:root {
  --bg: #0b0c10; --panel: #14161c; --panel-2: #1a1d24; --line: #2a2e38;
  --text: #e8e9ec; --muted: #9aa0ac; --faint: #6b7280;
  --accent: #f5b423; --ok: #34c47c; --danger: #f4635e; --info: #3b82f6;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, Segoe UI, Roboto, sans-serif; }
.app { display: grid; grid-template-columns: 200px 1fr; min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--line); padding: 18px 0; }
.sidebar .brand { padding: 0 18px 18px; font-weight: 700; font-size: 15px; border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.nav { display: block; width: 100%; text-align: left; background: none; border: none; color: var(--muted); padding: 10px 18px; cursor: pointer; font-size: 13.5px; }
.nav:hover { background: var(--panel-2); color: var(--text); }
.nav.active { color: var(--accent); background: var(--panel-2); border-left: 2px solid var(--accent); }
main { padding: 24px 28px; overflow-x: auto; }
.view { display: none; } .view.active { display: block; }
h1 { font-size: 20px; margin: 0 0 4px; }
.subtitle { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
.stat-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 130px; }
.stat-card em { display: block; font-style: normal; font-size: 11px; color: var(--faint); text-transform: uppercase; letter-spacing: .06em; }
.stat-card span { font-size: 19px; font-weight: 700; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--faint); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 9px 10px; border-bottom: 1px solid var(--line); }
tr:hover td { background: var(--panel-2); cursor: pointer; }
.badge { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.ok { background: rgba(52,196,124,.15); color: var(--ok); }
.badge.warn { background: rgba(245,180,35,.15); color: var(--accent); }
.badge.danger { background: rgba(244,99,94,.15); color: var(--danger); }
.badge.muted { background: rgba(154,160,172,.15); color: var(--muted); }
.btn { background: var(--panel-2); border: 1px solid var(--line); color: var(--text); padding: 7px 12px; border-radius: 7px; cursor: pointer; font-size: 12.5px; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #1a1300; border: none; font-weight: 600; }
.btn.danger { background: var(--danger); color: #fff; border: none; }
input, select, textarea { background: var(--panel-2); border: 1px solid var(--line); color: var(--text); padding: 8px 10px; border-radius: 7px; font-size: 13px; width: 100%; }
.field { margin-bottom: 12px; } .field span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.section { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-bottom: 18px; }
.section h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 14px; }
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 32px; width: 340px; }
.hidden { display: none !important; }
.error-box { background: rgba(244,99,94,.12); color: var(--danger); padding: 8px 10px; border-radius: 7px; font-size: 13px; margin-bottom: 12px; }
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .settings-grid { grid-template-columns: 1fr; } .app { grid-template-columns: 1fr; } .sidebar { display: none; } }