body {
    font-family: sans-serif;
    max-width: 400px;
    margin: 2rem auto;
    padding: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
}

.error-msg {
    color: red;
    font-size: 0.9rem;
    display: none;
    margin-top: 5px;
}

button {
    width: 100%;
    padding: 10px;
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}