body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
}

.topbar {
  padding: 15px 30px;
  background: #1a1a1a;
  display: flex;
  justify-content: space-between;
}

.dashboard {
  padding: 30px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background: #1f1f1f;
  padding: 20px;
  border-radius: 8px;
}