*{box-sizing:border-box}
:root{--paper:#f3f5f4;--white:#fff;--ink:#1c2730;--teal:#0d6b68;--amber:#d79a00;--rule:#a7b8b5;--soft:#e6eeeb;--muted:#46555b;--head:"Avenir Next Condensed","DIN Alternate","Roboto Condensed","Arial Narrow",sans-serif;--body:"Seravek","Gill Sans Nova","Segoe UI","Noto Sans",Helvetica,Arial,sans-serif;--mono:"SF Mono","Menlo","Consolas",monospace}
html{scroll-behavior:auto}
body{margin:0;background:var(--paper);color:var(--ink);font:1.15rem/1.7 var(--body);overflow-wrap:anywhere}
a{color:var(--teal);text-decoration-thickness:1px;text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:4px}
img{display:block;max-width:100%;height:auto}
svg{max-width:100%;height:auto}
.wrap{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.site-header{border-top:6px solid var(--teal);border-bottom:1px solid var(--rule);background-color:var(--soft);background-image:linear-gradient(#1c273009 1px,transparent 1px),linear-gradient(90deg,#1c273009 1px,transparent 1px);background-size:8px 8px}
.brand-row{display:flex;gap:16px;align-items:center;padding-block:25px 18px}
.brand{font:700 clamp(1.7rem,4.5vw,2.35rem)/1.05 var(--head);letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.brand-row img{width:52px;height:52px}
.tagline{margin:8px 0 0;font-size:.92rem;color:var(--muted);line-height:1.4}
.header-nav{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:19px;align-items:flex-start}
.header-nav details{min-width:0;max-width:100%;border:1px solid var(--rule);background:var(--paper);font-size:.89rem}
.header-nav summary{padding:8px 12px;cursor:pointer;font-weight:650;line-height:1.45}
.header-nav details[open]{border-color:var(--teal)}
.header-nav ul{padding:8px 16px 13px 28px;margin:0;max-width:330px;list-style:square}
.header-nav li{padding:3px 0;line-height:1.45}
.header-nav a{font-size:.92rem}
.jump{display:block;width:max-content;max-width:100%;font: .77rem/1.4 var(--mono);padding-top:8px}
main{padding-block:38px 58px}
.eyebrow{font:.77rem/1.6 var(--mono);letter-spacing:.11em;text-transform:uppercase;color:var(--muted);margin:0 0 13px;display:flex;gap:12px;align-items:center}
.field-tag{background:var(--amber);color:var(--ink);display:inline-grid;place-items:center;width:40px;height:40px;font:700 .94rem/1 var(--mono);letter-spacing:0}
h1,h2,h3{font-family:var(--head);font-weight:750;line-height:1.12;letter-spacing:-.015em;overflow-wrap:anywhere}
h1{font-size:clamp(2.25rem,4.6vw,3.7rem);margin:0 0 22px;max-width:24ch}
h2{font-size:1.85rem;margin:2.25em 0 .65em}
h3{font-size:1.42rem;margin:1.7em 0 .5em}
p{margin:.85em 0}
.opening{padding-bottom:32px;border-bottom:2px solid var(--teal);display:grid;gap:25px;align-items:end}
.lead{font-size:1.25rem;line-height:1.55;max-width:57ch;margin:0;color:var(--muted)}
.feature{margin:0}
.feature img{width:100%;aspect-ratio:3/2;object-fit:cover;border:1px solid var(--rule)}
.article-layout{display:grid;gap:30px;margin-top:32px}
.article-body{min-width:0;max-width:74ch}
.article-body>h2:first-child{margin-top:0}
.contents{align-self:start;border-top:1px solid var(--teal);padding-top:14px;font-size:.92rem}
.contents-title{font:.75rem/1.4 var(--mono);text-transform:uppercase;letter-spacing:.07em;margin:0 0 12px}
.contents ol{padding-left:20px;margin:0}
.contents li{padding:5px 0;line-height:1.45}
.spec{border:1px solid var(--rule);border-left:5px solid var(--amber);padding:18px 22px;background:var(--white);margin:0 0 32px}
.spec h2{font:700 .82rem/1.4 var(--mono);text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px}
.spec dl{margin:0;display:grid;gap:8px}
.spec dt{font-size:.92rem;font-weight:700;margin-top:6px}
.spec dd{margin:0;font-size:1.03rem}
table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:1rem;line-height:1.5;margin:28px 0}
caption{text-align:left;font:700 1.2rem/1.4 var(--head);padding-bottom:14px;color:var(--ink)}
th,td{vertical-align:top;text-align:left;padding:14px 12px;border-top:1px solid var(--rule);overflow-wrap:anywhere}
thead th{background:var(--soft);border-block:2px solid var(--teal);font:.78rem/1.45 var(--mono);font-weight:700}
tbody tr:nth-child(even){background:#eaf0ed}
th[scope="row"]{font-weight:750}
ul,ol{padding-left:1.35em}
li{margin:.5em 0}
.diagram{border-block:1px solid var(--rule);padding:24px 8px;margin:30px 0;color:var(--teal)}
.diagram svg{display:block;width:100%}
.diagram text{font-family:var(--mono);font-size:14px;fill:var(--ink)}
.hub{margin-top:45px;border-top:2px solid var(--teal);padding-top:25px}
.hub>h2{margin:0 0 22px}
.hub-grid{display:grid;gap:28px}
.hub-group{border-top:1px solid var(--rule);padding-top:15px;min-width:0}
.hub-group h3{font:.85rem/1.4 var(--mono);text-transform:uppercase;letter-spacing:.08em;margin:0 0 17px}
.hub-group ul{list-style:none;padding:0;margin:0}
.hub-group li{padding:10px 0;border-bottom:1px solid var(--rule);margin:0}
.hub-group a{font-weight:700;display:block;line-height:1.4}
.hub-group p{font-size:.97rem;line-height:1.5;margin:6px 0}
.independence-body{border-top:1px solid var(--teal);margin-top:35px;padding-top:20px;font-size:1rem;line-height:1.65}
.independence-body h2{font:.8rem/1.4 var(--mono);text-transform:uppercase;letter-spacing:.08em;margin:0 0 12px}
.independence-body p{margin:0}
.reading-entry{padding:16px 0;border-bottom:1px solid var(--rule);margin:0;line-height:1.65}
.reading-entry a{font-weight:650}
.site-footer{border-top:5px solid var(--teal);background:var(--soft);padding-block:34px}
.footer-top{font:700 1.4rem/1.25 var(--head);margin:0 0 28px}
.footer-index{display:grid;gap:25px}
.footer-group{min-width:0}
.footer-group h2{font:.78rem/1.4 var(--mono);letter-spacing:.07em;text-transform:uppercase;margin:0 0 15px}
.footer-group ul{list-style:none;padding:0;margin:0}
.footer-group li{font-size:.92rem;line-height:1.4;margin:9px 0}
.footer-group a{color:var(--ink)}
.notice{font-size:.94rem;line-height:1.7;border-top:1px solid var(--teal);padding-top:23px;margin:30px 0 0}
@media(min-width:800px){.opening{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:38px}.opening.text-only{grid-template-columns:1fr}.article-layout{grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:45px}.contents{position:sticky;top:22px}.hub-grid{grid-template-columns:1fr 1fr}.footer-index{grid-template-columns:repeat(3,minmax(0,1fr))}.spec dl{grid-template-columns:minmax(0,1fr) minmax(0,1.9fr);gap:10px 18px}.spec dt{margin:0}}
@media(min-width:1100px){.footer-index{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media(max-width:680px){.wrap{width:calc(100% - 32px)}body{font-size:1.08rem}.brand-row{align-items:flex-start;gap:12px}.brand-row img{width:40px;height:40px}.tagline{font-size:.86rem}.header-nav{gap:6px}.header-nav summary{padding:8px 9px}.opening{padding-bottom:25px}main{padding-top:28px}.contents{font-size:.9rem}.contents ol{columns:2;column-gap:22px}.contents li{break-inside:avoid}table,tbody,tr,td,th,caption{display:block;max-width:100%}table{position:relative}thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}tbody tr{border-top:2px solid var(--teal);margin-bottom:20px;padding:8px 0}tbody th,tbody td{border:0;padding:8px 12px}td[data-label]::before{content:attr(data-label);display:block;font:700 .72rem/1.4 var(--mono);text-transform:uppercase;margin-bottom:6px;color:var(--muted)}.spec{padding:17px}.lead{font-size:1.15rem}}