@font-face{font-family:"Fraunces";font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/fraunces-normal-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Fraunces";font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/fraunces-normal-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Fraunces";font-style:italic;font-weight:100 900;font-display:swap;src:url(fonts/fraunces-italic-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Fraunces";font-style:italic;font-weight:100 900;font-display:swap;src:url(fonts/fraunces-italic-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexMono-400-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/IBMPlexMono-400-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Plex Mono";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/IBMPlexMono-600-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Mono";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/IBMPlexMono-600-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Plex Sans";font-style:normal;font-weight:500 600;font-display:swap;src:url(fonts/IBMPlexSans-latin.woff2) format("woff2");unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:"Plex Sans";font-style:normal;font-weight:500 600;font-display:swap;src:url(fonts/IBMPlexSans-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF}

:root{
  --bg:#f6f3ed;--bg2:#ece7dc;--card:#fffdf9;--ink:#141a33;--ink2:#2c3453;--muted:#414a6b;
  --line:#6e7899;--line-soft:#d9d3c5;--accent:#852608;--accent-ink:#ffffff;--cool:#164a82;
  --win:#c2410c;--lose:#2563a6;--none:#6b7494;--grid:#d9d3c5;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;--mono:"Plex Mono",ui-monospace,Menlo,monospace;--ui:"Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bar:3rem;color-scheme:light
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0d1226;--bg2:#121936;--card:#161e3d;--ink:#eef0f9;--ink2:#cfd5ea;--muted:#aab3d2;
  --line:#7080b4;--line-soft:#252e55;--accent:#ffb48f;--accent-ink:#1d0b02;--cool:#9fc4ff;
  --win:#ff8f63;--lose:#7db8ff;--none:#97a2c6;--grid:#252e55;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0d1226;--bg2:#121936;--card:#161e3d;--ink:#eef0f9;--ink2:#cfd5ea;--muted:#aab3d2;
  --line:#7080b4;--line-soft:#252e55;--accent:#ffb48f;--accent-ink:#1d0b02;--cool:#9fc4ff;
  --win:#ff8f63;--lose:#7db8ff;--none:#97a2c6;--grid:#252e55;color-scheme:dark}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.1rem/1.62 var(--serif);font-optical-sizing:auto;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:var(--accent);text-underline-offset:.16em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--card);padding:.5rem 1rem;z-index:80}
.skip:focus{left:8px;top:8px}
section{scroll-margin-top:calc(var(--bar) + 8px)}
h1,h2,h3{font-family:var(--serif);line-height:1.12;margin:0;text-wrap:balance;font-optical-sizing:auto}
button,select,input{font:inherit}
p{margin:0 0 1em}
.wrap{max-width:46rem;margin:0 auto;padding:0 max(16px,env(safe-area-inset-left))}
.wide{max-width:72rem}
.pad{padding-top:4rem}
.nf{font-size:2rem}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;height:var(--bar);display:flex;align-items:center;gap:.7rem;padding:0 max(16px,env(safe-area-inset-left));
  background:color-mix(in srgb,var(--bg) 98%,transparent);border-bottom:1px solid var(--line-soft);font:500 .92rem/1 var(--ui);letter-spacing:.005em}
.home{display:inline-flex;align-items:center;gap:.45rem;color:var(--ink);text-decoration:none;white-space:nowrap;font-weight:600;letter-spacing:.01em}
.home svg{color:var(--accent)}
.topnav{display:flex;gap:1rem;overflow-x:auto;scrollbar-width:none;min-width:0;flex:0 1 auto;margin-left:.6rem}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--ink2);text-decoration:none;white-space:nowrap;padding:.95rem .1rem}
.topnav a:hover{color:var(--accent)}
.spacer{flex:1}
.chip{display:inline-flex;align-items:center;min-height:32px;padding:0 .75rem;border:1px solid var(--line);border-radius:999px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.86rem}
.icon-btn{width:34px;height:34px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.progress span{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:var(--accent)}
.progress i{position:absolute;top:-9px;left:0;width:16px;height:16px;margin-left:-8px;will-change:transform;color:var(--accent)}
.progress i svg{display:block}
@media (max-width:1000px){.topnav{display:none}}
@media (pointer:coarse){.chip,.icon-btn{min-height:44px;min-width:44px}.icon-btn{width:44px;height:44px}}

/* hero: dark in both themes, the dots are the data */
.hero{position:relative;min-height:min(34rem,calc(100svh - var(--bar)));display:flex;overflow:hidden;background:#151b33;color:#fff3e4;isolation:isolate}
#hero-cv{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:-2}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(21,27,51,.92) 0%,rgba(21,27,51,.78) 46%,rgba(21,27,51,.2) 100%)}
.hero-in{width:100%;max-width:72rem;margin:0 auto;padding:clamp(1.8rem,6vh,4rem) max(16px,env(safe-area-inset-left)) clamp(1.2rem,4vh,2.2rem);display:flex;flex-direction:column;justify-content:center}
.kicker{align-self:flex-start;font:600 .78rem/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#ffd7bf;background:rgba(21,27,51,.8);padding:.3rem .6rem;border-radius:6px;margin:0 0 1rem}
.hero h1{font-weight:360;font-size:clamp(2rem,5.4vw,4rem);letter-spacing:-.02em;line-height:1.06;max-width:22ch;font-variation-settings:"opsz" 144}
.deck{font-size:clamp(1.05rem,2vw,1.32rem);line-height:1.45;max-width:38rem;margin:1.1rem 0 0;color:#ffeede;font-weight:380}
.cue-row{display:flex;flex-wrap:wrap;gap:.7rem 1rem;margin-top:1.5rem}
.cue-btn{display:inline-flex;align-items:center;gap:.6rem;min-height:52px;padding:.5rem 1.5rem;border-radius:999px;background:#ffb48f;color:#1d0b02;font:600 1rem/1 var(--mono);text-decoration:none;letter-spacing:.02em}
.cue-btn:hover{background:#ffc9ad}
.hero-tag{margin:1.1rem 0 0;font:500 .74rem/1.4 var(--mono);color:#e9e2d6;max-width:34rem}
.share-strip{background:var(--bg2);padding:.8rem 0;border-bottom:1px solid var(--line-soft)}
.share-strip .wrap-in{max-width:72rem;margin:0 auto;padding:0 max(16px,env(safe-area-inset-left))}

/* share */
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.share-label{font:500 .8rem/1 var(--mono);color:var(--muted);margin-right:.3rem}
.sh{width:40px;height:40px;display:inline-grid;place-items:center;border:1px solid var(--line-soft);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;text-decoration:none}
.sh:hover,.sh:focus-visible{color:var(--accent);border-color:var(--accent)}
@media (pointer:coarse){.sh{width:44px;height:44px}}
@media (max-width:700px){.share-label{display:none}}
.copied{margin:0;font:500 .78rem/1 var(--mono);color:var(--muted);min-height:1em}

/* bands */
.band{padding:clamp(2.4rem,6vw,4.4rem) 0}
.band.alt{background:var(--bg2)}
.band h2{font-weight:400;font-size:clamp(1.7rem,3.6vw,2.5rem);letter-spacing:-.012em;margin-bottom:1rem;max-width:30ch}
.band h2 a{color:inherit;text-decoration:none}
.band h2 a:hover{text-decoration:underline}
.lead{font-size:1.25rem;line-height:1.45;color:var(--ink2)}
.ev-h{font:600 1.05rem/1.3 var(--serif);margin:1.8rem 0 .5rem;letter-spacing:0}
.note{font:400 .9rem/1.45 var(--serif);color:var(--muted);margin:.3rem 0 1rem}
.plain{margin:0 0 1rem;padding-left:1.2rem}
.plain li{margin:.5rem 0}
.src{list-style:none;margin:0;padding:0}
.src li{margin:.45rem 0;word-break:break-word}
.card{background:var(--card);border:1px solid var(--line-soft);border-radius:14px;padding:1.1rem 1.3rem}

/* answer tiles */
.tiles{list-style:none;margin:1.6rem 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.tiles li{background:var(--card);border:1px solid var(--line-soft);border-radius:14px;padding:1rem 1.1rem;display:flex;flex-direction:column;gap:.35rem}
.tile-n{font:340 clamp(2rem,5vw,3rem)/1 var(--serif);color:var(--accent);font-variation-settings:"opsz" 144}
.tile-l{font:400 .88rem/1.35 var(--serif);color:var(--ink2)}
@media (max-width:640px){.tiles{grid-template-columns:1fr}}

/* tool */
.tool{display:grid;grid-template-columns:minmax(0,19rem) minmax(0,1fr);gap:1.4rem 1.8rem;margin-top:1.4rem;align-items:start}
.panel{display:flex;flex-direction:column;gap:.2rem}
.stage{min-width:0}
.readout{grid-column:1 / -1}
@media (max-width:900px){.tool{grid-template-columns:minmax(0,1fr)}.stage{order:1}.readout{order:2}.panel{order:3}}
fieldset.chips{border:0;margin:0 0 .9rem;padding:0;min-width:0}
fieldset.chips legend{font:600 .78rem/1.2 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:0;margin:0 0 .45rem}
.chip-row{display:flex;flex-wrap:wrap;gap:.4rem}
.chipl{position:relative;display:inline-flex}
.chipl input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.chipl span{display:inline-flex;align-items:center;min-height:38px;padding:.2rem .8rem;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink);font:500 .84rem/1.15 var(--mono)}
.chipl input:checked+span{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chipl input:focus-visible+span{outline:3px solid var(--accent);outline-offset:2px}
@media (pointer:coarse){.chipl span{min-height:44px}}
.ctl{margin:.4rem 0 .8rem}
.ctl label{display:block;font:600 .78rem/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem}
.ctl output{color:var(--ink);font-weight:600}
.yr-row{display:flex;gap:.6rem;align-items:center}
.yr-row input{flex:1;min-width:0;accent-color:var(--accent);height:30px}
.chk{display:flex;gap:.6rem;align-items:flex-start;font:500 .9rem/1.35 var(--serif);cursor:pointer;margin:.4rem 0 0}
.chk input{width:22px;height:22px;margin:.1rem 0 0;accent-color:var(--accent);flex:none}
.btns{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.6rem}
.ghost{min-height:40px;padding:.3rem .9rem;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);font:600 .82rem/1.1 var(--mono);cursor:pointer}
.ghost:hover{border-color:var(--accent);color:var(--accent)}
.ghost[data-on="true"]{border-color:var(--accent);color:var(--accent)}
@media (pointer:coarse){.ghost{min-height:44px}}
.stage-top{display:flex;gap:.8rem;align-items:center;justify-content:space-between;min-height:40px;margin-bottom:.4rem}
.ro-status{margin:0;font:600 .86rem/1.3 var(--mono);color:var(--ink2)}
.cvwrap{position:relative;background:var(--card);border:1px solid var(--line-soft);border-radius:14px;overflow:hidden}
#cv{display:block;width:100%;height:clamp(340px,52vw,560px);touch-action:manipulation}
.tip{position:absolute;pointer-events:none;max-width:16rem;padding:.45rem .65rem;border-radius:8px;background:var(--ink);color:var(--bg);font:500 .78rem/1.35 var(--mono);z-index:5;box-shadow:0 4px 18px rgba(0,0,0,.25)}
.legend{list-style:none;margin:.7rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.3rem 1.1rem;font:500 .78rem/1.3 var(--mono);color:var(--ink2)}
.legend li{display:flex;align-items:center;gap:.4rem}
.k{display:inline-block;width:11px;height:11px;border-radius:50%}
.k.win{background:var(--win)}.k.lose{background:var(--lose)}.k.none{background:var(--none);opacity:.7}
.k.line{width:16px;height:3px;border-radius:2px;background:var(--ink)}
.k.curve{width:16px;height:0;border-radius:0;border-top:2px dotted var(--ink2)}
.watch{margin:.8rem 0 0;font:400 .95rem/1.45 var(--serif);color:var(--ink2);max-width:46rem}
#read-body p{margin:0 0 .6rem}
#read-body .r-main{font-size:1.15rem}
.loading{margin:0;color:var(--muted)}
.reset-btn{white-space:nowrap}
.split>div{min-width:0}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.5rem 2rem;margin-top:1.8rem}
@media (max-width:900px){.split{grid-template-columns:minmax(0,1fr)}}

/* tables */
.tblwrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:12px;background:var(--card)}
.tbl{border-collapse:collapse;width:100%;font:400 .9rem/1.4 var(--serif)}
.tbl th,.tbl td{padding:.5rem .7rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
.tbl thead th{font:600 .74rem/1.2 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.tbl tbody th{font-weight:500}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:0}
.tbl.cl td,.tbl.cl th{padding:.8rem .9rem}
.refs{display:block;margin-top:.4rem;font:500 .8rem/1.4 var(--mono)}
.refs a{margin-right:.6rem;white-space:nowrap}
.cl tbody th{width:22%;font-weight:600}
@media (max-width:760px){.cl thead{display:none}.cl,.cl tbody,.cl tr,.cl th,.cl td{display:block;width:100%}.cl tr{padding:.6rem 0;border-bottom:1px solid var(--line-soft)}.cl td,.cl th{border:0;padding:.3rem .9rem}}

/* cumulative chart */
.cumfig{margin:1.4rem 0 1rem}
.cumfig figcaption{font:400 .95rem/1.45 var(--serif);color:var(--ink2);margin-top:.5rem;max-width:46rem}
svg.cum{width:100%;height:auto;display:block;background:var(--card);border:1px solid var(--line-soft);border-radius:14px}
svg.cum .grid{stroke:var(--grid);stroke-width:1}
svg.cum .zero{stroke:var(--ink2);stroke-width:1.2;stroke-dasharray:4 4}
svg.cum .tick,svg.cum .cnt,svg.cum .axl,svg.cum .adjl{fill:var(--ink2);font:500 11px var(--mono)}
svg.cum .cnt{fill:var(--muted);font-size:10px}
svg.cum .axl{font-weight:600}
svg.cum .whisk{stroke:var(--cool);stroke-width:2.2}
svg.cum .pt{fill:var(--cool);stroke:var(--card);stroke-width:1.5}
svg.cum .adj{fill:none;stroke:var(--win);stroke-width:2.2}
svg.cum .adjl{fill:var(--accent)}
.vals{margin-top:1rem}
.vals summary{cursor:pointer;font:600 .86rem/1.3 var(--mono);color:var(--accent);padding:.4rem 0;min-height:44px;display:flex;align-items:center}

pre.code{margin:.4rem 0 1rem;padding:.8rem 1rem;overflow-x:auto;background:var(--card);border:1px solid var(--line-soft);border-radius:10px;font:400 .88rem/1.55 var(--mono);color:var(--ink)}

/* footer */
.foot{padding:2rem max(16px,env(safe-area-inset-left)) 3rem;text-align:center;font:500 .85rem/1.6 var(--mono);color:var(--muted)}
.foot a{color:var(--ink2)}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media print{.topbar,.share-strip,.hero canvas,.panel,.btns{display:none}}