/* Responsive layout for the retained school-life topic archive only. */
#boids-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    opacity: .1;
    pointer-events: none;
}

#container {
    position: relative;
    z-index: 1;
    background: transparent;
}

/* Keep retained article links readable on their light and dark backgrounds. */
#content a,
#content a:hover,
#content a:focus-visible {
    color: #7a1419;
    text-decoration: underline;
    text-underline-offset: .15em;
}

footer a,
footer a:hover,
footer a:focus-visible {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: .15em;
}

@media (max-width: 1023px) {
    html,
    body {
        height: auto;
        min-height: 100%;
    }

    #container {
        width: 100%;
        min-width: 0;
    }

    header {
        padding: 8px 10px 0;
    }

    header h1 {
        display: flex;
        align-items: center;
        width: 100%;
        margin: 8px 0 10px;
    }

    header h1 a {
        display: flex;
        align-items: center;
        gap: 8px;
        max-width: 100%;
    }

    #kosyo {
        float: none;
        flex: 0 0 48px;
        width: 48px;
        margin: 0;
    }

    #title {
        width: min(68vw, 320px);
        max-width: calc(100% - 56px);
        height: auto;
    }

    nav.toplink,
    nav.glink {
        width: 100%;
        margin: 6px 0;
        text-align: left;
    }

    nav.toplink ul,
    nav.glink ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 4px;
        font-size: 14px;
    }

    nav.toplink a,
    nav.glink a {
        display: block;
        min-height: 44px;
        padding: 4px 6px;
        box-sizing: border-box;
    }

    nav.toplink li,
    nav.glink li {
        display: inline-block;
        padding: 4px 6px;
    }

    #main-container {
        width: 100%;
        max-width: 960px;
        margin: 0 auto;
        padding: 0 12px 72px;
        box-sizing: border-box;
    }

    .top,
    figure.photo-top {
        width: 100%;
        margin: 0;
    }

    figure.photo-top img {
        display: block;
        width: 100%;
        max-width: 100%;
        height: auto;
    }

    #main-container > article {
        width: 100%;
        max-width: 100%;
        margin: 0 0 16px;
        padding: 14px;
        overflow: visible;
        box-sizing: border-box;
    }

    #content,
    #menu {
        float: none;
        width: 100%;
        min-width: 0;
    }

    #content {
        font-size: 18px;
        overflow-wrap: anywhere;
        line-height: 1.8;
    }

    nav.toplink li,
    nav.glink li,
    nav.toplink a,
    nav.glink a,
    .bread a,
    #main-container #menu aside a {
        font-size: 18px;
        line-height: 1.5;
    }

    .bread a {
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        min-height: 44px;
        box-sizing: border-box;
        overflow-wrap: anywhere;
    }

    #main-container #menu aside li {
        font-size: 18px;
        line-height: 1.5;
        overflow-wrap: anywhere;
    }

    #content h1 {
        font-size: 28px;
        overflow-wrap: anywhere;
    }

    #content h2 {
        font-size: clamp(19px, 5.5vw, 24px);
        line-height: 1.5;
        overflow-wrap: anywhere;
    }

    #content a {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    #content p[align="center"] {
        padding-right: 0;
        padding-left: 0;
    }

    #content figure.photo-center_l {
        width: 100%;
        margin: 8px 0;
        padding: 0;
        box-sizing: border-box;
    }

    #content figure.photo-center_l img,
    #content img,
    #content video {
        display: block;
        width: min(100%, 500px);
        max-width: 100%;
        height: auto;
        margin: 0 auto 8px;
    }

    #content video {
        width: min(100%, 480px);
        border-radius: 8px;
    }

    #content table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
    }

    #main-container #menu aside {
        margin: 20px 0 0;
    }

    #main-container #menu aside ul {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        padding: 0;
    }

    #main-container #menu aside li > a {
        display: block;
        min-width: 0;
        min-height: 44px;
        padding: 10px 8px;
        box-sizing: border-box;
    }

    #main-container #menu aside li {
        min-height: 44px;
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    footer {
        position: relative;
        height: auto;
        min-height: 50px;
        padding: 8px 10px;
        box-sizing: border-box;
    }

    footer p {
        overflow-wrap: anywhere;
    }
}