:root{--bg:#0f1419;--surface:#1a222c;--surface-2:#243040;--border:#2f3d4d;--text:#e8eef4;--muted:#8fa3b8;--accent:#1a9f6e;--accent-2:#2ecf94;--danger:#e85d5d;--warn:#e6b84d;--font:"Segoe UI",system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:radial-gradient(ellipse 80% 50% at 10% -20%,rgba(26,159,110,.18),transparent),radial-gradient(ellipse 60% 40% at 100% 0,rgba(46,100,180,.12),transparent),var(--bg);color:var(--text);font-family:var(--font)}a{color:var(--accent-2);text-decoration:none}button,input,select,textarea{font:inherit}.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:rgba(26,34,44,.92);border-right:1px solid var(--border);padding:1.5rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.brand{font-size:1.25rem;font-weight:700;letter-spacing:-.02em;padding:0 .5rem}.brand span{color:var(--accent-2)}.nav{display:flex;flex-direction:column;gap:.35rem}.nav a{color:var(--muted);padding:.65rem .75rem;border-radius:8px}.nav a.active,.nav a:hover{background:var(--surface-2);color:var(--text)}.main{padding:1.75rem 2rem}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}h1{margin:0;font-size:1.5rem;font-weight:650}.muted{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:1rem;gap:1rem;margin-bottom:1.5rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem 1.1rem}.card .label{color:var(--muted);font-size:.85rem}.card .value{font-size:1.5rem;font-weight:650;margin-top:.35rem}.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.25rem}.panel h2{margin:0 0 1rem;font-size:1.05rem}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:.7rem .5rem;border-bottom:1px solid var(--border);font-size:.92rem}th{color:var(--muted);font-weight:550}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:.55rem .9rem;border-radius:8px;cursor:pointer}.btn:hover{border-color:var(--muted)}.btn-primary{background:linear-gradient(180deg,var(--accent-2),var(--accent));border-color:transparent;color:#04140e;font-weight:600}.btn-danger{background:transparent;border-color:var(--danger);color:var(--danger)}.form{display:grid;grid-gap:.85rem;gap:.85rem;max-width:420px}.form label{display:grid;grid-gap:.35rem;gap:.35rem;font-size:.9rem;color:var(--muted)}.form input,.form select,.form textarea{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.65rem .75rem;color:var(--text)}.login-page{min-height:100vh;display:grid;place-items:center;padding:1.5rem}.login-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2rem}.login-card h1{margin-bottom:.35rem}.error{color:var(--danger);font-size:.9rem}.badge{display:inline-block;padding:.15rem .5rem;border-radius:999px;font-size:.75rem;background:var(--surface-2);color:var(--muted)}.badge.on{background:rgba(46,207,148,.15);color:var(--accent-2)}.badge.off{background:rgba(232,93,93,.12);color:var(--danger)}.row-actions{display:flex;gap:.5rem}@media (max-width:860px){.shell{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border)}.nav{flex-direction:row;flex-wrap:wrap}}