Add mail menu sidebar

frontend-js/dist/app.js

@@ -93,6 +93,30 @@
   window.addEventListener("DOMContentLoaded", () => bind(document.querySelector(".three-pane")));
 })();
 
+(function () {
+  function setOpen(open) {
+    document.body.classList.toggle("backstage-open", open);
+    document.querySelectorAll("[data-backstage-toggle]").forEach((button) => {
+      button.setAttribute("aria-expanded", open ? "true" : "false");
+    });
+  }
+
+  document.addEventListener("click", (event) => {
+    const toggle = event.target.closest("[data-backstage-toggle]");
+    if (toggle) {
+      setOpen(!document.body.classList.contains("backstage-open"));
+      return;
+    }
+    if (event.target.closest("[data-backstage-close]")) {
+      setOpen(false);
+    }
+  });
+
+  document.addEventListener("keydown", (event) => {
+    if (event.key === "Escape") setOpen(false);
+  });
+})();
+
 (function () {
   function rowPayload(row) {
     return {

frontend-js/dist/style.css

@@ -32,13 +32,28 @@ body.ol2013 {
   color: #fff;
   display: flex;
   align-items: center;
-  gap: 24px;
-  padding: 0 16px;
+  gap: 12px;
+  padding: 0 16px 0 0;
   height: 44px;
   flex: 0 0 auto;
+  position: relative;
+  z-index: 20;
 }
 .ribbon-title { margin-left: auto; font-weight: 700; font-size: 15px; letter-spacing: .2px; }
 .ribbon-tabs { display: flex; gap: 2px; height: 100%; }
+.app-menu-button {
+  width: 54px;
+  height: 44px;
+  border: 0;
+  background: var(--ol-blue-dark);
+  color: #fff;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+}
+.app-menu-button:hover,
+.app-menu-button[aria-expanded="true"] { background: #00365f; }
 .tab {
   display: flex; align-items: center;
   gap: 8px;
@@ -77,6 +92,45 @@ body.ol2013 {
   transform-origin: right center;
 }
 
+.backstage-menu {
+  position: fixed;
+  top: 44px;
+  left: 0;
+  bottom: 22px;
+  width: 216px;
+  z-index: 18;
+  background: var(--ol-blue);
+  color: #fff;
+  padding: 10px 0;
+  transform: translateX(-100%);
+  transition: transform .16s ease-out;
+  box-shadow: 8px 0 18px rgba(0, 0, 0, .16);
+}
+.backstage-open .backstage-menu { transform: translateX(0); }
+.backstage-item {
+  display: block;
+  padding: 11px 22px;
+  color: #fff;
+  text-decoration: none;
+  border-left: 3px solid transparent;
+}
+.backstage-item:hover { background: var(--ol-blue-dark); }
+.backstage-item.active {
+  background: #fff;
+  color: var(--ol-blue);
+  border-left-color: #fff;
+}
+.backstage-shade {
+  position: fixed;
+  inset: 44px 0 22px 0;
+  z-index: 17;
+  border: 0;
+  background: transparent;
+  display: none;
+  cursor: default;
+}
+.backstage-open .backstage-shade { display: block; }
+
 /* Viewer */
 .three-pane,
 .four-pane {