:root{--brand:#0b3d6b;--accent:#1a9850;--bg:#f3f5f8;--card:#fff;--text:#16202a;--muted:#5b6670;--line:#dde3ea;--danger:#c0392b}
/* Dark is the default and uses true black so OLED pixels stay off; light mode is opt-in. */
:root:not([data-theme="light"]){--brand:#06213a;--bg:#000;--card:#07090b;--text:#d8e0e8;--muted:#8a96a3;--line:#1b232c;color-scheme:dark}
:root[data-theme="light"]{color-scheme:light}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:#2b7bd0}
.top{display:flex;align-items:center;gap:16px;padding:10px 16px;background:var(--brand);color:#fff;position:sticky;top:0;z-index:1000}
.brand{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:600}.brand img{width:28px;height:28px}
#nav{margin-left:auto;display:flex;gap:14px;align-items:center;flex-wrap:wrap}#nav a{color:#dbe7f3;text-decoration:none}#nav a:hover{color:#fff}
main{max-width:1400px;margin:0 auto;padding:16px}
.pad{padding:16px}.muted{color:var(--muted)}.small{font-size:13px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.narrow{max-width:420px;margin:40px auto}
h1{font-size:22px;margin:0 0 12px}h2{font-size:18px;margin:0 0 10px}h3{font-size:15px;margin:12px 0 6px}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--text);font:inherit}
button,.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;border:1px solid var(--brand);background:var(--brand);color:#fff;font:inherit;cursor:pointer;text-decoration:none}
button.secondary,.btn.secondary{background:transparent;color:var(--text);border-color:var(--line)}button.danger{background:var(--danger);border-color:var(--danger)}
button:disabled{opacity:.5;cursor:default}button.on{background:var(--accent);border-color:var(--accent)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.row>*{flex:0 0 auto}.grow{flex:1 1 auto!important}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.site{cursor:pointer}.site:hover{border-color:#2b7bd0}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:500}
.badge{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;background:#e8eef5;color:#0b3d6b}.badge.warn{background:#fde8c8;color:#7a4a00}.badge.ok{background:#d9f2df;color:#145a2a}
:root:not([data-theme="light"]) .badge{background:#0d2033;color:#9cc3e8}:root:not([data-theme="light"]) .badge.warn{background:#2e1f05;color:#f0c27a}:root:not([data-theme="light"]) .badge.ok{background:#082114;color:#8fd6a3}
:root:not([data-theme="light"]) button.secondary,:root:not([data-theme="light"]) .btn.secondary{color:var(--text)}
#theme{background:transparent;border:1px solid rgba(255,255,255,.3);padding:4px 10px}
#map{height:420px;border-radius:10px;border:1px solid var(--line)}
.floorwrap{display:grid;grid-template-columns:1fr 340px;gap:14px}
@media (max-width:900px){.floorwrap{grid-template-columns:1fr}}
.canvasbox{position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;height:calc(100vh - 200px);min-height:420px;touch-action:none}
.canvasbox canvas{display:block;width:100%;height:100%}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px;align-items:center}.toolbar select{width:auto}
.legend{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:8px}.legend i{display:inline-block;width:12px;height:10px;margin-right:3px;vertical-align:middle;border-radius:2px}
.side{max-height:calc(100vh - 150px);overflow:auto}
.aprow{padding:8px;border-radius:8px;cursor:pointer;border:1px solid transparent}.aprow:hover,.aprow.sel{border-color:#2b7bd0;background:rgba(43,123,208,.06)}
#toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:#16202a;color:#fff;padding:10px 16px;border-radius:8px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:2000;max-width:90vw}#toast.show{opacity:1}
.hint{font-size:12px;color:var(--muted);padding:6px 10px;position:absolute;left:8px;bottom:8px;background:var(--card);border-radius:6px;border:1px solid var(--line)}
dialog{border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--text);max-width:520px;width:92vw}dialog::backdrop{background:rgba(0,0,0,.4)}
pre{white-space:pre-wrap;font-size:12px;background:var(--bg);padding:10px;border-radius:8px;max-height:300px;overflow:auto}