/* Bot Check by KH Labs. Dark ink theme on the shared KH Labs chrome (kh-chrome.css): Mona Sans + JetBrains Mono self-hosted in fonts/. */

:root{
  --bg:#06080C; --surface:#0D1117; --sunk:#141A22; --line:rgba(238,241,245,.10); --line-2:rgba(238,241,245,.18);
  --ink:#EEF1F5; --ink-2:#C2C8D1; --mute:#8D939C;
  --acc:#FF4F1A; --acc-ink:#FF7A4D; --acc-wash:rgba(255,79,26,.12); --acc-on:#0C0604;
  --fail:#FF5C5C; --fail-ink:#FF9C9C; --fail-wash:rgba(255,92,92,.14); --fail-cell:#FF5C5C;
  --pass:#3DDC97; --pass-wash:rgba(61,220,151,.13); --pass-cell:#3DDC97;
  --idle-cell:#1B222C;
  --r-s:4px; --r-m:8px; --r-l:12px;
  --sh-1:none; --sh-2:none;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --mono:"KH Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"KH Mona",ui-sans-serif,system-ui,sans-serif;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-color:#262C39 transparent;scrollbar-width:thin;-webkit-text-size-adjust:100%}
body{margin:0;font-stretch:100%;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--sans);font-feature-settings:"ss01";-webkit-font-smoothing:antialiased;caret-color:var(--acc)}
::selection{background:var(--acc);color:var(--acc-on)}
::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#262C39;border-radius:99px;border:3px solid var(--bg)}::-webkit-scrollbar-track{background:transparent}
a{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:var(--line-2)}
a:hover{color:var(--acc-ink)}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:4px}
button{font:inherit;color:inherit}
svg{flex:none}
h1,h2,h3{text-wrap:balance;margin:0}
p{text-wrap:pretty}
.wrap{width:min(1248px,100% - 2*clamp(20px,4vw,56px));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--acc);color:var(--acc-on);padding:8px 12px;border-radius:var(--r-s);z-index:10}
.skip:focus{left:12px}

/* ---------------------------------------------------------------- second row (page sections), under the shared KH Labs bar */
.subnav{position:sticky;top:64px;z-index:50;background:rgba(6,8,12,.92);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--line)}
.subnav-in{display:flex;align-items:center;gap:24px;height:44px;width:min(1248px,100% - 2*clamp(20px,4vw,56px));margin-inline:auto}
.subnav nav{display:flex;gap:4px}
.subnav a{font:500 12.5px/1 var(--mono);letter-spacing:.02em;color:var(--mute);text-decoration:none;padding:8px 10px;border-radius:var(--r-s);transition:background .2s,color .2s;display:inline-flex;align-items:center;gap:8px}
.subnav a:hover{color:var(--acc-ink);background:var(--sunk)}
.subnav .sn-dl{margin-left:auto;white-space:nowrap;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line-2)}
.subnav .sn-dl:hover{box-shadow:inset 0 0 0 1px var(--acc)}
.subnav .sn-dl svg{width:15px;height:15px}

/* ---------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--r-m);font-weight:560;font-size:15px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .2s var(--ease-out),box-shadow .2s var(--ease-out),transform .2s var(--ease-out),border-color .2s}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--acc);color:var(--acc-on);box-shadow:0 1px 0 rgba(255,255,255,.28) inset}
.btn-primary:hover{background:#FF6A3A;color:var(--acc-on);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--acc);background:var(--sunk);color:var(--ink)}

/* ---------------------------------------------------------------- hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:64px;align-items:center;padding:88px 0 96px}
h1{font-size:clamp(2.4rem,4.4vw,4.1rem);line-height:1.02;letter-spacing:-.038em;font-weight:660;font-stretch:112%}
.lede{font-size:clamp(1.05rem,1.3vw,1.2rem);line-height:1.6;color:var(--ink-2);max-width:56ch;margin:28px 0 0}
.fict{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--mute);margin:18px 0 0;max-width:56ch}
.fict svg{width:18px;height:18px;margin-top:2px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}

.board{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:24px 24px 18px;box-shadow:var(--sh-2)}
.board-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;font-size:14px;font-weight:600;padding-bottom:16px;border-bottom:1px solid var(--line)}
.board-meta{font-weight:450;color:var(--mute);font-size:13px;text-align:right;font-variant-numeric:tabular-nums}
.run{display:grid;grid-template-columns:1fr auto;grid-template-areas:"label num" "cells cells";gap:12px 16px;padding:20px 0 4px}
.run-label{grid-area:label;display:flex;flex-direction:column;line-height:1.3}
.run-label b{font-size:15px;font-weight:650}
.run-label span{font-size:13px;color:var(--mute)}
.run-num{grid-area:num;display:flex;align-items:baseline;gap:2px;font-variant-numeric:tabular-nums}
.count{font-size:44px;font-weight:680;letter-spacing:-.04em;line-height:1}
[data-run="raw"] .count{color:var(--fail)}
[data-run="guarded"] .count{color:var(--pass)}
.of{font-size:14px;color:var(--mute);font-weight:500}
.cells{grid-area:cells;display:grid;grid-template-columns:var(--groups,repeat(8,1fr));gap:6px}
.grp{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:3px}
.cell{appearance:none;border:0;padding:0;height:34px;border-radius:4px;background:var(--idle-cell);cursor:pointer;transition:background-color .5s var(--ease-out),transform .25s var(--ease-out),box-shadow .25s var(--ease-out);transition-delay:var(--d,0ms),0ms,0ms}
.cell.fail{background:var(--fail-cell)}
.cell.pass{background:var(--pass-cell)}
.cell:hover{transform:translateY(-2px)}
.cell.sel{box-shadow:0 0 0 2px var(--surface),0 0 0 4px var(--ink)}
.cat-axis{display:grid;grid-template-columns:var(--groups,repeat(8,1fr));gap:6px;margin-top:10px}
.cat-axis span{font-size:11px;color:var(--mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}
.board-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:18px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--mute)}
.key{display:inline-flex;align-items:center;gap:6px}
.k{width:10px;height:10px;border-radius:3px;display:inline-block}.k.fail{background:var(--fail-cell)}.k.pass{background:var(--pass-cell)}
.board-hint{margin-left:auto}

/* ---------------------------------------------------------------- sections */
section{scroll-margin-top:128px}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:end;margin-bottom:36px}
.sec-head h2{font-size:clamp(1.75rem,2.6vw,2.4rem);line-height:1.1;letter-spacing:-.03em;font-weight:640;font-stretch:108%}
.sec-head p{margin:0;color:var(--ink-2);max-width:60ch}
.attacks,.explorer,.method,.offer{padding:96px 0 0}

/* attack grid: one ruled table, not a card wall */
.cat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r-l);background:var(--surface);overflow:hidden}
.cat{appearance:none;text-align:left;background:transparent;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 22px 20px;cursor:pointer;display:flex;flex-direction:column;gap:10px;min-height:212px;transition:background .25s var(--ease-out)}
.cat:nth-child(4n){border-right:0}
.cat:nth-last-child(-n+4){border-bottom:0}
.cat:hover{background:rgba(238,241,245,.035)}
.cat:focus-visible{outline-offset:-3px}
.cat h3{font-size:16.5px;font-weight:640;letter-spacing:-.012em}
.cat p{margin:0;font-size:14px;line-height:1.5;color:var(--ink-2)}
.cat-stats{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--mute);font-variant-numeric:tabular-nums}
.mini{display:flex;flex-direction:column;gap:3px}
.mini span{display:flex;gap:3px}
.mini i{width:12px;height:8px;border-radius:2px;background:var(--idle-cell)}
.mini i.fail{background:var(--fail-cell)}.mini i.pass{background:var(--pass-cell)}
.delta{margin-left:auto;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:6px}
.delta svg{width:14px;height:14px;color:var(--mute)}
.delta .b{color:var(--fail)}.delta .a{color:var(--pass)}
.delta .a.bad{color:var(--fail)}

/* ---------------------------------------------------------------- explorer */
.ex-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:16px}
.seg{display:inline-flex;background:var(--sunk);border-radius:var(--r-m);padding:3px;gap:2px}
.seg button{appearance:none;border:0;background:transparent;border-radius:8px;padding:7px 12px;font-size:14px;font-weight:540;color:var(--ink-2);cursor:pointer;transition:background .2s,color .2s,box-shadow .2s;font-variant-numeric:tabular-nums}
.seg button span{color:var(--mute);font-weight:500;margin-left:2px}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--sh-1)}
.seg button:hover:not([aria-pressed="true"]){color:var(--ink)}
.cat-filter{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 6px 0 12px;border:1px solid var(--line-2);border-radius:99px;font-size:14px;font-weight:540;background:var(--surface)}
.cat-filter[hidden]{display:none}
.clear{appearance:none;border:0;background:transparent;width:24px;height:24px;display:grid;place-items:center;border-radius:99px;cursor:pointer;color:var(--mute)}
.clear:hover{background:var(--sunk);color:var(--ink)}
.clear svg{width:16px;height:16px}

.ex-body{display:grid;grid-template-columns:320px minmax(0,1fr);border:1px solid var(--line);border-radius:var(--r-l);background:var(--surface);overflow:hidden;min-height:640px}
.case-list{list-style:none;margin:0;padding:8px;border-right:1px solid var(--line);max-height:860px;overflow:auto;background:var(--bg)}
.case-list li+li{margin-top:2px}
.ci{appearance:none;width:100%;border:0;background:transparent;text-align:left;display:grid;grid-template-columns:auto 1fr auto;gap:2px 10px;align-items:center;padding:9px 10px;border-radius:8px;cursor:pointer;transition:background .15s}
.ci:hover{background:var(--sunk)}
.ci[aria-current="true"]{background:var(--acc-wash)}
.ci .id{font:500 12px/1 var(--mono);color:var(--mute);grid-row:1}
.ci .t{font-size:14px;line-height:1.35;color:var(--ink);grid-column:1/3;grid-row:2}
.ci .dots{grid-column:3;grid-row:1/3;display:flex;gap:4px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--idle-cell)}
.dot.fail{background:var(--fail-cell)}.dot.pass{background:var(--pass-cell)}
.case-list .empty{padding:16px;color:var(--mute);font-size:14px}

.case-view{padding:28px 32px 32px;min-width:0}
.cv-head{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin-bottom:6px}
.cv-head .id{font:500 13px/1 var(--mono);color:var(--mute)}
.tag{font-size:12px;font-weight:560;color:var(--ink-2);border:1px solid var(--line-2);border-radius:6px;padding:2px 7px;line-height:1.4}
.cv-title{font-size:22px;letter-spacing:-.02em;font-weight:650;margin:0 0 18px}
.bubble{border-radius:12px;padding:14px 16px;font-size:15px;line-height:1.6;overflow-wrap:anywhere}
.bubble .who{display:block;font-size:12px;font-weight:620;color:var(--mute);margin-bottom:4px}
.bubble.user{background:var(--sunk);max-width:72ch}
.versions{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.ver{border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;min-width:0;background:var(--surface);transition:border-color .3s}
.ver.is-fail{border-color:rgba(255,92,92,.4)}
.ver-h{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line)}
.ver-h b{font-size:14px;font-weight:640}
.ver-h small{display:block;font-size:12px;color:var(--mute);font-weight:450}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:640;padding:3px 9px 3px 7px;border-radius:99px}
.pill svg{width:14px;height:14px}
.pill.fail{background:var(--fail-wash);color:var(--fail-ink)}
.pill.pass{background:var(--pass-wash);color:var(--pass)}
.reply{padding:14px 16px;font-size:14.5px;line-height:1.62;overflow-wrap:anywhere;flex:1}
.reply .li{display:block;position:relative;padding-left:14px}
.reply .li::before{content:"";position:absolute;left:3px;top:.72em;width:4px;height:4px;border-radius:50%;background:var(--mute)}
.reply.clip{max-height:340px;overflow:hidden;-webkit-mask-image:linear-gradient(#000 78%,transparent);mask-image:linear-gradient(#000 78%,transparent)}
.more{appearance:none;border:0;background:transparent;color:var(--acc-ink);font-size:13.5px;font-weight:560;padding:0 16px 12px;text-align:left;cursor:pointer}
.more:hover{text-decoration:underline;text-underline-offset:3px}
mark{background:rgba(255,92,92,.22);color:#FFD6D6;border-radius:3px;padding:1px 2px;box-decoration-break:clone;-webkit-box-decoration-break:clone;box-shadow:0 0 0 1px rgba(255,92,92,.45)}
.grades{border-top:1px solid var(--line);padding:12px 16px 14px;font-size:13.5px;display:flex;flex-direction:column;gap:10px;background:var(--bg);border-radius:0 0 12px 12px}
.g-h{font-size:12px;font-weight:620;color:var(--mute);margin:0 0 4px}
.g-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px}
.g-list li{display:flex;gap:7px;align-items:flex-start;line-height:1.45;color:var(--ink-2)}
.g-list svg{width:15px;height:15px;margin-top:2px}
.g-list .ok svg{color:var(--pass)}.g-list .bad svg{color:var(--fail)}
.g-list code{font:500 12px/1.4 var(--mono);background:var(--fail-wash);color:var(--fail-ink);padding:0 4px;border-radius:4px;overflow-wrap:anywhere}
.g-list .na{color:var(--mute)}
.judge p{margin:0;color:var(--ink-2);line-height:1.5}
.trace{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px}
.trace li{font:500 11.5px/1.3 var(--mono);color:var(--ink-2);background:var(--sunk);border-radius:5px;padding:3px 6px}
.trace li b{font-weight:600;color:var(--acc-ink)}
.vtabs{display:none}

/* ---------------------------------------------------------------- method */
.method-grid{display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:0;position:relative;padding-top:1px}
.method-grid::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:var(--ink)}
.m-col{padding:24px 28px 8px 0}
.m-col+.m-col{padding-left:28px;box-shadow:inset 1px 0 0 var(--line)}
.m-col h3{font-size:17px;font-weight:640;letter-spacing:-.012em;margin-bottom:14px}
.ticks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.ticks li{position:relative;padding-left:24px;font-size:15px;line-height:1.5;color:var(--ink-2)}
.ticks li::before{content:"";position:absolute;left:2px;top:.42em;width:12px;height:7px;border-left:1.6px solid var(--acc);border-bottom:1.6px solid var(--acc);transform:rotate(-45deg)}
.pipeline{list-style:none;margin:0;padding:0;counter-reset:p}
.pipeline li{position:relative;padding:0 0 16px 30px;display:flex;flex-direction:column}
.pipeline li::before{counter-increment:p;content:counter(p);position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;border:1.5px solid var(--acc);color:var(--acc-ink);font:600 11px/17px var(--mono);text-align:center;background:var(--bg)}
.pipeline li:not(:last-child)::after{content:"";position:absolute;left:10px;top:24px;bottom:2px;width:1.5px;background:var(--line-2)}
.pipeline b{font-size:15px;font-weight:620}
.pipeline span{font-size:14.5px;color:var(--ink-2);line-height:1.5}
.caveat{margin:28px 0 0;font-size:14px;color:var(--mute);max-width:90ch}

/* ---------------------------------------------------------------- offer */
.offer-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:30px 30px 28px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--sh-1)}
.plan h3{font-size:21px;letter-spacing:-.02em;font-weight:650}
.price{margin:0;font-size:16px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.price b{font-size:30px;font-weight:680;letter-spacing:-.03em;color:var(--ink)}
.price span{color:var(--line-2);margin:0 6px}
.plan .btn{align-self:flex-start;margin-top:8px}
.plan .link{font-size:14px}

/* ---------------------------------------------------------------- footer */
.foot{margin-top:112px;padding:28px 0 48px;border-top:1px solid var(--line);font-size:14px;color:var(--mute);display:grid;grid-template-columns:1.2fr 1fr;gap:32px}
.foot p{margin:0;max-width:70ch}
.foot b{color:var(--ink);font-weight:620}
.runs{font-variant-numeric:tabular-nums}
.runs code{font:500 12px/1.4 var(--mono);color:var(--ink-2)}

.board-meta,.cat-axis span,.cat-stats,.tag,.ver-h small,.bubble .who,.g-h,.run-label span,.of,.runs,.price span{font-family:var(--mono);letter-spacing:0}
.cat-axis span{font-size:10.5px}
.foot{border-top:0;margin-top:96px;padding-bottom:36px}

/* ---------------------------------------------------------------- responsive */
@media (max-width:1100px){
  .hero{grid-template-columns:1fr;gap:48px;padding:56px 0 64px}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat:nth-child(4n){border-right:1px solid var(--line)}
  .cat:nth-child(2n){border-right:0}
  .cat:nth-last-child(-n+4){border-bottom:1px solid var(--line)}
  .cat:nth-last-child(-n+2){border-bottom:0}
  .method-grid{grid-template-columns:1fr 1fr}
  .m-col.pipe{grid-column:1/-1;box-shadow:inset 0 1px 0 var(--line);padding-left:0}
}
@media (max-width:860px){
  .wrap{width:min(1248px,100% - 2*clamp(20px,4vw,56px))}
  .sec-head{grid-template-columns:1fr;gap:12px}
  .attacks,.explorer,.method,.offer{padding-top:72px}
  .ex-body{grid-template-columns:1fr;min-height:0}
  .case-list{display:flex;gap:6px;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);max-height:none;padding:10px;scroll-snap-type:x mandatory}
  .case-list li+li{margin-top:0}
  .case-list li{flex:0 0 auto;scroll-snap-align:start}
  .ci{width:auto;min-width:168px;max-width:220px;background:var(--surface);border:1px solid var(--line)}
  .ci[aria-current="true"]{border-color:rgba(255,79,26,.5)}
  .case-view{padding:20px 16px 20px}
  .versions{grid-template-columns:1fr}
  .vtabs{display:flex;margin-top:16px}
  .vtabs .seg{width:100%}.vtabs .seg button{flex:1}
  .versions[data-show="raw"] .ver[data-v="guarded"],.versions[data-show="guarded"] .ver[data-v="raw"]{display:none}
  .offer-grid,.foot{grid-template-columns:1fr}
}
@media (max-width:560px){
  .board{padding:18px 16px 14px;border-radius:14px}
  .cells{grid-template-columns:repeat(4,1fr);row-gap:8px}
  .cat-axis{display:none}
  .cell{height:28px}
  .count{font-size:38px}
  .board-hint{margin-left:0;width:100%}
  .cat-grid{grid-template-columns:1fr}
  .cat,.cat:nth-child(4n),.cat:nth-child(2n){border-right:0;border-bottom:1px solid var(--line);min-height:0}
  .cat:last-child{border-bottom:0}
  .method-grid{grid-template-columns:1fr}
  .m-col+.m-col{padding-left:0;box-shadow:inset 0 1px 0 var(--line)}
  .hero-cta .btn{width:100%;justify-content:center}
  .subnav .sn-m{display:none}
  .subnav-in{gap:4px}
  .subnav nav{gap:0}
  .subnav a{padding:8px 6px;font-size:11.5px;letter-spacing:0}
  .subnav .sn-dl svg,.subnav .sn-x{display:none}
  .plan{padding:24px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;transition-delay:0ms!important;animation:none!important;scroll-behavior:auto!important}
}