* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f9f9f9;
}

.container {
    max-width: 500px;
    margin: 40px auto;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

label {
    display: block;
    margin-top: 10px;
}

input,
select,
button {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

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

.results {
    margin-top: 20px;
}

.results ul {
    list-style: none;
    padding-left: 0;
}

.results li {
    margin-bottom: 8px;
}

.hidden {
    display: none;
}

@media screen and (max-width: 600px) {
    .container {
        margin: 20px;
        padding: 15px;
    }
}