:root{--ink:#0c2340;--paper:#f6f2e9;--card:#fff;--gold:#ffb703;--mint:#b7e4c7;--red:#d1495b;--line:#bcc5cf;--muted:#566477;--blue:#dce8f6;--shadow:7px 7px 0 var(--ink)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}.ff-skip{position:absolute;left:-999px;top:8px}.ff-skip:focus{left:8px;z-index:50;background:#fff;padding:10px;border:2px solid var(--ink)}.ff-shell{width:min(1180px,calc(100% - 36px));margin:auto}.ff-header{background:#fff;border-bottom:3px solid var(--ink);position:sticky;top:0;z-index:20}.ff-nav{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.ff-logo{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:1.22rem;font-weight:950;text-decoration:none}.ff-logo img{width:48px;height:48px}.ff-links{display:flex;align-items:center;gap:22px}.ff-links a{color:var(--ink);font-weight:800;text-decoration:none}.ff-button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;border:2px solid var(--ink);background:var(--gold);color:var(--ink);font-weight:950;text-decoration:none;box-shadow:4px 4px 0 var(--ink);cursor:pointer}.ff-button:hover,.ff-button:focus{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}.ff-button--small{min-height:42px}.ff-hero{padding:72px 0 64px;border-bottom:3px solid var(--ink);background:linear-gradient(120deg,#fff 0 62%,var(--blue) 62%)}.ff-eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.18em;font-weight:950;color:#37536f}.ff-hero h1,.ff-page-hero h1{font-size:clamp(2.7rem,7vw,6.7rem);line-height:.93;letter-spacing:-.055em;margin:18px 0 24px;max-width:980px}.ff-lede{font-size:clamp(1.15rem,2vw,1.5rem);max-width:760px;color:#3e4b5c}.ff-proof{display:grid;grid-template-columns:repeat(4,1fr);background:var(--ink);color:#fff}.ff-proof span{padding:18px;text-align:center;font-weight:850;border-right:1px solid #536982}.ff-section{padding:70px 0}.ff-section--blue{background:var(--blue);border-block:3px solid var(--ink)}.ff-section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:34px}.ff-section h2,.ff-page-hero h1{font-weight:950}.ff-section h2{font-size:clamp(2rem,4vw,3.8rem);line-height:1;margin:8px 0}.ff-section-head p{max-width:580px}.ff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.ff-card{background:#fff;border:2px solid var(--ink);padding:26px;box-shadow:var(--shadow)}.ff-card small{font-weight:950;text-transform:uppercase;letter-spacing:.12em;color:#4c6076}.ff-card h3{font-size:1.42rem;line-height:1.15;margin:12px 0}.ff-card a{color:var(--ink);font-weight:900}.ff-breadcrumbs{padding-top:24px;font-size:.9rem}.ff-breadcrumbs a{color:var(--ink)}.ff-page-hero{padding:48px 0 46px}.ff-page-hero h1{font-size:clamp(2.7rem,6vw,5.6rem)}.ff-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}.ff-prose{font-size:1.08rem}.ff-prose h2{font-size:2rem;margin:42px 0 12px}.ff-prose h3{font-size:1.35rem;margin:28px 0 8px}.ff-prose p,.ff-prose li{max-width:76ch}.ff-side{position:sticky;top:112px;background:#fff;border:2px solid var(--ink);padding:22px;box-shadow:5px 5px 0 var(--ink)}.ff-side a{display:block;color:var(--ink);font-weight:800;padding:8px 0}.ff-model{background:#fff;border:3px solid var(--ink);box-shadow:var(--shadow);margin:28px 0}.ff-model-head{padding:18px 22px;background:var(--ink);color:#fff;display:flex;justify-content:space-between;gap:20px}.ff-form{padding:24px}.ff-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.ff-field label{display:block;font-weight:900;margin-bottom:6px}.ff-field input,.ff-field select,.ff-field textarea{width:100%;min-height:48px;border:2px solid var(--ink);padding:10px;background:#fff;font:inherit}.ff-field textarea{min-height:110px}.ff-result{margin:0 24px 24px;padding:24px;border:2px solid var(--ink);background:var(--mint)}.ff-result strong{display:block;font-size:2.3rem;line-height:1.1}.ff-result dl{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.ff-result dt{font-size:.8rem;text-transform:uppercase;font-weight:900}.ff-result dd{margin:3px 0;font-weight:850}.ff-trace{border-left:6px solid var(--gold);background:#fff;padding:20px 24px}.ff-trace code{white-space:normal;word-break:break-word}.ff-table{width:100%;border-collapse:collapse;background:#fff}.ff-table th,.ff-table td{border:1px solid var(--line);padding:13px;text-align:left;vertical-align:top}.ff-table th{background:var(--ink);color:#fff}.ff-callout{background:#fff4cc;border:2px solid var(--ink);padding:22px;margin:26px 0}.ff-source-list{display:grid;gap:14px}.ff-source-list a{display:block;background:#fff;border:2px solid var(--ink);padding:18px;color:var(--ink);text-decoration:none}.ff-source-list span{display:block;color:var(--muted);margin-top:4px}.ff-footer{background:var(--ink);color:#fff;padding:46px 0}.ff-footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.ff-footer a{color:#fff}.ff-footer .ff-logo{color:#fff}.ff-fine{color:#d6e0ea;max-width:600px}.ff-error{background:#ffe2e2}.ff-footer img{background:#fff;border-radius:10px}@media(max-width:820px){.ff-links>a:not(.ff-button){display:none}.ff-proof{grid-template-columns:1fr 1fr}.ff-grid{grid-template-columns:1fr}.ff-layout{grid-template-columns:1fr}.ff-side{position:static}.ff-fields{grid-template-columns:1fr}.ff-result dl{grid-template-columns:1fr}.ff-footer-grid{grid-template-columns:1fr}}@media(max-width:520px){.ff-shell{width:min(100% - 24px,1180px)}.ff-hero{padding:48px 0;background:#fff}.ff-proof{grid-template-columns:1fr}.ff-page-hero h1{font-size:2.75rem}.ff-section{padding:48px 0}.ff-section-head{display:block}.ff-result{margin-inline:14px}.ff-form{padding:16px}}