Implemented phase 6 for the POC prototype in the Website service.

Services/Website/Resources/Static/css/collecting.css

@@ -233,3 +233,36 @@
     grid-template-columns: repeat(3, minmax(0, 1fr));
   }
 }
+
+/* The viewer's collection on a series */
+.series__collection {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-1);
+  max-width: 320px;
+  padding: var(--space-4);
+}
+
+.series__issue--owned {
+  background: var(--tint);
+  opacity: 0.7;
+}
+
+.series__own {
+  padding: 0;
+  border: 0;
+  background: none;
+  color: var(--muted);
+  font-size: 11px;
+  font-weight: 600;
+  text-align: left;
+  cursor: pointer;
+}
+
+.series__own:hover {
+  color: var(--ink);
+}
+
+.series__own[aria-pressed="true"] {
+  color: var(--good);
+}