@layer legacy {
:root {
  --motion-instant: 80ms;
  --motion-fast: 140ms;
  --motion-normal: 220ms;
  --motion-slow: 300ms;
  --motion-emphasis: 380ms;
  --motion-standard: cubic-bezier(.2, 0, 0, 1);
  --motion-premium: cubic-bezier(.22, 1, .36, 1);
  --motion-exit: cubic-bezier(.4, 0, 1, 1);
  --motion-panel: cubic-bezier(.18, .88, .24, 1);
}

/* Stable shell, moving workspace. */
.app-shell,
.sidebar,
.mobile-shell-header,
.aios-chat-topbar,
.composer-wrap {
  view-transition-name: none;
}

.content {
  view-transition-name: aios-workspace;
  animation: none !important;
}

.nav-item.active {
  view-transition-name: aios-active-navigation;
}

.aios-chat-main {
  view-transition-name: aios-chat-stage;
}

.claude-composer {
  view-transition-name: aios-composer;
}

::view-transition-group(aios-workspace),
::view-transition-group(aios-chat-stage),
::view-transition-group(aios-composer),
::view-transition-group(aios-active-navigation) {
  animation-duration: var(--motion-normal);
  animation-timing-function: var(--motion-premium);
}

::view-transition-old(aios-workspace) {
  animation: motion-workspace-out var(--motion-fast) var(--motion-exit) both;
}

::view-transition-new(aios-workspace) {
  animation: motion-workspace-in var(--motion-normal) var(--motion-premium) both;
}

html[data-nav-direction="back"]::view-transition-new(aios-workspace) {
  animation-name: motion-workspace-back-in;
}

html[data-nav-direction="back"]::view-transition-old(aios-workspace) {
  animation-name: motion-workspace-back-out;
}

html[data-motion-kind="conversation"]::view-transition-old(aios-chat-stage) {
  animation: motion-conversation-out var(--motion-fast) var(--motion-exit) both;
}

html[data-motion-kind="conversation"]::view-transition-new(aios-chat-stage),
html[data-motion-kind="new-chat"]::view-transition-new(aios-chat-stage) {
  animation: motion-conversation-in var(--motion-normal) var(--motion-premium) both;
}

@keyframes motion-workspace-out {
  to { opacity: 0; transform: translate3d(0, -6px, 0) scale(.998); }
}

@keyframes motion-workspace-in {
  from { opacity: 0; transform: translate3d(0, 10px, 0) scale(.995); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes motion-workspace-back-out {
  to { opacity: 0; transform: translate3d(12px, 0, 0) scale(.998); }
}

@keyframes motion-workspace-back-in {
  from { opacity: 0; transform: translate3d(-20px, 0, 0) scale(.996); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes motion-conversation-out {
  to { opacity: 0; transform: translate3d(0, -8px, 0); }
}

@keyframes motion-conversation-in {
  from { opacity: 0; transform: translate3d(0, 12px, 0) scale(.997); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

/* One active surface that appears to travel through navigation. */
.nav-item {
  position: relative;
  isolation: isolate;
  transition: color var(--motion-fast) var(--motion-standard), transform var(--motion-fast) var(--motion-premium) !important;
}

.nav-item::before {
  content: "";
  position: absolute;
  inset: 3px 4px;
  z-index: var(--z-behind);
  border-radius: 10px;
  background: transparent;
  transition: background var(--motion-normal) var(--motion-premium), box-shadow var(--motion-normal) var(--motion-premium);
}

.nav-item.active::before {
  background: var(--surface-active, rgba(36, 88, 246, .12));
  box-shadow: inset 0 0 0 1px var(--aios-accent-soft, rgba(36, 88, 246, .1));
}

.nav-item:active,
.mobile-menu-item:active,
.suggestion-card:active {
  transform: scale(.975) !important;
  transition-duration: var(--motion-instant) !important;
}

/* Sidebar transforms without rebuilding the chat DOM. */
.aios-chat-app {
  --chat-sidebar-width: 300px;
  transition: grid-template-columns var(--motion-slow) var(--motion-panel) !important;
}

.aios-chat-sidebar {
  will-change: transform, opacity;
  transition: transform var(--motion-slow) var(--motion-panel), opacity var(--motion-fast) var(--motion-standard), visibility 0s linear 0s !important;
}

.aios-chat-app.sidebar-collapsed .aios-chat-sidebar {
  transition: transform var(--motion-slow) var(--motion-panel), opacity var(--motion-fast) var(--motion-exit), visibility 0s linear var(--motion-slow) !important;
}

.aios-chat-sidebar .chat-sidebar-head,
.aios-chat-sidebar .chat-new-row,
.aios-chat-sidebar .chat-search,
.aios-chat-sidebar .conversation-groups {
  transition: opacity var(--motion-fast) var(--motion-standard), transform var(--motion-normal) var(--motion-premium) !important;
}

.aios-chat-app.sidebar-collapsed .aios-chat-sidebar .chat-sidebar-head,
.aios-chat-app.sidebar-collapsed .aios-chat-sidebar .chat-new-row,
.aios-chat-app.sidebar-collapsed .aios-chat-sidebar .chat-search,
.aios-chat-app.sidebar-collapsed .aios-chat-sidebar .conversation-groups {
  opacity: 0;
  transform: translate3d(-8px, 0, 0);
}

.conversation-item {
  position: relative;
  isolation: isolate;
  transition: color var(--motion-fast) var(--motion-standard), transform var(--motion-fast) var(--motion-premium) !important;
}

.conversation-item.active {
  view-transition-name: aios-active-conversation;
}

.conversation-item:active { transform: scale(.985); }

/* Composer morphs as a single object. */
.claude-composer {
  contain: layout paint;
  transform-origin: center bottom;
  transition:
    min-height var(--motion-normal) var(--motion-premium),
    max-height var(--motion-normal) var(--motion-premium),
    border-color var(--motion-fast) var(--motion-standard),
    background-color var(--motion-normal) var(--motion-standard),
    box-shadow var(--motion-normal) var(--motion-premium),
    transform var(--motion-fast) var(--motion-premium) !important;
}

.claude-composer.is-focused {
  transform: translate3d(0, -1px, 0);
  border-color: color-mix(in srgb, var(--aios-accent, var(--primary)) 30%, transparent) !important;
  box-shadow: 0 12px 36px rgba(15, 23, 42, .12), inset 0 0 0 1px color-mix(in srgb, var(--aios-accent, var(--primary)) 12%, transparent) !important;
}

.claude-composer textarea {
  transition: height var(--motion-normal) var(--motion-premium), color var(--motion-fast) linear !important;
}

.attachment-tray:not(.empty) {
  animation: motion-attachment-in var(--motion-normal) var(--motion-premium) both;
}

.attachment-chip {
  transition: transform var(--motion-fast) var(--motion-premium), background-color var(--motion-fast) linear !important;
}

@keyframes motion-attachment-in {
  from { opacity: 0; transform: translate3d(0, 8px, 0) scale(.98); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

#aios-send,
[data-action="stop-aios-generation"] {
  transition: transform var(--motion-fast) var(--motion-premium), opacity var(--motion-fast) linear, background-color var(--motion-fast) linear !important;
}

#aios-send:not(:disabled):active,
[data-action="stop-aios-generation"]:active {
  transform: scale(.9) rotate(2deg) !important;
}

.composer-tools-popover {
  display: block !important;
  transform-origin: bottom left;
  opacity: 0;
  transform: translate3d(0, 8px, 0) scale(.94);
  pointer-events: none;
  visibility: hidden;
  transition: opacity var(--motion-fast) var(--motion-exit), transform var(--motion-fast) var(--motion-exit), visibility 0s linear var(--motion-fast) !important;
}

.composer-tools-popover[hidden] {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.composer-tools-popover.is-open {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  pointer-events: auto;
  visibility: visible;
  transition: opacity 180ms var(--motion-premium), transform 180ms var(--motion-premium), visibility 0s linear 0s !important;
}

.aios-site-links {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  max-width: 100%;
  margin: 2px 0;
  vertical-align: middle;
}

.aios-site-link {
  display: inline-flex !important;
  align-items: center;
  min-height: 28px;
  padding: 3px 9px;
  border: 1px solid var(--aios-border, rgba(148, 163, 184, .28));
  border-radius: 999px;
  color: var(--aios-text, currentColor) !important;
  background: var(--aios-surface-subtle, rgba(148, 163, 184, .1));
  font-size: .84em;
  font-weight: 650;
  line-height: 1.15;
  text-decoration: none !important;
  white-space: nowrap;
  overflow-wrap: normal !important;
  transition: background-color var(--motion-fast) linear, border-color var(--motion-fast) linear, transform var(--motion-fast) var(--motion-premium) !important;
}

.aios-site-link:hover {
  border-color: color-mix(in srgb, var(--aios-accent, #2458f6) 38%, transparent);
  background: color-mix(in srgb, var(--aios-accent, #2458f6) 10%, var(--aios-surface, #fff));
}

.aios-site-link::after { margin-left: 5px !important; }

/* Messages animate only when newly mounted; streamed tokens stay stable. */
.chat-message {
  animation: motion-message-in var(--motion-normal) var(--motion-premium) both !important;
}

.chat-message.ai { animation-name: motion-ai-message-in !important; }
.chat-message.streaming .message-text { animation: none !important; }

@keyframes motion-message-in {
  from { opacity: 0; transform: translate3d(0, 10px, 0) scale(.985); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes motion-ai-message-in {
  from { opacity: 0; transform: translate3d(0, 8px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

.welcome-prompts .suggestion-card {
  animation: motion-suggestion-in var(--motion-normal) var(--motion-premium) both;
}
.welcome-prompts .suggestion-card:nth-child(2) { animation-delay: 45ms; }
.welcome-prompts .suggestion-card:nth-child(3) { animation-delay: 90ms; }
.welcome-prompts .suggestion-card:nth-child(4) { animation-delay: 135ms; }
.welcome-prompts .suggestion-card:nth-child(n+5) { animation-delay: 180ms; }

@keyframes motion-suggestion-in {
  from { opacity: 0; transform: translate3d(0, 10px, 0) scale(.98); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

/* Origin-aware overlays and mobile sheets. */
.modal-backdrop {
  animation: motion-backdrop-in var(--motion-normal) linear both !important;
}

.modal {
  transform-origin: center center;
  animation: motion-modal-in var(--motion-normal) var(--motion-premium) both !important;
}

@keyframes motion-backdrop-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes motion-modal-in {
  from { opacity: 0; transform: translate3d(0, 16px, 0) scale(.96); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@media (max-width: 820px) {
  .aios-chat-app { transition: none !important; }

  .app-shell.chat-shell .aios-chat-sidebar .chat-sidebar-head {
    justify-content: flex-end !important;
  }

  .app-shell.chat-shell .aios-chat-sidebar .chat-sidebar-head .brand-lockup {
    display: none !important;
  }

  .app-shell.chat-shell .aios-chat-topbar {
    position: relative !important;
    min-height: 72px !important;
    display: grid !important;
    grid-template-columns: 48px minmax(0, 1fr) 48px !important;
    align-items: center !important;
    gap: 10px !important;
    padding: max(8px, env(safe-area-inset-top)) 18px 8px !important;
    border: 0 !important;
    background: color-mix(in srgb, var(--aios-surface, #fff) 82%, transparent) !important;
    -webkit-backdrop-filter: blur(22px) saturate(1.15) !important;
    backdrop-filter: blur(22px) saturate(1.15) !important;
  }

  .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-app-menu {
    grid-column: 1 !important;
    grid-row: 1 !important;
    display: grid !important;
  }

  .app-shell.chat-shell .aios-chat-topbar > .chat-sidebar-toggle,
  .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-exit,
  .app-shell.chat-shell .aios-chat-topbar > .chat-selectors {
    display: none !important;
  }

  .app-shell.chat-shell .chat-mobile-title {
    grid-column: 2 !important;
    grid-row: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 0 !important;
    min-height: 44px !important;
    padding: 0 14px !important;
    border: 0 !important;
    border-radius: 999px !important;
    background: transparent !important;
    color: var(--aios-text, #111827) !important;
  }

  body[data-theme="dark"] .app-shell.chat-shell .chat-mobile-title {
    color: #f8fafc !important;
  }

  .app-shell.chat-shell .chat-mobile-title:active {
    background: var(--aios-surface-subtle, #f1f3f6) !important;
  }

  .app-shell.chat-shell .chat-mobile-title strong {
    font-size: 17px !important;
    letter-spacing: 0 !important;
  }

  .app-shell.chat-shell .chat-mobile-title strong::after {
    content: "⌄";
    margin-left: 7px;
    color: var(--aios-text-muted, #667085);
    font-size: 14px;
  }

  .app-shell.chat-shell .chat-mobile-new {
    grid-column: 3 !important;
    grid-row: 1 !important;
    display: grid !important;
  }

  .app-shell.chat-shell .aios-chat-messages {
    padding: 12px 16px 196px !important;
    scrollbar-width: none;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
  }

  .app-shell.chat-shell .content,
  .app-shell.chat-shell .aios-chat-messages {
    scrollbar-width: none !important;
  }

  .app-shell.chat-shell .content::-webkit-scrollbar,
  .app-shell.chat-shell .aios-chat-messages::-webkit-scrollbar {
    display: none !important;
  }

  .app-shell.chat-shell .welcome-screen {
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    align-items: stretch !important;
    min-height: 100% !important;
    padding: clamp(88px, 13vh, 112px) 4px 18px !important;
  }

  .app-shell.chat-shell .welcome-screen .ai-orb {
    display: none !important;
  }

  .app-shell.chat-shell .welcome-screen h1 {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    color: var(--aios-text, #111827) !important;
    font-size: clamp(25px, 7.6vw, 32px) !important;
    font-weight: 760 !important;
    line-height: 1.06 !important;
    letter-spacing: -0.025em !important;
    text-align: left !important;
  }

  .app-shell.chat-shell .welcome-screen p {
    display: block !important;
    width: min(100%, 310px) !important;
    max-width: 100% !important;
    margin: 12px 0 0 !important;
    color: var(--aios-text-muted, #667085) !important;
    font-size: 15px !important;
    line-height: 1.45 !important;
    text-align: left !important;
  }

  .app-shell.chat-shell .welcome-prompts {
    width: 100% !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-auto-rows: auto !important;
    gap: 8px !important;
    margin: 32px 0 18px !important;
    padding-top: 0 !important;
    transform: none !important;
  }

  .app-shell.chat-shell .welcome-prompts .suggestion-card:nth-child(n+4) {
    display: none !important;
  }

  .app-shell.chat-shell .suggestion-card {
    min-height: 48px !important;
    width: 100% !important;
    padding: 11px 14px !important;
    border: 1px solid var(--aios-border, rgba(15, 23, 42, .1)) !important;
    border-radius: 14px !important;
    background: var(--aios-surface, #fff) !important;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .05) !important;
    color: var(--aios-text, #111827) !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    text-align: left !important;
  }

  .app-shell.chat-shell .suggestion-card:hover,
  .app-shell.chat-shell .suggestion-card:active {
    background: var(--aios-surface-subtle, rgba(148, 163, 184, .1)) !important;
  }

  .app-shell.chat-shell .composer-wrap {
    padding: 0 12px max(10px, env(safe-area-inset-bottom)) !important;
    background: linear-gradient(to top, var(--aios-page, #fff) 68%, transparent) !important;
  }

  .app-shell.chat-shell .claude-composer {
    grid-template-columns: 44px minmax(0, 1fr) 44px 48px !important;
    grid-template-rows: auto minmax(44px, auto) 48px !important;
    align-items: center !important;
    gap: 4px 8px !important;
    width: 100% !important;
    min-height: 116px !important;
    max-height: 220px !important;
    padding: 10px !important;
    border-radius: 26px !important;
  }

  .app-shell.chat-shell .claude-composer .attachment-tray {
    grid-column: 1 / -1 !important;
    grid-row: 1 !important;
  }

  .app-shell.chat-shell .claude-composer textarea {
    grid-column: 1 / -1 !important;
    grid-row: 2 !important;
    width: 100% !important;
    min-height: 44px !important;
    max-height: 108px !important;
    padding: 8px 4px !important;
    font-size: 17px !important;
    line-height: 1.35 !important;
  }

  .app-shell.chat-shell .claude-composer .composer-tools {
    grid-column: 1 !important;
    grid-row: 3 !important;
    position: relative !important;
  }

  .app-shell.chat-shell .claude-composer {
    overflow: visible !important;
  }

  .app-shell.chat-shell .composer-tools-popover {
    position: absolute !important;
    left: 0 !important;
    right: auto !important;
    bottom: calc(100% + 12px) !important;
    width: min(320px, calc(100vw - 40px)) !important;
    max-width: calc(100vw - 40px) !important;
    height: 60px !important;
    min-height: 60px !important;
    max-height: 60px !important;
    overflow: hidden !important;
    padding: 4px !important;
    border-radius: 16px !important;
    z-index: var(--z-modal) !important;
    overscroll-behavior: contain;
  }

  .app-shell.chat-shell .composer-tools-popover .tool-menu-action {
    width: 100% !important;
    height: 50px !important;
    min-height: 50px !important;
    padding: 5px 8px !important;
    margin: 0 !important;
    border-radius: 12px !important;
  }

  .app-shell.chat-shell .claude-composer #aios-mic-button {
    grid-column: 3 !important;
    grid-row: 3 !important;
  }

  .app-shell.chat-shell .claude-composer #aios-send,
  .app-shell.chat-shell .claude-composer .secondary[data-action="stop-aios-generation"] {
    grid-column: 4 !important;
    grid-row: 3 !important;
    width: 44px !important;
    min-width: 44px !important;
    height: 44px !important;
    min-height: 44px !important;
    padding: 0 !important;
    font-size: 0 !important;
  }

  .app-shell.chat-shell .claude-composer #aios-send .icon-symbol,
  .app-shell.chat-shell .claude-composer #aios-send svg {
    width: 20px !important;
    height: 20px !important;
    font-size: 20px !important;
  }

  .aios-chat-sidebar {
    transition: transform 320ms var(--motion-panel), opacity 180ms var(--motion-standard), visibility 0s linear 0s !important;
  }

  .aios-chat-app.sidebar-collapsed .aios-chat-sidebar {
    transition: transform 320ms var(--motion-panel), opacity 160ms var(--motion-exit), visibility 0s linear 320ms !important;
  }

  .chat-sidebar-backdrop {
    transition: opacity var(--motion-normal) linear, visibility 0s linear 0s !important;
  }

  .aios-chat-app.sidebar-collapsed .chat-sidebar-backdrop {
    transition: opacity var(--motion-fast) linear, visibility 0s linear var(--motion-fast) !important;
  }

  .modal:has(.mobile-menu-sheet) {
    transform-origin: left center;
    animation: motion-drawer-in 320ms var(--motion-panel) both !important;
  }

  @keyframes motion-drawer-in {
    from { opacity: .75; transform: translate3d(-100%, 0, 0) scale(.99); }
    to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
  }

  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}

/* Softer AIOS response surface without turning the conversation into stacked cards. */
body[data-theme] .app-shell.chat-shell .aios-chat-main .chat-message.ai .message-body {
  padding: 16px 18px !important;
  border: 1px solid color-mix(in srgb, var(--cg-line) 78%, transparent) !important;
  border-radius: 20px !important;
  background: color-mix(in srgb, var(--cg-elevated) 76%, transparent) !important;
  box-shadow: 0 8px 28px rgba(15, 23, 42, .055) !important;
  -webkit-backdrop-filter: blur(18px) saturate(125%) !important;
  backdrop-filter: blur(18px) saturate(125%) !important;
}

body[data-theme="dark"] .app-shell.chat-shell .aios-chat-main .chat-message.ai .message-body {
  box-shadow: 0 10px 32px rgba(0, 0, 0, .18) !important;
}

@media (max-width: 820px) {
  body[data-theme] .app-shell.chat-shell .aios-chat-main .chat-message.ai .message-body {
    padding: 14px !important;
    border-radius: 18px !important;
  }

  .app-shell.chat-shell .chat-message.ai .message-tools {
    gap: 4px 6px !important;
  }

  .app-shell.chat-shell .claude-composer .composer-tools {
    position: static !important;
  }

  .app-shell.chat-shell .claude-composer {
    contain: none !important;
  }

  .app-shell.chat-shell .composer-tools-popover {
    left: 12px !important;
    right: 12px !important;
    bottom: calc(100% + 10px) !important;
    width: auto !important;
    max-width: none !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: min(54dvh, 180px) !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    gap: 8px !important;
    padding: 5px !important;
    z-index: calc(var(--z-modal) + 3) !important;
  }

  .app-shell.chat-shell .composer-tools-popover .tool-menu-action {
    height: 54px !important;
    min-height: 54px !important;
  }

  .app-shell.chat-shell .composer-tools-popover.is-open {
    display: grid !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: none !important;
  }
}

/* Mobile composer regression guard: size against the viewport, not a narrowed chat grid. */
@media (max-width: 720px) {
  .app-shell.chat-shell .composer-wrap,
  .app-shell.chat-shell .aios-chat-app.chat-fullscreen .composer-wrap,
  body:has(#aios-chat-input:focus) .app-shell.chat-shell .composer-wrap,
  body:has(#aios-chat-input:focus) .app-shell.chat-shell .aios-chat-app.chat-fullscreen .composer-wrap {
    position: fixed !important;
    left: max(12px, env(safe-area-inset-left)) !important;
    right: max(12px, env(safe-area-inset-right)) !important;
    bottom: max(10px, env(safe-area-inset-bottom)) !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    transform: none !important;
  }

  .app-shell.chat-shell .claude-composer {
    width: 100% !important;
    min-width: 0 !important;
    max-width: none !important;
  }
}

/* Desktop chat cleanup: the persistent shell already owns navigation. */
@media (min-width: 821px) {
  #app .app-shell > .sidebar .nav {
    gap: 6px !important;
    padding: 8px 0 !important;
  }

  #app .app-shell > .sidebar .nav .nav-item {
    min-height: 54px !important;
    padding: 9px 12px !important;
    grid-template-columns: 32px minmax(0, 1fr) !important;
    gap: 12px !important;
    border: 1px solid transparent !important;
    border-radius: 12px !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  #app .app-shell > .sidebar .nav .nav-item::before {
    display: none !important;
  }

  #app .app-shell > .sidebar .nav .nav-item:hover {
    color: var(--cg-text) !important;
    border-color: color-mix(in srgb, var(--cg-line) 70%, transparent) !important;
    background: color-mix(in srgb, var(--cg-elevated) 68%, transparent) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 5px 16px rgba(15, 23, 42, .055) !important;
  }

  #app .app-shell > .sidebar .nav .nav-item.active {
    color: var(--aios-accent) !important;
    border-color: color-mix(in srgb, var(--aios-accent) 20%, transparent) !important;
    background: color-mix(in srgb, var(--aios-accent) 12%, var(--cg-elevated)) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .26), 0 6px 18px color-mix(in srgb, var(--aios-accent) 8%, transparent) !important;
  }

  #app .app-shell > .sidebar .nav .nav-item-icon {
    width: 32px !important;
    min-width: 32px !important;
    height: 32px !important;
    min-height: 32px !important;
    border-radius: 10px !important;
    color: currentColor !important;
    background: color-mix(in srgb, var(--cg-elevated) 64%, transparent) !important;
  }

  #app .app-shell > .sidebar .nav .nav-item.active .nav-item-icon {
    color: var(--aios-accent) !important;
    background: color-mix(in srgb, var(--aios-accent) 12%, transparent) !important;
  }

  #app .app-shell > .sidebar .nav .nav-item-icon svg {
    width: 19px !important;
    height: 19px !important;
  }

  #app .app-shell > .sidebar .nav .nav-item-label {
    font-size: 14px !important;
    font-weight: 620 !important;
  }

  .app-shell.chat-shell .aios-chat-sidebar {
    width: calc(100% - 16px) !important;
    margin-left: 16px !important;
  }

  .app-shell.chat-shell,
  .app-shell.chat-shell > .main,
  .app-shell.chat-shell .content,
  .app-shell.chat-shell .content:has(.aios-chat-app) {
    height: 100dvh !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
    padding: 0 !important;
    background: var(--cg-bg, var(--aios-bg)) !important;
    overflow: hidden !important;
  }

  .app-shell.chat-shell .aios-chat-app,
  .app-shell.chat-shell .aios-chat-app.chat-roomy {
    height: 100dvh !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
  }

  .app-shell.chat-shell .aios-chat-main {
    position: relative !important;
    grid-template-rows: minmax(0, 1fr) auto !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar {
    position: absolute !important;
    inset: 14px 16px auto !important;
    z-index: calc(var(--z-shell) + 8) !important;
    width: auto !important;
    min-height: 46px !important;
    height: 46px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    pointer-events: none !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-app-menu,
  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-exit,
  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-title {
    display: none !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-selectors {
    display: none !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-sidebar-toggle,
  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-new {
    width: 46px !important;
    min-width: 46px !important;
    height: 46px !important;
    min-height: 46px !important;
    display: grid !important;
    place-items: center !important;
    color: var(--cg-text) !important;
    border: 1px solid color-mix(in srgb, var(--cg-line) 72%, transparent) !important;
    border-radius: 50% !important;
    background: color-mix(in srgb, var(--cg-elevated) 68%, transparent) !important;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .09) !important;
    -webkit-backdrop-filter: blur(20px) saturate(145%) !important;
    backdrop-filter: blur(20px) saturate(145%) !important;
    pointer-events: auto !important;
    transition: transform 180ms var(--motion-premium), background-color 180ms ease, box-shadow 180ms ease !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-new {
    margin-left: auto !important;
  }

  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-sidebar-toggle:hover,
  html body #app .app-shell.chat-shell .aios-chat-topbar > .chat-mobile-new:hover {
    transform: translateY(-1px) !important;
    background: color-mix(in srgb, var(--cg-elevated) 84%, transparent) !important;
    box-shadow: 0 12px 28px rgba(15, 23, 42, .13) !important;
  }

  .app-shell.chat-shell .chat-model-menu {
    margin-left: auto !important;
    pointer-events: auto !important;
  }

  .app-shell.chat-shell .composer-wrap {
    background: var(--cg-bg, var(--aios-bg)) !important;
  }

  .app-shell.chat-shell .welcome-screen h1,
  .app-shell.chat-shell .welcome-screen > p {
    width: 100% !important;
    margin-inline: auto !important;
    text-align: center !important;
  }

  .app-shell.chat-shell .conversation-main strong {
    display: -webkit-box !important;
    overflow: hidden !important;
    white-space: normal !important;
    line-height: 1.3 !important;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
}

/* The composer floats over the conversation instead of creating a separate footer. */
@media (min-width: 721px) {
  .app-shell.chat-shell .aios-chat-main {
    position: relative !important;
  }

  .app-shell.chat-shell .aios-chat-messages {
    padding-bottom: 164px !important;
    scroll-padding-bottom: 164px !important;
  }

  .app-shell.chat-shell .composer-wrap {
    position: absolute !important;
    inset: auto 0 0 !important;
    z-index: calc(var(--z-shell) + 5) !important;
    width: 100% !important;
    padding: 18px 20px 20px !important;
    pointer-events: none !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  .app-shell.chat-shell .claude-composer {
    pointer-events: auto !important;
    background: color-mix(in srgb, var(--cg-elevated) 76%, transparent) !important;
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.14) !important;
    -webkit-backdrop-filter: blur(24px) saturate(145%) !important;
    backdrop-filter: blur(24px) saturate(145%) !important;
  }

  body[data-theme="dark"] .app-shell.chat-shell .claude-composer {
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.32) !important;
  }
}
}