fix toolbar sticks below navbar instead of overlapping it

Move the toolbar to top: var(--nav-height) with z-index: 9 (below nav's z-index: 10) so it sits directly under the navbar without hiding the nav links. Both share the black background for visual continuity.

Commit
d34a0a324a6989ffe44803d1e71225475de74bc8
Author
Marius Peter <dev@marius-peter.com>
Author date
Committer
Marius Peter <dev@marius-peter.com>
Committer date
lib/static/styles.css
index 84c91d0d..0791a5be 100644..100644
@@ -513,8 +513,8 @@
513 513 min-height: var(--target-size);
514 514 box-sizing: border-box;
515 515 position: sticky;
516 Removed: top: 0;
517 Removed: z-index: 11;
516 Added: top: var(--nav-height);
517 Added: z-index: 9;
518 518 background-color: black;
519 519 padding: 0.5em 0.75em;
520 520 overflow-x: auto;
@@ -778,7 +778,7 @@
778 778
779 779 .toolbar ~ * details[open] > .tree-toggle,
780 780 .toolbar ~ details[open] > .tree-toggle {
781 Removed: top: var(--nav-height);
781 Added: top: calc(var(--nav-height) + var(--toolbar-height));
782 782 }
783 783
784 784 .tree-toggle::-webkit-details-marker {