:root{color-scheme:light;--ink:#0d2431;--muted:#4d6570;--paper:#f6f8f5;--line:#d5dfd9;--green:#216448;--mint:#bdf2cf;--navy:#091d2a;--amber:#f6dfaa}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;color:var(--ink);background:var(--paper);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--green);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button,summary{cursor:pointer}button{font:inherit}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #18755a;outline-offset:4px}h1,h2,h3,h4{line-height:1.13;letter-spacing:-.035em}h1,h2,h3,h4,p,summary,.plan a{overflow-wrap:anywhere;hyphens:auto}h1{font-size:clamp(40px,5.5vw,78px);max-width:13ch;margin:28px 0}h2{font-size:clamp(30px,3.4vw,46px);margin:12px 0 22px}h3{font-size:24px}h4{font-size:19px}.mono,.eyebrow{font:12px/1.6 ui-monospace,SFMono-Regular,monospace;letter-spacing:.08em;text-transform:uppercase}.skip{position:absolute;left:20px;top:-80px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}
aside{position:fixed;width:254px;height:100vh;background:var(--navy);color:#fff;padding:30px 23px;overflow:auto}aside .brand{font-weight:800;font-size:20px;letter-spacing:-.04em}.brand span{color:var(--mint)}aside .subtitle{color:#b4c9c7;font-size:13px;margin:2px 0 35px}nav{display:grid;gap:7px}nav a{display:block;color:#d4e1e3;text-decoration:none;font-size:14px;line-height:1.45;padding:7px 0}nav a:hover{color:var(--mint)}nav .navend{border-top:1px solid #38505d;padding-top:16px;margin-top:12px}aside footer{color:#a8bbc2;font-size:12px;margin-top:40px}main{margin-left:254px;padding:54px clamp(24px,5vw,90px) 90px;max-width:1630px}.draft{display:inline-block;background:var(--amber);padding:6px 12px;border-radius:3px;font-size:12px;font-weight:700}.lead{font-size:21px;max-width:65ch;color:var(--muted)}.meta{color:var(--muted);font-size:13px}.hero{border-bottom:1px solid var(--line);padding-bottom:40px}.facts{display:flex;gap:40px;margin:34px 0 22px;flex-wrap:wrap}.fact strong{font-size:38px;display:block;line-height:1.05}.fact span{font-size:13px;color:var(--muted)}.tools{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.tools button,.tools a{background:var(--ink);color:white;padding:10px 15px;border:0;border-radius:3px;text-decoration:none;font-size:14px}.tools .secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}.intro{max-width:77ch}.plan{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;margin:26px 0}.plan a{background:#e1ece4;padding:14px 10px;text-decoration:none;color:var(--ink);line-height:1.3;font-size:12px;border-top:4px solid var(--green)}.plan b{display:block;font-size:20px;margin-bottom:12px}.plan small{display:block;margin-top:8px}
.module,.section{padding:58px 0 10px;border-bottom:1px solid var(--line)}.module .goal{max-width:72ch;font-size:19px;color:var(--muted)}.unit{border-top:1px solid var(--line);margin:0}.unit>summary{padding:22px 0;list-style-position:outside;display:flex;gap:18px;align-items:baseline}.unit>summary::after{content:'+';margin-left:auto;color:var(--green);font-size:25px}.unit[open]>summary::after{content:'−'}.unit>summary .num{color:var(--muted);font:12px ui-monospace,monospace}.unit>summary strong{font-size:21px;line-height:1.3;letter-spacing:-.02em}.unitcontent{max-width:79ch;padding:0 0 32px 38px}.unitcontent p{margin-top:0}.example{background:white;border-left:3px solid #668e99;padding:18px 22px;margin:22px 0}.example .label,.action .label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;margin-bottom:6px}.action{padding:16px 20px;background:#e0eee4}.remember{font-size:22px;font-weight:650;letter-spacing:-.025em;color:var(--green);margin:25px 0!important}.error{font-size:15px;color:var(--muted)}.author{border:1px solid var(--line);border-radius:3px;padding:12px 15px;font-size:13px;margin-top:18px}.author summary{font-weight:650}.references{padding-left:18px;font-size:12px;line-height:1.55;overflow-wrap:anywhere}.references li{margin:9px 0}.references span{display:block;color:var(--muted)}.mini{border:1px solid var(--line);padding:18px;margin-top:20px}.mini details{font-size:15px}.mini summary{color:var(--green);font-weight:600}.question{padding:28px 0;border-top:1px solid var(--line);max-width:85ch}.question h3{font-size:23px}.options{list-style:none;padding:0}.options li{padding:10px 14px;border:1px solid var(--line);margin:6px 0;background:white}.answer{padding:16px 20px;background:#e4efe7;margin:20px 0}.answer summary{font-weight:650;color:var(--green)}.pill{font:11px/1.3 ui-monospace,monospace;background:#e2eae5;padding:5px 8px;display:inline-block;margin:0 4px 7px 0}.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:26px 0}.flow div{background:var(--navy);color:#dce9e7;padding:20px;font-size:15px}.flow b{display:block;color:var(--mint);margin-bottom:12px}.rules{padding-left:22px}.rules li{margin:15px 0}.rules strong{display:block}.review{border-left:3px solid #a56d18;padding:0 0 12px 20px;margin:28px 0;max-width:80ch}.review h3{font-size:21px}.table-wrap{max-width:100%;overflow:auto}table{border-collapse:collapse;min-width:650px;width:100%;font-size:13px}th,td{text-align:left;padding:12px;vertical-align:top;border-bottom:1px solid var(--line);overflow-wrap:anywhere}th{background:#e3ede5}td p{margin:0}.source{max-width:85ch;padding:25px 0;border-top:1px solid var(--line)}.source h3{font-size:21px}.source p{font-size:14px}.source a{overflow-wrap:anywhere}.cert{background:white;padding:32px;border:1px solid var(--line);max-width:80ch}.cert .brand{font-size:16px;font-weight:700;color:var(--green)}.cert p{font-size:15px}.end{font-size:13px;color:var(--muted);padding-top:40px}.fine{font-size:13px;color:var(--muted)}
@media(max-width:1000px){aside{width:210px;padding:24px 17px}main{margin-left:210px;padding:38px 28px}.plan{grid-template-columns:repeat(4,minmax(0,1fr))}.flow{grid-template-columns:1fr}}
@media(max-width:700px){aside{position:relative;width:100%;height:auto;padding:20px}aside .subtitle{margin-bottom:14px}aside nav{display:flex;gap:18px;overflow:auto}aside nav a{flex:0 0 auto;max-width:170px}nav .navend{border:0;margin:0;padding-top:7px}aside footer{display:none}main{margin:0;padding:30px 20px}.plan{grid-template-columns:repeat(2,minmax(0,1fr))}.facts{gap:24px}.fact strong{font-size:32px}.lead{font-size:18px}.unitcontent{padding-left:0}.unit>summary{gap:12px}.unit>summary strong{font-size:19px}.module,.section{padding-top:38px}.cert{padding:20px}h1{font-size:46px}.flow div{padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{aside,.tools,.skip{display:none}main{margin:0;padding:0;max-width:none}body{background:white;font-size:10pt;color:black}h1{font-size:32pt}h2{font-size:23pt}.module,.section{break-before:page}.hero{border:0}.unitcontent{max-width:none;padding-left:0}.unit>summary strong{font-size:15pt}.unit>summary::after{display:none}.unit,.question,.source{break-inside:auto}.author,.mini,.answer,.example,.action{break-inside:avoid}a{color:inherit}.table-wrap{overflow:visible}table{min-width:0;font-size:8pt}details>summary{list-style:none}.plan{grid-template-columns:repeat(4,minmax(0,1fr))}.flow{grid-template-columns:repeat(3,1fr)}.fact strong{font-size:24pt}.remember{font-size:14pt}}