body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 500px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.logo {
  display: block;
  margin: auto;
  width: 150px;
}
h1, h2, h3 {
  text-align: center;
}
input, button, a {
  width: 100%;
  padding: 10px;
  margin: 5px 0;
  border-radius: 5px;
  border: 1px solid #ddd;
}
button, .btn-link {
  background: #ff9800;
  color: white;
  border: none;
  font-weight: bold;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
button:hover, .btn-link:hover {
  background: #e68900;
}
.hidden {
  display: none;
}