/* Systems Manual: reader and editor styles. App-specific; theme.css and site.css stay untouched.
   Colours come only from Bootstrap / theme tokens so light and dark mode both work. */

/* Workaround for a template bug: theme.css sets --bs-heading-color only for light mode, so every heading
   stays black in dark mode. Remove once MIS-STARTER-TEMPLATE's theme.css defines it in its dark block. */
[data-bs-theme="dark"] {
    --bs-heading-color: var(--bs-emphasis-color);
}

/* FocusOnNavigate moves focus to the page's h1 for screen readers; no visible outline needed for that. */
h1:focus { outline: none; }

/* ---------- Sidebar: systems grouped by department ---------- */
.systems-nav-group { width: 100%; }

.systems-nav-heading {
    display: flex;
    align-items: center;
    list-style: none;
    cursor: pointer;
    padding: .4rem .75rem;
    margin-top: .15rem;
    border-radius: var(--bs-border-radius);
    color: var(--bs-secondary-color);
    font-size: .78rem;
    font-weight: 600;
}

.systems-nav-heading::-webkit-details-marker { display: none; }
.systems-nav-heading:hover { background: var(--bs-secondary-bg); color: var(--bs-body-color); }
.systems-nav-chevron { font-size: .7rem; transition: transform .15s ease; }
.systems-nav-group:not([open]) .systems-nav-chevron { transform: rotate(-90deg); }

/* ---------- Landing page ---------- */
.landing-hero {
    position: relative;
    overflow: hidden;
    padding: 3rem 2rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    background:
        radial-gradient(circle at 85% 20%, color-mix(in srgb, var(--bs-primary) 22%, transparent) 0, transparent 45%),
        radial-gradient(circle at 10% 110%, color-mix(in srgb, var(--bs-primary) 14%, transparent) 0, transparent 40%),
        var(--bs-tertiary-bg);
}

@media (min-width: 992px) {
    .landing-hero { padding: 4rem 3.5rem; }
}

.landing-hero-art {
    position: absolute;
    right: 3rem;
    top: 50%;
    transform: translateY(-50%) rotate(-8deg);
    font-size: 15rem;
    line-height: 1;
    color: var(--bs-primary);
    opacity: .12;
    pointer-events: none;
}

.landing-hero-body { position: relative; max-width: 44rem; }

.landing-eyebrow {
    display: inline-flex;
    align-items: center;
    padding: .3rem .75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--bs-primary-border-subtle);
    border-radius: 50rem;
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .02em;
}

.landing-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1.1;
    margin-bottom: .75rem;
}

.landing-lead {
    font-size: 1.15rem;
    color: var(--bs-secondary-color);
    margin-bottom: 1.75rem;
}

.landing-search {
    position: relative;
    display: flex;
    align-items: center;
    padding: .375rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 50rem;
    background: var(--bs-body-bg);
    box-shadow: var(--bs-box-shadow);
    transition: border-color .15s ease, box-shadow .15s ease;
}

.landing-search:focus-within {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 .25rem color-mix(in srgb, var(--bs-primary) 25%, transparent);
}

.landing-search-icon {
    margin: 0 .25rem 0 1rem;
    font-size: 1.15rem;
    color: var(--bs-secondary-color);
}

.landing-search-input,
.landing-search-input:focus {
    flex-grow: 1;
    border: 0;
    background: transparent;
    box-shadow: none;
    font-size: 1.1rem;
    padding: .6rem .75rem;
}

.landing-search-btn {
    flex-shrink: 0;
    padding: .6rem 1.6rem;
    border-radius: 50rem;
    background: var(--bs-primary);
    border-color: var(--bs-primary);
    color: var(--bs-body-bg);
    font-weight: 600;
}

.landing-search-btn:hover,
.landing-search-btn:focus-visible {
    background: var(--bs-primary-text-emphasis);
    border-color: var(--bs-primary-text-emphasis);
    color: var(--bs-body-bg);
}

.landing-chips {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .4rem;
    margin-top: 1rem;
}

.landing-chip {
    padding: .25rem .7rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 50rem;
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    font-size: .825rem;
    text-decoration: none;
}

.landing-chip:hover { border-color: var(--bs-primary); color: var(--bs-primary-text-emphasis); }

.landing-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--bs-border-color);
}

.landing-stats div { display: flex; flex-direction: column; }
.landing-stats strong { font-size: 1.5rem; font-weight: 700; color: var(--bs-emphasis-color); line-height: 1.2; }
.landing-stats span { font-size: .8rem; color: var(--bs-secondary-color); text-transform: uppercase; letter-spacing: .04em; }

.landing-group-heading {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin: 1.25rem 0 .85rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid var(--bs-border-color);
}

.landing-group-heading .bi { color: var(--bs-primary-text-emphasis); font-size: 1.1rem; }

/* System cards: equal height, description clamped, first guides listed, whole card clickable */
.system-card {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.5rem;
    border: 1px solid var(--bs-border-color);
    border-top: 3px solid var(--bs-primary);
    border-radius: .75rem;
    background: var(--bs-body-bg);
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.system-card:hover,
.system-card:focus-within {
    transform: translateY(-3px);
    box-shadow: var(--bs-box-shadow);
    border-color: var(--bs-primary);
}

.system-card-empty { border-top-color: var(--bs-border-color); }
.system-card-empty .system-card-icon { background: var(--bs-tertiary-bg); color: var(--bs-secondary-color); }

.system-card-icon {
    width: 3rem;
    height: 3rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: .75rem;
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-size: 1.4rem;
}

.system-card-text {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 1rem;
    color: var(--bs-secondary-color);
    font-size: .9rem;
}

.system-card-links {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
    font-size: .85rem;
}

.system-card-links li {
    padding: .35rem 0;
    border-top: 1px dashed var(--bs-border-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--bs-body-color);
}

.system-card-links li i { color: var(--bs-secondary-color); }

.system-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: .75rem;
    border-top: 1px solid var(--bs-border-color);
    color: var(--bs-primary-text-emphasis);
    font-size: .875rem;
    font-weight: 600;
}

.system-card:hover .system-card-footer .bi-arrow-right { transform: translateX(4px); }
.system-card-footer .bi-arrow-right { transition: transform .15s ease; }

/* Most read / recently updated lists */
.landing-list {
    border: 1px solid var(--bs-border-color);
    border-radius: .75rem;
    background: var(--bs-body-bg);
    overflow: hidden;
}

.landing-list-item {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding: .8rem 1rem;
    color: var(--bs-body-color);
    text-decoration: none;
}

.landing-list-item + .landing-list-item { border-top: 1px solid var(--bs-border-color); }
.landing-list-item:hover { background: var(--bs-secondary-bg); color: var(--bs-body-color); }

.landing-rank {
    width: 2rem;
    height: 2rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-weight: 700;
    font-size: .85rem;
}

/* ---------- Library and space home ---------- */
.manual-hero {
    background: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius-lg);
}

.manual-tile {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.25rem;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius-lg);
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    text-decoration: none;
    transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}

.manual-tile:hover,
.manual-tile:focus-visible {
    border-color: var(--bs-primary);
    color: var(--bs-body-color);
    transform: translateY(-2px);
    box-shadow: var(--bs-box-shadow-sm);
}

.manual-tile-icon {
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--bs-border-radius);
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-size: 1.25rem;
}

/* ---------- Article reader: tree | content | on this page ---------- */
.manual-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr) 210px;
    gap: 2rem;
    align-items: start;
}

.manual-sticky {
    position: sticky;
    top: calc(56px + 1rem);
    max-height: calc(100vh - 56px - 2rem);
    overflow-y: auto;
}

@media (max-width: 1399.98px) {
    .manual-layout { grid-template-columns: 230px minmax(0, 1fr); }
    .manual-toc { display: none; }
}

@media (max-width: 991.98px) {
    .manual-layout { grid-template-columns: minmax(0, 1fr); }
    .manual-tree-desktop { display: none; }
}

.manual-tree summary {
    list-style: none;
    cursor: pointer;
    padding: .35rem .5rem;
    border-radius: var(--bs-border-radius);
    font-weight: 600;
    font-size: .875rem;
    color: var(--bs-emphasis-color);
}

.manual-tree summary::-webkit-details-marker { display: none; }
.manual-tree summary:hover { background: var(--bs-secondary-bg); }
.manual-tree details > summary .manual-chevron { transition: transform .15s ease; }
.manual-tree details[open] > summary .manual-chevron { transform: rotate(90deg); }

.manual-tree-link {
    display: block;
    padding: .3rem .6rem;
    margin-left: .5rem;
    border-left: 2px solid var(--bs-border-color);
    color: var(--bs-secondary-color);
    text-decoration: none;
    font-size: .875rem;
}

.manual-tree-link:hover { color: var(--bs-body-color); background: var(--bs-secondary-bg); }

.manual-tree-link.active {
    border-left-color: var(--bs-primary);
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-weight: 600;
}

.manual-tree-subtitle {
    margin: .5rem 0 .15rem 1rem;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: var(--bs-secondary-color);
}

.manual-tree-link.nested { margin-left: 1.25rem; }

.manual-toc-link {
    display: block;
    padding: .2rem 0 .2rem .75rem;
    border-left: 2px solid var(--bs-border-color);
    color: var(--bs-secondary-color);
    text-decoration: none;
    font-size: .825rem;
}

.manual-toc-link.level-3 { padding-left: 1.5rem; }
.manual-toc-link:hover { color: var(--bs-body-color); }
.manual-toc-link.active { border-left-color: var(--bs-primary); color: var(--bs-primary-text-emphasis); font-weight: 600; }

/* ---------- Rendered article content ---------- */
.manual-content {
    max-width: 52rem;
    line-height: 1.7;
}

.manual-content h2 {
    margin-top: 2.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bs-border-color);
    font-size: 1.45rem;
    font-weight: 600;
    scroll-margin-top: 72px;
}

.manual-content h3 {
    margin-top: 1.75rem;
    font-size: 1.15rem;
    font-weight: 600;
    scroll-margin-top: 72px;
}

.manual-content > h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.manual-content li { margin-bottom: .25rem; }

.manual-content img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
}

.manual-content pre {
    padding: 1rem;
    background: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    overflow-x: auto;
}

.manual-content :not(pre) > code {
    padding: .1rem .35rem;
    background: var(--bs-tertiary-bg);
    border-radius: var(--bs-border-radius-sm);
    color: var(--bs-emphasis-color);
}

.manual-content blockquote {
    padding-left: 1rem;
    border-left: 4px solid var(--bs-border-color);
    color: var(--bs-secondary-color);
}

.manual-content table { font-size: .925rem; }

/* Callouts: ::: note / ::: tip / ::: warning / ::: danger (Markdig custom containers) */
.manual-content .note,
.manual-content .info,
.manual-content .tip,
.manual-content .warning,
.manual-content .danger {
    margin: 1.25rem 0;
    padding: .85rem 1rem;
    border-left: 4px solid var(--bs-info);
    border-radius: var(--bs-border-radius);
    background: var(--bs-info-bg-subtle);
    color: var(--bs-info-text-emphasis);
}

.manual-content .tip { border-left-color: var(--bs-success); background: var(--bs-success-bg-subtle); color: var(--bs-success-text-emphasis); }
.manual-content .warning { border-left-color: var(--bs-warning); background: var(--bs-warning-bg-subtle); color: var(--bs-warning-text-emphasis); }
.manual-content .danger { border-left-color: var(--bs-danger); background: var(--bs-danger-bg-subtle); color: var(--bs-danger-text-emphasis); }
.manual-content .note > :last-child,
.manual-content .info > :last-child,
.manual-content .tip > :last-child,
.manual-content .warning > :last-child,
.manual-content .danger > :last-child { margin-bottom: 0; }

/* ---------- Previous / next ---------- */
.manual-pager-card {
    display: block;
    height: 100%;
    padding: .9rem 1.1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius-lg);
    color: var(--bs-body-color);
    text-decoration: none;
}

.manual-pager-card:hover { border-color: var(--bs-primary); color: var(--bs-body-color); }

/* ---------- Markdown editor ---------- */
.manual-editor-textarea {
    min-height: 32rem;
    font-family: var(--bs-font-monospace);
    font-size: .85rem;
    line-height: 1.6;
}

.manual-preview {
    min-height: 32rem;
    padding: 1.25rem;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    background: var(--bs-body-bg);
}

/* Theme-aware error row (Bootstrap's table-danger is a fixed light pink that clashes in dark mode) */
.manual-row-error > * {
    background-color: var(--bs-danger-bg-subtle);
    --bs-table-bg: var(--bs-danger-bg-subtle);
    --bs-table-bg-state: var(--bs-danger-bg-subtle);
}

.manual-dropzone {
    display: block;
    padding: 2.5rem 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px dashed var(--bs-border-color);
    border-radius: .75rem;
    background: var(--bs-tertiary-bg);
    transition: border-color .15s ease, background .15s ease;
}

.manual-dropzone:hover,
.manual-dropzone:focus-within {
    border-color: var(--bs-primary);
    background: var(--bs-primary-bg-subtle);
}

.manual-media-thumb {
    width: 100%;
    height: 140px;
    object-fit: contain;
    background: var(--bs-tertiary-bg);
    border-bottom: 1px solid var(--bs-border-color);
}