/* Design system: cool neutral surfaces, one accent per domain (--ac), key-cap shaped controls.
   No webfonts and no external files: the system font stack keeps the CSP strict. */
:root{
  --bg:#edf0f4;--pn:#fff;--sink:#f5f7fa;--cd:#e6eaf0;--ln:#d8dee6;--ln2:#c3cbd6;
  --tx:#11151b;--mu:#586373;
  --ok:#14915a;--warn:#c98a0a;--bad:#d03f33;
  --k:#b4440a;--s:#13763a;--n:#1d4ed8;
  --code:#0e1218;--code-tx:#d6dde8;--code-mu:#7c8899;
  --edge:color-mix(in srgb,var(--ac) 58%,#000);
  --sans:"Segoe UI Variable Text","Segoe UI",-apple-system,BlinkMacSystemFont,Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SF Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;
}
@media(prefers-color-scheme:dark){:root{
  --bg:#0c0f13;--pn:#151a21;--sink:#10141a;--cd:#1c222b;--ln:#262d38;--ln2:#364050;
  --tx:#e8ecf2;--mu:#8b96a6;
  --ok:#3ccf8a;--warn:#f0b83a;--bad:#ff7b6d;
  --k:#fb923c;--s:#4ade80;--n:#7aa7ff;
  --code:#0a0d11;--code-mu:#6f7b8c;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);font:15.5px/1.55 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--ac);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}
code,pre,kbd,textarea,.mono{font-family:var(--mono)}
code{font-size:.88em;background:var(--cd);padding:1px 6px;border-radius:5px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px 48px}
.muted{color:var(--mu)}.lead{max-width:62ch;margin:0 0 22px;font-size:16.5px;line-height:1.6}
h1,h2,h3{letter-spacing:-.018em;line-height:1.15}

/* ---------- header ---------- */
.top{display:flex;align-items:center;gap:28px;padding:22px 0 18px}
.top nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.top nav a{color:var(--mu);font-size:14.5px;font-weight:550;padding:6px 11px;border-radius:8px}
.top nav a:hover{color:var(--tx);background:var(--cd);text-decoration:none}
.top nav a[aria-current]{color:var(--tx);box-shadow:inset 0 -2px 0 var(--ac);border-radius:8px 8px 0 0}
.logo{display:flex;align-items:center;gap:11px;font-weight:760;font-size:18px;letter-spacing:-.02em;color:var(--tx)!important}
.logo:hover{text-decoration:none!important}
.logo i{width:30px;height:30px;border-radius:9px;background:var(--ac);border-bottom:3px solid var(--edge);display:grid;place-items:center;color:#fff;font:700 15px/1 var(--sans);font-style:normal;padding-bottom:1px}
.signin{font:inherit;font-size:14px;font-weight:600;color:var(--tx);background:var(--pn);border:1px solid var(--ln2);border-bottom-width:3px;border-radius:9px;padding:5px 14px 4px;margin-left:10px;cursor:pointer}
.signin:hover{border-color:var(--ac)}
.signin:active{transform:translateY(2px);border-bottom-width:1px}

/* ---------- headings ---------- */
h1.h{font-size:clamp(28px,4vw,38px);font-weight:760;margin:8px 0 8px}
.hero{padding:34px 0 8px}
.hero h1{font-size:clamp(36px,5.6vw,64px);line-height:1.02;font-weight:800;letter-spacing:-.04em;margin:0 0 18px;max-width:15ch}
.hero p{margin:0 0 26px;max-width:54ch;font-size:17.5px;line-height:1.55}
.sub{font-size:19px;font-weight:700;margin:34px 0 14px}.sub.nm{margin-top:0}

/* ---------- search + category tabs ---------- */
.search{display:flex;align-items:center;gap:12px;background:var(--pn);border:1px solid var(--ln2);border-bottom-width:3px;border-radius:14px;padding:12px 16px;max-width:560px;color:var(--mu);font-size:18px}
.search:focus-within{border-color:var(--ac);box-shadow:0 0 0 4px color-mix(in srgb,var(--ac) 16%,transparent)}
.search input{flex:1;font:inherit;font-size:16.5px;color:var(--tx);background:none;border:0;outline:0;min-width:0}
kbd{font:600 12px var(--mono);border:1px solid var(--ln2);border-bottom-width:3px;border-radius:6px;padding:0 7px;background:var(--sink);color:var(--mu);line-height:1.55}
.chips{display:flex;gap:2px;margin:30px 0 16px;flex-wrap:wrap;border-bottom:1px solid var(--ln)}
.chip,.chips>a{font:inherit;font-size:14.5px;font-weight:600;padding:8px 14px 9px;margin-bottom:-1px;border:0;border-bottom:3px solid transparent;color:var(--mu);background:none;cursor:pointer;text-decoration:none!important}
.chip:hover,.chips>a:hover{color:var(--tx)}
.chip[aria-pressed=true]{color:var(--tx);border-bottom-color:var(--ac)}

/* ---------- tool tiles (key caps) ---------- */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:26px}
.grid.small{grid-template-columns:repeat(2,minmax(0,1fr))}
.t{display:flex;align-items:flex-start;gap:15px;background:var(--pn);border:1px solid transparent;border-radius:16px;padding:16px 16px 16px 14px;color:var(--tx);text-decoration:none!important;transition:border-color .15s,background .15s}
.t:hover{border-color:var(--ln2)}
.t .ic{flex:none;display:grid;place-items:center;width:52px;height:48px;border-radius:12px;background:linear-gradient(var(--pn),var(--sink));border:1px solid var(--ln2);border-bottom-width:5px;color:var(--ac);font:700 13.5px/1 var(--mono);letter-spacing:-.04em;transition:transform .1s,border-bottom-width .1s}
.t:hover .ic{transform:translateY(3px);border-bottom-width:2px}
.t b{display:block;font-size:16px;font-weight:700;letter-spacing:-.01em;margin-top:1px}
.t small{display:block;color:var(--mu);font-size:13.5px;line-height:1.4;margin-top:3px}
.t[hidden]{display:none}
.none{padding:10px 2px}
.strip{display:grid;grid-template-columns:1fr 1fr;background:var(--pn);border-radius:16px;margin-top:8px}
.card{background:var(--pn);border-radius:16px;margin-bottom:22px;overflow:hidden}
.strip .card{display:flex;gap:13px;align-items:center;padding:16px 20px;margin:0;border-radius:16px;color:var(--tx);text-decoration:none!important;background:none}
.strip .card+.card{border-left:1px solid var(--ln);border-radius:0 16px 16px 0}
.strip .card:hover{background:var(--sink)}
.strip small{display:block}
.dotl{width:11px;height:11px;border-radius:50%;background:var(--ok);flex:none;box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 20%,transparent)}
.dotl.warn{background:var(--warn);box-shadow:0 0 0 4px color-mix(in srgb,var(--warn) 22%,transparent)}
.dotl.bad{background:var(--bad);box-shadow:0 0 0 4px color-mix(in srgb,var(--bad) 22%,transparent)}
.pad{padding:20px 24px}
.crumbs{font-size:13.5px;color:var(--mu);margin:6px 0 4px}

/* ---------- tool workbench ---------- */
.tool{background:var(--pn);border:1px solid var(--ln);border-radius:16px;overflow:hidden;margin-bottom:8px}
.th{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--cd);border-bottom:1px solid var(--ln);flex-wrap:wrap}
.th .sp{flex:1}
.btn{font:inherit;font-size:13.5px;font-weight:600;padding:6px 13px 5px;border-radius:9px;border:1px solid var(--ln2);border-bottom-width:3px;background:var(--pn);color:var(--tx);cursor:pointer}
.btn:hover{border-color:var(--ac)}
.btn:active{transform:translateY(2px);border-bottom-width:1px;padding-bottom:7px}
.btn.p{background:var(--ac);border-color:var(--edge);color:#fff}
.btn.p:hover{filter:brightness(1.06)}
.btn:disabled{opacity:.5;cursor:default}
.io{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.io.one{grid-template-columns:minmax(0,1fr)}
.pane{border-right:1px solid var(--ln);min-width:0;display:flex;flex-direction:column}.pane>textarea,.pane>pre.out{flex:1}.pane:last-child{border-right:0}
.pl{font-size:13px;font-weight:650;color:var(--mu);padding:10px 16px 9px;border-bottom:1px solid var(--ln);display:flex;justify-content:space-between;gap:8px}
.tool textarea,.tool pre.out,.tool input[type=text],.tool input[type=number],.tool select{font:13.5px/1.6 var(--mono);color:var(--tx);background:transparent;border:0;outline:0;width:100%}
.tool textarea{display:block;padding:14px 16px;min-height:280px;resize:vertical;background:var(--sink)}
.tool pre.out{margin:0;padding:14px 16px;min-height:280px;white-space:pre-wrap;word-break:break-word;overflow:auto}
.tool .fld{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:550;color:var(--mu)}
.tool .fld input[type=text],.tool .fld input[type=number],.tool .fld select{width:auto;border:1px solid var(--ln2);border-radius:8px;padding:5px 9px;background:var(--pn)}
.tool .fld input:focus,.tool .fld select:focus,.tool textarea:focus-visible{outline:2px solid var(--ac);outline-offset:-2px}
.th>select,.th>input[type=text],.th>input[type=number]{width:auto;border:1px solid var(--ln2);border-radius:8px;padding:5px 9px;background:var(--pn)}
.tool label.ck{display:inline-flex;gap:7px;align-items:center;font-size:13.5px;font-weight:550;color:var(--mu);cursor:pointer}
.tool input[type=range]{accent-color:var(--ac)}
.tool input[type=checkbox]{accent-color:var(--ac);width:15px;height:15px}
.stat{padding:10px 16px;border-top:1px solid var(--ln);font-size:13px;color:var(--mu);display:flex;gap:6px 18px;flex-wrap:wrap;background:var(--pn)}
.stat span:empty{display:none}
.stat .good{color:var(--ok);font-weight:600}.stat .badc{color:var(--bad);font-weight:600}
.k{color:var(--k)}.s{color:var(--s)}.nn{color:var(--n)}.p2{color:var(--mu)}
.kv{width:100%;border-collapse:collapse;font-size:14px}.kv td,.kv th{padding:9px 16px;border-top:1px solid var(--ln);text-align:left;vertical-align:top}
.kv th{width:200px;color:var(--mu);font-weight:550}.kv td{font-family:var(--mono);font-size:13.5px;word-break:break-all}
/* new tools */
.kv.plain td{font-family:var(--sans);font-size:14.5px;word-break:normal}
.kv.plain th{width:240px;color:var(--tx);font-weight:650}
.swrow{display:grid;grid-template-columns:200px minmax(0,1fr)}
.sw{min-height:150px;border-right:1px solid var(--ln);background:#1a73e8}
.shades{display:flex;gap:0;padding:0}
.shade{flex:1;height:46px;border:0;padding:0;cursor:pointer;border-radius:0}
.shade:hover{outline:2px solid var(--tx);outline-offset:-2px}
.perm{table-layout:fixed}.perm th{width:auto}.perm td,.perm th:not(:first-child){text-align:center}
.perm input[type=checkbox]{width:18px;height:18px}
.perm td .ck{justify-content:center}
.kvline{display:flex;align-items:baseline;gap:14px;margin-bottom:10px}.kvline .muted{width:84px;font-size:13.5px;font-weight:550}
.bigcode{font-size:17px;background:var(--sink);border:1px solid var(--ln);padding:5px 10px;border-radius:8px}
.pad.plain,ul.plain.pad{padding:6px 24px 18px 40px}
mark{background:color-mix(in srgb,var(--warn) 38%,transparent);color:inherit;border-radius:3px;padding:0 1px}
.df{margin:0;padding:12px 0;font:13.5px/1.6 var(--mono);overflow:auto}
.df div{padding:0 16px;white-space:pre-wrap;word-break:break-word}
.df .add{background:color-mix(in srgb,var(--ok) 16%,transparent)}.df .del{background:color-mix(in srgb,var(--bad) 16%,transparent)}
.pw{display:flex;align-items:center;gap:12px;padding:10px 16px;border-top:1px solid var(--ln);font:15px var(--mono);word-break:break-all}
.pw:first-child{border-top:0}
.pw span{flex:1}
.hashrow{display:grid;grid-template-columns:150px 1fr auto;gap:12px;align-items:center;padding:11px 16px;border-top:1px solid var(--ln)}
.hashrow b{font-size:13.5px}.hashrow code{background:none;word-break:break-all;white-space:pre-wrap;font-size:13.5px;padding:0}
.err{color:var(--bad);font-size:13.5px;margin:8px 0 0}
.runs{margin:0;padding:12px 16px 14px 40px;font:13.5px/1.9 var(--mono)}

/* ---------- API reference ---------- */
.ep{padding:20px 24px;background:var(--pn);border-radius:16px;margin-bottom:14px}
.ep h3{margin:0 0 6px;font-size:16px;font-weight:650;word-break:break-all;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ep h3 code{background:none;padding:0;font-size:15px}
.ep p{margin:0 0 12px;color:var(--mu)}
.m{display:inline-block;font:700 11.5px/1 var(--mono);padding:5px 8px;border-radius:6px;color:#fff;background:var(--n)}
.m-post{background:var(--s)}.m-get{background:var(--ac)}
@media(prefers-color-scheme:dark){.m-post{color:#04210f}.m-get,.m{color:#fff}}
.lock{font-size:11.5px;font-weight:600;border:1px solid var(--ln2);border-radius:999px;padding:2px 9px;color:var(--mu)}
.pt{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 14px}.pt th,.pt td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--ln)}.pt th{color:var(--mu);font-weight:600}.pt tr:last-child td{border-bottom:0}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.cols pre{margin:0;background:var(--code);color:var(--code-tx);border-radius:12px;padding:14px 16px;font-size:12.8px;line-height:1.6;overflow:auto;white-space:pre-wrap;word-break:break-all}
.cols .pl{background:none;border:0;padding:0 0 6px;font-size:13px}
ul.plain{margin:0;padding-left:20px}ul.plain li{margin:8px 0}

/* ---------- status ---------- */
.banner{display:flex;align-items:center;gap:18px;background:color-mix(in srgb,var(--ok) 13%,var(--pn));border-radius:18px;padding:22px 26px;margin-bottom:18px}
.banner.warn{background:color-mix(in srgb,var(--warn) 15%,var(--pn))}.banner.bad{background:color-mix(in srgb,var(--bad) 14%,var(--pn))}
.bic{width:46px;height:46px;border-radius:50%;background:var(--ok);display:grid;place-items:center;color:#fff;font-size:24px;font-weight:700;flex:none}
.banner.warn .bic{background:var(--warn)}.banner.bad .bic{background:var(--bad)}
.banner h1{margin:0;font-size:clamp(22px,3.4vw,30px);font-weight:760;color:var(--tx)}.banner p{margin:3px 0 0;font-size:14.5px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr)}
.mt{padding:20px 26px;border-right:1px solid var(--ln)}.mt:last-child{border-right:0}
.mv{font-size:34px;font-weight:760;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.2}.mv u{text-decoration:none;font-size:15px;color:var(--mu);font-weight:500;letter-spacing:0}
.spark{width:100%;height:44px;margin-top:8px}.spark path{fill:none;stroke:var(--ac);stroke-width:2;vector-effect:non-scaling-stroke}.spark .a{fill:var(--ac);opacity:.12;stroke:none}
.ch{margin:0;padding:16px 26px;font-size:16px;font-weight:700;border-bottom:1px solid var(--ln);display:flex;justify-content:space-between;align-items:baseline}
.ch span{font-size:13.5px;font-weight:500;color:var(--mu)}
.row{padding:17px 26px;border-bottom:1px solid var(--ln)}.row:last-child{border-bottom:0}
.rh{display:flex;justify-content:space-between;align-items:center;margin-bottom:11px;gap:12px}.rh small{color:var(--mu);margin-left:10px;font-size:13px}
.st{font-size:13.5px;font-weight:650;display:flex;align-items:center;gap:7px;white-space:nowrap}.st:before{content:"";width:9px;height:9px;border-radius:50%;background:currentColor}
.ok{color:var(--ok)}.warn{color:var(--warn)}.bad{color:var(--bad)}
.bars{display:flex;gap:2px;height:34px}.bars i{flex:1;border-radius:3px;background:var(--ok);opacity:.88}.bars i.w{background:var(--warn);opacity:1}.bars i.b{background:var(--bad);opacity:1}
.bf{display:flex;justify-content:space-between;color:var(--mu);font-size:12.5px;margin-top:8px}
.inc{padding:17px 26px;border-bottom:1px solid var(--ln)}.inc:last-child{border-bottom:0}
.inc h3{margin:0 0 3px;font-size:16px}.inc .d{color:var(--mu);font-size:13px;margin-bottom:8px}.inc p{margin:4px 0;font-size:14.5px}
.tag{font-size:12px;padding:2px 9px;border-radius:999px;background:color-mix(in srgb,var(--ok) 16%,transparent);color:var(--ok);margin-left:8px;font-weight:650;vertical-align:2px}
.tag.w{background:color-mix(in srgb,var(--warn) 20%,transparent);color:var(--warn)}
.rel{margin-bottom:22px}.rel:last-child{margin-bottom:0}.rel h3{margin:0 0 6px;font-size:17px}.rel h3 small{font-size:13.5px;font-weight:500;margin-left:8px}.rel ul{margin:0;padding-left:20px}.rel li{margin:3px 0}
.prose{max-width:74ch}
.prose h3{margin:22px 0 4px;font-size:16px}.prose p{margin:0 0 8px}
.nf{padding:70px 0 40px}.nf h1{font-size:clamp(80px,16vw,160px);margin:0;line-height:.9;font-weight:800;letter-spacing:-.06em;color:var(--ac)}
.nf p{font-size:17px}
.foot{display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;color:var(--mu);font-size:13.5px;padding-top:30px;margin-top:10px;border-top:1px solid var(--ln)}
.foot nav{display:flex;gap:6px 20px;flex-wrap:wrap}
.foot a{color:var(--mu)}.foot a:hover{color:var(--tx)}

/* ---------- login dialog ---------- */
dialog{border:1px solid var(--ln2);border-radius:18px;background:var(--pn);color:var(--tx);padding:26px;width:min(400px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(8,11,15,.55)}
dialog h2{margin:0 0 4px;font-size:21px}
dialog label{display:block;font-size:13.5px;font-weight:600;color:var(--mu);margin:14px 0 0}
dialog input{display:block;width:100%;margin-top:5px;font:inherit;color:var(--tx);background:var(--sink);border:1px solid var(--ln2);border-radius:10px;padding:10px 12px}
dialog input:focus{outline:2px solid var(--ac);outline-offset:-1px}
dialog .row{display:flex;justify-content:flex-end;gap:10px;padding:18px 0 0;border:0}
button:focus-visible,a:focus-visible,.signin:focus-visible{outline:2px solid var(--ac);outline-offset:2px}

@media(max-width:900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.swrow{grid-template-columns:1fr}.sw{border-right:0;border-bottom:1px solid var(--ln);min-height:90px}.kv.plain th{width:auto}.io{grid-template-columns:minmax(0,1fr)}.pane{border-right:0;border-bottom:1px solid var(--ln)}.cols,.metrics,.strip{grid-template-columns:1fr}.mt{border-right:0;border-bottom:1px solid var(--ln)}.mt:last-child{border-bottom:0}.strip .card+.card{border-left:0;border-top:1px solid var(--ln);border-radius:0 0 16px 16px}.top{flex-wrap:wrap;gap:8px 16px}.top nav{margin-left:0;width:100%;overflow-x:auto}.signin{margin-left:auto}}
@media(max-width:560px){.grid,.grid.small{grid-template-columns:1fr}.wrap{padding:0 16px 36px}.hashrow{grid-template-columns:1fr}.banner{padding:18px}.row,.inc,.ch,.mt{padding-left:18px;padding-right:18px}.kv th{width:120px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}