body {
  background:#0d0d0d;
  color:#e0e0e0;
  font-family: 'Segoe UI', Arial;
  margin:0;
  padding:0;
}

.navbar {
  background:#1a1a1a;
  padding:15px;
  display:flex;
  gap:20px;
  border-bottom:1px solid #333;
}

.navbar a {
  color:#4caf50;
  text-decoration:none;
  font-size:18px;
}

.container {
  padding:30px;
}

.card {
  background:#1a1a1a;
  padding:20px;
  border-radius:10px;
  margin-bottom:20px;
  border:1px solid #333;
}

button {
  background:#4caf50;
  border:none;
  padding:10px 15px;
  border-radius:5px;
  color:white;
  cursor:pointer;
}

button.delete {
  background:#e53935;
}

button.config {
  background:#2196f3;
}