:root{--bg:#0b1020;--fg:#e6eaf2;--muted:#aab3c2;--card:#121a2e;--brand:#5cc3ff;--warn:#ffd166;--danger:#ff6b6b;}
*{box-sizing:border-box} body{margin:0;font-family:system-ui,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg)}
header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--card);position:sticky;top:0;z-index:10;border-bottom:1px solid #1f2942}
nav a{color:var(--muted);text-decoration:none;margin-right:12px;padding:6px 8px;border-radius:6px}
nav a.active{background:#1b243d;color:var(--fg)}
.container{padding:16px}
.card{background:var(--card);border:1px solid #1f2942;border-radius:12px;padding:16px;margin-bottom:16px}
.grid{display:grid;gap:16px}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.btn{background:#18213a;color:#e8eefc;border:1px solid #2a3557;border-radius:8px;padding:8px 12px;cursor:pointer}
.btn.primary{background:linear-gradient(180deg,#1c2b4e,#16243f);border-color:#2e3f6c}
input,select,textarea{background:#0f1730;border:1px solid #2a3557;border-radius:8px;color:#e6eaf2;padding:8px}
label{display:block;margin:8px 0 4px;color:#bec7da}
.flex{display:flex;gap:12px;align-items:center}
.right{margin-left:auto}
.muted{color:var(--muted)}
.badge{display:inline-block;padding:2px 6px;border-radius:999px;font-size:12px;border:1px solid #2a3557}
.toast{position:fixed;right:16px;bottom:16px;background:#17233f;border:1px solid #2a3557;border-radius:10px;padding:12px 14px;min-width:240px}
.ticker{font-variant-numeric:tabular-nums}
.gauge{width:120px;height:120px}