/* The header, notices and dialog shared by the reader and the pages the server renders.
   Every class is prefixed so it can sit next to Bootstrap. Mobile first: the base rules are
   the phone layout and the wider one is added at 768px. */

:root {
    --bg: #fff;
    --fg: #212529;
    --muted: #5c636a;
    --accent: #4a63d8;
    --on-accent: #fff;
    --hi: #d11a1a;
    --line: #dee2e6;
    --control: #868e96;
    --bar: #f8f9fa;
    color-scheme: light;
}

:root {
    --tap: 2.75rem;
    --radius: .375rem;
    --radius-lg: .5rem;
    --radius-pill: 1rem;
    --scrim: rgb(0 0 0 / .5);
    --shadow: 0 .5rem 1rem rgb(0 0 0 / .15);
    --z-search: 5;
    --z-fab: 10;
    --z-panel: 20;
    /* above Bootstrap's modals */
    --z-toast: 1090;
}

:root[data-bs-theme="dark"] {
    --bg: #000;
    --fg: #dee2e6;
    --muted: #9ca3af;
    --accent: #7793f3;
    --on-accent: #000;
    --hi: #ff6b6b;
    --line: #343a40;
    --control: #6c757d;
    --bar: #212529;
    color-scheme: dark;
}

#site-header {
    min-height: 3.5rem;
    background: var(--bar);
}

.sb-i {
    width: 1.25em;
    height: 1.25em;
    fill: currentColor;
    vertical-align: -.25em;
}

.sb-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .25rem 1rem;
    padding: .25rem 1rem;
    min-height: 3.5rem;
    background: var(--bar);
    color: var(--fg);
}

.sb-bar a,
.sb-bar a:hover {
    text-decoration: none;
}

.sb-bar a {
    color: var(--accent);
}

.sb-bar a:hover,
.sb-bar a[aria-current] {
    color: var(--hi);
}

.sb-bar a[aria-current] {
    text-decoration: underline;
}

.sb-brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    min-height: var(--tap);
    font-size: 1.25rem;
    margin-right: .5rem;
}

.sb-brand img {
    width: 30px;
    height: 30px;
}

.sb-btn {
    font: inherit;
    line-height: 1.5;
    color: inherit;
    background: none;
    border: 1px solid var(--control);
    border-radius: var(--radius);
    min-width: var(--tap);
    min-height: var(--tap);
    padding: .25rem .75rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.sb-btn:hover {
    border-color: var(--accent);
}

.sb-ghost {
    border-color: transparent;
    color: var(--muted);
}

.sb-btn[aria-pressed="true"] {
    border-color: var(--accent);
    color: var(--accent);
}

.sb-bar .sb-btn {
    color: inherit;
}

.sb-btn.sb-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
}

.sb-bar :focus-visible,
.sb-toast :focus-visible,
.sb-dialog :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.sb-btn.sb-burger {
    margin-left: auto;
}

.sb-menu {
    display: none;
    flex-direction: column;
    align-items: stretch;
    flex-basis: 100%;
    gap: 0;
}

.sb-menu.open {
    display: flex;
}

.sb-menu > a,
.sb-dd > summary {
    display: flex;
    align-items: center;
    min-height: var(--tap);
    padding: 0 .5rem;
}

.sb-menu > .sb-btn {
    margin: .25rem 0;
}

.sb-gap {
    display: none;
}

.sb-dd {
    position: relative;
}

.sb-dd > summary {
    list-style: none;
    cursor: pointer;
    color: var(--accent);
}

.sb-dd > summary::-webkit-details-marker {
    display: none;
}

.sb-dd > summary::after {
    content: " \25BE";
    white-space: pre;
}

.sb-dd[open] > summary,
.sb-dd > summary:hover {
    color: var(--hi);
}

.sb-panel {
    z-index: var(--z-panel);
    min-width: 12rem;
    padding: .25rem 0;
    background: var(--bar);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
}

.sb-panel > * {
    display: flex;
    align-items: center;
    gap: .25rem;
    min-height: var(--tap);
    padding: 0 1rem;
}

.sb-panel a,
.sb-panel .sb-link {
    text-align: left;
    border: 0;
    background: none;
    font: inherit;
    color: var(--accent);
    cursor: pointer;
}

.sb-panel label {
    justify-content: space-between;
    gap: 1rem;
}

.sb-panel select,
.sb-panel input[type="number"] {
    font: inherit;
    width: 8rem;
    min-height: var(--tap);
    padding: 0 .75rem;
    color: var(--fg);
    background: var(--bg);
    border: 1px solid var(--control);
    border-radius: var(--radius);
}

.sb-panel input[type="checkbox"] {
    width: 1.5rem;
    height: 1.5rem;
}

.sb-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .5rem;
    padding-block: .5rem;
}

.sb-row .sb-btn {
    width: 100%;
}

.sb-meta {
    color: var(--muted);
    justify-content: space-between;
}

.sb-sep {
    min-height: 0;
    padding: 0;
    border-top: 1px solid var(--line);
    margin: .5rem 0;
}

.sb-toasts {
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: .5rem;
    align-items: center;
    pointer-events: none;
}

.sb-toast {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .5rem 1rem;
    background: var(--fg);
    color: var(--bg);
    border-radius: var(--radius);
    pointer-events: auto;
}

.sb-toast-error,
.sb-toast-warning {
    border-left: .4rem solid var(--hi);
}

.sb-toast .sb-btn {
    color: inherit;
}

.sb-dialog {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--bg);
    color: var(--fg);
    text-align: center;
    width: min(34rem, calc(100vw - 1rem));
    max-height: calc(100vh - 1rem);
    padding: 1.5rem;
}

.sb-dialog img {
    display: block;
    width: min(28rem, 100%, 60vh);
    height: auto;
    margin: 1rem auto;
}

.sb-dialog a {
    overflow-wrap: anywhere;
}

.sb-dialog::backdrop {
    background: var(--scrim);
}

@media (min-width: 768px) {
    .sb-btn.sb-burger {
        display: none;
    }

    .sb-menu {
        display: flex;
        flex: 1;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        flex-basis: auto;
        gap: .25rem .75rem;
    }

    .sb-menu > .sb-btn {
        margin: 0;
    }

    .sb-gap {
        display: block;
        margin-left: auto;
    }

    .sb-panel {
        position: absolute;
        right: 0;
        min-width: 18rem;
        margin-top: .25rem;
        padding: .5rem 0;
        box-shadow: var(--shadow);
    }
}