:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --card: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #f59e0b;
  --accent-2: #38bdf8;
  --ok: #22c55e;
  --danger: #ef4444;
  --border: #334155;
  --radius: 12px;
  --font: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent-2); }
button, input, select, textarea {
  font: inherit;
}
button {
  cursor: pointer;
  border: 0;
  border-radius: 10px;
  padding: 0.7rem 1rem;
  background: var(--accent);
  color: #111;
  font-weight: 600;
}
button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
button.danger { background: var(--danger); color: #fff; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
}
label { display: block; margin: 0.6rem 0 0.25rem; color: var(--muted); font-size: 0.9rem; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-size: 1.25rem; font-weight: 800; letter-spacing: 0.02em; }
.brand span { color: var(--accent); }
.nav { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.nav button { padding: 0.45rem 0.75rem; background: var(--bg-soft); color: var(--text); }
.nav button.active { background: var(--accent); color: #111; }

.container { max-width: 980px; margin: 0 auto; padding: 1.25rem; }
.card {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}
.card h2, .card h3 { margin-top: 0; }
.grid { display: grid; gap: 0.75rem; }
.grid-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) { .grid-2 { grid-template-columns: 1fr; } }

.muted { color: var(--muted); }
.row { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: #334155;
  font-size: 0.75rem;
}
.badge.ok { background: #14532d; color: #86efac; }
.badge.warn { background: #78350f; color: #fcd34d; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.75rem; }
.kpi {
  background: #0b1220;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}
.kpi strong { display: block; font-size: 1.5rem; color: var(--accent); }

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  background: #111827;
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 10px;
  max-width: 320px;
  display: none;
}
.toast.show { display: block; }
.toast.error { border-color: var(--danger); }

.hidden { display: none !important; }
.auth-wrap { max-width: 420px; margin: 3rem auto; }
.list-item {
  border-top: 1px solid var(--border);
  padding: 0.85rem 0;
}
.list-item:first-child { border-top: 0; }