From fd1dbf66f2ad613366b325a817c285c74f32aad0 Mon Sep 17 00:00:00 2001
From: Nguyen Ngo <nngo@Nguyens-MacBook-Pro.local>
Date: Sun, 19 Apr 2026 09:56:39 -0400
Subject: [PATCH] 04/19 Continue fixing the UI issues with Chrome 2

---
 app/static/css/app.css | 1660 +++++++++++++++++++++++++++++++---------
 1 file changed, 1286 insertions(+), 374 deletions(-)

diff --git a/app/static/css/app.css b/app/static/css/app.css
index b8b6046..4fa1786 100644
--- a/app/static/css/app.css
+++ b/app/static/css/app.css
@@ -20,14 +20,14 @@
   --color-sidebar-hover: #2d3250;
   --color-sidebar-active: #d0021b;
   --radius: 8px;
-  --shadow: 0 1px 4px rgba(0, 0, 0, .08), 0 2px 12px rgba(0, 0, 0, .05);
+  --shadow: 0 1px 4px rgba(0, 0, 0, 0.08), 0 2px 12px rgba(0, 0, 0, 0.05);
   --transition: 150ms ease;
 }
 
 html,
 body {
   height: 100%;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
   font-size: 14px;
   color: var(--color-text);
   background: var(--color-bg);
@@ -165,7 +165,7 @@ ul {
 .form-group textarea:focus {
   outline: none;
   border-color: var(--color-primary);
-  box-shadow: 0 0 0 3px rgba(208, 2, 27, .12);
+  box-shadow: 0 0 0 3px rgba(208, 2, 27, 0.12);
 }
 
 /* Prevent iOS viewport auto-zoom on input focus (requires font-size >= 16px) */
@@ -195,7 +195,7 @@ ul {
   border: none;
   cursor: pointer;
   font-size: 16px;
-  opacity: .6;
+  opacity: 0.6;
   transition: opacity var(--transition);
 }
 
@@ -231,7 +231,7 @@ ul {
 }
 
 .btn-primary:disabled {
-  opacity: .6;
+  opacity: 0.6;
   cursor: not-allowed;
 }
 
@@ -300,8 +300,8 @@ ul {
 }
 
 #gen-output {
-  letter-spacing: .5px;
-  font-family: 'Courier New', monospace;
+  letter-spacing: 0.5px;
+  font-family: "Courier New", monospace;
 }
 
 /* Launch (open URL) button — distinct colour so it reads as navigation */
@@ -355,17 +355,34 @@ ul {
 }
 
 /* ── Sidebar ─────────────────────────────────────────────────────── */
-
-/* ── Base sidebar styles (shared by mobile and desktop) ─────────── */
 .sidebar {
+  width: 240px;
+  flex-shrink: 0;
   background: var(--color-sidebar-bg);
   color: var(--color-sidebar-text);
   display: flex;
   flex-direction: column;
-  /* Default = desktop. html.is-mobile overrides display:none below. */
-  width: 240px;
-  flex-shrink: 0;
   overflow: hidden;
+  /* No transition here — added back in the >768px media query so it
+     never interferes with display:none on mobile in Chrome */
+}
+
+.sidebar.collapsed {
+  width: 72px;
+}
+
+/* Sidebar width transition only on non-mobile — prevents Chrome from
+   deferring display:none while a transition is active */
+@media (min-width: 769px) {
+  .sidebar {
+    transition: width 0.22s ease;
+  }
+}
+
+/* Sidebar must not clip its children when collapsed — tooltips need to escape */
+.sidebar.collapsed .sidebar-nav,
+.sidebar.collapsed .sidebar-footer {
+  overflow: visible;
 }
 
 .sidebar-header {
@@ -373,14 +390,23 @@ ul {
   align-items: center;
   gap: 8px;
   padding: 14px 12px;
-  border-bottom: 1px solid rgba(255, 255, 255, .08);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
   flex-shrink: 0;
   min-height: 56px;
+  overflow: hidden;
+}
+
+/* When collapsed: centre the toggle button, hide everything else */
+.sidebar.collapsed .sidebar-header {
+  justify-content: center;
+  padding: 14px 0;
+  overflow: visible;
 }
 
 .sidebar-header .logo-icon {
   font-size: 22px;
   flex-shrink: 0;
+  transition: opacity 0.15s ease;
 }
 
 .sidebar-header .logo-text {
@@ -390,6 +416,42 @@ ul {
   flex: 1;
   white-space: nowrap;
   overflow: hidden;
+  transition: opacity 0.15s ease;
+}
+
+.sidebar.collapsed .sidebar-header .logo-icon,
+.sidebar.collapsed .sidebar-header .logo-text {
+  opacity: 0;
+  width: 0;
+  pointer-events: none;
+}
+
+/* Toggle button — always visible, always clickable */
+.btn-sidebar-toggle {
+  background: none;
+  border: none;
+  color: rgba(255, 255, 255, 0.5);
+  font-size: 14px;
+  cursor: pointer;
+  padding: 6px 8px;
+  border-radius: 4px;
+  line-height: 1;
+  flex-shrink: 0;
+  transition:
+    color var(--transition),
+    transform 0.22s ease;
+  margin-left: auto;
+  z-index: 10;
+}
+
+.btn-sidebar-toggle:hover {
+  color: #fff;
+  background: rgba(255, 255, 255, 0.12);
+}
+
+.sidebar.collapsed .btn-sidebar-toggle {
+  transform: rotate(180deg);
+  margin-left: 0;
 }
 
 .sidebar-nav {
@@ -403,10 +465,18 @@ ul {
   padding: 12px 16px 4px;
   font-size: 11px;
   text-transform: uppercase;
-  letter-spacing: .08em;
-  color: rgba(255, 255, 255, .35);
+  letter-spacing: 0.08em;
+  color: rgba(255, 255, 255, 0.35);
   white-space: nowrap;
   overflow: hidden;
+  transition: opacity 0.15s ease;
+}
+
+.sidebar.collapsed .sidebar-section-header {
+  opacity: 0;
+  pointer-events: none;
+  height: 0;
+  padding: 0;
 }
 
 .sidebar-item {
@@ -414,6 +484,7 @@ ul {
   align-items: center;
   gap: 10px;
   padding: 9px 16px;
+  border-radius: 0;
   color: var(--color-sidebar-text);
   cursor: pointer;
   transition: background var(--transition);
@@ -441,110 +512,28 @@ ul {
   text-align: center;
 }
 
+/* Labels — fade out when collapsed; use max-width so icon stays visible */
 .sidebar-label {
-  white-space: nowrap;
-  overflow: hidden;
-}
-
-.sidebar-footer {
-  padding: 12px 0;
-  border-top: 1px solid rgba(255, 255, 255, .08);
-}
-
-/* ── DESKTOP sidebar (html.is-desktop) ───────────────────────────── */
-html.is-desktop .sidebar {
-  width: 240px;
-  flex-shrink: 0;
-  overflow: hidden;
-  /* Transition only on desktop so display:none on mobile is instant */
-  transition: width .22s ease;
-}
-
-/* Set by layout-init.js before paint so collapsed sidebar renders at right width immediately */
-html.is-desktop.sidebar-will-collapse .sidebar,
-html.is-desktop .sidebar.collapsed {
-  width: 72px;
-}
-
-html.is-desktop .sidebar.collapsed .sidebar-nav,
-html.is-desktop .sidebar.collapsed .sidebar-footer {
-  overflow: visible;
-}
-
-html.is-desktop .sidebar.collapsed .sidebar-header {
-  justify-content: center;
-  padding: 14px 0;
-  overflow: visible;
-}
-
-html.is-desktop .sidebar-header .logo-icon {
-  transition: opacity .15s ease;
-}
-
-html.is-desktop .sidebar-header .logo-text {
-  flex: 1;
-  transition: opacity .15s ease;
-}
-
-html.is-desktop .sidebar.collapsed .sidebar-header .logo-icon,
-html.is-desktop .sidebar.collapsed .sidebar-header .logo-text {
-  opacity: 0;
-  width: 0;
-  pointer-events: none;
-}
-
-html.is-desktop .btn-sidebar-toggle {
-  background: none;
-  border: none;
-  color: rgba(255, 255, 255, .5);
-  font-size: 14px;
-  cursor: pointer;
-  padding: 6px 8px;
-  border-radius: 4px;
-  line-height: 1;
-  flex-shrink: 0;
-  transition: color var(--transition), transform .22s ease;
-  margin-left: auto;
-}
-
-html.is-desktop .btn-sidebar-toggle:hover {
-  color: #fff;
-  background: rgba(255, 255, 255, .12);
-}
-
-html.is-desktop .sidebar.collapsed .btn-sidebar-toggle {
-  transform: rotate(180deg);
-  margin-left: 0;
-}
-
-html.is-desktop .sidebar-section-header {
-  transition: opacity .15s ease;
-}
-
-html.is-desktop .sidebar.collapsed .sidebar-section-header {
-  opacity: 0;
-  pointer-events: none;
-  height: 0;
-  padding: 0;
-}
-
-html.is-desktop .sidebar-label {
-  transition: opacity .15s ease, max-width .22s ease;
+  transition:
+    opacity 0.15s ease,
+    max-width 0.22s ease;
   max-width: 200px;
+  overflow: hidden;
 }
 
-html.is-desktop .sidebar.collapsed .sidebar-label {
+.sidebar.collapsed .sidebar-label {
   opacity: 0;
   max-width: 0;
 }
 
-html.is-desktop .sidebar.collapsed .sidebar-item {
+.sidebar.collapsed .sidebar-item {
   justify-content: center;
   padding: 10px 0;
   overflow: visible;
 }
 
-html.is-desktop .sidebar.collapsed .sidebar-item::after {
+/* Tooltip — appears to the right of the 72px rail */
+.sidebar.collapsed .sidebar-item::after {
   content: attr(data-tooltip);
   position: fixed;
   left: 80px;
@@ -556,74 +545,1016 @@ html.is-desktop .sidebar.collapsed .sidebar-item::after {
   white-space: nowrap;
   pointer-events: none;
   opacity: 0;
-  transition: opacity .12s ease;
+  transition: opacity 0.12s ease;
   z-index: 1000;
-  box-shadow: 0 2px 8px rgba(0, 0, 0, .4);
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
 }
 
-html.is-desktop .sidebar.collapsed .sidebar-item:hover::after {
+.sidebar.collapsed .sidebar-item:hover::after {
   opacity: 1;
 }
 
-/* ── MOBILE sidebar (html.is-mobile) ─────────────────────────────── */
-html.is-mobile .sidebar {
-  /* Hidden by default — no layout space, no transitions to fight */
-  display: none;
-  position: fixed;
-  top: 0;
-  left: 0;
-  width: 280px;
-  height: 100%;
-  z-index: 90;
-  overflow-y: auto;
-  -webkit-overflow-scrolling: touch;
-  /* No width/opacity transitions on mobile */
+.sidebar-footer {
+  padding: 12px 0;
+  border-top: 1px solid rgba(255, 255, 255, 0.08);
 }
 
-html.is-mobile .sidebar.mobile-open {
+.folder-item {
+  justify-content: space-between;
+}
+
+.folder-label {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  flex: 1;
+  cursor: pointer;
+}
+
+.btn-delete-folder {
+  background: none;
+  border: none;
+  cursor: pointer;
+  font-size: 13px;
+  opacity: 0;
+  color: rgba(255, 255, 255, 0.6);
+  transition:
+    opacity var(--transition),
+    color var(--transition);
+  padding: 2px 4px;
+  border-radius: 4px;
+  flex-shrink: 0;
+}
+
+.folder-item:hover .btn-delete-folder {
+  opacity: 1;
+}
+
+.btn-delete-folder:hover {
+  color: #ff6b6b;
+}
+
+.btn-new-folder {
+  float: right;
+  margin-right: 4px;
+  background: none;
+  border: none;
+  color: rgba(255, 255, 255, 0.5);
+  font-size: 16px;
+  line-height: 1;
+  cursor: pointer;
+  padding: 0 4px;
+  transition: color var(--transition);
+}
+
+.btn-new-folder:hover {
+  color: #fff;
+}
+
+.new-folder-row {
+  padding: 4px 10px 4px 16px;
+}
+
+.new-folder-row form {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.new-folder-row input {
+  flex: 1;
+  padding: 5px 8px;
+  border-radius: 4px;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  background: rgba(255, 255, 255, 0.1);
+  color: #fff;
+  font-size: 13px;
+}
+
+.new-folder-row input::placeholder {
+  color: rgba(255, 255, 255, 0.4);
+}
+
+.new-folder-row input:focus {
+  outline: none;
+  border-color: rgba(255, 255, 255, 0.5);
+}
+
+.new-folder-row .btn-icon {
+  color: rgba(255, 255, 255, 0.7);
+  font-size: 14px;
+}
+
+.new-folder-row .btn-icon:hover {
+  color: #fff;
+  background: rgba(255, 255, 255, 0.1);
+}
+
+/* ── Vault main ──────────────────────────────────────────────────── */
+.vault-main {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  background: var(--color-bg);
+}
+
+#view-vault,
+#view-security {
+  display: flex;
+  flex-direction: column;
+  flex: 1;
+  overflow: hidden;
+  min-height: 0;
+  position: relative;
+}
+
+#view-vault.hidden,
+#view-security.hidden {
+  display: none;
+}
+
+.vault-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 16px 24px;
+  background: var(--color-surface);
+  border-bottom: 1px solid var(--color-border);
+  gap: 16px;
+}
+
+/* Inner wrapper constrains content width on very large screens */
+.vault-header-inner {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  width: 100%;
+  max-width: 900px;
+  margin: 0 auto;
+  gap: 16px;
+}
+
+.vault-title {
+  font-size: 18px;
+  font-weight: 600;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.vault-toolbar {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  flex: 1;
+  justify-content: flex-end;
+}
+
+.search-wrapper {
+  display: flex;
+  align-items: center;
+  background: var(--color-bg);
+  border: 1px solid var(--color-border);
+  border-radius: 20px;
+  padding: 6px 14px;
+  gap: 8px;
+  flex: 1;
+  max-width: 360px;
+}
+
+.search-icon {
+  color: var(--color-text-muted);
+}
+
+#search-input {
+  border: none;
+  background: none;
+  outline: none;
+  flex: 1;
+  font-size: 14px;
+}
+
+.btn-fab {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  background: var(--color-primary);
+  color: #fff;
+  font-size: 24px;
+  font-weight: 300;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 2px 8px rgba(208, 2, 27, 0.35);
+  transition:
+    background var(--transition),
+    box-shadow var(--transition);
+  flex-shrink: 0;
+}
+
+.btn-fab:hover {
+  background: var(--color-primary-dark);
+  box-shadow: 0 4px 14px rgba(208, 2, 27, 0.45);
+}
+
+/* ── Vault list ──────────────────────────────────────────────────── */
+/* Outer scroll container */
+.vault-list {
+  flex: 1;
+  overflow-y: auto;
+  padding: 12px 24px 24px;
+  -webkit-overflow-scrolling: touch;
+}
+
+/* Content max-width — keeps items readable on very wide screens */
+.vault-list-inner {
+  max-width: 900px;
+  margin: 0 auto;
+}
+
+.vault-group-header {
+  font-size: 12px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-text-muted);
+  padding: 16px 0 6px;
+  border-bottom: 1px solid var(--color-border);
+  margin-bottom: 4px;
+}
+
+.vault-empty {
+  text-align: center;
+  color: var(--color-text-muted);
+  padding: 60px 0;
+  font-size: 15px;
+}
+
+.vault-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius);
+  padding: 12px 14px;
+  margin-bottom: 6px;
+  cursor: pointer;
+  transition:
+    box-shadow var(--transition),
+    border-color var(--transition);
+}
+
+.vault-item:hover {
+  box-shadow: var(--shadow);
+  border-color: #c9ccd4;
+}
+
+.item-icon {
+  font-size: 22px;
+  flex-shrink: 0;
+}
+
+.item-info {
+  flex: 1;
+  min-width: 0;
+}
+
+.item-name {
+  display: block;
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.item-sub {
+  display: block;
+  font-size: 12px;
+  color: var(--color-text-muted);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+/* Actions always visible — no hover-only opacity trick on desktop */
+.item-actions {
+  display: flex;
+  gap: 4px;
+}
+
+.vault-item:hover .item-actions {
+  opacity: 1;
+}
+
+.btn-icon {
+  width: 36px;
+  height: 36px;
+  border-radius: 6px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 15px;
+  color: var(--color-text-muted);
+  transition:
+    background var(--transition),
+    color var(--transition);
+  /* Expand touch target without changing visual size */
+  touch-action: manipulation;
+}
+
+.btn-icon:hover {
+  background: var(--color-bg);
+  color: var(--color-text);
+}
+
+@media (max-width: 768px) {
+  .btn-icon {
+    min-width: 44px;
+    min-height: 44px;
+  }
+}
+
+/* ── Spinner ─────────────────────────────────────────────────────── */
+.spinner-overlay {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(255, 255, 255, 0.7);
+  z-index: 10;
+}
+
+.spinner-overlay.hidden {
+  display: none;
+}
+
+.spinner {
+  width: 36px;
+  height: 36px;
+  border: 3px solid var(--color-border);
+  border-top-color: var(--color-primary);
+  border-radius: 50%;
+  animation: spin 0.7s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+/* ── Modal ───────────────────────────────────────────────────────── */
+.modal-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.45);
+  display: none;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+  padding: 16px;
+}
+
+.modal-overlay.open {
+  display: flex;
+}
+
+.modal {
+  background: var(--color-surface);
+  border-radius: var(--radius);
+  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
+  width: 100%;
+  max-width: 480px;
+  max-height: 90vh;
+  max-height: calc(var(--vh, 1vh) * 90);
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  padding: 28px;
+}
+
+.modal-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 20px;
+}
+
+.modal-header h3 {
+  font-size: 18px;
+  font-weight: 600;
+}
+
+.btn-close {
+  font-size: 18px;
+  color: var(--color-text-muted);
+  padding: 4px;
+  border-radius: 4px;
+}
+
+.btn-close:hover {
+  background: var(--color-bg);
+  color: var(--color-text);
+}
+
+.modal-actions {
+  display: flex;
+  gap: 10px;
+  justify-content: flex-end;
+  margin-top: 20px;
+}
+
+.required {
+  color: var(--color-primary);
+}
+
+/* ── Toast ───────────────────────────────────────────────────────── */
+.toast {
+  position: fixed;
+  bottom: 24px;
+  left: 50%;
+  transform: translateX(-50%) translateY(20px);
+  background: #1a1a2e;
+  color: #fff;
+  padding: 10px 20px;
+  border-radius: 20px;
+  font-size: 14px;
+  font-weight: 500;
+  opacity: 0;
+  transition:
+    opacity 0.25s,
+    transform 0.25s;
+  pointer-events: none;
+  z-index: 200;
+  white-space: nowrap;
+}
+
+.toast.show {
+  opacity: 1;
+  transform: translateX(-50%) translateY(0);
+}
+
+.toast.toast-error {
+  background: #c00;
+}
+
+/* ── Unlock overlay ──────────────────────────────────────────────── */
+.modal-unlock {
+  max-width: 380px;
+}
+
+.unlock-logo {
+  margin-bottom: 16px;
+}
+
+.unlock-title {
+  margin-bottom: 4px;
+}
+
+.unlock-subtitle {
+  color: var(--color-text-muted);
+  font-size: 13px;
+  margin-bottom: 20px;
+}
+
+.btn-link {
+  padding: 10px 20px;
+  border-radius: var(--radius);
+  text-decoration: none;
+}
+
+/* ── Auth step hint ─────────────────────────────────────────────── */
+.auth-step-hint {
+  color: var(--color-text-muted);
+  font-size: 13px;
+  margin-bottom: 16px;
+}
+
+#mfa-code {
+  font-size: 22px;
+  letter-spacing: 0.2em;
+  text-align: center;
+}
+
+/* ── Panel body (sharing / emergency) ───────────────────────────── */
+.panel-body {
+  flex: 1;
+  overflow-y: auto;
+  padding: 20px 24px;
+  -webkit-overflow-scrolling: touch;
+}
+
+/* ── Tabs ────────────────────────────────────────────────────────── */
+.panel-tabs {
+  display: flex;
+  gap: 4px;
+  margin-bottom: 16px;
+  border-bottom: 2px solid var(--color-border);
+  padding-bottom: 0;
+}
+
+.tab-btn {
+  padding: 8px 16px;
+  border-radius: 6px 6px 0 0;
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--color-text-muted);
+  border-bottom: 2px solid transparent;
+  margin-bottom: -2px;
+  transition:
+    color var(--transition),
+    border-color var(--transition);
+}
+
+.tab-btn:hover {
+  color: var(--color-text);
+}
+
+.tab-btn.active {
+  color: var(--color-primary);
+  border-bottom-color: var(--color-primary);
+}
+
+/* ── Share / Emergency lists ────────────────────────────────────── */
+.share-list {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.share-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius);
+  padding: 12px 14px;
+}
+
+.share-icon {
+  font-size: 22px;
+  flex-shrink: 0;
+}
+
+.share-info {
+  flex: 1;
+  min-width: 0;
+}
+
+.share-name {
+  display: block;
+  font-weight: 500;
+}
+
+.share-meta {
+  display: block;
+  font-size: 12px;
+  color: var(--color-text-muted);
+  margin-top: 2px;
+}
+
+.share-actions {
+  display: flex;
+  gap: 6px;
+  align-items: center;
+  flex-shrink: 0;
+}
+
+/* ── Badges ──────────────────────────────────────────────────────── */
+.badge {
+  display: inline-block;
+  padding: 3px 8px;
+  border-radius: 12px;
+  font-size: 12px;
+  font-weight: 500;
+}
+
+.badge-warn {
+  background: #fff8e1;
+  color: #e65100;
+  border: 1px solid #ffb74d;
+}
+
+.badge-info {
+  background: #e3f2fd;
+  color: #1565c0;
+  border: 1px solid #90caf9;
+}
+
+/* ── Settings modal ──────────────────────────────────────────────── */
+.modal-settings {
+  max-width: 520px;
+}
+
+.settings-section {
+  padding: 16px 0;
+  border-bottom: 1px solid var(--color-border);
+}
+
+.settings-section:last-child {
+  border-bottom: none;
+}
+
+.settings-section-title {
+  font-size: 15px;
+  font-weight: 600;
+  margin-bottom: 8px;
+}
+
+.settings-desc {
+  font-size: 13px;
+  color: var(--color-text-muted);
+  margin-bottom: 10px;
+  line-height: 1.5;
+}
+
+.mfa-qr {
+  display: block;
+  margin: 12px auto;
+  max-width: 180px;
+  border: 1px solid var(--color-border);
+  border-radius: 4px;
+}
+
+.mfa-secret-text {
+  font-family: monospace;
+  font-size: 12px;
+}
+
+.mfa-secret-text code {
+  background: var(--color-bg);
+  padding: 2px 6px;
+  border-radius: 4px;
+  user-select: all;
+}
+
+/* ── Sort control ────────────────────────────────────────────────── */
+.sort-wrapper select {
+  padding: 6px 10px;
+  border: 1px solid var(--color-border);
+  border-radius: 20px;
+  background: var(--color-bg);
+  color: var(--color-text);
+  font-size: 13px;
+  cursor: pointer;
+  outline: none;
+}
+
+.sort-wrapper select:focus {
+  border-color: var(--color-primary);
+}
+
+/* ── Modal item (wider for address/card forms) ───────────────────── */
+.modal-item {
+  max-width: 540px;
+}
+
+/* ── Multi-column form rows ──────────────────────────────────────── */
+.form-row {
+  display: flex;
+  gap: 12px;
+}
+
+.form-row .form-group {
+  flex: 1;
+}
+
+/* ── Btn small ───────────────────────────────────────────────────── */
+.btn-sm {
+  padding: 5px 12px;
+  font-size: 12px;
+  border-radius: 6px;
+}
+
+/* ── Security dashboard ──────────────────────────────────────────── */
+.security-dashboard {
+  flex: 1;
+  overflow-y: auto;
+  padding: 24px;
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+  -webkit-overflow-scrolling: touch;
+}
+
+.sec-notice {
+  text-align: center;
+  color: var(--color-text-muted);
+  padding: 40px 0;
+  font-size: 15px;
+}
+
+.security-summary {
+  display: flex;
+  gap: 20px;
+  align-items: center;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius);
+  padding: 24px;
+  flex-wrap: wrap;
+}
+
+.sec-score-card {
+  text-align: center;
+  flex-shrink: 0;
+}
+
+.sec-score {
+  font-size: 56px;
+  font-weight: 700;
+  line-height: 1;
+}
+
+.sec-score.score-good {
+  color: #2e7d32;
+}
+
+.sec-score.score-fair {
+  color: #e65100;
+}
+
+.sec-score.score-poor {
+  color: #c62828;
+}
+
+.sec-score-label {
+  font-size: 16px;
+  font-weight: 600;
+  margin-top: 4px;
+}
+
+.sec-score-desc {
+  font-size: 12px;
+  color: var(--color-text-muted);
+  margin-top: 2px;
+}
+
+.sec-stats {
+  display: flex;
+  gap: 16px;
+  flex-wrap: wrap;
+}
+
+.sec-stat {
+  text-align: center;
+  background: var(--color-bg);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius);
+  padding: 12px 20px;
+  min-width: 80px;
+}
+
+.sec-stat-warn {
+  border-color: #ffb74d;
+  background: #fff8e1;
+}
+
+.sec-stat-info {
+  border-color: #90caf9;
+  background: #e3f2fd;
+}
+
+.sec-stat-ok {
+  border-color: #a5d6a7;
+  background: #e8f5e9;
+}
+
+.sec-stat-num {
+  display: block;
+  font-size: 28px;
+  font-weight: 700;
+}
+
+.sec-stat-label {
+  display: block;
+  font-size: 12px;
+  color: var(--color-text-muted);
+  margin-top: 2px;
+}
+
+.sec-section {
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius);
+  overflow: hidden;
+}
+
+.sec-section-header {
+  display: flex;
+  align-items: flex-start;
+  gap: 12px;
+  padding: 16px 20px;
+  border-bottom: 1px solid var(--color-border);
+  background: var(--color-bg);
+}
+
+.sec-section-icon {
+  font-size: 20px;
+  flex-shrink: 0;
+}
+
+.sec-section-title {
+  font-weight: 600;
+  font-size: 15px;
+}
+
+.sec-section-desc {
+  font-size: 12px;
+  color: var(--color-text-muted);
+  margin-top: 2px;
+}
+
+.sec-item-list {
+  padding: 0;
+}
+
+.sec-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 10px 20px;
+  border-bottom: 1px solid var(--color-border);
+}
+
+.sec-item:last-child {
+  border-bottom: none;
+}
+
+.sec-item-name {
+  font-weight: 500;
+  flex: 1;
+}
+
+.sec-item-sub {
+  font-size: 12px;
+  color: var(--color-text-muted);
+  flex: 1;
+}
+
+/* ── Item Detail Modal ───────────────────────────────────────────── */
+.modal-detail {
+  max-height: 80vh;
   display: flex;
   flex-direction: column;
 }
 
-/* Mobile sidebar always shows full labels regardless of collapsed state */
-html.is-mobile .sidebar .sidebar-label {
-  opacity: 1;
-  max-width: none;
+.detail-body {
+  flex: 1;
+  overflow-y: auto;
+  padding: 4px 0;
 }
 
-html.is-mobile .sidebar .sidebar-section-header {
-  opacity: 1;
-  height: auto;
-  padding: 12px 16px 4px;
-  pointer-events: auto;
+.detail-field {
+  display: flex;
+  align-items: flex-start;
+  gap: 12px;
+  padding: 10px 0;
+  border-bottom: 1px solid var(--color-border);
 }
 
-html.is-mobile .sidebar .sidebar-item {
-  justify-content: flex-start;
-  padding: 9px 16px;
+.detail-field:last-child {
+  border-bottom: none;
 }
 
-html.is-mobile .sidebar .sidebar-header {
-  justify-content: flex-start;
-  padding: 14px 12px;
+.detail-label {
+  font-size: 12px;
+  color: var(--color-text-muted);
+  width: 140px;
+  flex-shrink: 0;
+  padding-top: 4px;
 }
 
-html.is-mobile .sidebar .sidebar-header .logo-icon,
-html.is-mobile .sidebar .sidebar-header .logo-text {
-  opacity: 1;
-  width: auto;
-  pointer-events: auto;
+.detail-val-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  flex: 1;
+  flex-wrap: wrap;
 }
 
-html.is-mobile .sidebar .sidebar-item::after {
-  display: none;
+.detail-val {
+  font-size: 14px;
+  word-break: break-all;
 }
 
-html.is-mobile .btn-sidebar-toggle {
-  display: none;
+.detail-sensitive {
+  display: inline-flex;
+  align-items: center;
+  font-family: monospace;
+  font-size: 14px;
 }
 
-/* ── Mobile top bar — only on html.is-mobile ─────────────────────── */
+.detail-masked {
+  letter-spacing: 2px;
+}
+
+.detail-actual {
+  word-break: break-all;
+}
+
+.btn-reveal,
+.btn-copy-field {
+  background: none;
+  border: none;
+  cursor: pointer;
+  padding: 2px 4px;
+  font-size: 14px;
+  color: var(--color-text-muted);
+  flex-shrink: 0;
+}
+
+.btn-reveal:hover,
+.btn-copy-field:hover {
+  color: var(--color-primary);
+}
+
+/* ── Emergency Vault Panel ───────────────────────────────────────── */
+.em-vault-panel {
+  padding: 8px 0;
+}
+
+.em-vault-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 4px 0 16px;
+  border-bottom: 2px solid var(--color-border);
+  margin-bottom: 8px;
+}
+
+.em-vault-header h4 {
+  margin: 0;
+  font-size: 15px;
+  font-weight: 600;
+}
+
+.em-vault-list {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+}
+
+.em-vault-item {
+  border-bottom: 1px solid var(--color-border);
+}
+
+.em-vault-item:last-child {
+  border-bottom: none;
+}
+
+.em-vault-item-header {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  width: 100%;
+  background: none;
+  border: none;
+  padding: 12px 4px;
+  cursor: pointer;
+  text-align: left;
+}
+
+.em-vault-item-header:hover {
+  background: var(--color-sidebar-hover);
+  border-radius: var(--radius);
+}
+
+.em-vault-icon {
+  font-size: 18px;
+  flex-shrink: 0;
+}
+
+.em-vault-name {
+  font-weight: 500;
+  flex: 1;
+}
+
+.em-vault-type {
+  font-size: 12px;
+  color: var(--color-text-muted);
+}
+
+.em-vault-chevron {
+  font-size: 12px;
+  color: var(--color-text-muted);
+  flex-shrink: 0;
+}
+
+.em-vault-item-body {
+  padding: 0 8px 12px 36px;
+}
+
+.em-detail-body .detail-field {
+  padding: 8px 0;
+}
+
+/* ── Responsive ──────────────────────────────────────────────────── */
+
+/* Mobile top bar — hidden on tablet+ */
 .mobile-topbar {
   display: none;
   align-items: center;
@@ -638,13 +1569,9 @@ html.is-mobile .btn-sidebar-toggle {
   z-index: 50;
 }
 
-html.is-mobile .mobile-topbar {
-  display: flex;
-}
-
 .btn-mobile-menu {
   font-size: 22px;
-  color: rgba(255, 255, 255, .8);
+  color: rgba(255, 255, 255, 0.8);
   background: none;
   border: none;
   padding: 4px 6px;
@@ -675,7 +1602,7 @@ html.is-mobile .mobile-topbar {
   display: none;
   position: fixed;
   inset: 0;
-  background: rgba(0, 0, 0, .5);
+  background: rgba(0, 0, 0, 0.5);
   z-index: 89;
 }
 
@@ -683,116 +1610,192 @@ html.is-mobile .mobile-topbar {
   display: block;
 }
 
-/* ── App layout ──────────────────────────────────────────────────── */
-html.is-desktop .app-layout {
-  display: flex;
-  height: 100vh;
-  height: calc(var(--vh, 1vh) * 100);
+/* ── Phone + iPad portrait  (≤ 768px) ───────────────────────────── */
+@media (max-width: 768px) {
+  .app-layout {
+    flex-direction: column;
+    height: 100vh;
+    height: calc(var(--vh, 1vh) * 100);
+    overflow: hidden;
+  }
+
+  .mobile-topbar {
+    display: flex;
+  }
+
+  /* Sidebar: completely out of layout flow — fixed overlay only */
+  .sidebar {
+    display: none !important;
+    position: fixed !important;
+    top: 0;
+    left: 0;
+    bottom: 0;
+    width: 280px !important;
+    height: 100% !important;
+    /* Chrome needs explicit height on position:fixed */
+    z-index: 90;
+    overflow-y: auto;
+    -webkit-overflow-scrolling: touch;
+    transition: none;
+  }
+
+  .sidebar.mobile-open {
+    display: flex !important;
+    flex-direction: column;
+  }
+
+  /* Cancel all collapsed-state overrides inside mobile sidebar */
+  .sidebar.collapsed {
+    display: none !important;
+  }
+
+  .sidebar.collapsed.mobile-open {
+    display: flex !important;
+  }
+
+  /* Mobile sidebar: always show full expanded state */
+  .sidebar .sidebar-label {
+    opacity: 1 !important;
+    max-width: none !important;
+    overflow: visible !important;
+  }
+
+  .sidebar .sidebar-section-header {
+    opacity: 1 !important;
+    height: auto !important;
+    padding: 12px 16px 4px !important;
+    pointer-events: auto !important;
+  }
+
+  .sidebar .sidebar-item {
+    justify-content: flex-start !important;
+    padding: 9px 16px !important;
+    overflow: hidden !important;
+  }
+
+  .sidebar .sidebar-item::after {
+    display: none !important;
+  }
+
+  .sidebar .sidebar-header {
+    justify-content: flex-start !important;
+    padding: 14px 12px !important;
+    overflow: hidden !important;
+  }
+
+  .sidebar .sidebar-header .logo-icon,
+  .sidebar .sidebar-header .logo-text {
+    opacity: 1 !important;
+    width: auto !important;
+    pointer-events: auto !important;
+  }
+
+  .btn-sidebar-toggle {
+    display: none !important;
+  }
+
+  .vault-main {
+    flex: 1;
+    overflow: hidden;
+    min-height: 0;
+  }
+
+  .vault-header {
+    padding: 12px 16px;
+    gap: 8px;
+  }
+
+  .vault-title {
+    font-size: 16px;
+  }
+
+  .vault-list {
+    padding: 8px 12px 80px;
+  }
+
+  .panel-body {
+    padding: 16px;
+  }
+
+  .security-dashboard {
+    padding: 12px;
+    gap: 16px;
+  }
+
+  .vault-toolbar {
+    gap: 8px;
+  }
+
+  .search-wrapper {
+    max-width: none;
+  }
+
+  .sort-wrapper {
+    display: none;
+  }
+
+  .vault-header .btn-fab {
+    display: none;
+  }
+
+  .form-row {
+    flex-direction: column;
+    gap: 0;
+  }
+
+  .modal-actions {
+    flex-wrap: wrap;
+  }
+
+  .modal-overlay {
+    padding: 0;
+    align-items: flex-end;
+  }
+
+  .modal {
+    max-width: 100% !important;
+    max-height: calc(var(--vh, 1vh) * 92);
+    border-radius: 16px 16px 0 0;
+    padding: 20px 16px;
+  }
+
+  .security-summary {
+    padding: 16px;
+    gap: 12px;
+    flex-wrap: wrap;
+  }
+
+  .sec-score {
+    font-size: 40px;
+  }
+
+  .sec-stats {
+    gap: 8px;
+    flex-wrap: wrap;
+  }
+
+  .sec-stat {
+    padding: 8px 12px;
+    min-width: 68px;
+  }
+
+  .sec-stat-num {
+    font-size: 22px;
+  }
+
+  .detail-field {
+    flex-direction: column;
+    gap: 4px;
+  }
+
+  .detail-label {
+    width: auto;
+  }
 }
 
-html.is-mobile .app-layout {
-  display: flex;
-  flex-direction: column;
-  height: 100vh;
-  height: -webkit-fill-available;
-  height: calc(var(--vh, 1vh) * 100);
-  overflow: hidden;
-}
-
-/* ── Folder items ────────────────────────────────────────────────── */
-.folder-item {
-  justify-content: space-between;
-}
-
-.folder-label {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  flex: 1;
-  cursor: pointer;
-}
-
-.btn-delete-folder {
-  background: none;
-  border: none;
-  cursor: pointer;
-  font-size: 13px;
-  opacity: 0;
-  color: rgba(255, 255, 255, .6);
-  transition: opacity var(--transition), color var(--transition);
-  padding: 2px 4px;
-  border-radius: 4px;
-  flex-shrink: 0;
-}
-
-.folder-item:hover .btn-delete-folder {
-  opacity: 1;
-}
-
-.btn-delete-folder:hover {
-  color: #ff6b6b;
-}
-
-.btn-new-folder {
-  float: right;
-  margin-right: 4px;
-  background: none;
-  border: none;
-  color: rgba(255, 255, 255, .5);
-  font-size: 16px;
-  line-height: 1;
-  cursor: pointer;
-  padding: 0 4px;
-  transition: color var(--transition);
-}
-
-.btn-new-folder:hover {
-  color: #fff;
-}
-
-.new-folder-row {
-  padding: 4px 10px 4px 16px;
-}
-
-.new-folder-row form {
-  display: flex;
-  align-items: center;
-  gap: 4px;
-}
-
-.new-folder-row input {
-  flex: 1;
-  padding: 5px 8px;
-  border-radius: 4px;
-  border: 1px solid rgba(255, 255, 255, .2);
-  background: rgba(255, 255, 255, .1);
-  color: #fff;
-  font-size: 13px;
-}
-
-.new-folder-row input::placeholder {
-  color: rgba(255, 255, 255, .4);
-}
-
-.new-folder-row input:focus {
-  outline: none;
-  border-color: rgba(255, 255, 255, .5);
-}
-
-.new-folder-row .btn-icon {
-  color: rgba(255, 255, 255, .7);
-  font-size: 14px;
-}
-
-.new-folder-row .btn-icon:hover {
-  color: #fff;
-  background: rgba(255, 255, 255, .1);
-}
-
-/* ── Breakpoint-driven padding adjustments ───────────────────────── */
-/* Tablet (769–1024px) */
+/* ── iPad landscape / small laptop  (769px – 1024px) ─────────────── */
 @media (min-width: 769px) and (max-width: 1024px) {
-  html.is-desktop .sidebar:not(.collapsed) {
+  .sidebar:not(.collapsed) {
     width: 200px;
   }
 
@@ -832,9 +1835,24 @@ html.is-mobile .app-layout {
   }
 }
 
-/* Large PC (> 1440px) */
+/* ── Laptop  (1025px – 1440px) ───────────────────────────────────── */
+@media (min-width: 1025px) and (max-width: 1440px) {
+  .vault-header {
+    padding: 16px 24px;
+  }
+
+  .vault-list {
+    padding: 12px 24px 24px;
+  }
+
+  .security-dashboard {
+    padding: 20px 24px;
+  }
+}
+
+/* ── Large PC  (> 1440px) ────────────────────────────────────────── */
 @media (min-width: 1441px) {
-  html.is-desktop .sidebar:not(.collapsed) {
+  .sidebar:not(.collapsed) {
     width: 260px;
   }
 
@@ -876,106 +1894,7 @@ html.is-mobile .app-layout {
   }
 }
 
-/* Mobile padding and layout overrides */
-html.is-mobile .vault-main {
-  flex: 1;
-  overflow: hidden;
-  min-height: 0;
-}
-
-html.is-mobile .vault-header {
-  padding: 12px 16px;
-  gap: 8px;
-}
-
-html.is-mobile .vault-title {
-  font-size: 16px;
-}
-
-html.is-mobile .vault-list {
-  padding: 8px 12px 80px;
-}
-
-html.is-mobile .panel-body {
-  padding: 16px;
-}
-
-html.is-mobile .security-dashboard {
-  padding: 12px;
-  gap: 16px;
-}
-
-html.is-mobile .vault-toolbar {
-  gap: 8px;
-}
-
-html.is-mobile .search-wrapper {
-  max-width: none;
-}
-
-html.is-mobile .sort-wrapper {
-  display: none;
-}
-
-html.is-mobile .vault-header .btn-fab {
-  display: none;
-}
-
-html.is-mobile .form-row {
-  flex-direction: column;
-  gap: 0;
-}
-
-html.is-mobile .modal-actions {
-  flex-wrap: wrap;
-}
-
-html.is-mobile .modal-overlay {
-  padding: 0;
-  align-items: flex-end;
-}
-
-html.is-mobile .modal {
-  max-width: 100%;
-  max-height: calc(var(--vh, 1vh) * 92);
-  border-radius: 16px 16px 0 0;
-  padding: 20px 16px;
-}
-
-html.is-mobile .security-summary {
-  padding: 16px;
-  gap: 12px;
-  flex-wrap: wrap;
-}
-
-html.is-mobile .sec-score {
-  font-size: 40px;
-}
-
-html.is-mobile .sec-stats {
-  gap: 8px;
-  flex-wrap: wrap;
-}
-
-html.is-mobile .sec-stat {
-  padding: 8px 12px;
-  min-width: 68px;
-}
-
-html.is-mobile .sec-stat-num {
-  font-size: 22px;
-}
-
-html.is-mobile .detail-field {
-  flex-direction: column;
-  gap: 4px;
-}
-
-html.is-mobile .detail-label {
-  width: auto;
-}
-
-/* Auth page — phone */
+/* ── Auth pages — phone ──────────────────────────────────────────── */
 @media (max-width: 480px) {
   .auth-container {
     padding: 12px;
@@ -991,13 +1910,6 @@ html.is-mobile .detail-label {
   }
 }
 
-/* iOS input font-size — prevent auto-zoom on focus */
-html.is-mobile .form-group input,
-html.is-mobile .form-group select,
-html.is-mobile .form-group textarea {
-  font-size: 16px;
-}
-
 /* ── Settings — new sections (Phase 6) ──────────────────────────── */
 .settings-section-danger {
   border-top: 2px solid var(--color-danger, #e53e3e);
@@ -1018,15 +1930,15 @@ html.is-mobile .form-group textarea {
   font-size: 14px;
   font-weight: 500;
   cursor: pointer;
-  transition: opacity .15s;
+  transition: opacity 0.15s;
 }
 
 .btn-danger:hover {
-  opacity: .85;
+  opacity: 0.85;
 }
 
 .btn-danger:disabled {
-  opacity: .5;
+  opacity: 0.5;
   cursor: not-allowed;
 }
 
@@ -1044,7 +1956,7 @@ html.is-mobile .form-group textarea {
 .recovery-code-box code {
   font-family: monospace;
   font-size: 15px;
-  letter-spacing: .08em;
+  letter-spacing: 0.08em;
   word-break: break-all;
   flex: 1;
 }