body, html, h1, h2, p, ul, li {
    margin: 0;
    padding: 0;
}

body {
    background-color: #1a1a1a;
    color: #fff;
    font-family: 'Arial', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
}

header {
    background-color: #111;
    padding: 20px;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    color: #007bff;
}

main {
    padding: 20px;
    text-align: center;
}

#quiz-container {
    background-color: #222;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
    margin-bottom: 20px; 
}

.question {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: #fff;
}

.options label {
    display: block;
    margin: 10px 0;
    color: #fff;
    cursor: pointer;
}

#results {
    margin-top: 20px;
    padding: 20px;
    background-color: #222;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
    color: #fff;
}

#submit {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 15px 30px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.4rem;
}

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

input[type="radio"] {
    margin-right: 10px;
}

#submit {
    display: block;
    margin: 0 auto;
}