* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #0a0a1a;
  color: #eee;
  min-height: 100vh;
}
.container { max-width: 1100px; margin: 0 auto; padding: 20px; }
.card {
  background: #1a1a2e;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid #2a2a4a;
}
h1, h2, h3 { color: #fff; }
.brand { color: #00d4ff; font-weight: 800; }
.btn {
  display: inline-block;
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-primary { background: linear-gradient(135deg, #00d4ff, #7b2ff7); color: #fff; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-danger { background: #e74c3c; color: #fff; }
.btn-warning { background: #f39c12; color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
input, select, textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #3a3a5a;
  border-radius: 8px;
  background: #0d0d1a;
  color: #eee;
  font-size: 14px;
  margin-bottom: 12px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: #00d4ff; }
label { display: block; color: #aaa; font-size: 13px; margin-bottom: 4px; }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-active { background: #00c853; color: #fff; }
.badge-inactive { background: #e74c3c; color: #fff; }
.badge-expired { background: #f39c12; color: #fff; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px; color: #888; font-size: 12px; text-transform: uppercase; border-bottom: 1px solid #2a2a4a; }
td { padding: 10px; border-bottom: 1px solid #1a1a3a; font-size: 13px; }
tr:hover { background: rgba(0, 212, 255, 0.03); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: #0d0d1a; border-radius: 10px; padding: 20px; text-align: center; border: 1px solid #2a2a4a; }
.stat-number { font-size: 32px; font-weight: 800; color: #00d4ff; }
.stat-label { font-size: 13px; color: #888; margin-top: 4px; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: rgba(0, 200, 83, 0.15); color: #00c853; border: 1px solid rgba(0, 200, 83, 0.3); }
.alert-error { background: rgba(231, 76, 60, 0.15); color: #e74c3c; border: 1px solid rgba(231, 76, 60, 0.3); }
.license-key { font-family: 'Courier New', monospace; color: #00d4ff; letter-spacing: 1px; font-weight: 600; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; margin-bottom: 20px; border-bottom: 1px solid #2a2a4a; }
.nav a { color: #888; text-decoration: none; margin-left: 16px; font-size: 14px; }
.nav a:hover { color: #00d4ff; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
code { background: #0d0d1a; padding: 2px 6px; border-radius: 4px; font-size: 13px; color: #00d4ff; }
@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .container { padding: 12px; }
}