diff --git a/Overlord-Server/public/assets/build.js b/Overlord-Server/public/assets/build.js
index 1f467b6..6f02b8a 100644
--- a/Overlord-Server/public/assets/build.js
+++ b/Overlord-Server/public/assets/build.js
@@ -3,6 +3,11 @@ import {
   createBuildHistoryManager,
   formatFileSize,
 } from "./build-history-manager.js";
+import {
+  animateElement,
+  revealElement,
+  staggerChildren,
+} from "./motion.js";
 
 const form = document.getElementById("build-form");
 const buildBtn = document.getElementById("build-btn");
@@ -195,12 +200,22 @@ function updateServerUrlCurrentButton() {
 
 let isBuilding = false;
 
+function revealBuildResults() {
+  if (buildResults.classList.contains("hidden")) {
+    revealElement(buildResults, { duration: 240, offset: 8 });
+  }
+  requestAnimationFrame(() => {
+    staggerChildren(buildFilesDiv, { limit: 10, interval: 28, duration: 220, offset: 6 });
+  });
+}
+
 function initAccordions() {
   document.querySelectorAll(".accordion-section").forEach((section) => {
     const header = section.querySelector(".accordion-header");
     const body = section.querySelector(".accordion-body");
     const chevron = section.querySelector(".accordion-chevron");
     const startOpen = section.dataset.open !== "false";
+    header.setAttribute("aria-expanded", String(startOpen));
 
     if (!startOpen) {
       body.classList.add("collapsed");
@@ -211,6 +226,12 @@ function initAccordions() {
     header.addEventListener("click", () => {
       const nowCollapsed = body.classList.toggle("collapsed");
       chevron.classList.toggle("rotated", !nowCollapsed);
+      section.dataset.open = String(!nowCollapsed);
+      header.setAttribute("aria-expanded", String(!nowCollapsed));
+      animateElement(header, [
+        { backgroundColor: "rgba(51, 65, 85, 0.62)" },
+        { backgroundColor: "rgba(30, 41, 59, 0.5)" },
+      ], { duration: 180 });
     });
   });
 }
@@ -226,6 +247,10 @@ function initBuilderTabs() {
     panels.forEach((p) => {
       if (p.dataset.builderPanel === tabName) {
         p.removeAttribute("hidden");
+        animateElement(p, [
+          { opacity: 0, transform: "translateY(7px)" },
+          { opacity: 1, transform: "translateY(0)" },
+        ], { duration: 200 });
       } else {
         p.setAttribute("hidden", "");
       }
@@ -2020,7 +2045,7 @@ async function startBuild(config) {
     setSgnTxtButtonState("Building TXT...", "fa-solid fa-spinner fa-spin");
   }
 
-  buildStatus.classList.remove("hidden");
+  revealElement(buildStatus, { duration: 220, offset: 6 });
   buildStatusText.textContent = "Starting build...";
   buildStatus.querySelector("div").className =
     "flex items-center gap-2 p-3 rounded-lg bg-blue-900/40 border border-blue-700/60";
@@ -2136,7 +2161,7 @@ async function streamBuildOutput(buildId, config = {}) {
             files: info.files,
           };
           saveBuildToStorage(buildData.id, buildData);
-          buildResults.classList.remove("hidden");
+          revealBuildResults();
           displayBuild(buildData);
 
           if (pendingUpdateAll) {
@@ -2181,7 +2206,7 @@ async function streamBuildOutput(buildId, config = {}) {
               files: info.files,
             };
             saveBuildToStorage(buildData.id, buildData);
-            buildResults.classList.remove("hidden");
+            revealBuildResults();
             displayBuild(buildData);
           }
           return;
@@ -2250,7 +2275,7 @@ async function streamBuildOutput(buildId, config = {}) {
                 };
                 saveBuildToStorage(data.buildId, buildData);
 
-                buildResults.classList.remove("hidden");
+                revealBuildResults();
                 displayBuild(buildData);
 
                 if (uploadedShareFiles.length > 0) {
@@ -2304,7 +2329,7 @@ async function streamBuildOutput(buildId, config = {}) {
           files: info.files,
         };
         saveBuildToStorage(buildData.id, buildData);
-        buildResults.classList.remove("hidden");
+        revealBuildResults();
         displayBuild(buildData);
       }
     } else {
@@ -2394,7 +2419,7 @@ function renderShareLinksPanel(items) {
 }
 
 function showBuildFiles(files, buildId, expiresAt) {
-  buildResults.classList.remove("hidden");
+  revealBuildResults();
   buildFilesDiv.innerHTML = "";
 
   const buildInfoDiv = document.createElement("div");
diff --git a/Overlord-Server/public/assets/deploy.js b/Overlord-Server/public/assets/deploy.js
index 66bcd62..bddaa1a 100644
--- a/Overlord-Server/public/assets/deploy.js
+++ b/Overlord-Server/public/assets/deploy.js
@@ -1,4 +1,10 @@
 import { escapeHtml, formatBytes } from "./format.js";
+import {
+  animateTextChange,
+  emphasizeElement,
+  staggerChildren,
+  swapPanels,
+} from "./motion.js";
 
 const clientList = document.getElementById("client-list");
 const clientSearch = document.getElementById("client-search");
@@ -27,22 +33,22 @@ const fetchUrlBtn = document.getElementById("fetch-url-btn");
 let activeTab = "upload";
 
 function switchTab(tab) {
+  if (tab === activeTab) return;
+  const outgoing = activeTab === "upload" ? panelUpload : panelUrl;
+  const incoming = tab === "upload" ? panelUpload : panelUrl;
   activeTab = tab;
   if (tab === "upload") {
     tabUpload.classList.add("bg-slate-700", "text-slate-100");
     tabUpload.classList.remove("text-slate-400");
     tabUrl.classList.remove("bg-slate-700", "text-slate-100");
     tabUrl.classList.add("text-slate-400");
-    panelUpload.classList.remove("hidden");
-    panelUrl.classList.add("hidden");
   } else {
     tabUrl.classList.add("bg-slate-700", "text-slate-100");
     tabUrl.classList.remove("text-slate-400");
     tabUpload.classList.remove("bg-slate-700", "text-slate-100");
     tabUpload.classList.add("text-slate-400");
-    panelUrl.classList.remove("hidden");
-    panelUpload.classList.add("hidden");
   }
+  swapPanels(outgoing, incoming);
 }
 
 tabUpload.addEventListener("click", () => switchTab("upload"));
@@ -228,6 +234,8 @@ function renderClients() {
     cb.addEventListener("change", handleClientToggle);
   });
 
+  staggerChildren(clientList, { limit: 12, interval: 18, duration: 180, offset: 5 });
+
   updateSelectedCount();
 }
 
@@ -243,6 +251,7 @@ function handleClientToggle(e) {
 
 function updateSelectedCount() {
   selectedCountSpan.textContent = `${selectedClients.size} selected`;
+  animateTextChange(selectedCountSpan);
   executeBtn.disabled = selectedClients.size === 0 || !uploaded;
   if (updateBtn) {
     updateBtn.disabled = selectedClients.size === 0 || !uploaded;
@@ -269,6 +278,7 @@ function matchesClientOs(clientOs, targetOs) {
 function setUploadStatus(text, tone = "text-slate-400") {
   uploadStatus.className = `mt-3 text-sm ${tone}`;
   uploadStatus.textContent = text;
+  animateTextChange(uploadStatus);
 }
 
 function setOsBadge(os) {
@@ -513,6 +523,7 @@ executeBtn.addEventListener("click", async () => {
     </div>`;
     })
     .join("");
+  staggerChildren(outputContainer, { limit: 16, interval: 30, duration: 220, offset: 7 });
 
   executeBtn.disabled = false;
 });
@@ -747,6 +758,7 @@ function renderAutoDeployList(items) {
         </div>`;
     })
     .join("");
+  staggerChildren(autoDeployList, { limit: 12, interval: 24, duration: 200, offset: 6 });
 
   autoDeployList.querySelectorAll(".auto-deploy-toggle").forEach((btn) => {
     btn.addEventListener("click", async () => {
@@ -759,6 +771,7 @@ function renderAutoDeployList(items) {
           body: JSON.stringify({ enabled: !currentlyEnabled }),
         });
         if (res.ok) loadAutoDeploys();
+        if (res.ok) emphasizeElement(btn, "rgba(52, 211, 153, 0.24)");
       } catch (err) {
         console.error("Toggle failed:", err);
       }
diff --git a/Overlord-Server/public/assets/filebrowser-transfer-panel.js b/Overlord-Server/public/assets/filebrowser-transfer-panel.js
index d0cdc4d..bb889f4 100644
--- a/Overlord-Server/public/assets/filebrowser-transfer-panel.js
+++ b/Overlord-Server/public/assets/filebrowser-transfer-panel.js
@@ -1,4 +1,5 @@
 import { formatBytes } from "./filebrowser-utils.js";
+import { concealElement, revealElement } from "./motion.js";
 
 export function createTransferPanel({ onCancel }) {
   const transferPanel = document.getElementById("transfer-panel");
@@ -43,7 +44,10 @@ export function createTransferPanel({ onCancel }) {
     }
 
     transferList.appendChild(transferItem);
-    transferPanel.classList.remove("hidden");
+    if (transferPanel.classList.contains("hidden")) {
+      revealElement(transferPanel, { duration: 180, offset: 6 });
+    }
+    revealElement(transferItem, { duration: 190, offset: 7 });
   }
 
   function updateTransferProgress(transferId, progress, current, total) {
@@ -61,14 +65,15 @@ export function createTransferPanel({ onCancel }) {
     }
   }
 
-  function removeTransfer(transferId) {
+  async function removeTransfer(transferId) {
     const transferItem = document.getElementById(`transfer-${transferId}`);
     if (transferItem) {
+      await concealElement(transferItem, { duration: 130, offset: -5 });
       transferItem.remove();
     }
 
     if (transferList && transferList.children.length === 0) {
-      transferPanel?.classList.add("hidden");
+      await concealElement(transferPanel, { duration: 120, offset: 5 });
     }
   }
 
diff --git a/Overlord-Server/public/assets/filebrowser.js b/Overlord-Server/public/assets/filebrowser.js
index edb9a26..522e167 100644
--- a/Overlord-Server/public/assets/filebrowser.js
+++ b/Overlord-Server/public/assets/filebrowser.js
@@ -3,6 +3,12 @@ import { checkFeatureAccess } from "./feature-gate.js";
 import { createFileHexHashManager } from "./filebrowser-hex-hash.js";
 import { createFilePreviewModal } from "./filebrowser-preview-modal.js";
 import { createTransferPanel } from "./filebrowser-transfer-panel.js";
+import {
+  animateElement,
+  concealElement,
+  revealElement,
+  staggerChildren,
+} from "./motion.js";
 import {
   KNOWN_BINARY_EXTS,
   PREVIEW_IMAGE_EXTS,
@@ -1165,52 +1171,28 @@ function clearVirtualizedListMode() {
 
 function renderDirectoryStandard(entries, canGoUp, parentPath, disableAnimations) {
   clearVirtualizedListMode();
+  fileListEl.style.transition = "none";
+  fileListEl.style.opacity = "1";
+  fileListEl.style.transform = "translateX(0)";
+  fileListEl.innerHTML = "";
 
-  if (!disableAnimations) {
-    fileListEl.style.opacity = "0";
-    fileListEl.style.transform = "translateX(20px)";
+  if (canGoUp) fileListEl.appendChild(createParentRow(parentPath));
+
+  if (entries.length === 0 && !canGoUp) {
+    fileListEl.innerHTML =
+      '<div class="px-4 py-6 text-center text-slate-400"><i class="fa-solid fa-folder-open mr-2"></i>Empty directory</div>';
   } else {
-    fileListEl.style.transition = "none";
-    fileListEl.style.opacity = "1";
-    fileListEl.style.transform = "translateX(0)";
+    const fragment = document.createDocumentFragment();
+    entries.forEach((entry) => fragment.appendChild(createFileRow(entry)));
+    fileListEl.appendChild(fragment);
   }
 
-  const renderList = () => {
-    fileListEl.innerHTML = "";
-
-    if (canGoUp) {
-      fileListEl.appendChild(createParentRow(parentPath));
-    }
-
-    if (entries.length === 0 && !canGoUp) {
-      fileListEl.innerHTML =
-        '<div class="px-4 py-6 text-center text-slate-400"><i class="fa-solid fa-folder-open mr-2"></i>Empty directory</div>';
-      fileListEl.style.opacity = "1";
-      fileListEl.style.transform = "translateX(0)";
-      return;
-    }
-
-    entries.forEach((entry, index) => {
-      const row = createFileRow(entry);
-      if (!disableAnimations) {
-        row.style.animationDelay = `${index * 0.02}s`;
-        row.classList.add("card-animate");
-      }
-      fileListEl.appendChild(row);
-    });
-
-    if (!disableAnimations) {
-      fileListEl.style.transition =
-        "opacity 0.3s ease-out, transform 0.3s ease-out";
-      fileListEl.style.opacity = "1";
-      fileListEl.style.transform = "translateX(0)";
-    }
-  };
-
-  if (disableAnimations) {
-    renderList();
-  } else {
-    setTimeout(renderList, 150);
+  if (!disableAnimations) {
+    animateElement(fileListEl, [
+      { opacity: 0.35, transform: "translateX(8px)" },
+      { opacity: 1, transform: "translateX(0)" },
+    ], { duration: 190 });
+    staggerChildren(fileListEl, { limit: 14, interval: 18, duration: 190, offset: 5 });
   }
 }
 
@@ -2384,6 +2366,7 @@ function handleCommandResult(msg) {
 function showContextMenu(x, y, entry) {
   contextMenu.style.left = `${x}px`;
   contextMenu.style.top = `${y}px`;
+  contextMenu.style.transformOrigin = `${x > window.innerWidth / 2 ? "right" : "left"} top`;
   contextMenu.classList.add("show");
   contextMenu.dataset.path = entry.path;
   contextMenu.dataset.isDir = entry.isDir;
@@ -3036,14 +3019,26 @@ const {
   requestFilePeek,
 } = fileHexHashManager;
 
-function setPreviewPaneVisible(visible) {
+function setPreviewPaneVisible(visible, animate = true) {
   if (!previewPaneHost) return;
   if (visible) {
-    previewPaneHost.classList.remove("hidden");
+    previewPaneHost.classList.remove("preview-pane-user-hidden");
+    if (animate) revealElement(previewPaneHost, { duration: 220, offset: 0, scale: 0.98 });
+    else previewPaneHost.classList.remove("hidden");
     previewPaneShowBtnHost?.classList.add("hidden");
   } else {
-    previewPaneHost.classList.add("hidden");
-    previewPaneShowBtnHost?.classList.remove("hidden");
+    if (animate) {
+      concealElement(previewPaneHost, { duration: 140, offset: 0, scale: 0.98 })
+        .then((concealed) => {
+          if (!concealed) return;
+          previewPaneHost.classList.add("preview-pane-user-hidden");
+          revealElement(previewPaneShowBtnHost, { duration: 160, offset: 4 });
+        });
+    } else {
+      previewPaneHost.classList.add("hidden");
+      previewPaneHost.classList.add("preview-pane-user-hidden");
+      previewPaneShowBtnHost?.classList.remove("hidden");
+    }
   }
   try { localStorage.setItem(PREVIEW_PANE_STATE_KEY, visible ? "1" : "0"); } catch {}
 }
@@ -3053,7 +3048,7 @@ previewPaneShowBtn?.addEventListener("click", () => setPreviewPaneVisible(true))
 (function initPreviewPaneVisibility() {
   let saved = "1";
   try { saved = localStorage.getItem(PREVIEW_PANE_STATE_KEY) || "1"; } catch {}
-  setPreviewPaneVisible(saved !== "0");
+  setPreviewPaneVisible(saved !== "0", false);
 })();
 
 function clearPreviewPane() {
diff --git a/Overlord-Server/public/assets/main.css b/Overlord-Server/public/assets/main.css
index 9b9ceb5..ef0c8b7 100644
--- a/Overlord-Server/public/assets/main.css
+++ b/Overlord-Server/public/assets/main.css
@@ -33,6 +33,29 @@
   --color-primary-hover: #818cf8;
   --color-success: #22c55e;
   --color-danger: #ef4444;
+
+  /* Shared interaction motion */
+  --motion-fast: 140ms;
+  --motion-normal: 220ms;
+  --motion-slow: 360ms;
+  --motion-ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
+  --motion-ease-in: cubic-bezier(0.4, 0, 1, 1);
+}
+
+.motion-surface {
+  transition:
+    border-color var(--motion-normal) var(--motion-ease-out),
+    background-color var(--motion-normal) var(--motion-ease-out),
+    box-shadow var(--motion-normal) var(--motion-ease-out),
+    opacity var(--motion-normal) var(--motion-ease-out),
+    transform var(--motion-normal) var(--motion-ease-out);
+}
+
+.motion-status {
+  transition:
+    color var(--motion-fast) ease,
+    background-color var(--motion-fast) ease,
+    border-color var(--motion-fast) ease;
 }
 
 .monaco-editor,
diff --git a/Overlord-Server/public/assets/motion.js b/Overlord-Server/public/assets/motion.js
new file mode 100644
index 0000000..487f04f
--- /dev/null
+++ b/Overlord-Server/public/assets/motion.js
@@ -0,0 +1,95 @@
+const reducedMotionQuery = window.matchMedia("(prefers-reduced-motion: reduce)");
+const activeAnimations = new WeakMap();
+const visibilityIntent = new WeakMap();
+let panelSwapSequence = 0;
+
+export function prefersReducedMotion() {
+  return reducedMotionQuery.matches;
+}
+
+export function animateElement(element, keyframes, options = {}) {
+  if (!element || prefersReducedMotion() || typeof element.animate !== "function") {
+    return null;
+  }
+
+  activeAnimations.get(element)?.cancel();
+  const animation = element.animate(keyframes, {
+    duration: 220,
+    easing: "cubic-bezier(0.2, 0.8, 0.2, 1)",
+    fill: "none",
+    ...options,
+  });
+  activeAnimations.set(element, animation);
+  animation.addEventListener("finish", () => {
+    if (activeAnimations.get(element) === animation) activeAnimations.delete(element);
+  }, { once: true });
+  animation.addEventListener("cancel", () => {
+    if (activeAnimations.get(element) === animation) activeAnimations.delete(element);
+  }, { once: true });
+  return animation;
+}
+
+export function revealElement(element, options = {}) {
+  if (!element) return null;
+  visibilityIntent.set(element, true);
+  element.classList.remove("hidden");
+  element.removeAttribute("hidden");
+  return animateElement(element, [
+    { opacity: 0, transform: `translateY(${options.offset ?? 8}px) scale(${options.scale ?? 0.99})` },
+    { opacity: 1, transform: "translateY(0) scale(1)" },
+  ], { duration: options.duration ?? 220 });
+}
+
+export async function concealElement(element, options = {}) {
+  if (!element || element.classList.contains("hidden") || element.hasAttribute("hidden")) return false;
+  visibilityIntent.set(element, false);
+  const animation = animateElement(element, [
+    { opacity: 1, transform: "translateY(0) scale(1)" },
+    { opacity: 0, transform: `translateY(${options.offset ?? -4}px) scale(${options.scale ?? 0.995})` },
+  ], { duration: options.duration ?? 110, easing: "ease-in" });
+  if (animation) {
+    try { await animation.finished; } catch {}
+  }
+  if (visibilityIntent.get(element) === false) {
+    element.classList.add("hidden");
+    return true;
+  }
+  return false;
+}
+
+export async function swapPanels(outgoing, incoming) {
+  if (!incoming || outgoing === incoming) return;
+  const sequence = ++panelSwapSequence;
+  if (outgoing) await concealElement(outgoing, { duration: 90, offset: -3 });
+  if (sequence !== panelSwapSequence) return;
+  revealElement(incoming, { duration: 190, offset: 6 });
+}
+
+export function staggerChildren(container, options = {}) {
+  if (!container || prefersReducedMotion()) return;
+  const children = Array.from(container.children).slice(0, options.limit ?? 12);
+  children.forEach((child, index) => {
+    animateElement(child, [
+      { opacity: 0, transform: `translateY(${options.offset ?? 7}px)` },
+      { opacity: 1, transform: "translateY(0)" },
+    ], {
+      duration: options.duration ?? 200,
+      delay: index * (options.interval ?? 24),
+    });
+  });
+}
+
+export function emphasizeElement(element, tone = "rgba(56, 189, 248, 0.28)") {
+  return animateElement(element, [
+    { transform: "scale(1)", boxShadow: "0 0 0 0 transparent" },
+    { transform: "scale(1.012)", boxShadow: `0 0 0 3px ${tone}` },
+    { transform: "scale(1)", boxShadow: "0 0 0 0 transparent" },
+  ], { duration: 420, easing: "ease-out" });
+}
+
+export function animateTextChange(element) {
+  return animateElement(element, [
+    { opacity: 0.45, transform: "translateY(3px)" },
+    { opacity: 1, transform: "translateY(0)" },
+  ], { duration: 160 });
+}
diff --git a/Overlord-Server/public/assets/settings.js b/Overlord-Server/public/assets/settings.js
index f5d5c59..5685e32 100644
--- a/Overlord-Server/public/assets/settings.js
+++ b/Overlord-Server/public/assets/settings.js
@@ -12,6 +12,13 @@ import {
   setEasterEggEnabled,
   showEnabledEasterEgg,
 } from "./easter-egg.js";
+import {
+  animateElement,
+  animateTextChange,
+  concealElement,
+  emphasizeElement,
+  revealElement,
+} from "./motion.js";
 
 const PREF_REFRESH_KEY = "overlord_refresh_interval_seconds";
 const NAV_MODE_KEY = "sb_mode";
@@ -190,6 +197,7 @@ function showMessage(text, type = "ok") {
   } else {
     messageEl.classList.add("text-emerald-200", "border-emerald-700", "bg-emerald-900/30");
   }
+  animateTextChange(messageEl);
 }
 
 function formatDate(timestamp) {
@@ -470,7 +478,11 @@ function applyTlsForm() {
 }
 
 tlsTrustHelpBtn?.addEventListener("click", () => {
-  tlsTrustInstructions?.classList.toggle("hidden");
+  if (tlsTrustInstructions?.classList.contains("hidden")) {
+    revealElement(tlsTrustInstructions, { duration: 200, offset: 5 });
+  } else {
+    concealElement(tlsTrustInstructions, { duration: 120, offset: -3 });
+  }
 });
 
 async function loadActiveTlsCertificate() {
@@ -792,7 +804,7 @@ async function startMfaSetup() {
     if (mfaQrCode) mfaQrCode.innerHTML = data.qrSvg || "";
     if (mfaSecretText) mfaSecretText.textContent = data.secret || "";
     if (mfaOtpauthLink) mfaOtpauthLink.href = data.otpauthUrl || "#";
-    if (mfaSetupPanel) mfaSetupPanel.classList.remove("hidden");
+    revealElement(mfaSetupPanel, { duration: 240, offset: 8 });
     if (mfaEnableCodeInput) mfaEnableCodeInput.focus();
   } catch {
     showMfaMessage("Network error while starting MFA setup.", "error");
@@ -813,7 +825,7 @@ async function enableMfa() {
       showMfaMessage(data.error || "Failed to enable MFA.", "error");
       return;
     }
-    if (mfaSetupPanel) mfaSetupPanel.classList.add("hidden");
+    concealElement(mfaSetupPanel, { duration: 130, offset: -4 });
     if (mfaEnableCodeInput) mfaEnableCodeInput.value = "";
     showMfaMessage("MFA enabled.");
     await loadMfaStatus();
@@ -1396,9 +1408,18 @@ function initSettingsSidebar() {
   }
   if (sectionMap.size === 0) return;
 
+  let activeLink = null;
   function setActive(link) {
+    if (link === activeLink) return;
+    activeLink = link;
     links.forEach((l) => l.classList.remove("active"));
-    if (link) link.classList.add("active");
+    if (link) {
+      link.classList.add("active");
+      animateElement(link, [
+        { transform: "translateX(-2px)", opacity: 0.8 },
+        { transform: "translateX(0)", opacity: 1 },
+      ], { duration: 180 });
+    }
   }
 
   function isAtPageBottom() {
@@ -1421,6 +1442,7 @@ function initSettingsSidebar() {
     updateSettingsScrollOffset();
     _clickLockUntil = Date.now() + 1200;
     setActive(link);
+    emphasizeElement(target, "rgba(56, 189, 248, 0.18)");
     target.scrollIntoView({ behavior: "smooth", block: "start" });
     history.replaceState(null, "", `#${id}`);
   });
diff --git a/Overlord-Server/public/build.html b/Overlord-Server/public/build.html
index 72b5149..2eecc05 100644
--- a/Overlord-Server/public/build.html
+++ b/Overlord-Server/public/build.html
@@ -21,7 +21,7 @@
       .accordion-body {
         display: grid;
         grid-template-rows: 1fr;
-        transition: grid-template-rows 0.2s ease, opacity 0.2s ease;
+        transition: grid-template-rows var(--motion-normal) var(--motion-ease-out), opacity var(--motion-fast) ease;
         opacity: 1;
       }
       .accordion-body.collapsed {
@@ -32,7 +32,7 @@
         overflow: hidden;
       }
       .accordion-chevron {
-        transition: transform 0.2s ease;
+        transition: transform var(--motion-normal) var(--motion-ease-out);
       }
       .accordion-chevron.rotated {
         transform: rotate(-180deg);
@@ -67,11 +67,12 @@
         color: rgb(148, 163, 184);
         font-size: 0.78rem;
         font-weight: 600;
-        transition: color 160ms ease, background 160ms ease, box-shadow 160ms ease;
+        transition: color var(--motion-fast) ease, background var(--motion-fast) ease, box-shadow var(--motion-normal) var(--motion-ease-out), transform var(--motion-fast) ease;
       }
       .builder-tab:hover {
         color: rgb(226, 232, 240);
         background: rgba(51, 65, 85, 0.45);
+        transform: translateY(-1px);
       }
       .builder-tab[aria-selected="true"] {
         color: white;
diff --git a/Overlord-Server/public/filebrowser.html b/Overlord-Server/public/filebrowser.html
index 54a3d85..335cbc4 100644
--- a/Overlord-Server/public/filebrowser.html
+++ b/Overlord-Server/public/filebrowser.html
@@ -23,6 +23,10 @@
       }
       .file-item {
         position: relative;
+        transition:
+          background-color var(--motion-fast) ease,
+          box-shadow var(--motion-fast) ease,
+          border-color var(--motion-fast) ease;
       }
       .file-item.selected {
         background-color: rgba(14, 165, 233, 0.12);
@@ -56,7 +60,7 @@
         background-color: #2563eb;
       }
       .context-menu {
-        display: none;
+        display: block;
         position: fixed;
         z-index: 1000;
         background-color: #1e293b;
@@ -64,9 +68,22 @@
         border-radius: 0.5rem;
         padding: 0.5rem 0;
         box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3);
+        opacity: 0;
+        visibility: hidden;
+        pointer-events: none;
+        transform: translateY(4px) scale(0.96);
+        transform-origin: top left;
+        transition:
+          opacity var(--motion-fast) ease,
+          transform var(--motion-fast) var(--motion-ease-out),
+          visibility 0s linear var(--motion-fast);
       }
       .context-menu.show {
-        display: block;
+        opacity: 1;
+        visibility: visible;
+        pointer-events: auto;
+        transform: translateY(0) scale(1);
+        transition-delay: 0s;
       }
       .context-menu-item {
         padding: 0.5rem 1rem;
@@ -348,7 +365,9 @@
         top: 5rem;
         max-height: calc(100vh - 6rem);
         overflow-y: auto;
+        transform-origin: top right;
       }
+      #preview-pane-host.preview-pane-user-hidden { display: none !important; }
       #preview-pane {
         /* host handles sticky + scroll; inner stays in normal flow */
       }
diff --git a/Overlord-Server/public/settings.html b/Overlord-Server/public/settings.html
index 6c7d832..7afc2da 100644
--- a/Overlord-Server/public/settings.html
+++ b/Overlord-Server/public/settings.html
@@ -25,7 +25,7 @@
         border-radius: 0.5rem;
         color: rgb(203 213 225); /* slate-300 */
         cursor: pointer;
-        transition: background-color 120ms, color 120ms;
+        transition: background-color var(--motion-fast), color var(--motion-fast), box-shadow var(--motion-normal) var(--motion-ease-out), transform var(--motion-fast) ease;
       }
       .settings-nav-link span {
         min-width: 0;
@@ -36,6 +36,7 @@
       .settings-nav-link:hover {
         background-color: rgb(30 41 59 / 0.7); /* slate-800/70 */
         color: rgb(241 245 249); /* slate-100 */
+        transform: translateX(2px);
       }
       /* Active state pulls its color from --accent (set inline per link to
          match the link's icon). Falls back to sky-400 if not set. */
@@ -61,7 +62,10 @@
          class applies scroll-margin-top, which both `scrollIntoView` and
          browser hash navigation honor. */
       :root { --settings-scroll-mt: 1rem; }
-      .settings-section { scroll-margin-top: var(--settings-scroll-mt); }
+      .settings-section {
+        scroll-margin-top: var(--settings-scroll-mt);
+        transition: border-color var(--motion-normal) ease, box-shadow var(--motion-normal) ease;
+      }
       /* Also pin the sticky sidebar below the topbar so it doesn't slide
          under the nav when the page is scrolled. */
       #settings-sidebar {