body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #000;
  color: #fff;
}
h1, h2 { font-weight: bold; }
h1 { font-size: 3rem; color: #3b82f6; }
h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.card {
  background-color: #18181b;
  border: 1px solid #3f3f46;
  padding: 1rem;
  border-radius: 12px;
  width: 300px;
  text-align: center;
  color: white;
}
.input {
  width: 100%;
  max-width: 400px;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
  color: black;
}
.btn {
  padding: 10px 20px;
  background-color: #3b82f6;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}
.btn:hover {
  background-color: #2563eb;
}