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

h1 {
    text-align: center;
    color: #333;
}

form {
    background-color: #fff;
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

label {
    font-weight: bold;
    color: #555;
    margin-bottom: 5px;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}

input[type="text"]:focus,
input[type="number"]:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}

div[style="color:red"] {
    font-size: 12px;
    color: red;
    margin-bottom: 10px;
}

button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
}

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

button:focus {
    outline: none;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}