:root {
    --text-color: rgb(240, 240, 240);
    --link-text-color: rgb(160, 160, 160);

    --menu-height: 64px;
    --menu-item-height: 48px;
    --menu-item-spacing: 20px;
    --menu-bg-color: rgb(28, 28, 28);
    --menu-active-color: rgb(40, 40, 40);
    --menu-mobile-bg-color: rgb(20, 20, 20);
    --menu-shadow: 0px 0px 12px rgb(0, 0, 0);
    --menu-font-size: 16px;

    --content-max-width: 840px;
    --content-margin: 32px;
    --content-bg-color: rgb(40, 40, 40);

    --main-separator-height: 2px;
    --main-separator-margin: 32px;
    --main-paragraph-margin: 16px;

    --sc64-logo-width: 172px;

    --sponsor-buttons-height: 32px;

    --footer-padding: 16px 32px 16px 32px;
    --footer-font-size: 14px;
}

html,
body {
    height: 100%;
}

html {
    scroll-padding-top: calc(var(--menu-height) + var(--content-margin));
}

body {
    display: flex;
    flex-direction: column;
    margin: 0;
    color: var(--text-color);
    background-color: var(--content-bg-color);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

a {
    text-decoration: none;
}

a:link,
a:visited {
    color: var(--link-text-color);
}

a:active,
a:hover {
    color: var(--text-color);
}

.menu-container {
    position: fixed;
    top: 0;
    display: flex;
    justify-content: center;
    width: 100%;
    background-color: var(--menu-bg-color);
    box-shadow: var(--menu-shadow);
}

.menu-bar {
    display: flex;
    flex-flow: row;
    margin: 0 var(--content-margin) 0 var(--content-margin);
    width: 100%;
    max-width: var(--content-max-width);
    font-size: var(--menu-font-size);
}

.menu-bar>.menu-buttons {
    display: flex;
    align-items: center;
    height: var(--menu-height);
}

.menu-bar>.menu-buttons a {
    height: var(--menu-item-height);
}

.menu-bar>.menu-buttons img {
    height: var(--menu-item-height);
}

.menu-bar>.menu-buttons>button {
    display: none;
}

.menu-bar>menu {
    display: flex;
    margin: 0;
    margin-left: var(--content-margin);
    padding: 0;
}

.menu-bar>menu>li {
    list-style: none;
}

.menu-bar>menu>li:hover {
    background-color: var(--menu-active-color);
}

.menu-bar>menu>li a {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 var(--menu-item-spacing);
}

.menu-bar menu>li.active a {
    color: var(--text-color);
    font-weight: 600;
}

@media only screen and (max-width: 800px) {
    .menu-bar {
        flex-flow: row wrap;
        margin: 0;
    }

    .menu-bar>.menu-buttons {
        width: 100%;
        margin: 0 var(--content-margin) 0 var(--content-margin);
    }

    .menu-bar>.menu-buttons>.menu-button {
        display: flex;
        flex-flow: column;
        justify-content: center;
        align-items: center;
        width: var(--menu-item-height);
        height: var(--menu-item-height);
        margin-left: auto;
        cursor: pointer;
    }

    .menu-bar>.menu-buttons>.menu-button>.menu-button-line {
        width: 28px;
        height: 3px;
        background-color: var(--link-text-color);
        margin: 3px 0;
        border-radius: 2px;
    }

    .menu-bar>.menu-buttons>.menu-button.active>.menu-button-line {
        background-color: var(--text-color);
    }

    .menu-bar>menu {
        flex-flow: column;
        margin: 0;
        width: 100%;
        background-color: var(--menu-mobile-bg-color);
    }

    .menu-bar>menu>li {
        height: var(--menu-item-height);
        padding: 0;
        border-bottom: 1px solid var(--menu-active-color);
    }

    .menu-bar>menu>li:last-child {
        border-bottom-width: 0px;
    }

    .menu-bar>menu>li.active {
        background-color: var(--menu-active-color);
    }

    .menu-bar>menu>li>a {
        display: flex;
        align-items: center;
        height: 100%;
        padding: 0 var(--content-margin);
    }

    .menu-bar>menu.mobile-hidden {
        display: none;
    }
}

.main-container {
    display: flex;
    justify-content: center;
    margin-top: var(--menu-height);
    scroll-padding-top: var(--menu-height);
    width: 100%;
}

main {
    display: flex;
    flex-flow: column;
    margin: var(--content-margin);
    width: 100%;
    max-width: var(--content-max-width);
    font-size: var(--menu-font-size);
}

main>h1 {
    margin: 0;
}

main p {
    margin: var(--main-paragraph-margin) 0;
}

main section>img.sc64-logo {
    float: left;
    width: var(--sc64-logo-width);
    padding: var(--main-paragraph-margin);
    padding-left: 0;
}

div.pcb-images {
    display: flex;
    flex-wrap: wrap;
    gap: var(--main-paragraph-margin);
    margin: var(--main-paragraph-margin) 0;
}

div.pcb-images img {
    flex-grow: 1;
    flex-basis: 0;
    width: 100%;
    min-width: calc(var(--content-max-width) / 3.2);
}

div.sponsor-buttons {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin: var(--main-paragraph-margin) 0;
}

div.sponsor-buttons iframe,
div.sponsor-buttons a {
    height: var(--sponsor-buttons-height);
    padding: var(--main-paragraph-margin) var(--main-paragraph-margin) 0 0;
}

main .separator {
    height: var(--main-separator-height);
    background-color: var(--text-color);
    margin: var(--main-separator-margin) 0;
}

iframe.bom {
    display: flex;
    flex-grow: 1;
    margin-top: var(--menu-height);
    border: none;
}

footer {
    display: flex;
    flex-flow: column;
    align-self: center;
    align-items: center;
    margin-top: auto;
    padding: var(--footer-padding);
    font-size: var(--footer-font-size);
}