/* ─── Custom Properties ──────────────────────────────────────────────────── */
:root {
  --accent:          #FACC15;
  --bg-elevated: #FFFFFF;
  --accent-hover:    #EAB308;
  --accent-glow:     rgba(250, 204, 21, 0.4);
  --accent-soft:     rgba(250, 204, 21, 0.08);

  --bg-page:         #FFFFFF;
  --bg-surface:      #F8FAFC;
  --bg-canvas:       #f2f2f2;

  --text-primary:    #000000;
  --text-secondary:  #334155;
  --text-muted:      #64748B;
  --text-canvas:     #FFFFFF;

  --border-default:  #F1F5F9;
  --border-strong:   #E2E8F0;
  --border-focus:    #FACC15;

  --font-sans:   'Plus Jakarta Sans', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;

  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}

button { font-family: var(--font-sans); cursor: pointer; border: none; background: none; }
textarea, input { font-family: var(--font-sans); }

/* ─── App Header ─────────────────────────────────────────────────────────── */
.app-header {
  height: 40px;
  background: #1e2433;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  gap: 0;
  position: relative;
  z-index: 10;
}

/* Diagram title — absolutely centered in the header */
.header-center-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  pointer-events: auto;
}

/* Header left group: logo + title + nav */
.header-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* Spacer between left and right header groups */
.header-spacer {
  flex: 1;
}

/* Right spacer mirrors left for symmetric centering */
.header-spacer-right {
  flex: 1;
}

/* Center tool group — primary canvas tools live in the header */
.header-center {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Header right group: export + save + utilities */
.header-right {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

/* User tier badge in header */
.header-tier-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-right: 2px;
}
.header-tier-badge--starter {
  background: rgba(99, 179, 237, 0.15);
  color: #7dd3fc;
}
.header-tier-badge--professional {
  background: rgba(250, 204, 21, 0.18);
  color: #fde047;
}

/* User display name in header */
.header-username {
  font-size: 12px;
  font-weight: 600;
  color: rgba(226,232,240,0.6);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-right: 4px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 24px;
  height: 24px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  color: #000;
  letter-spacing: -0.04em;
}

.logo-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #e2e8f0;
}

.logo-name .accent { color: var(--accent); }

/* (header-center is the primary toolbar; legacy note removed) */
.header-diagram-title {
  font-size: 13px;
  font-weight: 700;
  color: #e2e8f0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  text-align: center;
  font-family: var(--font-sans);
  min-width: 180px;
  width: 300px;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: border-color 0.15s, background 0.15s;
  cursor: text;
}
.header-diagram-title:hover {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.06);
}
.header-diagram-title:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,0.08);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.80);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.hidden { display: none; }
.modal-dialog {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 540px;
  max-width: 95vw;
  max-height: 75vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
}
.modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.modal-body::-webkit-scrollbar { width: 5px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
.modal-body .diagrams-list {
  overflow: visible;
  max-height: none;
}

/* Modal search bar */
.modal-search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
  flex-shrink: 0;
}
.modal-search-bar svg { color: var(--text-muted); flex-shrink: 0; }
.modal-search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-sans);
}
.modal-search-input::placeholder { color: var(--text-muted); }
.diagrams-count {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-page);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  padding: 1px 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Remove legacy header-center and header-actions */
.header-actions { display: none; }

/* Icon Buttons */
.btn-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

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

/* Header export/action buttons — icon only */
.btn-header-action {
  width: 30px;
  padding: 0;
  gap: 0;
}

.btn-header-action .btn-label {
  display: none;
}

.btn-header-action.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #1E293B;
}

/* Shown on the Export/Publish Video triggers while a video job keeps
   recording/uploading in the background, so the user knows it's still
   running even after closing the modal that started it. */
.btn-header-action.video-job-running {
  position: relative;
  border-color: #FACC15;
  animation: videoJobPulse 1.4s ease-in-out infinite;
}

@keyframes videoJobPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.45); }
  50% { box-shadow: 0 0 0 4px rgba(250, 204, 21, 0); }
}

/* Dark header icon button overrides */
.app-header .btn-icon {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
  color: #cbd5e1;
}
.app-header .btn-icon:hover {
  border-color: var(--accent);
  background: rgba(250,204,21,0.12);
  color: var(--accent);
}
.app-header .btn-icon svg { stroke: currentColor; }


.header-sep {
  width: 1px;
  height: 20px;
  background: rgba(255,255,255,0.12);
  margin: 0 var(--space-1);
}

/* Export dropdown */
.export-dropdown {
  position: relative;
}

.export-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 200;
  min-width: 110px;
  overflow: hidden;
}

.export-dropdown-menu.open {
  display: block;
}

.export-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 7px 12px;
  font-size: 12px;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s, color 0.1s;
}

.export-dropdown-item:hover {
  background: var(--accent-soft);
  color: var(--text-primary);
}

.export-dropdown-sep {
  height: 1px;
  background: var(--border-subtle, #e5e7eb);
  margin: 3px 0;
}

/* View dropdown (Show Duration / Show First Pass Yield badges — multi-select) */
.view-dropdown {
  position: relative;
}

.view-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 200;
  min-width: 190px;
  overflow: hidden;
  padding: 4px 0;
}

.view-dropdown-menu.open {
  display: block;
}

.view-dropdown-title {
  padding: 6px 12px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-tertiary, #94A3B8);
}

.view-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 7px 12px;
  font-size: 12px;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s, color 0.1s;
}

.view-dropdown-item:hover {
  background: var(--accent-soft);
  color: var(--text-primary);
}

.view-dropdown-item input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.view-dropdown-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
  color: #fff;
}

.view-dropdown-item-icon-duration { background: rgba(30,41,59,0.88); }
.view-dropdown-item-icon-fpy { background: rgba(22,163,74,0.92); }

/* ── PNG Export Resolution Modal ──────────────────────────────────────────── */
.export-res-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 9100;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.export-res-dialog {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 400px;
  max-width: 95vw;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  overflow: hidden;
}
.export-res-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-default);
}
.export-res-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.export-res-body {
  padding: 16px;
}
.export-res-presets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.export-res-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 16px 8px 12px;
  background: var(--bg-canvas);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  font-family: var(--font-sans);
  text-align: center;
}
.export-res-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.export-res-card:active { transform: scale(0.97); }
.export-res-card.is-last {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.export-res-card-badge {
  position: absolute;
  top: -9px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 2px 7px;
  border-radius: 20px;
  white-space: nowrap;
  text-transform: uppercase;
}
.export-res-card-emoji {
  font-size: 22px;
  line-height: 1;
  margin-top: 2px;
}
.export-res-card-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2px;
}
.export-res-card-meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-top: 3px;
}
.export-res-dims {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}
.export-res-est {
  font-size: 10px;
  color: var(--text-muted);
}
.export-res-card-hint {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 3px;
}
.export-res-cap-note {
  margin: 10px 0 2px;
  padding: 7px 10px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 6px;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Watermark section inside Export PNG modal */
.export-watermark-section {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-default);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.export-watermark-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.export-watermark-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}
.export-watermark-toggle input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}
.export-watermark-input {
  width: 100%;
  padding: 6px 10px;
  font-size: 11px;
  border-radius: 6px;
  border: 1px solid var(--border-default);
  background: var(--bg-input, var(--bg-elevated));
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s;
  box-sizing: border-box;
}
.export-watermark-input:focus { border-color: var(--accent); }
.export-watermark-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ─── Diagram actions three-dot menu ────────────────────────────────────── */
.diag-actions-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1px;
}
.btn-diag-menu {
  padding: 4px 5px !important;
  min-width: 0 !important;
  color: var(--text-muted);
}
.btn-diag-menu:hover { color: var(--text-primary); }
.diag-actions-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  z-index: 800;
  min-width: 210px;
  overflow: hidden;
}
.diag-actions-menu.open { display: block; }
.diag-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 14px;
  font-size: 12.5px;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s, color 0.1s;
}
.diag-menu-item:hover {
  background: var(--accent-soft);
  color: var(--text-primary);
}
.diag-menu-item--danger { color: var(--color-danger, #ef4444); }
.diag-menu-item--danger:hover {
  background: #fef2f2;
  color: #dc2626;
}
.diag-menu-kbd {
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-page);
  border: 1px solid var(--border-default);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono, monospace);
  white-space: nowrap;
  flex-shrink: 0;
}
.diag-menu-sep {
  height: 1px;
  background: var(--border-default);
  margin: 3px 0;
}

/* ─── Hamburger menu (mobile nav drawer) ────────────────────────────────── */
#btn-hamburger { display: none; }

.hamburger-menu {
  display: none;
  position: fixed;
  top: 40px;
  left: 0;
  width: 230px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  z-index: 99999;
  overflow: hidden;
}
.hamburger-menu.open { display: block; }

.hamburger-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 16px;
  font-size: 13px;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.1s, color 0.1s;
}
.hamburger-item:hover {
  background: var(--accent-soft);
  color: var(--text-primary);
}
.hamburger-item--locked { opacity: 0.6; }
.hamburger-lock { margin-left: auto; font-size: 11px; }
.hamburger-sep {
  height: 1px;
  background: var(--border-subtle, #e5e7eb);
  margin: 3px 0;
}

/* Toolbar color picker */
.toolbar-color-picker {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: border-color 0.15s, color 0.15s;
}
.toolbar-color-picker:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}
.toolbar-color-picker input[type="color"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  border: none;
  padding: 0;
}

.toolbar-color-none {
  width: 22px !important;
  height: 28px;
  padding: 0 !important;
  font-size: 13px;
  margin-left: -6px;
  flex-shrink: 0;
}

/* ─── Workspace flex layout ──────────────────────────────────────────────── */
.workspace {
  display: flex;
  height: calc(100vh - 40px);
  height: calc(100dvh - 40px); /* dynamic viewport height — iOS URL bar aware */
  overflow: hidden;
  position: relative;
}

/* ─── Prompt Panel → Right Collapsible AI Sidebar (flex child, no overlap) ── */
.prompt-panel {
  position: relative;
  flex-shrink: 0;
  width: 300px;
  min-width: 28px;
  background: var(--bg-page);
  border-left: 1px solid var(--border-strong);
  display: flex;
  flex-direction: row;  /* tab strip on left, inner content on right */
  overflow: hidden;
  z-index: 30;
  box-shadow: -4px 0 24px rgba(0,0,0,0.10);
  transition: width 0.28s cubic-bezier(.4,0,.2,1);
}

.prompt-panel.collapsed {
  width: 28px;
}

/* Collapse tab — left-edge strip, always visible */
.ai-sidebar-tab {
  position: relative;
  flex-shrink: 0;
  align-self: stretch;
  width: 28px;
  background: var(--bg-page);
  border: none;
  border-right: 1px solid var(--border-strong);
  border-radius: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  color: var(--text-muted);
  z-index: 30;
  transition: background 0.15s, color 0.15s;
  padding: 0;
}
.ai-sidebar-tab:hover { background: var(--accent-soft); color: var(--text-primary); }
.ai-sidebar-tab svg { flex-shrink: 0; }
.ai-sidebar-tab-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  writing-mode: vertical-rl;
  text-transform: uppercase;
}
.prompt-panel.collapsed .ai-sidebar-tab svg { transform: rotate(180deg); }

.ai-sidebar-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

/* ─── (removed) Chat Panel Resize Handle — no longer needed ──────────────── */
.panel-resize-handle { display: none; }

.prompt-panel::-webkit-scrollbar { width: 4px; }
.prompt-panel::-webkit-scrollbar-track { background: transparent; }
.prompt-panel::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }
.prompt-panel::-webkit-scrollbar-thumb:hover { background: var(--accent); }

.panel-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.panel-header h2 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-header-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.panel-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  padding: 2px 8px;
  white-space: nowrap;
}

/* ─── Section Labels ─────────────────────────────────────────────────────── */
.section-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

/* ─── Diagrams Section ───────────────────────────────────────────────────── */
.diagrams-section {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
}

.diagrams-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: 200px;
  overflow-y: auto;
}

.diagrams-list::-webkit-scrollbar { width: 3px; }
.diagrams-list::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }

.diagram-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.diagram-item:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.diagram-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.diagram-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.diagram-item-date {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: var(--space-2);
}

.diagram-item-delete {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
  margin-left: var(--space-1);
}

.diagram-item:hover .diagram-item-delete { opacity: 1; }
.diagram-item-delete:hover { color: #EF4444; }

.empty-state {
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
  padding: var(--space-2) 0;
}

/* ─── Prompt Area ────────────────────────────────────────────────────────── */
.prompt-area {
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex: 1;
}

.prompt-textarea {
  width: 100%;
  min-height: 160px;
  padding: var(--space-3) 14px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.prompt-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(250, 204, 21, 0.1);
  background: var(--bg-page);
}

.prompt-textarea::placeholder { color: var(--text-muted); }

/* Example Chips */
.example-prompts { display: flex; flex-direction: column; gap: var(--space-2); }

.chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.example-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background: linear-gradient(135deg, var(--bg-surface), #F3F4F6);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s;
  cursor: pointer;
}

.example-chip:hover {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-soft), rgba(250, 204, 21, 0.12));
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(250, 204, 21, 0.15);
}

.example-chip:active {
  transform: translateY(0);
}


/* Generate Button */
.btn-generate {
  width: 100%;
  padding: 13px 24px;
  background: var(--accent);
  color: #000;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  box-shadow: 0 8px 30px var(--accent-glow);
  transition: background 0.15s, box-shadow 0.15s, transform 0.15s;
}

.btn-generate:hover {
  background: var(--accent-hover);
  box-shadow: 0 12px 40px rgba(250, 204, 21, 0.5);
  transform: translateY(-1px);
}

.btn-generate:active { transform: translateY(0); }

.btn-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Status */
.prompt-status {
  padding: var(--space-3) var(--space-6) var(--space-4);
  font-size: 12px;
  font-weight: 600;
  min-height: 36px;
  flex-shrink: 0;
}

.prompt-status.success { color: #22C55E; }
.prompt-status.error   { color: #EF4444; }
.prompt-status.info    { color: var(--text-muted); }

/* ─── Canvas Panel (Right, flex: 1) ─────────────────────────────────────── */
.canvas-panel {
  background: var(--bg-canvas);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex: 1;
  min-width: 0;
  position: relative; /* anchor for floating toolbar */
}

/* Canvas Context Toolbar — floating pill, only appears when nodes are selected */
.canvas-context-toolbar {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  transition: top 0.12s ease, left 0.12s ease;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  padding: 0 10px;
  gap: var(--space-3);
  height: 38px;
  white-space: nowrap;
  pointer-events: auto;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.canvas-context-toolbar.hidden { display: none !important; }

.canvas-zoom-toolbar {
  position: absolute;
  right: 12px;
  bottom: 74px;
  z-index: 22;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border-radius: 14px;
  background: rgba(255,255,255,0.96);
  border: 1px solid var(--border-strong);
  box-shadow: 0 4px 20px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: auto;
}

.canvas-zoom-level {
  height: 28px;
  min-width: 54px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-page);
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: center;
  line-height: 26px;
}

.canvas-zoom-level:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

#group-tools {
  position: relative;
}

.toolbar-align-wrap {
  position: relative;
}

.btn-group-trigger {
  width: auto;
  min-width: 42px;
  padding: 0 7px;
  gap: 4px;
}

.btn-align-trigger {
  width: auto;
  min-width: 42px;
  padding: 0 7px;
  gap: 4px;
}

.btn-group-caret {
  opacity: 0.8;
  transition: transform 0.12s ease;
}

.btn-group-trigger.active .btn-group-caret {
  transform: rotate(180deg);
}

.group-menu {
  position: fixed;
  min-width: 132px;
  padding: 6px;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.14), 0 2px 8px rgba(0,0,0,0.08);
  z-index: 10050;
}

.group-menu.hidden {
  display: none !important;
}

.group-menu-item {
  width: 100%;
  height: 30px;
  border: 0;
  background: transparent;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-align: left;
}

.group-menu-item:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.group-menu-item-icon {
  font-size: 13px;
  line-height: 1;
}

.text-align-menu {
  min-width: 148px;
}

.btn-tool {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.1s, box-shadow 0.15s;
  cursor: pointer;
}

.btn-tool:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(99,102,241,0.15);
}

.btn-tool.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 2px 6px rgba(99,102,241,0.35);
}

.btn-tool-ai {
  color: var(--accent);
  border-color: rgba(99,102,241,0.35);
}
.btn-tool-ai:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 3px 8px rgba(99,102,241,0.3);
  transform: translateY(-1px);
}
.btn-tool-ai:active {
  background: var(--accent-dark, #4f46e5);
  transform: translateY(0);
}

.btn-tool-danger {
  color: #F87171;
  border-color: rgba(239,68,68,0.3);
}
.btn-tool-danger:hover {
  border-color: #EF4444;
  background: rgba(239,68,68,0.1);
  color: #EF4444;
  box-shadow: 0 3px 8px rgba(239,68,68,0.2);
  transform: translateY(-1px);
}
.btn-tool-danger:active {
  background: rgba(239,68,68,0.18);
  transform: translateY(0);
}

/* Action buttons (Templates + Save) — wider with label */
.btn-action-secondary,
.btn-action-primary {
  width: auto;
  padding: 0 12px;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: 0.02em;
  height: 30px;
  border-radius: 20px;
}

.btn-action-secondary {
  border-color: var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-secondary);
}
.btn-action-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(99,102,241,0.15);
}

.btn-action-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}
.btn-action-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.35);
}
.btn-action-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-header-primary {
  display: flex; align-items: center; gap: 5px;
  padding: 0 12px; height: 30px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #e2e8f0; font-size: 12px; font-weight: 600; cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  white-space: nowrap;
}
.btn-header-primary:hover {
  border-color: var(--accent);
  background: rgba(250,204,21,0.12);
  color: var(--accent);
}
.btn-header-primary:active { transform: translateY(0); box-shadow: none; }

.toolbar-actions {
  gap: 6px;
}

.toolbar-info {
  margin-left: 8px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  padding: 2px 10px;
}

.toolbar-sep { color: var(--border-strong); }

/* Canvas Container */
.canvas-container {
  flex: 1;
  min-width: 0;
  min-height: 0;
  height: 100%; /* ensure percentage-height children (konva) measure correctly */
  position: relative;
  overflow: hidden;
}

/* ─── Canvas Body (canvas + palette sidebar row) ─────────────────────────── */
.canvas-body {
  display: flex;
  flex: 1;
  min-height: 0; /* required so flex:1 collapses correctly in a column parent */
  overflow: hidden;
  position: relative;
}

/* ─── Palette Left Bar (flex panel, does not overlap canvas) ─────────────── */
.palette-float-left {
  position: relative;
  flex-shrink: 0;
  align-self: stretch;
  margin: 8px 0 8px 8px;
  width: 36px;   /* thin strip by default */
  z-index: 15;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.22s cubic-bezier(.4,0,.2,1);
}

/* Expand on hover or when pinned open */
.palette-float-left:hover,
.palette-float-left.pinned {
  width: 80px;
}

/* Was .collapsed, now unused — kept for compat */
.palette-float-left.collapsed {
  width: 36px;
}

.palette-float-header {
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px 0 10px;
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg-page);
  flex-shrink: 0;
  gap: 6px;
  border-radius: 12px 12px 0 0;
}

/* Title visible only when expanded */
.palette-float-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 5px;
  flex: 1;
  min-width: 0;
  opacity: 0;
  transition: opacity 0.2s;
}

.palette-float-left:hover .palette-float-title,
.palette-float-left.pinned .palette-float-title {
  opacity: 1;
}

/* collapsed class kept for compat */
.palette-float-left.collapsed .palette-float-title {
  opacity: 0;
  pointer-events: none;
}

.palette-float-toggle {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.palette-float-toggle:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--text-primary);
}

.palette-float-toggle svg { transition: transform 0.22s ease; }
/* Pinned = open; chevron flips to indicate click-to-unpin */
.palette-float-left.pinned .palette-float-toggle svg { transform: rotate(180deg); }
.palette-float-left.collapsed .palette-float-toggle svg { transform: rotate(180deg); }

.palette-float-left .palette-body {
  width: 100%;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  background: transparent;
  border: none;
  border-radius: 0 0 12px 12px;
  padding: 8px 6px 12px;
  box-shadow: none;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
  display: none; /* hidden by default (thin strip) */
}
/* Show body on hover or when pinned */
.palette-float-left:hover .palette-body,
.palette-float-left.pinned .palette-body {
  display: flex; /* restore flex so flex:1 + overflow-y:auto work correctly */
}
.palette-float-left.collapsed .palette-body { display: none; }

/* ─── Old palette-sidebar kept as alias ─────────────────────────────────── */
.palette-sidebar { display: block; } /* now used for header floatbar */

/* ─── Palette header hover floatbar ──────────────────────────────────────── */
.header-palette-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.header-palette-btn {
  width: 30px;
  height: 30px;
}

.palette-header-float {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 180px;
  max-height: 72vh;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.16), 0 2px 8px rgba(0,0,0,0.08);
  z-index: 300;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.header-palette-wrap:hover .palette-header-float {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.palette-header-float-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 9px 10px 7px;
  border-bottom: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

.palette-header-float .palette-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 6px 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.palette-header-float .palette-body::-webkit-scrollbar { width: 3px; }
.palette-header-float .palette-body::-webkit-scrollbar-track { background: transparent; }
.palette-header-float .palette-body::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }


/* ─── Toolbar number input (font size) ───────────────────────────────────── */
.toolbar-number-input {
  width: 52px;
  height: 28px;
  padding: 0 4px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-page);
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: center;
  outline: none;
}

.toolbar-number-input::-webkit-outer-spin-button,
.toolbar-number-input::-webkit-inner-spin-button {
  opacity: 0.6;
  height: 20px;
}

.toolbar-number-input:focus {
  border-color: var(--accent);
}

.toolbar-text-input {
  height: 28px;
  padding: 0 6px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-page);
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-sans);
  outline: none;
}
.toolbar-text-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(99,102,241,0.15);
}

#vsm-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Konva stage container */
.konva-stage-container {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}

.konva-stage-container canvas {
  display: block;
}

/* Empty State */
.canvas-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0.4;
}
.canvas-empty.hidden { display: none; }

/* Loading Overlay */
.canvas-loading {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  animation: fadeIn 0.2s ease;
}

.canvas-loading p {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(250, 204, 21, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.hidden { display: none !important; }

.metric-chip {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
}

.metric-chip.lead-time {
  background: rgba(239, 68, 68, 0.15);
  color: #FCA5A5;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.metric-chip.value-added {
  background: rgba(34, 197, 94, 0.15);
  color: #86EFAC;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.metric-chip.efficiency {
  background: rgba(250, 204, 21, 0.15);
  color: var(--accent);
  border: 1px solid rgba(250, 204, 21, 0.2);
}

.metric-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ─── Animations ─────────────────────────────────────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .workspace {
    /* single column — canvas fills full width */
  }
}

@media (max-width: 767px) {
  html, body { overflow: auto; }

  .workspace {
    height: auto;
    overflow: visible;
  }

  .prompt-panel {
    position: fixed;
    right: 0;
    top: 40px;
    height: calc(100vh - 40px);
    border-right: none;
    border-bottom: 1px solid var(--border-default);
  }
  .prompt-panel.collapsed { width: 28px; }

  .diagrams-list { max-height: 120px; }
}

/* ─── Diagram Type Selector ──────────────────────────────────────────────── */
.diagram-type-select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s;
}

.diagram-type-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(250, 204, 21, 0.1);
}

/* ─── Configuration Panel ────────────────────────────────────────────────── */
.config-panel {
  position: fixed;
  right: -350px;
  top: 40px;
  width: 350px;
  height: calc(100vh - 40px);
  background: linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 100%);
  border-left: 1px solid var(--border-strong);
  box-shadow: -8px 0 32px rgba(15, 23, 42, 0.15), -4px 0 16px rgba(250, 204, 21, 0.08);
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 50;
  overflow: hidden;
}

.config-panel.open {
  right: 0;
  box-shadow: -12px 0 48px rgba(15, 23, 42, 0.2), -8px 0 24px rgba(250, 204, 21, 0.12);
}

.config-panel .panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem var(--space-6);
  background: linear-gradient(90deg, #FFFFFF 0%, #F3F4F6 100%);
  border-bottom: 1px solid var(--border-strong);
  position: relative;
}

.config-panel .panel-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.config-panel .panel-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.config-panel .panel-header h3::before {
  content: '⚙';
  opacity: 0.6;
  font-size: 18px;
}

.btn-close {
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(250, 204, 21, 0.08);
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-close:hover {
  background: var(--accent);
  color: #000;
  transform: scale(1.05);
}

.config-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.config-content::-webkit-scrollbar {
  width: 6px;
}

.config-content::-webkit-scrollbar-track {
  background: transparent;
}

.config-content::-webkit-scrollbar-thumb {
  background: rgba(250, 204, 21, 0.3);
  border-radius: 3px;
}

.config-content::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.config-content .empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
  font-size: 13px;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── Configuration Form ─────────────────────────────────────────────────── */
.config-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 12px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: #FFFFFF;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  transition: all 0.2s;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
  font-family: var(--font-mono);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft), inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.input-disabled {
  background: #F3F4F6;
  color: var(--text-muted);
  cursor: not-allowed;
  border-color: var(--border-default);
}

.node-id-display {
  background: #F3F4F6;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  border: 1px solid var(--border-default);
  word-break: break-all;
}

/* ── Note / Code TipTap editor (Node / Connector / Lane config panels) ── */
.note-editor-wrap {
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #FFFFFF;
}

.note-editor-toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px 8px;
  background: #F8FAFC;
  border-bottom: 1px solid var(--border-default);
}

.note-editor-toolbar button {
  min-width: 26px;
  height: 26px;
  padding: 0 6px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s;
}

.note-editor-toolbar button:hover {
  background: var(--accent-soft, #FEF9C3);
}

.note-toolbar-sep {
  width: 1px;
  height: 18px;
  background: var(--border-default);
  margin: 0 4px;
}

.note-editor-content {
  min-height: 90px;
  max-height: 220px;
  overflow-y: auto;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text-primary);
}

.note-editor-prose {
  outline: none;
  min-height: 70px;
}

.note-editor-prose p { margin: 0 0 6px; }
.note-editor-prose p:last-child { margin-bottom: 0; }
.note-editor-prose ul, .note-editor-prose ol { margin: 0 0 6px; padding-left: 20px; }
.note-editor-prose code {
  background: #F1F5F9;
  color: #DB2777;
  padding: 1px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.note-editor-prose pre {
  background: #0F172A;
  color: #E2E8F0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 0 0 6px;
}
.note-editor-prose pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* ── Canvas hover tooltip for Note/Code content ── */
.canvas-note-tooltip {
  position: fixed;
  z-index: 9999;
  max-width: 320px;
  max-height: 260px;
  overflow: auto;
  background: #1E293B;
  color: #F1F5F9;
  border-radius: var(--radius-md, 10px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28), 0 2px 8px rgba(0, 0, 0, 0.15);
  padding: 12px 14px;
  font-size: 12.5px;
  line-height: 1.5;
  font-family: var(--font-sans);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.canvas-note-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}

.canvas-note-tooltip::before {
  content: '📝';
  margin-right: 6px;
}

.canvas-note-tooltip p { margin: 0 0 6px; }
.canvas-note-tooltip p:last-child { margin-bottom: 0; }
.canvas-note-tooltip ul, .canvas-note-tooltip ol { margin: 0 0 6px; padding-left: 18px; }
.canvas-note-tooltip code {
  background: rgba(255, 255, 255, 0.12);
  color: #FDE68A;
  padding: 1px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}
.canvas-note-tooltip pre {
  background: rgba(0, 0, 0, 0.35);
  padding: 8px 10px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 0 0 6px;
}
.canvas-note-tooltip pre code { background: transparent; padding: 0; }

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-strong);
}

.form-actions-row {
  display: flex;
  gap: 10px;
}

.btn-primary,
.btn-secondary,
.btn-danger,
.btn-import {
  padding: 11px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-primary {
  flex: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #000;
  box-shadow: 0 4px 12px rgba(250, 204, 21, 0.2);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(250, 204, 21, 0.3);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  flex: 1;
  background: #FFFFFF;
  color: var(--text-primary);
  border: 1.5px solid var(--border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background: #F3F4F6;
  border-color: var(--text-primary);
}

.btn-danger {
  flex: 1;
  background: linear-gradient(135deg, #EF4444, #DC2626);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.3);
}

.btn-danger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-import {
  flex: 1;
  background: #FFFFFF;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-import:hover:not(:disabled) {
  background: var(--accent-soft);
}

#import-file {
  display: none;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .config-panel {
    width: 100%;
    right: -100%;
  }

  .workspace {
    flex-direction: column;
  }
}

/* ─── Canvas Improvements ────────────────────────────────────────────────── */
.konva-stage-container {
  cursor: default;
}

/* ─── Node Drag Feedback ─────────────────────────────────────────────────── */
.drag-hint {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(250, 204, 21, 0.95);
  color: #000;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  pointer-events: none;
  animation: slideUp 0.3s ease;
  z-index: 100;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ─── Selection Styles ───────────────────────────────────────────────────── */
.config-panel.open {
  animation: slideInRight 0.3s cubic-bezier(0.19, 1, 0.22, 1);
}

@keyframes slideInRight {
  from {
    right: -350px;
    opacity: 0;
  }
  to {
    right: 0;
    opacity: 1;
  }
}

/* ─── Enhanced Buttons ───────────────────────────────────────────────────── */
.btn-tool {
  transition: all 0.2s ease;
}

.btn-tool:hover {
  background: var(--accent);
  color: #000;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(250, 204, 21, 0.3);
}

.btn-tool.active {
  background: var(--accent);
  color: #000;
  box-shadow: 0 4px 12px rgba(250, 204, 21, 0.4);
}

/* ─── Smooth Transitions ─────────────────────────────────────────────────── */
* {
  transition: all 0.2s ease;
}

button, input, select, textarea {
  transition: all 0.2s ease;
}

/* ─── Loading State ──────────────────────────────────────────────────────── */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(250, 204, 21, 0.2);
  border-top-color: #FACC15;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Responsive Canvas ──────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  /* canvas-panel is already flex:1 full-width; nothing extra needed */
}

/* ─── Notification Toasts ───────────────────────────────────────────────── */
@keyframes toastSlideDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-16px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes toastSlideUp {
  from { opacity: 1; transform: translateX(-50%) translateY(0); }
  to   { opacity: 0; transform: translateX(-50%) translateY(-16px); }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
}

/* ─── Diagram List Styling ───────────────────────────────────────────────── */
.diagram-item {
  background: linear-gradient(135deg, #FFFFFF, #F8FAFC);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.diagram-item:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(250, 204, 21, 0.1);
  transform: translateX(2px);
}

.diagram-title {
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  word-break: break-word;
}

.diagram-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
}

.btn-delete-diagram {
  width: 28px;
  height: 28px;
  border: none;
  background: rgba(239, 68, 68, 0.1);
  color: #EF4444;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-delete-diagram:hover {
  background: #EF4444;
  color: white;
}

/* ─── Enhanced Input Focus States ────────────────────────────────────────── */
.form-group input:valid {
  border-color: #10B981;
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: #EF4444;
}

/* ─── Smooth Button Animations ──────────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-danger, .btn-import {
  position: relative;
  overflow: hidden;
}

.btn-primary::before,
.btn-secondary::before,
.btn-danger::before,
.btn-import::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}

.btn-primary:active::before,
.btn-secondary:active::before,
.btn-danger:active::before,
.btn-import:active::before {
  width: 200px;
  height: 200px;
}

/* ─── Responsive Config Panel ────────────────────────────────────────────– */
@media (max-width: 768px) {
  .config-panel {
    width: 100%;
    right: -100%;
  }

  .config-panel.open {
    right: 0;
  }

  .form-actions-row {
    flex-direction: column;
  }

  .btn-primary, .btn-secondary, .btn-danger, .btn-import {
    width: 100%;
  }
}

/* ─── Chat Panel Styling ─────────────────────────────────────────────────── */
.chat-panel {
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

.chat-message {
  display: flex;
  gap: var(--space-3);
  animation: slideUp 0.3s ease;
  max-width: 100%;
  position: relative;
}
.chat-message:hover .msg-copy-btn { opacity: 1; }

/* Copy HTML button — visible only on hover */
.msg-copy-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-default);
  background: var(--bg-primary, #fff);
  color: var(--text-muted);
  border-radius: 5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
  z-index: 2;
}
.msg-copy-btn:hover {
  background: var(--bg-subtle, #f1f5f9);
  color: var(--accent-dark, #0ea5e9);
  border-color: var(--accent, #facc15);
}

.chat-message.user {
  justify-content: flex-end;
}

.chat-message.user .message-content {
  background: #EFF6FF;
  color: #1e3a8a;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-md) var(--radius-sm) var(--radius-sm) var(--radius-md);
  font-weight: 500;
}

/* Keep user markdown-body readable */
.chat-message.user .message-content.markdown-body p { margin: 0.2em 0; }
.chat-message.user .message-content.markdown-body code {
  background: rgba(30,58,138,0.08);
  color: #1e3a8a;
  border-color: rgba(30,58,138,0.2);
}
.chat-message.user .message-content.markdown-body a {
  color: #2563EB;
}
.chat-message.user .message-content.markdown-body ul,
.chat-message.user .message-content.markdown-body ol {
  margin: 0.2em 0;
}

.chat-message.assistant {
  justify-content: flex-start;
}

.chat-message.assistant .message-content {
  background: #EEF2FF;
  border: 1px solid #C7D2FE;
  color: #1E1B4B;
  border-radius: var(--radius-sm) var(--radius-md) var(--radius-md) var(--radius-sm);
}

.chat-message.assistant .message-content.markdown-body h1,
.chat-message.assistant .message-content.markdown-body h2,
.chat-message.assistant .message-content.markdown-body h3,
.chat-message.assistant .message-content.markdown-body h4 {
  color: #1E1B4B;
}

.chat-message.assistant .message-content.markdown-body code {
  background: rgba(99,102,241,0.10);
  border-color: rgba(99,102,241,0.25);
  color: #4338CA;
}

.chat-message.assistant .message-content.markdown-body pre code {
  background: #F0F4FF;
  color: #1E1B4B;
}

.chat-message.assistant .message-content.markdown-body blockquote {
  background: rgba(99,102,241,0.07);
  color: #3730A3;
}

.chat-message.assistant .message-content.markdown-body th {
  background: rgba(99,102,241,0.12);
  color: #1E1B4B;
}

.chat-message.system {
  justify-content: center;
}

.chat-message.system .message-content {
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-style: italic;
  padding: var(--space-2) var(--space-3);
}

.message-content {
  padding: var(--space-2) var(--space-3);
  max-width: 88%;
  word-wrap: break-word;
  word-break: break-word;
  line-height: 1.45;
  font-size: 13px;
}

.message-loading {
  display: flex;
  gap: 4px;
  align-items: center;
}

.message-loading span {
  width: 8px;
  height: 8px;
  background: #333;
  border-radius: 50%;
  animation: bounce 1.4s infinite;
}

.message-loading span:nth-child(2) {
  animation-delay: 0.2s;
}

.message-loading span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes bounce {
  0%, 80%, 100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

/* ─── Markdown rendered content inside chat bubbles ─────────────────────── */
.message-content.markdown-body {
  padding: var(--space-2) var(--space-3);
  max-width: 88%;
  color: inherit;
}

.message-content.markdown-body > *:first-child { margin-top: 0; }
.message-content.markdown-body > *:last-child  { margin-bottom: 0; }

.message-content.markdown-body p {
  margin: 0 0 0.5em;
  line-height: 1.55;
}

.message-content.markdown-body h1,
.message-content.markdown-body h2,
.message-content.markdown-body h3,
.message-content.markdown-body h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  margin: 0.75em 0 0.35em;
  line-height: 1.25;
  color: var(--text-primary);
}
.message-content.markdown-body h1 { font-size: 1.1em; }
.message-content.markdown-body h2 { font-size: 1.0em; }
.message-content.markdown-body h3 { font-size: 0.95em; }
.message-content.markdown-body h4 { font-size: 0.9em; color: var(--text-secondary); }

.message-content.markdown-body ul,
.message-content.markdown-body ol {
  margin: 0.35em 0 0.5em;
  padding-left: 1.4em;
}
.message-content.markdown-body li {
  margin: 0.2em 0;
  line-height: 1.5;
}

.message-content.markdown-body strong { font-weight: 700; }
.message-content.markdown-body em     { font-style: italic; color: inherit; opacity: 0.85; }

.message-content.markdown-body a {
  color: #6366F1;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.message-content.markdown-body a:hover { opacity: 0.8; }

.message-content.markdown-body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.82em;
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  color: #6366F1;
}

.message-content.markdown-body pre {
  margin: 0.6em 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
}
.message-content.markdown-body pre code {
  display: block;
  padding: 0.75em 1em;
  font-size: 0.8em;
  background: #f6f8fa;
  color: inherit;
  border: none;
  border-radius: 0;
  overflow-x: auto;
  white-space: pre;
}

.message-content.markdown-body blockquote {
  border-left: 3px solid #6366F1;
  margin: 0.5em 0;
  padding: 0.25em 0.75em;
  background: rgba(99,102,241,0.04);
  border-radius: 0 6px 6px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.message-content.markdown-body table {
  border-collapse: collapse;
  font-size: 0.82em;
  margin: 0.5em 0;
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
}
.message-content.markdown-body th,
.message-content.markdown-body td {
  border: 1px solid var(--border-strong);
  padding: 0.35em 0.65em;
  text-align: left;
}
.message-content.markdown-body th {
  background: rgba(99,102,241,0.08);
  font-weight: 600;
  color: var(--text-primary);
}
.message-content.markdown-body tr:nth-child(even) td {
  background: rgba(0,0,0,0.02);
}

.message-content.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border-strong);
  margin: 0.6em 0;
}

/* ─── Chat Input Area ────────────────────────────────────────────────────── */
.chat-input-area {
  padding: var(--space-3);
  border-top: 1px solid var(--border-strong);
  background: var(--bg-surface);
}

/* ── TipTap editor wrapper (holds editor + send btn) ──── */
.chat-editor-wrapper {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
  background: var(--bg-page);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  transition: all 0.2s;
  padding: var(--space-2) var(--space-3);
}
.chat-editor-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(250,204,21,0.15);
}

/* ── TipTap mount point ───────────────────────────────── */
.chat-editor {
  flex: 1;
  overflow-y: auto;
  /* 2 lines for floating bar; overridden to full in sidebar */
  min-height: 42px;
  max-height: 100px;
}

/* ─── Floating AI Chat Bar (bottom center of canvas) ─────────────────────── */
.ai-chat-bar-float {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(640px, calc(100% - 120px));
  z-index: 20;
  background: var(--bg-page);
  border: 1.5px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
  pointer-events: auto;
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.ai-chat-bar-float:focus-within {
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(0,0,0,0.14), 0 0 0 3px rgba(250,204,21,0.18);
}

/* AI processing indicator bar */
.chat-processing-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px 4px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}
.chat-processing-dots {
  display: flex;
  align-items: center;
  gap: 3px;
}
.chat-processing-dots span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: processingBounce 1.2s ease-in-out infinite;
}
.chat-processing-dots span:nth-child(2) { animation-delay: 0.2s; }
.chat-processing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes processingBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40%           { transform: translateY(-4px); opacity: 1; }
}

/* toolbar row inside float bar */
.ai-chat-bar-float .chat-editor-wrapper {
  flex-direction: column;
  align-items: stretch;
  border: none;
  border-radius: 0;
  padding: 10px 12px 6px;
  background: var(--bg-page);
  min-height: 0;
  gap: 0;
}
.ai-chat-bar-float .chat-editor-wrapper:focus-within {
  box-shadow: none;
  border-color: transparent;
}
.ai-chat-bar-float .chat-editor {
  min-height: 36px;
  /* ~5 lines: 13px font × 1.5 line-height × 5 + padding */
  max-height: 112px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.ai-chat-bar-float .chat-editor::-webkit-scrollbar {
  width: 4px;
}
.ai-chat-bar-float .chat-editor::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}
.ai-chat-bar-float .chat-editor::-webkit-scrollbar-track {
  background: transparent;
}

/* Bottom actions row — attach button left, send button right */
.chat-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 4px;
}
.chat-left-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* Icon-only action button (e.g. attach files) */
.btn-chat-action {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}
.btn-chat-action:hover {
  background: var(--bg-subtle, rgba(0,0,0,0.05));
  color: var(--text-primary);
}
.btn-chat-action-ai {
  color: #854D0E;
  background: #FEF9C3;
  border: 1px solid #FDE047;
}
.btn-chat-action-ai:hover {
  background: #FEF08A;
  color: #713F12;
}

/* Combined attach dropdown */
.btn-attach-wrapper {
  position: relative;
}
.attach-menu {
  flex-direction: column;
  position: fixed;
  background: var(--bg-surface, #fff);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  padding: 4px;
  min-width: 148px;
  z-index: 1000;
}
.attach-menu-item {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  padding: 6px 10px;
  border: none;
  background: transparent;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  text-align: left;
  transition: background 0.12s, color 0.12s;
}
.attach-menu-item:hover:not(:disabled) {
  background: var(--bg-subtle, rgba(0,0,0,0.05));
  color: var(--text-primary);
}
.attach-menu-item:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
/* Ask AI mode active state */
.btn-ask-mode.active,
.btn-ask-mode[aria-pressed="true"] {
  background: #FEF9C3;
  color: #854D0E;
  border: 1px solid #FDE047;
}
/* Web Search toggle active state */
.btn-web-search.active,
.btn-web-search[aria-pressed="true"] {
  background: #DBEAFE;
  color: #1D4ED8;
  border: 1px solid #93C5FD;
}
/* Dim the send button in ask mode to hint that it returns text */
.ask-mode ~ * .btn-send,
.chat-editor-wrapper.ask-mode + * .btn-send {
  background: linear-gradient(135deg, #93C5FD, #60A5FA);
}

/* Attached file chips */
.chat-file-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px 0 2px;
}

/* Attachment note shown in user message bubble in Activity Log */
.msg-attachments-note {
  margin-top: 6px;
  font-size: 11px;
  opacity: 0.65;
  font-style: italic;
}
.chat-file-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px 2px 6px;
  background: var(--bg-subtle, #F1F5F9);
  border: 1px solid var(--border-default);
  border-radius: 10px;
  font-size: 11px;
  color: var(--text-secondary);
  max-width: 180px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-file-chip svg { flex-shrink: 0; }
.chat-file-chip .chip-remove {
  flex-shrink: 0;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1;
  opacity: 0.7;
}
.chat-file-chip .chip-remove:hover { opacity: 1; color: var(--danger, #EF4444); }

/* Chip states: loading and error */
.chat-file-chip--loading {
  opacity: 0.7;
  font-style: italic;
}
.chat-file-chip--loading .chip-spin {
  animation: chipSpin 1s linear infinite;
}
@keyframes chipSpin { to { transform: rotate(360deg); } }

.chat-file-chip--error {
  background: #FEF2F2;
  border-color: #FECACA;
  color: #DC2626;
}

/* URL import popover */
.url-import-popover {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--bg-surface, #fff);
  border: 1px solid var(--border-default);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  margin-bottom: 4px;
}
.url-import-popover-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.url-import-popover-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.url-import-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  padding: 0 2px;
}
.url-import-close:hover { color: var(--text-primary); }
.url-import-textarea {
  width: 100%;
  resize: vertical;
  font-size: 12px;
  font-family: var(--font-mono, monospace);
  padding: 6px 8px;
  border: 1px solid var(--border-default);
  border-radius: 6px;
  background: var(--bg-input, #F8FAFC);
  color: var(--text-primary);
  outline: none;
  min-height: 58px;
  box-sizing: border-box;
}
.url-import-textarea:focus { border-color: var(--accent, #FACC15); }
.url-import-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.url-import-hint {
  font-size: 11px;
  color: var(--text-muted);
  flex: 1;
}
.btn-url-import-fetch {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  background: var(--accent, #FACC15);
  color: #1a1a1a;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-url-import-fetch:hover { opacity: 0.85; }

/* URL import button active state */
.btn-import-url.active,
.btn-import-url[aria-pressed="true"] {
  background: #FEF9C3;
  color: #854D0E;
  border: 1px solid #FDE047;
}

/* Chat action separator */

/* ProseMirror content area */
.chat-editor-prose {
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  line-height: 1.5;
  padding: 4px 2px;
  min-height: 100%;
}
.chat-editor-prose p { margin: 0 0 0.3em; }
.chat-editor-prose p:last-child { margin-bottom: 0; }
.chat-editor-prose strong { font-weight: 700; }
.chat-editor-prose em { font-style: italic; }
.chat-editor-prose ul {
  margin: 0.2em 0 0.2em 1.2em;
  padding: 0;
  list-style: disc;
}
.chat-editor-prose li { margin: 0.1em 0; }

/* Placeholder */
.chat-editor-prose p.is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--text-muted);
  pointer-events: none;
  height: 0;
  font-size: 13px;
}

.btn-send {
  width: 34px;
  height: 34px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #000;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 600;
}

.btn-send:hover {
  transform: scale(1.05);
  box-shadow: 0 3px 8px rgba(250, 204, 21, 0.3);
}

.btn-send:active {
  transform: scale(0.95);
}

.btn-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: scale(1);
}

/* ─── Quick Examples in Chat ─────────────────────────────────────────────── */
#quick-examples {
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid var(--border-default);
}


/* ─── Context Menu ──────────────────────────────────────────────────────── */
.context-menu {
  position: fixed;
  z-index: 1000;
  background: #1E293B;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 4px;
  min-width: 160px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.context-menu.hidden { display: none; }
.ctx-item {
  display: flex; align-items: center; gap: 8px;
  width: 100%; padding: 8px 12px;
  background: none; border: none; color: rgba(255,255,255,0.85);
  font-size: 13px; font-family: inherit; text-align: left;
  border-radius: 6px; cursor: pointer;
}
.ctx-item:hover { background: rgba(255,255,255,0.08); }
.ctx-item.ctx-danger { color: #F87171; }
.ctx-item.ctx-danger:hover { background: rgba(239,68,68,0.12); }
.ctx-separator { height: 1px; background: rgba(255,255,255,0.08); margin: 4px 0; }

/* ─── BPMN Palette ──────────────────────────────────────────────────────── */
.bpmn-palette {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
}
.bpmn-palette > * { pointer-events: auto; }

.palette-toggle {
  width: 38px;
  height: 38px;
  background: rgba(15,23,42,0.92);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 11px;
  color: rgba(255,255,255,0.65);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.2);
}
.palette-toggle:hover {
  border-color: rgba(99,102,241,0.6);
  background: rgba(30,41,59,0.97);
  color: #fff;
  box-shadow: 0 4px 16px rgba(99,102,241,0.2), 0 1px 4px rgba(0,0,0,0.3);
  transform: scale(1.04);
}
.bpmn-palette.open .palette-toggle {
  background: linear-gradient(135deg, #6366F1, #818CF8);
  border-color: rgba(99,102,241,0.8);
  color: #fff;
  box-shadow: 0 4px 16px rgba(99,102,241,0.4);
}

.palette-body {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 10px 8px 12px;
  width: 100%;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  overflow-x: hidden;
  backdrop-filter: none;
  box-shadow: none;
  animation: paletteSlideIn 0.18s ease;
}
@keyframes paletteSlideIn {
  from { opacity: 0; transform: translateY(-6px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.palette-body::-webkit-scrollbar { width: 3px; }
.palette-body::-webkit-scrollbar-track { background: transparent; }
.palette-body::-webkit-scrollbar-thumb {
  background: rgba(250,204,21,0.4);
  border-radius: 2px;
}
.palette-body::-webkit-scrollbar-thumb:hover {
  background: rgba(250,204,21,0.65);
}
.palette-body.hidden { display: none; }

/* Section labels */
.palette-section-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 7px 4px 4px;
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  user-select: none;
  transition: color 0.13s;
}
.palette-section-label:hover {
  color: var(--text-secondary);
}
.palette-section-label .palette-section-icon {
  font-size: 12px;
  line-height: 1;
  flex-shrink: 0;
}
.palette-section-label::before {
  content: '';
  display: none;
}
.palette-section + .palette-section .palette-section-label {
  border-top: 1px solid var(--border-default);
  padding-top: 8px;
}
.palette-section:first-child .palette-section-label {
  padding-top: 2px;
  border-top: none;
}
.palette-section { display: block; }
.palette-section.hidden { display: none; }
.palette-section.collapsed .palette-grid { display: none; }
.palette-chevron {
  margin-left: auto;
  display: inline-block;
  transition: transform 0.2s;
  font-style: normal;
  font-size: 9px;
  color: var(--text-muted);
}

/* Items — 4-column compact icon grid */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  margin-bottom: 4px;
  width: 100%;
}
.palette-items {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.palette-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 7px 4px;
  border-radius: 8px;
  border: none;
  cursor: grab;
  user-select: none;
  transition: background 0.14s, transform 0.12s, box-shadow 0.14s;
  min-width: 0;
  background: transparent;
  text-align: center;
  aspect-ratio: 1 / 1;
}
.palette-item:hover {
  background: rgba(250,204,21,0.10);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(250,204,21,0.15);
  z-index: 1;
}
.palette-item:active {
  cursor: grabbing;
  transform: scale(0.90) translateY(0);
  background: rgba(250,204,21,0.18);
  box-shadow: none;
}
.palette-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  line-height: 1;
  filter: none;
}
.palette-item svg {
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 0.12s;
}
.palette-item:hover svg { opacity: 1; }
/* Labels hidden — icon-only, tooltip via title */
.palette-label,
.palette-item > span:not(.palette-icon) {
  display: none;
}

/* ─── Type Picker Cards ──────────────────────────────────────────────────── */
.type-picker {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
}

.type-cards {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.type-card {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  color: rgba(255,255,255,0.75);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, border-color 0.15s;
  font-family: inherit;
}

.type-card:hover {
  background: rgba(250,204,21,0.08);
  border-color: rgba(250,204,21,0.3);
}

.type-card.active {
  background: rgba(250,204,21,0.12);
  border-color: #FACC15;
  color: white;
}

.type-card-icon {
  font-size: 20px;
  flex-shrink: 0;
  line-height: 1;
}

.type-card-name {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
}

.type-card-desc {
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  margin-top: 1px;
  line-height: 1.3;
}

.type-card.active .type-card-desc {
  color: rgba(255,255,255,0.6);
}

/* ─── Templates Panel ─────────────────────────────────────────────────────── */
/* ─── Templates Modal (Miro-style) ──────────────────────────────────────── */
.templates-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
  animation: fadeIn 0.18s ease;
}
.templates-modal-overlay.hidden { display: none; }
@keyframes tmplModalIn {
  from { opacity: 0; transform: scale(0.96) translateY(10px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}
.templates-modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 1240px;
  max-width: 97vw;
  height: 740px;
  max-height: 93vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 72px rgba(0,0,0,0.45);
  overflow: hidden;
  animation: tmplModalIn 0.2s cubic-bezier(.22,1,.36,1);
  position: relative;
}

/* Header */
.templates-modal-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 60px 14px 20px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
  background: var(--bg-elevated);
}
.templates-modal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.templates-modal-title h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  white-space: nowrap;
}
.templates-modal-icon { font-size: 20px; }
.templates-count-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  padding: 1px 8px;
  min-width: 32px;
  text-align: center;
}
.templates-modal-search-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
  max-width: 380px;
}
.tmpl-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.templates-search {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  transition: border-color 0.15s, background 0.15s;
  box-sizing: border-box;
}
.templates-search::placeholder { color: var(--text-muted); }
.templates-search:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-page);
}
.templates-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  flex-shrink: 0;
}
.btn-tmpl-gen-thumbs {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 11.5px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  white-space: nowrap;
}
.btn-tmpl-gen-thumbs:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.btn-tmpl-gen-thumbs:disabled { opacity: 0.55; cursor: not-allowed; }


/* Body: sidebar + grid */
.templates-modal-body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  align-items: stretch;
}

/* Left sidebar */
.templates-sidebar {
  width: 190px;
  min-width: 190px;
  border-right: 1px solid var(--border-default);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
  background: var(--bg-page);
  flex-shrink: 0;
  align-self: stretch;
}
.templates-sidebar::-webkit-scrollbar { width: 3px; }
.templates-sidebar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }
.tmpl-cat-btn {
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.13s, color 0.13s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tmpl-cat-btn:hover { background: var(--bg-surface); color: var(--text-primary); }
.tmpl-cat-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

/* Right grid area */
.templates-grid-wrap {
  width: 420px;
  min-width: 380px;
  max-width: 420px;
  flex-shrink: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
  border-right: 1px solid var(--border-default);
}
.templates-grid-wrap::-webkit-scrollbar { width: 4px; }
.templates-grid-wrap::-webkit-scrollbar-track { background: transparent; }
.templates-grid-wrap::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }
.templates-grid-wrap::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Grid */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
}
.template-grid-section { display: contents; }
.template-section-label {
  grid-column: 1 / -1;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 6px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--border-default);
}
.template-section-label:first-child { margin-top: 0; }

/* Card */
.template-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 10px 10px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: all 0.15s;
  position: relative;
}
.template-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0,0,0,0.10);
}
.template-card.tmpl-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.template-icon { font-size: 24px; line-height: 1; flex-shrink: 0; }
.template-card-info { display: flex; flex-direction: column; gap: 3px; width: 100%; }
.template-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  word-break: break-word;
}
.template-type-tag {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-page);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  padding: 1px 5px;
  display: inline-block;
  width: fit-content;
}

/* Admin per-card generate button */

/* Loading / error */
.templates-loading, .templates-error {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  padding: 3rem;
}

/* Skeleton shimmer cards while templates load */
@keyframes tmplShimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.tmpl-skeleton-card {
  height: 72px;
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-elevated) 50%, var(--bg-surface) 75%);
  background-size: 800px 100%;
  animation: tmplShimmer 1.4s infinite linear;
  border: 1px solid var(--border-default);
}
.tmpl-skeleton-cat {
  height: 30px;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-elevated) 50%, var(--bg-surface) 75%);
  background-size: 800px 100%;
  animation: tmplShimmer 1.4s infinite linear;
  margin-bottom: 2px;
}

/* Legacy class shims */
.template-category { display: contents; }
.template-cards { display: contents; }

/* ── Preview Panel ── */
.templates-preview-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  overflow: hidden;
}
.tmpl-preview-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13px;
  padding: 24px;
  text-align: center;
}
.tmpl-preview-empty p { margin: 0; }
.tmpl-preview-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.tmpl-preview-content.hidden { display: none; }
.tmpl-preview-img-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: stretch;
  justify-content: center;
  background: #fff;
  overflow: hidden;
  padding: 0;
}
.tmpl-preview-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 0;
  box-shadow: none;
}
.tmpl-preview-no-thumb {
  color: var(--text-muted);
  font-size: 13px;
}
.tmpl-preview-no-thumb.hidden { display: none; }
.tmpl-preview-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border-default);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-elevated);
}
.tmpl-preview-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.tmpl-preview-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tmpl-preview-type-badge {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 1px 6px;
  width: fit-content;
}
.tmpl-preview-use-btn {
  flex-shrink: 0;
  padding: 7px 16px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
}
.tmpl-preview-use-btn:hover { background: var(--accent-dark, #4338CA); transform: translateY(-1px); }


/* ─── Diagrams Section ───────────────────────────────────────────────────── */
.diagrams-section {
  border-bottom: 1px solid var(--border-default);
  padding: var(--space-4) var(--space-4) 0;
  flex-shrink: 0;
  max-height: 240px;
  display: flex;
  flex-direction: column;
}
.diagrams-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}
.diagrams-search {
  flex: 1;
  max-width: 140px;
  font-size: 11px;
  padding: 4px 8px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-sans);
}
.diagrams-search:focus { outline: none; border-color: var(--accent); }
.diagrams-list {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 8px;
}
.diagrams-empty {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px 0;
}
/* Skeleton rows for diagrams list */
.diag-skeleton-row {
  height: 38px;
  border-radius: var(--radius-sm);
  margin: 3px 6px;
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-elevated) 50%, var(--bg-surface) 75%);
  background-size: 600px 100%;
  animation: tmplShimmer 1.4s infinite linear;
}
.diagram-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}
.diagram-item:hover { background: var(--bg-surface); }
.diagram-thumb {
  width: 40px;
  height: 28px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border-default);
  flex-shrink: 0;
}
.diagram-thumb-placeholder {
  width: 40px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  font-size: 14px;
  flex-shrink: 0;
}
.diagram-item-info { flex: 1; min-width: 0; }
.diagram-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.diagram-meta { display: flex; align-items: center; gap: 4px; margin-top: 2px; }
.type-badge {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 1px 5px;
  border-radius: 3px;
}
.type-badge-vsm { background: rgba(59,130,246,0.15); color: #3B82F6; }
.type-badge-bpmn { background: rgba(245,158,11,0.15); color: #D97706; }
.type-badge-flowchart { background: rgba(16,185,129,0.15); color: #059669; }
.type-badge-org-chart { background: rgba(250,204,21,0.15); color: #B45309; }
.btn-delete-diagram {
  width: 24px; height: 24px;
  border: none; background: transparent;
  color: var(--text-muted); cursor: pointer;
  border-radius: 4px; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all 0.15s;
}
.btn-delete-diagram:hover { background: rgba(239,68,68,0.1); color: #EF4444; }

/* ── Diagrams modal: multi-select & bulk actions ── */
.modal-bulk-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
  flex-shrink: 0;
}
.diagrams-select-all-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.diagrams-select-all-label input[type="checkbox"] { cursor: pointer; accent-color: var(--accent); }
.btn-bulk-delete {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  padding: 4px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-bulk-delete:not(:disabled):hover { background: rgba(239,68,68,0.1); color: #EF4444; border-color: rgba(239,68,68,0.25); }
.btn-bulk-delete:disabled { opacity: 0.4; cursor: not-allowed; }

/* Row wrapper — checkbox sits outside the clickable card */
/* Global diagram-row base (used outside modal too) */
.diagram-row {
  display: flex;
  align-items: stretch;
  position: relative;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}
.diagram-row.selected { background: rgba(59,130,246,0.07); }
.diagram-checkbox-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding: 0 4px 0 8px;
}
.diagram-item-checkbox { cursor: pointer; accent-color: var(--accent); }
.diagram-row .diagram-item {
  flex: 1;
  width: 100%;
  min-width: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}
.diagram-row .diagram-item:hover { background: var(--bg-surface); }
.diagram-row.preview-active { background: rgba(59,130,246,0.10); }
.diagram-row.preview-active .diagram-item { background: transparent; }

/* ── My Diagrams: 2-column modal ───────────────────────────────────────── */
.diag-modal {
  background: var(--bg-elevated);
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  box-shadow: none;
  display: flex;
  flex-direction: column;
  width: min(960px, 94vw);
  height: min(620px, 90vh);
  animation: scaleIn 0.18s cubic-bezier(0.34,1.56,0.64,1);
  overflow: hidden;
  position: relative;
}
.diag-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 10;
}
.diag-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 56px 12px 16px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-elevated);
  flex-shrink: 0;
}
.diag-modal-header h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.diag-modal-search-wrap {
  flex: 1;
  max-width: 280px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  padding: 5px 12px;
  transition: border-color 0.15s;
}
.diag-modal-search-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(99,102,241,0.12);
}
.diag-modal-search-wrap svg { color: var(--text-muted); flex-shrink: 0; }
.diag-modal-search-wrap .modal-search-input { flex: 1; min-width: 0; font-size: 12px; }
.diagrams-count {
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 10px;
  padding: 1px 7px;
  font-weight: 600;
  white-space: nowrap;
}
.diag-modal-body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  align-items: stretch;
}

/* ── Left list panel ── */
.diag-modal-left {
  width: 340px;
  min-width: 240px;
  flex-shrink: 0;
  border-right: 1px solid var(--border-default);
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  overflow: hidden;
  align-self: stretch;
}
.diag-modal-left .diagrams-list {
  flex: 1;
  min-height: 0;
  max-height: none;
  overflow-y: auto;
  padding: 4px 6px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.diag-modal-left .diagrams-list::-webkit-scrollbar { width: 3px; }
.diag-modal-left .diagrams-list::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }

/* ── My Diagrams: left sidebar items ── */
.diag-modal-left .diagram-row {
  border-radius: 7px;
  margin-bottom: 1px;
  border-left: 2px solid transparent;
  transition: background 0.1s, border-color 0.1s;
}
.diag-modal-left .diagram-row:hover {
  background: transparent;
}
.diag-modal-left .diagram-row.selected {
  background: rgba(99,102,241,0.07);
}
.diag-modal-left .diagram-row.preview-active {
  background: rgba(99,102,241,0.09);
  border-left-color: var(--accent);
}
.diag-modal-left .diagram-row.preview-active .diagram-item { background: transparent; }

/* Checkbox always visible in sidebar */
.diag-modal-left .diagram-checkbox-wrap {
  padding: 0 2px 0 10px;
}
.diag-modal-left .diagram-item-checkbox {
  width: 14px;
  height: 14px;
}

/* Item card */
.diag-modal-left .diagram-item {
  gap: 8px;
  padding: 0 10px 0 8px;
  min-width: 0;
  align-items: stretch;
}
.diag-modal-left .diagram-item .diag-type-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  align-self: center;
  background: var(--border-strong);
}
.diag-modal-left .diagram-item .diag-type-dot[data-type="vsm"]        { background: #3B82F6; }
.diag-modal-left .diagram-item .diag-type-dot[data-type="bpmn"]       { background: #F59E0B; }
.diag-modal-left .diagram-item .diag-type-dot[data-type="flowchart"]  { background: #10B981; }
.diag-modal-left .diagram-item .diag-type-dot[data-type="org-chart"]  { background: #8B5CF6; }

/* Title */
.diag-modal-left .diagram-title {
  font-size: 12px;
  font-weight: 450;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  padding: 8px 0;
  letter-spacing: 0.01em;
}
.diag-modal-left .diagram-row:hover .diagram-title {
  font-weight: 600;
  color: var(--text-primary);
}
.diag-modal-left .diagram-row.preview-active .diagram-title {
  font-weight: 600;
  color: var(--accent);
}

/* ── Right preview panel ── */
.diag-modal-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  overflow: hidden;
}
.diag-preview-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-muted);
  opacity: 0.4;
}
.diag-preview-empty p { font-size: 12px; margin: 0; }
.diag-preview-content {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.diag-preview-img-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-conic-gradient(var(--bg-elevated) 0% 25%, var(--bg-surface) 0% 50%)
    0 0 / 16px 16px;
  overflow: hidden;
  min-height: 0;
  padding: 10px;
  box-sizing: border-box;
}
.diag-preview-thumb-lg {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 3px;
}
.diag-preview-thumb-placeholder-lg {
  font-size: 48px;
  opacity: 0.18;
}
/* Footer info bar */
.diag-preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  border-top: 1px solid var(--border-default);
  background: var(--bg-elevated);
  flex-shrink: 0;
}
.diag-preview-footer-info {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.diag-preview-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.diag-preview-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}
/* Compact "Open" button */
.diag-preview-open {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
  flex-shrink: 0;
}
.diag-preview-open:hover { opacity: 0.85; transform: translateY(-1px); }
.diag-preview-open:active { transform: translateY(0); }

/* Compact "Duplicate" button in preview panel */
.diag-preview-duplicate {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  white-space: nowrap;
  flex-shrink: 0;
}
.diag-preview-duplicate:hover { background: var(--bg-hover); color: var(--text-primary); transform: translateY(-1px); }
.diag-preview-duplicate:active { transform: translateY(0); }

/* Compact "Insert into Canvas" button in preview panel */
.diag-preview-insert {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 6px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  white-space: nowrap;
  flex-shrink: 0;
}
.diag-preview-insert:hover { background: var(--bg-hover); color: var(--text-primary); transform: translateY(-1px); }
.diag-preview-insert:active { transform: translateY(0); }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ─── Modern UI enhancements ────────────────────────────────────────────── */
/* (duplicate canvas-toolbar override removed — replaced by .canvas-context-toolbar) */

@keyframes scaleIn {
  from { opacity:0; transform:scale(0.95) }
  to   { opacity:1; transform:scale(1)    }
}

.modal-dialog {
  animation: scaleIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── Node Config Panel Extras ───────────────────────────────────────────── */
.config-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--accent-soft);
  border: 1px solid rgba(99,102,241,0.25);
  color: #4F46E5;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.config-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 0 6px;
  border-top: 1px solid var(--border-default);
  margin-top: 8px;
}

.config-info-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  color: #C2410C;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-row-2 {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.form-row-2 .form-group { flex: 1; min-width: 60px; }

.form-row-2-equal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.form-group-color label {
  display: block;
  margin-bottom: 4px;
}

.color-swatch-wrap {
  display: block;
  position: relative;
  width: 100%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1.5px solid var(--border-strong);
  cursor: pointer;
}

.color-swatch {
  width: 100%;
  height: 30px;
  display: block;
  transition: filter 0.15s;
}

.color-swatch-wrap:hover .color-swatch {
  filter: brightness(0.93);
}

.color-swatch-wrap input[type="color"] {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 0;
  opacity: 0;
  border: none;
  padding: 0;
}

/* "None / Transparent" color option ─────────────────────────────────────── */
.color-field-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.color-field-row .color-swatch-wrap {
  flex: 1;
  min-width: 0;
}

.color-swatch-wrap.is-none .color-swatch {
  background-image:
    linear-gradient(45deg, #cbd5e1 25%, transparent 25%, transparent 75%, #cbd5e1 75%),
    linear-gradient(45deg, #cbd5e1 25%, #ffffff 25%, #ffffff 75%, #cbd5e1 75%);
  background-size: 10px 10px;
  background-position: 0 0, 5px 5px;
}

.color-none-btn {
  flex-shrink: 0;
  padding: 0 8px;
  font-size: 10px;
  font-weight: 600;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-page);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.color-none-btn:hover {
  background: var(--bg-hover, #f1f5f9);
}

.color-none-btn.active {
  background: #1E293B;
  color: #fff;
  border-color: #1E293B;
}

.config-form.compact .color-field-row {
  flex-direction: row !important;
  gap: 4px;
}

.config-form.compact .color-none-btn {
  font-size: 9px;
  padding: 0 6px;
}

.form-group-color input[type="color"] {
  width: 100%;
  height: 34px;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-strong);
  cursor: pointer;
}

.config-node-id {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  padding: 6px 8px;
  background: var(--bg-page);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  margin-top: 4px;
  word-break: break-all;
}

/* ─── Compact config form layout ─────────────────────────────────────────── */
.config-panel {
  width: 350px;
  right: -350px;
}

.config-panel .panel-header {
  padding: 0.65rem var(--space-4);
}

.config-panel .panel-header h3 {
  font-size: 13px;
}

.config-content {
  padding: var(--space-3);
}

.config-form.compact {
  gap: 0.45rem;
}

.config-form.compact .form-group {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.config-form.compact .form-group label {
  min-width: 80px;
  max-width: 80px;
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-secondary);
  margin: 0;
}

.config-form.compact .form-group input,
.config-form.compact .form-group select {
  padding: 5px 8px;
  font-size: 12px;
  flex: 1;
  min-width: 0;
}

.config-form.compact .form-group textarea {
  padding: 5px 8px;
  font-size: 12px;
  flex: 1;
  min-width: 0;
  min-height: 56px;
}

/* Rows (color / size groups) — keep their own layout */
.config-form.compact .form-row-2,
.config-form.compact .form-row-2-equal {
  flex-direction: row;
  gap: 6px;
}

.config-form.compact .form-row-2 .form-group,
.config-form.compact .form-row-2-equal .form-group {
  flex-direction: column;
  align-items: stretch;
  gap: 3px;
}

.config-form.compact .form-row-2 .form-group label,
.config-form.compact .form-row-2-equal .form-group label {
  min-width: unset;
  max-width: unset;
  font-size: 10px;
}

.config-form.compact .form-group-color {
  flex-direction: column;
  align-items: stretch;
}

.config-form.compact .color-swatch {
  height: 26px;
}

.config-form.compact .form-group-color input[type="color"] {
  height: 26px;
}

.config-form.compact .config-section-title {
  font-size: 9.5px;
  padding: 3px 0 4px;
  margin-top: 6px;
}

.config-form.compact .config-info-badge {
  font-size: 10px;
  padding: 3px 8px;
}

/* ── Data Source select row — shared by Table & Chart nodes ── */
.ds-select-row {
  display: flex;
  align-items: center;
  gap: 6px;
  border-left: 3px solid #6366F1;
  border-radius: 0 6px 6px 0;
  background: linear-gradient(90deg,#EEF2FF 0%,transparent 100%);
  padding: 4px 6px 4px 8px;
  margin-bottom: 6px;
}
.ds-select-row .form-group {
  flex: 1;
  margin: 0;
  min-width: 0;
}
.ds-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}
.ds-type-json { background:#DBEAFE; color:#1D4ED8; border:1px solid #93C5FD; }
.ds-type-csv  { background:#FFF7ED; color:#C2410C; border:1px solid #FED7AA; }
.ds-type-xlsx { background:#ECFDF5; color:#166534; border:1px solid #86EFAC; }
.ds-type-table { background:#EDE9FE; color:#5B21B6; border:1px solid #C4B5FD; }
.ds-empty-state {
  font-size: 11px;
  color: #64748B;
  background: #F8FAFC;
  border: 1px dashed #CBD5E1;
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.config-form.compact .form-actions {
  padding-top: var(--space-3);
  margin-top: var(--space-2);
}

.config-form.compact .form-actions-row {
  gap: 8px;
}

.config-form.compact .btn-primary,
.config-form.compact .btn-danger {
  padding: 8px 12px;
  font-size: 11px;
  flex: 1;
}

/* ─── AI Action Modal ────────────────────────────────────────────────────── */
/* AI Action floating popup — anchored near the selected node */
.ai-action-popup {
  position: fixed;
  z-index: 8000;
  width: 300px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.22), 0 2px 8px rgba(0,0,0,0.10), 0 0 0 1px rgba(250,204,21,0.10);
  overflow: hidden;
  animation: aiPopupIn 0.15s cubic-bezier(0.4,0,0.2,1);
  pointer-events: auto;
}
.ai-action-popup.hidden { display: none; }

@keyframes aiPopupIn {
  from { opacity: 0; transform: scale(0.95) translateY(-4px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.ai-action-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-default);
  background: linear-gradient(90deg, var(--bg-elevated), var(--bg-surface));
}

.ai-action-icon { font-size: 15px; flex-shrink: 0; }

.ai-action-title {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-action-close {
  width: 24px; height: 24px;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}
.ai-action-close:hover { background: var(--accent-soft); color: var(--text-primary); }

.ai-action-body { padding: 14px 14px 8px; }

.ai-action-input {
  width: 100%;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-page);
  resize: none;
  outline: none;
  line-height: 1.5;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ai-action-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.ai-action-input::placeholder { color: var(--text-muted); }

.ai-action-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px 14px;
  gap: 12px;
}

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

.ai-action-submit {
  gap: 6px;
  display: flex;
  align-items: center;
  font-size: 12px;
  padding: 0 14px;
  height: 30px;
  border-radius: 20px;
  background: var(--accent);
  border: none;
  color: #000;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  white-space: nowrap;
}
.ai-action-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(250,204,21,0.4);
}
.ai-action-submit:active { transform: translateY(0); box-shadow: none; }

/* AI Action context menu item */
.ctx-item.ctx-ai-action {
  color: #FACC15;
  font-weight: 600;
}
.ctx-item.ctx-ai-action:hover { background: rgba(250,204,21,0.12); }

/* ─── Canvas Left Floating Toolbar ──────────────────────────────────────── */
.canvas-left-toolbar {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  background: rgba(255,255,255,0.96);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 5px;
  gap: 4px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: auto;
}

/* Horizontal separator between tool groups */
.left-tb-sep {
  width: 22px;
  height: 1px;
  background: var(--border-strong);
  margin: 2px 0;
  flex-shrink: 0;
}

/* Palette wrap — relative anchor for the popup */
.left-tb-palette-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

/* Palette popup — flies out to the right of the toolbar */
.left-tb-palette-popup {
  position: fixed;           /* JS sets top/left/height — body scrolls via flex:1 */
  width: 232px;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.14), 0 3px 10px rgba(0,0,0,0.07);
  z-index: 9999;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-6px) scale(0.97);
  transform-origin: left top;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.left-tb-palette-popup.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}

/* ── Palette popup header ───────────────────────────────────────────────── */
.palette-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px 7px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
  gap: 8px;
}

.palette-popup-title {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.palette-popup-title svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.palette-popup-count {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 0px 6px;
  line-height: 1.7;
  white-space: nowrap;
}

/* ── Palette search bar ─────────────────────────────────────────────────── */
.palette-search-wrap {
  position: relative;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
  background: var(--bg-page);
}

.palette-search-icon {
  position: absolute;
  left: 17px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.palette-search-input {
  width: 100%;
  padding: 5px 8px 5px 27px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-strong);
  border-radius: 7px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.palette-search-input::placeholder {
  color: var(--text-muted);
}

.palette-search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(250,204,21,0.12);
}

/* ── Palette body ───────────────────────────────────────────────────────── */
.left-tb-palette-popup .palette-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 8px 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
  background: var(--bg-page);
  min-height: 0;
  max-height: none;   /* override base rule so flex+overflow handles it */
}
.left-tb-palette-popup .palette-body .palette-section {
  width: 100%;
}
.left-tb-palette-popup .palette-body::-webkit-scrollbar { width: 3px; }
.left-tb-palette-popup .palette-body::-webkit-scrollbar-track { background: transparent; }
.left-tb-palette-popup .palette-body::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 2px;
}
.left-tb-palette-popup .palette-body::-webkit-scrollbar-thumb:hover {
  background: rgba(250,204,21,0.5);
}

/* ── No results state ───────────────────────────────────────────────────── */
.palette-no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 28px 16px;
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}
.palette-no-results svg { opacity: 0.35; }

/* Palette button highlight when popup is open */
#btn-palette-toolbar.palette-open {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  box-shadow: 0 2px 8px var(--accent-glow);
}

/* ─── Color Themes Picker ─────────────────────────────────────────────────── */
.color-themes-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.color-themes-popup {
  position: fixed;
  width: 294px;
  background: var(--bg-page);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.16), 0 4px 12px rgba(0,0,0,0.08);
  z-index: 9999;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-6px) scale(0.97);
  transform-origin: left top;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.color-themes-popup.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}

.ctp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--border-strong);
  flex-shrink: 0;
}

.ctp-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.ctp-count {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 1px 7px;
  border-radius: 10px;
  font-weight: 500;
}

.ctp-body {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  padding: 10px;
  overflow-x: hidden;
  overflow-y: auto;
}

.ctp-body::-webkit-scrollbar { width: 3px; }
.ctp-body::-webkit-scrollbar-track { background: transparent; }
.ctp-body::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
.ctp-body::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.ctp-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 5px;
  cursor: pointer;
  padding: 5px 4px 6px;
  border-radius: 9px;
  border: 1.5px solid transparent;
  background: transparent;
  transition: background 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
}

.ctp-card:hover {
  background: var(--bg-surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.ctp-card:active {
  background: var(--accent-soft);
  border-color: var(--accent-hover);
}

/* 5-segment horizontal color swatch strip */
.ctp-swatch {
  width: 100%;
  height: 26px;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.11);
  flex-shrink: 0;
}

.ctp-swatch span {
  flex: 1;
  display: block;
}

.ctp-card-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.ctp-card:hover .ctp-card-label { color: var(--text-primary); }

/* ─── Animation toolbar button & popup ───────────────────────────────────── */
.left-tb-anim-popup {
  position: fixed;
  width: 220px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 10px 36px rgba(0,0,0,0.16), 0 2px 8px rgba(0,0,0,0.08);
  z-index: 99999;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8px) scale(0.97);
  transform-origin: left top;
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.left-tb-anim-popup.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}

.anim-popup-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px 7px;
  border-bottom: 1px solid #e2e8f0;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #64748b;
}

.anim-popup-list {
  list-style: none;
  margin: 0;
  padding: 5px 6px 4px;
}

.anim-popup-item {
  display: grid;
  grid-template-columns: 22px 1fr;
  grid-template-rows: auto auto;
  align-items: start;
  gap: 0 8px;
  padding: 8px 8px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s;
}

.anim-popup-item:hover { background: #f8fafc; }
.anim-popup-item.active { background: #fefce8; }

.anim-item-check {
  grid-row: 1 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid #cbd5e1;
  background: #f8fafc;
  flex-shrink: 0;
  margin-top: 1px;
  color: transparent;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.anim-popup-item.active .anim-item-check {
  background: #FACC15;
  border-color: #FACC15;
  color: #1e293b;
}

.anim-item-label {
  font-size: 12px;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.3;
}

.anim-item-desc {
  font-size: 10px;
  color: #94a3b8;
  line-height: 1.3;
  grid-column: 2;
}

.anim-speed-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px 8px;
  border-top: 1px solid #f1f5f9;
}

.anim-speed-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #64748b;
  flex-shrink: 0;
}

.anim-speed-btns {
  display: flex;
  gap: 4px;
}

.anim-speed-btn {
  padding: 3px 9px;
  border: 1.5px solid #e2e8f0;
  border-radius: 5px;
  background: #f8fafc;
  font-size: 10px;
  font-weight: 600;
  color: #64748b;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.anim-speed-btn:hover { background: #f1f5f9; border-color: #cbd5e1; }

.anim-speed-btn.active {
  background: #FACC15;
  border-color: #FACC15;
  color: #1e293b;
}

#btn-animation-toolbar.anim-active {
  background: #FACC15;
  border-color: #FACC15;
  color: #1e293b;
  box-shadow: 0 2px 8px rgba(250,204,21,0.4);
}

/* ─── Draw Mode toolbar popup ────────────────────────────────────────────── */
.left-tb-draw-popup {
  position: fixed;
  width: 210px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 10px 36px rgba(0,0,0,0.16), 0 2px 8px rgba(0,0,0,0.08);
  z-index: 99999;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8px) scale(0.97);
  transform-origin: left top;
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.left-tb-draw-popup.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}

#btn-draw-mode-toolbar.draw-mode-active {
  background: #FACC15;
  border-color: #FACC15;
  color: #1e293b;
  box-shadow: 0 2px 8px rgba(250,204,21,0.4);
}

/* ─── Node Animation Effect popup (context toolbar) ─────────────────────── */
.node-effect-popup {
  position: fixed;
  width: 230px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 10px 36px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.08);
  z-index: 99999;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px) scale(0.97);
  transform-origin: center top;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.node-effect-popup.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.node-effect-list { padding: 5px 6px 6px; }
.node-effect-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  grid-template-rows: auto auto;
  align-items: start;
  gap: 0 6px;
  padding: 7px 8px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s;
}
.node-effect-item:hover { background: #f8fafc; }
.node-effect-item.active { background: #fefce8; }
.node-effect-emoji {
  grid-row: 1 / 3;
  font-size: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 1px;
}
.node-effect-item .anim-item-label {
  font-size: 12px;
  font-weight: 600;
  color: #1e293b;
}
.node-effect-item .anim-item-desc {
  font-size: 10px;
  color: #94a3b8;
  grid-column: 2;
}
#btn-node-effect.effect-active {
  background: #FACC15;
  border-color: #FACC15;
  color: #1e293b;
  box-shadow: 0 2px 8px rgba(250,204,21,0.35);
}

/* ─── AI Activity Panel (right float over canvas) ────────────────────────── */
.ai-activity-panel {
  position: fixed;
  top: 40px;
  right: -440px;
  width: 420px;
  height: calc(100vh - 40px);
  background: var(--bg-page);
  border-left: 1px solid var(--border-strong);
  box-shadow: -8px 0 32px rgba(15,23,42,0.12), -2px 0 8px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 150;
  overflow: hidden;
}

.ai-activity-panel.open {
  right: 0;
}

.ai-activity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 10px 16px;
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
  background: var(--bg-page);
}

.ai-activity-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-activity-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-activity-action:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-activity-action.btn-activity-danger:hover {
  background: rgba(239,68,68,0.1);
  color: #ef4444;
  border-color: rgba(239,68,68,0.4);
}

.ai-activity-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.ai-activity-title svg {
  color: var(--accent);
}

.ai-activity-body {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ai-activity-body .chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ai-activity-body .chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.ai-activity-body .chat-messages::-webkit-scrollbar { width: 3px; }
.ai-activity-body .chat-messages::-webkit-scrollbar-track { background: transparent; }
.ai-activity-body .chat-messages::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }


/* ─── Floating User Menu + CoreStilus-style account modals ───────────────── */
.button-group { display: flex; align-items: center; }
.ml-4 { margin-left: 4px; }
.pos-relative { position: relative; }
.user-account-group { position: relative; align-items: center; }
.user-menu-btn {
  width: auto;
  min-width: 34px;
  padding: 0 8px;
  gap: 4px;
}
.user-menu-btn svg + svg { opacity: 0.72; }

.floating-context-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: none;
  flex-direction: column;
  min-width: 220px;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
  z-index: 250;
}

#user-menu.floating-context-menu {
  transform-origin: top right;
}

.user-menu-identity {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px 8px;
}

.user-menu-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-tier-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.tier-pro {
  color: #854d0e;
  background: rgba(250, 204, 21, 0.22);
}

.tier-free {
  color: #0369a1;
  background: rgba(125, 211, 252, 0.22);
}

.floating-menu-divider {
  height: 1px;
  margin: 4px 6px;
  background: var(--border-default);
}

.floating-menu-divider--danger {
  background: rgba(239, 68, 68, 0.18);
}

.menu-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.menu-item svg {
  flex-shrink: 0;
}

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

.menu-item--upgrade {
  color: #92400e;
}

.menu-item--upgrade:hover {
  background: rgba(250, 204, 21, 0.12);
}

.menu-item--danger {
  color: #dc2626;
}

.menu-item--danger:hover {
  background: rgba(239, 68, 68, 0.08);
  color: #b91c1c;
}

.modal-container {
  width: min(560px, 96vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.16);
}

.close-modal {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  background: transparent;
  border: 1px solid transparent;
}

.close-modal:hover {
  background: #f8fafc;
  border-color: var(--border-default);
  color: #0f172a;
}

.modal-title-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.modal-title-sub {
  margin: 4px 0 0;
  font-size: 12px;
  color: #64748b;
}

.personal-context-anim {
  animation: modalSlideIn 0.24s ease;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

#personalContextModal .modal-container {
  max-width: 560px;
}

.pc-modal-header,
.ds-modal-header,
.ud-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid #f1f5f9;
  background: #fff;
}

.pc-header-left,
.ds-header-left,
.ud-header-left,
.ud-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pc-header-icon,
.ds-header-icon,
.ud-header-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  flex-shrink: 0;
  background: linear-gradient(135deg, #facc15, #eab308);
  box-shadow: 0 3px 10px rgba(250, 204, 21, 0.28);
}

.pc-modal-title,
.ds-modal-title,
.ud-modal-title {
  font-size: 14px;
  font-weight: 800;
  color: #0f172a;
}

.pc-modal-sub,
.ds-modal-sub,
.ud-modal-sub {
  font-size: 11px;
  color: #64748b;
}

#personalContextModal .modal-body,
.ds-modal-body,
.ud-modal-body {
  padding: 0;
  background: #fff;
}

.pc-section {
  padding: 20px 24px;
  border-bottom: 1px solid #f1f5f9;
}

.pc-section:last-child { border-bottom: none; }

.pc-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.pc-section-icon {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #92400e;
  background: rgba(250, 204, 21, 0.12);
}

.pc-section-label,
.pc-field-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #475569;
}

.pc-field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pc-input-field,
.pc-textarea-field {
  width: 100%;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #f8fafc;
  color: #0f172a;
  font-size: 13px;
  line-height: 1.5;
  padding: 11px 14px;
}

.pc-textarea-field {
  resize: vertical;
  min-height: 128px;
}

.pc-input-field:focus,
.pc-textarea-field:focus {
  outline: none;
  border-color: #facc15;
  box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.15);
  background: #fff;
}

.pc-field-help {
  margin: 0;
  font-size: 11px;
  color: #64748b;
  line-height: 1.5;
}

.pc-manifesto-wrapper { position: relative; }

#personalContextModal .pc-counter {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding: 2px 6px;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  background: #fff;
  color: #94a3b8;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.pc-modal-footer,
.ud-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 24px;
  border-top: 1px solid #f1f5f9;
  background: #fafbfc;
}

.pc-ghost-btn {
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px 14px;
  color: #475569;
  background: transparent;
  font-size: 12px;
  font-weight: 600;
}

.pc-ghost-btn:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.pc-save-btn,
.ud-upgrade-btn,
.ds-action-btn--primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: none;
  color: #000;
  background: linear-gradient(135deg, #facc15, #eab308);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 3px 10px rgba(250, 204, 21, 0.28);
}

.ds-modal { max-width: 520px; }

.ds-modal-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
}

.ds-client-notice,
.ds-action-card,
.ud-gauge-card,
.ud-breakdown-section {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #fff;
}

.ds-client-notice {
  display: flex;
  gap: 10px;
  padding: 14px;
  background: #fffbea;
  border-color: #fde68a;
  color: #854d0e;
}

.ds-notice-title,
.ds-card-title {
  font-size: 13px;
  font-weight: 800;
  color: #0f172a;
}

.ds-notice-body,
.ds-card-desc,
.ud-gauge-sub {
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.55;
  color: #64748b;
}

.ds-section-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ds-section-divider::before,
.ds-section-divider::after {
  content: '';
  height: 1px;
  flex: 1;
  background: #e2e8f0;
}

.ds-action-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
}

.ds-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ds-card-icon--export {
  background: rgba(250, 204, 21, 0.14);
  color: #92400e;
}

.ds-card-icon--import {
  background: rgba(59, 130, 246, 0.12);
  color: #1d4ed8;
}

.ds-card-content {
  flex: 1;
  min-width: 0;
}

.ds-import-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.ds-opt-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #475569;
}

.ds-action-btn {
  border: 1px solid #dbeafe;
  border-radius: 8px;
  background: #fff;
  color: #1d4ed8;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.ds-action-btn:hover {
  background: #eff6ff;
}

.ds-tip {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f8fafc;
  color: #475569;
  font-size: 12px;
  line-height: 1.5;
}

.ud-modal { max-width: 520px; }

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

.ud-gauge-card,
.ud-breakdown-section {
  padding: 16px;
}

.ud-gauge-top,
.ud-section-header,
.ud-brow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.ud-gauge-label,
.ud-section-title {
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
}

.ud-track,
.ud-brow-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}

.ud-bar,
.ud-brow-bar {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(135deg, #facc15, #eab308);
}

.ud-bar--ok { background: linear-gradient(135deg, #22c55e, #16a34a); }
.ud-bar--caution { background: linear-gradient(135deg, #f97316, #ea580c); }
.ud-bar--warn { background: linear-gradient(135deg, #f59e0b, #d97706); }
.ud-bar--danger { background: linear-gradient(135deg, #ef4444, #dc2626); }

.ud-tier-badge,
.ud-pct-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ud-tier-starter { background: rgba(125, 211, 252, 0.22); color: #0369a1; }
.ud-tier-professional { background: rgba(250, 204, 21, 0.22); color: #854d0e; }
.ud-ok { background: rgba(34, 197, 94, 0.14); color: #166534; }
.ud-caution { background: rgba(249, 115, 22, 0.14); color: #9a3412; }
.ud-warn { background: rgba(245, 158, 11, 0.14); color: #92400e; }
.ud-danger { background: rgba(239, 68, 68, 0.14); color: #b91c1c; }

.ud-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.ud-brow {
  justify-content: flex-start;
}

.ud-brow-rank {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.ud-brow-name {
  flex: 1;
  font-size: 12px;
  color: #334155;
}

.ud-brow-calls {
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
  white-space: nowrap;
}

/* ── Tier-locked buttons ──────────────────────────────────────────────────── */
.tier-locked {
  opacity: 0.45;
  cursor: not-allowed !important;
  position: relative;
}
.tier-locked:hover::after {
  content: attr(data-tier-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: 5px;
  pointer-events: none;
  z-index: 9999;
  line-height: 1.4;
}
.tier-locked:hover::before {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: #1e293b;
  pointer-events: none;
  z-index: 9999;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE — Comprehensive overrides for the canvas app
   Breakpoints: ≤900px (narrow), ≤768px (mobile), ≤480px (small phones)
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Narrow desktop / large tablet (≤ 900px) ────────────────────────────── */
@media (max-width: 900px) {
  .header-diagram-title {
    width: 200px;
    min-width: 80px;
  }
}

/* ── Mobile (≤ 768px) ───────────────────────────────────────────────────── */
@media (max-width: 768px) {

  /* --- Viewport: keep canvas full-screen (override earlier overflow:auto) - */
  html, body {
    overflow: hidden;
    height: 100%;
  }

  /* --- Header: fit everything into 40px without overflow ---------------- */

  /* Prevent horizontal spillover at any width */
  .app-header { overflow: hidden; }

  /* Remove logo text — keep the V mark only */
  .logo-name { display: none; }

  /* Tighten gaps and prevent flex blowout */
  .header-left  { gap: 3px; flex-shrink: 1; min-width: 0; }
  .header-right { gap: 2px; flex-shrink: 1; min-width: 0; }

  /* Compact all header icon buttons to 26px */
  .app-header .btn-icon { width: 26px; height: 26px; }

  /* Remove all header separators */
  .app-header .header-sep { display: none; }

  /* Hide non-essential header buttons */
  #btn-share     { display: none; }
  #btn-templates { display: none; }
  #btn-my-diagrams { display: none; }

  /* Show hamburger — all hidden nav items move into its menu */
  #btn-hamburger { display: flex; }

  /* Center title: switch from absolute to flex child so it fills the gap */
  .header-center-title {
    position: static;
    transform: none;
    flex: 1;
    min-width: 0;
    overflow: hidden;
  }
  .header-diagram-title {
    width: 100%;
    max-width: none;
    min-width: 0;
    font-size: 12px;
    padding: 3px 6px;
    text-align: center;
  }

  /* --- Workspace: restore full-height fixed canvas --------------------- */
  .workspace {
    height: calc(100vh - 40px);
    height: calc(100dvh - 40px);
    overflow: hidden;
    flex-direction: row; /* override the 1024px column rule */
  }

  /* --- Canvas panel: fills remaining height ---------------------------- */
  .canvas-panel {
    min-height: 0;
    flex: 1;
    /* NOTE: Do NOT add transform here. The palette popup is position:fixed
       inside canvas-panel; adding any transform turns canvas-panel into a
       containing block for fixed children, breaking JS-computed coordinates.
       The iOS Safari overflow:hidden+transform clipping bug is fixed by
       removing transforms from .canvas-left-toolbar and .ai-chat-bar-float
       (see rules below), so no GPU-layer hack is needed on the panel itself. */
  }

  /* --- Canvas left toolbar: iOS-safe vertical centering (no transform) ----
     top:0 + bottom:0 + margin:auto centers an absolutely-positioned element
     without any transform, so iOS Safari overflow:hidden clipping never fires */
  .canvas-left-toolbar {
    top: 0;
    bottom: 0;
    margin-top: auto;
    margin-bottom: auto;
    height: fit-content;    /* shrink to content — don't stretch full canvas */
    transform: none;
    justify-content: center;
    overflow: hidden;
    gap: 3px;
    padding: 8px 5px;
  }

  /* --- AI Chat Bar: iOS-safe positioning (no transform centering) -------- */
  .ai-chat-bar-float {
    /* Pin to bottom with static offsets; leave room for the left toolbar */
    left: 50px;
    right: 12px;
    width: auto;
    transform: none;        /* remove translateX(-50%) that triggers iOS clipping */
    bottom: 12px;
  }

  /* --- Canvas Context Toolbar (appears on node selection, top-center) -- */
  .canvas-context-toolbar {
    /* allow horizontal scrolling instead of overflowing the screen */
    max-width: calc(100vw - 60px);
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    /* keep the left:50%/translateX(-50%) centering from the base style */
  }
  .canvas-context-toolbar::-webkit-scrollbar { display: none; }

  /* Ensure all submenu/popup layers render above canvas and remain tappable */
  .group-menu,
  .context-menu,
  .node-effect-popup,
  .left-tb-palette-popup,
  .left-tb-anim-popup,
  .left-tb-draw-popup,
  .color-themes-popup,
  .attach-menu {
    z-index: 10050 !important;
    max-height: calc(100dvh - 16px);
    overflow-y: auto;
  }

  .group-menu {
    min-width: 160px;
    padding: 8px;
  }
  .group-menu-item {
    height: 36px;
    font-size: 13px;
    border-radius: 9px;
  }

  .canvas-zoom-toolbar {
    right: 8px;
    bottom: 66px;
    gap: 4px;
    padding: 4px;
  }
  .canvas-zoom-toolbar .btn-tool {
    width: 26px;
    height: 26px;
  }
  .canvas-zoom-level {
    height: 26px;
    min-width: 50px;
    font-size: 10px;
    line-height: 24px;
    padding: 0 7px;
  }

  /* --- AI Activity Panel (fixed, slides in from right) ----------------- */
  .ai-activity-panel {
    width: 100%;
    right: -100%;
  }

  /* --- Node Config Panel (fixed, slides in from right) ----------------- */
  .config-panel {
    width: 100%;
    right: -100%;
  }
  .config-panel.open { right: 0; }

  /* --- My Diagrams Modal: full-screen, list-only (no preview pane) ----- */
  .diag-modal {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    animation: none;
  }
  /* Hide preview on mobile; list takes full width */
  .diag-modal-right { display: none; }
  .diag-modal-left  {
    width: 100%;
    min-width: 0;
    border-right: none;
  }

  /* --- Templates Modal: full-screen, grid-only (no sidebar/preview) ---- */
  .templates-modal {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    animation: none;
  }
  .templates-sidebar       { display: none; }
  .templates-preview-panel { display: none; }
  .templates-grid-wrap {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    flex: 1;
    padding: 4px;
  }
  /* 2-column template grid on mobile */
  .templates-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    padding: 10px;
  }

  /* --- Templates modal header: hide count badge on mobile -------------- */
  .templates-count-badge { display: none; }

  /* --- General modal dialogs ------------------------------------------- */
  .modal-dialog {
    width: calc(100vw - 24px);
    max-height: 90vh;
    border-radius: var(--radius-md);
  }

  /* --- Floating user/context menus: pin to right edge ------------------ */
  .floating-context-menu { right: 0; }

  /* --- Diagram 3-dot menu: fixed so it escapes header overflow:hidden -- */
  .diag-actions-menu {
    position: fixed;
    top: 44px;
    right: 8px;
    left: auto;
    z-index: 9999;
  }

  /* --- View dropdown: fixed so it escapes header overflow:hidden --------- */
  .view-dropdown-menu {
    position: fixed;
    top: 44px;
    right: 8px;
    left: auto;
    z-index: 9999;
  }

  /* --- Export dropdown: fixed so it escapes header overflow:hidden ------- */
  .export-dropdown-menu {
    position: fixed;
    top: 44px;
    right: 8px;
    left: auto;
    z-index: 9999;
  }

  /* Canvas left toolbar: nudge from edge (top/bottom stretch set at ≤768px) */
  .canvas-left-toolbar { left: 6px; }

  /* Shrink toolbar buttons slightly so all fit without scroll on ≤480px screens */
  .canvas-left-toolbar .btn-tool {
    width: 26px;
    height: 26px;
  }

  /* --- Modal containers (usage dashboard, personal context, data sync) - */
  .modal-container {
    width: calc(100vw - 24px);
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--radius-md);
  }
}

/* ── Compact mobile (≤ 600px) ───────────────────────────────────────────── */
@media (max-width: 600px) {
  /* btn-my-diagrams already hidden at ≤768px via hamburger menu */
}

/* ── Small phones (≤ 480px) ─────────────────────────────────────────────── */
@media (max-width: 480px) {

  /* Further simplify the header — keep export accessible (icon-only) */
  #btn-import-header { display: none; }
  #btn-clear         { display: none; }

  /* Diagram title even smaller */
  .header-diagram-title {
    font-size: 11px;
    padding: 2px 4px;
  }

  /* Widen chat bar on very small phones */
  .ai-chat-bar-float {
    left: 44px;
    right: 8px;
    bottom: 10px;
  }

  /* Canvas left toolbar: tighter to edge */
  .canvas-left-toolbar { left: 4px; }

  .canvas-zoom-toolbar {
    right: 6px;
    bottom: 60px;
  }

  /* Single-column template grid on very small screens */
  .templates-grid { grid-template-columns: 1fr; }

  /* Diag modal header: hide search bar to save space */
  .diag-modal-search-wrap { display: none; }
}

/* ── Import Diagram Code Dialog ────────────────────────────────────────── */
.import-code-dialog {
  width: 620px;
  max-width: 96vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}
.import-code-body {
  padding: 16px 20px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  min-height: 0;
}
.import-code-hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}
.import-code-hint strong { color: var(--text-secondary); }
.import-code-detect-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}
.import-code-detect-label { color: var(--text-muted); }
.import-code-detect-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--bg-canvas);
  color: var(--text-muted);
  border: 1px solid var(--border-default);
  letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s;
}
.import-code-detect-badge.fmt-bpmn    { background: #EFF6FF; color: #2563EB; border-color: #93C5FD; }
.import-code-detect-badge.fmt-json    { background: #F0FDF4; color: #16A34A; border-color: #86EFAC; }
.import-code-detect-badge.fmt-mermaid { background: #FFF7ED; color: #C2410C; border-color: #FDBA74; }
.import-code-detect-badge.fmt-error   { background: #FEF2F2; color: #DC2626; border-color: #FCA5A5; }
.import-code-textarea {
  flex: 1;
  width: 100%;
  min-height: 280px;
  max-height: 42vh;
  resize: vertical;
  font-family: 'Cascadia Code', 'Fira Mono', 'Consolas', monospace;
  font-size: 11.5px;
  line-height: 1.6;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  color: var(--text-primary);
  padding: 10px 12px;
  box-sizing: border-box;
  outline: none;
  transition: border-color 0.15s;
}
.import-code-textarea:focus { border-color: var(--accent); }
.import-code-textarea::placeholder { color: var(--text-muted); opacity: 0.7; }
.import-code-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-default);
  flex-shrink: 0;
}
.import-code-add-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
}
.btn-secondary {
  padding: 7px 16px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-secondary:hover { background: var(--bg-canvas); }

/* ── Table node — config panel button row ─────────────────────────────── */
.btn-sm {
  padding: 3px 9px;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-size: 11px;
  cursor: pointer;
  transition: background 0.12s;
  font-family: inherit;
}
.btn-sm:hover { background: var(--bg-page); }
.btn-danger-sm {
  background: #FEE2E2;
  border-color: #FCA5A5;
  color: #B91C1C;
}
.btn-danger-sm:hover { background: #FECACA; }
.btn-outline-sm {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}
.btn-outline-sm:hover { background: rgba(250,204,21,0.1); }

/* Toggle checkbox (hasHeader / hasFooter) */
.form-group-toggle { display: flex; align-items: center; margin: 3px 0 6px; }
.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 500;
  user-select: none;
}
.toggle-label input[type="checkbox"] { display: none; }
.toggle-slider {
  width: 32px;
  height: 18px;
  background: var(--border-strong);
  border-radius: 9px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}
.toggle-slider::after {
  content: '';
  position: absolute;
  left: 2px;
  top: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.toggle-label input:checked + .toggle-slider { background: #10B981; }
.toggle-label input:checked + .toggle-slider::after { transform: translateX(14px); }

/* ── Layers Panel (treelist: Frames / Swimlanes / Nodes) ─────────────── */
.layers-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) 0;
}
.layers-content::-webkit-scrollbar { width: 6px; }
.layers-content::-webkit-scrollbar-thumb { background: rgba(250, 204, 21, 0.3); border-radius: 3px; }
.layers-content .empty-state { text-align: center; color: var(--text-muted); padding: 2rem; }

.layers-group { margin-bottom: 2px; }
.layers-group-header {
  display: flex; align-items: center; gap: 6px;
  padding: 8px var(--space-6);
  font-size: 12px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase;
  color: #475569; background: #F1F5F9; cursor: pointer; user-select: none;
  border-top: 1px solid var(--border-strong); border-bottom: 1px solid var(--border-strong);
}
.layers-group-header:hover { background: #E2E8F0; }
.layers-group-header .lg-count { margin-left: auto; font-weight: 600; color: var(--text-muted); }
.layers-group-header .lg-caret { transition: transform .15s; }
.layers-group.collapsed .lg-caret { transform: rotate(-90deg); }
.layers-group.collapsed .layers-group-body { display: none; }

.layer-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px var(--space-6) 6px calc(var(--space-6) + 10px);
  cursor: pointer; border-left: 3px solid transparent;
  transition: background .12s;
}
.layer-item:hover { background: #FFFBEB; }
.layer-item.active { background: #FEF9C3; border-left-color: var(--accent); }
.layer-item.is-hidden { opacity: 0.45; }
.layer-item .layer-icon { font-size: 13px; flex-shrink: 0; }
.layer-item .layer-label {
  flex: 1; font-size: 12.5px; color: #1E293B; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.layer-item.is-hidden .layer-label { text-decoration: line-through; }
.layer-item .layer-eye {
  flex-shrink: 0; width: 22px; height: 22px; border: none; background: transparent;
  border-radius: 5px; cursor: pointer; font-size: 13px; display: flex; align-items: center; justify-content: center;
  color: #64748B;
}
.layer-item .layer-eye:hover { background: rgba(100, 116, 139, 0.15); }