:root {
    --light: rgb(134, 106, 158);
    --dark: rgb(66, 0, 128);
}

/* Universal Selector */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Element Selectors */
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: lightgray;
}

header {
    width: 100%;
}

nav {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    font-size: 20px;
    color: var(--dark);
    font-weight: bolder;
}

a {
    text-decoration: none;
    color: var(--dark);
}

a:hover,
a:focus {
    cursor: pointer;
    color: var(--light);
}

main {
    display: flex;
    max-width: 700px;
    margin: auto;
    padding: 50px 10px;
    flex-direction: column;
}

section {
    margin: 0;
    text-align: center;
}

section h1 {
    text-align: center;
    font-size: 40px;
}

section p {
    margin: 30px 20px;
}

h2 {
    text-align: center;
    align-items: center;
}

ul {
    list-style-type: none;
    margin: 20px 5px;
    font-size: 20px;
}

li {
    background-color: var(--dark);
    color: white;
    margin: 10px auto;
    width: 70%;
    padding: 8px;
    border-radius: 4px;
}

li:hover {
    cursor: pointer;
    background-color: var(--light);
    color: white;
}

input {
    padding: 2px;
    font-size: 16px;
}

/* ID Selectors */
#start-button {
    padding: 4px 30px;
    border-radius: 4px;
    background-color: var(--dark);
    color: white;
    font-size: 20px;
}

#start-button:hover,
#start-button:focus {
    cursor: pointer;
    background-color: var(--light);
}

#your-score {
    margin: 20px;
}

#submit {
    padding: 2px 6px;
    border-radius: 4px;
    background-color: var(--dark);
    color: white;
}

#submit:hover,
#submit:focus {
    cursor: pointer;
    background-color: var(--light);
}

#results {
    font-style: italic;
    padding: 5px;
}

/* Responsive Design */
@media screen and (max-width: 992px) {
    main {
        width: 75%;
    }
}
  
@media screen and (max-width: 768px) {
    main {
        width: 100%;
    }
}