:root{--bg:#eef3f7;--card:#fff;--line:#d7dee6;--text:#0f172a;--muted:#475569;--accent:#1e6cff;--ok:#22c55e;--bad:#ef4444;}
*{box-sizing:border-box}html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);
background:linear-gradient(to right, rgba(15,23,42,.04) 1px, transparent 1px),
linear-gradient(to bottom, rgba(15,23,42,.04) 1px, transparent 1px),var(--bg);
background-size:48px 48px,48px 48px,auto;}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}
.card{width:min(560px,100%);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;
box-shadow:0 18px 60px rgba(15,23,42,.10);}
.brand{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.logo{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
border:1px solid var(--line);background:linear-gradient(135deg,#0ea5e9,#1e6cff);color:#fff;font-weight:900}
.brandname{font-weight:950;letter-spacing:.03em}.brandtag{color:var(--muted)}
h1{margin:8px 0;font-size:40px;letter-spacing:-.02em}.hint{margin:0 0 18px;color:var(--muted);font-size:18px;line-height:1.5}
.field{display:block;margin:14px 0}.label{display:block;font-weight:800;margin:0 0 8px}
input{width:100%;padding:14px;border:1px solid var(--line);border-radius:14px;outline:none;font-size:16px;background:#fff}
input:focus{border-color:rgba(30,108,255,.65);box-shadow:0 0 0 4px rgba(30,108,255,.12)}
.btn{width:100%;margin-top:6px;border:none;padding:16px 18px;border-radius:16px;font-weight:900;font-size:18px;color:#fff;
background:linear-gradient(135deg,#0ea5e9,#1e6cff);cursor:pointer}
.links{margin-top:12px;text-align:center;font-weight:800}
.alert{border:1px solid rgba(239,68,68,.35);background:rgba(239,68,68,.08);color:#991b1b;padding:12px 14px;border-radius:14px;margin:10px 0 16px}
.meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:var(--muted)}
.cad-leds{display:flex;gap:7px;align-items:center}
.cad-leds .dot{width:9px;height:9px;border-radius:50%;background:#9aa4ad;box-shadow:inset 0 0 0 1px rgba(0,0,0,.18)}
.cad-leds.ok .dot{background:var(--ok);box-shadow:0 0 6px rgba(34,197,94,.75),inset 0 0 0 1px rgba(0,0,0,.25)}
.cad-leds.bad .dot{background:var(--bad);box-shadow:0 0 6px rgba(239,68,68,.7),inset 0 0 0 1px rgba(0,0,0,.25)}
.footer{margin-top:12px;text-align:center;color:var(--muted)}