/* ---------------------------------------------------------------------------
   Fully expanded sidebar navigation

   `collapse_navigation: False` makes Sphinx emit the complete toctree into
   every page, but the RTD theme still hides most of it in CSS, so the nav
   only opens along the branch you are currently on. See
   https://github.com/readthedocs/sphinx_rtd_theme/issues/455

   Three theme rules do the hiding:
     .wy-menu-vertical li ul                            { display: none }
     .wy-menu-vertical .toctree-lN.current .toctree-lM>ul { display: none }
     .wy-menu-vertical li.current ul                    { display: block }

   The second is 4 classes deep, so !important is the honest way to beat it
   without duplicating that whole selector chain.
   --------------------------------------------------------------------------- */
.wy-menu-vertical li ul {
    display: block !important;
}

/* With nothing left to expand, the disclosure arrows are misleading: clicking
   one would appear to do nothing. */
.wy-menu-vertical li button.toctree-expand {
    display: none !important;
}

/* The theme paints nested entries #404040 (near-black). That only works
   because it shows them exclusively on the current branch, where the
   background is light. Now that every branch is open, off-branch entries sit
   on the dark sidebar and that colour is illegible — so give them the same
   light-on-dark treatment the top-level entries get.

   `.wy-menu-vertical li.current a` ties with this selector on specificity
   (both 2 classes + 2 elements), and custom.css loads later, so this would
   otherwise also repaint the current branch — where the background *is*
   light. The rule below puts the dark text back there. */
.wy-menu-vertical li.toctree-l2 a,
.wy-menu-vertical li.toctree-l3 a,
.wy-menu-vertical li.toctree-l4 a {
    color: #d9d9d9;
}

.wy-menu-vertical li.current li.toctree-l2 a,
.wy-menu-vertical li.current li.toctree-l3 a,
.wy-menu-vertical li.current li.toctree-l4 a {
    color: #404040;
}

/* Indent each level and taper the size, so the hierarchy still reads at a
   glance without the disclosure arrows to mark it. */
.wy-menu-vertical li.toctree-l2 a {
    padding-left: 2.427em;
}

.wy-menu-vertical li.toctree-l3 a {
    padding-left: 3.5em;
    font-size: 0.85em;
}

.wy-menu-vertical li.toctree-l4 a {
    padding-left: 4.5em;
    font-size: 0.8em;
}

/* The RTD theme caps content width at 800px, which is cramped for the
   parcellation tables, --help output and the wider figures. */
.wy-nav-content {
    max-width: 1000px;
}

/* Keep wide content (help output, tables, diagrams) inside its own scroll
   region rather than forcing the page to scroll horizontally. */
.rst-content div[class^='highlight'] pre,
.rst-content table.docutils {
    overflow-x: auto;
}

/* sphinx-design cards inherit an RTD margin that double-spaces the grids. */
.rst-content .sd-card {
    margin-bottom: 0;
}

.rst-content .sd-card .sd-card-title {
    font-weight: 600;
}

/* Definition lists are used heavily for parameter descriptions; give the term
   enough weight to scan against the body text. */
.rst-content dl:not(.docutils) > dt,
.rst-content dl.simple > dt {
    font-weight: 600;
}