:root{--bg:#f0f2f5;--s:#fff;--bd:#d9dee2;--g:#008069;--onG:#fff;--t:#111b21;--td:#54656f;--code:#e9edef}@media(prefers-color-scheme:dark){:root{--bg:#0b141a;--s:#1f2c34;--bd:#2f3b43;--g:#00a884;--onG:#04120e;--t:#e9edef;--td:#a2b0b8;--code:#111b21}}*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--t)}a{color:var(--g)}.skip{position:absolute;left:8px;top:-60px;background:var(--g);color:var(--onG);padding:10px 14px;border-radius:8px;z-index:9}.skip:focus{top:8px}.top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:12px 16px;background:var(--s);border-bottom:1px solid var(--bd)}.top nav{display:flex;gap:4px;flex-wrap:wrap}.top nav a,.brand{display:inline-block;padding:10px 12px;text-decoration:none;font-weight:600;border-radius:8px}.brand{font-size:1.15rem;padding-left:0}.wrap{max-width:780px;margin:0 auto;padding:24px 16px 40px}.wrap.center{text-align:center;padding-top:15vh;min-height:60vh}h1{font-size:clamp(1.7rem,5vw,2.4rem);line-height:1.2;margin:0 0 12px}h2{font-size:1.3rem;margin:32px 0 8px}.lead{color:var(--td);font-size:1.05rem}.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0}.chips li{background:var(--s);border:1px solid var(--bd);border-radius:20px;padding:4px 12px;font-size:.9rem}.btn{display:inline-block;background:var(--g);color:var(--onG);border:0;border-radius:10px;padding:12px 18px;min-height:44px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer}.btn.alt{background:var(--s);color:var(--g);border:2px solid var(--g)}.btn:focus-visible,a:focus-visible{outline:3px solid var(--g);outline-offset:2px}pre{background:var(--code);border:1px solid var(--bd);border-radius:10px;padding:14px;overflow:auto;font-size:.88rem;white-space:pre-wrap;overflow-wrap:anywhere}code{font-family:ui-monospace,Menlo,Consolas,monospace}iframe{border:2px solid var(--g);border-radius:12px;max-width:420px;display:block;background:var(--s)}.foot{text-align:center;color:var(--td);padding:24px 16px 32px;font-size:.9rem}.foot p{margin:4px 0}.powered{display:inline-block;padding:8px 12px}