:root,
html[data-theme="contrast-dark"] {
  --bg-app: #000000;
  --bg-sidebar: #000000;
  --bg-surface: #000000;
  --bg-surface-hover: #0a0a0e;
  --bg-elevated: #050507;
  --bg-input: #000000;
  --border-color: #1c1c22;
  --border-subtle: #111115;
  --text-primary: #ffffff;
  --text-secondary: #d4d4d8;
  --text-muted: #71717a;
  --accent: #8b5cf6;
  --accent-hover: #7c3aed;
  --accent-soft: rgba(139, 92, 246, 0.16);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --prio-low: #22c55e;
  --prio-medium: #60a5fa;
  --prio-high: #fbbf24;
  --prio-urgent: #f87171;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.96);
  color-scheme: dark;
}

html[data-theme="dark"] {
  --bg-app: #0d1117;
  --bg-sidebar: #111621;
  --bg-surface: #161c2a;
  --bg-surface-hover: #1e2638;
  --bg-elevated: #1f283b;
  --bg-input: #0e131d;
  --border-color: #263147;
  --border-subtle: #1c2436;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.14);
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg-app: #f8fafc;
  --bg-sidebar: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-input: #ffffff;
  --border-color: #cbd5e1;
  --border-subtle: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  color-scheme: light;
}

/* Custom High-Contrast Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-sidebar);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 99px;
}

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

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background-color: var(--bg-app);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  line-height: 1.45;
  font-size: 14px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.hidden {
  display: none !important;
}

/* ==========================================
   AUTHENTICATION OVERLAY (LOGIN / REGISTER)
   ========================================== */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-app);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.auth-brand h2 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.auth-brand p {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: var(--bg-input);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.auth-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

.auth-tab.active {
  background: var(--accent);
  color: #ffffff;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-error {
  background: rgba(239, 68, 68, 0.16);
  border: 1px solid var(--danger);
  color: #fca5a5;
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.auth-submit-btn {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  margin-top: 4px;
}

.user-profile-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 12px;
}

.user-badge {
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-workspace-card {
  max-width: 500px;
  margin: 60px auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.empty-workspace-card h3 {
  font-size: 18px;
  font-weight: 700;
}

.empty-workspace-card p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==========================================
   APP SHELL LAYOUT & RESIZABLE CHAT PANE
   ========================================== */
.app-shell {
  --ai-pane-width: 410px;
  display: grid;
  grid-template-columns: 260px 1fr 6px var(--ai-pane-width);
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.app-shell.ai-collapsed {
  grid-template-columns: 260px 1fr 0px 0px;
}

.app-shell.ai-collapsed .ai-pane,
.app-shell.ai-collapsed .pane-resizer {
  display: none;
}

/* Draggable Resizer Bar */
.pane-resizer {
  width: 6px;
  height: 100vh;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
  z-index: 20;
  user-select: none;
}

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

.resizer-grip {
  width: 2px;
  height: 38px;
  border-radius: 99px;
  background: var(--text-muted);
  opacity: 0.6;
}

.pane-resizer:hover .resizer-grip,
.pane-resizer.dragging .resizer-grip {
  background: #ffffff;
  opacity: 1;
}

/* ==========================================
   LEFT SIDEBAR
   ========================================== */
.sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 0;
  overflow: hidden;
  user-select: none;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 15px 14px 13px;
  border-bottom: 1px solid var(--border-subtle);
  background: #000000;
}

.qortex-logo-svg {
  width: 212px;
  height: 50px;
  color: var(--text-primary);
  display: block;
  overflow: visible;
  filter: drop-shadow(0 2px 10px rgba(99, 102, 241, 0.22));
  transition: transform 0.2s ease, filter 0.2s ease;
}

.sidebar-brand:hover .qortex-logo-svg {
  filter: drop-shadow(0 3px 16px rgba(34, 211, 238, 0.35));
}

.qx-orbit {
  transform-origin: 27px 27px;
  animation: qxOrbitSpin 24s linear infinite;
}

.qx-core-dot {
  animation: qxCorePulse 3s ease-in-out infinite;
}

@keyframes qxOrbitSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes qxCorePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.auth-logo-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  gap: 8px;
}

.auth-sub-caption {
  font-size: 12.5px;
  color: var(--text-secondary);
}

/* Overall Running Total Card in Left Sidebar */
.sidebar-overall-card {
  margin: 12px 12px 2px;
  padding: 11px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.overall-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.overall-header strong {
  color: var(--text-primary);
  font-size: 11px;
}

.overall-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 5px;
}

.overall-metrics.overall-metrics-4 {
  grid-template-columns: repeat(4, 1fr);
}

.overall-metric {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 5px 4px;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 13.5px;
  font-weight: 800;
  line-height: 1.2;
}

.metric-value.running {
  color: #a78bfa;
}

.metric-value.in-progress {
  color: #fbbf24;
}

.metric-value.verifying {
  color: #22d3ee;
}

.metric-value.done {
  color: var(--success);
}

.metric-value.total {
  color: var(--text-primary);
}

.metric-label {
  font-size: 10px;
  color: var(--text-muted);
}

.overall-track {
  height: 5px;
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.project-list {
  flex: 1 1 0%;
  min-height: 0;
  overflow-y: auto;
  padding: 4px 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.project-tree-node {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.subprojects-children {
  margin-left: 14px;
  padding-left: 8px;
  border-left: 1px dashed var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.project-nav-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 9px;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.14s ease;
  border: 1px solid transparent;
  position: relative;
  gap: 6px;
}

.project-nav-item:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.project-nav-item.active {
  background: var(--accent-soft);
  color: var(--text-primary);
  border-color: rgba(99, 102, 241, 0.35);
  font-weight: 600;
}

.project-nav-item.dragging-project {
  opacity: 0.4;
  border: 1px dashed var(--accent);
}

.project-nav-item.drop-before {
  border-top: 2px solid var(--accent) !important;
}

.project-nav-item.drop-after {
  border-bottom: 2px solid var(--accent) !important;
}

.project-nav-item.drop-inside {
  border-color: #22d3ee !important;
  background: rgba(34, 211, 238, 0.14) !important;
  box-shadow: inset 0 0 0 1px #22d3ee;
}

.project-nav-item.drop-inside::after {
  content: "↳ Sub-Project";
  position: absolute;
  right: 8px;
  top: -9px;
  background: #06b6d4;
  color: #000000;
  font-size: 9.5px;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 99px;
  pointer-events: none;
  z-index: 5;
}

.project-nav-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.project-drag-handle {
  color: var(--text-muted);
  font-size: 12px;
  cursor: grab;
  opacity: 0.45;
  padding: 0 2px;
  user-select: none;
  flex-shrink: 0;
}

.project-nav-item:hover .project-drag-handle {
  opacity: 0.95;
  color: var(--text-secondary);
}

.project-collapse-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 9.5px;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  border-radius: 4px;
}

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

.project-collapse-spacer {
  width: 10px;
  flex-shrink: 0;
}

.project-nav-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
}

.project-nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.project-add-sub-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 5px;
  width: 20px;
  height: 20px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.14s ease, background 0.14s ease, color 0.14s ease;
}

.project-nav-item:hover .project-add-sub-btn {
  opacity: 1;
}

.project-add-sub-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: #ffffff;
}

.project-nav-count {
  font-size: 11px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  padding: 2px 7px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
}

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-trigger {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 9px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s;
}

.settings-trigger:hover {
  border-color: var(--accent);
}

.settings-status {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--warning);
  flex-shrink: 0;
}

.status-dot.connected {
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.settings-info {
  min-width: 0;
}

.settings-info strong {
  display: block;
  font-size: 12px;
}

.settings-info small {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 165px;
}

.sidebar-bottom-actions {
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

/* ==========================================
   CENTER WORKSPACE
   ========================================== */
.workspace {
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  background: var(--bg-app);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
  gap: 16px;
  flex-wrap: wrap;
}

.project-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.project-icon-badge {
  font-size: 24px;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.project-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-title-row h2 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.project-desc {
  font-size: 12px;
  color: var(--text-secondary);
  max-width: 560px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.project-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.progress-widget {
  min-width: 150px;
  background: var(--bg-input);
  padding: 6px 11px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.progress-bar-track {
  height: 6px;
  background: var(--border-color);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--success));
  border-radius: 99px;
  transition: width 0.3s ease;
}

/* ==========================================
   PROJECT BRAIN DRAWER (Claude Projects Style)
   ========================================== */
.brain-drawer {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 22px;
  max-height: 310px;
  overflow-y: auto;
}

.brain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.brain-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.brain-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.brain-card-header h3 {
  font-size: 13px;
  font-weight: 700;
}

.brain-card-header p {
  font-size: 11px;
  color: var(--text-secondary);
}

.brain-card textarea {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 12.5px;
  resize: vertical;
}

.knowledge-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 140px;
  overflow-y: auto;
}

.knowledge-item {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.knowledge-item strong {
  font-size: 12px;
  display: block;
}

.knowledge-item p {
  font-size: 11.5px;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

/* ==========================================
   QUICK ADD TASK BAR
   ========================================== */
.quick-add-section {
  padding: 14px 22px 8px;
}

.quick-add-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 6px 8px 6px 14px;
  gap: 10px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.12);
  transition: border-color 0.15s;
}

.quick-add-bar:focus-within {
  border-color: var(--accent);
}

.quick-add-main {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.plus-icon {
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
}

.quick-add-main input {
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

.quick-add-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.quick-add-controls select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
}

.btn-attach-inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 5px 9px;
  cursor: pointer;
  font-size: 13px;
}
.btn-attach-inline:hover {
  border-color: var(--accent);
}

.staged-photos-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.staged-photo-chip {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--accent);
}

.staged-photo-chip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.staged-photo-chip button {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: 10px;
  cursor: pointer;
}

/* ==========================================
   TOOLBAR & FILTERS
   ========================================== */
.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 22px 12px;
  gap: 12px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-subtle);
}

.filter-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.filter-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.tab-count {
  font-size: 10.5px;
  opacity: 0.85;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px 9px;
}

.search-box input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 12.5px;
  outline: none;
  width: 170px;
}

/* ==========================================
   FOLDERS & RECURSIVE TASK TREE (X -> Y -> Z)
   ========================================== */
.task-board-scroll {
  flex: 1 1 0%;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 22px 80px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.folder-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.folder-card.folder-dragging {
  opacity: 0.42;
  border: 1px dashed var(--accent);
}

.folder-card.folder-drop-before {
  border-top: 3px solid #22d3ee !important;
  box-shadow: 0 -4px 14px rgba(34, 211, 238, 0.22);
}

.folder-card.folder-drop-after {
  border-bottom: 3px solid #22d3ee !important;
  box-shadow: 0 4px 14px rgba(34, 211, 238, 0.22);
}

.folder-drag-handle {
  cursor: grab;
  color: var(--text-muted);
  font-size: 14px;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0.65;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
}

.folder-header:hover .folder-drag-handle {
  opacity: 1;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.folder-drag-handle:active {
  cursor: grabbing;
}

.folder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  user-select: none;
}

.folder-header-left {
  display: flex;
  align-items: center;
  gap: 9px;
}

.folder-collapse-icon {
  font-size: 11px;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

.folder-card.collapsed .folder-collapse-icon {
  transform: rotate(-90deg);
}

.folder-card.collapsed .folder-body {
  display: none;
}

.folder-title {
  font-weight: 700;
  font-size: 13.5px;
}

.folder-count-badge {
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-input);
  padding: 1px 8px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
}

.folder-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.folder-body {
  padding: 6px 10px 10px;
}

.empty-folder-msg {
  padding: 12px;
  text-align: center;
  color: var(--text-muted);
  font-size: 12.5px;
}

/* Task Node & Subtask Tree */
.task-node {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  transition: background 0.12s;
}

.task-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  gap: 10px;
  border: 1px solid transparent;
  position: relative;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.12s ease;
}

.task-row:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-subtle);
}

.task-row.dragging-item {
  opacity: 0.4;
  border: 1px dashed var(--accent);
}

.task-row.drop-before {
  border-top: 2px solid var(--accent) !important;
}

.task-row.drop-after {
  border-bottom: 2px solid var(--accent) !important;
}

.task-row.drop-inside,
.task-row.drag-over {
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.task-row.drop-inside::after {
  content: "↳ Drop to nest as subtask";
  position: absolute;
  right: 12px;
  top: -10px;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 99px;
  pointer-events: none;
}

.folder-card.folder-drop-target {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.drag-handle {
  cursor: grab;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1;
  padding: 2px 3px;
  border-radius: 4px;
  user-select: none;
  opacity: 0.55;
  transition: opacity 0.12s, color 0.12s;
  margin-top: 1px;
}

.task-row:hover .drag-handle,
.folder-header:hover .drag-handle {
  opacity: 1;
  color: var(--text-primary);
}

.drag-handle:active {
  cursor: grabbing;
}

/* Inline Folder Quick Add Bar */
.folder-inline-add {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 4px;
  margin-top: 4px;
  border-top: 1px dashed var(--border-subtle);
}

.folder-inline-add input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  outline: none;
}

.folder-inline-add input:focus {
  border-color: var(--accent);
}

.api-routing-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.api-routing-title {
  font-size: 11.5px;
  font-weight: 700;
  color: #c4b5fd;
  margin-bottom: 10px;
}

.task-left {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.subtask-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 18px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}
.subtask-toggle-btn:hover {
  color: var(--text-primary);
}

.task-checkbox {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: 5px;
  margin-top: 1px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: all 0.15s ease;
  background: var(--bg-input);
}

.task-checkbox:hover {
  border-color: var(--accent);
}

.task-checkbox:checked {
  background: var(--success);
  border-color: var(--success);
}

.task-checkbox:checked::after {
  content: "✓";
  position: absolute;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  top: -2px;
  left: 2px;
}

.task-content-col {
  flex: 1;
  min-width: 0;
}

.task-title-line {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.task-title-text {
  font-size: 13.5px;
  color: var(--text-primary);
  word-break: break-word;
  cursor: pointer;
}

.task-row.is-completed .task-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-row.status-in_progress {
  border-left: 2.5px solid #f59e0b;
  background: rgba(245, 158, 11, 0.04);
}

.task-row.status-verifying {
  border-left: 2.5px solid #22d3ee;
  background: rgba(34, 211, 238, 0.05);
}

/* Interactive Status Pill Selector on Task Rows */
.status-pill-select {
  appearance: none;
  -webkit-appearance: none;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  outline: none;
  line-height: 1.35;
  transition: all 0.15s ease;
}

.status-pill-select:hover {
  border-color: var(--accent);
}

.status-pill-select.status-pill-todo {
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-color: var(--border-color);
}

.status-pill-select.status-pill-in_progress {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.45);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.12);
}

.status-pill-select.status-pill-verifying {
  background: rgba(34, 211, 238, 0.15);
  color: #22d3ee;
  border-color: rgba(34, 211, 238, 0.5);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.14);
}

.status-pill-select.status-pill-completed {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.45);
}

.status-pill-select option {
  background: #050507;
  color: #ffffff;
  font-weight: 600;
}

.prio-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}
.prio-low { background: rgba(16, 185, 129, 0.15); color: var(--prio-low); }
.prio-medium { background: rgba(59, 130, 246, 0.15); color: var(--prio-medium); }
.prio-high { background: rgba(245, 158, 11, 0.15); color: var(--prio-high); }
.prio-urgent { background: rgba(239, 68, 68, 0.18); color: var(--prio-urgent); }

.subtask-pill {
  font-size: 10.5px;
  color: var(--text-secondary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 0px 6px;
  border-radius: 99px;
}

.task-notes-preview {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: pre-wrap;
}

/* Task Photo Thumbnails */
.task-photos-grid {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
  flex-wrap: wrap;
}

.task-photo-thumb {
  position: relative;
  width: 68px;
  height: 68px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: zoom-in;
  background: var(--bg-input);
  transition: transform 0.15s, border-color 0.15s;
}

.task-photo-thumb:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.task-photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.task-photo-delete {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  border: none;
  font-size: 10px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
}

.task-photo-thumb:hover .task-photo-delete {
  opacity: 1;
}

/* Task Row Hover Actions */
.task-actions {
  display: flex;
  align-items: center;
  gap: 5px;
  opacity: 0.85;
  transition: opacity 0.15s;
  flex-shrink: 0;
}

.task-row:hover .task-actions {
  opacity: 1;
}

.task-action-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.task-action-btn:hover {
  color: #ffffff;
  border-color: var(--accent);
  background: var(--accent-soft);
}

.task-action-btn.ai-magic {
  color: #c4b5fd;
  border-color: rgba(124, 58, 237, 0.55);
}
.task-action-btn.ai-magic:hover {
  background: var(--accent-soft);
}

/* Recursive Subtask Children Container (X -> Y -> Z) */
.subtasks-children {
  margin-left: 22px;
  padding-left: 12px;
  border-left: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Inline Subtask Adder & Inline Task Editor */
.inline-subtask-form,
.inline-edit-drawer {
  margin: 4px 0 6px 30px;
  padding: 9px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inline-subtask-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inline-subtask-row input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
}

.inline-subtask-row input:focus {
  border-color: var(--accent);
}

.inline-edit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.inline-edit-drawer input,
.inline-edit-drawer textarea,
.inline-edit-drawer select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 9px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-family: inherit;
}

/* ==========================================
   RIGHT PANE: Q AI CHAT
   ========================================== */
.ai-pane {
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 0;
  overflow: hidden;
  min-width: 260px;
}

.ai-pane-header {
  padding: 12px 14px 10px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.ai-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ai-header-buttons {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sparkle-icon {
  font-size: 18px;
}

.ai-title h3 {
  font-size: 14px;
  font-weight: 700;
}

.ai-title small {
  font-size: 11px;
  color: var(--text-secondary);
  display: block;
}

.ai-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--bg-input);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.model-picker-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  flex: 1;
  min-width: 0;
}

.model-picker-wrap label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 600;
}

.model-picker-wrap select {
  flex: 1;
  min-width: 0;
  background: var(--bg-input);
  border: none;
  color: var(--text-primary);
  font-size: 11.5px;
  font-weight: 600;
  outline: none;
  text-overflow: ellipsis;
}

.model-picker-wrap select option {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.chat-thread-bar {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chat-thread-bar select {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 11.5px;
}

.ai-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.prompt-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 4px 9px;
  border-radius: 99px;
  font-size: 11px;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s;
}
.prompt-chip:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.chat-messages {
  flex: 1 1 0%;
  min-height: 0;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  flex-shrink: 0;
  max-width: 92%;
  padding: 10px 13px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-bubble.user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 3px;
}

.chat-bubble.assistant {
  align-self: flex-start;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-bottom-left-radius: 3px;
}

.chat-meta {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chat-bubble-photos {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.chat-bubble-photos img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 6px;
  cursor: zoom-in;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-actions-box {
  margin-top: 9px;
  padding: 7px 10px;
  background: var(--accent-soft);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-actions-title {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ai-action-item {
  font-size: 11.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 5px;
}

.chat-input-area {
  padding: 10px 12px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

.chat-form {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 6px 8px;
}

.chat-form:focus-within {
  border-color: var(--accent);
}

.btn-chat-attach {
  cursor: pointer;
  font-size: 16px;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
}
.btn-chat-attach:hover {
  background: var(--bg-surface-hover);
}

.chat-form textarea {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  resize: none;
  outline: none;
  max-height: 110px;
}

.btn-send {
  background: var(--accent);
  color: #fff;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-send:hover {
  background: var(--accent-hover);
}

/* ==========================================
   BUTTONS & BADGES
   ========================================== */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-primary-sm {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
}

.btn-primary-outline {
  background: var(--accent-soft);
  color: var(--text-primary);
  border: 1px solid var(--accent);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12.5px;
  cursor: pointer;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12.5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-secondary:hover { border-color: var(--accent); }

.btn-secondary-sm {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
}
.btn-secondary-sm:hover { border-color: var(--accent); }

.btn-ghost, .btn-ghost-sm, .btn-ghost-xs {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.btn-ghost { padding: 7px 12px; font-size: 13px; }
.btn-ghost-sm { padding: 4px 8px; font-size: 12px; }
.btn-ghost-xs { padding: 2px 6px; font-size: 11px; }
.btn-ghost:hover, .btn-ghost-sm:hover, .btn-ghost-xs:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.btn-danger-ghost {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.35);
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12.5px;
}

.btn-icon, .btn-icon-sm {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 4px 8px;
  font-size: 12px;
}
.btn-icon:hover, .btn-icon-sm:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.badge-pill {
  background: var(--accent);
  color: #fff;
  font-size: 10.5px;
  padding: 1px 6px;
  border-radius: 99px;
}

/* ==========================================
   MODALS & LIGHTBOX
   ========================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-card-wide {
  max-width: 680px;
}

.snippet-tabs {
  display: flex;
  gap: 4px;
}

.snippet-tabs .active-snippet {
  background: var(--accent);
  color: #ffffff;
}

.code-snippet-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-family: "Cascadia Code", Consolas, Monaco, monospace;
  font-size: 12px;
  color: #e2e8f0;
  overflow-x: auto;
  max-height: 270px;
  line-height: 1.45;
  white-space: pre;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

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

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-color);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

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

.label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-group label {
  font-size: 12.5px;
  font-weight: 600;
}

.form-help {
  font-size: 11.5px;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

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

.input-with-btn {
  display: flex;
  gap: 8px;
}
.input-with-btn input { flex: 1; }

.status-subtext {
  font-size: 11.5px;
  color: var(--success);
}

/* Lightbox */
.lightbox-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
  gap: 16px;
}

.lightbox-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lightbox-body {
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background: #05070a;
}

.lightbox-body img {
  max-width: 82vw;
  max-height: 76vh;
  object-fit: contain;
  border-radius: 6px;
}

/* Floating AI Restore Pill (when minimized) */
.ai-restore-fab {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: var(--accent);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 99px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(124, 58, 237, 0.55);
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s ease, background 0.15s ease;
}

.ai-restore-fab:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 18px;
  right: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--accent);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 12.5px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-only {
  display: none;
}

.mobile-bottom-nav {
  display: none;
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 230px 1fr 6px var(--ai-pane-width, 350px);
  }
  .brain-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
    height: calc(100vh - 60px);
  }
  .pane-resizer {
    display: none;
  }
  .sidebar, .ai-pane {
    position: fixed;
    top: 0;
    bottom: 60px;
    z-index: 500;
    width: 86vw;
    max-width: 330px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.9);
  }
  .sidebar { left: 0; transform: translateX(-105%); transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1); }
  .sidebar.open { transform: translateX(0); }
  .ai-pane { right: 0; width: 100vw; max-width: 100vw; transform: translateX(105%); transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1); }
  .ai-pane.open { transform: translateX(0); }
  .mobile-only { display: inline-flex; }

  .project-header {
    padding: 10px 14px;
    gap: 10px;
  }
  .project-header-right {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
  }
  .progress-widget {
    flex: 1;
    min-width: 120px;
  }
  .quick-add-section {
    padding: 10px 14px;
  }
  .quick-add-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .quick-add-controls {
    flex-wrap: wrap;
    gap: 6px;
  }
  .workspace-toolbar {
    padding: 8px 14px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .filter-tabs {
    overflow-x: auto;
    padding-bottom: 2px;
  }
  .toolbar-actions {
    width: 100%;
    justify-content: space-between;
  }
  .search-box {
    flex: 1;
  }
  .search-box input {
    width: 100%;
  }
  .task-board-scroll {
    padding: 12px 12px 90px;
  }
  .ai-restore-fab {
    display: none !important;
  }
  .project-add-sub-btn {
    opacity: 1;
  }

  /* OLED Black Mobile Bottom Navigation Bar */
  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: #000000;
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    align-items: center;
    z-index: 950;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .mobile-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    height: 100%;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.15s ease, background 0.15s ease;
  }

  .mobile-nav-btn.active {
    color: #22d3ee;
  }

  .mobile-nav-btn.mob-nav-add .mob-nav-icon {
    background: var(--accent);
    color: #ffffff;
    width: 30px;
    height: 30px;
    border-radius: 99px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    box-shadow: 0 2px 10px rgba(124, 58, 237, 0.45);
  }

  .mob-nav-icon {
    font-size: 16px;
    line-height: 1;
  }

  .mob-nav-label {
    font-size: 10px;
    font-weight: 600;
  }
}