Merge: t-paliad-290 — show-hidden toggle + un-hide chip on Verfahrensablauf (m/paliad#122)

frontend/src/styles/global.css

@@ -3531,6 +3531,46 @@ input[type="range"]::-moz-range-thumb {
     opacity: 0.55;
 }
 
+/* t-paliad-290 (m/paliad#122) — re-surfaced "hidden" cards. The user
+ * has previously marked these optional events as "Überspringen"; the
+ * "Ausgeblendete anzeigen" toggle on /tools/verfahrensablauf returns
+ * them with a faded + dotted-border treatment so they're visually
+ * distinct from the active timeline. The inline "Wieder einblenden"
+ * chip cancels the skip on click. */
+.timeline-item--hidden .timeline-content,
+.fr-col-item--hidden {
+    opacity: 0.55;
+    border: 1px dotted var(--color-border, #d4d4d4);
+    border-radius: 6px;
+    padding: 0.3rem 0.5rem;
+}
+
+.event-card-choices-unhide {
+    margin-left: 0.4rem;
+    font-size: 0.7rem;
+    font-weight: 500;
+    padding: 0.1rem 0.5rem;
+    border-radius: 99px;
+    border: 1px solid var(--color-accent, #c6f41c);
+    background: var(--color-accent, #c6f41c);
+    color: var(--color-text);
+    cursor: pointer;
+    /* Cancel the wrapper fade so the action remains a clear, high-
+     * contrast affordance even though the rest of the card is muted. */
+    opacity: 1;
+}
+
+.event-card-choices-unhide:hover,
+.event-card-choices-unhide:focus-visible {
+    background: var(--color-bg, #fff);
+}
+
+.show-hidden-count {
+    font-size: 0.78rem;
+    color: var(--color-text-muted);
+    margin-left: 0.4rem;
+}
+
 .event-card-choices-popover {
     background: var(--color-bg, #fff);
     border: 1px solid var(--color-border, #d4d4d4);