body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

form {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 400px;
}

h1 {
    text-align: center;
    color: #444444;
    font-size: 24px;
    margin-bottom: 20px;
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    font-weight: bold;
    color: #555555;
    display: block;
    margin-bottom: 5px;
}

input, select, button {
    width: 100%;
    padding: 10px 12px;
    margin: 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    box-sizing: border-box;
}

input::placeholder, select::placeholder {
    color: #aaaaaa;
}

input:focus, select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}

button {
    background-color: #007bff;
    color: #ffffff;
    border: none;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
    transition: background-color 0.3s;
    margin-top: 10px;
}

button:hover {
    background-color: #0056b3;
}

button:active {
    background-color: #003f8a;
}

@media (max-width: 480px) {
    form {
        padding: 20px;
    }

    h1 {
        font-size: 20px;
    }

    button {
        font-size: 14px;
    }
}