:root{--bg:#f4f5f7;--card:#fff;--fg:#1d2330;--mut:#5b6475;--acc:#2c5bd6;--line:#d5d9e0;--ok:#1d7a3e;--warn:#a34b00}
@media (prefers-color-scheme:dark){:root{--bg:#14171c;--card:#1d2129;--fg:#e6e9ef;--mut:#9aa3b2;--acc:#7aa2ff;--line:#333a46;--ok:#5fcf86;--warn:#f0a35e}}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:30rem;margin:6vh auto;padding:1.5rem;background:var(--card);border:1px solid var(--line);border-radius:12px}
h1{font-size:1.25rem;margin:0 0 .75rem}p,li{color:var(--mut)}.ip{color:var(--fg);font-weight:600}
.ok{color:var(--ok);font-weight:600}.warn{color:var(--warn);font-weight:600}.step{font-size:.85rem;color:var(--mut);margin:0 0 .25rem}
label{display:block;margin:.75rem 0}input{display:block;width:100%;box-sizing:border-box;margin-top:.25rem;padding:.6rem;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:8px}
button,a.btn{display:block;box-sizing:border-box;text-align:center;text-decoration:none;margin-top:1rem;width:100%;padding:.7rem;font:inherit;font-weight:600;color:#fff;background:var(--acc);border:0;border-radius:8px;cursor:pointer}
button.alt{background:transparent;color:var(--acc);border:1px solid var(--line);font-weight:400}
button:disabled{opacity:.6}
a{color:var(--acc)}summary{cursor:pointer;color:var(--acc);margin-top:.5rem}code{color:var(--fg)}
.foot{display:flex;gap:1rem;align-items:center;justify-content:space-between;margin-top:1.5rem}.foot form{margin:0}.foot button{margin:0;width:auto;padding:.4rem .9rem}
.qr{display:block;margin:1rem auto;width:220px;height:220px;background:#fff;padding:8px;border-radius:8px}
.sec{font-family:ui-monospace,Consolas,monospace;color:var(--fg);word-break:break-all;text-align:center}
main.wide{max-width:60rem}h2{font-size:1.05rem;margin:1.6rem 0 .5rem}.small{font-size:.85rem}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.tile{display:block;padding:.8rem;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--fg)}
.tile span{display:block;color:var(--mut);font-size:.85rem}.tile:hover{border-color:var(--acc)}
textarea{display:block;width:100%;box-sizing:border-box;min-height:8rem;margin-top:.25rem;padding:.6rem;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:8px}
.scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.85rem}td,th{padding:.35rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}.row p{margin:.3rem 0}.row form,td form{margin:0}.row button,td button{width:auto;margin:.2rem 0;padding:.35rem .7rem;font-size:.85rem}
.msg{border:1px solid var(--line);border-radius:8px;padding:.6rem .8rem;margin:.6rem 0}.msg .body{color:var(--fg)}.msg img{max-width:100%;border-radius:6px;margin-top:.5rem;display:block}
a.btn.alt{background:transparent;color:var(--acc);border:1px solid var(--line);font-weight:400}
.app{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:100vh}
.side{background:var(--card);border-right:1px solid var(--line);padding:1.2rem .8rem;display:flex;flex-direction:column}
.brand{font-weight:700;color:var(--fg);margin:0 .6rem .2rem}.me{font-size:.85rem;margin:0 .6rem 1rem}
.side nav{display:flex;flex-direction:column;gap:2px}
.side a,.side .off,.side button.link{display:flex;align-items:center;width:100%;box-sizing:border-box;margin:0;padding:.5rem .6rem;border:0;border-radius:8px;background:none;color:var(--fg);text-decoration:none;font:inherit;font-size:.95rem;font-weight:400;cursor:pointer;text-align:left}
.side a:hover,.side button.link:hover{background:var(--bg)}.side a.on{background:var(--bg);color:var(--acc);font-weight:600}
.side .off{color:var(--mut);cursor:default}.ic{display:inline-block;flex:0 0 1.2rem;width:1.2rem;margin-right:.6rem;text-align:center;color:var(--mut)}
.cnt{margin-left:auto;background:var(--acc);color:#fff;border-radius:999px;padding:0 .5rem;font-size:.75rem}
.navh{font-size:.75rem;color:var(--mut);margin:1rem .6rem .3rem}
.sfoot{margin-top:auto;border-top:1px solid var(--line);padding-top:.6rem}.sfoot form{margin:0}
.content{padding:1.6rem 2rem;max-width:72rem;box-sizing:border-box}.content h1{font-size:1.4rem;margin:0 0 1.2rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin-bottom:1rem}
.grid .card{margin:0}.card.wide{grid-column:1/-1}.card.dash{border-style:dashed}.card.narrow{max-width:42rem}
.ct{font-weight:600;color:var(--fg);margin:0 0 .4rem}.card p{margin:.3rem 0}.card .btn{margin-top:.6rem}
a.btn.inline{display:inline-block;width:auto;padding:.5rem 1rem;margin:0 0 1rem}
@media (max-width:760px){.app{grid-template-columns:1fr}.side{border-right:0;border-bottom:1px solid var(--line)}.side nav{flex-direction:row;flex-wrap:wrap}.side a,.side .off{width:auto}.navh{display:none}.sfoot{display:flex;gap:.5rem}.content{padding:1rem}}