:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #22d3ee;
  --danger: #ef4444;
  --ok: #34d399;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
.container { max-width: 980px; margin: 0 auto; padding: 24px; }
.card { background: var(--card); border-radius: 16px; padding: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.title { font-size: 28px; margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 14px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.btn { display: inline-block; padding: 10px 14px; border-radius: 10px; border: 0; cursor: pointer; font-weight: 600; }
.btn-primary { background: var(--primary); color: #0a0a0a; }
.btn-danger { background: var(--danger); color: white; }
.btn-ok { background: var(--ok); color: #062f27; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid #333;
  background: #0b1220; color: var(--text);
}
label { font-weight: 600; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.nav { display:flex; gap: 10px; margin-bottom: 16px; }
.flash { padding: 10px 12px; border-radius: 10px; margin-bottom: 12px; }
.flash-ok { background: rgba(52,211,153,.15); border: 1px solid var(--ok); }
.flash-err { background: rgba(239,68,68,.15); border: 1px solid var(--danger); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px; border-bottom: 1px solid #333; }
.right { text-align: right; }