:root {
  color-scheme: light;
  --bg: oklch(98.5% 0.005 220);
  --panel: #ffffff;
  --ink: oklch(15% 0.03 240);
  --muted: oklch(50% 0.02 240);
  --line: oklch(91% 0.01 220);
  --tree: oklch(97.5% 0.005 220);
  --tree-2: oklch(94% 0.02 200);
  --tree-ink: oklch(15% 0.03 240);
  --accent: oklch(30% 0.08 240);
  --accent-2: oklch(65% 0.15 230);
  --ocean: oklch(65% 0.15 185);
  --success: oklch(62% 0.17 155);
  --warning: oklch(78% 0.14 80);
  --danger: oklch(55% 0.22 25);
  --header-bg: rgba(255, 255, 255, 0.92);
  --input-bg: #ffffff;
  --hover-bg: var(--tree-2);
  --tree-width: 320px;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 18px 48px rgba(15, 23, 42, 0.14);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(240px, var(--tree-width)) minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
  transition: grid-template-columns 160ms ease;
}

.app-shell.tree-is-collapsed {
  grid-template-columns: 0 minmax(0, 1fr);
}

.site-header {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0;
  min-height: calc(108px - 4mm);
  padding: 10px 28px 2.5mm;
  position: relative;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.tree-panel {
  position: relative;
  display: flex;
  z-index: 20;
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  background: var(--tree);
  color: var(--tree-ink);
  border-right: 1px solid var(--line);
  overflow: hidden;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.app-shell.tree-is-collapsed .tree-panel {
  pointer-events: none;
  transform: translateX(-100%);
}

.app-shell.tree-is-peeking .tree-panel,
.app-shell:not(.tree-is-collapsed) .tree-panel {
  pointer-events: auto;
  transform: translateX(0);
}

.site-title-button {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  padding: 0;
  text-align: left;
}

.site-title-button:hover h1 {
  color: var(--accent);
}

.tree-toolbar {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.tree-panel-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tree-panel-pin {
  display: grid;
  width: 30px;
  height: 30px;
  min-height: 30px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--muted);
  padding: 0;
}

.tree-panel-pin:hover,
.tree-panel-pin[aria-pressed="true"] {
  border-color: var(--accent-2);
  background: var(--hover-bg);
  color: var(--accent);
}

.tree-panel-pin .app-icon {
  width: 15px;
  height: 15px;
}

.search-label {
  display: block;
  margin-bottom: 6px;
  color: #adc0b8;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tree-search {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--ink);
  padding: 0 10px;
  outline: none;
}

.search-box {
  position: relative;
}

.search-box .tree-search {
  padding-right: 38px;
}

.search-clear {
  position: absolute;
  top: calc(50% - 1px);
  right: 6px;
  transform: translateY(-50%);
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
}

.search-clear .app-icon {
  width: 13px;
  height: 13px;
}

.search-clear:hover {
  background: var(--hover-bg);
  color: var(--ink);
}

.tree-search::placeholder {
  color: color-mix(in oklab, var(--muted) 62%, transparent);
}

.tree-search:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent-2) 18%, transparent);
}

.tree-toolbar-actions {
  display: flex;
  justify-content: flex-start;
  gap: 8px;
  margin-top: 10px;
}

.tree-toolbar-actions button {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-width: 36px;
  width: 36px;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--tree-ink);
  padding: 0;
}

.tree-toolbar-actions button:hover {
  border-color: var(--accent-2);
  background: var(--hover-bg);
}

.tree-tabs {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 6px;
  padding: 10px 16px 0;
}

.tree-tabs button {
  width: 40px;
  min-width: 40px;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 10px 10px 0 0;
  background: var(--panel);
  color: var(--muted);
  font-weight: 600;
  padding: 0;
}

.tree-tabs button.is-active {
  border-color: var(--line);
  border-bottom-color: transparent;
  background: var(--tree-2);
  color: var(--ink);
}

.home-tab {
  min-width: 38px;
  font-size: 1.05rem;
  line-height: 1;
  padding: 0 9px;
}

.app-icon {
  display: block;
  width: 16px;
  height: 16px;
  stroke-width: 2;
}

.home-tab .app-icon {
  width: 17px;
  height: 17px;
}

.tree-scroll {
  flex: 1;
  overflow: auto;
  padding: 10px 8px 22px;
}

.tree-root,
.tree-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tree-children {
  margin-left: 18px;
}

.tree-item {
  margin: 2px 0;
}

.tree-row {
  display: grid;
  grid-template-columns: 22px 22px minmax(0, 1fr);
  align-items: center;
  width: 100%;
  min-height: 36px;
  gap: 4px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  padding: 5px 8px;
  text-align: left;
}

.tree-row:hover {
  background: var(--tree-2);
}

.tree-row[aria-current="page"] {
  background: color-mix(in oklab, var(--accent-2) 12%, var(--panel));
  box-shadow: inset 3px 0 0 var(--accent-2);
  color: var(--accent);
}

.tree-toggle {
  color: var(--muted);
  font-size: 0.72rem;
  transition: transform 120ms ease;
}

.node-icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--muted);
}

.tree-row[aria-current="page"] .node-icon {
  color: var(--accent-2);
}

.tree-row[aria-expanded="true"] .tree-toggle {
  transform: rotate(90deg);
}

.tree-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.index-scroll {
  padding: 10px 12px 18px;
}

.index-search-wrap {
  position: sticky;
  top: 0;
  z-index: 1;
  margin-bottom: 10px;
  padding-bottom: 8px;
  background: var(--tree);
}

.index-list {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.index-entry {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 9px;
}

.index-entry strong {
  display: block;
  color: var(--ink);
  font-size: 0.86rem;
  margin-bottom: 6px;
}

.index-links {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.index-links button,
.index-links span {
  min-height: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--tree-2);
  color: var(--muted);
  padding: 0 8px;
  font-size: 0.72rem;
}

.index-links button:hover {
  border-color: var(--accent-2);
  color: var(--accent);
}

.index-empty {
  color: var(--muted);
  padding: 10px 4px;
  font-size: 0.86rem;
}

.tree-account {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--line);
}

.tree-panel-resizer {
  position: absolute;
  top: 0;
  right: -5px;
  bottom: 0;
  z-index: 3;
  width: 10px;
  cursor: col-resize;
  touch-action: none;
}

.tree-panel-resizer::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 4px;
  bottom: 12px;
  width: 2px;
  border-radius: 999px;
  background: transparent;
}

.tree-panel-resizer:hover::after,
.is-resizing-tree .tree-panel-resizer::after {
  background: var(--accent-2);
}

.tree-edge-tab {
  position: fixed;
  left: 0;
  top: 113px;
  z-index: 45;
  width: 18px;
  height: 417px;
  border: 1px solid var(--line);
  border-left: 0;
  border-radius: 0 12px 12px 0;
  background: var(--panel);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
}

.tree-edge-tab::after {
  content: "";
  position: absolute;
  top: 205px;
  left: 5px;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
}

.app-shell.tree-is-collapsed .tree-edge-tab {
  opacity: 1;
  pointer-events: auto;
}

.tree-edge-tab:hover {
  border-color: var(--accent-2);
  background: var(--hover-bg);
}

.tree-scrim {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(15, 23, 42, 0.42);
}

.panel-action {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-width: 40px;
  width: 40px;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--tree-ink);
  padding: 0;
}

.panel-action:hover {
  border-color: var(--accent-2);
  background: var(--tree-2);
}

.user-action {
  border-color: color-mix(in oklab, var(--accent-2) 36%, var(--line));
  background: color-mix(in oklab, var(--accent-2) 12%, var(--panel));
  color: var(--accent);
}

.content-panel {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  overflow: hidden;
  grid-column: 2;
  grid-row: 2;
}

.content-topbar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 48px;
}

.site-logo {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  object-fit: contain;
  border-radius: 12px;
}

.site-header h1 {
  margin: 2px 0 0;
  font-size: clamp(1.35rem, 2.2vw, 1.875rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0;
}

.content-breadcrumb {
  flex: 0 0 auto;
  min-height: 30px;
  color: var(--muted);
  padding: 4px 28px 5px;
  font-size: 0.84rem;
  overflow: visible;
}

.breadcrumb-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.breadcrumb-link {
  border: 0;
  background: transparent;
  color: var(--accent);
  padding: 0;
  font-weight: 600;
  text-align: left;
}

.breadcrumb-link:hover,
.breadcrumb-link:focus-visible {
  text-decoration: underline;
  outline: none;
}

.breadcrumb-menu {
  position: absolute;
  top: calc(100% + 7px);
  left: 0;
  z-index: 35;
  display: none;
  min-width: 190px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow-lg);
  padding: 6px;
}

.breadcrumb-item:hover .breadcrumb-menu,
.breadcrumb-item:focus-within .breadcrumb-menu,
.breadcrumb-item.is-open .breadcrumb-menu {
  display: grid;
}

.breadcrumb-menu button {
  min-height: 30px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  padding: 0 10px;
  text-align: left;
  white-space: nowrap;
}

.breadcrumb-menu button:hover {
  background: var(--tree-2);
}

.breadcrumb-current,
.breadcrumb-separator {
  color: var(--muted);
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 700;
}

.breadcrumb-current:hover,
.breadcrumb-current:focus-visible {
  color: var(--accent);
}

.breadcrumb-separator {
  margin: 0 7px;
}

.mode-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  background: var(--input-bg);
  padding: 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.mode-toggle:hover {
  border-color: var(--accent-2);
  background: var(--tree-2);
  color: var(--accent);
}

.mode-toggle[aria-pressed="true"] {
  border-color: var(--accent-2);
  background: color-mix(in oklab, var(--accent-2) 14%, var(--panel));
  color: var(--accent);
}

.save-toggle {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.save-toggle.is-visible {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.icon-toggle {
  min-width: 40px;
  width: 40px;
  padding: 0;
}

.icon-toggle .app-icon {
  width: 17px;
  height: 17px;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 0;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--input-bg);
  color: var(--muted);
  padding: 0 5px;
  font-size: 0.8rem;
  font-weight: 700;
}

.theme-switch:hover {
  border-color: var(--accent-2);
  background: var(--hover-bg);
  color: var(--accent);
}

.theme-switch-track {
  position: relative;
  display: block;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: var(--tree-2);
}

.theme-switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 999px;
  background: var(--panel);
  color: var(--accent);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.22);
  transition: transform 140ms ease;
}

.theme-switch.is-on .theme-switch-thumb {
  transform: translateX(18px);
}

.theme-switch-thumb .app-icon {
  width: 12px;
  height: 12px;
}

.header-menu {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  min-height: 32px;
  padding: 0 5mm;
  position: absolute;
  right: 0;
  bottom: 2.5mm;
  left: 0;
}

.menu-root {
  position: relative;
}

.menu-root-button,
.menu-child-button {
  min-height: 32px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  padding: 0 12px;
  font-size: 0.88rem;
  font-weight: 600;
}

.menu-root-button:hover,
.menu-root.is-open > .menu-root-button,
.menu-child-button:hover {
  border-color: var(--line);
  background: var(--tree-2);
}

.menu-children {
  position: absolute;
  left: 50%;
  top: calc(100% + 6px);
  z-index: 30;
  display: grid;
  min-width: 190px;
  transform: translateX(-50%);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow-lg);
  padding: 6px;
}

.menu-child-button {
  display: block;
  width: 100%;
  text-align: left;
  font-weight: 500;
}

.wide-dialog {
  width: min(620px, calc(100vw - 32px));
}

.wide-dialog textarea {
  min-height: 180px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 11px;
  resize: vertical;
}

.content-workspace {
  overflow: auto;
  padding: 16px 32px 32px;
}

.content-editor-panel,
.content-footer {
  max-width: 920px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.content-editor-panel {
  overflow: hidden;
}

.content-editor-toolbar {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 7px;
  padding: 10px 12px;
}

.content-editor-toolbar button,
.asset-actions button {
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  display: inline-flex;
  height: 32px;
  justify-content: center;
  padding: 0;
  width: 34px;
}

.content-editor-toolbar button:hover,
.content-editor-toolbar button.is-active,
.asset-actions button:hover {
  background: var(--hover-bg);
  border-color: var(--accent-2);
}

.richview {
  border: 0;
  box-shadow: none;
  max-width: none;
  padding: clamp(24px, 4vw, 48px);
}

.richview-title {
  margin: 0 0 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: clamp(1.5rem, 2.2vw, 1.875rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}

.content-footer {
  margin-top: 18px;
  padding: 16px 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.content-footer:empty {
  display: none;
}

.richview h2 {
  margin: 0 0 16px;
  font-size: clamp(1.25rem, 1.9vw, 1.5rem);
  font-weight: 700;
  line-height: 1.25;
}

.richview h3 {
  margin: 28px 0 10px;
  font-size: 1.2rem;
  font-weight: 600;
}

.richview p,
.richview li {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.68;
}

.richview p {
  margin: 0 0 16px;
}

.richview ul {
  padding-left: 20px;
}

.richview .lede {
  color: var(--ink);
  font-size: 1.06rem;
}

.richview .callout {
  border-left: 4px solid var(--accent-2);
  background: color-mix(in oklab, var(--accent-2) 9%, var(--panel));
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  padding: 16px 18px;
}

.editor {
  border: 0;
  box-shadow: none;
  display: grid;
  gap: 16px;
  margin-top: 0;
  max-width: none;
  padding: 22px;
}

.richedit-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-bottom: 4px;
}

.footer-html-menu {
  margin-top: 7px;
  padding-bottom: 0;
}

.footer-content-summary {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 10px 11px;
}

.footer-content-summary p {
  display: -webkit-box;
  margin: 2px 0 0;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.field-label {
  color: var(--muted);
  font-weight: 600;
}

.footer-editor-dialog {
  height: min(760px, calc(100dvh - 32px));
  overflow: auto;
  resize: both;
  width: min(900px, calc(100vw - 32px));
}

.footer-editor-dialog form {
  grid-template-rows: auto auto minmax(260px, 1fr) auto;
  min-height: 100%;
}

.footer-editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-right: 34px;
}

.footer-editor-toolbar button {
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  display: inline-flex;
  height: 32px;
  justify-content: center;
  padding: 0;
  width: 34px;
}

.footer-editor-toolbar button:hover {
  background: var(--hover-bg);
  border-color: var(--accent-2);
}

.footer-editor-toolbar .app-icon {
  height: 16px;
  width: 16px;
}

.footer-wysiwyg-editor {
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  min-height: 260px;
  overflow: auto;
  padding: 12px;
}

.footer-wysiwyg-editor:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent-2) 18%, transparent);
  outline: none;
}

.richedit-menu button {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-width: 34px;
  width: 34px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--ink);
  padding: 0;
  font-weight: 600;
}

.richedit-menu button .app-icon {
  height: 16px;
  width: 16px;
}

.html-assets-panel {
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto;
  padding: 12px;
}

.html-assets-panel label {
  margin: 0;
}

.asset-actions {
  display: flex;
  gap: 6px;
}

.richedit-menu button:hover {
  border-color: var(--accent-2);
  background: var(--tree-2);
}

.editor label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.editor input,
.editor select,
.editor textarea,
.html-wysiwyg-editor {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  background: var(--input-bg);
  padding: 10px 11px;
  outline: none;
}

.editor textarea {
  min-height: 260px;
  resize: vertical;
  line-height: 1.55;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.92rem;
}

.html-wysiwyg-editor {
  min-height: 260px;
  overflow: auto;
  line-height: 1.55;
}

.editor input:focus,
.editor select:focus,
.editor textarea:focus,
.html-wysiwyg-editor:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent-2) 18%, transparent);
}

.editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 14px;
}

.button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--ink);
  padding: 0 13px;
  font-weight: 600;
}

.button:hover {
  border-color: var(--accent-2);
  background: var(--tree-2);
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.button.primary:hover {
  background: color-mix(in oklab, var(--accent) 90%, black);
  color: white;
}

.button.ghost {
  background: transparent;
}

.button.danger {
  border-color: #f0b4ad;
  color: var(--danger);
}

.tree-row.is-hidden {
  color: var(--muted);
  opacity: 0.72;
}

.tree-row.is-hidden .tree-title::after {
  content: " hidden";
  color: var(--warning);
  font-size: 0.68rem;
  margin-left: 6px;
}

.context-menu {
  position: fixed;
  z-index: 50;
  width: 180px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow-lg);
  padding: 6px;
}

.context-menu button {
  display: block;
  width: 100%;
  min-height: 32px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  padding: 0 10px;
  text-align: left;
}

.context-menu button:hover:not(:disabled) {
  background: var(--tree-2);
}

.context-menu button:disabled {
  color: color-mix(in oklab, var(--muted) 60%, var(--panel));
  cursor: default;
}

.context-menu button.danger {
  color: var(--danger);
}

.context-menu hr {
  height: 1px;
  border: 0;
  background: var(--line);
  margin: 6px 0;
}

.unlock-dialog {
  width: min(420px, calc(100vw - 32px));
  border: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 0;
}

.unlock-dialog::backdrop {
  background: rgba(15, 23, 42, 0.42);
}

.unlock-dialog form {
  display: grid;
  gap: 14px;
  padding: 22px;
  position: relative;
}

.unlock-dialog h2,
.unlock-dialog p {
  margin: 0;
}

.unlock-dialog p {
  color: var(--muted);
  line-height: 1.55;
}

.settings-section {
  display: grid;
  gap: 10px;
  margin-top: 4px;
}

.settings-section h3 {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
}

.palette-options {
  display: grid;
  gap: 8px;
}

.palette-option {
  display: grid;
  grid-template-columns: auto minmax(72px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--input-bg);
  padding: 10px;
  cursor: pointer;
}

.palette-option:hover,
.palette-option.is-selected {
  border-color: var(--accent-2);
  background: color-mix(in oklab, var(--accent-2) 10%, var(--panel));
}

.palette-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-2);
}

.palette-swatches {
  display: grid;
  grid-template-columns: repeat(4, 16px);
  gap: 4px;
}

.palette-swatches span {
  width: 16px;
  height: 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.palette-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.palette-copy strong {
  color: var(--ink);
  font-size: 0.88rem;
}

.palette-copy span {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.unlock-dialog .form-error {
  border-left: 3px solid var(--danger);
  background: color-mix(in oklab, var(--danger) 10%, var(--panel));
  color: var(--danger);
  border-radius: 0 10px 10px 0;
  padding: 10px 12px;
  font-weight: 600;
}

.unlock-dialog .form-success {
  border-left: 3px solid var(--success);
  background: color-mix(in oklab, var(--success) 10%, var(--panel));
  color: var(--success);
  border-radius: 0 10px 10px 0;
  padding: 10px 12px;
  font-weight: 600;
}

.unlock-dialog label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 600;
}

.unlock-dialog input,
.unlock-dialog select,
.unlock-dialog textarea {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 11px;
}

.unlock-dialog input:focus,
.unlock-dialog select:focus,
.unlock-dialog textarea:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent-2) 18%, transparent);
  outline: none;
}

.unlock-dialog textarea {
  min-height: 140px;
  resize: vertical;
}

.unlock-dialog menu {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.dialog-close-icon {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  height: 32px;
  justify-content: center;
  padding: 0;
  position: absolute;
  right: 14px;
  top: 14px;
  width: 32px;
}

.dialog-close-icon:hover {
  background: var(--soft);
  color: var(--ink);
}

.dialog-close-icon .app-icon {
  height: 17px;
  width: 17px;
}

.unlock-dialog .split-actions {
  align-items: center;
  justify-content: space-between;
}

.dialog-actions-left,
.dialog-actions-right {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dialog-actions-right {
  justify-content: flex-end;
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    min-height: 100dvh;
    height: 100dvh;
  }

  .site-header {
    min-height: calc(98px - 4mm);
    padding: 9px 18px 7px;
    gap: 6px;
  }

  .tree-panel {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: min(88vw, 360px);
    max-width: 360px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
    box-shadow: var(--shadow-lg);
    transform: translateX(0);
  }

  .app-shell.tree-is-collapsed .tree-panel {
    pointer-events: none;
    transform: translateX(-102%);
  }

  .tree-panel-resizer {
    display: none;
  }

  .content-topbar-main {
    align-items: flex-start;
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .site-title-button {
    max-width: 100%;
  }

  .mode-controls {
    justify-content: flex-start;
    gap: 8px;
  }

  .header-menu {
    justify-content: flex-start;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 0;
  }

  .content-workspace {
    padding: 9px 14px 18px;
  }

  .content-breadcrumb {
    padding-inline: 14px;
  }

  .richview,
  .editor,
  .content-editor-panel,
  .content-footer {
    max-width: none;
  }

  .content-panel {
    grid-column: 1;
  }

  .editor-grid {
    grid-template-columns: 1fr;
  }

  .html-assets-panel {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 520px) {
  .site-header h1 {
    font-size: 1.3rem;
  }

  .site-logo {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .mode-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .editor-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button,
  .mode-toggle {
    justify-content: center;
    width: 100%;
    min-width: 0;
    padding-inline: 8px;
  }

  .icon-toggle,
  .mode-controls .icon-toggle,
  .dialog-actions .icon-toggle {
    min-width: 40px;
    width: 40px;
    padding-inline: 0;
  }

  .tree-tabs {
    padding-inline: 12px;
  }

  .tree-scroll {
    padding-inline: 8px;
  }

  .richview {
    padding: 22px;
  }

  .richview-title {
    font-size: 1.38rem;
  }

  .palette-option {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .palette-swatches {
    grid-column: 2;
    grid-row: 2;
  }
}