/* ==========================================================================
site-navigation.css — JS-free navigation layer (2026-07)
IMPORTANT: This file is linked DIRECTLY from the master page via a
plain tag. It is deliberately NOT the master stylesheet, so Flare's
CSS processing (ResolveCssVariables etc.) never touches it.
Target location in the project:
Content/Resources/Stylesheets/site-navigation.css
Do NOT merge this into Styles.css.
Requires evergreen browsers (Chrome/Edge/Firefox/Safari ~2023+).
========================================================================== */
/* --------------------------------------------------------------------------
1) Smooth scrolling + sticky-header anchor offset (replaces old JS scroll)
-------------------------------------------------------------------------- */
html {
scroll-behavior: smooth;
/* Keep anchor targets clear of the fixed top bar (100px) + breadcrumb
header (84px). scroll-padding on the root works for EVERY anchor jump,
regardless of the target element. */
scroll-padding-top: 210px;
}
@media (prefers-reduced-motion: reduce) {
html {
scroll-behavior: auto;
}
}
/* --------------------------------------------------------------------------
2) TOC toggle (FAB) via checkbox + :has()
-------------------------------------------------------------------------- */
#toc-toggle {
appearance: none;
-webkit-appearance: none;
margin: 0;
cursor: pointer;
display: inline-block;
}
#toc-toggle:focus-visible {
outline: 2px solid #4e9af1;
outline-offset: 2px;
}
/* Lift the TOC toggle above the Cookiebot consent widget, which is injected
at runtime at the bottom-left corner (#CookiebotWidget, ~48px tall at
bottom:10px). We move OUR button instead of the widget: the widget is a
compliance requirement and its internals may change with updates.
(If you ever prefer to move the widget instead, this would work:
div#CookiebotWidget { bottom: 70px !important; } ) */
#toc-toggle {
bottom: max(72px, env(safe-area-inset-bottom) + 44px);
}
/* Desktop: unchecked = sidebar visible (default), checked = collapsed */
@media (min-width: 901px) {
#toc-toggle {
background-image: url('../Images/icons/icon-toc-close.svg');
}
html:has(#toc-toggle:checked) #toc-toggle {
background-image: url('../Images/icons/icon-toc-open.svg');
}
html:has(#toc-toggle:checked) {
--sidebar-width: 0px;
--sidebar-border: 0px;
--content-offset: 0px;
}
html:has(#toc-toggle:checked) #toc-sidebar {
display: none !important;
}
html:has(#toc-toggle:checked) body > .content-header {
left: 0 !important;
}
html:has(#toc-toggle:checked) body .main-content {
margin-left: 0 !important;
margin-right: 0 !important;
width: 100% !important;
inline-size: 100% !important;
max-width: none !important;
max-inline-size: none !important;
padding-left: clamp(12px, 20px, 24px) !important;
padding-right: clamp(12px, 20px, 24px) !important;
box-sizing: border-box !important;
}
html:has(#toc-toggle:checked) body #mc-main-content {
width: 100% !important;
max-width: 1200px !important;
margin-left: 0 !important;
margin-right: 0 !important;
box-sizing: border-box !important;
}
html:has(#toc-toggle:checked) body #doc-breadcrumbs {
margin-left: 0 !important;
margin-right: 0 !important;
width: min(100%, 1200px) !important;
max-width: 1200px !important;
box-sizing: border-box !important;
}
}
/* Mobile: unchecked = sidebar hidden (default), checked = overlay visible.
Content always uses full width. */
@media (max-width: 900px) {
#toc-toggle {
background-image: url('../Images/icons/icon-toc-open.svg');
}
html:has(#toc-toggle:checked) #toc-toggle {
background-image: url('../Images/icons/icon-toc-close.svg');
}
#toc-sidebar {
display: none !important;
}
html:has(#toc-toggle:checked) #toc-sidebar {
display: block !important;
}
html body .main-content {
margin-left: 0 !important;
margin-right: 0 !important;
width: 100% !important;
inline-size: 100% !important;
max-width: none !important;
max-inline-size: none !important;
padding-left: clamp(12px, 20px, 24px) !important;
padding-right: clamp(12px, 20px, 24px) !important;
box-sizing: border-box !important;
}
html body > .content-header {
left: 0 !important;
}
html body #doc-breadcrumbs {
padding-right: clamp(12px, 20px, 24px) !important;
}
}
/* --------------------------------------------------------------------------
3) Static sidebar TOC (injected by postbuild_static_toc.py)
-------------------------------------------------------------------------- */
.static-toc ul {
list-style: none;
margin: 0;
padding: 0;
}
.static-toc li {
list-style: none;
margin: 3px 0;
}
.static-toc > ul > li {
margin: 6px 0;
}
.static-toc ul ul {
padding-left: 12px;
}
.static-toc a {
display: block;
padding: 2px 0;
line-height: 1.3;
color: inherit;
text-decoration: none;
overflow-wrap: break-word;
}
.static-toc a:hover,
.static-toc a:focus-visible {
text-decoration: underline;
}
.static-toc a[aria-current="page"] {
color: #0062cc;
font-weight: 600;
}
/* Hierarchy scaling (matches previous .menu behavior) */
.static-toc ul ul a {
font-size: 0.85em !important;
}
.static-toc ul ul ul a {
font-size: 0.80em !important;
}
/* Branches: details/summary with custom triangles */
.static-toc summary {
list-style: none;
display: flex;
align-items: flex-start;
gap: 6px;
cursor: pointer;
}
.static-toc summary::-webkit-details-marker {
display: none;
}
.static-toc summary::before {
content: "\25b6";
color: #666;
font-size: 0.85em;
line-height: 1.6;
flex: 0 0 auto;
}
.static-toc details[open] > summary::before {
content: "\25bc";
}
.static-toc summary a {
flex: 1 1 auto;
}
/* --------------------------------------------------------------------------
4) Quick Navigation (mini-TOC panel) via checkbox + :has()
-------------------------------------------------------------------------- */
/* Visually hidden checkbox; the