:root{color-scheme:dark;--bg:#101618;--panel:#182123;--line:#354143;--ink:#ecf3ec;--muted:#b0bfbb;--green:#96e8b9;--coral:#efad8b;font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--green)}button,select,input{font:inherit}button,select{cursor:pointer}button,a,select,input,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:4px}button{color:var(--ink)}[hidden]{display:none!important}header,main,footer{max-width:1280px;margin:auto;padding:0 40px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:26px;padding-bottom:26px;border-bottom:1px solid var(--line)}nav{display:flex;gap:24px}.wordmark{font-weight:740;font-size:24px;letter-spacing:-1px;display:flex;align-items:center;gap:10px;text-decoration:none}.wordmark span{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0}nav a{font-size:14px;text-decoration:none}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:70px;align-items:center;padding:76px 0 65px}.eyebrow{font:11px/1.6 ui-monospace,monospace;letter-spacing:1.6px;color:var(--green)}.dot{display:inline-block;width:7px;height:7px;background:var(--green);border-radius:100%;margin-right:8px}h1{font-size:clamp(64px,7vw,105px);font-weight:650;line-height:.98;letter-spacing:-7px;margin:26px 0}h1 em{color:var(--green);font-style:normal}.intro{font-size:20px;line-height:1.5;margin-top:30px}.muted,.caption{color:var(--muted)}.hero .muted{max-width:480px}.primary{background:var(--green);color:var(--bg);text-decoration:none;display:inline-flex;gap:32px;padding:13px 20px;border-radius:5px;margin-top:14px;font-weight:650}.primary:hover{background:var(--ink);color:var(--bg)}.hero-proof{display:block;text-decoration:none;background:linear-gradient(155deg,#213034,#172023 70%);border:1px solid #4a615b;border-radius:14px;padding:28px;box-shadow:0 30px 75px #0003;transform:rotate(1deg)}.hero-proof:hover{color:inherit;border-color:var(--green)}.proof-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font:10px ui-monospace,monospace;color:var(--muted)}.badge{font:10px/1.5 ui-monospace,monospace;letter-spacing:.6px;display:inline-block;padding:4px 9px;border:1px solid currentColor;border-radius:3px;white-space:nowrap}.fail,.coral{color:var(--coral)}.pass{color:var(--green)}.hero-score{font-size:clamp(70px,7.2vw,106px);letter-spacing:-7px;font-weight:650;line-height:1.2;margin-top:23px}.hero-score span{font-size:32px;letter-spacing:0;color:var(--muted);margin-left:5px}.hero-proof>p{margin:8px 0 22px}.spark{display:flex;gap:5px;margin:24px 0 30px}.spark i{background:var(--green);height:25px;flex:1;border-radius:2px}.spark .broken{background:repeating-linear-gradient(135deg,#efad8b,#efad8b 2px,transparent 2px,transparent 5px)}.receipt{border-top:1px solid var(--line);padding-top:20px;display:grid;grid-template-columns:1.2fr 1fr;gap:9px;font:12px/1.6 ui-monospace,monospace}.receipt span{color:var(--muted)}.receipt b{text-align:right;font-weight:450}.hero-proof .caption{margin:25px 0 0;font-size:11px}.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0}.facts>div{display:flex;flex-direction:column;padding-left:28px;border-right:1px solid var(--line)}.facts>div:first-child{padding-left:0}.facts>div:last-child{border:0}.facts strong{font-size:28px;font-weight:550}.facts span{font-size:12px;color:var(--muted)}section{min-width:0}.explorer{padding-top:80px}.section-top{display:flex;align-items:end;justify-content:space-between;gap:30px}.section-top>p{font-size:13px;color:var(--muted)}h2{font-size:clamp(28px,3vw,39px);font-weight:550;letter-spacing:-1.4px;line-height:1.15;margin:14px 0 24px}.task-switch{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.task-switch button{background:var(--panel);border:1px solid var(--line);text-align:left;padding:17px 20px;border-radius:5px;font-size:16px}.task-switch button[aria-pressed=true]{background:#21382d;border-color:var(--green)}.task-switch span{display:block;font-size:12px;color:var(--muted);padding-left:27px;margin-top:3px}.selection{display:flex;justify-content:space-between;align-items:end;gap:24px;margin:26px 0}.selection>div:first-child{flex:1;max-width:450px}label{font-size:12px;color:var(--muted);display:block;margin-bottom:8px}select{background:var(--panel);border:1px solid var(--line);color:var(--ink);width:100%;padding:12px;border-radius:4px}.selection-links{display:flex;gap:20px;font-size:12px}.result{background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:24px;display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:30px;align-items:center}.result>div>strong{display:block;font-size:40px;letter-spacing:-2px;font-weight:550}.result p{font-size:12px;color:var(--muted);max-width:340px;margin:9px 0 0}.result .muted{font-size:11px}.story{border-left:2px solid var(--coral);padding:9px 18px;font-size:14px;color:var(--muted);margin:24px 0}.dimensions{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:20px;margin:28px 0 32px}.dimension>div{display:flex;justify-content:space-between;font:11px/1.6 ui-monospace,monospace;margin-bottom:6px}.dimension meter{width:100%;height:10px;accent-color:var(--green)}.evidence{display:grid;grid-template-columns:250px minmax(0,1fr);border:1px solid var(--line);border-radius:7px;overflow:hidden}h3{font-size:15px;letter-spacing:-.3px;font-weight:600}aside{background:#141d1f;padding:16px;border-right:1px solid var(--line)}aside h3{margin:8px 6px 15px}#cases{display:flex;flex-direction:column;gap:5px}#cases button{font:11px/1.5 ui-monospace,monospace;background:none;border:1px solid transparent;text-align:left;overflow-wrap:anywhere;padding:10px 9px;border-radius:4px}#cases button[aria-pressed=true]{background:#293739;border-color:#73857d}#cases button span{margin-right:8px}.case-detail{padding:22px;min-width:0}.case-heading{display:flex;justify-content:space-between;align-items:start;gap:12px}.case-heading h3{overflow-wrap:anywhere;margin:0 0 20px}.check-list{display:flex;flex-wrap:wrap;gap:7px}.check-list span{font:10px/1.5 ui-monospace,monospace;padding:3px 7px;border:1px solid var(--line);border-radius:3px}#case-error{font-size:12px;color:var(--coral);overflow-wrap:anywhere}input[type=range]{width:100%;accent-color:var(--green)}#trace-panel>label{margin-top:24px;display:flex;justify-content:space-between}.step-buttons{display:flex;justify-content:space-between;margin:8px 0 20px}.step-buttons button{border:1px solid var(--line);border-radius:4px;background:var(--panel);padding:6px 12px;font-size:12px}.step-buttons button:disabled{opacity:.4;cursor:default}.trace-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}h4{font-size:11px;font-weight:500;color:var(--muted);margin:5px 0 9px}pre{font:11px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;background:#0c1214;border:1px solid #283436;padding:15px;overflow:auto;border-radius:5px;tab-size:2;max-height:420px;margin:0}summary{cursor:pointer;color:var(--muted);font-size:12px;padding:16px 0}details pre{margin-bottom:10px}.provenance pre{overflow-wrap:anywhere;white-space:pre-wrap}.reproduce{padding:90px 0 60px;display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:center}.reproduce p{font-size:14px;color:var(--muted);max-width:440px}.reproduce a{font-size:14px;color:var(--green)}.terminal{border:1px solid var(--line);border-radius:7px;overflow:hidden}.terminal>div{padding:13px 18px;font:10px ui-monospace,monospace;background:var(--panel);color:var(--muted)}.terminal pre{border:0;border-radius:0;padding:24px;font-size:12px;max-height:none}.terminal>p{font-size:11px;padding:0 20px}.scope{border-top:1px solid var(--line);padding:25px 0 30px;display:grid;grid-template-columns:1fr 2fr;gap:40px}.scope p{font-size:12px;color:var(--muted)}footer{display:flex;align-items:center;gap:25px;border-top:1px solid var(--line);padding-top:24px;padding-bottom:32px;font-size:12px;color:var(--muted)}footer .wordmark{color:var(--ink);font-size:20px}footer p{margin-right:auto}#coding-panel p{font-size:13px;color:var(--muted)}.skip{position:absolute;top:-60px;left:16px;padding:8px 16px;background:var(--green);color:var(--bg);z-index:2}.skip:focus{top:8px}
@media(max-width:950px){header,main,footer{padding-left:25px;padding-right:25px}.hero{gap:30px;padding-top:50px}h1{letter-spacing:-4px}.hero-proof{padding:22px}.receipt{font-size:10px}.section-top{display:block}.section-top>p{display:none}.evidence{grid-template-columns:205px minmax(0,1fr)}.case-detail{padding:16px}.trace-grid{grid-template-columns:1fr}.reproduce{gap:30px}.result{gap:20px}.result>div>strong{font-size:34px}}
@media(max-width:640px){header,main,footer{padding-left:20px;padding-right:20px}header{padding-top:20px;padding-bottom:20px}.wordmark span{display:none}nav{gap:18px}.hero{grid-template-columns:1fr;gap:36px;padding:40px 0}h1{font-size:62px}.intro{font-size:18px}.hero-proof{transform:none}.hero-score{font-size:96px}.receipt{font-size:12px}.facts{grid-template-columns:1fr 1fr;gap:20px 0}.facts>div{padding-left:18px}.facts>div:nth-child(3){padding-left:0}.facts>div:nth-child(2){border:0}.explorer{padding-top:50px}.task-switch button{padding:13px 10px;font-size:13px}.task-switch span{font-size:10px;padding-left:0}.selection{display:block}.selection-links{margin-top:16px;gap:24px}.result{grid-template-columns:1fr 1.2fr;padding:16px;gap:20px 12px}.result>div:last-child{grid-column:1/-1;display:flex;align-items:baseline;gap:15px;border-top:1px solid var(--line);padding-top:14px}.result>div:last-child>strong{font-size:24px}.evidence{grid-template-columns:1fr}aside{border-right:0;border-bottom:1px solid var(--line)}#cases{display:grid;grid-template-columns:1fr 1fr}#cases button{font-size:10px}.case-heading{display:block}.case-heading h3{margin-bottom:10px}.case-heading .badge{margin-bottom:14px}.reproduce{grid-template-columns:1fr;padding:60px 0 40px}.scope{grid-template-columns:1fr;gap:0}.scope h3{margin-bottom:0}footer{flex-wrap:wrap;gap:16px}footer p{margin:0;flex:1}.dimensions{gap:14px}pre{font-size:10px}.hero-proof .caption{font-size:11px}}
.regression{padding-top:70px}.regression>.muted{font-size:14px;max-width:780px}.comparison-summary{margin:26px 0;display:grid;grid-template-columns:1fr 40px 1fr 1fr;gap:20px;align-items:center;padding:24px;border:1px solid #758877;border-radius:7px;background:linear-gradient(125deg,#20332b,var(--panel))}.comparison-summary strong{display:block;font-size:48px;font-weight:550;letter-spacing:-2px}.comparison-arrow{font-size:26px;color:var(--muted)}.comparison-verdict p{font:12px/1.6 ui-monospace,monospace;color:var(--green)}.changed-cases{display:flex;gap:10px;flex-wrap:wrap}.changed-cases button{border:1px solid var(--line);background:var(--panel);border-radius:4px;padding:12px;font:12px/1.5 ui-monospace,monospace;text-align:left}.changed-cases button span{display:block;font-size:10px;margin-bottom:4px}.changed-cases button[aria-pressed=true]{border-color:var(--green);background:#263833}.comparison-states{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}.comparison-states article{background:var(--panel);border:1px solid var(--line);padding:20px;border-radius:6px;min-width:0}.comparison-states h3{display:flex;align-items:center;justify-content:space-between;margin:0 0 15px}.comparison-states h4{margin-top:20px}.comparison-states pre{max-height:300px}.comparison-links{display:flex;flex-wrap:wrap;gap:14px 24px;font-size:12px;margin-top:22px}
@media(max-width:750px){.comparison-summary{grid-template-columns:1fr 24px 1fr;gap:12px;padding:18px}.comparison-summary .eyebrow{font-size:9px}.comparison-summary strong{font-size:36px}.comparison-verdict{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:15px}.comparison-states{grid-template-columns:1fr}.regression{padding-top:50px}.changed-cases{display:grid;grid-template-columns:1fr}.changed-cases button{display:flex;justify-content:space-between;gap:14px;align-items:center;font-size:11px}.changed-cases button span{margin:0}.comparison-verdict p{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.hero-secondary{display:block;margin-top:18px;font-size:13px;color:var(--green)}.repeat{padding-top:70px}.repeat>.muted{max-width:920px;font-size:14px}.repeat-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:7px;background:var(--panel);padding:24px;gap:20px;margin:26px 0}.repeat-summary strong{display:block;font-size:36px;font-weight:550;letter-spacing:-1px}.repeat-summary .eyebrow{font-size:9px}.repeat-attempts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.repeat-attempt{display:flex;flex-direction:column;align-items:start;gap:16px;border:1px solid var(--line);border-top:3px solid currentColor;border-radius:7px;background:linear-gradient(145deg,#22312b,var(--panel));padding:24px;text-decoration:none;font:11px ui-monospace,monospace}.repeat-attempt.fail{background:linear-gradient(145deg,#332a24,var(--panel))}.repeat-attempt strong{font:550 44px/1.2 system-ui,sans-serif;letter-spacing:-2px;color:var(--ink)}.repeat-attempt .caption{font-size:10px}.repeat-cases{margin-top:24px;border:1px solid var(--line);border-radius:7px;padding:0 18px}.repeat-cases details+details{border-top:1px solid var(--line)}.repeat-cases summary{display:flex;justify-content:space-between;gap:20px;font:12px/1.5 ui-monospace,monospace;overflow-wrap:anywhere}.repeat-cases summary::before{content:"+";color:var(--green)}.repeat-cases details[open] summary::before{content:"−"}.repeat-cases summary>span:first-child{flex:1}.repeat-cases summary>span:last-child{flex-shrink:0}.repeat>.caption{font-size:12px;max-width:960px;margin-top:24px}
@media(max-width:750px){.repeat{padding-top:50px}.repeat-summary{grid-template-columns:1fr 1fr;padding:18px;gap:20px 14px}.repeat-summary strong{font-size:32px}.repeat-attempts{grid-template-columns:1fr}.repeat-attempt{display:grid;grid-template-columns:1fr 1fr;align-items:center;padding:18px}.repeat-attempt strong{font-size:36px;text-align:right}.repeat-attempt .caption{text-align:right}.repeat-cases{padding:0 12px}.repeat-cases summary{font-size:10px;gap:9px}}
.repeat-attempt.fail:hover{color:var(--coral);border-color:var(--coral)}.repeat-attempt.pass:hover{color:var(--green);border-color:var(--green)}
.suite{padding-top:70px}.suite>.muted{max-width:940px;font-size:14px}.suite-comparison{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;margin-top:28px}.suite-comparison article{min-width:0;padding:24px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.suite-comparison h3{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:18px 0}.suite-comparison strong{font-size:54px;font-weight:550;letter-spacing:-2px}.suite-comparison pre{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.9;margin:20px 0}.suite-comparison a{font-size:12px}.suite .caption{font-size:12px;color:var(--muted);margin-top:24px}.suite #suite-summary{font-size:13px}.suite-comparison .fail{font:12px/1.6 ui-monospace,monospace}
@media(max-width:750px){.suite{padding-top:50px}.suite-comparison{grid-template-columns:1fr}.suite-comparison article{padding:20px}.suite-comparison strong{font-size:46px}}

/* Explicit navigation, recoverable requests and readable evidence on small screens. */
:focus-visible{outline:3px solid var(--green);outline-offset:4px}
[tabindex="-1"]{scroll-margin-block:24px}
button{min-height:44px}
button:disabled{opacity:.5;cursor:default}
.section-nav{flex-wrap:wrap;gap:8px 20px;border-bottom:1px solid var(--line);padding:14px 0}
.section-nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--green)}
.recovery,.case-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:12px 0}
.recovery button,.case-actions button{border:1px solid var(--line);border-radius:5px;background:var(--panel);padding:8px 12px;font-size:12px}
.recovery a{font-size:13px;color:var(--green)}
#share-status{font-size:12px;overflow-wrap:anywhere}
#share-url{width:100%;min-height:44px;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:10px;margin-bottom:12px}
#cases button,pre{font-size:12px}
#trace-step{min-height:32px}
.hero>div,.hero-proof,.trace-grid>div{min-width:0}
@media(max-width:950px){.trace-grid{grid-template-columns:minmax(0,1fr)}}
@media(max-width:640px){
  .hero{grid-template-columns:minmax(0,1fr)}
  h1{font-size:clamp(48px,17vw,62px)}
  .hero-score{font-size:clamp(60px,24vw,96px)}
  .primary{max-width:100%;gap:12px;align-items:center}
  .proof-top{flex-wrap:wrap}
  .receipt{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);overflow-wrap:anywhere;font-size:11px}
}