.selectable-surface {
  transition: background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.selectable-surface:hover,
.selectable-surface:focus-within {
  background: var(--color-surface);
  box-shadow: 0 0.55rem 1.25rem color-mix(in srgb, var(--color-ink-strong) 12%, transparent);
  transform: translateY(-0.12rem);
}

.selectable-surface.is-selected {
  background: var(--color-surface);
  box-shadow: inset 0 0 0 2px var(--color-selection-outline), 0 0.35rem 0.9rem color-mix(in srgb, var(--color-ink-strong) 7%, transparent);
}

.selectable-surface.is-selected:hover,
.selectable-surface.is-selected:focus-within {
  box-shadow: inset 0 0 0 2px var(--color-selection-outline), 0 0.55rem 1.25rem color-mix(in srgb, var(--color-ink-strong) 12%, transparent);
}

.view-switcher {
  align-items: center;
  background: color-mix(in srgb, var(--color-ink) 5%, transparent);
  border-radius: 999px;
  display: inline-grid;
  grid-auto-columns: 1fr;
  grid-auto-flow: column;
  isolation: isolate;
  padding: 0.18rem;
  position: relative;
}

.view-switcher::before {
  background: var(--color-surface);
  border-radius: 999px;
  box-shadow: 0 1px 3px color-mix(in srgb, var(--color-ink) 14%, transparent);
  content: "";
  inset: 0.18rem auto 0.18rem 0.18rem;
  position: absolute;
  transform: translateX(0);
  transition: transform var(--panel-motion-duration) var(--panel-motion-easing);
  width: calc(50% - 0.18rem);
  z-index: 0;
}

.view-switcher:has(button:nth-child(2)[aria-selected="true"])::before {
  transform: translateX(100%);
}

.view-switcher button {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--color-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  position: relative;
  z-index: 1;
}

.view-switcher button[aria-selected="true"] {
  color: var(--color-ink-strong);
}

[data-view-switcher-panel][hidden] {
  display: none;
}

.definition-list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  max-width: 34rem;
}

.definition-list__item {
  display: grid;
  gap: var(--space-1);
}

.definition-list dt {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.definition-list dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.form-notice {
  margin: 0;
}

.primary-button {
  background: var(--color-ink-strong);
  border: 0;
  border-radius: var(--radius-control);
  color: var(--color-surface);
  font-weight: 700;
  margin-top: var(--space-3);
  padding: 0.8rem 1rem;
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.secondary-button {
  align-items: center;
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--color-ink) 18%, transparent);
  border-radius: var(--radius-control);
  color: var(--color-ink-strong);
  display: inline-flex;
  font-size: 0.8rem;
  font-weight: 700;
  gap: 0.3rem;
  padding: 0.55rem 0.75rem;
  text-decoration: none;
}

.secondary-button:hover {
  background: color-mix(in srgb, var(--color-surface) 65%, transparent);
}

.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.secondary-button .material-symbols-rounded {
  font-size: 1.1rem;
}

.secondary-button--compact {
  border-color: transparent;
  color: var(--color-muted);
  padding: 0.35rem 0.55rem;
}

.destructive-action {
  color: var(--color-danger);
}

.icon-button {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 50%;
  text-decoration: none;
  color: var(--color-muted);
  display: inline-flex;
  padding: 0.35rem;
}

.icon-button:hover {
  background: color-mix(in srgb, var(--color-danger) 8%, transparent);
  color: var(--color-danger);
}

.icon-button:disabled {
  background: transparent;
  color: color-mix(in srgb, var(--color-muted) 45%, transparent);
  cursor: not-allowed;
}

.empty-message {
  color: var(--color-muted);
  font-size: 0.7rem;
  margin: var(--space-3) 0 0;
}

.empty-state {
  border-top: 1px solid color-mix(in srgb, var(--color-ink) 14%, transparent);
  padding: var(--space-6) 0;
}

.empty-state--bounded {
  border-bottom: 1px solid color-mix(in srgb, var(--color-ink) 14%, transparent);
  border-color: color-mix(in srgb, var(--color-ink) 12%, transparent);
}

.empty-state > .material-symbols-rounded {
  font-size: 2rem;
}

.empty-state--bounded > .material-symbols-rounded {
  color: var(--color-muted);
}

.empty-state h2,
.empty-state h3,
.empty-state p {
  margin: var(--space-2) 0 0;
}

.empty-state h2 {
  font-size: var(--font-size-section-title);
}

.empty-state p {
  color: var(--color-muted);
}

.search-control {
  position: relative;
}

.search-control__icon {
  color: var(--color-muted);
  pointer-events: none;
  position: absolute;
  z-index: 1;
}

.search-control__results {
  border: 1px solid color-mix(in srgb, var(--color-ink) 14%, transparent);
  display: grid;
  max-height: 18rem;
  overflow-y: auto;
}

.search-control__results[hidden],
.search-control__results [hidden] {
  display: none;
}

.unit-search__icon {
  font-size: 1.15rem;
  left: 0.75rem;
  top: 0.72rem;
}

.editor-form .unit-search input[type="search"] {
  padding-inline-start: 2.5rem;
  width: 100%;
}

.unit-search__results {
  border-radius: 0.35rem;
  margin-top: var(--space-1);
}

.unit-search__results button {
  background: transparent;
  border: 0;
  border-radius: 0;
  color: inherit;
  display: grid;
  gap: 0.15rem;
  padding: 0.7rem 0.8rem;
  text-align: left;
}

.unit-search__results button + button {
  border-top: 1px solid color-mix(in srgb, var(--color-ink) 8%, transparent);
}

.unit-search__results button:hover,
.unit-search__results button:focus-visible {
  background: color-mix(in srgb, var(--color-surface) 65%, transparent);
}

.unit-search__results button.is-filtered {
  display: none;
}

.unit-search__results span,
.unit-search__empty {
  color: var(--color-muted);
  font-size: 0.76rem;
}

.unit-search__empty {
  margin: 0;
  padding: var(--space-3);
}

.selection-list {
  display: grid;
}

.selection-list__row {
  align-items: center;
  border-top: 1px solid color-mix(in srgb, var(--color-ink) 8%, transparent);
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
  padding: var(--space-2) 0;
}

.selection-list__row > strong {
  min-width: 0;
  overflow-wrap: anywhere;
}

.selection-editor {
  border-bottom: 1px solid color-mix(in srgb, var(--color-ink) 12%, transparent);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
}

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

.label {
  color: color-mix(in srgb, var(--color-muted) 72%, var(--color-surface));
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0;
  text-transform: uppercase;
}

.nested-panel__header .label,
.pane-breadcrumb__header .label {
  margin-bottom: var(--space-2);
}

.section-heading h2 {
  font-size: var(--font-size-section-title);
  margin: 0;
}

.section-heading > span {
  color: var(--color-muted);
  font-size: 0.85rem;
}

.pane-list-actions {
  align-items: start;
  display: grid;
  justify-items: start;
  margin-top: var(--space-4);
}

.pane-list-action {
  align-items: center;
  background: none;
  border: 0;
  color: var(--color-ink-strong);
  cursor: pointer;
  display: flex;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  text-align: left;
  text-decoration: none;
}

.pane-list-action .material-symbols-rounded {
  font-size: 1.15rem;
}

.editor-form {
  display: grid;
  gap: var(--space-2);
}

.editor-form label,
.editor-form__label {
  font-size: 0.72rem;
  font-weight: 700;
}

.editor-form label {
  margin-top: var(--space-1);
}

.editor-form__field {
  display: grid;
  gap: var(--space-1);
}

.editor-form__field label,
.editor-form__label {
  margin: 0;
}

.editor-form input,
.editor-form select,
.editor-form textarea {
  background: color-mix(in srgb, var(--color-surface) 70%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-ink) 15%, transparent);
  border-radius: 0.65rem;
  color: inherit;
  font: inherit;
  font-size: 0.82rem;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  width: 100%;
}

.editor-form input:focus,
.editor-form select:focus,
.editor-form textarea:focus {
  background: var(--color-surface);
  border-color: var(--color-ink-strong);
}

.editor-form textarea {
  resize: vertical;
}

.editor-form textarea[data-autoresize] {
  resize: none;
}

.editor-form .primary-button {
  justify-self: start;
  margin-top: var(--space-2);
  padding: 0.65rem 0.9rem;
}

.editor-form-actions {
  align-items: center;
  display: flex;
  gap: var(--space-3);
  justify-content: flex-start;
  margin-top: var(--space-4);
}

.editor-form-actions form {
  margin: 0;
}

.editor-form-actions .primary-button,
.editor-form-actions .secondary-button {
  font-size: 0.8rem;
  height: 2.625rem;
  justify-content: center;
  margin: 0;
  padding: 0.65rem 0.9rem;
}

.autosave-status {
  color: var(--color-muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.autosave-status [data-save-state-saving] {
  display: none;
}

.autosave-status.is-error {
  color: var(--color-danger);
}

.nested-panel__header {
  align-items: start;
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
}

.nested-panel__header h1 {
  font-size: var(--font-size-pane-title);
  margin-bottom: var(--space-4);
  overflow-wrap: anywhere;
}

.nested-panel__header:has(> .ui-pane__close),
.pane-breadcrumb__header:has(> .ui-pane__close) {
  padding-inline-end: 3rem;
}

.nested-panel__introduction {
  color: var(--color-muted);
  margin: 0 0 var(--space-5);
  max-width: 34rem;
}

.editor-form--panel {
  gap: var(--space-3);
}

.editor-form--panel label {
  margin-bottom: calc(-1 * var(--space-2));
}

.editor-form--panel .editor-form__field label {
  margin: 0;
}

.editor-form__hint {
  color: var(--color-muted);
  font-size: 0.74rem;
  line-height: 1.45;
  margin: calc(-1 * var(--space-2)) 0 0;
}

.editor-form--panel label + .editor-form__hint {
  margin-top: 0;
}

.editor-form__hint code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

@container form-pane (max-width: 24rem) {
  .nested-panel__header {
    gap: var(--space-2);
  }

  .nested-panel__introduction {
    margin-bottom: var(--space-4);
  }

  .editor-form .primary-button {
    justify-self: stretch;
  }

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

  .editor-form-actions form,
  .editor-form-actions button {
    width: 100%;
  }
}

.form-error {
  color: var(--color-danger);
  margin: 0;
}