diff --git a/src/router-public.ts b/src/router-public.ts
index f11fae1..0d4235c 100644
--- a/src/router-public.ts
+++ b/src/router-public.ts
@@ -66,6 +66,15 @@ function handleNwFavicon(): Response {
   });
 }
 
+function handleMissingWebsiteIcon(): Response {
+  return new Response(null, {
+    status: 404,
+    headers: {
+      'Cache-Control': 'public, max-age=300',
+    },
+  });
+}
+
 function buildIconServiceBase(origin: string): string {
   return `${origin}/icons`;
 }
@@ -127,9 +136,9 @@ function normalizeIconHost(rawHost: string): string | null {
   }
 }
 
-async function handleWebsiteIcon(host: string): Promise<Response> {
+async function handleWebsiteIcon(host: string, fallbackMode: 'default' | 'not-found' = 'default'): Promise<Response> {
   const normalizedHost = normalizeIconHost(host);
-  if (!normalizedHost) return handleNwFavicon();
+  if (!normalizedHost) return fallbackMode === 'not-found' ? handleMissingWebsiteIcon() : handleNwFavicon();
 
   const encodedHost = encodeURIComponent(normalizedHost);
   const requestHeaders = { 'User-Agent': 'NodeWarden/1.0' };
@@ -172,9 +181,9 @@ async function handleWebsiteIcon(host: string): Promise<Response> {
       });
     }
 
-    return handleNwFavicon();
+    return fallbackMode === 'not-found' ? handleMissingWebsiteIcon() : handleNwFavicon();
   } catch {
-    return handleNwFavicon();
+    return fallbackMode === 'not-found' ? handleMissingWebsiteIcon() : handleNwFavicon();
   }
 }
 
@@ -221,7 +230,8 @@ export async function handlePublicRoute(
 
   const iconMatch = path.match(/^\/icons\/([^/]+)\/icon\.png$/i);
   if (iconMatch && method === 'GET') {
-    return handleWebsiteIcon(iconMatch[1]);
+    const fallbackMode = new URL(request.url).searchParams.get('fallback') === '404' ? 'not-found' : 'default';
+    return handleWebsiteIcon(iconMatch[1], fallbackMode);
   }
 
   const publicAttachmentMatch = path.match(/^\/api\/attachments\/([a-f0-9-]+)\/([a-f0-9-]+)$/i);
diff --git a/webapp/src/components/TotpCodesPage.tsx b/webapp/src/components/TotpCodesPage.tsx
index a3b5a85..85ea016 100644
--- a/webapp/src/components/TotpCodesPage.tsx
+++ b/webapp/src/components/TotpCodesPage.tsx
@@ -65,6 +65,10 @@ function TotpListIcon({ cipher }: { cipher: Cipher }) {
   const uri = firstCipherUri(cipher);
   const host = hostFromUri(uri);
   const [errored, setErrored] = useState(() => (host ? failedIconHosts.has(host) : false));
+  useEffect(() => {
+    setErrored(host ? failedIconHosts.has(host) : false);
+  }, [host]);
+
   if (host && !errored) {
     return (
       <img
diff --git a/webapp/src/components/vault/vault-page-helpers.tsx b/webapp/src/components/vault/vault-page-helpers.tsx
index 3e39280..b9cda6d 100644
--- a/webapp/src/components/vault/vault-page-helpers.tsx
+++ b/webapp/src/components/vault/vault-page-helpers.tsx
@@ -1,4 +1,4 @@
-import { useState } from 'preact/hooks';
+import { useEffect, useState } from 'preact/hooks';
 import {
   CreditCard,
   FileKey2,
@@ -161,7 +161,7 @@ export function hostFromUri(uri: string): string {
 }
 
 export function websiteIconUrl(host: string): string {
-  return `/icons/${encodeURIComponent(host)}/icon.png`;
+  return `/icons/${encodeURIComponent(host)}/icon.png?fallback=404`;
 }
 
 export function createEmptyLoginUri(): VaultDraftLoginUri {
@@ -433,6 +433,10 @@ export function VaultListIcon({ cipher }: { cipher: Cipher }) {
   const uri = firstCipherUri(cipher);
   const host = hostFromUri(uri);
   const [errored, setErrored] = useState(() => (host ? failedIconHosts.has(host) : false));
+  useEffect(() => {
+    setErrored(host ? failedIconHosts.has(host) : false);
+  }, [host]);
+
   if (host && !errored) {
     return (
       <img
diff --git a/webapp/src/lib/api/vault-sync.ts b/webapp/src/lib/api/vault-sync.ts
index 4dc2474..722df98 100644
--- a/webapp/src/lib/api/vault-sync.ts
+++ b/webapp/src/lib/api/vault-sync.ts
@@ -14,7 +14,13 @@ export async function loadVaultSyncSnapshot(authedFetch: AuthedFetch): Promise<V
   if (existing) return existing;
 
   const request = (async () => {
-    const resp = await authedFetch('/api/sync');
+    const resp = await authedFetch('/api/sync', {
+      cache: 'no-store',
+      headers: {
+        'Cache-Control': 'no-cache',
+        Pragma: 'no-cache',
+      },
+    });
     if (!resp.ok) throw new Error('Failed to load vault');
     const body = await parseJson<VaultSyncResponse>(resp);
     return body || {};
diff --git a/webapp/src/styles.css b/webapp/src/styles.css
index f1a8e30..b5acc8b 100644
--- a/webapp/src/styles.css
+++ b/webapp/src/styles.css
@@ -1,5086 +1,12 @@
-:root {
-  --bg: #e7edf8;
-  --bg-accent: #e7edf8;
-  --panel: #f9fbff;
-  --panel-soft: #f2f6fd;
-  --panel-muted: #e8eff9;
-  --line: rgba(128, 152, 192, 0.32);
-  --line-soft: rgba(143, 167, 206, 0.18);
-  --text: #0b1730;
-  --text-soft: #1a2d52;
-  --muted: #60708b;
-  --muted-strong: #334765;
-  --primary: #2563eb;
-  --primary-hover: #1d4ed8;
-  --primary-strong: #0f3f98;
-  --primary-soft: rgba(37, 99, 235, 0.12);
-  --danger: #d92d57;
-  --danger-hover: #b81f47;
-  --overlay: rgba(15, 23, 42, 0.4);
-  --overlay-strong: rgba(15, 23, 42, 0.56);
-  --shadow-sm: 0 10px 22px rgba(13, 31, 68, 0.045);
-  --shadow-md: 0 22px 48px rgba(13, 31, 68, 0.08);
-  --shadow-lg: 0 28px 76px rgba(13, 31, 68, 0.11);
-  --radius: 16px;
-  --ease-out-strong: cubic-bezier(0.22, 1, 0.36, 1);
-  --ease-out-soft: cubic-bezier(0.24, 0.8, 0.32, 1);
-  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
-  --dur-micro: 140ms;
-  --dur-fast: 180ms;
-  --dur-medium: 240ms;
-  --dur-panel: 280ms;
-  --actions-gap: clamp(0px, calc((100vw - 520px) * 1), 10px);
-}
-
-:root[data-theme='dark'] {
-  --bg: #06111d;
-  --bg-accent: #06111d;
-  --panel: #0d192b;
-  --panel-soft: #112136;
-  --panel-muted: #0a1626;
-  --line: rgba(108, 141, 190, 0.28);
-  --line-soft: rgba(120, 152, 198, 0.16);
-  --text: #edf4ff;
-  --text-soft: #d9e6fb;
-  --muted: #8fa6c6;
-  --muted-strong: #c3d5ef;
-  --primary: #84b6ff;
-  --primary-hover: #a6ccff;
-  --primary-strong: #f3f8ff;
-  --primary-soft: rgba(132, 182, 255, 0.18);
-  --danger: #ff8ba8;
-  --danger-hover: #ffabc0;
-  --overlay: rgba(2, 8, 20, 0.68);
-  --overlay-strong: rgba(2, 8, 20, 0.84);
-  --shadow-sm: 0 14px 28px rgba(1, 7, 18, 0.24);
-  --shadow-md: 0 24px 52px rgba(1, 7, 18, 0.36);
-  --shadow-lg: 0 34px 88px rgba(1, 7, 18, 0.46);
-}
-
-* {
-  box-sizing: border-box;
-}
-
-html,
-body,
-#root {
-  margin: 0;
-  padding: 0;
-  width: 100%;
-  height: 100%;
-  color: var(--text);
-  background: var(--bg-accent);
-  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
-}
-
-body {
-  position: relative;
-  transition:
-    background-color var(--dur-medium) var(--ease-smooth),
-    color var(--dur-medium) var(--ease-smooth);
-}
-
-body.dialog-open {
-  overflow: hidden;
-  overscroll-behavior: contain;
-}
-
-body::before {
-  content: none;
-}
-
-:root[data-theme='dark'] body::before {
-  content: none;
-}
-
-.loading-screen {
-  height: 100%;
-  display: grid;
-  place-items: center;
-  color: var(--muted);
-  font-size: 18px;
-  animation: fade-in-up var(--dur-panel) var(--ease-out-strong) both;
-}
-
-.auth-page {
-  min-height: 100%;
-  display: grid;
-  place-items: center;
-  padding: 24px;
-  position: relative;
-  background: transparent;
-}
-
-.public-send-page {
-  min-height: 80vh;
-  align-items: center;
-  justify-items: center;
-}
-
-.auth-card {
-  width: 100%;
-  position: relative;
-  background: var(--panel);
-  border: 1px solid var(--line);
-  border-radius: 24px;
-  box-shadow: var(--shadow-lg);
-  padding: 30px;
-  overflow: hidden;
-  transform-origin: 50% 24%;
-  animation: surface-enter 520ms var(--ease-out-strong) both;
-}
-
-.auth-card::before {
-  content: none;
-}
-
-.auth-card h1 {
-  margin: 0 0 4px 0;
-  text-align: center;
-}
-
-.standalone-shell {
-  width: min(640px, 100%);
-  display: grid;
-  gap: 14px;
-  animation: fade-in-up 420ms var(--ease-out-strong) both;
-}
-
-.standalone-brand {
-  display: inline-flex;
-  align-items: center;
-  gap: 14px;
-  margin-bottom: 12px;
-}
-
-.standalone-brand-outside {
-  justify-content: center;
-  width: 100%;
-  margin-bottom: 2px;
-}
-
-.standalone-brand-logo {
-  width: 56px;
-  height: 56px;
-  object-fit: contain;
-  flex-shrink: 0;
-  filter: drop-shadow(0 8px 18px rgba(43, 102, 217, 0.22));
-}
-
-.standalone-brand-title {
-  font-size: 40px;
-  font-weight: 800;
-  line-height: 0.96;
-  letter-spacing: -0.04em;
-  color: var(--text);
-  text-shadow: 0 10px 22px rgba(255, 255, 255, 0.26);
-}
-
-.standalone-brand-wordmark {
-  display: block;
-  height: auto;
-  width: clamp(200px, 30vw, 360px);
-  max-width: 100%;
-  filter: drop-shadow(0 10px 22px rgba(43, 102, 217, 0.18));
-}
-
-.standalone-title {
-  margin: 0 0 4px 0;
-  text-align: left;
-  font-size: 31px;
-  line-height: 1.15;
-  letter-spacing: -0.035em;
-}
-
-.standalone-muted {
-  text-align: left;
-}
-
-.jwt-warning-head {
-  display: flex;
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-  justify-content: center;
-  gap: 10px;
-  margin-bottom: 10px;
-  color: #b45309;
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-}
-
-.jwt-warning-box {
-  border: 1px solid #f1d8a5;
-  border-radius: 12px;
-  background: #fffaf0;
-  padding: 12px 14px;
-}
-
-.jwt-warning-label {
-  font-size: 13px;
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-  color: #92400e;
-  margin-bottom: 6px;
-}
-
-.jwt-warning-copy {
-  margin: 0 0 14px;
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-}
-
-.jwt-warning-list {
-  margin: 0;
-  padding-left: 18px;
-  color: #334155;
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-
-.jwt-inline-link {
-  color: #1d4ed8;
-  font-weight: 700;
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-
-.jwt-inline-link:hover {
-  text-decoration: underline;
-}
-
-.jwt-secret-fields {
-  margin-top: 8px;
-  display: grid;
-  gap: 6px;
-}
-
-.jwt-secret-row {
-  display: grid;
-  grid-template-columns: 88px minmax(0, 1fr);
-  gap: 8px;
-  align-items: start;
-}
-
-.jwt-secret-row > span {
-  color: #64748b;
-}
-
-.jwt-generator {
-  margin-top: 14px;
-}
-
-.jwt-generator-actions {
-  margin-top: 10px;
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  flex-wrap: wrap;
-}
-
-.jwt-copy-hint {
-  color: #15803d;
-  font-size: 13px;
-  font-weight: 700;
-}
-
-.standalone-footer {
-  width: 100%;
-  text-align: center;
-  font-size: 13px;
-  color: #64748b;
-}
-
-.standalone-footer a {
-  color: #1d4ed8;
-  font-weight: 700;
-  text-decoration: none;
-}
-
-.standalone-footer a:hover {
-  text-decoration: underline;
-}
-
-.standalone-version {
-  font-weight: 700;
-  color: #1d4ed8;
-}
-
-.muted {
-  margin: 0 0 16px 0;
-  text-align: center;
-  color: var(--muted);
-  line-height: 1.65;
-}
-
-.field {
-  display: block;
-  margin-bottom: 14px;
-}
-
-.field > span {
-  display: block;
-  margin-bottom: 8px;
-  font-size: 14px;
-  font-weight: 600;
-}
-
-.input {
-  width: 100%;
-  height: 48px;
-  border: 1px solid rgba(74, 103, 150, 0.42);
-  border-radius: 14px;
-  padding: 10px 14px;
-  font-size: 16px;
-  outline: none;
-  color: var(--text);
-  background: var(--panel);
-  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
-  transition:
-    border-color var(--dur-fast) var(--ease-smooth),
-    box-shadow var(--dur-fast) var(--ease-out-soft),
-    background-color var(--dur-fast) var(--ease-smooth),
-    transform var(--dur-fast) var(--ease-out-soft);
-}
-
-select.input {
-  appearance: none;
-  -webkit-appearance: none;
-  -moz-appearance: none;
-  padding-right: 42px;
-  background-image:
-    linear-gradient(45deg, transparent 50%, #365fa8 50%),
-    linear-gradient(135deg, #365fa8 50%, transparent 50%);
-  background-position:
-    calc(100% - 18px) calc(50% - 3px),
-    calc(100% - 12px) calc(50% - 3px);
-  background-size: 6px 6px, 6px 6px;
-  background-repeat: no-repeat;
-}
-
-input[type='file'].input {
-  height: auto;
-  min-height: 48px;
-  padding: 8px 10px;
-  font-size: 14px;
-  line-height: 1.4;
-}
-
-input[type='file'].input::file-selector-button {
-  height: 32px;
-  border: 1px solid #3f5b9e;
-  border-radius: 999px;
-  padding: 0 12px;
-  background: #eef4ff;
-  color: #1f4ea0;
-  font-weight: 700;
-  cursor: pointer;
-  margin-right: 10px;
-}
-
-input[type='file'].input::file-selector-button:hover {
-  background: #dfeaff;
-  border-color: #2f5fd8;
-}
-
-.textarea {
-  min-height: 110px;
-  height: auto;
-  resize: vertical;
-}
-
-.input:focus {
-  border-color: rgba(43, 102, 217, 0.6);
-  background-color: #fbfdff;
-  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.11), 0 10px 20px rgba(37, 99, 235, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
-  transform: translateY(-1px);
-}
-
-.input-readonly {
-  background: #eef2f7;
-  color: #475569;
-}
-
-.input:disabled {
-  background: #e2e8f0;
-  border-color: #cbd5e1;
-  color: #94a3b8;
-  cursor: not-allowed;
-}
-
-.password-wrap {
-  position: relative;
-}
-
-.password-wrap .input {
-  padding-right: 44px;
-}
-
-.password-toggle {
-  position: absolute;
-  right: 8px;
-  top: 50%;
-  transform: translateY(-50%);
-  border: none;
-  background: transparent;
-  color: #275ac2;
-  cursor: pointer;
-  display: grid;
-  place-items: center;
-  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft);
-}
-
-.eye-btn {
-  position: absolute;
-  right: 10px;
-  bottom: 9px;
-  width: 30px;
-  height: 30px;
-  border: none;
-  background: transparent;
-  cursor: pointer;
-  display: grid;
-  place-items: center;
-  color: #334155;
-  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft);
-}
-
-.password-toggle:hover,
-.eye-btn:hover {
-  color: var(--primary);
-  transform: translateY(-1px) scale(1.04);
-}
-
-.btn {
-  height: 36px;
-  border: 1px solid transparent;
-  border-radius: 999px;
-  padding: 0 16px;
-  font-size: 15px;
-  font-weight: 700;
-  cursor: pointer;
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  gap: 6px;
-  text-decoration: none;
-  transition:
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-    box-shadow var(--dur-fast) var(--ease-out-soft),
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-    border-color var(--dur-fast) var(--ease-smooth),
-    color var(--dur-fast) var(--ease-smooth),
-    opacity var(--dur-fast) var(--ease-smooth);
-}
-
-.topbar-actions .btn,
-.user-chip,
-.side-link,
-.mobile-tab {
-  --mag-x: 0px;
-  --mag-y: 0px;
-  position: relative;
-  overflow: hidden;
-}
-
-.topbar-actions .btn::before,
-.user-chip::before,
-.side-link::before,
-.mobile-tab::before {
-  content: '';
-  position: absolute;
-  left: var(--mx, 50%);
-  top: var(--my, 50%);
-  width: 110px;
-  height: 110px;
-  border-radius: 999px;
-  background: radial-gradient(circle, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0.08) 42%, transparent 72%);
-  transform: translate(-50%, -50%) scale(0.68);
-  opacity: 0;
-  pointer-events: none;
-  transition:
-    opacity var(--dur-fast) var(--ease-smooth),
-    transform var(--dur-medium) var(--ease-out-soft);
-}
-
-.topbar-actions .btn:hover::before,
-.user-chip:hover::before,
-.side-link:hover::before,
-.mobile-tab:hover::before {
-  opacity: 1;
-  transform: translate(-50%, -50%) scale(1);
-}
-
-.btn:hover:not(:disabled) {
-  transform: translateY(-2px) scale(1.01);
-}
-
-.btn:active:not(:disabled) {
-  transform: translateY(0) scale(0.985);
-}
-
-.btn-icon {
-  flex-shrink: 0;
-}
-
-.btn.full {
-  width: 100%;
-  height: 50px;
-  font-size: 22px;
-  margin: 10px 0;
-}
-
-.btn-primary {
-  background: linear-gradient(135deg, #2563eb, #3b82f6 72%);
-  border-color: rgba(15, 63, 152, 0.32);
-  color: #fff;
-  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.24);
-}
-
-.btn-primary:hover {
-  background: linear-gradient(135deg, #1d4ed8, #3377f0 72%);
-  border-color: rgba(15, 63, 152, 0.38);
-  box-shadow: 0 18px 34px rgba(37, 99, 235, 0.28);
-}
-
-.btn-secondary {
-  background: var(--panel);
-  border-color: rgba(37, 99, 235, 0.22);
-  color: var(--primary-strong);
-  box-shadow: 0 8px 18px rgba(13, 31, 68, 0.05);
-}
-
-.btn-secondary:hover {
-  background: #f4f8ff;
-  border-color: rgba(37, 99, 235, 0.34);
-}
-
-.btn-danger {
-  background: rgba(255, 255, 255, 0.8);
-  border-color: rgba(217, 45, 87, 0.28);
-  color: var(--danger);
-}
-
-.btn-danger:hover {
-  background: rgba(255, 241, 242, 0.96);
-  border-color: rgba(217, 45, 87, 0.38);
-}
-
-.btn:disabled {
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-  border-color: #cbd5e1;
-  color: #94a3b8;
-  cursor: not-allowed;
-}
-
-.or {
-  text-align: center;
-  margin: 10px 0;
-  color: #334155;
-}
-
-.field-help {
-  margin-top: 8px;
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-  line-height: 1.5;
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-
-.auth-support-row {
-  display: flex;
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-  justify-content: space-between;
-  gap: 10px;
-  margin: -2px 0 12px;
-}
-
-.auth-link-btn {
-  border: none;
-  background: transparent;
-  padding: 0;
-  color: #1d4ed8;
-  font-size: 13px;
-  font-weight: 700;
-  cursor: pointer;
-  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
-}
-
-.auth-link-btn:hover {
-  text-decoration: underline;
-  transform: translateX(2px);
-}
-
-.auth-link-btn:disabled {
-  color: #94a3b8;
-  cursor: not-allowed;
-  text-decoration: none;
-}
-
-.app-page {
-  min-height: 100%;
-  padding: 20px;
-  position: relative;
-  background: transparent;
-}
-
-.app-shell {
-  height: calc(100vh - 40px);
-  max-width: 1600px;
-  margin: 0 auto;
-  position: relative;
-  background: var(--panel-soft);
-  border: 1px solid var(--line);
-  border-radius: 28px;
-  box-shadow: var(--shadow-lg);
-  display: flex;
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-    right: 0;
-    top: calc(var(--mobile-topbar-height) + env(safe-area-inset-top));
-    bottom: calc(var(--mobile-tabbar-height) + env(safe-area-inset-bottom));
-    z-index: 35;
-    overflow: auto;
-    background: transparent;
-    padding: 0 0 18px;
-    opacity: 0;
-    visibility: hidden;
-    pointer-events: none;
-    transform: translate3d(0, 18px, 0);
-    transition:
-      opacity 220ms var(--ease-smooth),
-      transform 260ms var(--ease-out-soft),
-      visibility 220ms var(--ease-smooth);
-  }
-
-  .mobile-detail-sheet.open {
-    opacity: 1;
-    visibility: visible;
-    pointer-events: auto;
-    transform: translate3d(0, 0, 0);
-  }
-
-  .mobile-panel-head {
-    display: flex;
-    align-items: center;
-    margin: 0 10px 10px;
-  }
-
-  .mobile-panel-back {
-    min-height: 40px;
-  }
-
-  .mobile-detail-sheet > .detail-switch-stage,
-  .mobile-detail-sheet > .card,
-  .mobile-detail-sheet > .empty {
-    margin-left: 10px;
-    margin-right: 10px;
-  }
-
-  .detail-col .card,
-  .import-export-panel,
-  .backup-panel,
-  .settings-subcard {
-    border-radius: 16px;
-  }
-
-  .card {
-    padding: 14px 14px;
-    box-shadow: 0px 0px 22px rgba(13, 31, 68, .06) ！important;
-  }
-
-  .section-head {
-    align-items: flex-start;
-    gap: 10px;
-    flex-direction: column;
-  }
-
-  .detail-actions {
-    flex-direction: column;
-    align-items: stretch;
-    gap: 10px;
-  }
-
-  .detail-actions .actions {
-    width: 100%;
-  }
-
-  .detail-actions .actions .btn,
-  .detail-delete-btn {
-    width: 100%;
-  }
-
-  .kv-row {
-    grid-template-columns: minmax(64px, 80px) minmax(0, 1fr) auto;
-    align-items: center;
-  }
-
-  .kv-line {
-    flex-direction: row;
-    align-items: center;
-    justify-content: space-between;
-  }
-
-  .kv-actions {
-    width: auto;
-    justify-content: flex-end;
-    flex-wrap: nowrap;
-  }
-
-  .kv-actions .btn.small {
-    width: 34px;
-    min-width: 34px;
-    height: 34px;
-    padding: 0;
-    font-size: 0;
-    gap: 0;
-    border-radius: 999px;
-  }
-
-  .kv-actions .btn.small .btn-icon {
-    margin: 0;
-  }
-
-  .import-export-panels,
-  .backup-combined-grid,
-  .backup-status-grid,
-  .settings-twofactor-grid {
-    gap: 10px;
-  }
-
-  .import-export-panel .actions .btn,
-  .backup-panel .actions .btn,
-  .settings-subcard .actions .btn,
-  .section-head .actions .btn {
-    width: 100%;
-  }
-
-  .totp-grid {
-    gap: 10px;
-  }
-
-  .totp-qr {
-    min-height: 180px;
-  }
-
-  .totp-qr svg,
-  .totp-qr img {
-    width: 160px;
-    height: 160px;
-  }
-
-  .invite-toolbar {
-    align-items: stretch;
-  }
-
-  .mobile-settings-card {
-    min-height: calc(100dvh - 170px);
-    display: flex;
-    flex-direction: column;
-    gap: 12px;
-  }
-
-  .mobile-settings-subhead {
-    display: flex;
-    align-items: center;
-  }
-
-  .mobile-settings-back {
-    min-height: 38px;
-  }
-
-  .mobile-settings-links {
-    display: grid;
-    gap: 8px;
-    align-content: start;
-  }
-
-  .mobile-settings-link {
-    display: flex;
-    align-items: center;
-    gap: 10px;
-    min-height: 46px;
-    padding: 0 12px;
-    border: 1px solid #dbe2ec;
-    border-radius: 14px;
-    background: #f8fafc;
-    color: #0f172a;
-    text-decoration: none;
-    font-weight: 700;
-  }
-
-  .mobile-settings-link.active {
-    background: #e8f0ff;
-    border-color: #b9cff6;
-    color: #175ddc;
-  }
-
-  .mobile-settings-logout {
-    width: 100%;
-    margin-top: auto;
-  }
-
-  .stack,
-  .import-export-page,
-  .totp-codes-page,
-  .detail-col {
-    min-height: auto;
-  }
-
-  .invite-create-group {
-    align-items: stretch;
-    width: 100%;
-  }
-
-  .input.small {
-    width: 100%;
-  }
-
-  .table,
-  .table tbody,
-  .table tr,
-  .table td {
-    display: block;
-    width: 100%;
-  }
-
-  .table thead {
-    display: none;
-  }
-
-  .table tr {
-    border: 1px solid var(--line);
-    border-radius: 14px;
-    background: #fff;
-    padding: 10px 12px;
-    margin-bottom: 10px;
-  }
-
-  .table td {
-    border-bottom: 1px solid #edf1f6;
-    padding: 10px 0;
-  }
-
-  .table td:last-child {
-    border-bottom: none;
-    padding-bottom: 0;
-  }
-
-  .table td::before {
-    display: block;
-    content: attr(data-label);
-    margin-bottom: 4px;
-    color: #64748b;
-    font-size: 12px;
-    font-weight: 700;
-  }
-
-  .dialog-mask {
-    align-items: center;
-    justify-items: center;
-    padding: 16px;
-  }
-
-  .dialog-card {
-    width: 90%;
-    max-width: 460px;
-    max-height: calc(100dvh - 10px);
-    overflow: auto;
-    border-radius: 22px;
-    padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
-  }
-
-  .dialog-card.warning {
-    max-width: 520px;
-  }
-
-  .dialog-warning-strip {
-    margin: -18px -16px 16px;
-  }
-
-  .dialog-title {
-    font-size: 24px;
-  }
-
-  .dialog-btn {
-    height: 46px;
-    font-size: 16px;
-  }
-
-.toast-stack {
-  top: 10px;
-  left: 10px;
-  right: 10px;
-  width: auto;
-}
-}
-
-@media (max-width: 900px) {
-  .backup-grid {
-    grid-template-columns: 1fr;
-  }
-
-  .backup-operations-sidebar,
-  .backup-destination-sidebar {
-    position: static;
-  }
-}
-
-@media (max-width: 640px) {
-  .backup-interval-row {
-    grid-template-columns: 1fr;
-  }
-
-  .backup-status-grid,
-  .backup-browser-row,
-  .field-grid {
-    grid-template-columns: 1fr;
-  }
-
-  .backup-destination-top {
-    align-items: flex-start;
-    flex-direction: column;
-  }
-
-  .backup-add-chooser {
-    flex-direction: column;
-  }
-
-  .backup-name-row {
-    grid-template-columns: 1fr;
-  }
-
-  .backup-option-field {
-    align-items: flex-start;
-  }
-
-  .backup-help-bubble {
-    left: 0;
-    transform: translate(0, -4px);
-  }
-
-  .backup-help-bubble::before {
-    left: 16px;
-    transform: rotate(45deg);
-  }
-
-  .backup-help-wrap:hover .backup-help-bubble,
-  .backup-help-wrap:focus-within .backup-help-bubble,
-  .backup-help-wrap.open .backup-help-bubble {
-    transform: translate(0, 0);
-  }
-}
-
-:root[data-theme='dark'] body,
-:root[data-theme='dark'] #root,
-:root[data-theme='dark'] .app-page,
-:root[data-theme='dark'] .auth-page {
-  background: transparent;
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .app-shell,
-:root[data-theme='dark'] .auth-card,
-:root[data-theme='dark'] .dialog,
-:root[data-theme='dark'] .standalone-frame,
-:root[data-theme='dark'] .jwt-warning-box,
-:root[data-theme='dark'] .backup-operations-sidebar,
-:root[data-theme='dark'] .backup-destination-sidebar,
-:root[data-theme='dark'] .backup-detail-panel,
-:root[data-theme='dark'] .settings-subcard,
-:root[data-theme='dark'] .backup-recommendation,
-:root[data-theme='dark'] .backup-browser-card,
-:root[data-theme='dark'] .backup-settings-card,
-:root[data-theme='dark'] .backup-destination-card,
-:root[data-theme='dark'] .backup-operation-card,
-:root[data-theme='dark'] .list-panel,
-:root[data-theme='dark'] .card,
-:root[data-theme='dark'] .sidebar-block,
-:root[data-theme='dark'] .send-detail-card,
-:root[data-theme='dark'] .admin-card,
-:root[data-theme='dark'] .empty {
-  background: var(--panel);
-  border-color: var(--line);
-  color: var(--text);
-  box-shadow: var(--shadow-lg);
-}
-
-:root[data-theme='dark'] .topbar,
-:root[data-theme='dark'] .mobile-tabbar,
-:root[data-theme='dark'] .sort-menu,
-:root[data-theme='dark'] .create-menu,
-:root[data-theme='dark'] .dialog-card,
-:root[data-theme='dark'] .mobile-sidebar-sheet,
-:root[data-theme='dark'] .mobile-detail-sheet,
-:root[data-theme='dark'] .mobile-editor-sheet {
-  background: var(--panel-soft);
-  border-color: var(--line);
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .dialog-card.warning {
-  border-color: rgba(248, 113, 113, 0.36);
-  background: linear-gradient(180deg, rgba(39, 16, 16, 0.98), rgba(27, 12, 12, 0.98));
-  box-shadow:
-    0 36px 90px rgba(5, 5, 5, 0.56),
-    0 0 0 1px rgba(248, 113, 113, 0.12) inset;
-}
-
-:root[data-theme='dark'] .dialog-mask.warning {
-  background:
-    radial-gradient(circle at top, rgba(127, 29, 29, 0.28), transparent 34%),
-    linear-gradient(180deg, rgba(20, 12, 12, 0.64), rgba(2, 6, 23, 0.82));
-}
-
-:root[data-theme='dark'] .dialog-warning-badge {
-  background: linear-gradient(180deg, rgba(127, 29, 29, 0.8), rgba(69, 10, 10, 0.86));
-  color: #fda4af;
-  box-shadow:
-    0 12px 30px rgba(0, 0, 0, 0.32),
-    0 0 0 1px rgba(248, 113, 113, 0.14) inset;
-}
-
-:root[data-theme='dark'] .dialog-warning-kicker,
-:root[data-theme='dark'] .dialog-card.warning .dialog-title {
-  color: #fecaca;
-}
-
-:root[data-theme='dark'] .dialog-message.warning {
-  border-color: rgba(248, 113, 113, 0.18);
-  background: linear-gradient(180deg, rgba(69, 10, 10, 0.54), rgba(67, 20, 7, 0.46));
-  color: #fecdd3;
-  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18) inset;
-}
-
-:root[data-theme='dark'] .app-side,
-:root[data-theme='dark'] .sidebar,
-:root[data-theme='dark'] .mobile-sidebar-sheet .sidebar-block {
-  background: var(--panel-muted);
-  border-color: var(--line);
-}
-
-:root[data-theme='dark'] .app-shell::before {
-  content: none;
-}
-
-:root[data-theme='dark'] .auth-card {
-  background: var(--panel);
-}
-
-:root[data-theme='dark'] .auth-card::before {
-  content: none;
-}
-
-:root[data-theme='dark'] .brand,
-:root[data-theme='dark'] .brand-name,
-:root[data-theme='dark'] .mobile-page-title,
-:root[data-theme='dark'] .detail-title,
-:root[data-theme='dark'] .dialog-title,
-:root[data-theme='dark'] .standalone-title,
-:root[data-theme='dark'] .standalone-brand-title,
-:root[data-theme='dark'] .kv-main strong,
-:root[data-theme='dark'] .list-title,
-:root[data-theme='dark'] .sidebar-title,
-:root[data-theme='dark'] .backup-title,
-:root[data-theme='dark'] .backup-section-title,
-:root[data-theme='dark'] h1,
-:root[data-theme='dark'] h2,
-:root[data-theme='dark'] h3,
-:root[data-theme='dark'] h4 {
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .standalone-brand-title,
-:root[data-theme='dark'] .brand-name,
-:root[data-theme='dark'] .standalone-brand-wordmark,
-:root[data-theme='dark'] .brand-wordmark {
-  text-shadow: 0 16px 28px rgba(2, 6, 23, 0.32);
-}
-
-:root[data-theme='dark'] .muted,
-:root[data-theme='dark'] .detail-sub,
-:root[data-theme='dark'] .field-help,
-:root[data-theme='dark'] .list-sub,
-:root[data-theme='dark'] .kv-label,
-:root[data-theme='dark'] .standalone-muted,
-:root[data-theme='dark'] .standalone-footer,
-:root[data-theme='dark'] .backup-inline-note,
-:root[data-theme='dark'] .backup-meta,
-:root[data-theme='dark'] .backup-browser-empty,
-:root[data-theme='dark'] .dialog-copy,
-:root[data-theme='dark'] .or,
-:root[data-theme='dark'] .txt-muted,
-:root[data-theme='dark'] .mobile-tab,
-:root[data-theme='dark'] .side-link,
-:root[data-theme='dark'] .user-chip,
-:root[data-theme='dark'] .folder-meta,
-:root[data-theme='dark'] .list-count {
-  color: var(--muted);
-}
-
-:root[data-theme='dark'] .user-chip {
-  background: rgba(17, 34, 56, 0.94);
-  border-color: var(--line);
-  box-shadow: 0 12px 24px rgba(1, 7, 18, 0.24);
-}
-
-:root[data-theme='dark'] .side-link:hover,
-:root[data-theme='dark'] .mobile-tab:hover {
-  background: rgba(132, 182, 255, 0.11);
-}
-
-:root[data-theme='dark'] .side-link.active,
-:root[data-theme='dark'] .mobile-tab.active,
-:root[data-theme='dark'] .sort-menu-item.active,
-:root[data-theme='dark'] .filter-link.active,
-:root[data-theme='dark'] .folder-link.active,
-:root[data-theme='dark'] .list-item.active,
-:root[data-theme='dark'] .backup-mode-pill.active,
-:root[data-theme='dark'] .segmented-item.active {
-  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.08));
-  border-color: rgba(132, 182, 255, 0.28);
-  color: var(--primary);
-}
-
-:root[data-theme='dark'] .input,
-:root[data-theme='dark'] .textarea,
-:root[data-theme='dark'] select.input,
-:root[data-theme='dark'] .dialog input,
-:root[data-theme='dark'] .dialog textarea,
-:root[data-theme='dark'] .dialog select {
-  background: rgba(13, 24, 40, 0.94);
-  border-color: rgba(103, 136, 186, 0.36);
-  color: var(--text);
-  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
-}
-
-:root[data-theme='dark'] .input::placeholder,
-:root[data-theme='dark'] .textarea::placeholder,
-:root[data-theme='dark'] input::placeholder,
-:root[data-theme='dark'] textarea::placeholder {
-  color: #7488a8;
-}
-
-:root[data-theme='dark'] .input:focus,
-:root[data-theme='dark'] .textarea:focus,
-:root[data-theme='dark'] .search-input:focus,
-:root[data-theme='dark'] .dialog input:focus,
-:root[data-theme='dark'] .dialog textarea:focus,
-:root[data-theme='dark'] .dialog select:focus {
-  border-color: rgba(132, 182, 255, 0.54);
-  background-color: rgba(16, 30, 49, 0.98);
-  box-shadow: 0 0 0 4px rgba(132, 182, 255, 0.12), 0 10px 22px rgba(5, 13, 28, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.04);
-}
-
-:root[data-theme='dark'] select.input {
-  background-image:
-    linear-gradient(45deg, transparent 50%, #8fb8ff 50%),
-    linear-gradient(135deg, #8fb8ff 50%, transparent 50%);
-}
-
-:root[data-theme='dark'] .input-readonly {
-  background: #0f1b2d;
-  color: var(--muted-strong);
-}
-
-:root[data-theme='dark'] .input:disabled,
-:root[data-theme='dark'] .btn:disabled {
-  background: #132033;
-  border-color: #22334c;
-  color: #70829d;
-}
-
-:root[data-theme='dark'] .btn-secondary {
-  background: linear-gradient(180deg, rgba(22, 41, 66, 0.98), rgba(16, 31, 52, 0.98));
-  border-color: rgba(132, 182, 255, 0.22);
-  color: #a9cdff;
-  box-shadow: 0 12px 22px rgba(1, 7, 18, 0.18);
-}
-
-:root[data-theme='dark'] .btn-secondary:hover {
-  background: linear-gradient(180deg, rgba(26, 49, 79, 0.98), rgba(19, 37, 61, 0.98));
-  border-color: rgba(132, 182, 255, 0.3);
-}
-
-:root[data-theme='dark'] .btn-danger {
-  background: linear-gradient(180deg, rgba(45, 23, 33, 0.98), rgba(35, 18, 28, 0.98));
-  border-color: rgba(255, 139, 168, 0.38);
-  color: #ff9bb0;
-}
-
-:root[data-theme='dark'] .btn-danger:hover {
-  background: linear-gradient(180deg, rgba(56, 27, 40, 0.98), rgba(41, 19, 31, 0.98));
-  border-color: rgba(255, 171, 192, 0.42);
-}
-
-:root[data-theme='dark'] .btn-primary {
-  background: linear-gradient(135deg, #79acff, #57c2ff 76%);
-  border-color: rgba(176, 214, 255, 0.22);
-  color: #061120;
-  box-shadow: 0 18px 32px rgba(10, 26, 52, 0.34);
-}
-
-:root[data-theme='dark'] .btn-primary:hover {
-  background: linear-gradient(135deg, #90bcff, #6accff 76%);
-  box-shadow: 0 22px 36px rgba(10, 26, 52, 0.38);
-}
-
-:root[data-theme='dark'] .toolbar.actions,
-:root[data-theme='dark'] .list-head,
-:root[data-theme='dark'] .mobile-panel-head,
-:root[data-theme='dark'] .backup-recommendation-header,
-:root[data-theme='dark'] .backup-operations-sidebar,
-:root[data-theme='dark'] .backup-destination-sidebar,
-:root[data-theme='dark'] .backup-detail-panel,
-:root[data-theme='dark'] .dialog-actions,
-:root[data-theme='dark'] .detail-actions,
-:root[data-theme='dark'] .topbar,
-:root[data-theme='dark'] .app-side,
-:root[data-theme='dark'] .kv-row,
-:root[data-theme='dark'] .attachment-row,
-:root[data-theme='dark'] .backup-browser-row,
-:root[data-theme='dark'] .admin-row,
-:root[data-theme='dark'] .send-row {
-  border-color: var(--line);
-}
-
-:root[data-theme='dark'] .input,
-:root[data-theme='dark'] .search-input,
-:root[data-theme='dark'] .list-item,
-:root[data-theme='dark'] .sidebar-block {
-  background: rgba(15, 28, 45, 0.94);
-}
-
-:root[data-theme='dark'] .sidebar,
-:root[data-theme='dark'] .content,
-:root[data-theme='dark'] .list-col,
-:root[data-theme='dark'] .detail-col {
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .mobile-sidebar-mask,
-:root[data-theme='dark'] .dialog-mask,
-:root[data-theme='dark'] .modal-mask {
-  background: var(--overlay-strong);
-}
-
-:root[data-theme='dark'] .toast {
-  background: linear-gradient(180deg, rgba(19, 34, 54, 0.98), rgba(14, 26, 42, 0.98));
-  border-color: #263a57;
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .toast.success {
-  background: #0f2a1f;
-  border-color: #1f5b44;
-  color: #9be2bd;
-}
-
-:root[data-theme='dark'] .toast.error {
-  background: #2a1720;
-  border-color: #6c2b41;
-  color: #ffb1c0;
-}
-
-:root[data-theme='dark'] .toast.warning {
-  background: #2d2413;
-  border-color: #7b6230;
-  color: #f7d48b;
-}
-
-:root[data-theme='dark'] .jwt-warning-head,
-:root[data-theme='dark'] .jwt-warning-label,
-:root[data-theme='dark'] .jwt-warning-copy,
-:root[data-theme='dark'] .jwt-warning-list {
-  color: #f4d48a;
-}
-
-:root[data-theme='dark'] .theme-switch-input:focus + .theme-switch-slider {
-  box-shadow: 0 0 0 2px rgba(132, 182, 255, 0.24);
-}
-
-:root[data-theme='dark'] .search-input,
-:root[data-theme='dark'] .list-head .search-input,
-:root[data-theme='dark'] .mobile-settings-card,
-:root[data-theme='dark'] .mobile-settings-link,
-:root[data-theme='dark'] .table tr,
-:root[data-theme='dark'] .settings-subcard,
-:root[data-theme='dark'] .backup-operations-sidebar,
-:root[data-theme='dark'] .backup-destination-sidebar,
-:root[data-theme='dark'] .backup-detail-panel,
-:root[data-theme='dark'] .dialog-card,
-:root[data-theme='dark'] .backup-browser-path,
-:root[data-theme='dark'] .backup-browser-list,
-:root[data-theme='dark'] .backup-schedule-current,
-:root[data-theme='dark'] .backup-status-card,
-:root[data-theme='dark'] .create-menu,
-:root[data-theme='dark'] .create-menu-item,
-:root[data-theme='dark'] .sort-menu,
-:root[data-theme='dark'] .sort-menu-item,
-:root[data-theme='dark'] .import-export-feature-item,
-:root[data-theme='dark'] .import-export-feature-icon,
-:root[data-theme='dark'] .backup-recommendation-card,
-:root[data-theme='dark'] .backup-recommendation-dav-item,
-:root[data-theme='dark'] .backup-destination-item,
-:root[data-theme='dark'] .totp-code-row,
-:root[data-theme='dark'] .list-item {
-  background:
-    linear-gradient(180deg, rgba(18, 32, 52, 0.92), rgba(14, 26, 42, 0.92));
-  border-color: var(--line);
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .list-item:hover,
-:root[data-theme='dark'] .sort-menu-item:hover,
-:root[data-theme='dark'] .create-menu-item:hover,
-:root[data-theme='dark'] .mobile-settings-link:hover,
-:root[data-theme='dark'] .backup-destination-item:hover,
-:root[data-theme='dark'] .import-export-feature-item:hover {
-  background:
-    linear-gradient(180deg, rgba(24, 44, 70, 0.96), rgba(16, 31, 51, 0.96));
-  border-color: rgba(118, 150, 197, 0.32);
-}
-
-:root[data-theme='dark'] .list-item.active {
-  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.1));
-  border-color: rgba(122, 176, 255, 0.34);
-  box-shadow: inset 0 0 0 1px rgba(200, 225, 255, 0.06), 0 12px 24px rgba(5, 13, 28, 0.18);
-}
-
-:root[data-theme='dark'] .list-item::before {
-  background:
-    linear-gradient(90deg, rgba(132, 182, 255, 0.08), transparent 24%, transparent 76%, rgba(56, 189, 248, 0.08)),
-    radial-gradient(circle at 18px 50%, rgba(255, 255, 255, 0.06), transparent 44%);
-}
-
-:root[data-theme='dark'] .backup-destination-item.active,
-:root[data-theme='dark'] .backup-interval-preset.active,
-:root[data-theme='dark'] .mobile-settings-link.active,
-:root[data-theme='dark'] .tree-btn.active {
-  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.1));
-  border-color: rgba(132, 182, 255, 0.34);
-  color: #f4f8ff;
-}
-
-:root[data-theme='dark'] .theme-switch-slider {
-  background: linear-gradient(180deg, #1d3659, #142845);
-  border-color: rgba(120, 152, 198, 0.34);
-}
-
-:root[data-theme='dark'] .theme-switch-slider::before {
-  background: linear-gradient(180deg, #f8fbff, #dce9ff);
-  box-shadow: 0 3px 10px rgba(2, 8, 20, 0.28);
-}
-
-:root[data-theme='dark'] .theme-switch .moon svg {
-  fill: #8db6ff;
-}
-
-:root[data-theme='dark'] .theme-switch .sun svg {
-  opacity: 0.82;
-}
-
-:root[data-theme='dark'] .totp-code-name,
-:root[data-theme='dark'] .backup-destination-name,
-:root[data-theme='dark'] .backup-browser-entry,
-:root[data-theme='dark'] .mobile-settings-link,
-:root[data-theme='dark'] .backup-browser-path strong,
-:root[data-theme='dark'] .backup-status-grid strong,
-:root[data-theme='dark'] .backup-option-label,
-:root[data-theme='dark'] .sort-menu-item,
-:root[data-theme='dark'] .create-menu-item,
-:root[data-theme='dark'] .tree-btn,
-:root[data-theme='dark'] .folder-add-btn,
-:root[data-theme='dark'] .list-icon-fallback,
-:root[data-theme='dark'] .totp-code-main strong,
-:root[data-theme='dark'] .totp-timer-value {
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .totp-code-username,
-:root[data-theme='dark'] .backup-destination-meta,
-:root[data-theme='dark'] .backup-browser-meta,
-:root[data-theme='dark'] .table td::before,
-:root[data-theme='dark'] .backup-file-meta,
-:root[data-theme='dark'] .backup-list,
-:root[data-theme='dark'] .backup-recommendation-step,
-:root[data-theme='dark'] .backup-recommendation-inline-note,
-:root[data-theme='dark'] .backup-recommendation-linked-item,
-:root[data-theme='dark'] .backup-recommendation-referral,
-:root[data-theme='dark'] .backup-retention-suffix,
-:root[data-theme='dark'] .backup-inline-suffix,
-:root[data-theme='dark'] .folder-delete-btn,
-:root[data-theme='dark'] .folder-add-btn:hover,
-:root[data-theme='dark'] .tree-label,
-:root[data-theme='dark'] .list-sub {
-  color: var(--muted);
-}
-
-:root[data-theme='dark'] .import-export-feature-item p,
-:root[data-theme='dark'] .import-export-hero-sub,
-:root[data-theme='dark'] .import-export-panel p,
-:root[data-theme='dark'] .dialog-message,
-:root[data-theme='dark'] .local-error,
-:root[data-theme='dark'] .status-ok {
-  color: var(--muted);
-}
-
-:root[data-theme='dark'] .backup-destination-type {
-  background: #1d3048;
-  color: #c9d8eb;
-}
-
-:root[data-theme='dark'] .backup-help-trigger {
-  border-color: #38618f;
-  background: #173150;
-  color: #9ec5ff;
-}
-
-:root[data-theme='dark'] .backup-help-trigger:hover,
-:root[data-theme='dark'] .backup-help-trigger:focus-visible {
-  border-color: #5f92d7;
-  background: #20426a;
-}
-
-:root[data-theme='dark'] .backup-help-bubble {
-  background: var(--panel);
-  border-color: var(--line);
-  color: var(--text);
-}
-
-:root[data-theme='dark'] .backup-help-bubble::before {
-  background: var(--panel);
-  border-left-color: var(--line);
-  border-top-color: var(--line);
-}
-
-:root[data-theme='dark'] .table td {
-  border-bottom-color: #203047;
-}
-
-:root[data-theme='dark'] .dialog-icon {
-  color: #f7d48b;
-}
-
-:root[data-theme='dark'] .local-error {
-  color: #ff9bb0;
-}
-
-:root[data-theme='dark'] .status-ok {
-  color: #9be2bd;
-}
-
-:root[data-theme='dark'] .totp-qr {
-  background: #ffffff;
-  border-color: rgba(15, 23, 42, 0.12);
-}
-
-:root[data-theme='dark'] .totp-qr svg,
-:root[data-theme='dark'] .totp-qr img {
-  background: #ffffff;
-  border-radius: 8px;
-}
-
-@media (prefers-reduced-motion: reduce) {
-  html {
-    scroll-behavior: auto;
-  }
-
-  *,
-  *::before,
-  *::after {
-    animation-duration: 1ms !important;
-    animation-iteration-count: 1 !important;
-    transition-duration: 1ms !important;
-    scroll-behavior: auto !important;
-  }
-
-  .btn:hover:not(:disabled),
-  .btn:active:not(:disabled),
-  .side-link:hover,
-  .tree-btn:hover,
-  .list-item:hover,
-  .list-item.active,
-  .search-input:focus,
-  .input:focus,
-  .password-toggle:hover,
-  .eye-btn:hover,
-  .auth-link-btn:hover,
-  .sort-menu-item:hover,
-  .create-menu-item:hover,
-  .toast-close:hover,
-  .mobile-sidebar-close:hover {
-    transform: none !important;
-  }
-}
+@import './styles/tokens.css';
+@import './styles/base.css';
+@import './styles/auth.css';
+@import './styles/forms.css';
+@import './styles/shell.css';
+@import './styles/vault.css';
+@import './styles/management.css';
+@import './styles/overlays.css';
+@import './styles/motion.css';
+@import './styles/responsive.css';
+@import './styles/dark.css';
+@import './styles/reduced-motion.css';
diff --git a/webapp/src/styles/auth.css b/webapp/src/styles/auth.css
new file mode 100644
index 0000000..6af30d3
--- /dev/null
+++ b/webapp/src/styles/auth.css
@@ -0,0 +1,193 @@
+.loading-screen {
+  height: 100%;
+  display: grid;
+  place-items: center;
+  color: var(--muted);
+  font-size: 18px;
+  animation: fade-in-up var(--dur-panel) var(--ease-out-strong) both;
+}
+
+.auth-page {
+  min-height: 100%;
+  display: grid;
+  place-items: center;
+  padding: 24px;
+  position: relative;
+  background: transparent;
+}
+
+.public-send-page {
+  min-height: 80vh;
+  align-items: center;
+  justify-items: center;
+}
+
+.auth-card {
+  width: 100%;
+  position: relative;
+  background: var(--panel);
+  border: 1px solid var(--line);
+  border-radius: 24px;
+  box-shadow: var(--shadow-lg);
+  padding: 30px;
+  overflow: hidden;
+  transform-origin: 50% 24%;
+  animation: surface-enter 520ms var(--ease-out-strong) both;
+}
+
+.auth-card h1 {
+  margin: 0 0 4px 0;
+  text-align: center;
+}
+
+.standalone-shell {
+  width: min(640px, 100%);
+  display: grid;
+  gap: 14px;
+  animation: fade-in-up 420ms var(--ease-out-strong) both;
+}
+
+.standalone-brand {
+  display: inline-flex;
+  align-items: center;
+  gap: 14px;
+  margin-bottom: 12px;
+}
+
+.standalone-brand-outside {
+  justify-content: center;
+  width: 100%;
+  margin-bottom: 2px;
+}
+
+.standalone-brand-logo {
+  width: 56px;
+  height: 56px;
+  object-fit: contain;
+  flex-shrink: 0;
+  filter: drop-shadow(0 8px 18px rgba(43, 102, 217, 0.22));
+}
+
+.standalone-brand-wordmark {
+  display: block;
+  height: auto;
+  width: clamp(200px, 30vw, 360px);
+  max-width: 100%;
+  filter: drop-shadow(0 10px 22px rgba(43, 102, 217, 0.18));
+}
+
+.standalone-title {
+  margin: 0 0 4px 0;
+  text-align: left;
+  font-size: 31px;
+  line-height: 1.15;
+  letter-spacing: -0.035em;
+}
+
+.standalone-muted {
+  text-align: left;
+}
+
+.jwt-warning-head {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 10px;
+  margin-bottom: 10px;
+  color: #b45309;
+  text-align: center;
+}
+
+.jwt-warning-box {
+  border: 1px solid #f1d8a5;
+  border-radius: 12px;
+  background: #fffaf0;
+  padding: 12px 14px;
+}
+
+.jwt-warning-label {
+  font-size: 13px;
+  font-weight: 700;
+  color: #92400e;
+  margin-bottom: 6px;
+}
+
+.jwt-warning-copy {
+  margin: 0 0 14px;
+  color: #475569;
+  line-height: 1.6;
+}
+
+.jwt-warning-list {
+  margin: 0;
+  padding-left: 18px;
+  color: #334155;
+  line-height: 1.55;
+}
+
+.jwt-inline-link {
+  color: #1d4ed8;
+  font-weight: 700;
+  text-decoration: none;
+}
+
+.jwt-inline-link:hover {
+  text-decoration: underline;
+}
+
+.jwt-secret-fields {
+  margin-top: 8px;
+  display: grid;
+  gap: 6px;
+}
+
+.jwt-secret-row {
+  display: grid;
+  grid-template-columns: 88px minmax(0, 1fr);
+  gap: 8px;
+  align-items: start;
+}
+
+.jwt-secret-row > span {
+  color: #64748b;
+}
+
+.jwt-generator {
+  margin-top: 14px;
+}
+
+.jwt-generator-actions {
+  margin-top: 10px;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  flex-wrap: wrap;
+}
+
+.jwt-copy-hint {
+  color: #15803d;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.standalone-footer {
+  width: 100%;
+  text-align: center;
+  font-size: 13px;
+  color: #64748b;
+}
+
+.standalone-footer a {
+  color: #1d4ed8;
+  font-weight: 700;
+  text-decoration: none;
+}
+
+.standalone-footer a:hover {
+  text-decoration: underline;
+}
+
+.standalone-version {
+  font-weight: 700;
+  color: #1d4ed8;
+}
diff --git a/webapp/src/styles/base.css b/webapp/src/styles/base.css
new file mode 100644
index 0000000..1707d52
--- /dev/null
+++ b/webapp/src/styles/base.css
@@ -0,0 +1,27 @@
+* {
+  box-sizing: border-box;
+}
+
+html,
+body,
+#root {
+  margin: 0;
+  padding: 0;
+  width: 100%;
+  height: 100%;
+  color: var(--text);
+  background: var(--bg-accent);
+  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
+}
+
+body {
+  position: relative;
+  transition:
+    background-color var(--dur-medium) var(--ease-smooth),
+    color var(--dur-medium) var(--ease-smooth);
+}
+
+body.dialog-open {
+  overflow: hidden;
+  overscroll-behavior: contain;
+}
diff --git a/webapp/src/styles/dark.css b/webapp/src/styles/dark.css
new file mode 100644
index 0000000..16359c9
--- /dev/null
+++ b/webapp/src/styles/dark.css
@@ -0,0 +1,458 @@
+:root[data-theme='dark'] body,
+:root[data-theme='dark'] #root,
+:root[data-theme='dark'] .app-page,
+:root[data-theme='dark'] .auth-page {
+  background: transparent;
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .app-shell,
+:root[data-theme='dark'] .auth-card,
+:root[data-theme='dark'] .dialog,
+:root[data-theme='dark'] .jwt-warning-box,
+:root[data-theme='dark'] .backup-operations-sidebar,
+:root[data-theme='dark'] .backup-destination-sidebar,
+:root[data-theme='dark'] .backup-detail-panel,
+:root[data-theme='dark'] .settings-subcard,
+:root[data-theme='dark'] .list-panel,
+:root[data-theme='dark'] .card,
+:root[data-theme='dark'] .sidebar-block,
+:root[data-theme='dark'] .empty {
+  background: var(--panel);
+  border-color: var(--line);
+  color: var(--text);
+  box-shadow: var(--shadow-lg);
+}
+
+:root[data-theme='dark'] .topbar,
+:root[data-theme='dark'] .mobile-tabbar,
+:root[data-theme='dark'] .sort-menu,
+:root[data-theme='dark'] .create-menu,
+:root[data-theme='dark'] .dialog-card,
+:root[data-theme='dark'] .mobile-sidebar-sheet,
+:root[data-theme='dark'] .mobile-detail-sheet {
+  background: var(--panel-soft);
+  border-color: var(--line);
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .dialog-card.warning {
+  border-color: rgba(248, 113, 113, 0.36);
+  background: linear-gradient(180deg, rgba(39, 16, 16, 0.98), rgba(27, 12, 12, 0.98));
+  box-shadow:
+    0 36px 90px rgba(5, 5, 5, 0.56),
+    0 0 0 1px rgba(248, 113, 113, 0.12) inset;
+}
+
+:root[data-theme='dark'] .dialog-mask.warning {
+  background:
+    radial-gradient(circle at top, rgba(127, 29, 29, 0.28), transparent 34%),
+    linear-gradient(180deg, rgba(20, 12, 12, 0.64), rgba(2, 6, 23, 0.82));
+}
+
+:root[data-theme='dark'] .dialog-warning-badge {
+  background: linear-gradient(180deg, rgba(127, 29, 29, 0.8), rgba(69, 10, 10, 0.86));
+  color: #fda4af;
+  box-shadow:
+    0 12px 30px rgba(0, 0, 0, 0.32),
+    0 0 0 1px rgba(248, 113, 113, 0.14) inset;
+}
+
+:root[data-theme='dark'] .dialog-warning-kicker,
+:root[data-theme='dark'] .dialog-card.warning .dialog-title {
+  color: #fecaca;
+}
+
+:root[data-theme='dark'] .dialog-message.warning {
+  border-color: rgba(248, 113, 113, 0.18);
+  background: linear-gradient(180deg, rgba(69, 10, 10, 0.54), rgba(67, 20, 7, 0.46));
+  color: #fecdd3;
+  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18) inset;
+}
+
+:root[data-theme='dark'] .app-side,
+:root[data-theme='dark'] .sidebar,
+:root[data-theme='dark'] .mobile-sidebar-sheet .sidebar-block {
+  background: var(--panel-muted);
+  border-color: var(--line);
+}
+
+:root[data-theme='dark'] .auth-card {
+  background: var(--panel);
+}
+
+:root[data-theme='dark'] .brand,
+:root[data-theme='dark'] .mobile-page-title,
+:root[data-theme='dark'] .detail-title,
+:root[data-theme='dark'] .dialog-title,
+:root[data-theme='dark'] .standalone-title,
+:root[data-theme='dark'] .kv-main strong,
+:root[data-theme='dark'] .list-title,
+:root[data-theme='dark'] .sidebar-title,
+:root[data-theme='dark'] h1,
+:root[data-theme='dark'] h2,
+:root[data-theme='dark'] h3,
+:root[data-theme='dark'] h4 {
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .standalone-brand-wordmark,
+:root[data-theme='dark'] .brand-wordmark {
+  text-shadow: 0 16px 28px rgba(2, 6, 23, 0.32);
+}
+
+:root[data-theme='dark'] .muted,
+:root[data-theme='dark'] .detail-sub,
+:root[data-theme='dark'] .field-help,
+:root[data-theme='dark'] .list-sub,
+:root[data-theme='dark'] .kv-label,
+:root[data-theme='dark'] .standalone-muted,
+:root[data-theme='dark'] .standalone-footer,
+:root[data-theme='dark'] .backup-inline-note,
+:root[data-theme='dark'] .backup-browser-empty,
+:root[data-theme='dark'] .or,
+:root[data-theme='dark'] .mobile-tab,
+:root[data-theme='dark'] .side-link,
+:root[data-theme='dark'] .user-chip,
+:root[data-theme='dark'] .list-count {
+  color: var(--muted);
+}
+
+:root[data-theme='dark'] .user-chip {
+  background: rgba(17, 34, 56, 0.94);
+  border-color: var(--line);
+  box-shadow: 0 12px 24px rgba(1, 7, 18, 0.24);
+}
+
+:root[data-theme='dark'] .side-link:hover,
+:root[data-theme='dark'] .mobile-tab:hover {
+  background: rgba(132, 182, 255, 0.11);
+}
+
+:root[data-theme='dark'] .side-link.active,
+:root[data-theme='dark'] .mobile-tab.active,
+:root[data-theme='dark'] .sort-menu-item.active,
+:root[data-theme='dark'] .list-item.active {
+  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.08));
+  border-color: rgba(132, 182, 255, 0.28);
+  color: var(--primary);
+}
+
+:root[data-theme='dark'] .input,
+:root[data-theme='dark'] .textarea,
+:root[data-theme='dark'] select.input,
+:root[data-theme='dark'] .dialog input,
+:root[data-theme='dark'] .dialog textarea,
+:root[data-theme='dark'] .dialog select {
+  background: rgba(13, 24, 40, 0.94);
+  border-color: rgba(103, 136, 186, 0.36);
+  color: var(--text);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
+}
+
+:root[data-theme='dark'] .input::placeholder,
+:root[data-theme='dark'] .textarea::placeholder,
+:root[data-theme='dark'] input::placeholder,
+:root[data-theme='dark'] textarea::placeholder {
+  color: #7488a8;
+}
+
+:root[data-theme='dark'] .input:focus,
+:root[data-theme='dark'] .textarea:focus,
+:root[data-theme='dark'] .search-input:focus,
+:root[data-theme='dark'] .dialog input:focus,
+:root[data-theme='dark'] .dialog textarea:focus,
+:root[data-theme='dark'] .dialog select:focus {
+  border-color: rgba(132, 182, 255, 0.54);
+  background-color: rgba(16, 30, 49, 0.98);
+  box-shadow: 0 0 0 4px rgba(132, 182, 255, 0.12), 0 10px 22px rgba(5, 13, 28, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.04);
+}
+
+:root[data-theme='dark'] select.input {
+  background-image:
+    linear-gradient(45deg, transparent 50%, #8fb8ff 50%),
+    linear-gradient(135deg, #8fb8ff 50%, transparent 50%);
+}
+
+:root[data-theme='dark'] .input-readonly {
+  background: #0f1b2d;
+  color: var(--muted-strong);
+}
+
+:root[data-theme='dark'] .input:disabled,
+:root[data-theme='dark'] .btn:disabled {
+  background: #132033;
+  border-color: #22334c;
+  color: #70829d;
+}
+
+:root[data-theme='dark'] .btn-secondary {
+  background: linear-gradient(180deg, rgba(22, 41, 66, 0.98), rgba(16, 31, 52, 0.98));
+  border-color: rgba(132, 182, 255, 0.22);
+  color: #a9cdff;
+  box-shadow: 0 12px 22px rgba(1, 7, 18, 0.18);
+}
+
+:root[data-theme='dark'] .btn-secondary:hover {
+  background: linear-gradient(180deg, rgba(26, 49, 79, 0.98), rgba(19, 37, 61, 0.98));
+  border-color: rgba(132, 182, 255, 0.3);
+}
+
+:root[data-theme='dark'] .btn-danger {
+  background: linear-gradient(180deg, rgba(45, 23, 33, 0.98), rgba(35, 18, 28, 0.98));
+  border-color: rgba(255, 139, 168, 0.38);
+  color: #ff9bb0;
+}
+
+:root[data-theme='dark'] .btn-danger:hover {
+  background: linear-gradient(180deg, rgba(56, 27, 40, 0.98), rgba(41, 19, 31, 0.98));
+  border-color: rgba(255, 171, 192, 0.42);
+}
+
+:root[data-theme='dark'] .btn-primary {
+  background: linear-gradient(135deg, #79acff, #57c2ff 76%);
+  border-color: rgba(176, 214, 255, 0.22);
+  color: #061120;
+  box-shadow: 0 18px 32px rgba(10, 26, 52, 0.34);
+}
+
+:root[data-theme='dark'] .btn-primary:hover {
+  background: linear-gradient(135deg, #90bcff, #6accff 76%);
+  box-shadow: 0 22px 36px rgba(10, 26, 52, 0.38);
+}
+
+:root[data-theme='dark'] .toolbar.actions,
+:root[data-theme='dark'] .list-head,
+:root[data-theme='dark'] .mobile-panel-head,
+:root[data-theme='dark'] .backup-recommendation-header,
+:root[data-theme='dark'] .backup-operations-sidebar,
+:root[data-theme='dark'] .backup-destination-sidebar,
+:root[data-theme='dark'] .backup-detail-panel,
+:root[data-theme='dark'] .detail-actions,
+:root[data-theme='dark'] .topbar,
+:root[data-theme='dark'] .app-side,
+:root[data-theme='dark'] .kv-row,
+:root[data-theme='dark'] .attachment-row,
+:root[data-theme='dark'] .backup-browser-row {
+  border-color: var(--line);
+}
+
+:root[data-theme='dark'] .input,
+:root[data-theme='dark'] .search-input,
+:root[data-theme='dark'] .list-item,
+:root[data-theme='dark'] .sidebar-block {
+  background: rgba(15, 28, 45, 0.94);
+}
+
+:root[data-theme='dark'] .sidebar,
+:root[data-theme='dark'] .content,
+:root[data-theme='dark'] .list-col,
+:root[data-theme='dark'] .detail-col {
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .mobile-sidebar-mask,
+:root[data-theme='dark'] .dialog-mask {
+  background: var(--overlay-strong);
+}
+
+:root[data-theme='dark'] .toast {
+  background: linear-gradient(180deg, rgba(19, 34, 54, 0.98), rgba(14, 26, 42, 0.98));
+  border-color: #263a57;
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .toast.success {
+  background: #0f2a1f;
+  border-color: #1f5b44;
+  color: #9be2bd;
+}
+
+:root[data-theme='dark'] .toast.error {
+  background: #2a1720;
+  border-color: #6c2b41;
+  color: #ffb1c0;
+}
+
+:root[data-theme='dark'] .toast.warning {
+  background: #2d2413;
+  border-color: #7b6230;
+  color: #f7d48b;
+}
+
+:root[data-theme='dark'] .jwt-warning-head,
+:root[data-theme='dark'] .jwt-warning-label,
+:root[data-theme='dark'] .jwt-warning-copy,
+:root[data-theme='dark'] .jwt-warning-list {
+  color: #f4d48a;
+}
+
+:root[data-theme='dark'] .theme-switch-input:focus + .theme-switch-slider {
+  box-shadow: 0 0 0 2px rgba(132, 182, 255, 0.24);
+}
+
+:root[data-theme='dark'] .search-input,
+:root[data-theme='dark'] .list-head .search-input,
+:root[data-theme='dark'] .mobile-settings-card,
+:root[data-theme='dark'] .mobile-settings-link,
+:root[data-theme='dark'] .table tr,
+:root[data-theme='dark'] .settings-subcard,
+:root[data-theme='dark'] .backup-operations-sidebar,
+:root[data-theme='dark'] .backup-destination-sidebar,
+:root[data-theme='dark'] .backup-detail-panel,
+:root[data-theme='dark'] .dialog-card,
+:root[data-theme='dark'] .backup-browser-path,
+:root[data-theme='dark'] .backup-browser-list,
+:root[data-theme='dark'] .create-menu,
+:root[data-theme='dark'] .create-menu-item,
+:root[data-theme='dark'] .sort-menu,
+:root[data-theme='dark'] .sort-menu-item,
+:root[data-theme='dark'] .backup-recommendation-card,
+:root[data-theme='dark'] .backup-recommendation-dav-item,
+:root[data-theme='dark'] .backup-destination-item,
+:root[data-theme='dark'] .totp-code-row,
+:root[data-theme='dark'] .list-item {
+  background:
+    linear-gradient(180deg, rgba(18, 32, 52, 0.92), rgba(14, 26, 42, 0.92));
+  border-color: var(--line);
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .list-item:hover,
+:root[data-theme='dark'] .sort-menu-item:hover,
+:root[data-theme='dark'] .create-menu-item:hover,
+:root[data-theme='dark'] .mobile-settings-link:hover,
+:root[data-theme='dark'] .backup-destination-item:hover {
+  background:
+    linear-gradient(180deg, rgba(24, 44, 70, 0.96), rgba(16, 31, 51, 0.96));
+  border-color: rgba(118, 150, 197, 0.32);
+}
+
+:root[data-theme='dark'] .list-item.active {
+  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.1));
+  border-color: rgba(122, 176, 255, 0.34);
+  box-shadow: inset 0 0 0 1px rgba(200, 225, 255, 0.06), 0 12px 24px rgba(5, 13, 28, 0.18);
+}
+
+:root[data-theme='dark'] .list-item::before {
+  background:
+    linear-gradient(90deg, rgba(132, 182, 255, 0.08), transparent 24%, transparent 76%, rgba(56, 189, 248, 0.08)),
+    radial-gradient(circle at 18px 50%, rgba(255, 255, 255, 0.06), transparent 44%);
+}
+
+:root[data-theme='dark'] .backup-destination-item.active,
+:root[data-theme='dark'] .backup-interval-preset.active,
+:root[data-theme='dark'] .mobile-settings-link.active,
+:root[data-theme='dark'] .tree-btn.active {
+  background: linear-gradient(135deg, rgba(132, 182, 255, 0.2), rgba(56, 189, 248, 0.1));
+  border-color: rgba(132, 182, 255, 0.34);
+  color: #f4f8ff;
+}
+
+:root[data-theme='dark'] .theme-switch-slider {
+  background: linear-gradient(180deg, #1d3659, #142845);
+  border-color: rgba(120, 152, 198, 0.34);
+}
+
+:root[data-theme='dark'] .theme-switch-slider::before {
+  background: linear-gradient(180deg, #f8fbff, #dce9ff);
+  box-shadow: 0 3px 10px rgba(2, 8, 20, 0.28);
+}
+
+:root[data-theme='dark'] .theme-switch .moon svg {
+  fill: #8db6ff;
+}
+
+:root[data-theme='dark'] .theme-switch .sun svg {
+  opacity: 0.82;
+}
+
+:root[data-theme='dark'] .totp-code-name,
+:root[data-theme='dark'] .backup-destination-name,
+:root[data-theme='dark'] .backup-browser-entry,
+:root[data-theme='dark'] .mobile-settings-link,
+:root[data-theme='dark'] .backup-browser-path strong,
+:root[data-theme='dark'] .backup-option-label,
+:root[data-theme='dark'] .sort-menu-item,
+:root[data-theme='dark'] .create-menu-item,
+:root[data-theme='dark'] .tree-btn,
+:root[data-theme='dark'] .folder-add-btn,
+:root[data-theme='dark'] .list-icon-fallback,
+:root[data-theme='dark'] .totp-code-main strong,
+:root[data-theme='dark'] .totp-timer-value {
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .totp-code-username,
+:root[data-theme='dark'] .backup-destination-meta,
+:root[data-theme='dark'] .backup-browser-meta,
+:root[data-theme='dark'] .table td::before,
+:root[data-theme='dark'] .backup-recommendation-step,
+:root[data-theme='dark'] .backup-recommendation-inline-note,
+:root[data-theme='dark'] .backup-recommendation-linked-item,
+:root[data-theme='dark'] .backup-inline-suffix,
+:root[data-theme='dark'] .folder-delete-btn,
+:root[data-theme='dark'] .folder-add-btn:hover,
+:root[data-theme='dark'] .tree-label,
+:root[data-theme='dark'] .list-sub {
+  color: var(--muted);
+}
+
+:root[data-theme='dark'] .import-export-panel p,
+:root[data-theme='dark'] .dialog-message,
+:root[data-theme='dark'] .local-error,
+:root[data-theme='dark'] .status-ok {
+  color: var(--muted);
+}
+
+:root[data-theme='dark'] .backup-destination-type {
+  background: #1d3048;
+  color: #c9d8eb;
+}
+
+:root[data-theme='dark'] .backup-help-trigger {
+  border-color: #38618f;
+  background: #173150;
+  color: #9ec5ff;
+}
+
+:root[data-theme='dark'] .backup-help-trigger:hover,
+:root[data-theme='dark'] .backup-help-trigger:focus-visible {
+  border-color: #5f92d7;
+  background: #20426a;
+}
+
+:root[data-theme='dark'] .backup-help-bubble {
+  background: var(--panel);
+  border-color: var(--line);
+  color: var(--text);
+}
+
+:root[data-theme='dark'] .backup-help-bubble::before {
+  background: var(--panel);
+  border-left-color: var(--line);
+  border-top-color: var(--line);
+}
+
+:root[data-theme='dark'] .table td {
+  border-bottom-color: #203047;
+}
+
+:root[data-theme='dark'] .local-error {
+  color: #ff9bb0;
+}
+
+:root[data-theme='dark'] .status-ok {
+  color: #9be2bd;
+}
+
+:root[data-theme='dark'] .totp-qr {
+  background: #ffffff;
+  border-color: rgba(15, 23, 42, 0.12);
+}
+
+:root[data-theme='dark'] .totp-qr svg,
+:root[data-theme='dark'] .totp-qr img {
+  background: #ffffff;
+  border-radius: 8px;
+}
diff --git a/webapp/src/styles/forms.css b/webapp/src/styles/forms.css
new file mode 100644
index 0000000..1a076c9
--- /dev/null
+++ b/webapp/src/styles/forms.css
@@ -0,0 +1,309 @@
+.muted {
+  margin: 0 0 16px 0;
+  text-align: center;
+  color: var(--muted);
+  line-height: 1.65;
+}
+
+.field {
+  display: block;
+  margin-bottom: 14px;
+}
+
+.field > span {
+  display: block;
+  margin-bottom: 8px;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.input {
+  width: 100%;
+  height: 48px;
+  border: 1px solid rgba(74, 103, 150, 0.42);
+  border-radius: 14px;
+  padding: 10px 14px;
+  font-size: 16px;
+  outline: none;
+  color: var(--text);
+  background: var(--panel);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
+  transition:
+    border-color var(--dur-fast) var(--ease-smooth),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    background-color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft);
+}
+
+select.input {
+  appearance: none;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+  padding-right: 42px;
+  background-image:
+    linear-gradient(45deg, transparent 50%, #365fa8 50%),
+    linear-gradient(135deg, #365fa8 50%, transparent 50%);
+  background-position:
+    calc(100% - 18px) calc(50% - 3px),
+    calc(100% - 12px) calc(50% - 3px);
+  background-size: 6px 6px, 6px 6px;
+  background-repeat: no-repeat;
+}
+
+input[type='file'].input {
+  height: auto;
+  min-height: 48px;
+  padding: 8px 10px;
+  font-size: 14px;
+  line-height: 1.4;
+}
+
+input[type='file'].input::file-selector-button {
+  height: 32px;
+  border: 1px solid #3f5b9e;
+  border-radius: 999px;
+  padding: 0 12px;
+  background: #eef4ff;
+  color: #1f4ea0;
+  font-weight: 700;
+  cursor: pointer;
+  margin-right: 10px;
+}
+
+input[type='file'].input::file-selector-button:hover {
+  background: #dfeaff;
+  border-color: #2f5fd8;
+}
+
+.textarea {
+  min-height: 110px;
+  height: auto;
+  resize: vertical;
+}
+
+.input:focus {
+  border-color: rgba(43, 102, 217, 0.6);
+  background-color: #fbfdff;
+  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.11), 0 10px 20px rgba(37, 99, 235, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
+  transform: translateY(-1px);
+}
+
+.input-readonly {
+  background: #eef2f7;
+  color: #475569;
+}
+
+.input:disabled {
+  background: #e2e8f0;
+  border-color: #cbd5e1;
+  color: #94a3b8;
+  cursor: not-allowed;
+}
+
+.password-wrap {
+  position: relative;
+}
+
+.password-wrap .input {
+  padding-right: 44px;
+}
+
+.password-toggle {
+  position: absolute;
+  right: 8px;
+  top: 50%;
+  transform: translateY(-50%);
+  border: none;
+  background: transparent;
+  color: #275ac2;
+  cursor: pointer;
+  display: grid;
+  place-items: center;
+  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.eye-btn {
+  position: absolute;
+  right: 10px;
+  bottom: 9px;
+  width: 30px;
+  height: 30px;
+  border: none;
+  background: transparent;
+  cursor: pointer;
+  display: grid;
+  place-items: center;
+  color: #334155;
+  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.password-toggle:hover,
+.eye-btn:hover {
+  color: var(--primary);
+  transform: translateY(-1px) scale(1.04);
+}
+
+.btn {
+  height: 36px;
+  border: 1px solid transparent;
+  border-radius: 999px;
+  padding: 0 16px;
+  font-size: 15px;
+  font-weight: 700;
+  cursor: pointer;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  text-decoration: none;
+  transition:
+    transform var(--dur-fast) var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    background-color var(--dur-fast) var(--ease-smooth),
+    border-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.topbar-actions .btn,
+.user-chip,
+.side-link,
+.mobile-tab {
+  --mag-x: 0px;
+  --mag-y: 0px;
+  position: relative;
+  overflow: hidden;
+}
+
+.topbar-actions .btn::before,
+.user-chip::before,
+.side-link::before,
+.mobile-tab::before {
+  content: '';
+  position: absolute;
+  left: var(--mx, 50%);
+  top: var(--my, 50%);
+  width: 110px;
+  height: 110px;
+  border-radius: 999px;
+  background: radial-gradient(circle, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0.08) 42%, transparent 72%);
+  transform: translate(-50%, -50%) scale(0.68);
+  opacity: 0;
+  pointer-events: none;
+  transition:
+    opacity var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-medium) var(--ease-out-soft);
+}
+
+.topbar-actions .btn:hover::before,
+.user-chip:hover::before,
+.side-link:hover::before,
+.mobile-tab:hover::before {
+  opacity: 1;
+  transform: translate(-50%, -50%) scale(1);
+}
+
+.btn:hover:not(:disabled) {
+  transform: translateY(-2px) scale(1.01);
+}
+
+.btn:active:not(:disabled) {
+  transform: translateY(0) scale(0.985);
+}
+
+.btn-icon {
+  flex-shrink: 0;
+}
+
+.btn.full {
+  width: 100%;
+  height: 50px;
+  font-size: 22px;
+  margin: 10px 0;
+}
+
+.btn-primary {
+  background: linear-gradient(135deg, #2563eb, #3b82f6 72%);
+  border-color: rgba(15, 63, 152, 0.32);
+  color: #fff;
+  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.24);
+}
+
+.btn-primary:hover {
+  background: linear-gradient(135deg, #1d4ed8, #3377f0 72%);
+  border-color: rgba(15, 63, 152, 0.38);
+  box-shadow: 0 18px 34px rgba(37, 99, 235, 0.28);
+}
+
+.btn-secondary {
+  background: var(--panel);
+  border-color: rgba(37, 99, 235, 0.22);
+  color: var(--primary-strong);
+  box-shadow: 0 8px 18px rgba(13, 31, 68, 0.05);
+}
+
+.btn-secondary:hover {
+  background: #f4f8ff;
+  border-color: rgba(37, 99, 235, 0.34);
+}
+
+.btn-danger {
+  background: rgba(255, 255, 255, 0.8);
+  border-color: rgba(217, 45, 87, 0.28);
+  color: var(--danger);
+}
+
+.btn-danger:hover {
+  background: rgba(255, 241, 242, 0.96);
+  border-color: rgba(217, 45, 87, 0.38);
+}
+
+.btn:disabled {
+  background: #e2e8f0;
+  border-color: #cbd5e1;
+  color: #94a3b8;
+  cursor: not-allowed;
+}
+
+.or {
+  text-align: center;
+  margin: 10px 0;
+  color: #334155;
+}
+
+.field-help {
+  margin-top: 8px;
+  font-size: 13px;
+  line-height: 1.5;
+  color: #667085;
+}
+
+.auth-support-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  margin: -2px 0 12px;
+}
+
+.auth-link-btn {
+  border: none;
+  background: transparent;
+  padding: 0;
+  color: #1d4ed8;
+  font-size: 13px;
+  font-weight: 700;
+  cursor: pointer;
+  transition: color var(--dur-fast) var(--ease-smooth), transform var(--dur-fast) var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.auth-link-btn:hover {
+  text-decoration: underline;
+  transform: translateX(2px);
+}
+
+.auth-link-btn:disabled {
+  color: #94a3b8;
+  cursor: not-allowed;
+  text-decoration: none;
+}
diff --git a/webapp/src/styles/management.css b/webapp/src/styles/management.css
new file mode 100644
index 0000000..7fb231e
--- /dev/null
+++ b/webapp/src/styles/management.css
@@ -0,0 +1,1001 @@
+.stack {
+  display: grid;
+  gap: 12px;
+}
+
+.import-export-page {
+  display: grid;
+  gap: 12px;
+}
+
+.import-export-panels {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 12px;
+  align-items: start;
+}
+
+.backup-grid {
+  display: grid;
+  grid-template-columns: 280px 280px minmax(0, 1fr);
+  gap: 12px;
+  align-items: start;
+  padding: 2px;
+}
+
+.backup-operations-sidebar,
+.backup-destination-sidebar,
+.backup-detail-panel {
+  min-width: 0;
+  background: #fff;
+  border: 1px solid #d8dee8;
+  border-radius: 12px;
+  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
+  padding: 12px;
+}
+
+.backup-actions-stack {
+  display: grid;
+  gap: 10px;
+}
+
+.backup-option-field {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.backup-option-label {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  margin: 0;
+  font-size: 15px;
+  font-weight: 700;
+  color: #0f172a;
+  cursor: pointer;
+}
+
+.backup-option-label input[type='checkbox'] {
+  width: 22px;
+  height: 22px;
+  margin: 0;
+  flex-shrink: 0;
+}
+
+.backup-help-wrap {
+  position: relative;
+  display: inline-flex;
+  align-items: center;
+}
+
+.backup-help-trigger {
+  width: 22px;
+  height: 22px;
+  border: 1px solid #bfd1f3;
+  border-radius: 999px;
+  padding: 0;
+  background: #eef4ff;
+  color: #1d4ed8;
+  font-size: 13px;
+  font-weight: 800;
+  line-height: 1;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  flex-shrink: 0;
+}
+
+.backup-help-trigger:hover,
+.backup-help-trigger:focus-visible {
+  border-color: #7ea4ef;
+  background: #e1ecff;
+  outline: none;
+}
+
+.backup-help-bubble {
+  position: absolute;
+  left: 50%;
+  top: calc(100% + 10px);
+  z-index: 30;
+  width: min(320px, calc(100vw - 40px));
+  padding: 10px 12px;
+  border: 1px solid #d5dce7;
+  border-radius: 12px;
+  background: #ffffff;
+  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.14);
+  color: #475467;
+  font-size: 13px;
+  line-height: 1.55;
+  transform: translate(-50%, -4px);
+  opacity: 0;
+  visibility: hidden;
+  pointer-events: none;
+  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
+}
+
+.backup-help-bubble::before {
+  content: '';
+  position: absolute;
+  left: 50%;
+  top: -6px;
+  width: 10px;
+  height: 10px;
+  background: #ffffff;
+  border-left: 1px solid #d5dce7;
+  border-top: 1px solid #d5dce7;
+  transform: translateX(-50%) rotate(45deg);
+}
+
+.backup-help-wrap:hover .backup-help-bubble,
+.backup-help-wrap:focus-within .backup-help-bubble,
+.backup-help-wrap.open .backup-help-bubble {
+  opacity: 1;
+  visibility: visible;
+  pointer-events: auto;
+  transform: translate(-50%, 0);
+}
+
+.backup-recommendation-list {
+  display: grid;
+  gap: 8px;
+}
+
+.backup-recommendation-group + .backup-recommendation-group {
+  margin-top: 12px;
+}
+
+.backup-recommendation-group-title {
+  margin: 0 0 8px;
+  font-size: 14px;
+  font-weight: 700;
+  color: #0f172a;
+}
+
+.backup-recommendation-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.backup-recommendation-linked {
+  display: grid;
+  gap: 4px;
+}
+
+.backup-recommendation-linked-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  font-size: 12px;
+  color: #475467;
+}
+
+.backup-recommendation-card {
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  background: #f8fbff;
+  padding: 14px;
+  display: grid;
+  gap: 12px;
+}
+
+.backup-recommendation-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.backup-recommendation-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.backup-recommendation-steps {
+  display: grid;
+  gap: 8px;
+}
+
+.backup-recommendation-step {
+  color: #475467;
+  line-height: 1.5;
+}
+
+.backup-recommendation-inline-note {
+  color: #475467;
+  line-height: 1.5;
+}
+
+.backup-recommendation-dav-list {
+  display: grid;
+  gap: 8px;
+}
+
+.backup-recommendation-dav-item {
+  display: grid;
+  gap: 4px;
+  padding: 10px 12px;
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  background: #fff;
+}
+
+.backup-recommendation-dav-item code {
+  overflow-wrap: anywhere;
+}
+
+.backup-destination-list {
+  display: grid;
+  gap: 8px;
+}
+
+.backup-destination-item {
+  width: 100%;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  background: #fff;
+  padding: 12px;
+  text-align: left;
+  display: grid;
+  gap: 6px;
+  cursor: pointer;
+  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
+}
+
+.backup-destination-item:hover {
+  border-color: #93c5fd;
+  background: #f8fbff;
+}
+
+.backup-destination-item.active {
+  border-color: var(--primary);
+  background: #eff6ff;
+  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.08);
+}
+
+.backup-destination-top {
+  display: flex;
+  justify-content: space-between;
+  gap: 12px;
+  align-items: center;
+}
+
+.backup-destination-name {
+  font-weight: 700;
+  color: #0f172a;
+  overflow-wrap: anywhere;
+}
+
+.backup-destination-type {
+  border-radius: 999px;
+  padding: 2px 8px;
+  background: #e2e8f0;
+  color: #334155;
+  font-size: 12px;
+  white-space: nowrap;
+}
+
+.backup-destination-meta {
+  color: #64748b;
+  font-size: 13px;
+  line-height: 1.4;
+}
+
+.backup-destination-addbar {
+  margin-top: 10px;
+}
+
+.backup-add-chooser {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 10px;
+}
+
+.backup-name-row {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 10px;
+  align-items: end;
+  margin-bottom: 8px;
+}
+
+.backup-name-field {
+  margin: 0;
+  grid-column: 1 / span 3;
+}
+
+.backup-type-field {
+  margin: 0;
+  grid-column: 4;
+}
+
+.backup-detail-schedule-grid {
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+}
+
+.backup-interval-row {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 86px;
+  gap: 10px;
+  align-items: start;
+}
+
+.backup-interval-presets {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 3px;
+}
+
+.backup-interval-preset {
+  height: 22px;
+  border: 1px solid #cdd7e6;
+  border-radius: 999px;
+  background: #f8fafc;
+  color: #475569;
+  font-size: 12px;
+  font-weight: 700;
+  cursor: pointer;
+  transition:
+    border-color var(--dur-fast) var(--ease-smooth),
+    background-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft);
+}
+
+.backup-interval-preset:hover:not(:disabled) {
+  border-color: #2563eb;
+  color: #2563eb;
+  background: #eff6ff;
+}
+
+.backup-interval-preset.active {
+  border-color: #2563eb;
+  background: #2563eb;
+  color: #fff;
+}
+
+.backup-interval-preset:disabled {
+  cursor: not-allowed;
+  opacity: 0.55;
+}
+
+.backup-inline-suffix-wrap {
+  position: relative;
+  width: 100%;
+}
+
+.backup-inline-suffix {
+  position: absolute;
+  right: 12px;
+  top: 50%;
+  transform: translateY(-50%);
+  color: #64748b;
+  font-size: 13px;
+  font-weight: 700;
+  pointer-events: none;
+}
+
+.backup-schedule-attachments-row {
+  margin-bottom: 4px;
+}
+
+.backup-divider {
+  height: 1px;
+  background: var(--line);
+  margin: 14px 0;
+}
+
+.backup-browser-path {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  padding: 10px 12px;
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  background: #f8fafc;
+  margin-bottom: 10px;
+  overflow-wrap: anywhere;
+}
+
+.backup-browser-path strong {
+  color: #0f172a;
+}
+
+.backup-browser-nav {
+  margin-bottom: 10px;
+}
+
+.backup-browser-list {
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  overflow: hidden;
+  background: #fff;
+}
+
+.backup-browser-pagination {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 10px;
+  margin-top: 10px;
+}
+
+.backup-browser-page-indicator {
+  min-width: 48px;
+  text-align: center;
+  color: #64748b;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.backup-browser-row + .backup-browser-row {
+  border-top: 1px solid var(--line);
+}
+
+.backup-browser-row {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto auto;
+  gap: 10px;
+  align-items: center;
+  padding: 10px 12px;
+}
+
+.backup-browser-entry {
+  border: none;
+  background: transparent;
+  text-align: left;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 0;
+  color: #0f172a;
+  cursor: pointer;
+}
+
+.backup-browser-entry.file {
+  cursor: default;
+}
+
+.backup-browser-name {
+  font-weight: 700;
+  overflow-wrap: anywhere;
+}
+
+.backup-browser-meta {
+  display: grid;
+  justify-items: end;
+  gap: 4px;
+  color: #64748b;
+  font-size: 13px;
+  text-align: right;
+}
+
+.backup-browser-actions {
+  justify-content: flex-end;
+}
+
+.backup-browser-empty {
+  border: 1px dashed var(--line);
+  border-radius: 12px;
+  padding: 18px 14px;
+  text-align: center;
+  color: #64748b;
+}
+
+.backup-inline-note {
+  margin: 0 0 12px;
+  color: #64748b;
+  line-height: 1.5;
+}
+
+.import-export-panel h3 {
+  margin: 0 0 6px 0;
+}
+
+.field-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 10px;
+}
+
+.field-span-2 {
+  grid-column: 1 / -1;
+}
+
+.totp-grid {
+  display: grid;
+  grid-template-columns: 220px 1fr;
+  gap: 14px;
+  margin-bottom: 14px;
+}
+
+.totp-qr {
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  background: #fff;
+  display: grid;
+  place-items: center;
+  min-height: 220px;
+  padding: 8px;
+}
+
+.totp-qr svg {
+  width: 180px;
+  height: 180px;
+}
+
+.totp-qr img {
+  width: 180px;
+  height: 180px;
+  background: #fff;
+  border-radius: 8px;
+}
+
+.section-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 10px;
+}
+
+.actions {
+  display: flex;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+
+.muted-inline {
+  color: var(--muted);
+  align-self: center;
+  font-size: 14px;
+}
+
+.create-menu-wrap {
+  position: relative;
+}
+
+.create-menu {
+  position: absolute;
+  left: 0;
+  top: calc(100% + 6px);
+  width: 220px;
+  background: #fff;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
+  overflow: hidden;
+  z-index: 20;
+  transform-origin: bottom left;
+  animation: menu-in 190ms var(--ease-out-strong) both;
+}
+
+.create-menu-item {
+  width: 100%;
+  border: none;
+  background: #fff;
+  text-align: left;
+  padding: 11px 12px;
+  cursor: pointer;
+  font-weight: 600;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  transition:
+    background-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.create-menu-item:hover {
+  background: #f1f5f9;
+  transform: translateX(2px);
+}
+
+.website-row {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) minmax(130px, 160px) auto;
+  gap: 8px;
+  margin-bottom: 8px;
+  align-items: center;
+  padding: 6px;
+  border: 1px solid transparent;
+  border-radius: 18px;
+  background: color-mix(in srgb, var(--panel) 84%, transparent);
+  transition:
+    border-color var(--dur-fast) var(--ease-smooth),
+    background-color var(--dur-fast) var(--ease-smooth),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    transform 220ms var(--ease-out-soft),
+    opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.website-row.is-dragging {
+  opacity: 0.48;
+  border-color: rgba(37, 99, 235, 0.24);
+  background: color-mix(in srgb, var(--panel-soft) 92%, white 8%);
+  box-shadow: var(--shadow-sm);
+}
+
+.website-drag-btn {
+  min-width: 28px;
+  width: 28px;
+  height: 48px;
+  padding: 0;
+  gap: 0;
+  cursor: grab;
+  color: var(--muted);
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+  border-radius: 10px;
+  position: relative;
+  overflow: visible;
+  opacity: 0.82;
+  touch-action: none;
+  -webkit-user-select: none;
+  user-select: none;
+}
+
+.website-drag-btn:hover {
+  color: var(--primary-strong);
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+  opacity: 1;
+}
+
+.website-drag-btn:active {
+  cursor: grabbing;
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+}
+
+.website-drag-btn::before {
+  content: '';
+  position: absolute;
+  inset: -8px;
+  border-radius: 12px;
+}
+
+.website-drag-btn .btn-icon {
+  opacity: 0.9;
+}
+
+.website-match-select {
+  height: 48px;
+  font-size: 13px;
+  line-height: 1.2;
+  padding-top: 10px;
+  padding-bottom: 10px;
+  padding-right: 38px;
+}
+
+.website-match-select option {
+  font-size: 13px;
+}
+
+.website-row .btn {
+  justify-self: start;
+  width: auto;
+}
+
+@media (max-width: 760px) {
+  .website-row {
+    grid-template-columns: auto minmax(0, 1fr) auto;
+    align-items: start;
+  }
+
+  .website-row > :nth-child(1) {
+    grid-column: 1;
+    grid-row: 1;
+    align-self: center;
+  }
+
+  .website-row > :nth-child(2) {
+    grid-column: 2 / span 2;
+    grid-row: 1;
+  }
+
+  .website-row > :nth-child(3) {
+    grid-column: 1 / span 2;
+    grid-row: 2;
+  }
+
+  .website-row > :nth-child(4) {
+    grid-column: 3;
+    grid-row: 2;
+    justify-self: start;
+  }
+}
+
+.cf-check {
+  margin-bottom: 0;
+}
+
+.cf-check.view {
+  margin: 0;
+}
+
+.cf-check input[type='checkbox'] {
+  width: 22px;
+  height: 22px;
+}
+
+.star-on {
+  background: #eef4ff;
+}
+
+.detail-actions {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin: 12px 0;
+}
+
+.detail-delete-btn {
+  margin-left: auto;
+}
+
+.send-options {
+  display: grid;
+  gap: 8px;
+  color: #3a4a64;
+}
+
+.send-options label {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.local-error {
+  margin-top: 10px;
+  color: #b42318;
+  font-weight: 600;
+}
+
+.status-ok {
+  margin: 2px 0 10px 0;
+  color: #0f766e;
+  font-weight: 700;
+}
+
+.restore-progress-card {
+  margin: 8px 0 12px;
+  padding: 14px 16px;
+  border-radius: 12px;
+  border: 1px solid #d7e2f1;
+  background: #ffffff;
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.10);
+}
+
+.restore-progress-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 1250;
+  display: grid;
+  place-items: center;
+  padding: 20px;
+  background: rgba(15, 23, 42, 0.30);
+}
+
+.restore-progress-modal {
+  width: min(520px, 100%);
+  margin: 0;
+}
+
+.restore-progress-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+
+.restore-progress-kicker {
+  font-size: 12px;
+  font-weight: 600;
+  letter-spacing: 0.02em;
+  color: #64748b;
+}
+
+.restore-progress-title {
+  margin: 4px 0 2px;
+  font-size: 20px;
+  line-height: 1.2;
+}
+
+.restore-progress-subtitle {
+  margin: 0;
+  color: #6b7280;
+  font-size: 13px;
+}
+
+.restore-progress-elapsed {
+  flex: 0 0 auto;
+  min-width: 88px;
+  padding: 6px 8px;
+  border-radius: 10px;
+  background: #f8fbff;
+  border: 1px solid #d7e2f1;
+  color: #475569;
+  font-weight: 600;
+  font-size: 13px;
+  text-align: center;
+}
+
+.restore-progress-meter {
+  height: 6px;
+  border-radius: 999px;
+  background: #e7eef8;
+  overflow: hidden;
+}
+
+.restore-progress-meter-bar {
+  display: block;
+  height: 100%;
+  border-radius: inherit;
+  background: #3a71d8;
+  transition: width 280ms ease;
+}
+
+.restore-progress-current {
+  margin-top: 12px;
+  padding: 10px 12px;
+  border-radius: 10px;
+  background: #f8fbff;
+  border: 1px solid #d7e2f1;
+}
+
+.restore-progress-current strong {
+  display: block;
+  color: #0f172a;
+  font-size: 14px;
+}
+
+.restore-progress-current p {
+  margin: 4px 0 0;
+  color: #64748b;
+  line-height: 1.45;
+  font-size: 13px;
+}
+
+.restore-progress-list {
+  list-style: none;
+  margin: 12px 0 0;
+  padding: 0;
+  display: grid;
+  gap: 6px;
+}
+
+.restore-progress-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-height: 30px;
+  color: #64748b;
+  font-weight: 500;
+  font-size: 13px;
+}
+
+.restore-progress-item.active {
+  color: #1d4ed8;
+}
+
+.restore-progress-item.done {
+  color: #475569;
+}
+
+.restore-progress-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 999px;
+  background: #cbd5e1;
+  flex: 0 0 auto;
+}
+
+.restore-progress-item.active .restore-progress-dot {
+  background: #1d4ed8;
+}
+
+.restore-progress-item.done .restore-progress-dot {
+  background: #94a3b8;
+}
+
+.kv-line strong {
+  overflow-wrap: anywhere;
+}
+
+.check-line {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 12px;
+  color: #334155;
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+}
+
+.table th,
+.table td {
+  text-align: left;
+  border-bottom: 1px solid var(--line);
+  padding: 10px 8px;
+  font-size: 14px;
+}
+
+.table td::before {
+  display: none;
+}
+
+.table th {
+  color: #667085;
+}
+
+.input.small {
+  width: 120px;
+}
+
+.invite-toolbar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 10px;
+  flex-wrap: wrap;
+  margin-bottom: 10px;
+}
+
+.invite-create-group {
+  align-items: flex-end;
+}
+
+.invite-hours-field {
+  margin: 0;
+}
+
+.invite-hours-field > span {
+  margin-bottom: 6px;
+  color: #5f6f85;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.trusted-cell {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.device-status-pill {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 58px;
+  height: 26px;
+  padding: 0 10px;
+  border-radius: 999px;
+  font-size: 12px;
+  font-weight: 700;
+  line-height: 1;
+}
+
+.device-status-pill.online {
+  background: #dcfce7;
+  color: #166534;
+}
+
+.device-status-pill.offline {
+  background: #e2e8f0;
+  color: #475569;
+}
diff --git a/webapp/src/styles/motion.css b/webapp/src/styles/motion.css
new file mode 100644
index 0000000..ab6299c
--- /dev/null
+++ b/webapp/src/styles/motion.css
@@ -0,0 +1,127 @@
+@keyframes toast-life {
+  from {
+    transform: scaleX(1);
+    transform-origin: left center;
+  }
+  to {
+    transform: scaleX(0);
+    transform-origin: left center;
+  }
+}
+
+@keyframes fade-in {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+@keyframes fade-in-up {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 16px, 0);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0);
+  }
+}
+
+@keyframes shell-enter {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 18px, 0) scale(0.992);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes surface-enter {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 20px, 0) scale(0.985);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes menu-in {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 10px, 0) scale(0.96);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes dialog-in {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 18px, 0) scale(0.96);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes toast-in {
+  from {
+    opacity: 0;
+    transform: translate3d(18px, 0, 0) scale(0.97);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes stagger-rise {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 18px, 0) scale(0.985);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+}
+
+@keyframes fade-out {
+  from {
+    opacity: 1;
+  }
+  to {
+    opacity: 0;
+  }
+}
+
+@keyframes dialog-out {
+  from {
+    opacity: 1;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+  to {
+    opacity: 0;
+    transform: translate3d(0, 10px, 0) scale(0.972);
+  }
+}
+
+@keyframes route-stage-in {
+  from {
+    opacity: 0;
+    transform: translate3d(0, 14px, 0);
+  }
+  to {
+    opacity: 1;
+    transform: translate3d(0, 0, 0);
+  }
+}
diff --git a/webapp/src/styles/overlays.css b/webapp/src/styles/overlays.css
new file mode 100644
index 0000000..e1f8dbf
--- /dev/null
+++ b/webapp/src/styles/overlays.css
@@ -0,0 +1,299 @@
+.dialog-mask {
+  position: fixed;
+  inset: 0;
+  width: 100vw;
+  height: 100dvh;
+  background: rgba(15, 23, 42, 0.5);
+  display: grid;
+  place-items: center;
+  z-index: 1200;
+  padding: 20px;
+  opacity: 0;
+  animation: fade-in var(--dur-medium) var(--ease-smooth) both;
+  backdrop-filter: blur(6px);
+  -webkit-backdrop-filter: blur(6px);
+}
+
+.dialog-card {
+  width: min(460px, 100%);
+  background: #fff;
+  border-radius: 20px;
+  border: 1px solid var(--line);
+  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2);
+  padding: 20px;
+  text-align: center;
+  transform-origin: 50% 30%;
+  animation: dialog-in 240ms var(--ease-out-strong) both;
+}
+
+.dialog-mask.warning {
+  background:
+    radial-gradient(circle at top, rgba(255, 237, 213, 0.32), transparent 34%),
+    linear-gradient(180deg, rgba(127, 29, 29, 0.36), rgba(15, 23, 42, 0.72));
+  backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px);
+}
+
+.dialog-card.warning {
+  width: min(520px, 100%);
+  border: 1px solid rgba(220, 38, 38, 0.22);
+  background:
+    linear-gradient(180deg, rgba(255, 246, 246, 0.98), rgba(255, 255, 255, 0.99));
+  box-shadow:
+    0 36px 90px rgba(69, 10, 10, 0.28),
+    0 0 0 1px rgba(255, 255, 255, 0.7) inset;
+}
+
+.dialog-warning-head {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 12px;
+  margin-bottom: 8px;
+}
+
+.dialog-warning-badge {
+  width: 48px;
+  height: 48px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 16px;
+  background: linear-gradient(180deg, #fff1f2, #ffe4e6);
+  color: #dc2626;
+  box-shadow:
+    0 12px 30px rgba(220, 38, 38, 0.18),
+    0 0 0 1px rgba(220, 38, 38, 0.08) inset;
+}
+
+.dialog-warning-kicker {
+  font-size: 12px;
+  font-weight: 800;
+  letter-spacing: 0.16em;
+  text-transform: uppercase;
+  color: #b91c1c;
+}
+
+.dialog-mask.closing {
+  animation: fade-out 220ms var(--ease-smooth) both;
+}
+
+.dialog-card.closing {
+  animation: dialog-out 220ms var(--ease-smooth) both;
+}
+
+.dialog-card .field {
+  text-align: left;
+}
+
+.dialog-title {
+  margin: 6px 0;
+  font-size: 30px;
+}
+
+.dialog-message {
+  color: #475467;
+  margin-bottom: 10px;
+}
+
+.dialog-card.warning .dialog-title {
+  color: #7f1d1d;
+  margin-bottom: 10px;
+}
+
+.dialog-message.warning {
+  margin-bottom: 16px;
+  padding: 14px 16px;
+  border-radius: 16px;
+  border: 1px solid rgba(220, 38, 38, 0.16);
+  background: linear-gradient(180deg, rgba(255, 241, 242, 0.94), rgba(255, 247, 237, 0.9));
+  color: #7a2832;
+  line-height: 1.65;
+  box-shadow: 0 10px 28px rgba(248, 113, 113, 0.08) inset;
+}
+
+.dialog-btn {
+  width: 100%;
+  height: 50px;
+  font-size: 20px;
+  margin-top: 8px;
+}
+
+.dialog-extra {
+  margin-top: 8px;
+}
+
+.dialog-divider {
+  height: 1px;
+  background: var(--line);
+  margin: 8px 0 10px;
+}
+
+.import-summary-dialog {
+  max-width: 520px;
+  text-align: left;
+  position: relative;
+  padding-top: 16px;
+}
+
+.import-summary-close {
+  position: absolute;
+  top: 10px;
+  right: 10px;
+  border: none;
+  background: transparent;
+  color: #64748b;
+  font-size: 24px;
+  line-height: 1;
+  cursor: pointer;
+}
+
+.import-summary-close:hover {
+  color: #0f172a;
+}
+
+.import-summary-table-wrap {
+  margin-top: 8px;
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  overflow: hidden;
+}
+
+.import-summary-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 14px;
+}
+
+.import-summary-table th,
+.import-summary-table td {
+  padding: 10px 12px;
+  border-bottom: 1px solid var(--line);
+}
+
+.import-summary-table th {
+  text-align: left;
+  color: #475467;
+  background: #f8fafc;
+}
+
+.import-summary-table td:last-child,
+.import-summary-table th:last-child {
+  text-align: right;
+  width: 96px;
+}
+
+.import-summary-table tbody tr:last-child td {
+  border-bottom: none;
+}
+
+.import-summary-failed-list {
+  margin-top: 10px;
+  padding: 10px 12px;
+  border: 1px solid #fecaca;
+  border-radius: 10px;
+  background: #fef2f2;
+  color: #991b1b;
+  font-size: 13px;
+}
+
+.import-summary-failed-title {
+  font-weight: 700;
+  margin-bottom: 6px;
+}
+
+.import-summary-failed-list ul {
+  margin: 0;
+  padding-left: 18px;
+}
+
+.import-summary-failed-list li + li {
+  margin-top: 4px;
+}
+
+.settings-twofactor-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 12px;
+}
+
+.settings-subcard {
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 12px;
+  background: #fff;
+}
+
+.settings-subcard h3 {
+  margin-top: 0;
+  margin-bottom: 10px;
+}
+
+.toast-stack {
+  position: fixed;
+  top: 16px;
+  right: 16px;
+  z-index: 1400;
+  width: min(420px, calc(100vw - 20px));
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  display: grid;
+  gap: 10px;
+}
+
+.toast-item {
+  position: relative;
+  border-radius: 10px;
+  border: 1px solid #bbdfc6;
+  background: #dff4e5;
+  color: #0f5132;
+  padding: 12px 14px;
+  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
+  overflow: hidden;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  animation: toast-in 240ms var(--ease-out-strong) both;
+}
+
+.toast-item.error {
+  border-color: #f2b8c1;
+  background: #fde7eb;
+  color: #9f1239;
+}
+
+.toast-item.warning {
+  border-color: #f2b8c1;
+  background: #fde7eb;
+  color: #9f1239;
+}
+
+.toast-text {
+  font-weight: 700;
+  padding-right: 10px;
+}
+
+.toast-close {
+  border: none;
+  background: transparent;
+  cursor: pointer;
+  font-size: 20px;
+  color: inherit;
+  transition: transform var(--dur-fast) var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.toast-close:hover {
+  transform: scale(1.08);
+  opacity: 0.84;
+}
+
+.toast-progress {
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  height: 3px;
+  background: rgba(15, 23, 42, 0.2);
+  animation: toast-life 4.5s linear forwards;
+}
diff --git a/webapp/src/styles/reduced-motion.css b/webapp/src/styles/reduced-motion.css
new file mode 100644
index 0000000..dc2ddb6
--- /dev/null
+++ b/webapp/src/styles/reduced-motion.css
@@ -0,0 +1,32 @@
+@media (prefers-reduced-motion: reduce) {
+  html {
+    scroll-behavior: auto;
+  }
+
+  *,
+  *::before,
+  *::after {
+    animation-duration: 1ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 1ms !important;
+    scroll-behavior: auto !important;
+  }
+
+  .btn:hover:not(:disabled),
+  .btn:active:not(:disabled),
+  .side-link:hover,
+  .tree-btn:hover,
+  .list-item:hover,
+  .list-item.active,
+  .search-input:focus,
+  .input:focus,
+  .password-toggle:hover,
+  .eye-btn:hover,
+  .auth-link-btn:hover,
+  .sort-menu-item:hover,
+  .create-menu-item:hover,
+  .toast-close:hover,
+  .mobile-sidebar-close:hover {
+    transform: none !important;
+  }
+}
diff --git a/webapp/src/styles/responsive.css b/webapp/src/styles/responsive.css
new file mode 100644
index 0000000..32119fa
--- /dev/null
+++ b/webapp/src/styles/responsive.css
@@ -0,0 +1,790 @@
+@media (max-width: 1180px) {
+  .app-page {
+    padding: 8px;
+  }
+
+  .app-shell {
+    height: calc(100vh - 16px);
+    border-radius: 12px;
+  }
+
+  .app-main {
+    grid-template-columns: 1fr;
+  }
+
+  .app-side {
+    border-right: none;
+    border-bottom: 1px solid #d9e0ea;
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    align-items: start;
+    align-self: start;
+    height: fit-content;
+    gap: 8px;
+  }
+
+  .app-side > .side-link {
+    min-height: 0;
+  }
+
+  .vault-grid {
+    grid-template-columns: 1fr;
+    height: auto;
+  }
+  .sidebar {
+    max-height: 280px;
+  }
+  .totp-grid,
+  .field-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .totp-copy-btn {
+    justify-self: start;
+  }
+
+  .import-export-panels,
+  .backup-browser-row {
+    grid-template-columns: 1fr;
+  }
+
+  .settings-twofactor-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .standalone-title {
+    font-size: 24px;
+  }
+
+  .standalone-footer {
+    font-size: 12px;
+    line-height: 1.4;
+  }
+}
+
+@media (max-width: 900px) {
+  .auth-page {
+    padding: 14px;
+    align-items: start;
+  }
+
+  .standalone-shell {
+    width: 100%;
+    max-width: 460px;
+    gap: 10px;
+    padding-top: 12px;
+  }
+
+  .standalone-brand-outside {
+    justify-content: flex-start;
+  }
+
+  .standalone-brand-logo {
+    width: 44px;
+    height: 44px;
+  }
+
+  .auth-card {
+    padding: 20px 16px;
+    border-radius: 18px;
+  }
+
+  .btn.full {
+    height: 48px;
+    font-size: 18px;
+  }
+
+  .auth-support-row {
+    align-items: center;
+    flex-direction: row;
+  }
+
+  .app-page {
+    padding: 0;
+    background: transparent;
+  }
+
+  .app-shell {
+    --mobile-topbar-height: 58px;
+    --mobile-tabbar-height: 70px;
+    height: 100dvh;
+    max-width: none;
+    border: none;
+    border-radius: 0;
+    box-shadow: none;
+  }
+
+  .topbar {
+    height: var(--mobile-topbar-height);
+    padding: 0 12px;
+    position: relative;
+    z-index: 20;
+  }
+
+  .brand {
+    min-width: 0;
+    gap: 10px;
+    font-size: 18px;
+  }
+
+  .brand-logo {
+    width: 34px;
+    height: 34px;
+  }
+
+  .mobile-page-title {
+    display: inline;
+  }
+
+  .topbar-actions .user-chip,
+  .topbar-actions > .btn:not(.mobile-sidebar-toggle):not(.mobile-lock-btn),
+  .topbar-actions > .theme-switch-wrap {
+    display: none;
+  }
+
+  .mobile-sidebar-toggle,
+  .mobile-lock-btn {
+    display: inline-flex;
+    width: 36px;
+    min-width: 36px;
+    height: 36px;
+    padding: 0;
+    justify-content: center;
+    font-size: 0;
+    gap: 0;
+  }
+
+  .mobile-sidebar-toggle .btn-icon,
+  .mobile-lock-btn .btn-icon {
+    margin: 0;
+  }
+
+  .mobile-theme-btn {
+    display: inline-flex;
+    align-items: center;
+  }
+
+  .mobile-theme-btn .theme-switch {
+    transform: scale(0.8);
+    transform-origin: center;
+  }
+
+  .app-main {
+    display: flex;
+    flex-direction: column;
+    min-height: 0;
+  }
+
+  .app-side {
+    display: none;
+  }
+
+  .content {
+    flex: 1;
+    min-height: 0;
+    -webkit-overflow-scrolling: touch;
+  }
+
+  .mobile-tabbar {
+    display: grid;
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    align-items: center;
+    gap: 6px;
+    min-height: var(--mobile-tabbar-height);
+    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
+    border-top: 1px solid var(--line);
+    background: rgba(248, 251, 255, 0.92);
+  }
+
+  .mobile-tab {
+    display: grid;
+    justify-items: center;
+    gap: 4px;
+    color: #64748b;
+    text-decoration: none;
+    font-size: 11px;
+    font-weight: 700;
+    padding: 6px 4px;
+    border-radius: 12px;
+    transition:
+      transform 220ms var(--ease-out-soft),
+      background-color var(--dur-fast) var(--ease-smooth),
+      color var(--dur-fast) var(--ease-smooth);
+  }
+
+  .mobile-tab:hover {
+    transform: translate3d(var(--mag-x), calc(var(--mag-y) - 1px), 0);
+  }
+
+  .mobile-tab.active {
+    color: var(--primary-strong);
+    background: linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(59, 130, 246, 0.08));
+    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.08);
+  }
+
+  .vault-grid {
+    gap: 10px;
+    padding: 0;
+  }
+
+  .sidebar {
+    display: none;
+  }
+
+  .mobile-sidebar-sheet {
+    display: block;
+    position: fixed;
+    left: 10px;
+    right: 10px;
+    top: calc(var(--mobile-topbar-height) + 10px);
+    bottom: auto;
+    max-height: calc(100dvh - 145px);
+    z-index: 55;
+    overflow: auto;
+    border: 1px solid #d8dee8;
+    border-radius: 18px;
+    background: #fff;
+    padding: 12px;
+    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
+    opacity: 0;
+    visibility: hidden;
+    pointer-events: none;
+    transform: translate3d(0, 10px, 0) scale(0.98);
+    transition:
+      opacity 220ms var(--ease-smooth),
+      transform 240ms var(--ease-out-soft),
+      visibility 220ms var(--ease-smooth);
+  }
+
+  .mobile-sidebar-sheet.open {
+    opacity: 1;
+    visibility: visible;
+    pointer-events: auto;
+    transform: translate3d(0, 0, 0) scale(1);
+  }
+
+  .mobile-sidebar-head {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 10px;
+    margin-bottom: 10px;
+  }
+
+  .mobile-sidebar-title {
+    font-size: 16px;
+    font-weight: 800;
+    color: #0f172a;
+  }
+
+  .mobile-sidebar-close {
+    width: 34px;
+    height: 34px;
+    border: 1px solid #d7dde6;
+    border-radius: 999px;
+    background: #fff;
+    color: #0f172a;
+    display: inline-grid;
+    place-items: center;
+    cursor: pointer;
+    padding: 0;
+    transition:
+      transform var(--dur-fast) var(--ease-out-soft),
+      background-color var(--dur-fast) var(--ease-smooth),
+      border-color var(--dur-fast) var(--ease-smooth);
+  }
+
+  .mobile-sidebar-close:hover {
+    transform: scale(1.05);
+  }
+
+  .mobile-sidebar-sheet .sidebar-block {
+    margin: 0;
+    padding: 0;
+    border: none;
+    border-radius: 0;
+    background: transparent;
+    box-shadow: none;
+  }
+
+  .mobile-sidebar-sheet .tree-btn {
+    margin-bottom: 2px;
+  }
+
+  .mobile-sidebar-sheet .folder-row {
+    align-items: stretch;
+    gap: 4px;
+  }
+
+  .mobile-sidebar-sheet .folder-row .tree-btn {
+    min-height: 42px;
+  }
+
+  .mobile-sidebar-sheet .sidebar-title,
+  .mobile-sidebar-sheet .sidebar-title-row {
+    padding-bottom: 6px;
+    margin-bottom: 0;
+  }
+
+  .mobile-sidebar-sheet .tree-btn {
+    padding-left: 8px;
+    padding-right: 8px;
+    border-radius: 10px;
+  }
+
+  .mobile-sidebar-sheet .tree-btn.active {
+    background: #eef4ff;
+  }
+
+  .mobile-sidebar-sheet .folder-delete-btn {
+    width: 28px;
+    height: 42px;
+    border-radius: 8px;
+  }
+
+  .list-col {
+    max-width: none;
+  }
+
+  .list-head {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto auto auto;
+    gap: 8px;
+    align-items: center;
+  }
+
+  .list-count {
+    grid-column: auto;
+    width: auto;
+    font-size: 12px;
+    white-space: nowrap;
+  }
+
+  .list-head .search-input-wrap {
+    width: 100%;
+    min-width: 0;
+  }
+
+  .list-head .search-input {
+    width: 100%;
+    min-width: 0;
+    height: 42px;
+    border-radius: 14px;
+  }
+
+  .list-icon-btn {
+    width: auto;
+    min-width: 0;
+    padding: 0 12px;
+    font-size: 13px;
+    gap: 6px;
+    white-space: nowrap;
+  }
+
+  .toolbar.actions {
+    justify-content: flex-end;
+    flex-wrap: unset;
+    gap: var(--actions-gap);
+    overflow: visible;
+    padding-bottom: 2px;
+  }
+
+  .actions {
+    gap: var(--actions-gap);
+  }
+
+  .toolbar.actions .btn.small {
+    width: auto;
+    min-width: 0;
+    height: 34px;
+    padding: 0 12px;
+    font-size: 13px;
+    gap: 6px;
+    border-radius: 999px;
+    white-space: nowrap;
+  }
+
+  .mobile-fab-wrap {
+    position: fixed;
+    right: 14px;
+    bottom: calc(14px + var(--mobile-tabbar-height) + env(safe-area-inset-bottom));
+    z-index: 45;
+  }
+
+  .mobile-fab-trigger {
+    width: 36px;
+    height: 56px;
+    padding: 0;
+    border-radius: 999px;
+    font-size: 0;
+    gap: 0;
+    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.28);
+  }
+
+  .mobile-fab-trigger .btn-icon {
+    margin: 0;
+    width: 20px;
+    height: 20px;
+  }
+
+  .mobile-fab-wrap .create-menu {
+    left: auto;
+    right: 0;
+    top: auto;
+    bottom: calc(100% + 10px);
+  }
+
+  .list-panel {
+    border-radius: 16px;
+    overflow: visible;
+  }
+
+  .list-item {
+    padding: 12px;
+    border-radius: 14px;
+  }
+
+  .row-check {
+    width: 18px;
+    height: 18px;
+  }
+
+  .vault-grid.mobile-panel-detail .sidebar,
+  .vault-grid.mobile-panel-detail .list-col,
+  .vault-grid.mobile-panel-edit .sidebar,
+  .vault-grid.mobile-panel-edit .list-col {
+    display: none;
+  }
+
+  .mobile-detail-sheet {
+    display: block;
+    position: fixed;
+    left: 0;
+    right: 0;
+    top: calc(var(--mobile-topbar-height) + env(safe-area-inset-top));
+    bottom: calc(var(--mobile-tabbar-height) + env(safe-area-inset-bottom));
+    z-index: 35;
+    overflow: auto;
+    background: transparent;
+    padding: 0 0 18px;
+    opacity: 0;
+    visibility: hidden;
+    pointer-events: none;
+    transform: translate3d(0, 18px, 0);
+    transition:
+      opacity 220ms var(--ease-smooth),
+      transform 260ms var(--ease-out-soft),
+      visibility 220ms var(--ease-smooth);
+  }
+
+  .mobile-detail-sheet.open {
+    opacity: 1;
+    visibility: visible;
+    pointer-events: auto;
+    transform: translate3d(0, 0, 0);
+  }
+
+  .mobile-panel-head {
+    display: flex;
+    align-items: center;
+    margin: 0 10px 10px;
+  }
+
+  .mobile-panel-back {
+    min-height: 40px;
+  }
+
+  .mobile-detail-sheet > .detail-switch-stage,
+  .mobile-detail-sheet > .card,
+  .mobile-detail-sheet > .empty {
+    margin-left: 10px;
+    margin-right: 10px;
+  }
+
+  .detail-col .card,
+  .import-export-panel,
+  .settings-subcard {
+    border-radius: 16px;
+  }
+
+  .card {
+    padding: 14px 14px;
+  }
+
+  .section-head {
+    align-items: flex-start;
+    gap: 10px;
+    flex-direction: column;
+  }
+
+  .detail-actions {
+    flex-direction: column;
+    align-items: stretch;
+    gap: 10px;
+  }
+
+  .detail-actions .actions {
+    width: 100%;
+  }
+
+  .detail-actions .actions .btn,
+  .detail-delete-btn {
+    width: 100%;
+  }
+
+  .kv-row {
+    grid-template-columns: minmax(64px, 80px) minmax(0, 1fr) auto;
+    align-items: center;
+  }
+
+  .kv-line {
+    flex-direction: row;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  .kv-actions {
+    width: auto;
+    justify-content: flex-end;
+    flex-wrap: nowrap;
+  }
+
+  .kv-actions .btn.small {
+    width: 34px;
+    min-width: 34px;
+    height: 34px;
+    padding: 0;
+    font-size: 0;
+    gap: 0;
+    border-radius: 999px;
+  }
+
+  .kv-actions .btn.small .btn-icon {
+    margin: 0;
+  }
+
+  .import-export-panels,
+  .settings-twofactor-grid {
+    gap: 10px;
+  }
+
+  .import-export-panel .actions .btn,
+  .settings-subcard .actions .btn,
+  .section-head .actions .btn {
+    width: 100%;
+  }
+
+  .totp-grid {
+    gap: 10px;
+  }
+
+  .totp-qr {
+    min-height: 180px;
+  }
+
+  .totp-qr svg,
+  .totp-qr img {
+    width: 160px;
+    height: 160px;
+  }
+
+  .invite-toolbar {
+    align-items: stretch;
+  }
+
+  .mobile-settings-card {
+    min-height: calc(100dvh - 170px);
+    display: flex;
+    flex-direction: column;
+    gap: 12px;
+  }
+
+  .mobile-settings-subhead {
+    display: flex;
+    align-items: center;
+  }
+
+  .mobile-settings-back {
+    min-height: 38px;
+  }
+
+  .mobile-settings-links {
+    display: grid;
+    gap: 8px;
+    align-content: start;
+  }
+
+  .mobile-settings-link {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    min-height: 46px;
+    padding: 0 12px;
+    border: 1px solid #dbe2ec;
+    border-radius: 14px;
+    background: #f8fafc;
+    color: #0f172a;
+    text-decoration: none;
+    font-weight: 700;
+  }
+
+  .mobile-settings-link.active {
+    background: #e8f0ff;
+    border-color: #b9cff6;
+    color: #175ddc;
+  }
+
+  .mobile-settings-logout {
+    width: 100%;
+    margin-top: auto;
+  }
+
+  .stack,
+  .import-export-page,
+  .totp-codes-page,
+  .detail-col {
+    min-height: auto;
+  }
+
+  .invite-create-group {
+    align-items: stretch;
+    width: 100%;
+  }
+
+  .input.small {
+    width: 100%;
+  }
+
+  .table,
+  .table tbody,
+  .table tr,
+  .table td {
+    display: block;
+    width: 100%;
+  }
+
+  .table thead {
+    display: none;
+  }
+
+  .table tr {
+    border: 1px solid var(--line);
+    border-radius: 14px;
+    background: #fff;
+    padding: 10px 12px;
+    margin-bottom: 10px;
+  }
+
+  .table td {
+    border-bottom: 1px solid #edf1f6;
+    padding: 10px 0;
+  }
+
+  .table td:last-child {
+    border-bottom: none;
+    padding-bottom: 0;
+  }
+
+  .table td::before {
+    display: block;
+    content: attr(data-label);
+    margin-bottom: 4px;
+    color: #64748b;
+    font-size: 12px;
+    font-weight: 700;
+  }
+
+  .dialog-mask {
+    align-items: center;
+    justify-items: center;
+    padding: 16px;
+  }
+
+  .dialog-card {
+    width: 90%;
+    max-width: 460px;
+    max-height: calc(100dvh - 10px);
+    overflow: auto;
+    border-radius: 22px;
+    padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
+  }
+
+  .dialog-card.warning {
+    max-width: 520px;
+  }
+
+  .dialog-warning-strip {
+    margin: -18px -16px 16px;
+  }
+
+  .dialog-title {
+    font-size: 24px;
+  }
+
+  .dialog-btn {
+    height: 46px;
+    font-size: 16px;
+  }
+
+.toast-stack {
+  top: 10px;
+  left: 10px;
+  right: 10px;
+  width: auto;
+}
+}
+
+@media (max-width: 900px) {
+  .backup-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .backup-operations-sidebar,
+  .backup-destination-sidebar {
+    position: static;
+  }
+}
+
+@media (max-width: 640px) {
+  .backup-interval-row {
+    grid-template-columns: 1fr;
+  }
+
+  .backup-browser-row,
+  .field-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .backup-destination-top {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .backup-add-chooser {
+    flex-direction: column;
+  }
+
+  .backup-name-row {
+    grid-template-columns: 1fr;
+  }
+
+  .backup-option-field {
+    align-items: flex-start;
+  }
+
+  .backup-help-bubble {
+    left: 0;
+    transform: translate(0, -4px);
+  }
+
+  .backup-help-bubble::before {
+    left: 16px;
+    transform: rotate(45deg);
+  }
+
+  .backup-help-wrap:hover .backup-help-bubble,
+  .backup-help-wrap:focus-within .backup-help-bubble,
+  .backup-help-wrap.open .backup-help-bubble {
+    transform: translate(0, 0);
+  }
+}
diff --git a/webapp/src/styles/shell.css b/webapp/src/styles/shell.css
new file mode 100644
index 0000000..da3271e
--- /dev/null
+++ b/webapp/src/styles/shell.css
@@ -0,0 +1,321 @@
+.app-page {
+  min-height: 100%;
+  padding: 20px;
+  position: relative;
+  background: transparent;
+}
+
+.app-shell {
+  height: calc(100vh - 40px);
+  max-width: 1600px;
+  margin: 0 auto;
+  position: relative;
+  background: var(--panel-soft);
+  border: 1px solid var(--line);
+  border-radius: 28px;
+  box-shadow: var(--shadow-lg);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  animation: shell-enter 560ms var(--ease-out-strong) both;
+}
+
+.topbar {
+  height: 58px;
+  border-bottom: 1px solid var(--line-soft);
+  color: #0f172a;
+  background: rgba(244, 248, 255, 0.72);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 18px;
+  transition: background-color var(--dur-fast) var(--ease-smooth), border-color var(--dur-fast) var(--ease-smooth);
+}
+
+.brand {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 34px;
+  font-weight: 800;
+  color: var(--text);
+}
+
+.brand-wordmark {
+  display: block;
+  height: auto;
+  width: clamp(210px, 20vw, 290px);
+  max-width: 100%;
+  filter: drop-shadow(0 12px 24px rgba(43, 102, 217, 0.12));
+}
+
+.mobile-page-title {
+  display: none;
+  min-width: 0;
+  max-width: min(58vw, 240px);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-size: 19px;
+  line-height: 1.2;
+  font-weight: 800;
+  color: #0f172a;
+}
+
+.brand-logo {
+  width: 42px;
+  height: 42px;
+  object-fit: contain;
+  filter: drop-shadow(0 10px 22px rgba(43, 102, 217, 0.22));
+  transition: transform var(--dur-medium) var(--ease-out-soft), filter var(--dur-medium) var(--ease-out-soft);
+}
+
+.topbar-actions {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.mobile-tabbar {
+  display: none;
+}
+
+.mobile-sidebar-toggle {
+  display: none;
+}
+
+.mobile-lock-btn {
+  display: none;
+}
+
+.mobile-theme-btn {
+  display: none;
+}
+
+.theme-switch-wrap {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.theme-switch {
+  position: relative;
+  display: inline-block;
+  width: 56px;
+  height: 32px;
+}
+
+.theme-switch-input {
+  opacity: 0;
+  width: 0;
+  height: 0;
+}
+
+.theme-switch-slider {
+  position: absolute;
+  cursor: pointer;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: linear-gradient(180deg, #dceaff, #c8dcff);
+  border: 1px solid #9dbbec;
+  transition:
+    background var(--dur-medium) var(--ease-out-soft),
+    border-color var(--dur-medium) var(--ease-smooth),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    transform var(--dur-fast) var(--ease-out-soft);
+  border-radius: 999px;
+}
+
+.theme-switch-slider::before {
+  position: absolute;
+  content: '';
+  height: 26px;
+  width: 26px;
+  border-radius: 999px;
+  left: 2px;
+  bottom: 2px;
+  z-index: 2;
+  background: linear-gradient(180deg, #ffffff, #edf4ff);
+  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.14);
+  transition:
+    transform var(--dur-medium) var(--ease-out-strong),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    background var(--dur-fast) var(--ease-smooth);
+}
+
+.theme-switch .sun svg {
+  position: absolute;
+  top: 6px;
+  left: 32px;
+  z-index: 1;
+  width: 18px;
+  height: 18px;
+  opacity: 0.95;
+  transition: transform var(--dur-medium) var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.theme-switch .moon svg {
+  fill: #5b86d6;
+  position: absolute;
+  top: 7px;
+  left: 7px;
+  z-index: 1;
+  width: 16px;
+  height: 16px;
+  opacity: 0.88;
+  transition: transform var(--dur-medium) var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.theme-switch-input:checked + .theme-switch-slider {
+  background: linear-gradient(180deg, #173150, #122742);
+  border-color: #35527a;
+}
+
+.theme-switch-input:focus + .theme-switch-slider {
+  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.22);
+}
+
+.theme-switch-input:checked + .theme-switch-slider::before {
+  transform: translateX(24px);
+}
+
+.theme-switch:hover .theme-switch-slider {
+  transform: scale(1.02);
+}
+
+.theme-switch:hover .sun svg,
+.theme-switch:hover .moon svg {
+  transform: scale(1.08);
+}
+
+.topbar-actions .btn {
+  height: 34px;
+  border-radius: 12px;
+  padding: 0 12px;
+  font-size: 13px;
+  font-weight: 600;
+  transform: translate3d(var(--mag-x), var(--mag-y), 0);
+  transition-duration: 220ms;
+}
+
+.topbar-actions .btn:hover:not(:disabled) {
+  transform: translate3d(var(--mag-x), calc(var(--mag-y) - 2px), 0) scale(1.02);
+}
+
+.user-chip {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  height: 34px;
+  border-radius: 999px;
+  padding: 0 12px;
+  border: 1px solid rgba(148, 163, 184, 0.3);
+  background: rgba(249, 251, 255, 0.92);
+  color: var(--muted-strong);
+  font-size: 14px;
+  font-weight: 600;
+  box-shadow: 0 10px 18px rgba(13, 31, 68, 0.05);
+  transform: translate3d(var(--mag-x), var(--mag-y), 0);
+  transition:
+    transform 220ms var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    border-color var(--dur-fast) var(--ease-smooth),
+    background-color var(--dur-fast) var(--ease-smooth);
+}
+
+.user-chip:hover {
+  transform: translate3d(var(--mag-x), calc(var(--mag-y) - 1px), 0);
+  box-shadow: 0 16px 28px rgba(15, 23, 42, 0.08);
+}
+
+.app-main {
+  flex: 1;
+  min-height: 0;
+  display: grid;
+  grid-template-columns: 200px 1fr;
+}
+
+.app-side {
+  border-right: 1px solid var(--line-soft);
+  padding: 16px 12px;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.side-link {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 11px 12px;
+  border-radius: 14px;
+  color: var(--muted-strong);
+  text-decoration: none;
+  border: 1px solid transparent;
+  font-weight: 600;
+  font-size: 14px;
+  transition:
+    background-color var(--dur-fast) var(--ease-smooth),
+    border-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft);
+}
+
+.side-link:hover {
+  background: #ffffff;
+  border-color: rgba(128, 152, 192, 0.18);
+  color: var(--text);
+  transform: translate3d(calc(var(--mag-x) + 3px), var(--mag-y), 0);
+  box-shadow: 0 14px 24px rgba(15, 23, 42, 0.05);
+}
+
+.side-link.active {
+  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(59, 130, 246, 0.08));
+  border-color: rgba(37, 99, 235, 0.28);
+  color: var(--primary-strong);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.64), 0 10px 18px rgba(37, 99, 235, 0.1);
+}
+
+.content {
+  min-height: 0;
+  padding: 14px;
+  overflow: hidden;
+}
+
+.route-stage {
+  height: 100%;
+  min-height: 0;
+  overflow: auto;
+}
+
+@media (min-width: 901px) {
+  .route-stage {
+    animation: route-stage-in 240ms var(--ease-out-soft) both;
+  }
+}
+
+.mobile-sidebar-mask {
+  position: fixed;
+  inset: 0;
+  background: rgba(15, 23, 42, 0.36);
+  z-index: 54;
+  opacity: 0;
+  visibility: hidden;
+  pointer-events: none;
+  transition:
+    opacity 220ms var(--ease-smooth),
+    visibility 220ms var(--ease-smooth);
+}
+
+.mobile-sidebar-mask.open {
+  opacity: 1;
+  visibility: visible;
+  pointer-events: auto;
+}
+
+.mobile-sidebar-head {
+  display: none;
+}
diff --git a/webapp/src/styles/tokens.css b/webapp/src/styles/tokens.css
new file mode 100644
index 0000000..138a646
--- /dev/null
+++ b/webapp/src/styles/tokens.css
@@ -0,0 +1,46 @@
+:root {
+  --bg-accent: #e7edf8;
+  --panel: #f9fbff;
+  --panel-soft: #f2f6fd;
+  --panel-muted: #e8eff9;
+  --line: rgba(128, 152, 192, 0.32);
+  --line-soft: rgba(143, 167, 206, 0.18);
+  --text: #0b1730;
+  --muted: #60708b;
+  --muted-strong: #334765;
+  --primary: #2563eb;
+  --primary-hover: #1d4ed8;
+  --primary-strong: #0f3f98;
+  --danger: #d92d57;
+  --overlay-strong: rgba(15, 23, 42, 0.56);
+  --shadow-sm: 0 10px 22px rgba(13, 31, 68, 0.045);
+  --shadow-md: 0 22px 48px rgba(13, 31, 68, 0.08);
+  --shadow-lg: 0 28px 76px rgba(13, 31, 68, 0.11);
+  --ease-out-strong: cubic-bezier(0.22, 1, 0.36, 1);
+  --ease-out-soft: cubic-bezier(0.24, 0.8, 0.32, 1);
+  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
+  --dur-fast: 180ms;
+  --dur-medium: 240ms;
+  --dur-panel: 280ms;
+  --actions-gap: clamp(0px, calc((100vw - 520px) * 1), 10px);
+}
+
+:root[data-theme='dark'] {
+  --bg-accent: #06111d;
+  --panel: #0d192b;
+  --panel-soft: #112136;
+  --panel-muted: #0a1626;
+  --line: rgba(108, 141, 190, 0.28);
+  --line-soft: rgba(120, 152, 198, 0.16);
+  --text: #edf4ff;
+  --muted: #8fa6c6;
+  --muted-strong: #c3d5ef;
+  --primary: #84b6ff;
+  --primary-hover: #a6ccff;
+  --primary-strong: #f3f8ff;
+  --danger: #ff8ba8;
+  --overlay-strong: rgba(2, 8, 20, 0.84);
+  --shadow-sm: 0 14px 28px rgba(1, 7, 18, 0.24);
+  --shadow-md: 0 24px 52px rgba(1, 7, 18, 0.36);
+  --shadow-lg: 0 34px 88px rgba(1, 7, 18, 0.46);
+}
diff --git a/webapp/src/styles/vault.css b/webapp/src/styles/vault.css
new file mode 100644
index 0000000..88972bc
--- /dev/null
+++ b/webapp/src/styles/vault.css
@@ -0,0 +1,1097 @@
+.vault-grid {
+  display: grid;
+  grid-template-columns: 240px minmax(420px, 46%) minmax(575px, 1fr);
+  gap: 12px;
+  height: 100%;
+  min-height: 0;
+  padding: 2px;
+}
+
+.sidebar,
+.list-panel,
+.card {
+  background: var(--panel);
+  border: 1px solid var(--line);
+  border-radius: 18px;
+  box-shadow: var(--shadow-sm);
+}
+
+.sidebar {
+  padding: 0;
+  overflow: auto;
+  border: none;
+  box-shadow: none;
+  background: transparent;
+}
+
+.sidebar-block {
+  border: 1px solid var(--line);
+  border-radius: 19px;
+  padding: 12px;
+  margin-bottom: 8px;
+  background: var(--panel);
+}
+
+.sidebar-title {
+  font-size: 13px;
+  font-weight: 700;
+  color: #344054;
+  margin-bottom: 8px;
+}
+
+.sidebar-title-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding-bottom: 8px;
+}
+
+.sidebar-title-row .sidebar-title {
+  margin-bottom: 0;
+}
+
+.folder-title-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.folder-add-btn {
+  border: none;
+  background: transparent;
+  color: #334155;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  padding: 0;
+  line-height: 1;
+}
+
+.folder-add-btn:hover {
+  color: #1d4ed8;
+}
+
+.search-input {
+  width: 100%;
+  height: 48px;
+  border: 1px solid rgba(74, 103, 150, 0.42);
+  border-radius: 14px;
+  padding: 10px 14px;
+  font-size: 16px;
+  outline: none;
+  color: var(--text);
+  background: var(--panel);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
+  transition:
+    border-color var(--dur-fast) var(--ease-smooth),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    background-color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.search-input-wrap {
+  position: relative;
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
+.search-input:focus {
+  border-color: rgba(43, 102, 217, 0.6);
+  background-color: #fbfdff;
+  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.11), 0 10px 20px rgba(37, 99, 235, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
+  transform: translateY(-1px);
+}
+
+.search-input-wrap .search-input {
+  padding-right: 42px;
+}
+
+.search-clear-btn {
+  position: absolute;
+  top: 50%;
+  right: 9px;
+  width: 22px;
+  height: 22px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+  border-radius: 999px;
+  background: rgba(148, 163, 184, 0.18);
+  color: var(--muted);
+  cursor: pointer;
+  transform: translateY(-50%);
+  transition: background-color var(--dur-fast) var(--ease-out-soft), color var(--dur-fast) var(--ease-out-soft), transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.search-clear-btn:hover {
+  background: rgba(59, 130, 246, 0.18);
+  color: var(--brand);
+  transform: translateY(-50%) scale(1.04);
+}
+
+.search-clear-btn:focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
+}
+
+.tree-btn {
+  width: 100%;
+  min-width: 0;
+  border: none;
+  background: transparent;
+  text-align: left;
+  border-radius: 8px;
+  padding: 8px 10px;
+  margin-bottom: 4px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  transition:
+    background-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft);
+}
+
+.tree-btn:hover {
+  transform: translateX(2px);
+}
+
+.tree-btn.active {
+  background: rgba(37, 99, 235, 0.09);
+  color: var(--primary-strong);
+  font-weight: 700;
+}
+
+.tree-icon {
+  flex-shrink: 0;
+}
+
+.tree-label {
+  min-width: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.folder-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.folder-row .tree-btn {
+  margin-bottom: 0;
+}
+
+.folder-delete-btn {
+  border: none;
+  background: transparent;
+  color: #64748b;
+  width: 24px;
+  height: 24px;
+  padding: 0;
+  cursor: pointer;
+  flex-shrink: 0;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 6px;
+  transition:
+    color var(--dur-fast) var(--ease-smooth),
+    background-color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.folder-delete-btn:hover {
+  color: #b91c1c;
+  background: #fee2e2;
+  transform: scale(1.06);
+}
+
+.folder-edit-btn:hover {
+  color: #1d4ed8;
+  background: #dbeafe;
+}
+
+.list-col {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+  min-height: 0;
+  max-width: 540px;
+}
+
+.toolbar {
+  margin: 0 0 8px 0;
+}
+
+.toolbar.actions {
+  justify-content: flex-end;
+  gap: var(--actions-gap);
+}
+
+.toolbar .btn.small {
+  height: 30px;
+  border-radius: 999px;
+  font-size: 12px;
+}
+
+.list-head {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 8px;
+}
+
+.list-head .search-input-wrap {
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
+.list-head .search-input {
+  height: 42px;
+}
+
+.list-head .btn {
+  white-space: nowrap;
+}
+
+.list-count {
+  flex: 0 0 auto;
+  color: var(--text-muted);
+  font-size: 12px;
+  white-space: nowrap;
+}
+
+.list-icon-btn {
+  white-space: nowrap;
+}
+
+.sort-menu-wrap {
+  position: relative;
+  flex: 0 0 auto;
+}
+
+.sort-trigger {
+  min-width: 36px;
+  width: 36px;
+  padding: 0;
+  justify-content: center;
+  gap: 0;
+}
+
+.sort-trigger.active {
+  background: #e9f1ff;
+  border-color: #a9c2ee;
+  color: #175ddc;
+}
+
+.sort-menu {
+  position: absolute;
+  top: calc(100% + 6px);
+  right: 0;
+  z-index: 30;
+  min-width: 156px;
+  padding: 6px;
+  border: 1px solid var(--line);
+  border-radius: 16px;
+  background: var(--panel);
+  box-shadow: var(--shadow-md);
+  transform-origin: top right;
+  animation: menu-in 190ms var(--ease-out-strong) both;
+}
+
+.sort-menu-item {
+  width: 100%;
+  border: none;
+  background: transparent;
+  border-radius: 10px;
+  padding: 9px 10px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  color: #0f172a;
+  font-size: 13px;
+  text-align: left;
+  cursor: pointer;
+  transition:
+    background-color var(--dur-fast) var(--ease-smooth),
+    color var(--dur-fast) var(--ease-smooth),
+    transform var(--dur-fast) var(--ease-out-soft);
+}
+
+.sort-menu-item:hover {
+  background: #f2f7ff;
+  transform: translateX(2px);
+}
+
+.sort-menu-item.active {
+  background: rgba(37, 99, 235, 0.1);
+  color: var(--primary-strong);
+  font-weight: 700;
+}
+
+.sort-menu-check-placeholder {
+  width: 14px;
+  height: 14px;
+  flex: 0 0 14px;
+}
+
+.list-panel {
+  overflow: auto;
+  min-height: 0;
+  padding: 8px;
+}
+
+.list-item {
+  width: 100%;
+  background: rgba(249, 251, 255, 0.88);
+  border: 1px solid var(--line);
+  border-radius: 14px;
+  padding: 10px 12px;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 8px;
+  min-height: 66px;
+  box-sizing: border-box;
+  position: relative;
+  cursor: pointer;
+  overflow: hidden;
+  transform-origin: 50% 50%;
+  transition:
+    background-color var(--dur-fast) var(--ease-smooth),
+    border-color var(--dur-fast) var(--ease-smooth),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    transform var(--dur-fast) var(--ease-out-soft);
+  contain: paint;
+}
+
+.list-item::before {
+  content: '';
+  position: absolute;
+  inset: 0;
+  background:
+    linear-gradient(90deg, rgba(43, 102, 217, 0.06), transparent 24%, transparent 76%, rgba(14, 165, 233, 0.05)),
+    radial-gradient(circle at 18px 50%, rgba(255, 255, 255, 0.28), transparent 44%);
+  opacity: 0;
+  transition:
+    opacity var(--dur-fast) var(--ease-smooth),
+    transform 320ms var(--ease-out-soft);
+  transform: translateX(-8px);
+  pointer-events: none;
+}
+
+.stagger-item {
+  opacity: 0;
+  animation: stagger-rise 520ms var(--ease-out-strong) both;
+}
+
+.list-item:hover {
+  background: #fcfdff;
+  border-color: rgba(148, 163, 184, 0.26);
+  box-shadow: 0 16px 28px rgba(15, 23, 42, 0.06);
+  transform: translate3d(0, -2px, 0) scale(1.008);
+}
+
+.list-item:hover::before {
+  opacity: 1;
+  transform: translateX(0);
+}
+
+.list-item.active {
+  background: rgba(37, 99, 235, 0.1);
+  border-color: rgba(43, 102, 217, 0.26);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42), 0 14px 24px rgba(43, 102, 217, 0.08);
+  transform: translate3d(0, -1px, 0) scale(1.004);
+}
+
+.list-item.active::before {
+  opacity: 1;
+  transform: translateX(0);
+}
+
+.row-check {
+  width: 16px;
+  height: 16px;
+  position: relative;
+  z-index: 2;
+  cursor: pointer;
+}
+
+.row-main {
+  flex: 1;
+  min-width: 0;
+  border: none;
+  background: transparent;
+  padding: 0;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  text-align: left;
+  cursor: pointer;
+  position: relative;
+  z-index: 1;
+  transition: transform 220ms var(--ease-out-soft);
+}
+
+.list-item:hover .row-main,
+.list-item.active .row-main {
+  transform: translateX(2px);
+}
+
+.list-icon-wrap {
+  width: 24px;
+  height: 24px;
+  display: grid;
+  place-items: center;
+  flex-shrink: 0;
+  transition: transform 240ms var(--ease-out-soft), filter 240ms var(--ease-out-soft);
+}
+
+.list-icon {
+  width: 24px;
+  height: 24px;
+  border-radius: 6px;
+}
+
+.list-icon-fallback {
+  display: grid;
+  place-items: center;
+  color: #64748b;
+  transition: color var(--dur-fast) var(--ease-smooth), transform 240ms var(--ease-out-soft);
+}
+
+.list-icon-fallback svg {
+  width: 24px;
+  height: 24px;
+}
+
+.list-text {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  transition: transform 220ms var(--ease-out-soft);
+}
+
+.list-title {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  color: var(--primary-strong);
+  font-size: 15px;
+  font-weight: 700;
+  min-width: 0;
+  transition: color var(--dur-fast) var(--ease-smooth), letter-spacing 220ms var(--ease-out-soft);
+}
+
+.list-title-text {
+  min-width: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.list-badge {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 2px 6px;
+  border-radius: 999px;
+  font-size: 11px;
+  font-weight: 700;
+  line-height: 1;
+  color: #475569;
+  background: #e8eef8;
+  flex-shrink: 0;
+}
+
+.list-badge.danger {
+  color: #fff;
+  background: var(--danger);
+}
+
+.list-sub {
+  display: block;
+  color: #5f6f85;
+  margin-top: 2px;
+  font-size: 13px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  transition: color var(--dur-fast) var(--ease-smooth), transform 220ms var(--ease-out-soft), opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.list-item:hover .list-icon-wrap,
+.list-item.active .list-icon-wrap {
+  transform: translateX(1px) scale(1.04);
+}
+
+.list-item:hover .list-icon-fallback,
+.list-item.active .list-icon-fallback {
+  color: var(--primary-strong);
+  transform: scale(1.04);
+}
+
+.list-item:hover .list-text,
+.list-item.active .list-text {
+  transform: translateX(1px);
+}
+
+.list-item:hover .list-title,
+.list-item.active .list-title {
+  letter-spacing: -0.012em;
+}
+
+.list-item:hover .list-sub,
+.list-item.active .list-sub {
+  transform: translateX(1px);
+  opacity: 0.92;
+}
+
+.detail-col {
+  overflow: auto;
+  min-height: 0;
+}
+
+.mobile-panel-head {
+  display: none;
+}
+
+.card {
+  padding: 16px 18px;
+  margin-bottom: 10px;
+}
+
+.detail-col > .card {
+  opacity: 1;
+  animation: none;
+}
+
+.detail-col > .card:nth-of-type(1) { animation-delay: 0ms; }
+.detail-col > .card:nth-of-type(2) { animation-delay: 0ms; }
+.detail-col > .card:nth-of-type(3) { animation-delay: 0ms; }
+.detail-col > .card:nth-of-type(4) { animation-delay: 0ms; }
+.detail-col > .card:nth-of-type(5) { animation-delay: 0ms; }
+
+.detail-switch-stage {
+  animation: none;
+}
+
+.detail-switch-stage > .card {
+  opacity: 1;
+  animation: none;
+}
+
+.card h4 {
+  margin-top: 0;
+  margin-bottom: 12px;
+}
+
+.detail-title {
+  margin: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.detail-sub {
+  color: #667085;
+  margin-top: 8px;
+}
+
+.password-history-link {
+  margin-top: 10px;
+  padding: 0;
+  border: none;
+  background: transparent;
+  color: var(--primary);
+  font: inherit;
+  font-weight: 700;
+  cursor: pointer;
+}
+
+.password-history-link:hover {
+  color: var(--primary-hover);
+  text-decoration: underline;
+}
+
+.kv-line {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 10px;
+  border-bottom: 1px solid rgba(154, 172, 205, 0.22);
+  padding: 10px 0;
+}
+
+.kv-line:last-child {
+  border-bottom: none;
+}
+
+.kv-line > span {
+  color: #64748b;
+}
+
+.kv-row {
+  display: grid;
+  grid-template-columns: minmax(0px, 80px) minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 10px;
+  border-bottom: 1px solid rgba(154, 172, 205, 0.22);
+  padding: 10px 0;
+}
+
+.kv-row:last-child {
+  border-bottom: none;
+}
+
+.password-history-dialog {
+  width: min(560px, calc(100vw - 32px));
+}
+
+.password-history-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+
+.password-history-head .dialog-title {
+  margin: 0;
+}
+
+.password-history-close {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 34px;
+  height: 34px;
+  border: none;
+  border-radius: 999px;
+  background: transparent;
+  color: var(--muted-strong);
+  cursor: pointer;
+}
+
+.password-history-close:hover {
+  background: var(--panel-soft);
+  color: var(--text);
+}
+
+.password-history-list {
+  display: grid;
+  gap: 12px;
+  margin: 10px 0 18px;
+}
+
+.password-history-item {
+  position: relative;
+  border: 1px solid var(--line);
+  border-radius: 14px;
+  background: var(--panel-soft);
+  padding: 16px 54px 14px 16px;
+  box-shadow: var(--shadow-sm);
+}
+
+.password-history-value {
+  color: var(--primary);
+  font-size: 22px;
+  line-height: 1.15;
+  letter-spacing: 0.01em;
+  word-break: break-all;
+}
+
+.password-history-time {
+  margin-top: 8px;
+  color: var(--muted);
+}
+
+.password-history-copy {
+  position: absolute;
+  top: 12px;
+  right: 12px;
+}
+
+.password-history-copy-btn {
+  min-width: 36px;
+  padding: 0;
+  width: 36px;
+  height: 36px;
+}
+
+.kv-label {
+  color: #64748b;
+  min-width: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.kv-main {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  justify-content: flex-start;
+  min-width: 0;
+}
+
+.kv-main > strong {
+  min-width: 0;
+}
+
+.totp-inline {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  min-width: 0;
+}
+
+.totp-timer {
+  width: 30px;
+  height: 30px;
+  position: relative;
+  display: inline-grid;
+  place-items: center;
+  flex-shrink: 0;
+}
+
+.totp-ring {
+  width: 30px;
+  height: 30px;
+  transform: rotate(-90deg);
+}
+
+.totp-ring-track,
+.totp-ring-progress {
+  fill: none;
+  stroke-width: 3;
+}
+
+.totp-ring-track {
+  stroke: #d9e2ef;
+}
+
+.totp-ring-progress {
+  stroke: #2563eb;
+  stroke-linecap: round;
+  transition: stroke-dashoffset 260ms linear, stroke 200ms ease;
+}
+
+.totp-timer-value {
+  position: absolute;
+  inset: 0;
+  display: grid;
+  place-items: center;
+  font-size: 11px;
+  font-weight: 700;
+  color: #0f172a;
+}
+
+.totp-codes-page {
+  display: flex;
+  flex-direction: column;
+  min-height: 100%;
+}
+
+.totp-codes-list {
+  display: grid;
+  gap: 10px;
+  grid-template-columns: repeat(var(--totp-columns, 1), minmax(320px, 1fr));
+  align-items: start;
+  width: 100%;
+}
+
+.totp-code-row {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 10px;
+  padding: 12px;
+  border: 1px solid #e2e8f0;
+  border-radius: 12px;
+  background: #f8fafc;
+  width: 100%;
+  min-width: 0;
+  max-width: none;
+  transition:
+    transform 220ms var(--ease-out-soft),
+    box-shadow var(--dur-fast) var(--ease-out-soft),
+    border-color var(--dur-fast) var(--ease-smooth),
+    background-color var(--dur-fast) var(--ease-smooth),
+    opacity var(--dur-fast) var(--ease-smooth);
+}
+
+.totp-code-row.is-dragging {
+  z-index: 2;
+  border-color: rgba(37, 99, 235, 0.3);
+  background: color-mix(in srgb, var(--panel) 88%, white 12%);
+  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.14);
+}
+
+.totp-code-info {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-width: 0;
+}
+
+.totp-drag-btn {
+  min-width: 24px;
+  width: 24px;
+  height: 34px;
+  padding: 0;
+  gap: 0;
+  color: var(--muted);
+  cursor: grab;
+  align-self: center;
+  touch-action: none;
+  -webkit-user-select: none;
+  user-select: none;
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+  border-radius: 10px;
+  position: relative;
+  overflow: visible;
+  opacity: 0.82;
+}
+
+.totp-drag-btn:hover {
+  color: var(--primary-strong);
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+  opacity: 1;
+}
+
+.totp-drag-btn:active {
+  cursor: grabbing;
+  border-color: transparent;
+  background: transparent;
+  box-shadow: none;
+}
+
+.totp-drag-btn::before {
+  content: '';
+  position: absolute;
+  inset: -10px;
+  border-radius: 12px;
+}
+
+.totp-drag-btn .btn-icon {
+  opacity: 0.9;
+}
+
+.totp-code-main {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  min-width: 0;
+  flex-shrink: 0;
+}
+
+.totp-code-main strong {
+  font-size: 22px;
+  line-height: 1;
+  letter-spacing: 0.04em;
+  white-space: nowrap;
+}
+
+.totp-code-meta {
+  min-width: 0;
+}
+
+.totp-code-name,
+.totp-code-username {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.totp-code-name {
+  font-size: 15px;
+  font-weight: 700;
+  color: #0f172a;
+}
+
+.totp-code-username {
+  margin-top: 2px;
+  font-size: 13px;
+  color: #64748b;
+}
+
+.totp-copy-btn {
+  min-width: 28px;
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  border-radius: 999px;
+  flex-shrink: 0;
+  gap: 0;
+}
+
+.value-ellipsis {
+  display: block;
+  max-width: 100%;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.kv-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+  flex-wrap: wrap;
+  flex-shrink: 0;
+}
+
+.attachment-list {
+  display: grid;
+  gap: 0;
+}
+
+.attachment-head {
+  margin-bottom: 8px;
+}
+
+.attachment-head h4 {
+  margin-bottom: 0;
+}
+
+.attachment-add-btn {
+  min-width: 32px;
+  padding: 0 8px;
+}
+
+.attachment-file-input {
+  display: none;
+}
+
+.attachment-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  border-bottom: 1px solid #ecf0f5;
+  padding: 10px 0;
+}
+
+.attachment-row:last-child {
+  border-bottom: none;
+}
+
+.attachment-main {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-width: 0;
+}
+
+.attachment-text {
+  min-width: 0;
+  display: grid;
+  gap: 2px;
+}
+
+.attachment-text span {
+  color: #64748b;
+  font-size: 12px;
+}
+
+.attachment-row.is-removed {
+  opacity: 0.6;
+}
+
+.attachment-row.is-removed .attachment-text strong {
+  text-decoration: line-through;
+}
+
+.attachment-queue-title {
+  font-size: 12px;
+  color: #64748b;
+  font-weight: 700;
+  padding: 8px 0 2px;
+}
+
+.boolean-text {
+  min-width: 0;
+}
+
+.custom-field-card {
+  display: grid;
+  gap: 8px;
+  padding: 10px 0;
+  border-bottom: 1px solid #ecf0f5;
+}
+
+.custom-field-card:last-child {
+  border-bottom: none;
+  padding-bottom: 0;
+}
+
+.custom-field-label {
+  display: block;
+  color: #64748b;
+  font-size: 12px;
+  font-weight: 700;
+  line-height: 1.2;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.custom-field-body {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 10px;
+  align-items: center;
+}
+
+.custom-field-value {
+  min-width: 0;
+}
+
+.custom-field-value > .input {
+  width: 100%;
+}
+
+.custom-field-check {
+  margin-bottom: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.custom-field-check span {
+  color: #334155;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.custom-field-remove {
+  white-space: nowrap;
+}
+
+.notes {
+  white-space: pre-wrap;
+  overflow-wrap: anywhere;
+  word-break: break-word;
+  color: #334155;
+  min-height: 48px;
+}
+
+.empty {
+  color: #667085;
+  display: grid;
+  place-items: center;
+  min-height: 120px;
+}