:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #22c55e;
  --border: #334155;
  --danger: #ef4444;
  --warn: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, #0b1220 0%, #0f172a 100%);
  color: var(--text);
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(8px);
}
.topbar h1 { margin: 0 0 4px; font-size: 28px; }
.topbar p { margin: 0; color: var(--muted); }
.container { padding: 24px; max-width: 1400px; margin: 0 auto; }
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid-2 { grid-template-columns: 2fr 1fr; }
.panel {
  background: rgba(17, 24, 39, 0.96);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.panel-header { display:flex; justify-content:space-between; gap:16px; align-items:center; }
.actions { display:flex; gap:10px; flex-wrap: wrap; }
.card {
  background: rgba(17, 24, 39, 0.96);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  cursor: pointer;
  transition: .2s ease;
}
.card:hover { transform: translateY(-2px); border-color: #475569; }
.card.active { outline: 2px solid var(--accent); }
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); }
.summary { display:grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 12px; margin-top: 16px; }
.metric {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
}
.metric span { display:block; color: var(--muted); font-size: 13px; }
.metric strong { display:block; margin-top: 6px; font-size: 24px; }
.table-wrap { overflow:auto; }
table { width:100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid #243244; text-align:left; font-size:14px; }
th { color: var(--muted); font-weight: 600; }
button {
  background: var(--accent);
  color: #052e16;
  border: none;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}
button.secondary {
  background: #1e293b;
  color: var(--text);
  border: 1px solid var(--border);
}
button:disabled { opacity: .5; cursor: not-allowed; }
.empty { color: var(--muted); text-align: center; padding: 18px; }
.badge { padding: 4px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.success { background: rgba(34,197,94,.18); color: #86efac; }
.badge.warn { background: rgba(245,158,11,.18); color: #fcd34d; }
.badge.muted { background: rgba(148,163,184,.12); color: #cbd5e1; }
.alert-item { border:1px solid var(--border); border-left: 4px solid var(--warn); border-radius: 12px; padding: 12px; margin-bottom: 10px; background:#121b2c; }
.alert-item strong { display:block; margin-bottom:4px; }
.settings-form { width:min(560px, 96vw); background:var(--panel); color:var(--text); border:1px solid var(--border); border-radius:16px; padding:18px; }
.settings-form label { display:block; margin:12px 0; }
.settings-form input { width:100%; padding:12px; border-radius:12px; border:1px solid var(--border); background:#0b1220; color:var(--text); }
.dialog-actions { display:flex; justify-content:flex-end; gap:10px; margin-top:16px; }
.small { color:var(--muted); font-size:13px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } .panel-header { flex-direction: column; align-items: flex-start; } }