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

Services/Website/Resources/Static/css/shared.css

@@ -1937,6 +1937,58 @@ textarea.input {
   color: var(--ink-soft);
 }
 
+.empty__actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--space-2);
+}
+
+/* A progress bar, in twentieths: inline widths are off the table under the site's Content-Security-Policy. */
+.progress {
+  position: relative;
+  display: block;
+  height: 6px;
+  overflow: hidden;
+  border-radius: 3px;
+  background: var(--tint);
+}
+
+.progress::after {
+  content: "";
+  position: absolute;
+  inset: 0 auto 0 0;
+  width: var(--progress, 0%);
+  background: var(--header);
+}
+
+.progress--5 { --progress: 5%; }
+.progress--10 { --progress: 10%; }
+.progress--15 { --progress: 15%; }
+.progress--20 { --progress: 20%; }
+.progress--25 { --progress: 25%; }
+.progress--30 { --progress: 30%; }
+.progress--35 { --progress: 35%; }
+.progress--40 { --progress: 40%; }
+.progress--45 { --progress: 45%; }
+.progress--50 { --progress: 50%; }
+.progress--55 { --progress: 55%; }
+.progress--60 { --progress: 60%; }
+.progress--65 { --progress: 65%; }
+.progress--70 { --progress: 70%; }
+.progress--75 { --progress: 75%; }
+.progress--80 { --progress: 80%; }
+.progress--85 { --progress: 85%; }
+.progress--90 { --progress: 90%; }
+.progress--95 { --progress: 95%; }
+
+.progress--100 {
+  --progress: 100%;
+}
+
+.progress--100::after {
+  background: var(--good);
+}
+
 /* The gate note under gated actions */
 .gate-note {
   display: flex;