.rfa-app{--navy:#273850;--navy-deep:#16202e;--sage:#c8dd9c;--sage-deep:#53662b;--peach:#ffd5af;--ice:#e8f0f4;--ice-blue:#c8dee9;--bg:#fbfbf9;--surface:#fff;--border:#e2e5e3;--border-strong:#c6ccc9;--rule:#273850;--ink:#1c2733;--ink-2:#46525f;--ink-3:#78838f;--accent:#35608f;--head:var(--navy);--nav-bg:var(--navy-deep);--serif:"STIX Two Text", "Times New Roman", serif;--sans:"Public Sans", -apple-system, "Segoe UI", sans-serif;--mono:"IBM Plex Mono", ui-monospace, "SF Mono", monospace}html[data-theme=dark] .rfa-app{--bg:#151c25;--surface:#1a2330;--border:#2b3542;--border-strong:#41505e;--rule:#9db2c8;--ink:#e7ebf0;--ink-2:#b4bdc7;--ink-3:#8792a0;--accent:#7ba1d2;--head:#dfe7f0;--nav-bg:#10161f}.rfa-app *,.rfa-app :before,.rfa-app :after{box-sizing:border-box}html:has(.rfa-app){scroll-behavior:smooth;overflow-x:clip}.rfa-app{font-family:var(--sans);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}@media (prefers-reduced-motion:reduce){html:has(.rfa-app){scroll-behavior:auto}}.rfa-app .wrap{max-width:1180px;margin:0 auto;padding:0 28px}.rfa-app section.band{padding:64px 0 76px}.rfa-app section.band+section.band .wrap{border-top:1px solid var(--border-strong);padding-top:56px}.rfa-app section.band+section.band{padding-top:0}.rfa-app .kicker{font:500 11.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 16px}.rfa-app h2.sect{font:600 clamp(26px, 3.2vw, 36px) / 1.18 var(--serif);color:var(--head);letter-spacing:0;max-width:30ch;margin:0 0 14px}.rfa-app p.lede{color:var(--ink-2);max-width:66ch;margin:0 0 40px;font-size:16.5px}.rfa-app p.lede strong{color:var(--ink);font-weight:600}.rfa-app .hero{border-bottom:1px solid var(--border-strong);padding:64px 0 56px}.rfa-app .hero-grid{grid-template-columns:.95fr 1.05fr;align-items:center;gap:64px;display:grid}@media (max-width:940px){.rfa-app .hero-grid{grid-template-columns:1fr;gap:44px}}.rfa-app .hero .kicker{color:var(--sage-deep)}html[data-theme=dark] .rfa-app .hero .kicker{color:var(--sage)}.rfa-app .hero h1{font:600 clamp(32px, 4.2vw, 46px) / 1.16 var(--serif);color:var(--head);letter-spacing:-.005em;margin:0 0 22px}.rfa-app .hero h1 em{font-style:italic;font-weight:500}.rfa-app .hero p.sub{color:var(--ink-2);max-width:54ch;margin:0 0 26px;font-size:17px}.rfa-app .hero p.sub strong{color:var(--ink);font-weight:600}.rfa-app .hero-cite{font:400 13px/1.65 var(--sans);color:var(--ink-3);border-top:1px solid var(--border-strong);max-width:58ch;padding-top:14px}.rfa-app .hero-cite a{color:var(--accent);text-decoration:none}.rfa-app .hero-cite a:hover{text-decoration:underline}.rfa-app .hero-fig{min-width:0}.rfa-app .hero-fig .figcap{margin-top:10px}.rfa-app .data-strip{grid-template-columns:repeat(3,1fr);gap:40px;display:grid}@media (max-width:760px){.rfa-app .data-strip{grid-template-columns:1fr;gap:22px}}.rfa-app .datum{border-top:2px solid var(--rule);padding-top:12px}.rfa-app .datum .d-value{font:600 34px/1.1 var(--serif);color:var(--ink);font-variant-numeric:tabular-nums}.rfa-app .datum .d-value .up{color:var(--sage-deep)}html[data-theme=dark] .rfa-app .datum .d-value .up{color:var(--sage)}.rfa-app .datum .d-label{font:500 11px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-top:6px}.rfa-app .datum .d-note{font:400 13px/1.55 var(--sans);color:var(--ink-2);margin-top:6px}.rfa-app .figure{border-top:2px solid var(--rule);min-width:0;margin-top:8px;padding-top:16px}.rfa-app .figure h3{font:600 16.5px/1.35 var(--serif);color:var(--ink);margin:0 0 4px}.rfa-app .figno{font:600 11.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--sage-deep);margin-bottom:8px;display:block}html[data-theme=dark] .rfa-app .figno{color:var(--sage)}.rfa-app .figure .sub{font:400 13.5px/1.55 var(--sans);color:var(--ink-2);max-width:78ch;margin:0 0 20px}.rfa-app .figcap,.rfa-app .chart-note{font:400 12.5px/1.6 var(--sans);color:var(--ink-3);border-top:1px solid var(--border);max-width:90ch;margin-top:12px;padding-top:10px}.rfa-app .figcap strong,.rfa-app .chart-note strong{color:var(--ink-2);font-weight:600}.rfa-app .controls{flex-wrap:wrap;align-items:flex-end;gap:22px 44px;margin:2px 0 22px;display:flex}.rfa-app .control{flex:1;min-width:220px;max-width:320px}.rfa-app .control label{font:500 12.5px/1.4 var(--sans);color:var(--ink-2);justify-content:space-between;margin-bottom:7px;display:flex}.rfa-app .control label output{font:500 12.5px/1.4 var(--mono);color:var(--ink);font-variant-numeric:tabular-nums}.rfa-app input[type=range]{width:100%;accent-color:var(--navy);height:22px}html[data-theme=dark] .rfa-app input[type=range]{accent-color:var(--sage)}.rfa-app .seg{border:1px solid var(--border-strong);border-radius:2px;display:inline-flex;overflow:hidden}.rfa-app .seg button{font:500 12px/1 var(--mono);color:var(--ink-2);cursor:pointer;background:0 0;border:0;padding:9px 13px}.rfa-app .seg button+button{border-left:1px solid var(--border-strong)}.rfa-app .seg button.on{background:var(--navy);color:#fff}html[data-theme=dark] .rfa-app .seg button.on{background:var(--sage);color:#10161f}.rfa-app .seg button:focus-visible,.rfa-app .proj-tab:focus-visible,.rfa-app a:focus-visible,.rfa-app input:focus-visible,.rfa-app summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.rfa-app .legend{font:400 11.5px/1.4 var(--mono);color:var(--ink-2);flex-wrap:wrap;gap:8px 20px;margin:2px 0 12px;display:flex}.rfa-app .legend .key{align-items:center;gap:7px;display:inline-flex}.rfa-app .legend .key i{flex-shrink:0;width:14px;height:3px;display:inline-block}.rfa-app .legend .key i.dot{border-radius:50%;width:9px;height:9px}.rfa-app .tt{background:var(--surface);border:1px solid var(--border-strong);font:400 12px/1.6 var(--mono);color:var(--ink-2);border-radius:2px;padding:10px 14px;box-shadow:0 4px 14px -6px #16202e59}.rfa-app .tt b{color:var(--ink);font-weight:600}.rfa-app .tt .row{align-items:center;gap:8px;display:flex}.rfa-app .tt .row i{border-radius:50%;width:8px;height:8px;display:inline-block}.rfa-app .tt .val{font-variant-numeric:tabular-nums;color:var(--ink);margin-left:auto;padding-left:14px;font-weight:600}.rfa-app details.tableview{margin-top:12px}.rfa-app details.tableview summary{font:500 12px/1 var(--mono);color:var(--accent);cursor:pointer;-webkit-user-select:none;user-select:none}.rfa-app details.tableview .tscroll{overflow-x:auto}.rfa-app details.tableview table{border-collapse:collapse;width:100%;font:400 12.5px/1.5 var(--mono);margin-top:10px}.rfa-app details.tableview th{text-align:right;color:var(--ink-2);border-bottom:1px solid var(--border-strong);white-space:nowrap;padding:6px 10px;font-weight:600}.rfa-app details.tableview th:first-child,.rfa-app details.tableview td:first-child{text-align:left}.rfa-app details.tableview td{text-align:right;border-bottom:1px solid var(--border);font-variant-numeric:tabular-nums;color:var(--ink-2);padding:5px 10px}.rfa-app .primer-list{counter-reset:primer;border-top:2px solid var(--rule);grid-template-columns:1fr 1fr;margin:0;padding:0;list-style:none;display:grid}.rfa-app .primer-list li{counter-increment:primer;border-bottom:1px solid var(--border);padding:28px 44px 34px 0}.rfa-app .primer-list li:nth-child(2n){border-left:1px solid var(--border);padding:28px 0 34px 44px}.rfa-app .primer-list li:before{content:counter(primer, lower-roman);font:400 34px/1 var(--serif);color:var(--sage-deep);margin-bottom:14px;font-style:italic;display:block}html[data-theme=dark] .rfa-app .primer-list li:before{color:var(--sage)}.rfa-app .primer-list h3{font:600 18px/1.4 var(--serif);color:var(--ink);margin:0}.rfa-app .primer-list p{font:400 14.5px/1.7 var(--sans);color:var(--ink-2);max-width:52ch;margin:8px 0 0}.rfa-app .primer-callout{background:var(--navy);color:var(--ice);font:400 17.5px/1.75 var(--serif);max-width:none;margin-top:48px;padding:36px 44px 38px}.rfa-app .primer-callout b{font:500 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--sage);margin-bottom:14px;display:block}html[data-theme=dark] .rfa-app .primer-callout{background:#202f44}@media (max-width:760px){.rfa-app .primer-list{grid-template-columns:1fr}.rfa-app .primer-list li,.rfa-app .primer-list li:nth-child(2n){border-left:0;padding:22px 0 26px}.rfa-app .primer-callout{padding:26px 24px 28px;font-size:16px}}.rfa-app .proj-tabs{border:1px solid var(--border-strong);border-radius:2px;flex-wrap:wrap;gap:0;margin-bottom:30px;display:flex;overflow:hidden}.rfa-app .proj-tab{text-align:left;cursor:pointer;background:0 0;border:0;flex:1;min-width:190px;padding:13px 18px}.rfa-app .proj-tab+.proj-tab{border-left:1px solid var(--border-strong)}.rfa-app .proj-tab b{font:600 13.5px/1.3 var(--sans);color:var(--ink);display:block}.rfa-app .proj-tab span{font:400 11px/1.5 var(--mono);color:var(--ink-3)}.rfa-app .proj-tab.on{background:var(--navy)}.rfa-app .proj-tab.on b{color:#fff}.rfa-app .proj-tab.on span{color:var(--ice-blue)}html[data-theme=dark] .rfa-app .proj-tab.on{background:#2c3d55}.rfa-app .case-grid{grid-template-columns:2.1fr 1fr;align-items:start;gap:44px;display:grid}@media (max-width:980px){.rfa-app .case-grid{grid-template-columns:1fr;gap:28px}}.rfa-app .case-side{align-content:start;gap:22px;display:grid}.rfa-app .tile{border-top:1px solid var(--border-strong);padding-top:10px}.rfa-app .tile .t-label{font:500 10.5px/1.5 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3)}.rfa-app .tile .t-value{font:600 27px/1.15 var(--serif);color:var(--ink);font-variant-numeric:tabular-nums;margin-top:3px}.rfa-app .tile .t-note{font:400 12.5px/1.55 var(--sans);color:var(--ink-2);margin-top:4px}.rfa-app .tile .up{color:var(--sage-deep)}html[data-theme=dark] .rfa-app .tile .up{color:var(--sage)}@media (max-width:700px){.rfa-app .proj-tabs{grid-template-columns:1fr 1fr;display:grid}.rfa-app .proj-tab{min-width:0;padding:10px 12px}.rfa-app .proj-tab:nth-child(2n){border-left:1px solid var(--border-strong)}.rfa-app .proj-tab:nth-child(n+3){border-top:1px solid var(--border-strong)}.rfa-app .case-side{grid-template-columns:1fr 1fr;gap:16px}.rfa-app .case-side .tile .t-value{font-size:21px}.rfa-app .controls{gap:16px 24px}.rfa-app section.band{padding:48px 0 56px}.rfa-app .primer-list li{grid-template-columns:34px 1fr;gap:0 12px}}.rfa-app .hm-scroll{padding-bottom:6px;overflow-x:auto}.rfa-app .hm{border-collapse:separate;border-spacing:2px;width:100%;min-width:780px}.rfa-app .hm th{font:500 10.5px/1.3 var(--mono);color:var(--ink-3);padding:4px 6px;font-weight:500}.rfa-app .hm th.rowh{text-align:right;white-space:nowrap;color:var(--ink-2);font:600 12px/1.3 var(--sans);padding-right:12px}.rfa-app .hm td{text-align:center;min-width:56px;padding:7px 4px 6px}.rfa-app .hm td b{font:600 12.5px/1.2 var(--mono);display:block}.rfa-app .hm td span{font:400 10px/1.4 var(--mono);opacity:.85;display:block}.rfa-app .hm td.void{background:repeating-linear-gradient(45deg, transparent 0 5px, var(--border) 5px 6px);opacity:.55}.rfa-app .calc-grid{grid-template-columns:320px 1fr;align-items:start;gap:44px;display:grid}@media (max-width:980px){.rfa-app .calc-grid{grid-template-columns:1fr;gap:28px}}.rfa-app .field{margin-bottom:20px}.rfa-app .field>label{font:500 12.5px/1.4 var(--sans);color:var(--ink-2);justify-content:space-between;margin-bottom:7px;display:flex}.rfa-app .field>label output{font:500 12.5px/1.4 var(--mono);color:var(--ink);font-variant-numeric:tabular-nums}.rfa-app .field input[type=number]{width:100%;font:500 14px/1 var(--mono);color:var(--ink);background:var(--surface);border:1px solid var(--border-strong);border-radius:2px;padding:10px 12px}.rfa-app .calc-tiles{grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:22px;margin-bottom:24px;display:grid}.rfa-app .calc-tiles .tile .t-value{font-size:23px}.rfa-app .eq-grid{grid-template-columns:1fr 1fr;gap:40px 56px;display:grid}@media (max-width:860px){.rfa-app .eq-grid{grid-template-columns:1fr;gap:28px}}.rfa-app .eq{font-family:var(--serif);color:var(--ink);margin:14px 0 10px;padding:6px 2px;font-size:18px;overflow-x:auto}.rfa-app .eq .frac{text-align:center;vertical-align:middle;flex-direction:column;margin:0 4px;display:inline-flex}.rfa-app .eq .frac>i{padding:0 6px 2px;font-style:normal}.rfa-app .eq .frac>u{border-top:1.5px solid;padding:2px 6px 0;text-decoration:none}.rfa-app .eq sub,.rfa-app .eq sup{font-size:.62em}.rfa-app .eq .intg{vertical-align:-.18em;margin-right:2px;font-size:1.5em}.rfa-app .param-list{font:400 13.5px/1.7 var(--sans);color:var(--ink-2);margin:8px 0 0;padding-left:18px}.rfa-app .param-list b{color:var(--ink);font-weight:600}.rfa-app .visually-hidden{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.rfa-app{flex:1}.rfa-app ul.param-list{list-style:outside}.rfa-app ol.primer-list{list-style:none}.rfa-app{--serif:var(--font-domine), "Times New Roman", serif;--sans:var(--font-montserrat), -apple-system, "Segoe UI", sans-serif;--mono:var(--font-geist-mono), ui-monospace, "SF Mono", monospace}.rfa-app svg text{font-family:var(--mono)!important}.rfa-app .wrap{max-width:1280px}.rfa-app .hero{padding-top:136px}.rfa-app section.band,.rfa-app .hero{scroll-margin-top:84px}.rfa-app .jump{flex-wrap:wrap;gap:6px 18px;margin-top:18px;display:flex}.rfa-app .jump a{font:500 12px/1 var(--mono);letter-spacing:.02em;color:var(--accent);padding:4px 0;text-decoration:none}.rfa-app .jump a:hover{text-decoration:underline}.rfa-app section.band.closing{padding:34px 0 44px}.rfa-app section.band.closing .wrap{font:400 13px/1.7 var(--sans);color:var(--ink-3);padding-top:24px}.rfa-app section.band.closing a{color:var(--accent);text-decoration:none}.rfa-app section.band.closing a:hover{text-decoration:underline}