/* ============================================================================
   MCP app theme
   Loaded after vendor Bootstrap and bootstrap-theme.css.

   Responsibilities:
   - application tokens and compatibility aliases
   - layout primitives
   - MCP shell/editor/settings/server layouts
   - app-* components that are not native Bootstrap components

   Bootstrap-native styling belongs in bootstrap-theme.css.
   ========================================================================== */

:root,
[data-bs-theme="dark"] {
  /* ------------------------------------------------------------------------
     Spacing scale
     ------------------------------------------------------------------------ */

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* ------------------------------------------------------------------------
     App aliases over Bootstrap tokens
     ------------------------------------------------------------------------ */

  --radius-sm: var(--bs-border-radius-sm);
  --radius-md: var(--bs-border-radius);
  --radius-lg: var(--bs-border-radius-lg);

  --font-body: var(--bs-body-font-family);
  --font-display: var(--bs-body-font-family);
  --font-mono: var(--bs-font-monospace);

  --type-label-size: 0.75rem;
  --type-label-spacing: 0.08em;
  --type-support-size: 0.9375rem;

  --bg-canvas: var(--bs-body-bg);
  --bg-app: #161920;
  --bg-panel: #1b1f28;
  --bg-panel-2: var(--bs-tertiary-bg);
  --bg-panel-3: #272f3d;
  --bg-hover: rgba(var(--bs-primary-rgb), 0.08);
  --bg-active: rgba(var(--bs-primary-rgb), 0.14);

  --border-subtle: var(--bs-border-color);
  --border-strong: rgba(191, 205, 255, 0.16);
  --border-accent: rgba(var(--bs-primary-rgb), 0.34);

  --text-primary: var(--bs-body-color);
  --text-secondary: var(--bs-secondary-color);
  --text-muted: var(--bs-tertiary-color);
  --text-inverse: #0d1117;

  --accent: var(--bs-primary);
  --accent-hover: var(--bs-link-hover-color);
  --accent-2: var(--bs-primary);
  --warning: var(--bs-warning);
  --danger: var(--bs-danger);
  --success: var(--bs-success);
  --overlay: rgba(7, 9, 12, 0.72);

  --shadow-panel: var(--bs-box-shadow);

  /* ------------------------------------------------------------------------
     Product layout dimensions
     ------------------------------------------------------------------------ */

  --topbar-height: 72px;
  --toolbar-height: 45px;
  --app-rail-width: 78px;
  --layout-sidebar-width: 20rem;
  --layout-gap: 16px;
  --app-v2-library-width: 264px;
  --app-v2-inspector-width: 300px;
  --app-content-column-header-height: 48px;

  /* ------------------------------------------------------------------------
     Compatibility aliases for existing React/Django components
     ------------------------------------------------------------------------ */

  --sidebar-width: var(--app-rail-width);

  --app-bg: var(--bg-canvas);
  --app-surface: var(--bg-panel);
  --app-surface-2: var(--bg-panel-2);
  --app-border: var(--border-subtle);
  --app-text: var(--text-primary);
  --app-text-muted: var(--text-secondary);
  --app-accent: var(--accent);
  --app-accent-hover: var(--accent-hover);
  --app-pad-bg: #070a10;

  --bg-primary: var(--app-bg);
  --bg-secondary: var(--app-surface);
  --bg-tertiary: var(--app-surface-2);
  --border-color: var(--app-border);
  --accent-color: var(--app-accent);
  --bg-sidebar: var(--app-bg);
  --bg-page: var(--app-surface);
  --bg-pad: var(--app-pad-bg);
  --bg-sidebar-hover: #1a2130;
  --bg-topbar: var(--app-bg);
  --hover-bg: #222a38;
  --accent-highlight: var(--accent-hover);
  --editor-bg: var(--app-surface);
  --toolbar-bg: var(--app-surface);
  --preview-bg: var(--app-surface);
  --code-bg: var(--app-surface);
  --text-color: var(--app-text);
  --secondary-text: var(--app-text-muted);
}

/* ============================================================================
   App utilities and layout primitives
   ========================================================================== */

.mono {
  font-family: var(--font-mono);
}

/* ============================================================================
   React mount compatibility
   CSS is provided by Django static files. React entrypoints should not import
   a separate index.css design system.
   ========================================================================== */

#root,
#main {
  min-height: 100%;
  color: var(--text-primary);
}

body.app-fullscreen {
  overflow: hidden;
}

button {
  -webkit-font-smoothing: inherit;
}

/* App-level scrollbars. Kept here because these are product UI surfaces, not
   Bootstrap-native component styles. */

* {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-panel-3) var(--bg-panel);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-panel);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-panel-3);
  border-radius: var(--bs-border-radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(191, 205, 255, 0.24);
}

.app-stack {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: var(--stack-space, var(--space-3));
}

.app-stack > * {
  margin: 0;
}

.app-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: var(--cluster-space, var(--space-2));
}

.app-cluster-end {
  justify-content: flex-end;
}

.app-sidebar-layout {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: var(--sidebar-space, var(--space-4));
}

.app-sidebar-layout > :first-child {
  flex-basis: var(--layout-sidebar-width);
  flex-grow: 1;
}

.app-sidebar-layout > :last-child {
  flex-basis: 0;
  flex-grow: 999;
  min-inline-size: var(--sidebar-content-min, 50%);
}

.app-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: var(--switcher-space, var(--space-3));
}

.app-switcher > * {
  flex-grow: 1;
  flex-basis: calc((var(--switcher-target, 18rem) - 100%) * 999);
}

/* ============================================================================
   Generic app rows and labels
   ========================================================================== */

.app-item-row {
  display: grid;
  grid-template-columns: 16px 16px minmax(0, 1fr) var(--item-row-actions-width, 84px);
  align-items: center;
  gap: var(--item-row-gap, 0.65rem);
  height: var(--item-row-min-height, 38px);
  padding: 0 var(--item-row-pad-x, var(--space-3));
  background: transparent;
  color: var(--text-primary);
  box-shadow: inset 1px 0 0 transparent;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.app-item-row:hover {
  background: rgba(255, 255, 255, 0.025);
}

.app-item-row.is-active {
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 1px 0 0 rgba(var(--bs-primary-rgb), 0.34);
}

.app-item-row.is-drop-target {
  background: rgba(var(--bs-primary-rgb), 0.08);
}

.app-item-row-label {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.92rem;
}

.app-item-row-label.is-active {
  font-weight: 500;
}

.app-item-row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  gap: 0.15rem;
  flex: 0 0 auto;
  width: var(--item-row-actions-width, 92px);
  min-height: 24px;
  opacity: 0;
  transition: opacity 0.16s ease;
}

.app-item-row:hover .app-item-row-actions,
.app-item-row:focus-within .app-item-row-actions {
  opacity: 1;
}

.app-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 28px;
  padding: 0 var(--space-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--bs-border-radius-pill);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

/* ============================================================================
   Main app shell
   ========================================================================== */

.app-shell-v2 {
  --text-primary: #aeb8ca;
  --text-secondary: #8f9ab0;
  --text-muted: #667084;
  display: flex;
  height: 100vh;
  width: 100%;
  min-width: 100%;
  background: var(--bg-canvas);
  color: var(--text-primary);
  overflow: hidden;
}

.app-shell-v2 .app-shell-sidebar {
  width: var(--app-rail-width);
  height: 100%;
  border-right: 1px solid var(--border-subtle);
  background: transparent;
}

.app-shell-v2 .app-shell-main {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-panel);
}

.app-shell-v2 .app-shell-topbar {
  flex: 0 0 auto;
  min-height: 60px;
  border-bottom: 1px solid var(--border-subtle);
}

.app-shell-v2 .app-shell-content {
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.app-shell-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 28px;
  padding: 0 var(--space-4);
  border-top: 1px solid var(--border-subtle);
  background: rgba(8, 10, 14, 0.42);
  color: var(--text-muted);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================================
   Server-side Django shell helpers
   ========================================================================== */

.app-server-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-server-header {
  flex: 0 0 auto;
  background: rgba(8, 10, 14, 0.42);
}

.app-server-main {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.app-server-main-inner {
  width: min(100%, 1120px);
  min-height: 100%;
  margin: 0 auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.app-server-main-inner.is-narrow {
  width: min(100%, 760px);
}

.app-server-surface {
  border: none;
  border-radius: 0;
  background:
    linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.02), rgba(255, 255, 255, 0.006)),
    rgba(32, 38, 50, 0.42);
}

.app-server-surface-pad {
  padding: var(--space-4);
}

.app-server-page-intro {
  max-width: 44rem;
  --stack-space: var(--space-2);
}

.app-server-kicker {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-server-title {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.6rem);
  line-height: 1.05;
}

.app-server-copy {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

.app-server-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.app-server-token-value {
  color: var(--accent);
}

/* ============================================================================
   Editor layout
   ========================================================================== */

.app-shell-v2 .app-page-layout,
.app-shell-v2 .app-editor-layout {
  flex: 1 1 auto;
  min-height: 0;
}

.app-editor-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.app-editor-layout .app-editor-shell {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  overflow: hidden;
}

.app-editor-layout .app-editor-library {
  flex: 0 0 var(--app-v2-library-width);
  min-width: 0;
  height: 100%;
  overflow: hidden;
  border-right: 1px solid rgba(191, 205, 255, 0.12);
  background: var(--bg-panel);
}

.app-editor-layout .app-editor-canvas {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  border-right: 1px solid rgba(191, 205, 255, 0.12);
  background: var(--bg-panel);
}

.app-editor-layout .app-editor-inspector {
  flex: 0 0 var(--app-v2-inspector-width);
  min-width: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg-panel);
}

.app-editor-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: var(--app-content-column-header-height);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  box-sizing: border-box;
}

.app-editor-layout .app-editor-canvas-header {
  box-shadow: inset 1px 0 0 rgba(191, 205, 255, 0.14);
}

.app-shell-v2 .app-editor-panel-heading,
.app-server-shell .app-editor-panel-heading {
  display: flex;
  align-items: center;
  min-width: 0;
  flex: 1 1 auto;
}

.app-shell-v2 .app-editor-panel-title,
.app-server-shell .app-editor-panel-title {
  margin: 0;
  display: block;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  font-weight: 500;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-shell-v2 .app-editor-canvas-heading {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}

.app-shell-v2 .app-editor-canvas-heading-label,
.app-shell-v2 .app-editor-canvas-heading-separator {
  flex: 0 0 auto;
}

.app-shell-v2 .app-editor-canvas-heading-separator {
  color: var(--text-muted);
}

.app-shell-v2 .app-editor-canvas-heading-path {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none;
}

.app-editor-panel-meta {
  min-width: 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  letter-spacing: var(--type-label-spacing);
}

.app-editor-panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem;
  flex: 0 0 auto;
}

.app-editor-panel-btn,
.app-editor-mode-btn {
  width: 34px;
  min-width: 34px;
  min-height: 34px;
  height: 34px;
  padding: 0;
}

.app-editor-panel-btn.is-active {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border-color: rgba(var(--bs-primary-rgb), 0.2);
}

.app-editor-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-editor-breadcrumb-item {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-editor-breadcrumb-current {
  color: var(--text-primary);
}

.app-editor-breadcrumb-separator {
  color: var(--text-muted);
}

/* ============================================================================
   Page and settings layouts
   ========================================================================== */

.app-page-layout,
.app-content-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.app-settings-layout {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-panel);
}

.app-settings-nav {
  flex: 0 0 220px;
  min-width: 0;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-panel);
}

.app-settings-nav-inner,
.app-settings-nav-list {
  --stack-space: 0;
}

.app-settings-nav-inner {
  height: 100%;
  padding: 0;
}

.app-settings-nav-link {
  display: block;
  padding: var(--space-3);
  border-left: 1px solid transparent;
  border-bottom: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.app-settings-nav-link:hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

.app-settings-nav-link.is-active {
  background: rgba(255, 255, 255, 0.03);
  border-left-color: rgba(var(--bs-primary-rgb), 0.34);
  color: var(--text-primary);
}

.app-settings-nav-link-title {
  display: block;
  font-size: var(--type-label-size);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-settings-content {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  flex-wrap: nowrap;
  overflow: hidden;
}

.app-settings-main {
  display: flex;
  flex: 1 1 0;
  width: 0;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
}

.app-settings-main-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.app-settings-page-content {
  width: 100%;
  padding: var(--space-4);
  --stack-space: var(--space-4);
}

.app-settings-context {
  flex: 0 0 280px;
  width: 280px;
  min-width: 0;
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
}

.app-shell-v2 .app-settings-context {
  min-width: 280px;
  min-height: 0;
}

.app-settings-context-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: var(--space-4);
}

.app-settings-context-copy {
  --stack-space: var(--space-3);
}

.app-settings-context-list {
  margin: 0;
  padding-left: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.app-settings-context-list li + li {
  margin-top: var(--space-2);
}

.app-settings-context-note,
.app-settings-empty-note {
  margin: 0;
  line-height: 1.55;
}

.app-settings-context-note {
  color: var(--text-secondary);
}

.app-settings-empty-note {
  color: var(--text-muted);
}

.app-page-header {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.app-page-title {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
  line-height: 1.05;
}

.app-page-description {
  margin: 0;
  max-width: 42rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.app-page-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.app-page-content {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-6);
  --stack-space: var(--space-5);
}

.app-page-grid {
  display: grid;
  gap: var(--space-5);
}

.app-page-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* ============================================================================
   App sections and settings rows
   ========================================================================== */

.app-surface-panel,
.app-surface-panel-accent {
  border: none;
  background: transparent;
  box-shadow: none;
}

.app-surface-panel-pad {
  padding: var(--space-4) 0;
}

.app-section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.app-section-header h2,
.app-section-header h3 {
  margin: 0;
}

.app-section-heading {
  min-width: 0;
}

.app-shell-v2 .app-settings-layout .app-section-header h2,
.app-shell-v2 .app-settings-layout .app-section-header h3 {
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0;
}

.app-section-meta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
}

.app-info-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 1px solid rgba(191, 205, 255, 0.1);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.75rem;
  line-height: 1;
  border-radius: 0;
}

.app-section-list {
  --stack-space: 0;
}

.app-section-list > * + * {
  border-top: 1px solid var(--border-subtle);
}

.app-section-row {
  padding: var(--space-3) 0;
}

.app-settings-row-copy {
  min-width: 0;
}

.app-settings-row-title {
  margin: 0;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 500;
}

.app-settings-row-description {
  margin: var(--space-1) 0 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.app-settings-row-meta {
  margin: var(--space-2) 0 0;
  color: var(--text-muted);
  font-size: var(--type-label-size);
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-settings-row-actions {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  gap: var(--space-2);
  flex: 0 0 auto;
}

.app-settings-choice {
  flex: 0 0 240px;
  min-width: 240px;
}

/* ============================================================================
   App-specific feedback and empty states
   ========================================================================== */

.app-page-message-stack {
  --stack-space: var(--space-2);
}

.app-page-message {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.02);
}

.app-page-message.is-success {
  background: rgba(var(--bs-success-rgb), 0.1);
  border-color: rgba(var(--bs-success-rgb), 0.24);
  color: #d8ffe6;
}

.app-page-message.is-error {
  background: rgba(var(--bs-danger-rgb), 0.1);
  border-color: rgba(var(--bs-danger-rgb), 0.24);
  color: #ffd3db;
}

.marketing-hero,
.marketing-page,
.marketing-section,
.marketing-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent), var(--bg-panel);
}

.marketing-hero h1,
.marketing-page h1 {
  margin: 0;
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.app-home-hero {
  background:
    radial-gradient(circle at top left, rgba(var(--bs-primary-rgb), 0.08), transparent 34%),
    linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.025), rgba(255, 255, 255, 0.006)),
    rgba(32, 38, 50, 0.42);
  align-items: center;
  text-align: center;
}

.app-home-hero-copy {
  max-width: 50rem;
  margin: 0 auto;
  align-items: center;
}

.app-home-hero-title {
  font-size: clamp(2.6rem, 5vw, 4.9rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.app-home-hero-subtitle {
  max-width: 42rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

.app-home-hero-actions {
  justify-content: center;
}

.app-home-proof {
  justify-content: center;
}

.app-home-proof .app-kicker {
  min-height: 32px;
  background: rgba(255, 255, 255, 0.035);
}

.app-home-shot {
  position: relative;
  width: 100%;
  padding-top: 3.2rem;
}

.app-home-shot-badge {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 2;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.55rem 1.1rem;
  border: 1px solid rgba(191, 205, 255, 0.16);
  border-radius: var(--bs-border-radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  white-space: nowrap;
}

.app-home-shot-frame {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: 0.75rem;
  border: 1px solid var(--border-strong);
  background: rgba(10, 13, 18, 0.58);
  box-shadow: var(--shadow-panel);
}

.app-home-shot-image {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border-subtle);
}

.app-home-shot-caption {
  max-width: 40rem;
  margin: var(--space-4) auto 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

.app-home-section-copy {
  max-width: 48rem;
}

.app-home-steps {
  display: grid;
  gap: var(--space-3);
}

.app-home-step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border-subtle);
}

.app-home-step:last-child {
  border-bottom: 1px solid var(--border-subtle);
}

.app-home-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-secondary);
}

.app-home-list li + li {
  margin-top: var(--space-2);
}

.app-home-final {
  align-items: center;
  text-align: center;
}

@media (max-width: 720px) {
  .app-home-shot {
    padding-top: 4.5rem;
  }

  .app-home-shot-badge {
    max-width: calc(100% - 2rem);
    white-space: normal;
    text-align: center;
  }

  .app-home-step {
    grid-template-columns: 1fr;
  }
}

.marketing-hero p,
.marketing-page p,
.marketing-card p,
.marketing-section {
  color: var(--text-secondary);
  line-height: 1.7;
}

.marketing-section-stack {
  --stack-space: var(--space-4);
}

.marketing-page-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.marketing-card h2,
.marketing-section h2,
.marketing-section h3 {
  margin: 0;
  color: var(--text-primary);
}

.marketing-card a {
  color: inherit;
  text-decoration: none;
}

.marketing-card a:hover {
  text-decoration: underline;
}

.marketing-richtext > :first-child,
.marketing-section > :first-child {
  margin-top: 0;
}

.marketing-richtext > :last-child,
.marketing-section > :last-child {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .marketing-page-grid {
    grid-template-columns: 1fr;
  }
}

.panel-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: var(--space-7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.035), transparent),
    var(--bg-panel);
  box-shadow: var(--shadow-panel);
}

.panel-empty-inner {
  max-width: 480px;
}

.panel-empty h2 {
  margin: 0 0 var(--space-3);
  font-size: 32px;
}

.panel-empty p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================================
   App modal wrappers
   Bootstrap-native modal styles live in bootstrap-theme.css.
   ========================================================================== */

.app-modal-dialog {
  max-width: 680px;
}

.app-modal {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.035), rgba(255, 255, 255, 0.01)),
    var(--bg-panel-2);
  color: var(--text-primary);
  box-shadow: var(--bs-box-shadow-lg);
  overflow: hidden;
}

.app-modal-header,
.app-modal-footer {
  border-color: var(--border-subtle);
  background: rgba(255, 255, 255, 0.015);
  padding: var(--space-4) var(--space-5);
}

.app-modal-body {
  padding: var(--space-5);
}

.app-modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ============================================================================
   App forms
   Native Bootstrap .form-* styles live in bootstrap-theme.css.
   Keep these classes only for React components that use app-form-*.
   ========================================================================== */

.app-form-group {
  margin-bottom: var(--space-4);
}

.app-form-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
}

.app-form-control {
  min-height: 46px;
  padding: 0.78rem 0.95rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: rgba(10, 13, 18, 0.76);
  color: var(--text-primary);
  box-shadow: none;
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.app-form-control::placeholder {
  color: var(--text-muted);
}

.app-form-control:hover {
  border-color: var(--border-strong);
}

.app-form-control:focus {
  border-color: var(--border-accent);
  background: rgba(10, 13, 18, 0.9);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.12);
}

.app-form-control:disabled {
  opacity: 0.55;
}

.app-form-control-textarea {
  min-height: 132px;
  resize: vertical;
}

.app-form-help {
  display: block;
  margin-top: var(--space-2);
  color: var(--text-muted);
  font-size: var(--type-support-size);
}

/* ============================================================================
   App buttons
   Native Bootstrap .btn styles live in bootstrap-theme.css.
   Keep app-btn-* for React components that use app button variants.
   ========================================================================== */

.app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--type-label-size);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--type-label-spacing);
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn.app-btn {
  border-radius: var(--radius-md);
}

.app-btn:hover {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.app-btn:disabled,
.app-btn.disabled {
  opacity: 0.5;
  transform: none;
}

.app-btn-primary {
  border-color: rgba(var(--bs-primary-rgb), 0.34);
  background: linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.18), rgba(var(--bs-primary-rgb), 0.07));
  color: #dfe8ff;
}

.app-btn-primary:hover {
  border-color: rgba(var(--bs-primary-rgb), 0.46);
  background: linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.24), rgba(var(--bs-primary-rgb), 0.1));
  color: #f4f8ff;
}

.app-btn-secondary {
  color: var(--text-secondary);
}

.app-btn-quiet {
  border-color: var(--border-subtle);
  background: transparent;
  color: var(--text-muted);
}

.app-btn-quiet:hover,
.app-btn-quiet:focus-visible {
  border-color: rgba(191, 205, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  transform: none;
}

.app-btn-status {
  border-color: var(--border-subtle);
  background: rgba(255, 255, 255, 0.015);
  color: var(--text-muted);
  transform: none;
  pointer-events: none;
}

.app-btn-status:hover {
  border-color: var(--border-subtle);
  background: rgba(255, 255, 255, 0.015);
  color: var(--text-muted);
  transform: none;
}

.btn.app-btn.app-btn-icon,
.app-btn-icon {
  width: 34px;
  min-width: 34px;
  min-height: 34px;
  height: 34px;
  padding: 0;
}

.btn.app-btn.app-btn-icon-sm,
.app-btn-icon-sm {
  width: 24px;
  min-width: 24px;
  min-height: 24px;
  height: 24px;
  padding: 0;
}

.app-square-icon-btn,
.app-square-icon-btn:hover,
.app-square-icon-btn:focus-visible,
.app-square-icon-btn.is-active,
.app-square-icon-btn.active {
  box-shadow: none !important;
}

.app-btn-accent {
  border-color: rgba(var(--bs-primary-rgb), 0.24);
  background: linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.14), rgba(var(--bs-primary-rgb), 0.05));
  color: #dfe8ff;
}

.app-btn-accent:hover {
  border-color: rgba(var(--bs-primary-rgb), 0.4);
  background: linear-gradient(180deg, rgba(var(--bs-primary-rgb), 0.2), rgba(var(--bs-primary-rgb), 0.08));
  color: #f4f8ff;
}

.app-btn-danger {
  border-color: rgba(var(--bs-danger-rgb), 0.32);
  background: linear-gradient(180deg, rgba(var(--bs-danger-rgb), 0.18), rgba(var(--bs-danger-rgb), 0.08));
  color: #ffb6c1;
}

.app-btn-danger:hover {
  border-color: rgba(var(--bs-danger-rgb), 0.46);
  background: linear-gradient(180deg, rgba(var(--bs-danger-rgb), 0.22), rgba(var(--bs-danger-rgb), 0.12));
  color: #ffd6dd;
}

/* ============================================================================
   App binary choice
   ========================================================================== */

.app-binary-choice {
  display: inline-flex;
  align-items: stretch;
  width: 100%;
  min-height: 28px;
  border: 1px solid var(--border-subtle);
  border-radius: 0;
  overflow: hidden;
}

.app-binary-choice-option {
  display: inline-flex;
  flex: 1 1 50%;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 0.28rem 0.42rem;
  border: 0;
  border-right: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1;
  border-radius: 0;
  box-shadow: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.app-binary-choice > .app-binary-choice-option.btn {
  margin-left: 0;
}

.app-binary-choice-option:last-child {
  border-right: none;
}

.app-binary-choice-option:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.app-binary-choice-option:focus-visible,
.app-binary-choice-option:active {
  box-shadow: none;
}

.app-binary-choice-option.is-active {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.app-binary-choice-option:disabled {
  opacity: 0.45;
}

/* ============================================================================
   Responsive layouts
   ========================================================================== */

@media (max-width: 980px) {
  .app-editor-layout .app-editor-shell {
    flex-direction: column;
  }

  .app-editor-layout .app-editor-library {
    flex: 0 0 auto;
    height: 320px;
  }

  .app-editor-layout .app-editor-canvas {
    min-height: 420px;
  }

  .app-editor-layout .app-editor-inspector {
    flex: 0 0 auto;
    border-left: none;
    border-top: 1px solid var(--border-subtle);
  }

  .app-page-header,
  .app-page-content {
    padding: var(--space-4);
  }

  .app-page-grid-2 {
    grid-template-columns: 1fr;
  }

  .app-editor-canvas-header {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 760px) {
  .app-settings-layout,
  .app-settings-content {
    flex-direction: column;
  }

  .app-settings-nav {
    flex: 0 0 auto;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .app-settings-context,
  .app-shell-v2 .app-settings-context {
    flex: 0 0 auto;
    width: 100%;
    min-width: 0;
    border-left: none;
    border-top: 1px solid var(--border-subtle);
  }

  .app-settings-choice {
    flex-basis: 100%;
    min-width: 0;
  }
}