:root{--bg:#f4f6f8;--card:#fff;--ink:#17202a;--muted:#5f6b77;--line:#dde3e9;--accent:#0b4f8a;--accent2:#e8f0f8;--ok:#1d7a46;--err:#b42318;--warn:#9a6700}
@media (prefers-color-scheme:dark){:root{--bg:#11161c;--card:#1a2129;--ink:#e6ebf0;--muted:#9aa6b2;--line:#2c3540;--accent:#6aa9e6;--accent2:#1c2a38}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--accent)}
.top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:12px 24px;background:var(--card);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:600}
.brand small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:8px;background:var(--accent);color:#fff;font-weight:700}
nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
nav a{text-decoration:none;color:var(--ink)}
nav a:hover{color:var(--accent)}
main{flex:1;width:100%;max-width:1100px;margin:0 auto;padding:24px 16px}
h1{font-size:26px;margin:0 0 16px}
h2{font-size:19px;margin:0 0 12px}
h2.section{margin:28px 0 12px}
h3{font-size:16px;margin:0 0 10px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:16px;overflow-x:auto}
.card.narrow{max-width:440px;margin:40px auto}
.notice{border-left:4px solid var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.grid .card{margin:0}
.links{list-style:none;margin:0;padding:0}
.links li{padding:4px 0;border-bottom:1px solid var(--line)}
.links li:last-child{border:0}
.pre{white-space:pre-wrap}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:13px}
.small{font-size:12px}
label{display:block;margin:0 0 14px;font-weight:500}
input,select,textarea{display:block;width:100%;margin-top:4px;padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);font:inherit}
textarea{resize:vertical}
.row{display:flex;gap:8px;align-items:center}
.row input,.row select{margin:0;width:auto;flex:1;min-width:140px}
.row.wrap{flex-wrap:wrap}
.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:7px;padding:9px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn.small{padding:6px 10px;font-size:13px}
.link{background:none;border:0;color:var(--accent);cursor:pointer;font:inherit;padding:0}
.danger{color:var(--err)}
form.inline{display:inline;margin-left:8px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top}
td.actions .row input{min-width:150px}
.tag{display:inline-block;font-size:12px;padding:1px 7px;border-radius:10px;background:var(--accent2)}
.tag.on{color:var(--ok)}.tag.off{color:var(--err)}
.flash{padding:10px 14px;border-radius:7px;margin-bottom:14px;background:var(--accent2)}
.flash.ok{border-left:4px solid var(--ok)}.flash.err{border-left:4px solid var(--err)}.flash.warn{border-left:4px solid var(--warn)}
.hero{max-width:640px;margin:60px auto;text-align:center}
.hero h1{font-size:32px}
.foot{text-align:center;color:var(--muted);font-size:13px;padding:20px 16px;border-top:1px solid var(--line)}
@media (max-width:640px){.top{padding:10px 16px}td.actions .row{flex-wrap:wrap}}