/* Codex Mobile — Studio. Shared scale, neutral surfaces, conversation first. */
@layer reset, base, layout, components, responsive;

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
  }
  body,
  h1,
  h2,
  h3,
  h4,
  p {
    margin: 0;
  }
  button,
  input,
  textarea,
  select {
    font: inherit;
    color: inherit;
  }
  button {
    cursor: pointer;
  }
  button,
  a,
  input,
  select,
  textarea,
  summary {
    -webkit-tap-highlight-color: transparent;
  }
  button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
  }
  svg {
    display: block;
    flex-shrink: 0;
  }
  [data-icon] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
}

@layer base {
  :root {
    color-scheme: light;
    --bg: #fdfdfc;
    --sidebar: #f4f4f2;
    --surface: #ffffff;
    --soft: #f5f5f3;
    --hover: #eaeae7;
    --line: #dededb;
    --line-soft: #eeedea;
    --text: #222320;
    --muted: #6a6b67;
    --subtle: #787974;
    --accent: #5261c9;
    --accent-soft: #eeeffb;
    --primary: #252623;
    --primary-text: #ffffff;
    --danger: #b43d42;
    --code: #f3f3f1;
    --shadow: 0 16px 64px #25262314, 0 2px 8px #25262308;
    --read-width: 780px;
    --ease: cubic-bezier(0.2, 0.75, 0.25, 1);
  }
  :root {
    --diff-add-bg: #dcf6e3;
    --diff-add-fg: #1a7f37;
    --diff-del-bg: #fde4e4;
  }
  :root[data-theme='dark'] {
    --diff-add-bg: #2ea04329;
    --diff-add-fg: #6fdc8c;
    --diff-del-bg: #f8514929;
  }
  :root[data-theme='dark'] {
    color-scheme: dark;
    --bg: #18191c;
    --sidebar: #121315;
    --surface: #202125;
    --soft: #24252a;
    --hover: #2c2d32;
    --line: #393a41;
    --line-soft: #2c2d33;
    --text: #e9e9ec;
    --muted: #a5a6b0;
    --subtle: #92939e;
    --accent: #a8b1ff;
    --accent-soft: #292c42;
    --primary: #e5e5e9;
    --primary-text: #1b1c20;
    --danger: #f2949a;
    --code: #111215;
    --shadow: 0 16px 64px #0005, 0 2px 8px #0002;
  }
  body {
    overflow: hidden;
    background: var(--bg);
    color: var(--text);
    font:
      14px/1.6 -apple-system,
      BlinkMacSystemFont,
      'Segoe UI',
      'PingFang SC',
      'Microsoft YaHei',
      sans-serif;
  }
  input,
  select,
  textarea {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    outline: none;
  }
  input:focus,
  textarea:focus,
  select:focus {
    border-color: var(--subtle);
  }
  :focus-visible {
    outline: 1px solid var(--subtle);
    outline-offset: 3px;
  }
  input:focus-visible,
  textarea:focus-visible,
  select:focus-visible {
    outline: none;
  }
  ::selection {
    background: var(--accent-soft);
    color: var(--text);
  }
  [hidden],
  .hidden {
    display: none !important;
  }
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .mobile-only {
    display: none;
  }
  .muted {
    color: var(--muted);
  }
  .error {
    color: var(--danger);
    font-size: 13px;
    white-space: pre-wrap;
  }
  .error:not(:empty) {
    margin-top: 12px;
  }
  .wide {
    width: 100%;
  }
}

@layer layout {
  .app {
    display: grid;
    grid-template-columns: 264px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    height: var(--app-height, 100dvh);
    overflow: hidden;
  }
  .sidebar {
    display: flex;
    min-height: 0;
    flex-direction: column;
    gap: 16px;
    padding: 24px 16px 16px;
    background: var(--sidebar);
    border-right: 1px solid var(--line-soft);
  }
  .main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background: var(--bg);
  }
  .topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 76px;
    flex-shrink: 0;
    padding: 15px 32px;
    border-bottom: 1px solid var(--line-soft);
  }
  .heading {
    min-width: 0;
    flex: 1;
  }
  .heading h1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.025em;
  }
  .heading p {
    margin-top: 2px;
    color: var(--muted);
    font-size: 12px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
  }
  .toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    height: 50px;
    flex-shrink: 0;
    padding: 0 32px;
  }
  .toolbar-left,
  .toolbar-right {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
  }
  .toolbar-right {
    gap: 8px;
  }
  .conversation-shell {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
  }
  .conversation {
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow: auto;
    padding: 28px max(32px, calc((100% - var(--read-width)) / 2)) 40px;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
    overflow-anchor: none;
  }
  .composer-area {
    flex-shrink: 0;
    padding: 10px max(32px, calc((100% - var(--read-width)) / 2)) max(12px, env(safe-area-inset-bottom));
    background: var(--bg);
  }
  .composer {
    padding: 4px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 3px 14px #00000004;
    transition:
      border-color 0.18s,
      box-shadow 0.18s;
  }
  .composer:focus-within {
    border-color: var(--subtle);
    box-shadow: 0 3px 18px #00000008;
  }
  .composer textarea {
    display: block;
    width: 100%;
    height: 54px;
    min-height: 54px;
    max-height: 152px;
    padding: 13px 14px 8px;
    border: none;
    border-radius: 12px;
    background: transparent;
    resize: none;
    font-size: 15px;
    line-height: 1.6;
    box-shadow: none;
    outline: none;
  }
  .composer textarea::placeholder {
    color: var(--subtle);
  }
  .composer-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 5px 5px;
  }
  .composer-hint {
    color: var(--subtle);
    margin-top: 7px;
    font-size: 11px;
    text-align: center;
    overflow-wrap: anywhere;
  }
}

@layer components {
  /* Identity and navigation */
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 6px 7px;
  }
  .brand-small,
  .brand-symbol {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--primary);
    color: var(--primary-text);
  }
  .brand strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.035em;
  }
  .brand b,
  .brand-lockup b {
    font-weight: 400;
    color: var(--muted);
  }
  .brand small {
    display: block;
    color: var(--muted);
    font-size: 11px;
  }
  .brand .icon-button {
    margin-left: auto;
  }
  .new-task {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 43px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: var(--surface);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    text-align: left;
    box-shadow: 0 1px 2px #00000003;
    transition: background 0.15s;
  }
  .new-task > [data-icon]:last-child {
    margin-left: auto;
    color: var(--subtle);
  }
  .search-wrap {
    position: relative;
    display: flex;
    align-items: center;
  }
  .search-wrap > [data-icon] {
    position: absolute;
    left: 11px;
    color: var(--subtle);
    pointer-events: none;
  }
  .search {
    width: 100%;
    height: 40px;
    padding: 9px 10px 9px 35px;
    background: transparent;
    border-color: transparent;
    font-size: 13px;
  }
  .search::placeholder {
    color: var(--muted);
  }
  .search:focus {
    background: var(--surface);
    border-color: var(--subtle);
  }
  .sidebar-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 9px;
    color: var(--muted);
    font-size: 11px;
  }
  .text-button,
  .nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: none;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
  }
  .text-button {
    min-height: 32px;
    padding: 0 3px;
  }
  .thread-list {
    flex: 1;
    min-height: 0;
    overflow: auto;
    margin: -6px -5px 0;
    padding: 0 5px;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
  }
  .project-group {
    margin-bottom: 17px;
  }
  .project-heading {
    position: sticky;
    top: 0;
    z-index: 1;
    display: grid;
    grid-template-columns: 14px minmax(0, 1fr) auto;
    align-items: center;
    gap: 7px;
    width: 100%;
    min-height: 36px;
    padding: 6px 8px;
    border: none;
    background: var(--sidebar);
    color: var(--muted);
    text-align: left;
  }
  .project-chevron {
    display: flex;
    align-items: center;
  }
  .project-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    font-weight: 600;
  }
  .project-count {
    color: var(--subtle);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
  }
  .project-threads {
    margin-left: 6px;
  }
  .thread {
    display: block;
    position: relative;
    width: 100%;
    margin: 2px 0;
    padding: 10px 11px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    text-align: left;
    transition: background 0.15s;
  }
  .thread.selected {
    background: var(--hover);
  }
  .thread.selected::before {
    content: '';
    position: absolute;
    left: 0;
    top: 17px;
    width: 3px;
    height: 16px;
    border-radius: 4px;
    background: var(--accent);
  }
  .thread-title {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    line-height: 1.6;
  }
  .thread.selected .thread-title {
    font-weight: 600;
  }
  .thread-meta {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    color: var(--subtle);
    margin-top: 3px;
    font-size: 11px;
    font-variant-numeric: tabular-nums;
  }
  .thread-status.running {
    color: var(--accent);
  }
  .sidebar-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }
  .nav-button {
    min-height: 38px;
    padding: 0 7px;
    border-radius: 8px;
  }
  .sidebar-footer {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 0 7px;
    color: var(--muted);
    font-size: 11px;
  }
  .sidebar-version {
    margin-left: auto;
    color: var(--subtle);
    font-size: 10px;
    letter-spacing: 0.03em;
  }
  .list-empty {
    padding: 18px 10px;
    color: var(--muted);
    font-size: 13px;
  }

  .sidebar-order {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
  }
  .sidebar-order .list-order-control .picker-trigger {
    width: auto;
    gap: 6px;
    height: 34px;
    padding: 0 5px;
    color: var(--muted);
    font-size: 12px;
  }
  .sidebar-order .picker-caption {
    flex: none;
  }
  .sidebar-label {
    padding-left: 4px;
  }
  .archive-indicator {
    color: var(--subtle);
    font-size: 11px;
    white-space: nowrap;
  }
  .priority-heading {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 36px;
    padding: 6px 9px;
    background: var(--sidebar);
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
  }
  .priority-heading .project-name {
    font-weight: 500;
  }
  .priority-group {
    margin-bottom: 20px;
  }
  .thread-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .thread-title-row .thread-title {
    flex: 1;
    min-width: 0;
  }
  .thread-state {
    display: flex;
    flex-shrink: 0;
    color: var(--muted);
  }
  .thread-state.running {
    color: var(--accent);
  }
  .thread-state.running > svg {
    animation: thread-spin 1.2s linear infinite;
  }
  .thread-state.attention,
  .thread-status.attention {
    color: var(--danger);
  }
  .thread-project {
    display: flex;
    align-items: center;
    gap: 5px;
    min-width: 0;
  }
  .thread-project > span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .thread-time {
    flex-shrink: 0;
    white-space: nowrap;
  }
  @media (max-width: 850px) {
    .sidebar-order .list-order-control .picker-trigger {
      height: 40px;
    }
  }

  /* Task context and view controls */
  .connection {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
  }
  .connection i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--subtle);
  }
  .connection.online i {
    background: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
  }
  .banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 32px;
    font-size: 12px;
    color: var(--danger);
    background: var(--soft);
  }
  .operation-banner {
    color: var(--accent);
    background: var(--accent-soft);
  }
  .operation-banner > [data-icon] {
    animation: thread-spin 1.1s linear infinite;
  }
  .banner-copy {
    overflow-wrap: anywhere;
  }
  .view-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--text);
    font-size: 12px;
    white-space: nowrap;
    font-weight: 600;
  }
  .sync-time {
    color: var(--subtle);
    font-size: 11px;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
  }
  .toolbar-divider {
    height: 15px;
    width: 1px;
    background: var(--line);
    margin: 0 3px;
  }
  .activity-toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: 7px;
    min-height: 40px;
    padding: 0 3px;
    color: var(--muted);
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
  }
  .activity-toggle input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
  }
  .toggle-track {
    width: 25px;
    height: 15px;
    border-radius: 12px;
    background: var(--line);
    transition: background 0.18s;
    pointer-events: none;
  }
  .toggle-track::before {
    content: '';
    display: block;
    width: 11px;
    height: 11px;
    margin: 2px;
    border-radius: 50%;
    background: var(--surface);
    box-shadow: 0 1px 2px #0003;
    transition: transform 0.18s var(--ease);
  }
  .activity-toggle input:checked + .toggle-track {
    background: var(--accent);
  }
  .activity-toggle input:checked + .toggle-track::before {
    transform: translateX(10px);
    background: #fff;
  }
  .activity-toggle:has(:focus-visible) {
    outline: 1px solid var(--subtle);
    outline-offset: 2px;
    border-radius: 6px;
  }
  .select-wrap {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
  }
  .select-wrap select {
    appearance: none;
    width: 100%;
    padding: 10px 30px 10px 12px;
    text-overflow: ellipsis;
    cursor: pointer;
  }
  .select-wrap > [data-icon]:last-child {
    position: absolute;
    right: 10px;
    color: var(--muted);
    pointer-events: none;
  }
  .icon-button,
  .dialog-close,
  .copy {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
    transition:
      background 0.15s,
      color 0.15s;
  }
  .icon-button.mobile-only {
    display: none;
  }

  /* Readable messages, distinct phases, quieter tool details */
  #messages {
    min-width: 0;
  }
  .message {
    margin: 0 0 30px;
    overflow-wrap: anywhere;
  }
  .message.user {
    width: fit-content;
    max-width: 88%;
    margin-left: auto;
    padding: 12px 17px;
    border-radius: 16px 16px 5px 16px;
    background: var(--soft);
  }
  .message-label {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 30px;
    margin-bottom: 5px;
    font-size: 12px;
    color: var(--muted);
  }
  .message-label .author-name {
    font-weight: 600;
    color: var(--text);
  }
  .agent-label > svg {
    color: var(--text);
  }
  .message-phase {
    border-radius: 5px;
    padding: 1px 6px;
    font-size: 10px;
    line-height: 1.7;
    color: var(--muted);
    background: var(--soft);
  }
  .message.final .message-phase {
    color: var(--accent);
    background: var(--accent-soft);
  }
  .message.user .message-label {
    min-height: 20px;
    margin-bottom: 3px;
    font-size: 11px;
  }
  .copy {
    width: 30px;
    height: 28px;
    flex-shrink: 0;
    margin-left: auto;
    opacity: 0.6;
  }
  .message-text {
    font-size: 15px;
    line-height: 1.85;
  }
  .message-text p {
    margin: 7px 0;
  }
  .message-text p:has(> br:only-child) {
    display: none;
  }
  .message-text > :first-child {
    margin-top: 0;
  }
  .message-text > :last-child {
    margin-bottom: 0;
  }
  .message-text h2,
  .message-text h3,
  .message-text h4 {
    margin: 22px 0 9px;
    font-size: 18px;
    line-height: 1.55;
    letter-spacing: -0.02em;
    font-weight: 600;
  }
  .message-text h3 {
    font-size: 17px;
  }
  .message-text h4 {
    font-size: 16px;
  }
  .message-text ul,
  .message-text ol {
    margin: 12px 0;
    padding-left: 22px;
  }
  .message-text li {
    margin: 8px 0;
    padding-left: 2px;
  }
  .message-text li::marker {
    color: var(--muted);
  }
  .message-text blockquote {
    margin: 14px 0;
    padding: 2px 14px;
    border-left: 2px solid var(--line);
    color: var(--muted);
  }
  .message-text strong {
    font-weight: 600;
  }
  .message-text a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }
  .message-text a.session-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    max-width: 100%;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--soft);
    text-decoration: none;
    vertical-align: baseline;
    overflow-wrap: anywhere;
  }
  .message-text a.session-link svg {
    flex: none;
  }
  .message-text code {
    padding: 2px 5px;
    border-radius: 4px;
    background: var(--soft);
    font:
      0.87em/1.7 ui-monospace,
      SFMono-Regular,
      Consolas,
      monospace;
  }
  .message-text pre,
  .activity pre {
    overflow: auto;
    padding: 16px;
    margin: 14px 0;
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    background: var(--code);
    color: var(--text);
    font:
      12px/1.8 ui-monospace,
      SFMono-Regular,
      Consolas,
      monospace;
    white-space: pre;
    scrollbar-width: thin;
  }
  .message-text pre.code-block {
    position: relative;
    padding-top: 40px;
  }
  .message-text pre.code-block .code-copy {
    position: absolute;
    top: 6px;
    right: 6px;
    margin: 0;
  }
  .message-text pre code {
    padding: 0;
    border-radius: 0;
    background: none;
    font: inherit;
  }
  .message-text .table-wrap {
    max-width: 100%;
    overflow-x: auto;
    margin: 14px 0;
    border: 1px solid var(--line-soft);
    border-radius: 10px;
  }
  .message-text table {
    width: 100%;
    border-collapse: collapse;
    min-width: 100%;
  }
  .message-text th,
  .message-text td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--line-soft);
    text-align: left;
    vertical-align: top;
  }
  .message-text th {
    background: var(--code);
    font-weight: 600;
    white-space: nowrap;
  }
  .message-text tbody tr:last-child td {
    border-bottom: 0;
  }
  .message.commentary {
    padding-left: 15px;
    border-left: 2px solid var(--line);
    margin-bottom: 22px;
  }
  .message.commentary .message-text {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.85;
  }
  .message.commentary .agent-label > svg {
    color: var(--muted);
  }
  .message.commentary .message-label {
    min-height: 24px;
    margin-bottom: 4px;
  }
  .message.commentary .author-name {
    color: var(--muted);
    font-weight: 500;
  }
  .progress-summary {
    margin: 0 0 14px;
    padding: 0 12px;
    border-left: 2px solid var(--line);
    color: var(--muted);
    font-size: 12px;
  }
  .activity {
    margin: 0 0 8px;
    border: 1px solid var(--line-soft);
    border-radius: 9px;
    background: var(--soft);
  }
  .activity summary {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    padding: 8px 12px;
    color: var(--muted);
    list-style: none;
    font-size: 12px;
    cursor: pointer;
  }
  .activity summary::-webkit-details-marker {
    display: none;
  }
  .activity summary > svg {
    transition: transform 0.18s;
    flex-shrink: 0;
  }
  .activity[open] summary > svg:first-child {
    transform: rotate(90deg);
  }
  .activity summary > .activity-title {
    flex-shrink: 0;
    white-space: nowrap;
  }
  .activity-status {
    margin-left: auto;
    white-space: nowrap;
    color: var(--subtle);
    font-size: 11px;
  }
  .activity.running {
    border-color: var(--accent);
  }
  .activity.running .activity-status {
    color: var(--accent);
  }
  .activity-body {
    padding: 0 12px 12px;
  }
  .activity-label {
    margin-top: 7px;
    color: var(--muted);
    font-size: 11px;
  }
  .activity pre {
    max-height: 340px;
    padding: 12px;
    margin: 5px 0;
    font-size: 11px;
  }
  .receipt-status {
    margin-top: 9px;
    color: var(--muted);
    font-size: 11px;
    overflow-wrap: anywhere;
  }
  .receipt-status.failed,
  .receipt-status.unknown {
    color: var(--danger);
  }
  .receipt-status button {
    margin-left: 8px;
  }
  .older,
  .jump-latest {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 36px;
    padding: 7px 13px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    color: var(--muted);
    font-size: 12px;
  }
  .older {
    margin: 0 auto 28px;
  }
  .jump-latest {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 3px 12px #0000000c;
    color: var(--text);
    animation: appear 0.16s var(--ease);
  }
  .empty {
    max-width: 400px;
    margin: 12vh auto 0;
    text-align: center;
  }
  .empty-mark {
    display: grid;
    place-items: center;
    width: 60px;
    height: 60px;
    margin: 0 auto 26px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
  }
  .empty-kicker {
    font-size: 12px;
    color: var(--muted);
  }
  .empty h2 {
    margin-top: 6px;
    font-size: 24px;
    font-weight: 500;
    letter-spacing: -0.03em;
  }
  .empty p {
    margin-top: 13px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.9;
  }
  .empty.hidden ~ #messages:empty::before {
    content: '正在读取对话…';
    display: block;
    padding: 40px 0;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
  }

  /* Composer and attachments */
  .attach-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 36px;
    min-width: 36px;
    padding: 0 8px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
  }
  .composer-controls .model-control {
    flex: 0 1 250px;
  }
  .composer-controls .effort-control {
    flex: 0 0 110px;
  }
  .composer-controls select {
    height: 36px;
    padding: 0 25px 0 8px;
    border-color: transparent;
    border-radius: 7px;
    background: transparent;
    font-size: 12px;
    color: var(--muted);
  }
  .model-control select {
    font-weight: 500;
    color: var(--text);
  }
  .composer-controls .send {
    margin-left: auto;
  }
  .send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    padding: 0;
    border: none;
    border-radius: 11px;
    background: var(--primary);
    color: var(--primary-text);
    transition:
      transform 0.16s var(--ease),
      opacity 0.16s;
  }
  .send:active:not(:disabled) {
    transform: scale(0.94);
  }
  .message-images {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
  }
  .message-images img {
    width: 122px;
    max-height: 170px;
    object-fit: contain;
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: zoom-in;
  }
  .rendered-image-link {
    display: block;
    width: max-content;
    max-width: 100%;
    margin: 12px 0;
  }
  .rendered-image {
    display: block;
    max-width: 100%;
    max-height: 70dvh;
    object-fit: contain;
    border: 1px solid var(--line);
    border-radius: 10px;
  }
  /* One row that scrolls sideways: up to 3 images and 5 files must not push the
     composer up the screen. The padding leaves room for the corner remove buttons. */
  .attachment-preview {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
  }
  .attachment-preview:not(:empty) {
    padding: 12px;
  }
  .attachment-preview > div {
    position: relative;
    flex: none;
  }
  .attachment-preview img.missing {
    background: var(--soft);
  }
  .file-chip {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 208px;
    max-width: 100%;
    min-height: 56px;
    padding: 8px 12px 8px 9px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
  }
  .file-chip-icon {
    display: grid;
    flex: none;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 7px;
    background: var(--soft);
    color: var(--muted);
  }
  .file-chip[data-category='pdf'] .file-chip-icon {
    color: #d0473f;
  }
  .file-chip[data-category='doc'] .file-chip-icon {
    color: #3a6fd8;
  }
  .file-chip[data-category='sheet'] .file-chip-icon {
    color: #1f8f50;
  }
  .file-chip[data-category='slides'] .file-chip-icon {
    color: #d9782b;
  }
  .file-chip[data-category='video'] .file-chip-icon,
  .file-chip[data-category='audio'] .file-chip-icon {
    color: #8a5ad8;
  }
  .file-chip-text {
    display: grid;
    min-width: 0;
    gap: 2px;
  }
  .file-chip-name,
  .file-chip-meta {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .file-chip-name {
    font-size: 13px;
    font-weight: 550;
  }
  .file-chip-meta {
    color: var(--muted);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
  }
  .file-chip-progress {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 3px;
    border-radius: 0 0 0 8px;
    background: var(--accent);
    transition: width 0.25s var(--ease);
  }
  .file-chip.uploading .file-chip-icon {
    animation: chip-pulse 1.4s ease-in-out infinite;
  }
  .message-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
  }
  .message-files .file-chip {
    width: 236px;
    min-height: 52px;
  }
  .attachment-preview img {
    display: block;
    width: 56px;
    height: 56px;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: 8px;
  }
  .attachment-preview button {
    position: absolute;
    right: -7px;
    top: -7px;
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    padding: 0;
  }

  /* Native-style effort slider: one scale, separate inheritance action. */
  .composer-controls select:focus {
    border-color: transparent;
  }
  .composer-controls select:focus-visible {
    outline: none;
    box-shadow: inset 0 -1px var(--muted);
  }
  .dialog-form select:focus-visible {
    outline: none;
    border-color: var(--subtle);
    box-shadow: none;
  }
  .effort-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 7px;
    min-width: 0;
    width: 100%;
    height: 36px;
    padding: 0 9px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
  }
  .effort-caption {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .effort-trigger[aria-expanded='true'] {
    background: var(--soft);
    color: var(--text);
  }
  .effort-trigger:focus-visible {
    outline: none;
    box-shadow: inset 0 -1px var(--muted);
    color: var(--text);
  }
  .effort-field {
    flex: 1;
    min-width: 0;
  }
  .effort-field > span {
    display: block;
    font-size: 12px;
    font-weight: 500;
  }
  .effort-field > .select-wrap {
    margin-top: 7px;
  }
  .effort-field .effort-trigger {
    height: 43px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    font-size: 13px;
  }
  .effort-panel {
    --effort-blue: #339cff;
    --effort-track: #e7e6e7;
    position: fixed;
    inset: auto;
    z-index: 50;
    width: 288px;
    margin: 0;
    padding: 10px 12px 6px;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: auto;
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
    font-size: 13px;
    overscroll-behavior: contain;
  }
  .effort-panel:popover-open {
    animation: appear 0.16s var(--ease);
  }
  .effort-panel::backdrop {
    background: transparent;
  }
  .effort-head {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 32px;
  }
  .effort-heading {
    display: flex;
    align-items: center;
    gap: 9px;
    flex: 1;
    min-width: 0;
    padding: 0 38px 0 2px;
  }
  .effort-value {
    display: block;
    flex-shrink: 0;
    color: var(--effort-blue);
    font-size: 16px;
    line-height: 1.35;
    font-weight: 600;
    letter-spacing: -0.02em;
  }
  .effort-model {
    display: block;
    min-width: 0;
    margin-left: auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--muted);
    font-size: 11px;
  }
  .effort-reset {
    position: absolute;
    right: 0;
    top: 0;
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
  }
  .effort-reset:disabled {
    opacity: 0.3;
  }
  .effort-rail {
    position: relative;
    margin: 4px 1px 0;
    height: 40px;
  }
  .effort-panel .effort-range {
    position: relative;
    z-index: 2;
    display: block;
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    height: 40px;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 30px;
    background: transparent;
    cursor: pointer;
  }
  .effort-range:focus {
    border: none;
    box-shadow: none;
  }
  .effort-range:focus-visible {
    outline: none;
  }
  .effort-range::-webkit-slider-runnable-track {
    height: 24px;
    border-radius: 30px;
    background: transparent;
  }
  .effort-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 30px;
    height: 30px;
    margin-top: -3px;
    border: 1px solid #e2e2e6;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 4px #15162a24;
  }
  .effort-panel:has(.effort-range:focus-visible) .effort-value {
    text-decoration: underline;
    text-decoration-color: var(--subtle);
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
  }
  .effort-range::-moz-range-track {
    height: 24px;
    border-radius: 30px;
    background: transparent;
  }
  .effort-range::-moz-range-thumb {
    box-sizing: border-box;
    width: 30px;
    height: 30px;
    border: 1px solid #e2e2e6;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 4px #15162a24;
  }
  .effort-ticks {
    pointer-events: none;
    position: absolute;
    z-index: 1;
    inset: 18px 15px auto;
    display: flex;
    justify-content: space-between;
    height: 3px;
  }
  .effort-ticks span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #acadb3;
  }
  .effort-ticks span.passed {
    background: #ffffff70;
  }
  :root[data-theme='dark'] .effort-panel {
    --effort-blue: #459eff;
    --effort-track: #3b3c43;
  }
  .effort-track {
    position: absolute;
    inset: 8px 0;
    overflow: hidden;
    border-radius: 30px;
    background: var(--effort-track);
    pointer-events: none;
  }
  .effort-fill {
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--effort-fill, 0%);
    overflow: hidden;
    background: var(--effort-blue);
  }
  .effort-sparkles {
    display: none;
  }
  .effort-panel[data-effort='ultra'] .effort-value {
    color: #a066f5;
  }
  :root[data-theme='dark'] .effort-panel[data-effort='ultra'] .effort-value {
    color: #ba94ff;
  }
  .effort-panel[data-effort='ultra'] .effort-fill {
    background: linear-gradient(100deg, #385cde 0%, #7760f2 35%, #b37bff 68%, #8668ed 100%);
    background-size: 200% 100%;
  }
  .effort-panel[data-effort='ultra'] .effort-sparkles {
    display: block;
    position: absolute;
    inset: 0;
  }
  .effort-sparkles::before,
  .effort-sparkles::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 8% 31%, #ffffffb0 0 1px, transparent 2px),
      radial-gradient(circle at 18% 72%, #ffffff88 0 1px, transparent 2px),
      radial-gradient(circle at 31% 22%, #ffffffb0 0 1px, transparent 2px),
      radial-gradient(circle at 44% 60%, #ffffff9c 0 1.2px, transparent 2.5px),
      radial-gradient(circle at 63% 34%, #ffffffb0 0 1px, transparent 2px),
      radial-gradient(circle at 74% 73%, #ffffff88 0 1px, transparent 2px),
      radial-gradient(circle at 91% 42%, #ffffffb0 0 1px, transparent 2px);
  }
  .effort-sparkles::after {
    transform: translateX(9px) scaleY(-1);
    opacity: 0.5;
  }
  .effort-panel[data-effort='ultra']:is(:popover-open, :not([popover]):not([hidden])) .effort-fill {
    animation: effort-ultra-flow 4s ease-in-out infinite;
  }
  .effort-panel[data-effort='ultra']:is(:popover-open, :not([popover]):not([hidden])) .effort-sparkles::before {
    animation: effort-ultra-shimmer 2.8s ease-in-out infinite;
  }
  .effort-panel[data-effort='ultra']:is(:popover-open, :not([popover]):not([hidden])) .effort-sparkles::after {
    animation: effort-ultra-shimmer 3.6s ease-in-out -1.8s infinite reverse;
  }
  .effort-stops {
    display: grid;
    grid-template-columns: repeat(var(--effort-count, 1), minmax(0, 1fr));
    gap: 0;
    margin: 0 -4px;
  }
  .effort-stops button {
    min-width: 0;
    min-height: 32px;
    padding: 4px 0;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--muted);
    font-size: 10px;
    white-space: nowrap;
  }
  .effort-stops button[aria-pressed='true'] {
    color: var(--text);
    font-weight: 650;
  }
  .effort-stops button:focus-visible,
  .effort-reset:focus-visible {
    outline: none;
    background: var(--soft);
    box-shadow: inset 0 -1px var(--muted);
  }
  @media (max-width: 850px) {
    .effort-trigger {
      height: 40px;
      padding: 0 5px;
      font-size: 13px;
    }
    .effort-stops button {
      min-height: 36px;
    }
    .effort-rail,
    .effort-panel .effort-range {
      height: 44px;
    }
    .effort-track {
      inset-block: 10px;
    }
    .effort-ticks {
      top: 20px;
    }
  }
  @media (hover: hover) {
    .effort-trigger:hover,
    .effort-reset:not(:disabled):hover,
    .effort-stops button:hover {
      color: var(--text);
      background: var(--soft);
    }
  }

  /* One menu surface for models, projects and appearance. */
  .picker-trigger {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
    width: 100%;
    height: 36px;
    padding: 0 8px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--text);
    font-size: 12px;
    text-align: left;
  }
  .picker-caption {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .picker-trigger > svg {
    color: var(--muted);
  }
  .picker-symbol {
    display: inline-flex;
    align-items: center;
    color: var(--muted);
  }
  .picker-trigger[aria-expanded='true'] {
    background: var(--soft);
  }
  .picker-trigger:focus-visible {
    outline: none;
    box-shadow: inset 0 -1px var(--subtle);
    background: var(--soft);
  }
  .theme-control .picker-trigger {
    width: 70px;
    height: 40px;
    padding: 0 5px;
    color: var(--muted);
  }
  .picker-field {
    flex: 1;
    min-width: 0;
  }
  .picker-field > span {
    display: block;
    font-size: 12px;
    font-weight: 500;
  }
  .project-field {
    margin-top: 18px;
  }
  .model-field {
    flex: 1.6;
  }
  .picker-field > .select-wrap {
    margin-top: 7px;
  }
  .picker-field .picker-trigger {
    height: 43px;
    padding: 0 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    font-size: 13px;
  }
  .picker-panel {
    position: fixed;
    inset: auto;
    z-index: 50;
    display: flex;
    flex-direction: column;
    width: 310px;
    margin: 0;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: var(--surface);
    color: var(--text);
    box-shadow:
      0 10px 32px #00000016,
      0 2px 5px #00000008;
    overflow: hidden;
  }
  .picker-panel[popover]:not(:popover-open) {
    display: none;
  }
  .picker-panel:popover-open {
    animation: appear 0.14s var(--ease);
  }
  .picker-panel::backdrop {
    background: transparent;
  }
  .picker-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 2px 9px 7px;
    border-bottom: 1px solid var(--line-soft);
    color: var(--muted);
    flex-shrink: 0;
  }
  .picker-panel .picker-search input {
    min-width: 0;
    width: 100%;
    height: 35px;
    padding: 5px 0;
    margin: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    font-size: 13px;
  }
  .picker-search input:focus-visible {
    outline: none;
    box-shadow: inset 0 -1px var(--subtle);
  }
  .picker-search input::-webkit-search-cancel-button {
    -webkit-appearance: none;
  }
  .picker-list {
    min-height: 0;
    overflow: auto;
    padding-top: 4px;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
    -webkit-overflow-scrolling: touch;
  }
  .picker-option {
    display: flex;
    align-items: center;
    gap: 9px;
    width: 100%;
    min-height: 38px;
    padding: 8px 10px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--text);
    text-align: left;
    font-size: 13px;
  }
  .picker-option-copy {
    display: block;
    flex: 1;
    min-width: 0;
  }
  .picker-option-title {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .picker-option-copy small {
    display: block;
    margin-top: 2px;
    font-size: 11px;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .picker-check {
    visibility: hidden;
    color: var(--text);
  }
  .picker-option[aria-selected='true'] {
    background: var(--soft);
    font-weight: 500;
  }
  .picker-option[aria-selected='true'] .picker-check {
    visibility: visible;
  }
  .picker-option:focus-visible {
    outline: none;
    background: var(--hover);
    box-shadow: inset 2px 0 var(--subtle);
  }
  .picker-inherit {
    margin-bottom: 4px;
  }
  .picker-custom {
    margin-top: 5px;
    border-top: 1px solid var(--line-soft);
    border-radius: 0 0 7px 7px;
    color: var(--muted);
  }
  .picker-empty {
    padding: 18px 10px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
  }
  .theme-picker {
    width: 170px;
  }
  .list-order-picker {
    width: 268px;
  }
  .list-order-picker .picker-option-copy small {
    white-space: normal;
    line-height: 1.5;
  }
  .theme-picker .picker-list {
    padding: 0;
  }
  #customModelDialog {
    width: min(410px, calc(100vw - 32px));
  }
  #customModelForm .dialog-heading h2 {
    font-size: 21px;
    margin: 0;
  }
  #customModelForm > label {
    margin-top: 24px;
  }
  #customModelId[aria-invalid='true'] {
    border-color: var(--danger);
  }
  :root[data-theme='dark'] .picker-panel {
    box-shadow:
      0 10px 32px #0005,
      0 2px 5px #0002;
  }
  @media (hover: hover) {
    .picker-trigger:hover,
    .picker-option:hover {
      background: var(--soft);
    }
    .picker-option:focus-visible:hover {
      background: var(--hover);
    }
  }
  @media (max-width: 850px) {
    .composer-controls .picker-trigger {
      height: 40px;
      padding: 0 5px;
      font-size: 13px;
    }
    .picker-option {
      min-height: 44px;
    }
    .picker-panel .picker-search input {
      font-size: 16px;
      height: 38px;
    }
  }
  @media (max-width: 360px) {
    .composer-controls .picker-trigger {
      font-size: 12px;
    }
  }

  /* Login: editorial space, no illustration competing with the task. */
  .login-view {
    height: 100dvh;
    overflow: auto;
    display: grid;
    place-items: center;
    padding: 64px;
    background: var(--bg);
  }
  .login-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    align-items: center;
    width: min(1060px, 100%);
    gap: 100px;
  }
  .brand-lockup {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -0.04em;
  }
  .brand-symbol {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }
  .login-editorial {
    margin-top: 96px;
  }
  .kicker {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 24px;
  }
  .login-intro h1 {
    font-size: clamp(40px, 4.7vw, 65px);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 1.22;
  }
  .login-description {
    margin-top: 26px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.9;
  }
  .login-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 56px;
    color: var(--muted);
    font-size: 12px;
  }
  .login-specs > span,
  .login-foot {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .login-card {
    padding: 36px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }
  .login-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 24px;
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    background: var(--soft);
  }
  .login-card h2 {
    font-weight: 600;
    font-size: 26px;
    letter-spacing: -0.04em;
  }
  .login-card > .muted {
    margin: 7px 0 28px;
    font-size: 13px;
  }
  .login-card label {
    display: block;
    margin: 17px 0 7px;
    font-size: 13px;
    font-weight: 500;
  }
  .login-card input {
    display: block;
    width: 100%;
    height: 46px;
    padding: 10px 12px;
    font-size: 15px;
  }
  .primary,
  .secondary,
  .danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 42px;
    padding: 10px 16px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    transition: opacity 0.15s;
  }
  .primary {
    background: var(--primary);
    color: var(--primary-text);
  }
  .secondary {
    background: var(--surface);
    border-color: var(--line);
    color: var(--text);
  }
  .danger {
    background: transparent;
    border-color: var(--line);
    color: var(--danger);
  }
  .login-card .primary {
    margin-top: 24px;
    min-height: 46px;
  }
  .login-foot {
    justify-content: center;
    margin-top: 28px;
    color: var(--muted);
    font-size: 11px;
  }
  .login-meta {
    display: flex;
    justify-content: space-between;
    align-self: end;
    width: min(1060px, 100%);
    margin-top: 50px;
    color: var(--subtle);
    font-size: 11px;
  }

  /* Modals */
  dialog {
    width: min(520px, calc(100vw - 32px));
    max-height: calc(100dvh - 40px);
    overflow: auto;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
    overscroll-behavior: contain;
  }
  dialog[open] {
    animation: appear 0.2s var(--ease);
  }
  dialog::backdrop {
    background: #090a1066;
    backdrop-filter: blur(3px);
  }
  .dialog-form {
    padding: 28px;
  }
  .dialog-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
  }
  .dialog-kicker {
    font-size: 11px;
    color: var(--muted);
  }
  .dialog-heading h2 {
    margin-top: 4px;
    font-size: 24px;
    letter-spacing: -0.03em;
    font-weight: 600;
  }
  .dialog-form > .muted {
    margin: 10px 0 23px;
    font-size: 13px;
  }
  .dialog-form label {
    display: block;
    font-size: 12px;
    font-weight: 500;
  }
  .dialog-form > label {
    margin-top: 18px;
  }
  .dialog-form label > .select-wrap,
  .dialog-form input,
  .dialog-form textarea {
    margin-top: 7px;
  }
  .dialog-form input,
  .dialog-form textarea {
    display: block;
    width: 100%;
    padding: 11px 12px;
    font-size: 15px;
  }
  .dialog-form textarea {
    min-height: 110px;
    resize: vertical;
  }
  .dialog-form select {
    font-size: 13px;
  }
  .composer-settings {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    margin-top: 18px;
  }
  .composer-settings label {
    flex: 1;
    min-width: 0;
  }
  .composer-settings label:first-child {
    flex: 1.6;
  }
  .composer-settings .attach-button {
    height: 42px;
    border: 1px solid var(--line);
    font-size: 12px;
  }
  .dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 25px;
  }
  .app-download {
    margin-top: 16px;
    text-decoration: none;
  }
  .app-update {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--soft);
  }
  .app-update-mark {
    display: grid;
    flex: none;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: var(--surface);
    color: var(--accent);
  }
  .app-update-copy {
    display: grid;
    flex: 1;
    min-width: 0;
    gap: 3px;
  }
  .app-update-title {
    font-size: 14px;
    font-weight: 600;
  }
  .app-update-text {
    color: var(--muted);
    font-size: 12.5px;
    line-height: 1.45;
  }
  .app-update-progress {
    display: block;
    height: 4px;
    margin-top: 4px;
    overflow: hidden;
    border-radius: 2px;
    background: var(--line);
  }
  .app-update-progress > span {
    display: block;
    width: 0;
    height: 100%;
    background: var(--accent);
    transition: width 0.25s var(--ease);
  }
  .app-update-button {
    flex: none;
    min-height: 36px;
    padding: 0 14px;
  }
  .dialog-status {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 13px;
    padding: 9px 10px;
    border: 1px solid var(--accent-soft);
    border-radius: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12px;
    line-height: 1.55;
  }
  .dialog-status > [data-icon] {
    margin-top: 2px;
    animation: thread-spin 1.1s linear infinite;
  }
  .diagnostics-panel {
    margin-top: 20px;
    border-top: 1px solid var(--line-soft);
  }
  .diagnostics-panel summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 14px 0 10px;
    color: var(--muted);
    font-size: 12px;
    cursor: pointer;
    list-style: none;
  }
  .diagnostics-panel summary::-webkit-details-marker {
    display: none;
  }
  .diagnostics-panel summary > [data-icon] {
    transition: transform 0.18s;
  }
  .diagnostics-panel[open] summary > [data-icon] {
    transform: rotate(90deg);
  }
  .diagnostics-content {
    display: grid;
    gap: 16px;
    padding-bottom: 4px;
  }
  .diagnostics-section h3 {
    margin-bottom: 6px;
    color: var(--text);
    font-size: 12px;
    font-weight: 600;
  }
  .diagnostics-section dl {
    display: grid;
    grid-template-columns: minmax(108px, 0.8fr) minmax(0, 1.5fr);
    margin: 0;
    border-top: 1px solid var(--line-soft);
  }
  .diagnostics-section dt,
  .diagnostics-section dd {
    min-width: 0;
    padding: 6px 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: 11px;
    line-height: 1.5;
    overflow-wrap: anywhere;
  }
  .diagnostics-section dt {
    color: var(--muted);
  }
  .diagnostics-section dd {
    margin: 0;
    color: var(--text);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  }
  .dialog-form[data-busy='true'] .dialog-close {
    pointer-events: none;
  }
  #passwordForm {
    margin-top: 24px;
  }
  #passwordForm .primary {
    margin-top: 20px;
  }
  .image-dialog {
    width: max-content;
    max-width: calc(100vw - 24px);
    padding: 12px;
  }
  .image-dialog img {
    display: block;
    max-width: 100%;
    max-height: calc(100dvh - 70px);
    object-fit: contain;
  }
  .image-dialog .dialog-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--surface);
    border: 1px solid var(--line);
  }
  /* Click-through, and placed above the composer by toast() so it never covers the send button. */
  .toast {
    position: fixed;
    z-index: 60;
    left: 50%;
    bottom: max(24px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    width: max-content;
    max-width: min(480px, calc(100vw - 32px));
    padding: 10px 16px;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: var(--primary);
    color: var(--primary-text);
    box-shadow: var(--shadow);
    font-size: 13px;
    pointer-events: none;
    animation: appear 0.2s var(--ease);
  }
  @media (hover: hover) {
    .icon-button:hover,
    .dialog-close:hover,
    .copy:hover,
    .attach-button:hover,
    .nav-button:hover,
    .composer-controls select:hover {
      background: var(--hover);
      color: var(--text);
    }
    .copy:hover {
      opacity: 1;
    }
    .thread:hover {
      background: var(--hover);
    }
    .new-task:hover,
    .older:hover,
    .jump-latest:hover {
      background: var(--soft);
    }
    .text-button:hover {
      color: var(--text);
    }
    .primary:hover {
      opacity: 0.88;
    }
  }
}

@layer responsive {
  @media (max-width: 1100px) {
    .app {
      grid-template-columns: 240px minmax(0, 1fr);
    }
    .login-layout {
      gap: 60px;
    }
    .login-view {
      padding: 48px;
    }
  }
  @media (max-width: 850px) {
    .app {
      grid-template-columns: minmax(0, 1fr);
    }
    .sidebar {
      position: fixed;
      z-index: 30;
      top: 0;
      bottom: 0;
      left: 0;
      width: min(320px, 88vw);
      padding-top: max(20px, env(safe-area-inset-top));
      padding-bottom: max(16px, env(safe-area-inset-bottom));
      transform: translateX(-102%);
      visibility: hidden;
      transition:
        transform 0.24s var(--ease),
        visibility 0.24s;
      border: none;
    }
    .sidebar.open {
      visibility: visible;
      transform: translateX(0);
      box-shadow: 15px 0 50px #0002;
    }
    .mobile-only,
    .icon-button.mobile-only {
      display: inline-flex;
    }
    .backdrop {
      position: fixed;
      z-index: 29;
      inset: 0;
      width: 100%;
      height: 100%;
      padding: 0;
      border: none;
      background: #090a1059;
    }
    .topbar {
      min-height: 64px;
      padding: calc(9px + env(safe-area-inset-top)) 16px 9px 10px;
      gap: 9px;
    }
    .heading h1 {
      font-size: 15px;
    }
    .heading p {
      font-size: 11px;
    }
    .connection {
      font-size: 11px;
      gap: 6px;
    }
    .toolbar {
      height: 44px;
      padding: 0 16px;
    }
    .toolbar-left,
    .toolbar-right {
      gap: 6px;
    }
    .toolbar .sync-time {
      display: none;
    }
    .view-label {
      font-size: 12px;
    }
    .toolbar .icon-button {
      width: 36px;
      height: 40px;
    }
    .activity-toggle {
      min-height: 42px;
    }
    .theme-control select {
      height: 42px;
    }
    .conversation {
      padding: 20px 20px 32px;
    }
    .composer-area {
      padding: 8px 12px max(10px, env(safe-area-inset-bottom));
    }
    .composer textarea {
      height: 52px;
      min-height: 52px;
      max-height: 128px;
      padding: 11px 11px 7px;
      font-size: 16px;
    }
    .composer-controls .model-control {
      flex: 1;
    }
    .composer-controls .effort-control {
      flex-basis: 88px;
    }
    .composer-controls {
      gap: 3px;
      padding: 0 3px 3px;
    }
    .composer-controls select {
      height: 40px;
      padding-left: 5px;
      padding-right: 18px;
      font-size: 13px;
    }
    .composer-controls .select-wrap > [data-icon]:last-child {
      right: 4px;
    }
    .composer-controls .attach-button {
      height: 40px;
      min-width: 36px;
      width: 36px;
      padding: 0;
    }
    .send {
      width: 38px;
      height: 38px;
    }
    .composer-hint {
      font-size: 10px;
      margin-top: 6px;
      line-height: 1.5;
    }
    .message {
      margin-bottom: 28px;
    }
    .message.user {
      max-width: 91%;
      padding: 11px 14px;
    }
    .message-text {
      font-size: 15px;
    }
    .copy {
      width: 34px;
      height: 32px;
    }
    .message.commentary {
      padding-left: 12px;
    }
    .message.commentary .message-text {
      font-size: 14px;
    }
    .jump-latest {
      min-height: 40px;
      bottom: 8px;
    }
    .banner {
      padding: 8px 16px;
    }
    .thread {
      min-height: 58px;
    }
    .project-heading {
      min-height: 40px;
    }
    .search,
    .login-card input,
    .dialog-form input,
    .dialog-form textarea {
      font-size: 16px;
    }
    .empty {
      margin-top: 8vh;
    }
    .empty h2 {
      font-size: 22px;
    }
    .login-view {
      display: block;
      padding: 32px 24px max(28px, env(safe-area-inset-bottom));
      -webkit-overflow-scrolling: touch;
    }
    .login-layout {
      display: block;
      width: min(420px, 100%);
      margin: 0 auto;
    }
    .login-editorial {
      margin-top: 40px;
    }
    .login-intro h1 {
      font-size: 40px;
      line-height: 1.25;
      letter-spacing: -0.055em;
    }
    .kicker {
      display: none;
    }
    .login-description {
      margin-top: 16px;
      font-size: 13px;
    }
    .login-specs {
      display: none;
    }
    .login-card {
      margin-top: 32px;
      padding: 26px;
      border-radius: 16px;
      box-shadow: 0 8px 30px #00000006;
    }
    .login-icon {
      display: none;
    }
    .login-card h2 {
      font-size: 23px;
    }
    .login-card > .muted {
      margin-bottom: 22px;
    }
    .login-meta {
      width: min(420px, 100%);
      margin: 28px auto 0;
    }
    .dialog-form {
      padding: 24px;
    }
  }
  @media (max-width: 360px) {
    .toolbar {
      padding: 0 12px;
    }
    .toolbar-divider {
      margin: 0;
    }
    .conversation {
      padding: 16px 16px 26px;
    }
    .composer-area {
      padding-left: 8px;
      padding-right: 8px;
    }
    .composer-controls .effort-control {
      flex-basis: 75px;
    }
    .composer-controls select {
      font-size: 12px;
    }
    .connection {
      font-size: 10px;
    }
    .message-text {
      font-size: 14px;
    }
    .message.commentary .message-text {
      font-size: 13px;
    }
    .login-view {
      padding-left: 18px;
      padding-right: 18px;
    }
    .login-card {
      padding: 22px;
    }
    .dialog-form {
      padding: 20px;
    }
    .composer-settings {
      flex-wrap: wrap;
    }
    .composer-settings .attach-button {
      width: 100%;
    }
  }
  @media (max-height: 550px) and (max-width: 850px) {
    .topbar {
      min-height: 52px;
      padding-top: 5px;
      padding-bottom: 5px;
    }
    .heading p {
      display: none;
    }
    .toolbar {
      height: 40px;
    }
    .composer-hint {
      display: none;
    }
    .composer-area {
      padding-top: 4px;
      padding-bottom: max(6px, env(safe-area-inset-bottom));
    }
    .composer textarea {
      min-height: 44px;
      height: 44px;
      max-height: 80px;
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .effort-fill,
    .effort-sparkles::before,
    .effort-sparkles::after {
      animation: none !important;
    }
    *,
    *::before,
    *::after {
      animation-duration: 0.001ms !important;
      transition-duration: 0.001ms !important;
      scroll-behavior: auto !important;
    }
  }
}
@keyframes appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes effort-ultra-flow {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}
@keyframes effort-ultra-shimmer {
  0%,
  100% {
    opacity: 0.25;
    transform: translateX(-7px);
  }
  50% {
    opacity: 0.95;
    transform: translateX(9px);
  }
}

@keyframes chip-pulse {
  50% {
    opacity: 0.45;
  }
}
@keyframes thread-spin {
  to {
    transform: rotate(360deg);
  }
}

@layer components {
  .workspace-switch {
    display: flex;
    flex: 0 0 auto;
    gap: 3px;
    padding: 3px;
    border: 1px solid var(--line-soft);
    background: var(--soft);
    border-radius: 10px;
  }
  .workspace-switch button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 0;
    border-radius: 7px;
    min-height: 34px;
    padding: 0 12px;
    background: transparent;
    font-size: 12px;
    font-weight: 550;
    color: var(--muted);
  }
  .workspace-switch button[aria-current='page'] {
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 1px 3px #00000010;
  }
  .workspace-switch button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }
  .workspace-switch i {
    width: 5px;
    height: 5px;
    background: var(--subtle);
    border-radius: 50%;
  }
  .workspace-switch button[data-online='true'] i {
    background: #32835f;
  }
}
@layer responsive {
  @media (max-width: 850px) {
    .topbar {
      flex-wrap: wrap;
      gap: 6px 10px;
    }
    .workspace-switch {
      order: 0;
    }
    .topbar .connection {
      margin-left: auto;
    }
    .topbar .heading {
      order: 2;
      flex-basis: 100%;
      padding: 2px 2px 0 5px;
    }
    .workspace-switch button {
      min-height: 34px;
      padding-inline: 13px;
    }
  }
}

@layer components {
  .boot-view {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--muted);
    background: var(--bg);
  }
  .boot-view p {
    margin: 0;
    font-size: 14px;
  }
  .boot-mark {
    color: var(--text);
  }
  /* Quick loads (switching Codex/PI) never flash the loading text: the browser keeps the previous
     page until this one has content, and the cached first screen usually paints before 0.6 s. */
  .boot-view > * {
    animation: appear 0.2s ease 0.6s both;
  }
  .questions {
    width: 100%;
    max-width: var(--conversation-width, 800px);
    margin: 0 auto;
  }
  .question-card {
    margin: 16px 0 24px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    color: var(--text);
  }
  .question-eyebrow {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 16px;
  }
  .question-field {
    margin: 0 0 20px;
    padding: 0;
    border: 0;
    min-width: 0;
  }
  .question-title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.65;
    margin-bottom: 12px;
    overflow-wrap: anywhere;
  }
  .question-multiple {
    color: var(--muted);
    font-size: 12px;
    margin: 0 0 8px;
  }
  .question-choice {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin: 8px 0;
    padding: 12px;
    min-height: 44px;
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    cursor: pointer;
    background: transparent;
  }
  .question-choice.selected {
    border-color: var(--text);
    background: var(--soft);
  }
  .question-choice input {
    flex: 0 0 17px;
    width: 17px;
    height: 17px;
    min-height: 0;
    margin: 3px 0 0;
    padding: 0;
    accent-color: var(--text);
    appearance: auto;
  }
  .question-choice-copy {
    min-width: 0;
    font-size: 14px;
    line-height: 1.6;
    overflow-wrap: anywhere;
  }
  .question-choice-copy small {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-top: 3px;
  }
  .question-custom {
    width: 100%;
    min-height: 72px;
    resize: vertical;
    padding: 12px;
    margin: 4px 0;
    font-size: 16px;
  }
  .question-skip {
    min-height: 44px;
  }
  .question-skip[aria-pressed='true'] {
    color: var(--text);
    text-decoration: underline;
  }
  .question-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
  }
  .question-actions button {
    min-height: 44px;
  }
  .question-error:empty {
    display: none;
  }
  .question-error {
    font-size: 12px;
    overflow-wrap: anywhere;
  }
}
@layer responsive {
  @media (max-width: 600px) {
    .question-card {
      padding: 16px;
      border-radius: 12px;
    }
  }
}

@layer components {
  #questionNotice {
    color: var(--text);
    background: var(--soft);
  }
  #questionNotice button {
    margin-left: auto;
    flex-shrink: 0;
    min-height: 36px;
  }
}

.history-notice {
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--muted);
}
.history-notice .banner-copy {
  flex: 1 1 180px;
}
.history-notice a {
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 3px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}
.history-notice-close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  margin-left: auto;
  color: var(--muted);
}

/* Execution-record cards: terminal-style commands and coloured diffs. */
@layer components {
  .activity summary {
    gap: 8px;
  }
  .activity-icon {
    color: var(--subtle);
  }
  .activity-title {
    color: var(--text);
    font-weight: 500;
  }
  .activity-summary {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font:
      11.5px/1.4 ui-monospace,
      SFMono-Regular,
      Consolas,
      monospace;
  }
  .activity-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }
  .activity.failed {
    border-color: color-mix(in srgb, var(--danger) 40%, var(--line-soft));
  }
  .activity.failed .activity-status,
  .activity.failed .activity-icon {
    color: var(--danger);
  }
  .activity.activity-static summary {
    cursor: default;
  }
  .activity.activity-static summary > svg:first-child {
    visibility: hidden;
  }
  .activity-note {
    margin-top: 6px;
    color: var(--subtle);
    font-size: 11px;
  }
  .terminal {
    margin-top: 2px;
    overflow: hidden;
    border: 1px solid #ffffff12;
    border-radius: 8px;
    background: #16171a;
    color: #e4e4e8;
    font:
      11.5px/1.65 ui-monospace,
      SFMono-Regular,
      Consolas,
      monospace;
  }
  .terminal-command {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 9px 6px 9px 12px;
    border-bottom: 1px solid #ffffff14;
  }
  .terminal-command code {
    flex: 1;
    min-width: 0;
    max-height: 8.5em;
    overflow: auto;
    padding: 0;
    background: none;
    color: #ffffff;
    font: inherit;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
  .terminal-prompt {
    flex-shrink: 0;
    color: #7ddc9f;
    user-select: none;
  }
  .terminal .copy {
    flex-shrink: 0;
    margin: -5px 0 0;
    color: #9b9ca6;
  }
  .activity .terminal-output {
    max-height: 360px;
    margin: 0;
    padding: 9px 12px;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: #d2d3d9;
    font: inherit;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
  .terminal-more {
    display: block;
    width: 100%;
    min-height: 32px;
    padding: 6px 12px;
    border: 0;
    border-bottom: 1px solid #ffffff14;
    background: #ffffff0a;
    color: #aab3ff;
    font: inherit;
    text-align: left;
    cursor: pointer;
  }
  .terminal-empty,
  .terminal-cwd {
    padding: 7px 12px;
    color: #8b8c96;
    font-size: 11px;
    overflow-wrap: anywhere;
  }
  .terminal-cwd {
    border-top: 1px solid #ffffff10;
  }
  .diff-file {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    margin-top: 8px;
    font-size: 12px;
  }
  .diff-kind {
    flex-shrink: 0;
    padding: 1px 6px;
    border-radius: 5px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 10.5px;
  }
  .diff-kind-add,
  .diff-kind-write {
    background: var(--diff-add-bg);
    color: var(--diff-add-fg);
  }
  .diff-kind-delete {
    background: var(--diff-del-bg);
    color: var(--danger);
  }
  .diff-path {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .diff-path b {
    font-weight: 600;
  }
  .diff-dir {
    margin-left: 6px;
    color: var(--subtle);
    font-size: 11px;
  }
  .diff-counts {
    display: inline-flex;
    gap: 6px;
    flex-shrink: 0;
    font:
      11px ui-monospace,
      SFMono-Regular,
      Consolas,
      monospace;
  }
  .diff-added {
    color: var(--diff-add-fg);
  }
  .diff-removed {
    color: var(--danger);
  }
  .activity pre.diff {
    max-height: 420px;
    padding: 6px 0;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
  .diff-line {
    display: block;
    padding: 0 12px;
  }
  .diff-add {
    background: var(--diff-add-bg);
  }
  .diff-del {
    background: var(--diff-del-bg);
  }
  .diff-hunk {
    margin: 4px 0;
    background: var(--accent-soft);
    color: var(--accent);
  }
  .diff-meta {
    color: var(--subtle);
  }
}

@layer components {
  /* Login: account password or a one-time pairing code */
  .login-card[data-mode='code'] .login-password-fields,
  .login-card:not([data-mode='code']) .login-code-fields {
    display: none;
  }
  .login-card #pairCodeInput {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 19px;
    letter-spacing: 0.18em;
    text-align: center;
    text-transform: uppercase;
  }
  .login-code-hint {
    margin-top: 8px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
  }
  .login-switch {
    display: block;
    margin: 14px auto 0;
    padding: 6px 8px;
    border: 0;
    background: none;
    color: var(--accent);
    font-size: 13px;
    cursor: pointer;
  }
  .login-switch:hover {
    text-decoration: underline;
  }
  .login-switch + .login-foot {
    margin-top: 16px;
  }

  /* Account: signed-in devices */
  .devices-section {
    margin: 22px 0 6px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line-soft);
  }
  .devices-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }
  .devices-heading h3,
  .account-subtitle {
    font-size: 13px;
    font-weight: 600;
  }
  .account-subtitle {
    margin: 18px 0 12px;
  }
  .devices-add {
    gap: 6px;
    min-height: 34px;
    padding: 6px 12px;
    font-size: 12px;
  }
  .devices-status {
    margin-top: 10px;
    font-size: 12px;
  }
  .devices-status.error {
    margin-top: 10px;
  }
  .device-list {
    margin: 10px 0 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    list-style: none;
  }
  .device-list:empty {
    display: none;
  }
  .device-row {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 12px;
  }
  .device-row + .device-row {
    border-top: 1px solid var(--line-soft);
  }
  .device-glyph {
    display: grid;
    flex: none;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--soft);
    color: var(--muted);
  }
  .device-row.current .device-glyph {
    background: var(--accent-soft);
    color: var(--accent);
  }
  .device-text {
    display: grid;
    flex: 1;
    gap: 1px;
    min-width: 0;
  }
  .device-text strong,
  .device-text small {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .device-text strong {
    font-size: 13px;
    font-weight: 500;
  }
  .device-text small {
    color: var(--muted);
    font-size: 11px;
  }
  .device-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 0 6px;
    border-radius: 99px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 10px;
    font-weight: 600;
    line-height: 17px;
    vertical-align: 1px;
  }
  .device-remove,
  .devices-revoke {
    flex: none;
    min-height: 30px;
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
    cursor: pointer;
  }
  .devices-revoke {
    margin-top: 10px;
    color: var(--danger);
  }
  .device-remove.armed,
  .devices-revoke.armed {
    border-color: var(--danger);
    color: var(--danger);
    font-weight: 600;
  }

  /* Pairing dialog: the QR stays dark-on-white in both themes so cameras can read it */
  .pair-qr {
    display: grid;
    place-items: center;
    width: min(232px, 100%);
    aspect-ratio: 1;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
  }
  .pair-qr svg[role='img'] {
    display: block;
    width: 100%;
    height: 100%;
  }
  .pair-qr.ended {
    background: var(--soft);
    color: var(--subtle);
  }
  .pair-qr.paired {
    background: var(--diff-add-bg);
    color: var(--diff-add-fg);
  }
  .pair-code {
    margin-top: 14px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 26px;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-align: center;
    user-select: all;
  }
  .pair-status {
    min-height: 20px;
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    text-align: center;
  }
  .pair-status.ok {
    color: var(--diff-add-fg);
    font-weight: 600;
  }
  .pair-status.error {
    color: var(--danger);
  }
  .pair-note {
    margin-top: 14px;
    padding: 9px 11px;
    border-radius: 8px;
    background: var(--soft);
    color: var(--muted);
    font-size: 11px;
    line-height: 1.6;
  }
}