:root{--bg:#f3e6c8;--surface:#fffaf0;--ink:#3a2f22;--muted:#7a6a55;--primary:#3f9d6b;--primary-d:#2f7d54;--line:#e4d3ae;--flag:#d9534f}
@media (prefers-color-scheme:dark){:root{--bg:#1f2a22;--surface:#2a372e;--ink:#f1ead8;--muted:#b9b29c;--primary:#52b884;--primary-d:#7bd1a1;--line:#3b4a3f}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 ui-rounded,"SF Pro Rounded",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:16px 18px 56px}
header.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 12px;padding:6px 0 14px}
header.top a.brand{white-space:nowrap;display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800}
header.top img{width:36px;height:36px;border-radius:9px}
nav{white-space:nowrap}nav a{color:var(--primary-d);text-decoration:none;font-weight:700;margin-right:16px}nav a:last-child{margin-right:0}
h1{font-size:clamp(30px,7vw,40px);line-height:1.15;margin:.4em 0 .2em}
h2{font-size:22px;margin:1.6em 0 .4em}
.lead{font-size:19px;color:var(--muted);margin:0 0 1em}
a{color:var(--primary-d)}
.btn{display:inline-block;background:var(--primary);color:#fff;text-decoration:none;font-weight:800;padding:12px 20px;border-radius:999px;margin:6px 8px 6px 0;box-shadow:0 3px 0 var(--primary-d)}
.btn.alt{background:var(--surface);color:var(--primary-d);border:2px solid var(--primary);box-shadow:none}
ul,ol{padding-left:1.3em}li{margin:.4em 0}
.cta{background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:16px 18px;margin:2em 0}
figure.board{margin:1.2em 0;text-align:center}
.grid{display:inline-grid;grid-template-columns:repeat(var(--cols),44px);gap:4px}
.grid i{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:20px}
.grid .h{background:#d9ccb0;box-shadow:0 3px 0 #b8aa8c;color:var(--flag)}
.grid .h.s{color:var(--primary-d)}
.grid .o{background:var(--surface);border:2px solid var(--line)}
.grid .n{color:var(--primary-d)}
figcaption{font-size:14px;color:var(--muted);margin-top:8px}
footer{margin-top:3em;color:var(--muted);font-size:14px}footer a{color:var(--muted)}