:root{--ink:#1b1f23;--muted:#5a6270;--line:#e3e6ea;--bg:#fbfbf9;--card:#fff;--brand:#0f5132;--brand-2:#198754;--accent:#f0f7f3;
--red:#b42318;--red-bg:#fef3f2;--amber:#8a5a00;--amber-bg:#fff7e0;--blue:#1d4ed8;--blue-bg:#eef4ff;--grey-bg:#f2f4f7;
--radius:10px;--max:1120px;font-size:17px}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--brand-2)}a:hover{color:var(--brand)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.15rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:8px}
.brand-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px;background:var(--brand);color:#fff;font-size:.95rem}
.site-nav{display:flex;gap:18px;flex-wrap:wrap}
.site-nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:.92rem}
.site-nav a[aria-current=page],.site-nav a:hover{color:var(--brand)}
main{padding:28px 20px 56px}
h1{font-size:clamp(1.7rem,3.6vw,2.5rem);line-height:1.2;margin:.4em 0 .5em;letter-spacing:-.01em}
h2{font-size:1.45rem;margin:2.2em 0 .6em;line-height:1.3;padding-top:.4em;border-top:1px solid var(--line)}
h3{font-size:1.12rem;margin:1.4em 0 .4em}
p,li{max-width:76ch}
.lede{font-size:1.15rem;color:var(--muted);max-width:68ch}
.meta-line{color:var(--muted);font-size:.9rem}
.callout{background:var(--accent);border-left:4px solid var(--brand-2);padding:14px 18px;border-radius:0 var(--radius) var(--radius) 0;margin:1.2em 0;max-width:80ch}
.callout.warn{background:var(--amber-bg);border-color:#e0a100}
.callout p{margin:.3em 0}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 20px;max-width:560px}
.toc ol{margin:.3em 0;padding-left:1.2em}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin:1em 0}
table{border-collapse:collapse;width:100%;font-size:.88rem}
caption{text-align:left;padding:10px 14px;color:var(--muted);font-size:.85rem;caption-side:top}
th,td{padding:10px 14px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
thead th{background:var(--grey-bg);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);border-top:0;white-space:nowrap}
tbody th{font-weight:700;min-width:150px}
td.num{white-space:nowrap;font-weight:700}
table.inst td:nth-child(4){min-width:280px}table.inst td:last-child{min-width:140px;word-break:break-word}table.inst td:nth-child(2){min-width:120px}
blockquote{margin:.5em 0 0;padding:.2em .8em;border-left:3px solid var(--line);color:var(--muted);font-style:italic}
.tag{display:inline-block;font-size:.7rem;font-weight:700;background:var(--grey-bg);color:var(--muted);border-radius:99px;padding:1px 7px;vertical-align:middle}
.verdict{display:inline-block;font-weight:700;font-size:.78rem;border-radius:6px;padding:3px 8px;white-space:nowrap}
.v-rejects{background:var(--red-bg);color:var(--red)}.v-partial{background:var(--amber-bg);color:var(--amber)}
.v-requires-physical{background:var(--blue-bg);color:var(--blue)}.v-no-restriction-stated{background:var(--grey-bg);color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:1em 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:4px 18px 16px}
.card ul.facts{padding-left:1.1em;font-size:.9rem}.card .note{font-size:.85rem;color:var(--muted)}
.card-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn{display:inline-block;background:var(--brand);color:#fff!important;text-decoration:none;font-weight:700;padding:8px 14px;border-radius:8px;font-size:.9rem}
.btn:hover{background:var(--brand-2)}.src{font-size:.8rem;color:var(--muted)}
details summary{cursor:pointer}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:4px 18px;margin:10px 0;max-width:80ch}
.faq-item summary h3{display:inline;font-size:1rem;margin:0}.faq-item summary{padding:10px 0}
.hero{padding:18px 0 6px}
.usecases{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin:1.2em 0;padding:0;list-style:none}
.usecases li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;max-width:none}
.usecases a{font-weight:700;text-decoration:none}.usecases span{display:block;color:var(--muted);font-size:.88rem}
.soon{color:var(--muted);font-weight:600}
.guide-list{padding:0;list-style:none}.guide-list li{margin:.6em 0}.guide-list span{display:block;color:var(--muted);font-size:.9rem}
.address-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.address-grid div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px}
.address-grid h3{margin-top:.3em}
.filter{padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:1rem;width:min(420px,100%)}
.site-footer{border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:.88rem}
.footer-inner{padding:24px 20px}
.sources li{font-size:.9rem;word-break:break-word}
@media (max-width:640px){:root{font-size:16px}.site-nav{gap:12px}h2{font-size:1.25rem}}