body{
  margin:0;
  font-family:Arial,sans-serif;
  background:#0b1020;
  color:white;
}
#app{padding:20px}
.card{
  background:#1a2744;
  padding:16px;
  border-radius:12px;
}

.navbar{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:15px;
}

.navbar button{
  padding:10px 14px;
  border:none;
  border-radius:10px;
  cursor:pointer;
}