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

#main {
    border: 20px solid rgb(129, 93, 220);
    width: 100%;
    padding: 10px;
    height: 100%;
    padding-bottom: 50px;
    min-height: 1000px;
}

nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background-color: navy;
    padding-top: 10px;
    padding-bottom: 10px;
    position: sticky;
    top: 0;
    width: 100%;
    padding-left: 60px;
}

nav button {
    background-color: navy;
    width: 80%;
    padding: 20px;
    border-radius: 30px;
    border: navy;
    font-size: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-weight: bold;
    color: aliceblue;
}

nav button:hover {
    background-color: gold;
}

@media (max-width: 865px) {
    nav button {
        font-size: 15px;
    }
}

@media (max-width: 700px) {
    nav {
        font-size: 12px;
        padding-left: 20px;
    }
}

@media (max-width: 700px) {
    nav {
        display: flex;
        flex-direction: column;
        height: 180px;
        align-items: center;
    }
    nav button {
        height: 33.33%;
        margin: 0 auto;
        align-items: center;
    }
    
    h2 {
        left: 10px;
    }
}

h1 {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    margin-top: 80px;
    font-size: 30px;
}

h3 {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    margin-top: 50px;
    font-size: 25px;
}

p {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    margin-top: 30px;
    font-size: 18px;
}

h2 {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: aliceblue;
    background-color: navy;
    display: inline-block;
    padding: 10px;
    position: fixed;
    text-align: center;
    border-end-start-radius: 20px;
    border-end-end-radius: 20px;
    left: 50%;
    transform: translate(-50%, 0);
    border-top: 5px solid black;
}

h2 span {
    color: gold;
}

section {
    overflow: scroll;
}