:root{--bg:#EFF8F7;--card:#fff;--ink:#12403D;--muted:#3F6663;--line:#CDE8E6;--accent:#17625E;--btn:#FFD23F;--btn-ink:#12403D;--focus:#B4432A}
@media (prefers-color-scheme:dark){:root{--bg:#0A2321;--card:#11302D;--ink:#E4F4F2;--muted:#B3D3CF;--line:#2A5853;--accent:#7FE0D8;--focus:#FFD23F}}
*{box-sizing:border-box}
html,body{overflow-x:hidden;overscroll-behavior-x:none}
@supports (overflow:clip){html,body{overflow-x:clip}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-text-size-adjust:100%}
header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--card);position:sticky;top:0}
.brand{font-weight:900;letter-spacing:.04em;color:var(--ink);text-decoration:none}.brand b{color:var(--accent)}
.back{color:var(--ink);font-weight:700;min-height:44px;display:inline-flex;align-items:center}
main{max-width:720px;margin:0 auto;padding:20px 16px 40px}
h1{font-size:clamp(26px,7vw,36px);line-height:1.15;margin:8px 0 4px}
h2{font-size:19px;margin:28px 0 8px}
.updated{color:var(--muted);font-size:14px;margin:0 0 16px}
.lead{font-size:17px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px 16px}
ul{padding-left:20px}li{margin:6px 0}
a{color:var(--accent);overflow-wrap:anywhere}
a:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.contact{margin-top:32px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.contact h2{margin-top:0}
.btn{display:flex;justify-content:center;align-items:center;min-height:50px;border-radius:999px;background:var(--btn);color:var(--btn-ink);font-weight:800;text-decoration:none}
footer{text-align:center;padding:20px 16px 32px;color:var(--muted);font-size:14px}
footer a{color:var(--ink);display:inline-block;min-height:44px;line-height:44px}