html {
    font-size: 100%;
}
main, footer {
    max-width: 65rem;
    margin: 0 auto;
    padding: 0 2rem;
}

#mainnav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;

    margin: 0;
    padding: 0;

    list-style: none;
}

#mainnav a {
    display: block;

    padding: 0.75rem 1rem;

    color: #333;
    text-decoration: none;
    font-weight: 600;

    border-radius: 0.5rem;

    transition:
            background-color 0.2s ease,
            color 0.2s ease;
}

#mainnav a:hover {
    color: #fff;
    background-color: #333;
}

#mainnav a:focus-visible {
    outline: 3px solid #e0a000;
    outline-offset: 2px;
}

@media (max-width: 600px) {
    #mainnav ul {
        gap: 0.25rem;
    }

    #mainnav a {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
}

section {
    padding: 4rem 2rem;
}

section:nth-of-type(even) {
    background-color: #f5f3ee;
}

#hero {
    padding: 0 2rem;
}

#hero img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
}

.event-archive {
    margin-top: 2rem;
}

.event-archive summary {
    font-weight: bold;
}

main {
    padding-bottom: 12rem;
}