body {
    font-family: Arial, sans-serif;
    background-color: #dceefb;
    margin: 0;
    padding: 0;
}

.container {
    width: 450px;
    margin: 60px auto;
    padding: 30px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

h1 {
    text-align: center;
    color: #2c3e50;
}

p {
    text-align: center;
    color: #555;
}

label {
    display: block;
    margin-top: 15px;
    margin-bottom: 5px;
    font-weight: bold;
    color: #34495e;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    border: 1px solid #aaa;
    border-radius: 5px;
    font-size: 15px;
}

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

input[type="submit"] {
    width: 100%;
    margin-top: 25px;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #2980b9;
}

#message {
    margin-top: 15px;
    color: green;
    font-weight: bold;
}