/* ─── Toolbar.css ─────────────────────────────────────────────────────────
   Co-located styles for Toolbar and its subcomponents.
   Plain CSS (no modules). All classes use kebab-case.
   ──────────────────────────────────────────────────────────────────────── */

/* Disabled state for quick-access undo / redo buttons */

.ribbon-quick-btn-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ===== Ribbon Toolbar ===== */

.ribbon-toolbar {
  display: flex;
  flex-direction: column;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border);
  user-select: none;
}

/* Quick Access Bar (top row - title bar) */

.ribbon-quick-access {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 30px;
  padding: 0 8px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
}

.ribbon-quick-left,
.ribbon-quick-right {
  display: flex;
  align-items: center;
  gap: 2px;
}

.ribbon-quick-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ribbon-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  white-space: nowrap;
}

/* Printer status pill shown next to the app title in printer workspace */

.ribbon-printer-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 18px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
}

.ribbon-printer-pill.is-connected {
  border-color: color-mix(in srgb, #22c55e 40%, var(--border));
  background: color-mix(in srgb, #22c55e 10%, var(--bg-elevated));
  color: var(--text-secondary);
}

.ribbon-printer-pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--text-muted);
}

.ribbon-printer-pill.is-connected .ribbon-printer-pill__dot {
  background: #22c55e;
}

.ribbon-printer-pill__name {
  font-weight: 650;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ribbon-printer-pill__status {
  font-weight: 500;
  color: var(--text-muted);
  text-transform: capitalize;
  padding-left: 3px;
  border-left: 1px solid var(--border-light);
}

.ribbon-quick-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 24px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s;
}

.ribbon-quick-btn:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.quick-ai-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.quick-ai-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.quick-ai-toggle.active {
  border-color: var(--success);
  background: rgba(76, 175, 80, 0.1);
  color: var(--success);
}

.ribbon-quick-btn.connected {
  color: var(--success);
}

.ribbon-quick-btn.has-alert {
  color: var(--accent);
  position: relative;
}

.quick-alert-dot {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--bg-secondary);
}

.quick-popover-root {
  position: relative;
  display: flex;
}

.quick-popover {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 9999;
  width: min(360px, calc(100vw - 24px));
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.34);
  padding: 8px;
}

.quick-popover.is-hidden {
  display: none;
}

.quick-popover-title {
  padding: 4px 4px 9px;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
}

.settings-interval-select,
.settings-wide-select,
.settings-api-key {
  appearance: none;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-primary);
  font-size: 11px;
  padding: 4px 7px;
  cursor: pointer;
  outline: none;
}

.settings-wide-select,
.settings-api-key {
  width: 100%;
}

.settings-api-key {
  cursor: text;
}

.settings-interval-select:focus,
.settings-wide-select:focus,
.settings-api-key:focus {
  border-color: var(--accent);
}

.global-settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.52);
}

.global-settings-modal {
  display: flex;
  flex-direction: column;
  width: min(820px, calc(100vw - 48px));
  max-height: min(720px, calc(100vh - 48px));
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-secondary);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36), 0 4px 16px rgba(0, 0, 0, 0.14);
}

.global-settings-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-toolbar);
}

.global-settings-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  flex-shrink: 0;
}

.global-settings-title {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
}

.global-settings-subtitle {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 11px;
}

.global-settings-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-left: auto;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

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

.global-settings-body {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  min-height: 430px;
  overflow: auto;
}

.global-settings-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 10px;
  border-right: 1px solid var(--border-light);
  background: var(--bg-primary);
}

.global-settings-nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 34px;
  padding: 0 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  text-align: left;
}

.global-settings-nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.global-settings-nav-item.active {
  background: var(--accent);
  color: #fff;
}

.global-settings-content {
  overflow: auto;
  padding: 18px 20px 20px;
}

.global-settings-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.global-settings-section-title {
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.global-settings-section-copy {
  max-width: 560px;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}

.global-settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.global-settings-action,
.global-settings-field {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 12px;
}

.global-settings-action {
  cursor: pointer;
  text-align: left;
}

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

.global-settings-field {
  align-items: stretch;
  flex-direction: column;
}

.global-settings-field.inline {
  align-items: center;
  flex-direction: row;
  justify-content: space-between;
}

.global-settings-field.full {
  grid-column: 1 / -1;
}

.global-settings-field > span {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 700;
}

.profile-sync-resolved-url,
.profile-sync-status {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 11px;
  overflow-wrap: anywhere;
}

.profile-sync-resolved-url {
  display: block;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input);
}

@media (max-width: 640px) {
  .global-settings-body {
    grid-template-columns: 1fr;
  }

  .global-settings-nav {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }

  .global-settings-nav-item {
    white-space: nowrap;
  }

  .global-settings-grid {
    grid-template-columns: 1fr;
  }
}

.quick-popover-action {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 32px;
  padding: 0 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
}

.quick-popover-action:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.ribbon-quick-divider {
  width: 1px;
  height: 14px;
  background: var(--border-light);
  margin: 0 4px;
}

/* ── File menu ── */

.file-menu-root {
  position: relative;
}

.file-menu-btn {
  display: flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: background 0.12s, color 0.12s;
}

.file-menu-btn:hover,
.file-menu-btn.open {
  background: var(--accent);
  color: #fff;
}

.file-menu-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 9999;
  min-width: 200px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 5px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.28);
  padding: 4px 0;
}

.file-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 7px 14px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
}

.file-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.file-menu-shortcut {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
}

.file-menu-separator {
  height: 1px;
  background: var(--border-light);
  margin: 3px 0;
}

/* ── New-document confirmation modal ── */

.new-doc-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.new-doc-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  padding: 24px 28px 20px;
  min-width: 340px;
  max-width: 420px;
}

.new-doc-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.new-doc-body {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.new-doc-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.new-doc-btn {
  padding: 6px 16px;
  border-radius: 4px;
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.12s;
}

.new-doc-btn:hover { opacity: 0.85; }

.new-doc-btn-save {
  background: var(--accent);
  color: #fff;
}

.new-doc-btn-discard {
  background: #c0392b;
  color: #fff;
}

.new-doc-btn-cancel {
  background: var(--bg-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ── Save Design modal ── */

.save-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.32), 0 4px 16px rgba(0,0,0,0.10);
  width: 440px;
  max-width: calc(100vw - 32px);
  overflow: hidden;
}

.save-modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-light);
}

.save-modal-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  flex-shrink: 0;
}

.save-modal-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  flex: 1;
}

.save-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

.save-modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.save-modal-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.save-modal-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.save-modal-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.save-modal-input-row {
  display: flex;
  align-items: stretch;
}

.save-modal-input {
  flex: 1;
  padding: 8px 10px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 5px 0 0 5px;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s;
  min-width: 0;
}

.save-modal-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0,120,215,0.12);
}

.save-modal-ext {
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 0 5px 5px 0;
  white-space: nowrap;
  user-select: none;
}

.save-modal-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.save-modal-hint-warn {
  color: #f59e0b;
}

.save-modal-info {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 10px 13px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
}

.save-modal-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.save-modal-info-label {
  color: var(--text-muted);
}

.save-modal-info-value {
  color: var(--text-secondary);
  font-weight: 500;
}

.save-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-toolbar);
}

.save-modal-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  border-radius: 5px;
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.12s, background 0.12s;
}

.save-modal-btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.save-modal-btn-cancel {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.save-modal-btn-cancel:hover {
  background: var(--bg-hover);
}

.save-modal-btn-save {
  background: var(--accent);
  color: #fff;
}

.save-modal-btn-save:hover {
  opacity: 0.88;
}

/* ── Auto-save toggle ── */

.autosave-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 24px;
  padding: 0 6px;
  border: none;
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  transition: background 0.12s;
}

.autosave-toggle:hover {
  background: var(--bg-hover);
}

.autosave-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  user-select: none;
}

.autosave-on .autosave-label {
  color: var(--success, #4caf50);
}

.autosave-track {
  position: relative;
  width: 24px;
  height: 12px;
  border-radius: 6px;
  background: rgba(128, 128, 128, 0.35);
  transition: background 0.2s;
  flex-shrink: 0;
}

.autosave-on .autosave-track {
  background: var(--success, #4caf50);
}

.autosave-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.autosave-on .autosave-thumb {
  transform: translateX(12px);
}

/* ── Save modal — overwrite confirmation ── */

.save-modal-overwrite-msg {
  font-size: 12px;
  color: var(--text-secondary);
  margin-right: auto;
}

.save-modal-overwrite-msg strong {
  color: var(--text-primary);
}

.save-modal-btn-overwrite {
  background: #c0392b;
  color: #fff;
}

.save-modal-btn-overwrite:hover {
  opacity: 0.88;
}

/* ── Workspace Selector + Tab Row ── */

.ribbon-tab-row {
  display: flex;
  align-items: stretch;
  height: 30px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
}

.ribbon-workspace-selector {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 4px;
}

.ribbon-workspace-btn {
  display: flex;
  align-items: center;
  padding: 4px 12px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-primary);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background 0.12s;
}

.ribbon-workspace-btn:hover {
  background: var(--bg-hover);
}

.ribbon-workspace-dropdown {
  position: absolute;
  top: 100%;
  left: 4px;
  z-index: 1000;
  min-width: 160px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.ribbon-workspace-option {
  display: block;
  width: 100%;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
}

.ribbon-workspace-option:hover {
  background: var(--bg-hover);
}

.ribbon-workspace-option.active {
  color: var(--accent);
  font-weight: 600;
}

.ribbon-tab-divider-v {
  width: 1px;
  background: var(--border-light);
  margin: 4px 0;
}

/* Tab Bar */

.ribbon-tabs {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0 4px;
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.ribbon-tab {
  padding: 4px 14px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  cursor: pointer;
  transition: all 0.15s;
  height: 100%;
  display: flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
}

.ribbon-tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.ribbon-tab.active {
  color: var(--tab-color, var(--accent));
  border-bottom-color: var(--tab-color, var(--accent));
}

.ribbon-tab.contextual {
  color: var(--success);
  border-bottom-color: var(--success);
  background: rgba(76, 175, 80, 0.06);
  font-weight: 700;
}

.ribbon-sketch-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding-right: 8px;
}

.ribbon-sketch-indicator span {
  font-size: 11px;
  color: var(--success);
  font-weight: 600;
}

.ribbon-finish-btn,
.ribbon-cancel-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 3px 10px;
  border: none;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.12s;
}

.ribbon-finish-btn {
  background: rgba(76, 175, 80, 0.12);
  color: var(--success);
}

.ribbon-finish-btn:hover {
  background: rgba(76, 175, 80, 0.24);
}

.ribbon-cancel-btn {
  background: rgba(244, 67, 54, 0.08);
  color: var(--error);
}

.ribbon-cancel-btn:hover {
  background: rgba(244, 67, 54, 0.2);
}

/* Ribbon Content Area (icon groups) */

.ribbon-content {
  display: flex;
  align-items: stretch;
  padding: 4px 8px;
  min-height: 76px;
  background: var(--bg-toolbar);
  gap: 0;
  overflow: hidden;
  flex-wrap: nowrap;
}

/* Ribbon Section (labeled group) */

.ribbon-section {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-light);
  padding: 0 8px;
  flex-shrink: 0;
  position: relative;
}

.ribbon-section:last-child {
  border-right: none;
}

.ribbon-section-content {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  padding-bottom: 2px;
}

.ribbon-section-label {
  font-size: 9px;
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
  padding: 2px 0;
  border-top: 1px solid var(--border-light);
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}

/* Ribbon Buttons */

.ribbon-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 3px 7px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.12s ease;
  min-width: 44px;
  height: 52px;  /* compact default — works for sketch mode */
  position: relative;
}

/* Large variant — used in non-sketch tabs for bigger primary tools */

.ribbon-button.large {
  min-width: 52px;
  height: 60px;
}

.ribbon-button:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.ribbon-button.active {
  background: var(--bg-active);
  border-color: var(--accent);
  color: var(--accent);
  animation: ribbon-tool-active-pulse 1.4s ease-in-out infinite;
}

@keyframes ribbon-tool-active-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 120, 215, 0.28);
    transform: translateY(0);
  }
  50% {
    box-shadow: 0 0 0 4px rgba(0, 120, 215, 0.08);
    transform: translateY(-1px);
  }
}

.ribbon-button.disabled {
  opacity: 0.3;
  pointer-events: none;
}

.ribbon-button-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 26px;
}

.ribbon-button.large .ribbon-button-icon {
  height: 32px;
}

/* Icon color classes (Fusion 360 colorful icons) */

.icon-blue { color: #0078d7; }

.icon-orange { color: #ff6b00; }

.icon-green { color: #4caf50; }

.icon-purple { color: #7b1fa2; }

.icon-teal { color: #00897b; }

.icon-red { color: #f44336; }

.icon-gray { color: #757575; }

/* Active state overrides icon color to accent */

.ribbon-button.active .ribbon-button-icon {
  color: var(--accent);
}

.ribbon-button-label {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
  line-height: 1.1;
  text-align: center;
  color: var(--text-secondary);
}

.ribbon-button.active .ribbon-button-label {
  color: var(--accent);
}

@media (prefers-reduced-motion: reduce) {
  .ribbon-button.active {
    animation: none;
  }
}

.ribbon-dropdown-arrow {
  position: absolute;
  bottom: 2px;
  right: 2px;
  color: var(--text-muted);
  cursor: pointer;
}

.ribbon-dropdown-arrow:hover {
  color: var(--text-secondary);
}

/* Stacked buttons (2 small buttons vertically) */

.ribbon-stack {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ribbon-stack .ribbon-button {
  height: 28px;
  min-width: 76px;
  flex-direction: row;
  gap: 5px;
  padding: 2px 8px;
  justify-content: flex-start;
}

.ribbon-stack .ribbon-button-icon {
  height: 18px;
}

.ribbon-stack .ribbon-button-label {
  font-size: 9px;
}

/* Dropdown Menu */

.ribbon-dropdown-menu {
  position: fixed;
  z-index: 10000;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.ribbon-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 14px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
}

.ribbon-dropdown-item:hover {
  background: var(--bg-hover);
}

.ribbon-dropdown-item--divider {
  border-top: 1px solid var(--border);
  margin-top: 2px;
  color: var(--accent);
}

.ribbon-dropdown-item-icon {
  display: flex;
  align-items: center;
  color: var(--accent);
}

/* ===== Flyout Section Menus (Fusion 360 style) ===== */

.ribbon-section-label.flyout-trigger {
  cursor: pointer;
  user-select: none;
  border-radius: 2px;
  transition: background 0.15s, color 0.15s;
  padding: 2px 6px;
}

.ribbon-section-label.flyout-trigger:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.ribbon-section-label.flyout-open {
  border-radius: 2px 2px 0 0;
}

.flyout-menu {
  position: fixed;
  z-index: 10000;
  min-width: 260px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 0 6px 6px 6px;
  padding: 4px 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.08);
}

.flyout-menu-separator {
  height: 1px;
  background: var(--border-light);
  margin: 4px 8px;
}

.flyout-menu-item-wrapper {
  position: relative;
}

.flyout-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
  white-space: nowrap;
}

.flyout-menu-item:hover {
  background: #cce5ff;
}

[data-theme="dark"] .flyout-menu-item:hover {
  background: rgba(100, 160, 255, 0.15);
}

.flyout-menu-item.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.flyout-menu-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

.flyout-menu-item-label {
  flex: 1;
  min-width: 0;
}

.flyout-menu-item-shortcut {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 24px;
  font-family: system-ui, -apple-system, sans-serif;
  opacity: 0.7;
}

.flyout-menu-item-arrow {
  color: var(--text-muted);
  margin-left: 8px;
  flex-shrink: 0;
}

.flyout-menu-item-check {
  color: var(--accent);
  margin-left: 8px;
  flex-shrink: 0;
}

/* Overflow "..." button shown inside section content when buttons are hidden */

.ribbon-overflow-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 52px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.ribbon-overflow-btn:hover,
.ribbon-overflow-btn.active {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

/* Sub-menu (appears to the right) */

.flyout-submenu {
  position: absolute;
  left: 100%;
  top: 0;
  z-index: 2001;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* ===== Sketch Ribbon — compact uniform 2-row grid ===== */

/*
  .sk-grid  — 2 rows, auto columns, fills left→right then wraps to row 2
  Each button: horizontal (icon left, label right), 26px tall
  Result: two tidy rows that fit cleanly in the ribbon height
*/

.sk-grid {
  display: grid;
  grid-template-rows: 1fr 1fr;
  grid-auto-flow: column;
  gap: 1px;
  align-items: center;
}

/* Single-column variant for CONFIGURE / INSPECT / INSERT / SELECT */

.sk-grid.sk-grid-1col {
  grid-template-rows: repeat(2, 26px);
  grid-auto-columns: 1fr;
}

/* Override ribbon-button sizing inside sk-grid */

.sk-grid .ribbon-button {
  height: 26px;
  min-width: 80px;
  flex-direction: row;
  justify-content: flex-start;
  gap: 5px;
  padding: 0 8px;
  border-radius: 3px;
}

.sk-grid .ribbon-button-icon {
  height: 16px;
  width: 16px;
  flex-shrink: 0;
}

.sk-grid .ribbon-button-label {
  font-size: 9.5px;
  text-transform: none;
  letter-spacing: 0;
  text-align: left;
}

/* Ensure the sketch ribbon section content aligns to center vertically */

.sketch-ribbon .ribbon-section-content {
  align-items: center;
  padding: 0;
}

/* Sketch ribbon doesn't need the padding-top that normal ribbon has */

.sketch-ribbon {
  padding-top: 2px;
  padding-bottom: 0;
}

/* Sections wrapper — takes all space except the FINISH SKETCH button */

.sketch-sections-wrapper {
  display: flex;
  align-items: stretch;
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
}

/* FINISH SKETCH / CANCEL area — fixed at right edge of toolbar */

.sketch-finish-area {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  padding: 0 8px 0 12px;
  align-self: stretch;
  border-left: 1px solid var(--border-light);
}

.sketch-finish-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  height: 42px;
  background: rgba(76, 175, 80, 0.12);
  color: var(--success, #4caf50);
  border: 1.5px solid rgba(76, 175, 80, 0.35);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.sketch-finish-btn:hover {
  background: rgba(76, 175, 80, 0.22);
  border-color: rgba(76, 175, 80, 0.6);
}

.sketch-finish-chevron {
  opacity: 0.6;
}

.sketch-cancel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

.sketch-cancel-btn:hover {
  background: rgba(244, 67, 54, 0.12);
  color: #f44336;
  border-color: rgba(244, 67, 54, 0.3);
}
.update-panel {
  width: 100%;
  color: var(--text-secondary);
  font-size: 12px;
}

.update-panel-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  overflow: hidden;
}

.update-panel-card--alert {
  border-color: var(--accent);
}

.update-panel-header,
.update-panel-row,
.update-panel-actions,
.update-panel-token {
  padding: 10px 12px;
}

.update-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
}

.update-panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-primary);
}

.update-panel-close {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.update-panel-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.update-panel-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  border-bottom: 1px solid var(--border-light);
}

.update-panel-label {
  color: var(--text-muted);
}

.update-panel-value {
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.update-panel-value.strong {
  color: var(--text-primary);
  font-weight: 600;
}

.update-panel-token {
  display: grid;
  gap: 7px;
  border-bottom: 1px solid var(--border-light);
}

.update-panel-token input {
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 0 9px;
}

.update-panel-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.update-panel-actions button {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-hover);
  color: var(--text-secondary);
  cursor: pointer;
}

.update-panel-actions button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.update-panel-actions button:disabled {
  opacity: 0.55;
  cursor: default;
}

.update-panel-message {
  padding: 10px 12px;
  color: var(--text-muted);
  line-height: 1.35;
}
.app-help-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.5);
}

.app-help-modal {
  display: flex;
  flex-direction: column;
  width: min(980px, calc(100vw - 48px));
  height: min(760px, calc(100vh - 48px));
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
  overflow: hidden;
}

.app-help-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-light);
}

.app-help-title {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.app-help-title h2 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
}

.app-help-title p {
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.35;
}

.app-help-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.app-help-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.app-help-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 18px;
  padding: 0 10px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-primary);
  color: var(--text-muted);
}

.app-help-search input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
}

.app-help-body {
  display: grid;
  grid-template-columns: 290px 1fr;
  min-height: 0;
  flex: 1;
  border-top: 1px solid var(--border-light);
}

.app-help-nav {
  min-height: 0;
  overflow: auto;
  padding: 10px;
  border-right: 1px solid var(--border-light);
  background: var(--bg-primary);
}

.app-help-topic-btn {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
}

.app-help-topic-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.app-help-topic-btn.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--text-primary);
}

.app-help-topic-btn span {
  font-size: 13px;
  font-weight: 700;
}

.app-help-topic-btn small {
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.35;
}

.app-help-group {
  margin-bottom: 2px;
}

.app-help-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 7px 10px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.app-help-group-header:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.app-help-group-header.open {
  color: var(--text-secondary);
}

.app-help-group-chevron {
  flex-shrink: 0;
  opacity: 0.6;
  transition: transform 0.18s ease;
}

.app-help-group-header:not(.open) .app-help-group-chevron {
  transform: rotate(-90deg);
}

.app-help-group-items {
  padding-left: 6px;
}

.app-help-empty {
  padding: 12px;
  color: var(--text-muted);
  font-size: 12px;
}

.app-help-content {
  min-height: 0;
  overflow: auto;
  padding: 20px 24px 28px;
}

.app-help-content h3 {
  margin: 0 0 6px;
  font-size: 22px;
}

.app-help-summary {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.45;
}

.app-help-section {
  margin: 0 0 22px;
}

.app-help-section h4 {
  margin: 0 0 8px;
  color: var(--text-primary);
  font-size: 14px;
}

.app-help-section ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.app-help-section li {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.app-help-intro {
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}

.app-help-notes {
  margin-top: 10px;
}

.app-help-note {
  margin: 0 0 6px;
  padding: 8px 12px;
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

/* Guided tutorials --------------------------------------------------------- */
.app-help-tutorials {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.app-help-tutorial {
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-primary);
  overflow: hidden;
}

.app-help-tutorial__header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 9px;
  align-items: start;
  padding: 12px;
  border-bottom: 1px solid var(--border-light);
}

.app-help-tutorial__header svg {
  color: var(--accent);
  margin-top: 1px;
}

.app-help-tutorial__header h4,
.app-help-tutorial__header p {
  margin: 0;
}

.app-help-tutorial__header h4 {
  font-size: 13px;
  color: var(--text-primary);
}

.app-help-tutorial__header p {
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.45;
}

.app-help-tutorial__header span {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
}

.app-help-tutorial__steps {
  display: grid;
}

.app-help-tutorial__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-secondary);
  padding: 9px 12px;
  text-align: left;
  cursor: pointer;
  font-size: 12.5px;
  line-height: 1.45;
}

.app-help-tutorial__step:last-child {
  border-bottom: 0;
}

.app-help-tutorial__step:hover {
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

.app-help-tutorial__step svg {
  margin-top: 1px;
  color: var(--text-muted);
}

.app-help-tutorial__step.is-done {
  color: var(--text-primary);
}

.app-help-tutorial__step.is-done svg {
  color: var(--accent);
}

/* Screenshots / figures ---------------------------------------------------- */
.app-help-figure {
  margin: 0 0 12px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-primary);
}

.app-help-img {
  display: block;
  width: 100%;
  height: auto;
}

.app-help-caption {
  padding: 6px 10px;
  color: var(--text-muted);
  font-size: 11px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

/* Keyboard-shortcut table -------------------------------------------------- */
.app-help-shortcuts {
  width: 100%;
  border-collapse: collapse;
  margin: 4px 0 0;
  font-size: 13px;
}

.app-help-shortcuts thead th {
  padding: 6px 10px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-light);
}

.app-help-shortcuts tbody tr {
  transition: background 0.15s ease;
}

.app-help-shortcuts tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.app-help-shortcuts td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  vertical-align: middle;
}

.app-help-shortcuts td:first-child {
  width: 1%;
  white-space: nowrap;
}

.app-help-shortcuts kbd {
  display: inline-block;
  padding: 2px 8px;
  min-width: 18px;
  text-align: center;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
}

.app-help-kbd-sep {
  margin: 0 4px;
  color: var(--text-muted);
  font-size: 11px;
}

@media (max-width: 760px) {
  .app-help-overlay {
    padding: 10px;
  }

  .app-help-modal {
    width: calc(100vw - 20px);
    height: calc(100vh - 20px);
  }

  .app-help-body {
    grid-template-columns: 1fr;
  }

  .app-help-nav {
    display: flex;
    gap: 6px;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }

  .app-help-topic-btn {
    min-width: 180px;
  }
}
.mcp-status-wrap {
  position: relative;
  display: inline-flex;
}

.mcp-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 20px;
  padding: 0 6px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-hover);
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.mcp-status-badge.active {
  color: var(--success);
}

.mcp-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.mcp-icon-button {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.mcp-icon-button:hover {
  background: var(--bg-primary);
}

.mcp-copied {
  color: var(--text-muted);
  text-transform: none;
}

.mcp-audit-popover {
  position: absolute;
  right: 0;
  top: 24px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  width: 240px;
  max-height: 220px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  color: var(--text-primary);
  text-transform: none;
}

.mcp-audit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 700;
}

.mcp-audit-list {
  display: flex;
  flex-direction: column;
  overflow: auto;
}

.mcp-audit-empty {
  padding: 10px 8px;
  color: var(--text-muted);
  font-size: 11px;
}

.mcp-audit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 10px;
}

.mcp-audit-row.ok {
  color: var(--success);
}

.mcp-audit-row.error,
.mcp-audit-row.timeout,
.mcp-audit-row.rate-limited {
  color: var(--danger, #ef5350);
}
/* ===== Timeline Panel (Browser) ===== */
.timeline-panel {
  width: var(--timeline-width, 260px);
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
}

.timeline-header h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.feature-count {
  font-size: 11px;
  color: var(--text-muted);
}

.timeline-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px;
  scrollbar-color:
    color-mix(in srgb, var(--border) 72%, var(--accent))
    var(--bg-toolbar);
  scrollbar-width: thin;
}

.timeline-list::-webkit-scrollbar {
  width: 10px;
}

.timeline-list::-webkit-scrollbar-track {
  background: var(--bg-toolbar);
}

.timeline-list::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--border) 72%, var(--accent));
  border: 2px solid var(--bg-toolbar);
  border-radius: 999px;
  background-clip: padding-box;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.timeline-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

.timeline-item.selected {
  background: var(--bg-active);
  border-color: var(--accent);
}

.timeline-item.rolled-back {
  opacity: 0.4;
}

.timeline-item.indented {
  padding-left: 20px;
}

.timeline-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent-light);
  color: var(--accent);
  flex-shrink: 0;
}

.timeline-item-info {
  flex: 1;
  min-width: 0;
}

.timeline-item-name {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-item-type {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: capitalize;
}

.timeline-item-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.timeline-item:hover .timeline-item-actions {
  opacity: 1;
}

.timeline-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.timeline-action-btn.danger:hover {
  background: rgba(244, 67, 54, 0.1);
  color: var(--error);
}

.timeline-empty {
  padding: 24px 16px;
  text-align: center;
}

.timeline-empty p {
  margin: 4px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.timeline-hint {
  font-size: 11px !important;
  color: var(--text-muted) !important;
  opacity: 0.7;
}

/* ===== Timeline — Group Headers, Context Menu, Banners ===== */

.timeline-group-header {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 6px;
  background: var(--surface-2, #2a2a2a);
  border-radius: 4px;
  margin-bottom: 2px;
  cursor: pointer;
  user-select: none;
}

.timeline-group-header__accent {
  color: var(--accent, #5b9bd5);
  flex-shrink: 0;
}

.timeline-group-header__name {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
}

.timeline-group-header__input {
  flex: 1;
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--accent, #5b9bd5);
  border-radius: 2px;
  color: inherit;
  padding: 0 3px;
}

.timeline-group-header__btn {
  padding: 1px 3px;
}

.timeline-context-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
}

.timeline-context-menu {
  position: fixed;
  background: var(--surface-2, #2a2a2a);
  border: 1px solid var(--border, #444);
  border-radius: 4px;
  z-index: 1000;
  min-width: 150px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  padding: 4px 0;
}

.timeline-context-menu {
  min-width: 180px;
}

.timeline-context-menu__btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 12px;
  background: none;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  color: var(--text-secondary, #aaa);
  font-size: 12px;
  text-align: left;
  transition: background 0.1s, color 0.1s;
}

.timeline-context-menu__btn:hover {
  background: var(--bg-hover, rgba(255,255,255,0.07));
  color: var(--text-primary, #fff);
}

.timeline-context-menu__btn.danger {
  color: var(--error, #f44336);
}

.timeline-context-menu__btn.danger:hover {
  background: rgba(244, 67, 54, 0.1);
}

.timeline-context-menu__sep {
  height: 1px;
  background: var(--border-light, rgba(255,255,255,0.07));
  margin: 3px 8px;
}

.timeline-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
}

.timeline-banner--direct-modeling {
  background: #4a3800;
  color: #ffb300;
  border-bottom: 1px solid #7a5e00;
}

.timeline-banner--base-feature {
  background: #7c5c00;
  color: #ffd966;
  border-bottom: 1px solid #a07800;
}

.timeline-banner__label {
  flex: 1;
}

.timeline-banner__finish-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #ffd966;
  color: #3a2c00;
  border: none;
  border-radius: 3px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.timeline-header__controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-action-btn--small {
  font-size: 11px;
  padding: 2px 6px;
}

/* TL-1: Step-navigation controls */
.timeline-nav {
  display: flex;
  align-items: center;
  gap: 1px;
}

.timeline-nav__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-secondary);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.1s ease;
}

.timeline-nav__btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--text-primary);
}

.timeline-nav__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.timeline-nav__icon--flip {
  transform: scaleX(-1);
}

/* CTX-12: Move to Group submenu */
.timeline-submenu-container {
  position: relative;
}

.timeline-context-submenu {
  position: absolute;
  left: 100%;
  top: 0;
  background: var(--surface-2, #2a2a2a);
  border: 1px solid var(--border, #444);
  border-radius: 4px;
  z-index: 1001;
  min-width: 150px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  padding: 4px 0;
}

.timeline-drop-target {
  height: 6px;
  border-radius: 3px;
  background: transparent;
  transition: background 120ms;
}

.timeline-drop-target.active {
  background: var(--accent);
}
/* ===== ComponentTree — extracted static styles ===== */

/* Active sketch icon in SketchesFolder — was style={{ color: 'var(--warning)' }} inline */
.ct-sketch-active-icon {
  color: var(--warning);
}
/* ===== Component Tree (Browser) ===== */
.component-tree-panel {
  width: 260px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tree-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
}

.tree-panel-header h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tree-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 4px;
}

.tree-node {
  padding-left: calc(var(--depth, 0) * 12px);
}

.tree-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.12s ease;
  border: 1px solid transparent;
  font-size: 12px;
  color: var(--text-secondary);
  min-height: 28px;
}

.tree-item:hover {
  background: var(--bg-hover);
}

.tree-item.active,
.component-item.active {
  background: var(--bg-active);
  border-color: var(--accent);
}

.tree-item.selected {
  background: var(--bg-active);
  border-color: var(--accent);
}

.tree-expand {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.tree-expand:hover {
  color: var(--text-secondary);
}

.tree-expand-spacer {
  width: 12px;
}

.component-color-bar {
  width: 3px;
  height: 14px;
  border-radius: 2px;
  flex-shrink: 0;
}

.tree-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-rename-input {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--accent);
  border-radius: 3px;
  color: var(--text-primary);
  font-size: 12px;
  padding: 2px 6px;
  outline: none;
}

.tree-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.body-icon { color: var(--accent); }

.grounded-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.tree-item-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.12s;
}

.tree-item:hover .tree-item-actions {
  opacity: 1;
}

.tree-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.tree-action:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

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

.body-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--border);
  cursor: pointer;
}

.body-color-dot:hover {
  border-color: var(--text-muted);
}

.construction-name {
  color: var(--text-muted);
  font-style: italic;
}

.origin-item {
  opacity: 0.5;
  font-size: 11px;
}

.origin-icon {
  color: var(--text-muted);
}

.origin-name {
  color: var(--text-muted);
  font-size: 11px;
}

.joint-type-badge {
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 3px;
  background: rgba(255, 152, 0, 0.08);
  color: var(--warning);
  text-transform: uppercase;
}

.tree-origin-group {
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 2px;
  padding-bottom: 2px;
}

/* CORR-15: Origin child entities (point, axes, planes) */
.origin-entity {
  padding-left: 20px !important;
  cursor: default;
}

/* Context menu */
.tree-context-menu {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
  margin: 2px 0 2px 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 10;
}

.tree-context-menu button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 10px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
}

.tree-context-menu button:hover {
  background: var(--bg-hover);
}

.tree-context-menu button.danger:hover {
  background: rgba(244, 67, 54, 0.08);
  color: var(--error);
}

/* Material picker */
.material-picker {
  margin: 4px 0 4px 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.material-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.material-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.material-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 4px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: all 0.12s;
}

.material-swatch:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

.swatch-color {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.swatch-label {
  font-size: 9px;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60px;
}

/* ===== Browser Panel — Fusion 360-style rows ===== */
.origin-tree-node,
.sketches-tree-node {
  margin: 1px 0;
}

/* Every browser row: eye btn | chevron | icon | label */
.browser-row {
  display: flex;
  align-items: center;
  height: 26px;
  padding-right: 6px;
  cursor: pointer;
  border-radius: 3px;
  user-select: none;
  transition: background 0.1s;
}

.browser-row:hover {
  background: var(--bg-hover);
}

.browser-row.selected {
  background: var(--bg-active);
  border-color: var(--accent);
}

.browser-row-child {
  padding-left: 14px; /* indent children */
}

.browser-vis-btn,
.browser-chevron,
.browser-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.browser-vis-btn {
  width: 18px;
  height: 20px;
  border: 0;
  padding: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.browser-vis-btn:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.browser-chevron {
  width: 12px;
  color: var(--text-muted);
}

.browser-item-icon {
  width: 16px;
  color: var(--text-muted);
}

.browser-item-label {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 20px;
}

/* Active sketch row highlight */
.browser-row-active-sketch {
  background: rgba(41, 121, 255, 0.12);
}
.browser-row-active-sketch:hover {
  background: rgba(41, 121, 255, 0.2);
}
.browser-sketch-active-label {
  color: var(--accent);
  font-weight: 600;
}
/* ===== Status Bar ===== */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  height: 28px;
  font-size: 11px;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-message {
  color: var(--text-muted);
}

.status-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-badge {
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--bg-hover);
  color: var(--text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.status-badge.active {
  background: rgba(76, 175, 80, 0.1);
  color: var(--success);
}

.status-badge.sketch-badge {
  background: rgba(255, 152, 0, 0.1);
  color: var(--warning);
}

.status-units {
  padding: 2px 4px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-primary);
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  outline: none;
}

.status-units:focus {
  border-color: var(--accent);
}
/* Panel shell */
.ai-panel {
  position: fixed;
  z-index: 220;
  display: flex;
  flex-direction: column;
  min-width: 360px;
  min-height: 380px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-primary);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.34), 0 2px 10px rgba(0, 0, 0, 0.16);
  color: var(--text-primary);
  font-size: 12px;
}

.ai-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 6px 8px 6px 10px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-toolbar);
  flex-shrink: 0;
}

.ai-panel-drag-region {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  flex: 1;
  align-self: stretch;
  cursor: move;
  user-select: none;
}

.ai-panel-icon {
  color: var(--accent);
  flex-shrink: 0;
}

.ai-panel-title {
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.ai-panel-grip {
  color: var(--text-muted);
  opacity: 0.65;
}

.ai-panel-tabs {
  display: flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border-light);
  border-radius: 5px;
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.ai-tab-btn {
  min-width: 52px;
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  transition: background 0.12s, color 0.12s;
}

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

.ai-tab-btn.active {
  background: var(--accent);
  color: #fff;
}

.ai-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.ai-panel-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.ai-panel-resize {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 18px;
  height: 18px;
  padding: 0;
  border: none;
  background: linear-gradient(135deg, transparent 0 48%, var(--border) 49% 56%, transparent 57% 100%);
  cursor: nwse-resize;
  opacity: 0.8;
}

.ai-panel-resize:hover {
  opacity: 1;
}

/* Shared content */
.ai-tab-content {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding: 12px;
}

.ai-section-label {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.ai-hint {
  margin: 0;
  color: var(--text-muted);
  font-size: 10px;
  line-height: 1.55;
}

.ai-error {
  padding: 7px 9px;
  border: 1px solid rgba(239, 83, 80, 0.3);
  border-radius: 5px;
  background: rgba(239, 83, 80, 0.1);
  color: var(--danger, #ef5350);
  font-size: 10px;
}

/* MCP tab */
.ai-mcp-status {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 10px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
}

.ai-mcp-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.ai-mcp-dot.ai-mcp-dot-on {
  background: var(--success);
  box-shadow: 0 0 4px var(--success);
}

.ai-mcp-port {
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 400;
}

.ai-code-block {
  position: relative;
  padding: 10px 64px 10px 10px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-secondary);
}

.ai-code-block pre {
  margin: 0;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 10px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}

.ai-code-actions {
  position: absolute;
  top: 7px;
  right: 7px;
  display: flex;
  gap: 4px;
}

.ai-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 5px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
}

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

.ai-copied-label {
  color: var(--success);
  font-size: 10px;
}

.ai-audit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.ai-collapse-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 0;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.ai-collapse-btn:hover {
  color: var(--text-secondary);
}

.ai-audit-list {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-light);
  border-radius: 5px;
}

.ai-audit-empty {
  padding: 9px 10px;
  color: var(--text-muted);
  font-size: 10px;
}

.ai-audit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  border-bottom: 1px solid var(--border-light);
  font-size: 10px;
}

.ai-audit-row:last-child {
  border-bottom: none;
}

.ai-audit-ok {
  color: var(--success);
}

.ai-audit-error,
.ai-audit-timeout,
.ai-audit-rate-limited {
  color: var(--danger, #ef5350);
}

.ai-audit-queued {
  color: var(--text-muted);
}

.ai-audit-tool {
  font-weight: 600;
}

.ai-audit-status {
  font-size: 9px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* Settings section */
.ai-settings {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.ai-settings-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 9px 0 4px;
}

.ai-field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 28px;
}

.ai-field-label {
  min-width: 120px;
  color: var(--text-secondary);
  font-size: 11px;
  white-space: nowrap;
  flex-shrink: 0;
}

.ai-select,
.ai-input {
  flex: 1;
  min-width: 0;
  padding: 5px 7px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  outline: none;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 11px;
}

.ai-select:focus,
.ai-input:focus {
  border-color: var(--accent);
}

/* Chat tab */
.ai-chat-root {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.ai-messages {
  display: flex;
  min-height: 120px;
  flex: 1;
  flex-direction: column;
  gap: 9px;
  overflow-y: auto;
  padding: 12px;
  background: var(--bg-primary);
}

.ai-empty {
  display: flex;
  max-width: 300px;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: auto;
  padding: 28px 18px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
}

.ai-msg {
  max-width: min(88%, 520px);
  border-radius: 7px;
  font-size: 11px;
  line-height: 1.55;
}

.ai-msg-user {
  align-self: flex-end;
  padding: 7px 10px;
  background: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.14);
  color: #fff;
}

.ai-msg-assistant {
  align-self: flex-start;
  padding: 7px 10px;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.ai-msg-error {
  border-color: rgba(239, 83, 80, 0.4);
  background: rgba(239, 83, 80, 0.08);
  color: var(--danger, #ef5350);
}

.ai-msg-thinking {
  color: var(--text-muted);
  font-style: italic;
}

.ai-msg-tool {
  display: flex;
  max-width: 100%;
  flex-direction: column;
  gap: 2px;
  align-self: flex-start;
  padding: 5px 9px;
  border: 1px solid var(--border-light);
  border-left: 2px solid var(--accent);
  border-radius: 4px;
  background: var(--bg-elevated);
  font-size: 10px;
}

.ai-msg-tool-name {
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.ai-msg-tool-result {
  max-height: 80px;
  overflow-y: auto;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 9px;
  white-space: pre-wrap;
  word-break: break-all;
}

.ai-diagnosis {
  gap: 7px;
  width: min(100%, 520px);
  padding: 8px 10px;
}

.ai-diagnosis-summary {
  color: var(--text-primary);
  font-size: 11px;
}

.ai-diagnosis-causes,
.ai-diagnosis-actions,
.ai-diagnosis-tweaks {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.ai-diagnosis-cause {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 7px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.ai-diagnosis-actions span {
  color: var(--text-muted);
  font-size: 10px;
}

.ai-diagnosis-tweak,
.ai-quick-action {
  min-height: 26px;
  padding: 5px 8px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
}

.ai-diagnosis-tweak:hover:not(:disabled),
.ai-quick-action:hover:not(:disabled) {
  background: var(--bg-hover);
}

.ai-diagnosis-tweak:disabled,
.ai-quick-action:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.ai-msg-content {
  white-space: pre-wrap;
}

.ai-quick-actions {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
  align-items: center;
}

.ai-context-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.ai-context-toggle input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
}

.ai-context-toggle:hover {
  color: var(--text-primary);
}

.ai-input-row {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 10px 12px 12px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.ai-textarea {
  min-width: 0;
  flex: 1;
  resize: none;
  padding: 8px 9px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  outline: none;
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 11px;
  line-height: 1.4;
  transition: border-color 0.12s;
}

.ai-textarea:focus {
  border-color: var(--accent);
}

.ai-textarea:disabled {
  opacity: 0.4;
}

.ai-input-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background 0.12s;
}

.ai-send-btn:hover:not(:disabled) {
  background: var(--accent-hover);
}

.ai-send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.ai-stop-btn {
  background: var(--danger, #ef5350);
}

.ai-stop-btn:hover {
  background: #c62828;
}

.ai-clear-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 20px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

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

/* Claude Code mode hint */
.ai-claude-code-hint {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 16px;
  color: var(--text-secondary);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
}

.ai-cc-icon {
  color: var(--accent);
}
/* ===== CSS Custom Properties (defaults - overridden by themeStore) ===== */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-toolbar: #fafafa;
  --bg-panel: #ffffff;
  --bg-canvas: #e8e8e8;
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-active: rgba(0, 120, 215, 0.08);
  --text-primary: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #888888;
  --border: #d0d0d0;
  --border-light: #e5e5e5;
  --accent: #0078d7;
  --accent-hover: #006abf;
  --accent-light: rgba(0, 120, 215, 0.1);
  --tab-solid: #ff6b00;
  --tab-surface: #4caf50;
  --tab-mesh: #7b1fa2;
  --tab-form: #e65100;
--tab-manage: #757575;
  --tab-utilities: #546e7a;
  --tab-prepare: #0288d1;
  --tab-printer: #43a047;
  --success: #4caf50;
  --warning: #ff9800;
  --error: #f44336;
  --info: #2196f3;
  /* Width of the right-hand Timeline sidebar. Single-sourced so the
     side-docked tool dialogs can reserve it and never overlap it. */
  --timeline-width: 260px;
}

/* ===== Layout ===== */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

.app--home {
  display: block;
  height: auto;
  min-height: 100vh;
  overflow: auto;
  background: #f7f4ef;
}

.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.viewport-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-canvas);
}


/* ===== Shared Dialog & Button Styles ===== */
/* ===== Dialogs ===== */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.dialog-overlay.edge-pick-dialog {
  background: transparent;
  backdrop-filter: none;
  pointer-events: none;
}

.dialog-overlay.edge-pick-dialog .dialog {
  pointer-events: auto;
}

.dialog {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-width: 380px;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.dialog-header h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.dialog-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.dialog-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.dialog-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
}

/* ===================================================================
 * Fusion 360-style tool dialogs (SCOPED — opt-in only).
 * Applied via the .tool-dialog-scope wrapper in ActiveDialog.tsx to
 * ONLY design-page feature/modeling tool dialogs (the ones that need
 * live viewport face/edge picking). Visually matches the Sketch
 * Palette (.sketch-palette): 240px, right edge, vertically centered,
 * accent-dot header, light shadow, no backdrop, click-through overlay.
 * Every other site dialog (BOM, Export, configs, assembly/management
 * forms, libraries) keeps the centered-modal rules above.
 * Do NOT widen this scope without explicit user intent.
 * =================================================================== */
.tool-dialog-scope { display: contents; }

/* Full-screen, non-interactive layer (the base .dialog-overlay is
   position:fixed and ActiveDialog mounts OUTSIDE .viewport-container,
   so this overlay spans the whole window). It parks the panel on the
   right edge, vertically centered, but reserves the Timeline sidebar
   width on the right so the dialog lands exactly 12px to the LEFT of
   the timeline — the same spot as .sketch-palette inside the viewport,
   never overlapping the timeline or any right-docked panel.
   Clicks pass through to the viewport. */
.tool-dialog-scope .dialog-overlay {
  background: transparent;
  align-items: center;
  justify-content: flex-end;
  padding: 12px calc(var(--timeline-width, 260px) + 12px) 12px 12px;
  backdrop-filter: none;
  pointer-events: none;
}

/* Panel chrome mirrors .sketch-palette exactly. */
.tool-dialog-scope .dialog {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  width: 240px;
  min-width: 240px;
  max-width: 240px;
  max-height: calc(100vh - 24px);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  font-size: 12px;
  overflow: hidden;
  backdrop-filter: none;
}

.tool-dialog-scope .dialog-header {
  flex: 0 0 auto;
  gap: 6px;
  padding: 8px 10px;
  background: var(--bg-toolbar);
}

/* Accent dot before the title — same as .sketch-palette-dot. */
.tool-dialog-scope .dialog-header h3 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.tool-dialog-scope .dialog-header h3::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}

.tool-dialog-scope .dialog-close {
  width: 18px;
  height: 18px;
  border-radius: 3px;
}

.tool-dialog-scope .dialog-body {
  flex: 1 1 auto;
  padding: 8px 10px;
  gap: 10px;
  font-size: 12px;
  overflow: auto;
}

.tool-dialog-scope .dialog-footer {
  flex: 0 0 auto;
  padding: 8px 10px;
  gap: 6px;
}

.tool-dialog-scope .dialog-footer .btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
}


/* ===== Shared Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.12s ease;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-color: var(--border);
}

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

.btn-danger {
  background: rgba(244, 67, 54, 0.1);
  color: var(--error);
  border-color: rgba(244, 67, 54, 0.3);
}

.btn-danger:hover {
  background: rgba(244, 67, 54, 0.2);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
}

.btn--full-width {
  width: 100%;
}

/* ===== Icon Utilities ===== */
.icon-blue { color: #0078d7; }
.icon-orange { color: #ff6b00; }
.icon-green { color: #4caf50; }
.icon-purple { color: #7b1fa2; }
.icon-teal { color: #00897b; }
.icon-red { color: #f44336; }
.icon-gray { color: #757575; }

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

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

.icon-btn.danger:hover {
  background: rgba(244, 67, 54, 0.1);
  color: var(--error);
}

/* ===== Checkbox ===== */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label.indent {
  margin-left: 24px;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
}

/* ===== Measure Select ===== */
.measure-select {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  cursor: pointer;
  outline: none;
}

/* ===== Advanced Toggle ===== */
.advanced-toggle {
  width: 100%;
  text-align: center;
  font-size: 12px;
}

/* ===== Banner ===== */
.banner {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
}

.banner.success {
  background: rgba(76, 175, 80, 0.06);
  color: var(--success);
  border: 1px solid rgba(76, 175, 80, 0.15);
}

.banner.error {
  background: rgba(244, 67, 54, 0.06);
  color: var(--error);
  border: 1px solid rgba(244, 67, 54, 0.15);
}

.banner.info {
  background: var(--accent-light);
  color: var(--text-muted);
  border: 1px solid var(--border-light);
}

/* ===== Context Menu (Sketch + Body right-click) ===== */
.sketch-ctx-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9998;
}

.sketch-ctx-menu {
  position: fixed;
  z-index: 9999;
  background: var(--bg-panel, #1e2128);
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  padding: 4px;
  min-width: 240px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  font-size: 12px;
}

.sketch-ctx-item {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 5px 10px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: background 0.1s;
  gap: 8px;
}

.sketch-ctx-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sketch-ctx-item.danger {
  color: var(--error, #f44336);
}

.sketch-ctx-item.danger:hover {
  background: rgba(244, 67, 54, 0.1);
}

.sketch-ctx-icon {
  display: flex;
  align-items: center;
  width: 18px;
  flex-shrink: 0;
  color: var(--text-dim);
}

.sketch-ctx-label {
  flex: 1;
}

.sketch-ctx-shortcut {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: auto;
}

.sketch-ctx-sep {
  height: 1px;
  background: var(--border-light, rgba(255, 255, 255, 0.07));
  margin: 3px 6px;
}

.sketch-ctx-item.disabled,
.sketch-ctx-item:disabled {
  opacity: 0.38;
  cursor: default;
  pointer-events: none;
}

/* ── Context menu inline opacity slider (CTX-7) ── */
.ctx-opacity-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 6px 28px;
}

.ctx-opacity-slider {
  flex: 1;
  height: 4px;
  accent-color: var(--accent);
  cursor: pointer;
}

.ctx-opacity-value {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 30px;
  text-align: right;
}

/* ── Active/toggled context menu item ── */
.sketch-ctx-item.active {
  background: var(--bg-active, rgba(91, 155, 213, 0.12));
  color: var(--accent);
}

.sketch-ctx-item.toggled-on .sketch-ctx-icon {
  color: var(--accent);
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body, #root {
  width: 100%;
  height: 100%;
  scrollbar-color:
    color-mix(in srgb, var(--border, #d0d0d0) 72%, var(--accent, #0078d7))
    var(--bg-toolbar, #fafafa);
  scrollbar-width: thin;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #0d0d1a;
  color: #e0e0e0;
}

canvas {
  outline: none;
  user-select: none;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-toolbar, #fafafa);
}

::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--border, #d0d0d0) 72%, var(--accent, #0078d7));
  border: 2px solid var(--bg-toolbar, #fafafa);
  border-radius: 999px;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent, #0078d7);
}

::-webkit-scrollbar-corner {
  background: var(--bg-toolbar, #fafafa);
}

::selection {
  background: rgba(80, 120, 255, 0.3);
}

html[data-reduced-motion] *,
html[data-reduced-motion] *::before,
html[data-reduced-motion] *::after {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  scroll-behavior: auto !important;
  transition-duration: 0.001ms !important;
}

html[data-touch] {
  --touch-target-min: 44px;
}

html[data-touch] button,
html[data-touch] input,
html[data-touch] select,
html[data-touch] textarea,
html[data-touch] [role="button"],
html[data-touch] [role="checkbox"],
html[data-touch] [role="switch"] {
  min-height: var(--touch-target-min);
}

html[data-touch] .ribbon-quick-btn,
html[data-touch] .file-menu-btn,
html[data-touch] .file-menu-item,
html[data-touch] .global-settings-action,
html[data-touch] .quick-ai-toggle {
  min-height: var(--touch-target-min);
}

html[data-high-contrast] {
  --bg-hover: color-mix(in srgb, var(--accent) 24%, transparent);
  --bg-active: color-mix(in srgb, var(--accent) 34%, transparent);
  --border: color-mix(in srgb, var(--text-primary) 55%, transparent);
  --border-light: color-mix(in srgb, var(--text-primary) 34%, transparent);
  --border-strong: var(--text-primary);
  --focus-ring: #ffd84d;
}

html[data-high-contrast] button:focus-visible,
html[data-high-contrast] input:focus-visible,
html[data-high-contrast] select:focus-visible,
html[data-high-contrast] textarea:focus-visible,
html[data-high-contrast] [tabindex]:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}