body {
  font-family: Poppins, sans-serif;
  text-align: center;
  padding: 40px;
  background: #0f172a;
  color: #e2e8f0;
}
h1 { color: #38bdf8; }
h2 { margin-top: 40px; color: #fbbf24; }
.btn {
  background: #38bdf8;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 10px;
  display: inline-block;
  margin: 10px 0;
}
form {
  margin-top: 20px;
}
input[type="file"], button {
  padding: 10px;
  border-radius: 8px;
  border: none;
}
button {
  background-color: #16a34a;
  color: white;
  cursor: pointer;
}