:root{--ink:#14181f;--muted:#5d6675;--line:#e3e6ec;--bg:#f6f7f9;--card:#fff;--accent:#3d4fe0;--accent-ink:#fff;--warn:#b4541a;--ok:#1d7a4f;--danger:#b3261e}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.side{background:#11141b;color:#cfd4de;padding:20px 14px;display:flex;flex-direction:column;gap:4px}
.side .logo{font-size:20px;font-weight:700;color:#fff;letter-spacing:.3px;padding:0 8px}
.side .parent{font-size:11px;color:#8b93a3;padding:0 8px 16px}
.side a{color:#cfd4de;padding:8px 10px;border-radius:8px;display:block}
.side a:hover,.side a.on{background:#232836;color:#fff;text-decoration:none}
.side .sep{margin:12px 8px 4px;font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:#7b8394}
.side .who{margin-top:auto;font-size:13px;padding:10px 8px;border-top:1px solid #262b38}
.side button.link{color:#cfd4de}
.main{padding:28px 34px;max-width:1100px;width:100%}
h1{font-size:24px;margin:0 0 4px}h2{font-size:17px;margin:0 0 12px}
.sub{color:var(--muted);margin:0 0 22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:18px}
.grid{display:grid;gap:18px}.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}
.stat{font-size:26px;font-weight:700}.stat small{display:block;font-size:13px;font-weight:400;color:var(--muted)}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:600}
tr:last-child td{border-bottom:0}
label{display:block;font-size:13px;font-weight:600;margin:12px 0 4px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=url],select,textarea{width:100%;padding:9px 11px;border:1px solid #cdd2db;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);border:0;border-radius:8px;padding:9px 16px;font:inherit;font-weight:600;cursor:pointer}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid #cdd2db}.btn.small{padding:5px 10px;font-size:13px}.btn.danger{background:var(--danger)}
button.link{background:none;border:0;padding:0;color:var(--accent);font:inherit;cursor:pointer}
.row{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.row>*{flex:1;min-width:150px}.row>.fit{flex:0 0 auto;min-width:0}
.inline{display:inline}
.flash{background:#eef1ff;border:1px solid #c9d1ff;color:#1f2a8a;padding:10px 14px;border-radius:8px;margin-bottom:16px}
.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:#eceef3;color:#3b4353}
.tag.ok{background:#e2f4ea;color:var(--ok)}.tag.warn{background:#fdeedd;color:var(--warn)}.tag.off{background:#f1f1f1;color:#888}
.muted{color:var(--muted)}.right{text-align:right}.mt{margin-top:14px}.nowrap{white-space:nowrap}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px 16px}
.checks label{font-weight:400;margin:0;display:flex;gap:8px;align-items:center}
.msg{border-radius:12px;padding:12px 16px;margin-bottom:12px;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.user{background:#e9ecff;margin-left:12%}.msg.assistant{background:#fff;border:1px solid var(--line);margin-right:6%}
.msg .by{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:4px}
.secret{font-family:ui-monospace,Menlo,Consolas,monospace;background:#fff8e1;border:1px solid #f0d98a;padding:6px 10px;border-radius:6px;display:inline-block}
.auth{max-width:420px;margin:8vh auto;padding:0 16px}.auth .logo{font-size:28px;font-weight:700;text-align:center}.auth .parent{text-align:center;color:var(--muted);margin-bottom:20px}
.banner{background:#fdeedd;color:#7a3b0d;padding:8px 14px;border-radius:8px;margin-bottom:16px;font-size:14px}
@media (max-width:820px){.shell{grid-template-columns:1fr}.side{flex-direction:row;flex-wrap:wrap;align-items:center}.side .sep,.side .parent{display:none}.side .who{margin:0;border:0}.main{padding:18px}.g2,.g3{grid-template-columns:1fr}.msg.user{margin-left:0}.msg.assistant{margin-right:0}}
.pre{white-space:pre-wrap;overflow-wrap:anywhere}