@layer surfaces {

/* Storyboard lens: Prose/Board toggle + board view */
.document-view-toggle {
  display: inline-flex;
  gap: 0;
  margin-bottom: 1rem;
  border: 1px solid var(--c-gray-300);
  border-radius: 6px;
  overflow: hidden;
  width: fit-content;
}

.document-view-button {
  border: 0;
  background: var(--c-white);
  color: var(--c-gray-500);
  cursor: pointer;
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.3rem 0.85rem;
}

.document-view-button + .document-view-button {
  border-left: 1px solid var(--c-gray-300);
}

.document-view-button:hover {
  color: var(--c-gray-900);
}

.editor-surface[data-view-mode="prose"] .document-view-button.is-prose,
.editor-surface[data-view-mode="board"] .document-view-button.is-board {
  background: var(--c-ink);
  color: var(--c-white);
}

/* View switching: prose shows the workspace, board shows the board surface. */
.document-board {
  display: none;
}

.editor-surface[data-view-mode="board"] .editor-workspace {
  display: none;
}

/* The board is a full-bleed lens: no annotation gutter, so no rail or drawer either. */
.editor-surface[data-view-mode="board"] .editor-lens-rail,
.editor-surface[data-view-mode="board"] .editor-lens-drawer {
  display: none;
}

.editor-surface[data-view-mode="board"] .document-board {
  display: block;
}

.document-board-empty {
  color: var(--c-gray-500);
  font-size: 0.95rem;
}

.document-board-columns {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  overflow-x: auto;
  padding-bottom: 1rem;
}

.document-board-column {
  flex: 0 0 18rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border: 1px solid var(--c-gray-200);
  border-radius: 8px;
  background: var(--c-gray-25);
  padding: 0.75rem;
}

.document-board-column-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}

.document-board-column-title {
  color: var(--c-gray-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--ls-kicker);
  text-transform: uppercase;
}

.document-board-column-count {
  color: var(--c-gray-500);
  font-size: 0.75rem;
}

.document-board-cards {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 2.5rem;
}

.document-board-card {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--c-gray-200);
  border-radius: 6px;
  background: var(--c-white);
  padding: 0.6rem 0.7rem;
  cursor: grab;
}

.document-board-card.is-dragging {
  opacity: 0.5;
}

.document-board-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.document-board-card-title {
  border: 0;
  background: transparent;
  color: var(--c-gray-900);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: left;
  padding: 0;
}

.document-board-card-title:hover {
  color: var(--c-accent);
}

.document-board-card-status {
  flex: 0 0 auto;
  border: 1px solid var(--c-gray-300);
  border-radius: 999px;
  background: var(--c-white);
  color: var(--c-gray-500);
  cursor: pointer;
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
}

.document-board-card-status[data-status] {
  border-color: var(--c-accent);
  color: var(--c-accent);
  font-weight: 600;
}

/* "planned" reads quiet — it is intention, not achievement, so it stays in the
   grays and leaves the accent to the statuses prose has earned. */
.document-board-card-status[data-status="planned"] {
  border-color: var(--c-gray-400);
  color: var(--c-gray-600);
}

/* In-place synopsis: the note-card textarea primitive on the card — quiet until touched. */
.document-board-card-synopsis {
  margin: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--c-gray-600);
  cursor: text;
  font: inherit;
  font-size: 0.8125rem;
  line-height: 1.35;
  padding: 0.15rem 0.25rem;
  resize: none;
  width: 100%;
}

/* An empty card stays empty — the placeholder invitation appears only when the writer
   reaches for the card (hover/focus), so the board reflects rather than prompts. */
.document-board-card-synopsis::placeholder {
  color: transparent;
}

.document-board-card-synopsis:hover::placeholder,
.document-board-card-synopsis:focus::placeholder {
  color: var(--c-gray-400);
}

.document-board-card-synopsis:hover {
  border-color: var(--c-gray-200);
}

.document-board-card-synopsis:focus {
  border-color: var(--c-gray-300);
  background: var(--c-white);
  color: var(--c-gray-900);
  outline: none;
}

.document-board-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.document-board-card-tag {
  border: 1px solid var(--c-gray-300);
  border-radius: 999px;
  background: var(--c-gray-50);
  color: var(--c-gray-700);
  font-size: 0.75rem;
  padding: 0.05rem 0.45rem;
}

/* Structure-template overlay: picker, spine of beats, per-card beat assignment */
.document-board-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.document-board-template-label {
  color: var(--c-gray-500);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--ls-kicker);
  text-transform: uppercase;
}

.document-board-template-select,
.document-board-card-beat {
  border: 1px solid var(--c-gray-300);
  border-radius: 4px;
  background: var(--c-white);
  color: var(--c-gray-900);
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.25rem 0.4rem;
}

.document-board-spine {
  margin-bottom: 1rem;
  border: 1px solid var(--c-gray-200);
  border-radius: 8px;
  background: var(--c-white);
  padding: 0.75rem;
}

.document-board-spine-summary {
  margin: 0 0 0.6rem;
  color: var(--c-gray-700);
  font-size: 0.8125rem;
  font-weight: 600;
}

.document-board-beats {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.3rem;
}

.document-board-beat {
  flex: 0 0 auto;
  display: grid;
  gap: 0.1rem;
  min-width: 6.5rem;
  border: 1px solid var(--c-gray-200);
  border-left: 3px solid var(--c-gray-300);
  border-radius: 4px;
  background: var(--c-gray-25);
  padding: 0.4rem 0.5rem;
}

.document-board-beat-name {
  color: var(--c-gray-900);
  font-size: 0.8125rem;
  font-weight: 600;
}

.document-board-beat-band {
  color: var(--c-gray-500);
  font-size: 0.7rem;
}

.document-board-beat-actual {
  color: var(--c-warning-700);
  font-size: 0.7rem;
  font-weight: 600;
}

.document-board-beat[data-beat-state="placed"] {
  border-left-color: var(--c-success);
  background: var(--c-success-50);
}

.document-board-beat[data-beat-state="misplaced"] {
  border-left-color: var(--c-warning);
  background: var(--c-warning-50);
}

.document-board-beat[data-beat-state="missing"] {
  border-left-color: var(--c-danger);
  background: var(--c-danger-50);
}

/* Below the planning-phase word floor a tagged beat is a declared fact, not a judgment —
   it reads as "tagged", in the accent, never in a verdict color. */
.document-board-beat[data-beat-state="assigned"] {
  border-left-color: var(--c-accent);
}

.document-board-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.document-board-card-beat {
  flex: 1 1 auto;
  min-width: 0;
}

.document-board-card-position {
  flex: 0 0 auto;
  color: var(--c-gray-500);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.document-versions-empty {
  color: var(--c-gray-500);
  font-size: 0.875rem;
  padding: 0.5rem 0;
}

.document-version {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
  border: 1px solid var(--c-gray-200);
  border-radius: 6px;
  background: var(--c-white);
  padding: 0.5rem;
}

.document-version.is-active {
  border-color: var(--c-gray-400);
  background: var(--c-gray-50);
}

.document-version-main {
  min-width: 0;
}

.document-version-label {
  overflow: hidden;
  color: var(--c-gray-900);
  font-size: 0.875rem;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.document-version-meta {
  overflow: hidden;
  color: var(--c-gray-500);
  font-size: 0.75rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.document-version-preview-button {
  min-height: 1.75rem;
  padding: 0.25rem 0.5rem;
}

.document-version-preview {
  margin-top: 0.75rem;
}

.document-version-preview-empty {
  border-top: 1px solid var(--c-gray-200);
  color: var(--c-gray-500);
  font-size: 0.875rem;
  padding: 0.75rem 0 0;
}

.document-version-preview-panel {
  display: grid;
  gap: 0.5rem;
  border-top: 1px solid var(--c-gray-200);
  padding-top: 0.75rem;
}

.document-version-preview-label {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--c-gray-300);
  border-radius: 4px;
  color: var(--c-gray-900);
  font: inherit;
  padding: 0.4rem 0.5rem;
}

.document-version-preview-meta {
  color: var(--c-gray-500);
  font-size: 0.75rem;
}

.document-version-preview-text {
  overflow: auto;
  max-height: 16rem;
  margin: 0;
  border: 1px solid var(--c-gray-200);
  border-radius: 6px;
  background: var(--c-gray-50);
  color: var(--c-gray-800);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.45;
  padding: 0.5rem;
  white-space: pre-wrap;
}

}