/* Writing canvas - original dark theme with manuscript workspace tools. */

.canvas-body {
  overflow: hidden;
  background: var(--bg-primary);
}

#canvas-app {
  display: grid;
  grid-template-columns: var(--files-w, 376px) 6px minmax(520px, 1fr) 6px 48px var(--asst-w, 530px);
  height: 100vh;
  width: 100%;
}

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

button {
  cursor: pointer;
}

.muted {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* ---- Original files pane ---- */
.canvas-files {
  grid-column: 1;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.pane-resizer {
  background: var(--border);
  cursor: col-resize;
  min-width: 6px;
  transition: background 0.15s;
}

.pane-resizer:hover,
.pane-resizer.dragging {
  background: var(--accent);
}

#resizer-files {
  grid-column: 2;
}

#resizer-assistant {
  grid-column: 4;
}

body.resizing {
  cursor: col-resize;
  user-select: none;
}

.cf-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.78rem;
}

.back-link:hover {
  color: var(--accent-hover);
}

.cf-bookview {
  margin-left: 12px;
}

.cf-header h2 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-top: 8px;
}

.cf-new {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.field-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cf-new input,
.cf-new select {
  width: 100%;
  min-width: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 0.78rem;
}

.cf-new input:focus,
.cf-new select:focus {
  outline: none;
  border-color: var(--accent);
}

.path-preview {
  color: var(--text-secondary);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
  line-height: 1.35;
  word-break: break-all;
}

#new-file-btn {
  border: 0;
  border-radius: 2px;
  padding: 3px 10px;
  font-size: 0.78rem;
}

.import-btn {
  display: block;
  text-align: center;
  cursor: pointer;
  border: 1px dashed var(--border);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 0.76rem;
}

.import-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background: var(--bg-tertiary);
}

.add-chapter {
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-hover);
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 0.78rem;
  font-weight: 600;
}
.add-chapter:hover { background: var(--accent); color: #fff; }

.cf-tree {
  flex: 1;
  overflow-y: auto;
  padding: 10px 8px;
}

.tree-node {
  padding: 5px 8px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.86rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-node:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.tree-node.dir {
  font-weight: 600;
  color: var(--text-primary);
}

.tree-node.file.active {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.tree-children {
  padding-left: 12px;
}

/* ---- Editor pane ---- */
.canvas-editor {
  grid-column: 3;
  display: grid;
  grid-template-rows: 36px 48px minmax(0, 1fr) 38px;
  min-width: 0;
  min-height: 0;
  background: var(--bg-primary);
}

.ce-bar {
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
}

.ce-path {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ce-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.save-status {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.save-status.dirty {
  color: #e3b341;
}

.save-status.saved {
  color: #7ee787;
}

#save-btn {
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: 5px;
  padding: 6px 10px;
  font-size: 0.78rem;
}

#save-btn:hover:not(:disabled) {
  border-color: var(--accent);
}

#save-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.editor-toolbar {
  margin: 6px 4px 8px;
  min-height: 32px;
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0 10px;
}

.editor-toolbar button {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  border-radius: 4px;
  font-size: 1rem;
}

.editor-toolbar button:hover {
  background: var(--bg-tertiary);
}

.editor-toolbar button:disabled { opacity: 0.4; cursor: default; }
.editor-toolbar button.busy { color: var(--accent-hover); }

/* Labeled pill buttons for the scene-beat workflow. */
.editor-toolbar button.tb-beat {
  width: auto;
  padding: 0 14px;
  gap: 5px;
  border-radius: 20px;
  border: 1px solid var(--border);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.editor-toolbar button.tb-beat:hover { border-color: var(--accent); color: var(--text-primary); background: transparent; }
#gen-beat-btn {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-hover);
}
#gen-beat-btn:hover:not(:disabled) { background: var(--accent); color: #fff; }

.tool-separator {
  width: 1px;
  height: 22px;
  background: var(--border);
  margin: 0 6px;
  flex: 0 0 auto;
}

.writing-stage {
  min-height: 0;
  overflow: auto;
  padding: 8px 4px 0;
  background: var(--bg-primary);
}

.page-shell {
  min-height: 100%;
  background: var(--bg-primary);
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
}

.chapter-head {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr) 42px;
  align-items: start;
  gap: 15px;
  padding: 16px 18px 5px;
}

.cover-btn {
  width: 36px;
  height: 50px;
  display: grid;
  place-items: center;
  color: var(--accent-hover);
  background: var(--accent-soft);
  border: 0;
  border-radius: 4px;
  font-size: 1.3rem;
}

.title-stack {
  min-width: 0;
}

.chapter-title,
.chapter-subtitle {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  min-width: 0;
}

.chapter-title {
  color: var(--text-primary);
  font-size: 1.4rem;
  line-height: 1.2;
  font-weight: 500;
}

.chapter-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.3;
  margin-top: 2px;
}

.chapter-title:focus,
.chapter-subtitle:focus {
  outline: none;
}

.settings-btn {
  width: 34px;
  height: 34px;
  justify-self: end;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  color: var(--text-secondary);
  border-radius: 4px;
}

.settings-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.editor-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
}

#editor {
  flex: 1;
  width: 100%;
  min-height: 620px;
  resize: none;
  border: none;
  background: transparent;
  color: var(--text-primary);
  padding: 17px 18px 38px;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  line-height: 1.85;
}

#editor::placeholder {
  color: var(--text-secondary);
  font-family: var(--font-sans);
}

#editor:focus {
  outline: none;
}

#editor:disabled {
  color: var(--text-secondary);
}

.ce-foot {
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 18px;
  font-size: 0.74rem;
  color: var(--text-secondary);
}

.foot-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.ghost-action {
  border: 0;
  border-left: 1px solid var(--border);
  background: transparent;
  color: var(--accent-hover);
  padding: 0 10px;
  font-size: 0.78rem;
}

.ghost-action:hover {
  color: var(--text-primary);
}

.autosave-note {
  white-space: nowrap;
}

#word-count {
  white-space: nowrap;
}

/* ---- Right rail ---- */
.right-rail {
  grid-column: 5;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.rail-btn {
  width: 48px;
  height: 64px;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.35rem;
}

.rail-btn:hover,
.rail-btn.active {
  background: var(--bg-tertiary);
  color: var(--accent-hover);
}

.rail-bottom {
  margin-top: auto;
  border-top: 1px solid var(--border);
  border-bottom: none;
}

/* ---- Assistant pane ---- */
.canvas-assistant {
  grid-column: 6;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

#canvas-app.assistant-collapsed {
  grid-template-columns: var(--files-w, 376px) 6px minmax(520px, 1fr) 0 48px 0;
}

#canvas-app.assistant-collapsed .canvas-assistant,
#canvas-app.assistant-collapsed #resizer-assistant {
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

#canvas-app.editor-fullscreen {
  grid-template-columns: 0 0 minmax(520px, 1fr) 0 0 0;
}

#canvas-app.editor-fullscreen .canvas-files,
#canvas-app.editor-fullscreen .pane-resizer,
#canvas-app.editor-fullscreen .right-rail,
#canvas-app.editor-fullscreen .canvas-assistant {
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.ca-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.assistant-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.ca-header h2 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.icon-btn {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  background: transparent;
  border: 0;
  color: var(--text-secondary);
  border-radius: 6px;
}

.icon-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.model-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.model-row .field-label {
  margin: 0;
  flex-shrink: 0;
}

.model-row select {
  flex: 1;
  min-width: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 0.78rem;
}

.model-row select:focus {
  outline: none;
  border-color: var(--accent);
}

.cheat-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 10px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.cheat-card strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.cheat-card ul {
  margin: 0;
  padding-left: 18px;
}

.cheat-card li + li {
  margin-top: 3px;
}

.mode-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mode-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 0.76rem;
}

.mode-btn:hover {
  color: var(--text-primary);
}

.mode-btn.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-hover);
  font-weight: 600;
}

.ca-log {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ca-hint,
.ca-error {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ca-error {
  color: #ff7b72;
}

.msg {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.88rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.msg.user {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  align-self: flex-end;
  max-width: 90%;
}

.msg.assistant {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.ca-compose {
  border-top: 1px solid var(--border);
  padding: 12px;
}

.ctx-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

#chat-input {
  width: 100%;
  height: 70px;
  resize: vertical;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 0.86rem;
}

#chat-input:focus {
  outline: none;
  border-color: var(--accent);
}

.ca-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.ca-buttons button {
  margin: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 0.76rem;
}

.ca-buttons button:hover:not(:disabled) {
  color: var(--text-primary);
}

.ca-buttons button:disabled {
  opacity: 0.5;
  cursor: default;
}

#send-btn {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-hover);
  font-weight: 600;
}

#mic-btn.listening {
  background: #e5484d;
  border-color: #e5484d;
  color: #fff;
  animation: mic-pulse 1.2s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(229,72,77,0.5); }
  50% { box-shadow: 0 0 0 5px rgba(229,72,77,0); }
}

@media (max-width: 1180px) {
  #canvas-app {
    grid-template-columns: 280px 6px minmax(430px, 1fr) 6px 44px 360px;
  }
}

@media (max-width: 900px) {
  .canvas-body {
    overflow: auto;
  }

  #canvas-app,
  #canvas-app.assistant-collapsed {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: auto;
  }

  .canvas-files {
    max-height: 42vh;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .pane-resizer {
    display: none;
  }

  .canvas-editor {
    min-height: 72vh;
  }

  .right-rail {
    flex-direction: row;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .rail-btn {
    width: 56px;
    height: 48px;
    border-bottom: 0;
    border-right: 1px solid var(--border);
  }

  .rail-bottom {
    margin-top: 0;
    margin-left: auto;
    border-top: 0;
  }

  .canvas-assistant {
    min-height: 420px;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  #canvas-app.assistant-collapsed .canvas-assistant {
    display: none;
  }

  .ce-foot {
    height: auto;
    min-height: 46px;
    flex-wrap: wrap;
    padding: 8px 12px;
  }

  .foot-actions {
    flex-wrap: wrap;
  }

  #editor {
    min-height: 56vh;
  }
}