@font-face{font-family:Roboto;src:url('assets/fonts/roboto-latin-400-normal.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Roboto;src:url('assets/fonts/roboto-latin-500-normal.woff2') format('woff2');font-weight:500 600;font-display:swap}
@font-face{font-family:Roboto;src:url('assets/fonts/roboto-latin-700-normal.woff2') format('woff2');font-weight:700 900;font-display:swap}
@font-face{font-family:'Noto Sans Thai';src:url('assets/fonts/noto-sans-thai-thai-400-normal.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Noto Sans Thai';src:url('assets/fonts/noto-sans-thai-thai-500-normal.woff2') format('woff2');font-weight:500 900;font-display:swap}
@font-face{font-family:'Roboto Mono';src:url('assets/fonts/roboto-mono-latin-500-normal.woff2') format('woff2');font-weight:500;font-display:swap}
:root{color-scheme:dark;--background:#121212;--surface:#1e1e1e;--surface-raised:#252525;--text:rgba(255,255,255,.87);--muted:rgba(255,255,255,.60);--primary:#bb86fc;--on-primary:#000;--secondary:#03dac6;--comparison:#03dac6;--border:#454545;--subtle-border:#333;--error:#cf6679;--shadow:0 2px 5px #0004;--mix:#c7c7c7;--rb-background:var(--background);--rb-surface:var(--surface);--rb-text:var(--text);--rb-muted:var(--muted);--rb-primary:var(--primary);--rb-on-primary:var(--on-primary);--rb-secondary:var(--secondary);--rb-border:var(--border);--rb-focus:var(--primary)}
html[data-theme=light]{color-scheme:light;--background:#fff;--surface:#fff;--surface-raised:#f7f7f7;--text:rgba(0,0,0,.87);--muted:rgba(0,0,0,.60);--primary:#6200ee;--on-primary:#fff;--secondary:#03dac6;--comparison:#00796e;--border:#aaa;--subtle-border:#e1e1e1;--error:#b00020;--shadow:0 2px 8px #0000000d;--mix:#646464}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--background);color:var(--text);font-family:Roboto,'Noto Sans Thai',sans-serif;font-size:16px;line-height:1.7}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:var(--primary);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--primary);outline-offset:4px}button,input,select{color:var(--text)}button{border:1px solid var(--border);background:transparent;min-height:48px;padding:10px 16px;border-radius:6px}button:hover{background:var(--surface-raised)}button:active{transform:translateY(1px)}svg{display:block}button svg{width:20px;height:20px}h1,h2,h3,h4{font-weight:500;line-height:1.3;letter-spacing:-.02em}h1{font-size:clamp(34px,3.9vw,50px);margin:16px 0 24px}h2{font-size:29px;margin:48px 0 18px}h3{font-size:21px;margin:28px 0 12px}p{margin:0 0 20px}strong{font-weight:700}ul,ol{padding-left:24px}li{margin:8px 0}hr{border:0;border-top:1px solid var(--subtle-border);margin:40px 0}.muted{color:var(--muted)}.small{font-size:13px;line-height:1.65}.eyebrow{font-size:11px;font-weight:500;letter-spacing:.14em;line-height:1.6;color:var(--muted);margin:0 0 14px}.pill{font-size:11px;letter-spacing:.03em;padding:4px 10px;border:1px solid var(--border);border-radius:99px;white-space:nowrap;align-self:center}.button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;gap:20px;padding:10px 17px;border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:14px;font-weight:500;text-decoration:none;background:var(--surface);line-height:1.5;box-shadow:var(--shadow)}.button:hover{text-decoration:none;background:var(--surface-raised)}.button.primary{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.button.primary:hover{filter:brightness(1.08)}.button:active{box-shadow:none;transform:translateY(1px)}.text-link{font-size:14px;font-weight:500;text-decoration:none;min-height:48px;display:inline-flex;align-items:center;gap:16px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:20px;background:var(--primary);color:var(--on-primary);padding:12px 20px;z-index:200}.skip-link:focus{top:12px}
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16px}.equation{position:relative;margin:25px 0;overflow:auto;padding:16px;background:var(--surface);border:1px solid var(--subtle-border);border-radius:6px}.katex{position:relative;font-size:1.1em!important}.katex .katex-mathml{overflow:hidden;clip-path:inset(50%)}.katex-display{margin:0!important}.tool-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 42px}.tool-tabs a{font-size:13px;min-height:48px;display:flex;align-items:center;padding:8px 16px;border:1px solid var(--border);border-radius:6px;text-decoration:none;color:var(--text)}.tool-tabs a:hover{border-color:var(--primary)}.lab-section{border-top:1px solid var(--subtle-border);margin-top:45px;padding-top:2px}.lab-section>h2{margin-top:29px}.lab-section>p{max-width:900px}.lab-card{border:1px solid var(--subtle-border);border-radius:10px;background:var(--surface);margin:28px 0 33px;overflow:hidden;box-shadow:var(--shadow)}.lab-layout{display:grid;grid-template-columns:245px minmax(0,1fr)}.lab-controls{padding:25px 22px;border-right:1px solid var(--subtle-border);background:var(--surface)}.lab-controls label{display:block;font-size:13px;font-weight:500}.lab-controls select{width:100%;min-height:48px;border:1px solid var(--border);background:var(--background);border-radius:5px;padding:8px 9px;font-size:13px;margin:10px 0 14px}.lab-controls>.small{font-size:12px;line-height:1.85}.range-control{margin:27px 0}.range-control label{display:flex;justify-content:space-between;gap:12px;font-size:13px}.range-control output{color:var(--primary);font-variant-numeric:tabular-nums}.range-control input{display:block;width:100%;height:48px;margin:3px 0;accent-color:var(--primary)}.range-bounds{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-top:-6px}.allocation-snapshot{border-top:1px solid var(--subtle-border);padding-top:22px;margin:20px 0 26px}.allocation-snapshot>.small{font-size:10px;display:block}.allocation-snapshot 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svg{width:100%;height:auto;overflow:visible}.chart-unit{fill:var(--muted);font:10px Roboto,sans-serif}.axis{fill:var(--muted);font:11px Roboto,sans-serif}.gridline{stroke:var(--subtle-border);stroke-width:1}.line-cppi{stroke:var(--primary);border-color:var(--primary);color:var(--primary)}.line-benchmark{stroke:var(--comparison);border-color:var(--comparison);color:var(--comparison)}.line-mix{stroke:var(--mix);border-color:var(--mix);color:var(--mix)}.line-floor{stroke:var(--muted);border-color:var(--muted);color:var(--muted)}.chart-shell circle{fill:var(--surface)}.crosshair{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 3}.chart-legend{display:flex;flex-wrap:wrap;gap:6px 17px;font-size:10px;color:var(--muted);margin:12px 0 5px}.chart-legend span{display:flex;align-items:center;gap:6px}.chart-legend i{width:17px;border-top-width:2px}.chart-readout{font-size:10px;min-height:36px;margin:10px 0 13px}.result-insight{background:var(--surface-raised);padding:15px 18px;border:1px solid var(--border);border-radius:6px;margin:18px 0}.result-insight strong{font-size:14px;font-weight:500}.result-insight.breached strong{color:var(--error);font-size:19px;font-weight:700}.result-insight p{font-size:12px;color:var(--muted);margin:5px 0 0;line-height:1.8}.lab-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.lab-actions .button{font-size:12px}.lab-actions+p{font-size:10px;margin:10px 0 0}.data-details{padding:15px 24px;border-top:1px solid var(--subtle-border);font-size:13px}.data-details summary,.compact-data summary{cursor:pointer;min-height:48px;display:list-item;align-content:center}.data-details .table-scroll{margin-top:12px}.data-details table{font-size:12px;font-variant-numeric:tabular-nums}.data-details th,.data-details td{min-width:95px;padding:12px 14px}.data-details>.small{font-size:11px}.benchmark-summary{margin-top:15px;color:var(--muted);font-size:12px}.saved-runs{border-top:1px solid var(--subtle-border);padding:20px 24px 22px}.saved-runs h3{margin:0 0 11px;font-size:17px}.saved-runs h3>span{float:right}.saved-runs p{margin:0}.worked-equation{font-size:22px;font-family:'Roboto Mono',monospace;line-height:1.8;padding:20px 0;color:var(--primary)}.put-card .lab-controls{padding-top:30px}.put-card .data-details{padding:10px 0 0;border-top:0}.put-card .metrics-row strong{font-size:26px}
dialog{color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:12px;width:min(620px,calc(100% - 32px));max-height:80vh;padding:24px;box-shadow:0 20px 80px #0007}dialog::backdrop{background:#0009}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:15px}.dialog-heading h2{margin:0;font-size:25px}.dialog-heading button{padding:10px;min-width:48px}.dialog-heading+label{font-size:12px;color:var(--muted)}#search-input{width:100%;min-height:50px;background:var(--background);border:1px solid var(--border);border-radius:6px;padding:12px;margin-top:8px}#search-status{margin:13px 0}#search-results a{display:block;color:var(--text);text-decoration:none;padding:12px;border-bottom:1px solid var(--subtle-border)}#search-results a:hover{background:var(--surface-raised)}#search-results strong{display:block;font-size:15px;font-weight:500}#search-results span{display:block;font-size:11px;color:var(--muted)}
/* Book reading direction, matched to the owner's Binomial Model reference. */
:root{--bg:var(--background);--grid:var(--subtle-border);--elevated:var(--surface-raised)}
html[data-theme=light]{--surface:#f7f7f7;--surface-raised:#eee;--muted:rgba(0,0,0,.67);--border:#bbb;--subtle-border:#ddd}
html[data-theme=dark]{--muted:rgba(255,255,255,.68);--border:#4b4b4b;--subtle-border:#393939}
.book{font-size:17px;line-height:1.9;-webkit-font-smoothing:antialiased}
.book h2{font-size:27px;line-height:1.55;margin:0 0 28px;letter-spacing:-.02em;font-weight:500}
.book h3{font-size:21px;line-height:1.6;margin:24px 0 12px;font-weight:500}
.book h4{font-size:18px;font-weight:500;line-height:1.6;margin:16px 0}
.book strong{font-weight:500}.book p{overflow-wrap:break-word}.book-main>p,.book-main section>p{max-width:790px;margin:20px 0}
.book-main>section{padding-top:44px;margin-top:32px;border-top:1px solid var(--grid)}
.book-main ul,.book-main ol{padding-left:24px}.book-main li{margin:10px 0}.book-main .lead{line-height:1.7}
.book .reading-note{background:var(--surface);padding:24px 28px;margin:32px 0;border-radius:6px;max-width:760px}
.book .reading-note p{margin:8px 0 0;font-size:16px}.book .reading-note strong{font-size:17px}
.book .equation.math-display{position:relative;background:transparent;border:0;padding:18px 10px;margin:24px 0;font-size:18px;text-align:center;overflow-x:auto;max-width:100%}
.book .katex{position:relative;font-size:1.12em!important}.book .katex-mathml{overflow:hidden;clip-path:inset(50%)}
.book .katex-display{margin:.5em 0!important}.book .table-scroll{border:0;border-radius:0;margin:24px 0}
.book table{font-size:15px;line-height:1.7;max-width:790px;font-variant-numeric:tabular-nums}
.book th,.book td{min-width:100px;background:transparent;padding:14px 12px;border-bottom:1px solid var(--grid);vertical-align:top}
.book thead th{font-size:13px;color:var(--muted);font-weight:500;border-bottom:1px solid var(--border)}
.book .table-scroll table{margin:0}.book .table-scroll:focus-visible{outline-offset:2px}
.book summary{min-height:48px;cursor:pointer}.book-main details:not(.page-contents){margin:24px 0;padding:0;border-block:1px solid var(--grid)}
.book-main details:not(.page-contents)>summary{font-size:15px;font-weight:500;padding:14px 0}.book-main details p{font-size:15px}
.book .sources p{font-size:14px;color:var(--muted);line-height:1.9}.book .figure-caption,.book .noscript-note{font-size:13px;color:var(--muted)}
.book .noscript-note{padding:16px;background:var(--surface)}
.book .welcome-main h2{margin:48px 0 18px;font-size:24px}.book .welcome-main .reading-entry{background:var(--surface);padding:24px 28px;margin:24px 0 36px;border-radius:6px}
.book .welcome-main .reading-entry h3{margin:8px 0 12px}.book .welcome-main .welcome-lead{font-size:26px;line-height:1.6}
.book .lab-card{border:1px solid var(--border);border-radius:6px;background:var(--bg);margin:36px 0 40px;box-shadow:none;overflow:hidden}
.book .lab-layout{display:block}.book .lab-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 24px;padding:24px 28px;border:0;background:var(--bg)}
.book .lab-controls>.eyebrow,.book .lab-controls>p,.book .lab-controls>.scenario-control{grid-column:1/-1}
.book .lab-controls>label{grid-column:1/-1}.book .lab-controls>select{grid-column:1/-1;margin-top:-10px;max-width:370px}
.book .lab-controls>p.small{margin:0;font-size:13px;line-height:1.8}.book .range-control{margin:8px 0 12px}
.book .range-control label{font-size:14px}.book .allocation-snapshot{border:0;margin:8px 0 12px;padding:0}
.book .allocation-snapshot strong{font-size:28px;margin:3px 0}.book .allocation-snapshot>.small{font-size:11px}
.book .lab-controls>.button{grid-column:1/-1;width:auto;justify-self:start;padding:8px 12px;border:0;box-shadow:none;font-size:12px;min-height:48px}
.book .lab-results{padding:24px 28px;border-top:1px solid var(--grid)}.book .result-top h3{font-size:22px;margin:0}
.book .result-top .eyebrow{font-size:11px}.book .metrics-row{border-bottom:1px solid var(--grid);padding-bottom:22px;gap:22px}
.book .metrics-row>div>span{font-size:13px}.book .metrics-row strong{font-size:30px}.book .metrics-row small{font-size:12px}
.book .chart-unit{font-size:11px}.book .axis{font-size:12px}.book .chart-legend{font-size:12px;gap:8px 20px}
.book .chart-readout{font-size:12px;line-height:1.8}.book .result-insight{border:0;border-radius:4px;padding:18px 22px;background:var(--surface)}
.book .result-insight p{font-size:13px;line-height:1.85;margin:8px 0 0}.book .result-insight strong{font-size:17px}.book .result-insight.breached strong{font-size:19px;font-weight:700}
.book .lab-actions .button{font-size:13px;box-shadow:none}.book .lab-actions+p{font-size:12px}
.book .data-details{padding:12px 28px!important;margin:0!important;border-bottom:0!important}.book .data-details th,.book .data-details td{min-width:90px;font-size:12px}
.book .saved-runs{padding:24px 28px}.book .saved-runs h3{font-size:18px}.book .saved-runs p{font-size:13px}.book .rb-stepper{margin:30px 0;border-radius:6px}
.book .rb-step-panel{padding:24px 28px}.book .worked-equation{font-size:21px}.book .rb-step-panel h3{margin-top:0}
.book .put-card .lab-controls{grid-template-columns:repeat(3,minmax(0,1fr))}.book .put-card .lab-controls>.small{grid-column:1/-1}
.book .book-sidebar-footer a{line-height:1.7}.book .book-link.current{background:var(--surface)}
.book pre{border:1px solid var(--grid);padding:24px;background:var(--surface);border-radius:6px;overflow:auto;font-size:13px;line-height:1.75}.book code{font-family:'Roboto Mono',monospace;font-size:.88em}
.book .download-panel{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.book .glossary-term[hidden]{display:none}
.book .glossary-search label{font-size:15px}.book #glossary-query{color:var(--text);background:var(--bg)}
@media(max-width:800px){
  .book{font-size:16px;line-height:1.9}.book-main>section{padding-top:32px;margin-top:28px}.book h2{font-size:24px}.book h3{font-size:19px}
  .book .reading-note{padding:20px}.book .reading-note p{font-size:15px}.book .equation.math-display{font-size:15px;padding:16px 2px}
  .book .table-scroll th,.book .table-scroll td{font-size:13px;padding:12px 9px}.book .lab-controls,.book .put-card .lab-controls{grid-template-columns:1fr;gap:8px;padding:20px 16px}
  .book .lab-controls>.button{grid-column:auto}.book .lab-controls>select{max-width:none}.book .lab-results{padding:22px 16px}
  .book .metrics-row{grid-template-columns:1fr;gap:16px}.book .metrics-row>div{display:grid;grid-template-columns:1fr auto;align-items:center;gap:0 8px}
  .book .metrics-row strong{font-size:28px;margin:0}.book .metrics-row small{grid-column:1/-1;font-size:11px}.book .metrics-row>div>span{font-size:12px}
  .book .chart-legend{font-size:11px;gap:7px 15px}.book .chart-unit,.book .axis{font-size:10px}.book .chart-readout{font-size:11px}
  .book .result-insight{padding:16px}.book .result-insight p{font-size:12px}.book .result-insight strong{font-size:16px}.book .result-insight.breached strong{font-size:19px}
  .book .lab-actions .button{font-size:12px}.book .data-details{padding:10px 16px!important}.book .saved-runs{padding:20px 16px}
  .book .rb-step-panel{padding:20px 16px}.book .worked-equation{font-size:18px}.book .lab-card{margin:30px 0}
  .book .welcome-main .reading-entry{padding:22px}.book .book-cover{max-width:252px}.book-main .glossary-term{scroll-margin-top:88px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{
  html{--bg:#fff!important;--background:#fff!important;--surface:#fff!important;--surface-raised:#eee!important;--text:#111!important;--muted:#555!important;--border:#aaa!important;--grid:#ddd!important;--primary:#6200ee!important;--comparison:#00796b!important;--mix:#555!important;color-scheme:light!important}
  .book{font-size:11pt;line-height:1.75}.book h2{font-size:20pt;break-after:avoid}.book h3{font-size:15pt}.book .lab-controls,.book .lab-actions,.book .rb-step-indicators,.book .rb-step-footer,.book .saved-runs,.book .chart-readout,.book .glossary-search{display:none!important}
  .book .lab-card{box-shadow:none;margin:20px 0}.book .lab-results{border:0}.book .chart-shell{break-inside:avoid}.book .metrics-row{grid-template-columns:repeat(3,1fr)}
  .book .glossary-term[hidden]{display:block}.book .reading-note{break-inside:avoid}.book .skip-link{display:none}
}