body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    display: flex;
    justify-content: center;
    padding: 40px;
}
.container {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
h1 {
    text-align: center;
    margin-bottom: 20px;
}
form {
    display: flex;
    flex-direction: column;
}
label {
    margin-top: 10px;
}
input, select, button {
    padding: 10px;
    margin-top: 5px;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 1rem;
}
button {
    background: #4cafef;
    color: #fff;
    border: none;
    margin-top: 15px;
    cursor: pointer;
}
button:hover {
    background: #3498db;
}
#results {
    margin-top: 20px;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 8px;
}