/* Layout adjustments on top of 98.css */

body {
    margin: 0;
    padding: 24px;
    background-color: #008080;
    font-family: "MS Sans Serif", "Segoe UI", sans-serif;
    min-height: 100vh;
    box-sizing: border-box;
}

main.app-shell {
    display: grid;
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: 16px;
    max-width: 1100px;
    margin: 0 auto;
}

.nav-window .window-body,
.content-window .window-body {
    padding: 16px;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list li + li {
    margin-top: 8px;
}

.nav-list a {
    display: block;
    padding: 6px 10px;
    border: 2px solid #dfdfdf;
    background-color: #ffffff;
    color: #000000;
    text-decoration: none;
    box-shadow: inset -1px -1px #404040, inset 1px 1px #ffffff;
}

.nav-list a:focus,
.nav-list a:hover {
    outline: 2px dotted #000;
    outline-offset: 1px;
}

.nav-list a:active {
    box-shadow: inset 1px 1px #404040, inset -1px -1px #ffffff;
}

.content-window .window-body {
    display: grid;
    gap: 24px;
}

.content-window section {
    display: grid;
    gap: 12px;
}

.content-window h1,
.content-window h2,
.content-window h3 {
    margin: 0;
}

.content-window h1 {
    font-size: 1.5rem;
}

.content-window p {
    margin: 0;
    line-height: 1.5;
    font-size: 1rem;
}

.content-window img {
    width: 100%;
    height: auto;
    border: 1px solid #000;
}

.content-window .callout {
    padding: 12px;
    background-color: #c0c0c0;
    border: 2px solid #ffffff;
    box-shadow: inset -1px -1px #404040, inset 1px 1px #ffffff;
}

.centered {
    text-align: center;
}

.subspan {
    font-weight: 700;
    color: #000080;
}

.footer-note {
    font-size: 0.9rem;
    color: #000;
}

@media (max-width: 960px) {
    main.app-shell {
        grid-template-columns: 1fr;
    }

    .nav-window .window-body {
        display: grid;
        gap: 8px;
    }
}