body {
    font-family: Arial, sans-serif;
    background: #f0f4f8;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
}

h2 {
    margin: 0 0 20px;
    color: #2c3e50;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin: 10px 0 5px;
    font-weight: bold;
    color: #2c3e50;
}

input[type="email"],
input[type="password"],
input[type="text"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 15px;
    font-size: 16px;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus {
    border-color: #3498db;
    outline: none;
}

button {
    padding: 10px;
    border: none;
    border-radius: 4px;
    background-color: #3498db;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2980b9;
}

.error-message {
    color: red;
    text-align: center;
    margin-bottom: 15px;
}