/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --canvas-bg: #ffffff;
  --app-bg: #e4e4ee;
  --header-bg: #ffffff;
  --panel-bg: #ffffff;
  --toolbar-bg: transparent;
  --border: rgba(0,0,0,0.10);
  --border-subtle: rgba(0,0,0,0.07);

  --glass-bg: transparent;
  --glass-border: rgba(255,255,255,0.55);
  --glass-highlight: inset 0 1.5px 0 rgba(255,255,255,1), inset 0 -1px 0 rgba(0,0,0,0.04);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.10), inset 0 1.5px 0 rgba(255,255,255,1);

  --text-primary: #1c1c1e;
  --text-secondary: #6e6e73;
  --text-tertiary: #aeaeb2;

  --accent: #5856d6;
  --accent-hover: #4a49bf;
  --accent-light: rgba(88, 86, 214, 0.12);

  --user-bubble-bg: #5856d6;
  --user-bubble-text: #ffffff;
  --ai-bubble-bg: rgba(255,255,255,0.72);
  --ai-bubble-text: #1c1c1e;
  --error-bg: rgba(255, 59, 48, 0.1);
  --error-text: #d93025;

  --toolbar-bg: transparent;
  --toolbar-text: rgba(28,28,30,0.65);
  --toolbar-text-active: #1c1c1e;
  --toolbar-divider: rgba(0,0,0,0.09);
  --toolbar-btn-hover: rgba(0,0,0,0.06);
  --toolbar-btn-active-bg: rgba(0,0,0,0.08);
  --color-btn-active-border: #1c1c1e;
  --status-pill-bg: #f2f2f7;
  --status-pill-text: #1c1c1e;
  --status-pill-shadow: 0 1px 6px rgba(0,0,0,0.10);

  --mode-toggle-bg: rgba(0,0,0,0.07);
  --mode-active-bg: #ffffff;
  --dot-grid-color: rgba(0,0,0,0.055);
  --home-overlay-bg: transparent;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.07), inset 0 1px 0 rgba(255,255,255,0.85);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.09), inset 0 1px 0 rgba(255,255,255,0.80);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.05);

  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-full: 9999px;

  --ease: 0.22s ease;
}

/* ── Dark theme ── */
[data-theme="dark"] {
  --canvas-bg: #1c1c1e;
  --app-bg: #0c0c10;
  --header-bg: #1c1c1e;
  --panel-bg: #1c1c1e;
  --toolbar-bg: rgba(0,0,0,0.32);
  --border: rgba(255,255,255,0.10);
  --border-subtle: rgba(255,255,255,0.06);

  --glass-bg: rgba(0,0,0,0.28);
  --glass-border: rgba(255,255,255,0.14);
  --glass-highlight: inset 0 1.5px 0 rgba(255,255,255,0.12), inset 0 -1px 0 rgba(0,0,0,0.25);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.55), inset 0 1.5px 0 rgba(255,255,255,0.10);

  --text-primary: #f2f2f7;
  --text-secondary: #8e8e93;
  --text-tertiary: #48484a;

  --accent: #7977e8;
  --accent-hover: #6664d4;
  --accent-light: rgba(121, 119, 232, 0.15);

  --user-bubble-bg: #7977e8;
  --user-bubble-text: #ffffff;
  --ai-bubble-bg: rgba(44,44,48,0.75);
  --ai-bubble-text: #f2f2f7;
  --error-bg: rgba(255, 59, 48, 0.15);
  --error-text: #ff6b6b;

  --toolbar-bg: rgba(0,0,0,0.32);
  --toolbar-text: rgba(255,255,255,0.70);
  --toolbar-text-active: #ffffff;
  --toolbar-divider: rgba(255,255,255,0.10);
  --toolbar-btn-hover: rgba(255,255,255,0.08);
  --toolbar-btn-active-bg: rgba(255,255,255,0.12);
  --color-btn-active-border: #ffffff;
  --status-pill-bg: #2c2c2e;
  --status-pill-text: #f2f2f7;
  --status-pill-shadow: 0 1px 6px rgba(0,0,0,0.4);

  --mode-toggle-bg: rgba(255,255,255,0.08);
  --mode-active-bg: #3a3a3c;

  --dot-grid-color: rgba(255,255,255,0.05);
  --home-overlay-bg: rgba(0,0,0,0.60);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.07);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.65), 0 4px 12px rgba(0,0,0,0.30);
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: #e4e4ee;
  background-image:
    radial-gradient(ellipse at 18% 18%, rgba(88,86,214,0.22) 0%, transparent 52%),
    radial-gradient(ellipse at 82% 82%, rgba(10,132,255,0.18) 0%, transparent 52%),
    radial-gradient(ellipse at 78% 12%, rgba(175,82,222,0.18) 0%, transparent 42%),
    radial-gradient(ellipse at 22% 85%, rgba(48,209,88,0.13) 0%, transparent 42%);
  background-attachment: fixed;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

[data-theme="dark"] body,
[data-theme="dark"]body {
  background: #0c0c10;
  background-image:
    radial-gradient(ellipse at 18% 18%, rgba(88,86,214,0.28) 0%, transparent 52%),
    radial-gradient(ellipse at 82% 82%, rgba(10,100,255,0.20) 0%, transparent 52%),
    radial-gradient(ellipse at 78% 12%, rgba(150,60,200,0.20) 0%, transparent 42%),
    radial-gradient(ellipse at 22% 85%, rgba(30,160,60,0.14) 0%, transparent 42%);
  background-attachment: fixed;
}

/* ============================================================
   App Shell
   ============================================================ */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

/* ── Top Bar ── */
#topBar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 16px;
  padding-top: env(safe-area-inset-top, 0px);
  height: calc(52px + env(safe-area-inset-top, 0px));
  background: var(--header-bg);
  backdrop-filter: blur(40px) saturate(220%) brightness(1.04);
  -webkit-backdrop-filter: blur(40px) saturate(220%) brightness(1.04);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), var(--glass-highlight);
  flex-shrink: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* brand-logo-btn removed from DOM */

/* ai-toggle-btn removed from DOM — now a plain tool-btn inside toolbar */


.brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-canvas-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  max-width: 140px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-left: 2px;
  cursor: pointer;
  transition: color var(--ease);
}
.header-canvas-name:hover {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(0,0,0,0.2);
}
.header-canvas-name-input {
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--accent);
  border-radius: 0;
  padding: 0 2px;
  outline: none;
  width: 110px;
  max-width: 140px;
  margin-left: 2px;
}

.brand-tulis,
.brand-ai {
  color: rgba(0, 0, 0, 0.1);
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95),
    0 -1px 1px rgba(0, 0, 0, 0.22);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.canvas-name-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: left;
  max-width: 130px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  display: block;
}

.canvas-name-btn:hover {
  color: var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}

/* ── Header mode toggle ── */
#modeToggleWrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

#autoSendIndicator {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
}

#autoSendIndicator::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #f59e0b;
  animation: pulse-dot 1s ease-in-out infinite;
  flex-shrink: 0;
}

#autoSendIndicator.hidden {
  display: none;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.75); }
}

#modeToggle {
  display: flex;
  align-items: center;
  background: var(--mode-toggle-bg, rgba(0, 0, 0, 0.06));
  border-radius: var(--r-full);
  padding: 3px;
  gap: 2px;
}

.header-mode-btn {
  padding: 5px 16px;
  border-radius: var(--r-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
  white-space: nowrap;
}

.header-mode-btn.active {
  background: var(--mode-active-bg, white);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.header-mode-btn:not(.active):active {
  background: rgba(0, 0, 0, 0.05);
}


/* ── Main Area ── */
#mainArea {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* On very narrow screens hide the layout toggle */

/* ── Canvas Container ── */
#canvasContainer {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: transparent;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

#canvasWorld {
  position: absolute;
  top: 0;
  left: 0;
  will-change: transform;
  transform-origin: 0 0;
  background: var(--canvas-bg);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.06), 0 8px 48px rgba(0,0,0,0.12);
}

/* ── Canvas Status Bar ── */
#canvasStatusBar {
  position: absolute;
  bottom: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 20;
  pointer-events: none;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  background: var(--status-pill-bg);
  color: var(--status-pill-text);
  box-shadow: var(--status-pill-shadow);
  pointer-events: auto;
  user-select: none;
  -webkit-user-select: none;
}

.zoom-label-inline {
  min-width: 38px;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--toolbar-text);
  letter-spacing: 0.02em;
  pointer-events: none;
}

/* Subtle dot-grid paper feel */
#canvasContainer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--dot-grid-color, rgba(0,0,0,0.055)) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  z-index: 0;
}

#drawingCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  -webkit-touch-callout: none;
  cursor: crosshair;
  z-index: 1;
  background: transparent;
}

#canvasContainer.panning        { cursor: grab; }
#canvasContainer.panning-active { cursor: grabbing; }
#canvasContainer.panning        #drawingCanvas { cursor: grab; }
#canvasContainer.panning-active #drawingCanvas { cursor: grabbing; }

#scribeCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

#selectionCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

/* ── AI Panel ── */
#aiPanel {
  position: relative;
  width: 360px;
  max-height: none;
  min-height: 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel-bg);
  border-radius: 0;
  border: none;
  border-right: 1px solid var(--glass-border);
  box-shadow: 4px 0 16px rgba(0,0,0,0.08);
  overflow: hidden;
  z-index: 1;
  order: -1;
}

#aiPanel.closed {
  display: none;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 8px 8px 14px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
  -webkit-user-select: none;
  user-select: none;
  background: var(--header-bg);
}

.panel-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.panel-drag-area {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 1;
  min-width: 0;
}

.drag-dots {
  color: var(--text-tertiary);
  flex-shrink: 0;
  pointer-events: none;
}

.panel-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.panel-header-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.panel-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--r-xs);
  color: var(--text-secondary);
}

/* ── Chat Messages ── */
#chatMessages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

#chatMessages:empty::after {
  content: "Write something on the canvas, then send it to the AI.";
  display: block;
  color: var(--text-tertiary);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
  padding: 48px 24px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 100%;
}

.chat-user { align-items: flex-end; }
.chat-assistant { align-items: flex-start; }
.chat-error { align-items: flex-start; }

/* ── Sent toggle ── */
.sent-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px 4px 8px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  background: var(--ai-bubble-bg);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
  user-select: none;
}

.sent-toggle:active {
  background: rgba(0,0,0,0.07);
}

.sent-toggle svg {
  transition: transform var(--ease);
  flex-shrink: 0;
}

.sent-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.sent-collapsible {
  display: none;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  width: 100%;
}

.sent-collapsible.open {
  display: flex;
}

.canvas-thumb {
  width: 100%;
  max-width: 220px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  display: block;
  background: var(--canvas-bg);
  box-shadow: var(--shadow-sm);
}

.chat-bubble {
  padding: 9px 13px;
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.55;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.chat-user .chat-bubble {
  background: var(--user-bubble-bg);
  color: var(--user-bubble-text);
  border-bottom-right-radius: var(--r-xs);
}

.chat-assistant .chat-bubble {
  background: var(--ai-bubble-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05), var(--glass-highlight);
  color: var(--ai-bubble-text);
  border-bottom-left-radius: var(--r-xs);
}

.chat-error .chat-bubble {
  background: var(--error-bg);
  color: var(--error-text);
  font-size: 13px;
}

/* Markdown content inside AI bubbles */
.ai-text p {
  margin: 0 0 8px;
}
.ai-text p:last-child {
  margin-bottom: 0;
}
.ai-text ul,
.ai-text ol {
  padding-left: 18px;
  margin: 4px 0 8px;
}
.ai-text li {
  margin: 3px 0;
}
.ai-text strong {
  font-weight: 600;
}
.ai-text em {
  font-style: italic;
}
.ai-text code {
  background: rgba(0, 0, 0, 0.07);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12px;
}
.ai-text h1, .ai-text h2, .ai-text h3 {
  font-weight: 600;
  margin: 8px 0 4px;
}
.ai-text h1 { font-size: 16px; }
.ai-text h2 { font-size: 15px; }
.ai-text h3 { font-size: 14px; }

/* ── Chat Input Area ── */
#chatInput {
  padding: 10px 12px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--glass-border);
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  overflow: visible;
}

#userMessage {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: transparent;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-primary);
  resize: none;
  outline: none;
  box-sizing: border-box;
  min-height: 36px;
  max-height: 90px;
  transition: border-color var(--ease);
  user-select: text;
  -webkit-user-select: text;
}

#userMessage:focus {
  border-color: var(--accent);
  background: transparent;
}

#userMessage::placeholder {
  color: var(--text-tertiary);
}

/* ── Lean send button group ── */
.chat-input-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.chat-input-actions button {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
  flex-shrink: 0;
  padding: 0;
}
.chat-input-actions button:hover {
  background: var(--toolbar-btn-hover);
  color: var(--text-primary);
}

#sendCanvasBtn {
  background: var(--accent) !important;
  color: white !important;
}
#sendCanvasBtn:hover { opacity: 0.88; }
#sendCanvasBtn:active { opacity: 0.75; }
#sendCanvasBtn:disabled { opacity: 0.5; cursor: not-allowed; }
.send-dropdown-item:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Chat input textarea row (with attach button) ── */
.chat-input-row {
  display: flex;
  gap: 6px;
  align-items: flex-end;
}

.chat-input-row #userMessage {
  flex: 1;
  min-width: 0;
}

#attachFileBtn.has-files {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* ── Attached files bar ── */
#attachedFilesBar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#attachedFilesBar.hidden {
  display: none;
}

.attached-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--accent-light);
  border: 1px solid var(--accent);
  font-size: 12px;
  color: var(--accent);
  max-width: 180px;
  white-space: nowrap;
  overflow: hidden;
}

.attached-chip .chip-icon {
  font-size: 11px;
  flex-shrink: 0;
}

.attached-chip .chip-name {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.attached-chip .chip-remove {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent);
  font-size: 14px;
  line-height: 1;
  padding: 0;
  margin-left: 2px;
}

.attached-chip .chip-remove:hover {
  color: var(--accent-hover);
}

.attached-chip.processing {
  background: #f5f3ff;
  border-color: #c4b5fd;
  color: #7c3aed;
}

/* ── Buttons (shared) ── */
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.icon-btn:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06), var(--glass-highlight);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.icon-btn:active {
  background: rgba(0,0,0,0.07);
}

.icon-btn.active {
  background: var(--accent-light);
  color: var(--accent);
}

.primary-btn {
  padding: 11px 24px;
  border-radius: var(--r-sm);
  border: none;
  background: var(--accent);
  color: white;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--ease);
  width: 100%;
}

.primary-btn:active {
  opacity: 0.8;
}

/* ── Floating Toolbar ── */
#toolbar {
  position: absolute;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 9px 12px;
  background: var(--toolbar-bg);
  backdrop-filter: blur(40px) saturate(220%) brightness(1.04);
  -webkit-backdrop-filter: blur(40px) saturate(220%) brightness(1.04);
  border-radius: var(--r-full);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12), var(--glass-highlight);
  z-index: 50;
  white-space: nowrap;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  will-change: left, bottom;
  transition:
    padding     0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
    gap         0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow  0.28s ease;
}

/* Bundled state — instant compact on grab */
#toolbar.bundled {
  padding: 7px 10px;
  gap: 1px;
  box-shadow:
    0 32px 80px rgba(0,0,0,0.28),
    0 10px 28px rgba(0,0,0,0.15),
    var(--glass-highlight);
  transition: none;
  cursor: grabbing;
}

/* All tool groups collapse when bundled */
#toolbar:not(.bundled) .tool-group,
#toolbar:not(.bundled) .tool-divider {
  transition:
    max-width 0.36s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity   0.22s ease,
    margin    0.36s cubic-bezier(0.34, 1.56, 0.64, 1);
}
#toolbar.bundled .tool-group {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  transition: none;
}
#toolbar.bundled .tool-divider {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  margin: 0;
  transition: none;
}

/* Tool buttons spring out */
#toolbar:not(.bundled) .tool-btn {
  transition:
    width  0.34s cubic-bezier(0.34, 1.56, 0.64, 1),
    height 0.34s cubic-bezier(0.34, 1.56, 0.64, 1),
    background var(--ease), color var(--ease);
}
#toolbar.bundled .tool-btn {
  width: 26px;
  height: 26px;
  transition: none;
}

/* Sub-buttons & zoom label fold in */
#toolbar:not(.bundled) .tool-sub-btn {
  transition: width 0.30s cubic-bezier(0.34,1.56,0.64,1), opacity 0.20s ease;
}
#toolbar.bundled .tool-sub-btn {
  width: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0;
  margin: 0;
  transition: none;
}
#toolbar:not(.bundled) .zoom-label-inline {
  transition: max-width 0.30s cubic-bezier(0.34,1.56,0.64,1), opacity 0.22s ease;
  max-width: 50px;
  opacity: 1;
}
#toolbar.bundled .zoom-label-inline {
  max-width: 0;
  min-width: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0;
  transition: none;
}

/* Drag handle */
.toolbar-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 36px;
  cursor: grab;
  color: var(--toolbar-text);
  flex-shrink: 0;
  margin-right: 4px;
  opacity: 0.40;
  border-radius: var(--r-xs);
  transition: opacity var(--ease), background var(--ease);
  padding: 0 3px;
}
.toolbar-handle:hover {
  opacity: 0.80;
  background: var(--toolbar-btn-hover);
}
#toolbar.bundled .toolbar-handle {
  cursor: grabbing;
  opacity: 1;
  margin-right: 0;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.tool-divider {
  width: 1px;
  height: 22px;
  background: var(--toolbar-divider);
  margin: 0 4px;
  flex-shrink: 0;
}

.tool-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--r-sm);
  border: none;
  background: transparent;
  color: var(--toolbar-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--ease), color var(--ease);
  position: relative;
}

.tool-btn:hover {
  background: var(--toolbar-btn-hover);
  color: var(--toolbar-text-active);
}

.tool-btn:active {
  background: var(--toolbar-btn-active-bg);
}

/* ── (auto-send button and pill removed) ── */

/* ── Tool active states ── */
.tool-btn.active {
  background: var(--toolbar-btn-active-bg);
  color: var(--toolbar-text-active);
}

/* Active indicator dot */
.tool-btn.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Pen preset colour indicator ── */
.pen-preset {
  position: relative;
}
/* Use same specificity as .tool-btn.active::after to override accent dot */
.tool-btn.pen-preset::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 3px;
  border-radius: 2px;
  background: var(--pen-color, #1c1c1e);
  transition: width var(--ease);
}
.tool-btn.pen-preset.active::after {
  width: 20px;
}

/* ── Tool with sub-dropdown ── */
.tool-with-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}
.tool-sub-btn {
  width: 12px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--toolbar-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin-left: -2px;
  opacity: 0.55;
  transition: opacity var(--ease);
  flex-shrink: 0;
}
.tool-sub-btn:hover { opacity: 1; }

.tool-dropdown {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--glass-shadow);
  z-index: 200;
  overflow: hidden;
  min-width: 134px;
  white-space: nowrap;
}
.tool-dropdown.hidden { display: none; }

.tool-dropdown-item {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  padding: 9px 14px;
  border: none;
  background: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  transition: background var(--ease);
}
.tool-dropdown-item:hover { background: var(--toolbar-btn-hover); }
.tool-dropdown-item.active { color: var(--accent); font-weight: 600; }
.tool-dropdown-item.danger { color: #dc2626; }
.tool-dropdown-item.danger:hover { background: rgba(220,38,38,0.08); }

/* ── Settings Modal ── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.30);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 460px;
  max-height: 82vh;
  background: var(--glass-bg);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.modal-body {
  overflow-y: auto;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  -webkit-overflow-scrolling: touch;
}

.modal-footer {
  padding: 14px 22px;
  padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

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

.setting-group input,
.setting-group select,
.setting-group textarea {
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--ai-bubble-bg);
  font-family: inherit;
  font-size: 15px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--ease);
  user-select: text;
  -webkit-user-select: text;
}

.setting-group input:focus,
.setting-group select:focus,
.setting-group textarea:focus {
  border-color: var(--accent);
  background: var(--panel-bg);
}

.setting-group textarea {
  resize: vertical;
  min-height: 96px;
  line-height: 1.5;
}

.setting-hint {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.toggle-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-label {
  font-size: 14px;
  color: var(--text-primary);
}

.size-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

.size-control input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  padding: 0;
  border: none;
  background: transparent;
}

.size-label {
  min-width: 36px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  text-align: right;
}

/* ── Loading animation ── */
@keyframes blink {
  0%, 80%, 100% { opacity: 0.2; }
  40%           { opacity: 1; }
}

.loading-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: white;
  border-radius: 50%;
  margin: 0 2px;
  animation: blink 1.2s infinite;
}
.loading-dot:nth-child(2) { animation-delay: 0.2s; }
.loading-dot:nth-child(3) { animation-delay: 0.4s; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(128,128,128,0.25); border-radius: 2px; }

/* ============================================================
   Portrait layout — AI panel collapses to a narrower bar
   ============================================================ */
@media (orientation: portrait) {
  #aiPanel {
    width: 280px;
  }
}

/* ============================================================
   Canvas Flyout
   ============================================================ */
.canvas-flyout {
  position: absolute;
  top: 60px;
  left: 14px;
  width: 280px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  z-index: 150;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: top left;
  animation: flyoutIn 0.2s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

.canvas-flyout.hidden { display: none; }

@keyframes flyoutIn {
  from { opacity: 0; transform: scale(0.92) translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.flyout-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

.flyout-brand {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.flyout-new-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
  flex-shrink: 0;
}
.flyout-new-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.flyout-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
  max-height: 60vh;
  padding: 8px;
}

.canvas-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease);
}

.canvas-card:hover {
  background: var(--ai-bubble-bg);
  border-color: var(--border);
}

.canvas-card.active {
  border-color: var(--accent);
  background: var(--accent-light);
}

.canvas-card-thumb {
  width: 56px;
  height: 38px;
  border-radius: var(--r-xs);
  object-fit: cover;
  background: var(--canvas-bg);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.canvas-card-thumb-empty {
  width: 56px;
  height: 38px;
  border-radius: var(--r-xs);
  background: var(--canvas-bg);
  border: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 16px;
}

.canvas-card-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.canvas-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.canvas-card-meta {
  font-size: 11px;
  color: var(--text-tertiary);
}

.canvas-card-delete {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 6px;
  border-radius: var(--r-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--ease), background var(--ease);
}

.canvas-card-delete:hover {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.08);
}

/* ── Rename modal ── */
.rename-modal-content {
  max-width: 360px;
}

.rename-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--ai-bubble-bg);
  font-family: inherit;
  font-size: 16px;
  color: var(--text-primary);
  outline: none;
  user-select: text;
  -webkit-user-select: text;
}

.rename-input:focus {
  border-color: var(--accent);
  background: var(--panel-bg);
}

/* ============================================================
   Auth UI
   ============================================================ */

/* User button wrap (relative so the badge + menu anchor to it) */
.user-btn-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

/* Small dot badge shown when signed out */
.auth-badge {
  position: absolute;
  top: 4px;
  right: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid var(--header-bg);
  pointer-events: none;
}
.auth-badge.hidden { display: none; }

/* Avatar states */
.user-btn.signed-in {
  padding: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent);
}
.user-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.user-avatar-initials {
  font-size: 12px;
  font-weight: 700;
  color: white;
  background: var(--accent);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

/* User dropdown menu */
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 190px;
  background: var(--glass-bg);
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--glass-shadow);
  z-index: 200;
  overflow: hidden;
}
.user-menu.hidden { display: none; }
.user-menu-label {
  padding: 10px 14px 6px;
  font-size: 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--glass-border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-menu-quota {
  padding: 5px 14px 7px;
  font-size: 11px;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--glass-border);
}
.user-menu-quota.hidden { display: none; }
.user-menu-item {
  width: 100%;
  padding: 10px 14px;
  border: none;
  background: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background var(--ease);
}
.user-menu-item:hover { background: var(--toolbar-btn-hover); }

/* Auth modal */
.auth-modal-content {
  max-width: 360px;
  width: 100%;
  padding: 32px 28px 28px;
}
.auth-modal-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  color: var(--text-primary);
}

/* Google button */
.auth-google-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--panel-bg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}
.auth-google-btn:hover { background: var(--toolbar-btn-hover); border-color: var(--accent); }

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  color: var(--text-tertiary);
  font-size: 12px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.auth-form input {
  padding: 10px 13px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--ai-bubble-bg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color var(--ease);
}
.auth-form input:focus { border-color: var(--accent); }
.auth-error {
  font-size: 13px;
  color: #ef4444;
  min-height: 0;
}
.auth-error:not(:empty) {
  min-height: 18px;
}
.auth-submit-btn {
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: var(--r-sm);
  background: var(--accent);
  color: white;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--ease);
}
.auth-submit-btn:hover    { opacity: 0.88; }
.auth-submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.auth-toggle {
  text-align: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-secondary);
}
.auth-toggle-link {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
}

/* ============================================================
   Tutorial Overlay
   ============================================================ */
.tutorial-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tutorial-overlay.hidden { display: none; }

.tutorial-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.tutorial-card {
  position: relative;
  z-index: 1;
  width: min(440px, calc(100vw - 32px));
  background: var(--panel-bg);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: tutorialIn 0.28s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

@keyframes tutorialIn {
  from { opacity: 0; transform: scale(0.88) translateY(12px); }
  to   { opacity: 1; transform: none; }
}

/* Step dots */
.tutorial-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 20px 24px 0;
}

.tutorial-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.2s, transform 0.2s;
}

.tutorial-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

/* Visual area */
.tutorial-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 148px;
  background: var(--ai-bubble-bg);
  margin: 16px 24px 0;
  border-radius: var(--r-md);
  color: var(--accent);
}

.tutorial-visual svg {
  filter: drop-shadow(0 2px 12px color-mix(in srgb, var(--accent) 35%, transparent));
}

/* Text */
.tutorial-text {
  padding: 20px 24px 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tutorial-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
}

.tutorial-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.tutorial-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.tutorial-body kbd {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--ai-bubble-bg);
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Actions row */
.tutorial-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px 20px;
}

.tutorial-skip {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 13px;
  padding: 4px 0;
  transition: color 0.15s;
}
.tutorial-skip:hover { color: var(--text-secondary); }

.tutorial-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tutorial-back {
  opacity: 0.5;
  transition: opacity 0.15s;
}
.tutorial-back:not(:disabled):hover { opacity: 1; }
.tutorial-back:disabled { opacity: 0.2; cursor: default; }

.tutorial-next {
  padding: 9px 22px;
  border-radius: var(--r-full);
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
}
.tutorial-next:hover  { background: var(--accent-hover); }
.tutorial-next:active { transform: scale(0.97); }

/* ============================================================
   Welcome screen
   ============================================================ */
.welcome-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--app-bg);
  padding: 24px;
}
.welcome-screen.hidden { display: none; }

.welcome-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  max-width: 360px;
  width: 100%;
}
.welcome-logo {
  font-size: 52px;
  line-height: 1;
  margin-bottom: 4px;
}
.welcome-brand {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.welcome-tagline {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.welcome-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  margin-top: 8px;
}
.welcome-google-btn {
  width: 100%;
  justify-content: center;
}
.welcome-email-btn {
  width: 100%;
  padding: 11px 16px;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--border);
  background: var(--panel-bg);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}
.welcome-email-btn:hover {
  background: var(--toolbar-btn-hover);
  border-color: var(--accent);
}
.welcome-skip-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 13px;
  cursor: pointer;
  padding: 6px;
  margin-top: 2px;
  transition: color var(--ease);
}
.welcome-skip-btn:hover { color: var(--text-secondary); }

/* ============================================================
   Welcome back toast
   ============================================================ */
.welcome-toast {
  position: fixed;
  top: 64px;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--panel-bg);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
  white-space: nowrap;
}
.welcome-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.welcome-toast.hidden { display: none; }

/* ============================================================
   Library Overlay
   ============================================================ */
/* ── Library Sidebar ── */
.library-sidebar {
  position: fixed;
  inset: 0;
  z-index: 300;
  pointer-events: none;
}
.library-sidebar:not(.hidden) { pointer-events: auto; }

.lib-sidebar-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.22s ease;
}
.library-sidebar:not(.hidden) .lib-sidebar-backdrop { opacity: 1; }

.lib-sidebar-panel {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 260px;
  background: var(--glass-bg);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-right: 1px solid var(--glass-border);
  box-shadow: 4px 0 32px rgba(0,0,0,0.12), var(--glass-highlight);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.library-sidebar:not(.hidden) .lib-sidebar-panel { transform: translateX(0); }

.lib-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 10px 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.lib-sidebar-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.lib-sidebar-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}
.lib-new-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border-radius: var(--r-full);
  border: none;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--ease);
}
.lib-new-btn:hover { opacity: 0.85; }

.lib-sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0 20px;
}

.lib-sidebar-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-tertiary);
  padding: 14px 16px 4px;
}

/* ── Sidebar canvas rows ── */
.lib-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  cursor: pointer;
  position: relative;
  transition: background var(--ease);
}
.lib-row:hover { background: var(--ai-bubble-bg); }
.lib-row.active { background: var(--accent-light); }

.lib-row-thumb {
  width: 44px;
  height: 30px;
  border-radius: 5px;
  object-fit: cover;
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--canvas-bg);
}
.lib-row-thumb-empty {
  width: 44px;
  height: 30px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--canvas-bg);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 13px;
}
.lib-row-info { flex: 1; min-width: 0; }
.lib-row-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.lib-row.active .lib-row-name { color: var(--accent); font-weight: 600; }
.lib-row-meta { font-size: 11px; color: var(--text-tertiary); margin-top: 1px; }

.lib-row-delete {
  opacity: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 4px;
  border-radius: var(--r-xs);
  flex-shrink: 0;
  transition: opacity 0.1s, color 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lib-row:hover .lib-row-delete { opacity: 1; }
.lib-row-delete:hover { color: #dc2626; }

/* ── Home Screen ── */
.home-screen {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--home-overlay-bg);
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.home-screen.hidden { display: none; }

.home-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  padding-top: env(safe-area-inset-top, 0px);
  height: calc(56px + env(safe-area-inset-top, 0px));
  background: var(--header-bg);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  flex-shrink: 0;
  gap: 12px;
}
.home-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}
.home-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.home-new-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: var(--r-full);
  border: none;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--ease);
}
.home-new-btn:hover { opacity: 0.85; }

.home-body {
  flex: 1;
  overflow-y: auto;
  padding: 28px 28px 48px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.home-section-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}
.home-section-icon {
  color: var(--text-tertiary);
  flex-shrink: 0;
  position: relative;
  top: 1px;
}
.home-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-secondary);
}
.home-section-count {
  font-size: 11px;
  color: var(--text-tertiary);
}

.home-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.home-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--ease), border-color var(--ease), transform 0.12s ease;
  position: relative;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06), var(--glass-highlight);
}
.home-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.home-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light), var(--shadow-sm);
}
.home-card-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--canvas-bg);
}
.home-card-thumb-empty {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--canvas-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--text-tertiary);
}
.home-card-info {
  padding: 9px 11px 10px;
}
.home-card-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}
.home-card.active .home-card-name { color: var(--accent); }
.home-card-meta {
  font-size: 11px;
  color: var(--text-tertiary);
}
.home-card-open-badge {
  position: absolute;
  top: 7px;
  right: 7px;
  background: var(--accent);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--r-full);
  pointer-events: none;
}
.home-card-menu-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  border-radius: var(--r-sm);
  border: none;
  background: rgba(0,0,0,0.28);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--ease), background var(--ease);
  z-index: 10;
}
.home-card:hover .home-card-menu-btn,
.home-card-menu-btn.open {
  opacity: 1;
}
.home-card-menu-btn:hover {
  background: rgba(0,0,0,0.48);
}
.home-card-dropdown {
  position: absolute;
  top: 34px;
  right: 6px;
  background: var(--panel-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: 0 4px 20px rgba(0,0,0,0.16);
  z-index: 200;
  min-width: 120px;
  overflow: hidden;
}
.home-card-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-primary);
  transition: background var(--ease);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  font-family: inherit;
}
.home-card-dropdown-item:hover {
  background: var(--glass-bg);
}
.home-card-dropdown-item.danger { color: #dc2626; }
.home-empty {
  text-align: center;
  padding: 60px 20px;
  font-size: 15px;
  color: var(--text-tertiary);
}

/* ── New Canvas Modal ── */
.new-canvas-content { max-width: 420px; }
.canvas-type-picker {
  display: flex;
  gap: 10px;
  margin-bottom: 6px;
}
.canvas-type-btn {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--border);
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--text-primary);
  transition: border-color var(--ease), background var(--ease);
}
.canvas-type-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-light);
}
.canvas-type-btn.active {
  border-color: var(--accent);
  background: var(--accent-light);
}
.canvas-type-btn:disabled { opacity: 0.38; cursor: not-allowed; }
.canvas-type-name { font-size: 13px; font-weight: 600; }
.canvas-type-desc { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

/* ── Group Badge (status bar pill) ── */
.group-badge-wrap {
  position: relative;
}

.group-badge-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1.5px dashed var(--border);
  border-radius: var(--r-full);
  padding: 3px 9px;
  font-family: inherit;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
  white-space: nowrap;
}
.group-badge-pill:hover { color: var(--accent); border-color: var(--accent); }
.group-badge-pill.has-group {
  color: var(--accent);
  border-style: solid;
  border-color: var(--accent);
  background: var(--accent-light);
}

[data-theme="dark"] .group-badge-pill {
  color: rgba(255,255,255,0.78);
  border-color: rgba(255,255,255,0.28);
}
[data-theme="dark"] .group-badge-pill:hover {
  color: var(--accent);
  border-color: var(--accent);
}
[data-theme="dark"] #topBar .icon-btn {
  color: rgba(255,255,255,0.90);
}
[data-theme="dark"] .brand-tulis,
[data-theme="dark"] .brand-ai {
  color: rgba(255, 255, 255, 0.07);
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.9),
    0 -1px 0 rgba(255, 255, 255, 0.13);
}
[data-theme="dark"] .header-canvas-name:hover {
  text-decoration-color: rgba(255,255,255,0.25);
}

/* ── Group Assign Dropdown ── */
.group-assign-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--glass-shadow);
  z-index: 130;
  min-width: 190px;
  overflow: hidden;
  padding: 4px;
}
.group-assign-menu.hidden { display: none; }
.group-assign-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--r-xs);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  background: none;
  border: none;
  width: 100%;
  font-family: inherit;
  text-align: left;
  transition: background var(--ease);
}
.group-assign-item:hover { background: var(--ai-bubble-bg); }
.group-assign-item.active { color: var(--accent); font-weight: 600; }
.group-assign-item.separator {
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 10px;
  color: var(--text-secondary);
}
.group-assign-item.danger:hover { color: #dc2626; background: rgba(220,38,38,0.08); }