:root{--ink:#15123A;--violet:#4B3FE0;--v2:#6C63FF;--lav:#F4F2FF;--lav2:#E6E1FF;--yel:#FFD93D;--yel-d:#D9B000;--muted:#5F5C85;
--display:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;--body:Figtree,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--wrap:1200px}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:var(--body);color:var(--ink);background:#fff;font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased}
h1,h2{font-family:var(--display);margin:0;letter-spacing:-.03em;line-height:1.15}
p{margin:0}a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;z-index:100;background:#fff;padding:10px 14px;border-radius:8px}
:focus-visible{outline:3px solid var(--yel);outline-offset:3px;border-radius:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--yel);color:var(--ink);font:700 16px/1 var(--body);border:0;border-radius:14px;padding:15px 22px;box-shadow:0 5px 0 var(--yel-d);text-decoration:none;cursor:pointer}
.btn:hover{box-shadow:0 6px 0 var(--yel-d)}
header{background:var(--ink)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:12px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:21px;color:#fff;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.logo svg{width:28px;height:28px;display:block;flex:none}
.nav-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.nav-actions .quiet{color:#fff;opacity:.85;text-decoration:none;font-weight:600;font-size:15px;white-space:nowrap}
.nav-actions .quiet:hover{opacity:1}
.nav-actions .btn{padding:11px 18px;font-size:14px}
.hero-sm{background:var(--lav);padding:40px 0 28px}
.hero-sm h1{font-size:clamp(28px,4vw,38px);font-weight:800}
main{padding:32px 0 24px}
.prose{max-width:720px}
.prose .lead{color:var(--muted);font-size:17px;margin:0 0 8px;max-width:60ch}
.prose h2{font-size:21px;margin:30px 0 10px;font-weight:800}
.prose p,.prose li{color:var(--muted);font-size:16px;line-height:1.65;margin:0 0 14px}
.prose strong{color:var(--ink)}
.prose a{color:var(--violet);font-weight:600}
.prose a:hover{text-decoration:underline}
footer{border-top:1px solid var(--lav2);padding:28px 0 calc(28px + env(safe-area-inset-bottom,0px));font-size:14px;color:var(--muted);background:#fff}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
footer nav{display:flex;flex-wrap:wrap;gap:20px}
footer a{text-decoration:none}footer a:hover{text-decoration:underline}
footer b{color:var(--ink)}
.help-fab{position:fixed;right:20px;bottom:20px;z-index:40;height:52px;padding:0 20px;border-radius:999px;background:var(--yel);color:var(--ink);font-weight:700;border:0;font:inherit;cursor:pointer;box-shadow:0 10px 24px rgba(21,18,58,.25)}
.help-panel{position:fixed;right:20px;bottom:82px;z-index:40;width:280px;background:#fff;border:1px solid var(--lav2);border-radius:16px;padding:18px;display:none;box-shadow:0 20px 40px rgba(21,18,58,.15)}
.help-panel.open{display:block}
.help-panel h4{margin:0 0 8px;font-size:16px}
.help-panel p{margin:0 0 12px;color:var(--muted);font-size:14px;line-height:1.4}
.help-panel a{display:block;padding:10px 12px;border-radius:10px;background:var(--lav);margin-bottom:8px;color:var(--ink);font-size:14px;text-decoration:none}
@media (max-width:640px){
.nav{height:auto;padding:14px 0}
.nav-actions{gap:10px}
.nav-actions .quiet{font-size:13px}
.nav-actions .btn{padding:9px 14px;font-size:13px}
.hero-sm{padding:28px 0 20px}
main{padding:24px 0 16px}
}

h3{font-family:var(--display);line-height:1.2;letter-spacing:-.02em}
html{scroll-padding-top:24px} body{overflow-wrap:break-word}
main.wrap{padding:48px 24px;max-width:900px} main.wrap h1{margin-bottom:20px;font-size:clamp(28px,5vw,44px)}
.hero-band{background:var(--lav);padding:48px 0}.hero-band h1{font-size:clamp(30px,5vw,48px);max-width:850px;margin-bottom:18px}
.lead,.lede,.meta,.under,.hint,.foot-note,.chip-note,.step-body{color:var(--muted);line-height:1.6}
.lead,.lede{max-width:70ch;margin:16px 0}.section{padding:40px 0 56px}
.section>.wrap{max-width:940px}.card,.demo-shell{background:#fff;border:1px solid var(--lav2);border-radius:28px;padding:28px;margin-bottom:20px;box-shadow:0 2px 0 var(--lav2)}
.card h2{margin:0 0 12px;font-size:24px}.card h3{margin-top:0}.card p+p{margin-top:12px}
.btn{line-height:1.3;white-space:normal;text-align:center;max-width:100%}.btn-ghost{background:#fff;border:1px solid var(--lav2);box-shadow:0 3px 0 var(--lav2)}
.btn-lg{padding:16px 24px}.btn:disabled,button:disabled{opacity:.5;cursor:default}
.grid,.method-grid,.grid-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid .card{margin:0}
.track,.under,.cta-honest,.stat{background:var(--lav);border:1px solid var(--lav2);border-radius:16px;padding:20px;margin-top:20px}
.track h2,.track h3{margin:0 0 10px}.track p{color:var(--muted)}
.soft-cta,.links,.actions,.controls,.methods,.path-toggle{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:20px}
.cta-block{display:grid;gap:16px;margin:20px 0}.cta-block>div{min-width:0}.cta-honest{margin-top:0}
button,input,textarea{font:inherit}button{cursor:pointer}.chip,.method-btn,.actions button{color:var(--ink);border:1px solid var(--lav2);background:#fff;border-radius:14px;padding:12px 16px}
.chip[aria-pressed=true],.method-btn[aria-pressed=true],.method-btn:hover{background:var(--lav);border-color:var(--violet)}
.method-btn{text-align:left;padding:22px}.method-btn strong,.method-btn span{display:block}.method-btn strong{font-size:19px;margin-bottom:6px}.method-btn span{color:var(--muted)}
.actions button.primary{background:var(--yel);border-color:var(--yel);box-shadow:0 4px 0 var(--yel-d);font-weight:700}
.field{margin-bottom:18px}label{display:block;font-weight:600;margin-bottom:6px}label.field{margin:12px 0 6px}
input:not([type=checkbox]),textarea{width:100%;max-width:100%;border:2px solid var(--lav2);border-radius:12px;background:#fff;color:var(--ink);padding:12px 14px;font-size:16px}
textarea{min-height:100px;resize:vertical}.check{display:flex;align-items:flex-start;gap:10px;font-size:15px}.check input{margin-top:6px;accent-color:var(--violet)}
.hint,.foot-note{font-size:14px;margin-top:8px}.hidden,[hidden]{display:none!important}.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.demo-shell{padding:0;overflow:hidden}.demo-top{background:var(--ink);color:#fff;padding:16px 22px;display:flex;flex-wrap:wrap;gap:12px}.demo-body{padding:28px}.vw{margin-left:auto;font-size:13px}.demo-dots{display:flex;gap:4px}.demo-dots i{width:7px;height:7px;background:var(--yel);border-radius:50%;align-self:center}
.progress{display:flex;gap:6px;margin-bottom:18px}.pip{height:5px;flex:1;background:var(--lav2);border-radius:5px}.pip.on{background:var(--violet)}.pip.act{background:var(--yel)}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.pill,.badge{background:var(--lav);border-radius:999px;padding:5px 10px;font-size:13px}.pill.ok{background:#EAF6EE;color:#1E5B32}.pill.warn,.issues{background:#FFF6CF;color:#684E00}.step-title{font-size:26px;margin-bottom:12px}
.fixture{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}.fx{padding:12px;background:var(--lav);border-radius:12px;min-width:0}.fx dt{font-size:13px;color:var(--muted)}.fx dd{margin:4px 0 0;font-weight:600;overflow-wrap:anywhere}
.transport{padding:14px;background:var(--lav);border-radius:12px}.issues{border-radius:12px;padding:16px 16px 16px 34px}.eyebrow,.method-head{font-weight:700;margin-bottom:10px}.path-toggle{margin-top:0;margin-bottom:20px}
.msg{padding:14px;border-radius:12px}.msg.ok,.pos{color:#1E5B32}.msg.err,.neg{color:#8A1C1C}.stat{margin:0}.stat.span2{grid-column:1/-1}.stat .v{font-size:26px;font-weight:700}.stat .k{color:var(--muted);font-size:14px}.formula{white-space:pre-wrap;overflow-wrap:anywhere;padding:18px;background:var(--lav);border-radius:12px;font-size:13px}.example-row{border-left:3px solid var(--yel);padding-left:16px;margin-top:16px}.badge{display:inline-block;margin-bottom:12px}
.prose .btn{color:var(--ink);text-decoration:none}.prose{padding-bottom:32px}.prose h1{margin-bottom:20px}.prose li{margin-bottom:10px}.help-panel{max-width:calc(100vw - 40px)}
:root{--mint-deep:var(--violet);--mute:var(--muted)}
@media(max-width:640px){.nav{align-items:flex-start;gap:16px}.nav-actions{width:100%;justify-content:space-between;gap:8px}.grid,.method-grid,.grid-results,.fixture{grid-template-columns:1fr}.card,.demo-body{padding:22px}.hero-band{padding:32px 0}.section{padding:28px 0 40px}.soft-cta .btn,.links .btn{width:100%}.vw{margin-left:0}.help-fab{bottom:12px;right:12px}}