body {
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  margin: 0;
  padding: 40px 20px;
  background: #f7f7f7;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input {
  width: 100%;
  margin-bottom: 15px;
  padding: 10px;
  font-size: 1em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  width: 100%;
  padding: 12px;
  background-color: #0077cc;
  color: white;
  border: none;
  font-size: 1em;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #005fa3;
}

.error {
  color: red;
  margin-top: 10px;
}