.hbar-f{display:block;height:100%;border-radius:0 5px 5px 0;background:var(--brand-2)}
.hbar-f.t-a{background:var(--t-a)}.hbar-f.t-b{background:var(--t-b)}.hbar-f.t-c{background:var(--t-c)}.hbar-f.t-n{background:var(--t-n)}.hbar-f.t-d{background:var(--t-d)}
.hbar-f.t-m2m,.hbar-f.t-short,.hbar-f.t-long,.hbar-f.t-none{background:var(--s1)}
.hbar-v{text-align:right;font-variant-numeric:tabular-nums}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#b9d8d4;font-size:15px}
.site-footer .wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:20px 40px;padding-top:36px;padding-bottom:30px}
.foot-brand .brand{color:#fff}
.foot-brand p{max-width:46ch;margin:12px 0 0}
.site-footer nav{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.site-footer a{color:#dff3f0}
.copy{grid-column:1/-1;margin:8px 0 0;font-size:13px;color:#8fb7b2;border-top:1px solid rgba(255,255,255,.12);padding-top:16px}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .layout{grid-template-columns:minmax(0,1fr);gap:0}
  .side{order:-1}.toc{position:static;margin-bottom:24px}
  .entry{grid-template-columns:minmax(0,1fr);grid-template-areas:"head" "score" "body"}
  .entry-score{border-left:0;border-bottom:1px solid var(--rule)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cards,.criteria{grid-template-columns:1fr 1fr}
  body.home .page-head{background:radial-gradient(900px 400px at 85% 30%,#17616b 0,transparent 60%),var(--brand)}
}
@media (max-width:640px){
  body{font-size:17px}
  .wrap{padding:0 16px}
  .cards,.criteria{grid-template-columns:1fr}
  .stat b{font-size:36px}
  .entry-head{padding:16px}.entry-body{padding:12px 16px 14px}.entry-score{padding:14px 16px}
  .entry-title h3{font-size:20px}
  .ring{--size:62px}
  .stack-row{grid-template-columns:minmax(0,1fr) 36px;grid-template-areas:"n n" "b t"}
  .stack-name{grid-area:n}.stack-bar{grid-area:b}.stack-total{grid-area:t}
  .ladder-axis{margin-left:0;margin-right:0}
  .ladder-row{grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"n v" "t t";gap:2px 10px}
  .ladder-name{grid-area:n}.ladder-val{grid-area:v}.ladder-track{grid-area:t}
  .hbar-row{grid-template-columns:minmax(0,1fr) 32px;grid-template-areas:"n n" "t v";gap:2px 10px}
  .hbar-name{grid-area:n}.hbar-track{grid-area:t}.hbar-v{grid-area:v}
  table{min-width:620px}
  .site-footer .wrap{grid-template-columns:1fr}
  body.home .page-head{padding:34px 0 40px}
  body.home .page-head .wrap{min-height:0}
  li.warn{margin-left:-20px}
}
@media (prefers-reduced-motion:reduce){.card{transition:none}.card:hover{transform:none}}
@media print{.site-header,.site-footer,.side{display:none}.page-head{background:none;color:var(--ink)}}