@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(fonts/source-serif-4-normal-latin-ext.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(fonts/source-serif-4-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+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:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(fonts/source-serif-4-italic-latin-ext.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(fonts/source-serif-4-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+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --bg:#f6f1ec;--paper:#fffaf5;--ink:#1d1a1f;--mute:#4f4852;--line:#d9cfc6;
  --acc:#8e2744;--acc-soft:#f3dde3;--teal:#1b5a5f;--teal-soft:#d6e9e8;--warn:#7a4e00;--warn-soft:#f6e6c8;
  --axis:#b9aca2;--focus:#0b5cad;color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#141214;--paper:#1f1b20;--ink:#f3ede8;--mute:#c4bab4;--line:#3e3640;
  --acc:#f39ab2;--acc-soft:#4a2230;--teal:#86cfcd;--teal-soft:#1c3638;--warn:#f0c877;--warn-soft:#3d3018;
  --axis:#6d6168;--focus:#8cc4ff;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#141214;--paper:#1f1b20;--ink:#f3ede8;--mute:#c4bab4;--line:#3e3640;
  --acc:#f39ab2;--acc-soft:#4a2230;--teal:#86cfcd;--teal-soft:#1c3638;--warn:#f0c877;--warn-soft:#3d3018;
  --axis:#6d6168;--focus:#8cc4ff;color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.125rem/1.62 "Source Serif 4",Georgia,serif}
@media (min-width:1200px){body{font-size:1.1875rem}}
a{color:var(--acc);text-underline-offset:.15em}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--paper);padding:.5rem 1rem;z-index:30}
.skip:focus{left:8px;top:8px}
[hidden]{display:none!important}

.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:.9rem;height:48px;padding:0 16px;background:var(--bg);border-bottom:1px solid var(--line);font:500 .9rem/1 system-ui,-apple-system,"Segoe UI",sans-serif;white-space:nowrap}
.topbar .home{color:var(--ink);font-weight:700;text-decoration:none}
.topnav{display:flex;gap:1rem;overflow-x:auto;scrollbar-width:none;min-width:0}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--mute);text-decoration:none}
.topnav a:hover{color:var(--ink)}
.spacer{flex:1}
.chip{color:var(--ink);text-decoration:none;border:1px solid var(--line);border-radius:99px;padding:.3rem .7rem;font-size:.8rem;min-height:36px;display:inline-flex;align-items:center}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.icon-btn svg{display:block}
@media (max-width:620px){.topnav{display:none}}

.rail{position:fixed;right:14px;top:50%;transform:translateY(-50%);display:none;flex-direction:column;gap:.35rem;z-index:10;font:500 .78rem/1.2 system-ui,sans-serif}
@media (min-width:1320px){.rail{display:flex}}
.rail a{display:flex;align-items:center;justify-content:flex-end;gap:.5rem;color:var(--mute);text-decoration:none;min-height:24px}
.rail a span{opacity:0;transition:opacity .2s;position:absolute;right:22px;white-space:nowrap}
.rail:hover a span,.rail a.on span,.rail a:focus-visible span{opacity:1}
.rail i{width:9px;height:9px;border-radius:50%;border:1.5px solid var(--mute)}
.rail a.on{color:var(--ink)}.rail a.on i{background:var(--acc);border-color:var(--acc)}

main{padding:0 16px}
article{max-width:1040px;margin:0 auto}
section,header.hero{scroll-margin-top:60px}
.hero{max-width:760px;margin:0 auto;padding:3.2rem 0 1.6rem}
.hero.small{padding-top:2.4rem}
.eyebrow{font:600 .8rem/1.2 system-ui,sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--acc);margin:0 0 .9rem}
h1{font-size:clamp(2rem,5.4vw,3.35rem);line-height:1.08;letter-spacing:-.01em;margin:0 0 1.1rem;font-weight:650;text-wrap:balance}
.hero.small h1{font-size:clamp(1.8rem,4.6vw,2.7rem)}
.deck{font-size:1.2rem;line-height:1.55;color:var(--ink);margin:0 0 1rem}
.alert{border-left:4px solid var(--acc);background:var(--acc-soft);padding:.8rem 1rem;border-radius:0 8px 8px 0;font-size:1rem;margin:1.4rem 0 0}
.block{max-width:720px;margin:0 auto;padding:2.8rem 0 1.4rem;border-top:1px solid var(--line)}
.block.screen{max-width:1040px}
h2{font-size:clamp(1.5rem,3.4vw,2rem);line-height:1.18;margin:0 0 1rem;font-weight:650;text-wrap:balance}
h2 .anchor{color:inherit;text-decoration:none}
h3{font-size:1.2rem;line-height:1.3;margin:1.6rem 0 .5rem}
.lead{color:var(--mute);margin-top:-.4rem}
.more{font-weight:600}
.notes{padding-left:1.1rem}.notes li{margin:.45rem 0}

/* calculator */
.calc,.picker{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:1.2rem}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem 1.2rem;align-items:start}
.field{display:flex;flex-direction:column;gap:.35rem;border:0;margin:0;padding:0;min-width:0;font:500 .95rem/1.3 system-ui,sans-serif}
.field legend,.field>span,.picker legend{font:600 .85rem/1.3 system-ui,sans-serif;color:var(--mute);padding:0;margin-bottom:.35rem}
select{font:inherit;font-size:1rem;min-height:44px;padding:.4rem .6rem;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);max-width:100%}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip-radio{position:relative}
.chip-radio input,.res-opt input{position:absolute;opacity:0;width:1px;height:1px}
.chip-radio span{display:inline-flex;align-items:center;min-height:44px;padding:.35rem .8rem;border:1px solid var(--line);border-radius:99px;cursor:pointer;background:var(--bg)}
.chip-radio input:checked+span{background:var(--teal);border-color:var(--teal);color:var(--paper)}
.chip-radio input:focus-visible+span,.res-opt input:focus-visible+span{outline:3px solid var(--focus);outline-offset:2px}
.example{font:500 .9rem/1.4 system-ui,sans-serif;color:var(--mute);margin:1rem 0 .4rem}
.result{font-size:1.25rem;line-height:1.5;font-weight:600;margin:.4rem 0 1rem}
.life{width:100%;min-height:92px;overflow:hidden}
.life svg{display:block;width:100%;height:auto}
.axis{stroke:var(--axis);stroke-width:3}
.past{stroke:var(--mute);stroke-width:3}
.tick{stroke:var(--axis);stroke-width:1.5}
.tick-l{fill:var(--mute);font:500 13px system-ui,sans-serif}
.now{stroke:var(--ink);stroke-width:1.5;stroke-dasharray:3 3}
.now-l{fill:var(--ink);font:700 12px system-ui,sans-serif}
.pt{stroke-width:2.5}
.pt.missed{fill:var(--paper);stroke:var(--acc)}
.pt.due{fill:var(--acc);stroke:var(--acc)}
.pt.future{fill:var(--paper);stroke:var(--teal)}
.pt.done{fill:var(--teal);stroke:var(--teal)}
.legend{list-style:none;padding:0;margin:.3rem 0 1rem;display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;font:500 .85rem/1.3 system-ui,sans-serif;color:var(--mute)}
.legend li{display:flex;align-items:center;gap:.4rem}
.legend i{display:inline-block;width:12px;height:12px;border-radius:50%;border:2.5px solid}
.lg-due i{background:var(--acc);border-color:var(--acc)}
.lg-missed i{border-color:var(--acc);background:var(--paper)}
.lg-done i{background:var(--teal);border-color:var(--teal);border-radius:2px}
.lg-future i{border-color:var(--teal);background:var(--paper)}
.where{padding-left:1.1rem}.where li{margin:.45rem 0}

.res-opt{display:block;margin:.35rem 0}
.res-opt span{display:block;padding:.6rem .9rem;border:1px solid var(--line);border-radius:10px;cursor:pointer;background:var(--bg);min-height:44px}
.res-opt input:checked+span{border-color:var(--teal);box-shadow:inset 4px 0 0 var(--teal);font-weight:600}
.picker fieldset{border:0;margin:0;padding:0}

/* tables, flow, bars */
.table-wrap{overflow-x:auto;margin:1.2rem 0}
table.sched{border-collapse:collapse;width:100%;font:400 .98rem/1.4 system-ui,sans-serif}
.sched caption{text-align:left;color:var(--mute);font-size:.85rem;padding-bottom:.5rem}
.sched th,.sched td{border-bottom:1px solid var(--line);padding:.55rem .5rem;text-align:left;vertical-align:top}
.sched thead th{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--mute)}
.flow{margin:1.4rem 0}
.flow ol{list-style:none;margin:0;padding:0}
.flow ol ol{margin-left:1.1rem;padding-left:1rem;border-left:2px solid var(--line)}
.flow li{margin:.5rem 0}
.flow .box{display:block;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:.5rem .8rem;font:500 .95rem/1.35 system-ui,sans-serif}
.flow .box.strong{font-weight:700}
.flow .box.sub{margin-top:.3rem;color:var(--mute);font-size:.88rem}
.flow .tag{display:inline-block;font:700 .75rem/1 system-ui,sans-serif;text-transform:uppercase;letter-spacing:.06em;padding:.3rem .5rem;border-radius:6px;margin:.2rem 0 .3rem}
.tag.ok{background:var(--teal-soft);color:var(--teal)}
.tag.warn{background:var(--warn-soft);color:var(--warn)}
.tag.bad{background:var(--acc-soft);color:var(--acc)}
figcaption{font:400 .85rem/1.45 system-ui,sans-serif;color:var(--mute);margin-top:.6rem}
.bars ol{list-style:none;padding:0;margin:1.2rem 0 0}
.bar-row{display:grid;grid-template-columns:minmax(8rem,12rem) 1fr 3rem;gap:.8rem;align-items:center;margin:.6rem 0;font:500 .95rem/1.3 system-ui,sans-serif}
.bar{width:100%;height:22px;display:block}
.bar .track{fill:var(--line);opacity:.45}
.bar-row.ro .fill{fill:var(--acc)}.bar-row.eu .fill{fill:var(--mute)}.bar-row.se .fill{fill:var(--teal)}
.bar-val{font-weight:700;font-variant-numeric:tabular-nums;text-align:right}
@media (max-width:520px){.bar-row{grid-template-columns:1fr 3rem}.bar-row .bar{grid-column:1/-1;grid-row:2}}
.onesample{display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:center;margin:1.2rem 0}
.vial{width:84px;height:120px;border:3px solid var(--teal);border-radius:12px 12px 26px 26px;display:grid;place-items:end center;padding:.5rem;background:linear-gradient(to top,var(--teal-soft) 55%,transparent 55%)}
.vial span{font:700 .7rem/1.2 system-ui,sans-serif;text-align:center;color:var(--teal)}
.onesample ol{margin:0;padding:0;list-style:none}
.onesample li{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:.6rem .9rem;margin:.5rem 0;display:flex;flex-direction:column;font:400 .95rem/1.35 system-ui,sans-serif}
.onesample li span{color:var(--mute)}
.doors{padding-left:1.3rem}
.doors>li{margin:1rem 0}
.doors h3{margin:.2rem 0 .4rem}
.steps li{margin:.5rem 0}

.faq{border-bottom:1px solid var(--line);padding:.2rem 0}
.faq summary{cursor:pointer;font-weight:650;padding:.7rem 0;min-height:44px;list-style-position:outside}
.faq p{margin:0 0 .9rem}
.srcs{font-size:.95rem;padding-left:1.1rem}.srcs li{margin:.4rem 0;overflow-wrap:anywhere}
.method,.checked{font-size:.98rem}
.checked{font-weight:600}
.rel{padding-left:1.1rem}
.foot{max-width:720px;margin:2rem auto 0;padding:1.4rem 16px 3rem;border-top:1px solid var(--line);font:400 .9rem/1.5 system-ui,sans-serif;color:var(--mute)}
.foot a{color:var(--mute)}
.nf main{max-width:640px;margin:0 auto;padding:4rem 16px}