:root{
  --brand:#14375e; --brand-600:#1d4c81; --accent:#2b86c9;
  --ink:#1c2b3a; --muted:#5c6b7a; --line:#d6dce3; --bg:#eef1f5;
  --panel:#fff; --panel-alt:#f6f8fa; --ok:#1f8f3a; --err:#c0392b;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px}
.topbar{display:flex;align-items:center;gap:20px;background:linear-gradient(135deg,var(--brand),var(--brand-600));color:#fff;padding:12px 22px}
.topbar .brand{font-weight:700;font-size:16px}
.topbar nav{margin-left:auto;display:flex;align-items:center;gap:16px}
.topbar a{color:#dbe7f3;text-decoration:none}
.topbar a:hover{color:#fff}
.topbar .who{color:#9db8d4;font-size:13px}
.btn{background:rgba(255,255,255,.12);padding:6px 12px;border-radius:6px}
main{max-width:1100px;margin:24px auto;padding:0 18px}
h1{font-size:22px;color:var(--brand)}
h2{font-size:16px;color:var(--brand);margin:0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px;margin:16px 0;box-shadow:0 4px 16px rgba(15,43,73,.06)}
.card.narrow{max-width:380px;margin:60px auto}
.row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
label{display:block;margin:12px 0 4px;color:var(--muted)}
input,select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}
button{background:var(--brand);color:#fff;border:0;border-radius:6px;padding:9px 16px;font-weight:600;cursor:pointer;margin-top:12px}
button:hover{background:var(--brand-600)}
button.small{padding:5px 10px;margin:0;font-size:13px}
button.danger{background:var(--err)}
table.grid{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.grid th{background:var(--brand);color:#fff;text-align:left;padding:10px 12px;font-size:13px}
.grid td{padding:9px 12px;border-top:1px solid var(--line)}
.grid tr:nth-child(even) td{background:var(--panel-alt)}
.grid a{color:var(--accent);text-decoration:none;font-weight:600}
.actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.actions form{display:inline;margin:0}
.actions select{width:auto}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px;vertical-align:middle}
.dot.on{background:var(--ok)} .dot.off{background:#b3bcc6}
.cards{display:flex;gap:14px;flex-wrap:wrap;margin:16px 0}
.stat{flex:1;min-width:120px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;text-align:center}
.stat span{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.stat b{font-size:28px;color:var(--brand)}
.muted{color:var(--muted)}
.flash{padding:10px 14px;border-radius:8px;margin:10px 0}
.flash.error{background:#fdecea;color:var(--err);border:1px solid #f5c6c0}
.flash.ok{background:#eaf6ec;color:var(--ok);border:1px solid #bfe3c6}
@media(max-width:600px){.topbar{flex-wrap:wrap;gap:10px}.topbar nav{gap:10px}}