.mobile-workspace-nav {
  display: none;
}

.workspace-restore-button[hidden] {
  display: none !important;
}

@media (min-width: 761px) {
  .mobile-workspace-nav.desktop-maximized-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    flex: 0 0 auto;
    border-bottom: 1px solid #cbd5e1;
    background: #f8fafc;
  }

  .mobile-workspace-nav.desktop-maximized-nav button {
    min-width: 0;
    height: 2.4rem;
    border: 0;
    border-right: 1px solid #e2e8f0;
    background: transparent;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.34rem;
    font: 700 0.72rem/1 "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
    letter-spacing: 0.02em;
  }

  .mobile-workspace-nav.desktop-maximized-nav button[data-mobile-surface="output"] {
    border-right: 0;
  }

  .mobile-workspace-nav.desktop-maximized-nav .workspace-nav-separator {
    display: none;
    align-self: center;
    height: 1.25rem;
    background: #e2e8f0;
  }

  .mobile-workspace-nav.desktop-maximized-nav.has-restore-action {
    grid-template-columns: repeat(4, minmax(0, 1fr)) 1px 2.4rem;
  }

  .mobile-workspace-nav.desktop-maximized-nav.has-restore-action .workspace-nav-separator {
    display: block;
  }

  .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button {
    position: relative;
    width: 2.4rem;
    height: 2.4rem;
    border: 0;
    background: transparent;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button:hover,
  .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button:focus-visible {
    color: #1e293b;
  }

  .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button .app-icon {
    width: 0.95rem;
    height: 0.95rem;
  }

  .mobile-workspace-nav.desktop-maximized-nav button .app-icon {
    width: 0.92rem;
    height: 0.92rem;
  }

  .mobile-workspace-nav.desktop-maximized-nav button.active {
    background: rgba(37, 99, 235, 0.08);
    color: #2563eb;
    box-shadow: inset 0 -2px 0 #2563eb;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav {
    border-color: #3a404c;
    background: #1f2229;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav button {
    border-color: #3a404c;
    color: #9aa5b5;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav .workspace-nav-separator {
    background: #3a404c;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button {
    color: #9aa5b5;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button:hover,
  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav .workspace-restore-button:focus-visible {
    color: #d7e4f5;
  }

  :root[data-theme="dark"] .mobile-workspace-nav.desktop-maximized-nav button.active {
    background: #30384a;
    color: #d7e4f5;
    box-shadow: inset 0 -2px 0 #7aa2d6;
  }
}

.mobile-gallery-button {
  display: none;
}

@media (max-width: 900px) {
  body {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
  }

  .studio-page {
    height: 100vh;
    height: 100dvh;
    min-height: 0;
  }

  .studio-page .toolbar {
    align-items: center;
    flex-wrap: nowrap;
    padding: 0.55rem 0.75rem;
  }

  .studio-page .toolbar-brand {
    width: auto;
    min-width: 0;
    flex: 0 1 auto;
  }

  .studio-page .toolbar-actions {
    width: auto;
    min-width: 0;
    flex: 1 1 auto;
    justify-content: flex-end;
  }

  .desktop-project-action {
    display: none;
  }

  .toolbar-project-actions .mobile-project-action {
    display: inline-flex;
  }

  .studio-workspace {
    grid-template-columns: 2.35rem var(--explorer-width, 12rem) 3px minmax(0, 1fr);
    grid-template-rows: var(--editors-height, 38%) 3px minmax(0, 1fr);
  }

  .studio-workspace.explorer-hidden {
    grid-template-columns: 2.35rem 0 0 minmax(0, 1fr);
  }

  .studio-page .activity-rail {
    width: auto;
    min-height: 0;
    flex-direction: column;
    justify-content: flex-start;
    border-width: 0 1px 0 0;
  }

  .semantic-outline {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    width: auto;
    max-height: none;
    border-bottom: 0;
    border-left: 1px solid #cbd5e1;
  }

  .semantic-outline-resizer {
    display: block;
  }

  .studio-page .statusbar {
    align-items: center;
    flex-direction: row;
    gap: 1rem;
    padding: 0.18rem 0.75rem;
  }

  .studio-page .statusbar-right {
    width: auto;
    min-width: 0;
    justify-content: flex-end;
  }

  .studio-page .status-meta {
    width: auto;
    justify-content: flex-end;
    gap: 0.75rem;
    overflow: hidden;
  }

  .examples-dialog-panel {
    width: min(64rem, calc(100vw - 2.35rem));
  }

  .examples-dialog-body {
    grid-template-columns: minmax(12rem, 15rem) minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .examples-dialog-panel {
    width: 100vw;
  }

  .examples-dialog-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .examples-list {
    max-height: 11rem;
    border-right: 0;
    border-bottom-width: 1px;
    border-bottom-style: solid;
  }
}

@media (max-width: 760px) {
  .studio-page .toolbar {
    display: flex;
    min-height: 3.25rem;
    gap: 0.4rem;
    padding: 0.45rem 0.65rem;
  }

  .studio-page .toolbar-brand .subtitle,
  .studio-page .current-example-chip,
  .studio-page .toolbar-divider {
    display: none;
  }

  .studio-page .toolbar-brand .title {
    font-size: 1rem;
  }

  .studio-page .toolbar-project-actions {
    flex: 1 1 auto;
    justify-content: flex-end;
    min-width: 0;
    gap: 0.22rem;
  }

  .studio-page .toolbar-project-action {
    flex: 0 1 auto;
    justify-content: center;
    padding: 0 0.38rem;
    font-size: 0.7rem;
  }

  .studio-page .studio-ai-button {
    width: 2rem;
    padding: 0;
  }

  .studio-page .studio-ai-button span:last-child {
    display: none;
  }

  .studio-page .studio-run {
    height: 2rem;
    padding: 0 0.48rem;
  }

  .mobile-workspace-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    flex: 0 0 auto;
    border-bottom: 1px solid #cbd5e1;
    background: #f8fafc;
  }

  .mobile-workspace-nav button {
    min-width: 0;
    height: 2.65rem;
    border: 0;
    border-right: 1px solid #e2e8f0;
    background: transparent;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    font: 700 0.7rem/1 "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
    letter-spacing: 0.02em;
  }

  .mobile-workspace-nav button[data-mobile-surface="output"] {
    border-right: 0;
  }

  .mobile-workspace-nav button .app-icon {
    width: 0.9rem;
    height: 0.9rem;
  }

  .mobile-workspace-nav button.active {
    background: rgba(37, 99, 235, 0.08);
    color: #2563eb;
    box-shadow: inset 0 -2px 0 #2563eb;
  }

  .studio-workspace {
    position: relative;
    display: block;
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
  }

  .studio-page .activity-rail,
  .studio-explorer-splitter,
  .studio-editor-splitter,
  .studio-output-splitter {
    display: none !important;
  }

  .spec-explorer,
  .studio-main {
    position: absolute !important;
    inset: 0;
    min-width: 0;
    min-height: 0;
  }

  .spec-explorer {
    display: none !important;
    border-right: 0;
  }

  .studio-main {
    display: block !important;
    grid-column: auto !important;
    grid-row: auto !important;
  }

  .studio-editors,
  .studio-output {
    position: absolute !important;
    inset: 0;
    min-height: 0;
  }

  .studio-editors {
    display: none !important;
    grid-template-columns: minmax(0, 1fr) !important;
    border-bottom: 0;
  }

  .studio-output {
    display: none !important;
  }

  .studio-workspace[data-mobile-surface="explorer"] .spec-explorer {
    display: flex !important;
  }

  .studio-workspace[data-mobile-surface="explorer"] .studio-main {
    display: none !important;
  }

  .studio-workspace[data-mobile-surface="types"] .studio-editors,
  .studio-workspace[data-mobile-surface="input"] .studio-editors {
    display: block !important;
  }

  .studio-workspace[data-mobile-surface="types"] #types-panel,
  .studio-workspace[data-mobile-surface="input"] #input-panel {
    display: flex !important;
    position: absolute;
    inset: 0;
    grid-column: auto !important;
  }

  .studio-workspace[data-mobile-surface="types"] #input-panel,
  .studio-workspace[data-mobile-surface="input"] #types-panel {
    display: none !important;
  }

  .studio-workspace[data-mobile-surface="output"] .studio-editors {
    display: none !important;
  }

  .studio-workspace[data-mobile-surface="output"] .studio-output {
    display: flex !important;
  }

  .studio-editor-panel .studio-panel-actions > :not(.studio-ai-action),
  .studio-output .semantic-outline {
    display: none !important;
  }

  .studio-output .output-toolbar {
    display: flex !important;
    margin-left: auto;
  }

  .studio-output .output-toolbar > :not(.view-actions),
  .studio-output .output-toolbar .view-actions:not(.active),
  .studio-output .output-toolbar:not(:has(.view-actions.active)) {
    display: none !important;
  }

  .studio-output .output-toolbar .view-actions.active {
    display: flex !important;
  }

  .studio-output .output-title-group {
    width: 100%;
    gap: 0.55rem;
  }

  .studio-output .view-switch {
    flex: 1 1 auto;
    min-width: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .studio-output .view-button {
    min-width: 0;
    justify-content: center;
    padding: 0 0.32rem;
  }

  .studio-output .view-button .app-icon {
    display: none;
  }

  .studio-output .output-header {
    gap: 0;
    padding: 0.42rem 0.6rem;
  }

  .studio-output .output-body,
  .studio-output .result-area {
    min-height: 0;
  }

  /* Touch interaction expands semantic nodes, so the hover-only Visual tooltip is redundant. */
  .studio-output .interactive-view .semantic-path-tooltip {
    display: none !important;
  }

  .studio-page .statusbar {
    min-height: 1.45rem;
    padding: 0.12rem 0.55rem;
  }

  .studio-page .status-meta,
  .studio-page .statusbar-right {
    display: none;
  }

  /* These are working surfaces on a phone, not short confirmation prompts. */
  .spec-dialog-panel:has(.new-project-form),
  .spec-dialog-panel:has(.refine-diff-body),
  .ai-dialog-panel {
    width: 100vw !important;
    height: 100vh;
    height: 100dvh;
    max-height: none !important;
    border: 0;
    border-radius: 0;
  }

  .spec-dialog-panel:has(.refine-diff-body) .spec-dialog-body {
    padding: 0.65rem;
  }

  .refine-diff-body {
    min-width: 0;
  }

  .refine-diff-pane {
    max-height: none;
  }

  .ai-chat-controls {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .ai-quick-actions {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.1rem;
  }

  .ai-quick-actions button {
    flex: 0 0 auto;
  }

  .ai-chat-composer textarea {
    min-height: 3.5rem;
  }

  :root[data-theme="dark"] .mobile-workspace-nav {
    border-color: #3a404c;
    background: #1f2229;
  }

  :root[data-theme="dark"] .mobile-workspace-nav button {
    border-color: #3a404c;
    color: #9aa5b5;
  }

  :root[data-theme="dark"] .mobile-workspace-nav button.active {
    background: #30384a;
    color: #d7e4f5;
    box-shadow: inset 0 -2px 0 #7aa2d6;
  }
}

@media (max-width: 360px) {
  .studio-page .toolbar-project-action {
    width: 2rem;
    padding: 0;
  }

  .studio-page .toolbar-project-action > span:last-child,
  .studio-page .project-open-trigger > span:nth-child(2) {
    display: none;
  }
}

@media (max-width: 430px) {
  .studio-page .toolbar-brand .title {
    display: none;
  }
}