/* ==========================================================================
   Tomkownik — main stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Reset & CSS Custom Properties
   -------------------------------------------------------------------------- */

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

:root {
  /* Colors — refined palette */
  --color-primary: #5b6ef7;
  --color-primary-hover: #4a5ce6;
  --color-primary-light: rgba(91, 110, 247, 0.08);
  --color-primary-glow: rgba(91, 110, 247, 0.18);
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-hover: #fafbfc;
  --color-border: #e2e5ea;
  --color-border-light: #eef0f3;
  --color-text: #1a1d26;
  --color-text-secondary: #4a5068;
  --color-muted: #8790a5;
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-warning: #f59e0b;

  /* Layout */
  --sidebar-width: 260px;
  --topbar-height: 56px;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-size-base: 14px;
  --font-size-sm: 12px;
  --font-size-xs: 11px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;

  /* Spacing & Shape */
  --radius: 10px;
  --radius-sm: 6px;
  --radius-xs: 4px;
  --radius-full: 999px;
  --transition: 0.18s ease;
  --transition-fast: 0.1s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
}

html {
  font-size: var(--font-size-base);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

::selection {
  background: var(--color-primary-glow);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   2. Layout — .app grid, .topbar, .sidebar, .content
   -------------------------------------------------------------------------- */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--topbar-height) 1fr;
  grid-template-areas:
    "topbar  topbar"
    "sidebar content";
  min-height: 100vh;
}

/* — Topbar — */

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--topbar-height);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.search-input {
  flex: 1;
  max-width: 320px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-glow);
}
.search-input::placeholder {
  color: var(--color-muted);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.hamburger:hover {
  background: var(--color-bg);
}

.logo {
  font-weight: 700;
  font-size: var(--font-size-xl);
  letter-spacing: -0.03em;
  color: var(--color-primary);
  user-select: none;
}

/* — View Toggle — */

.view-toggle {
  display: flex;
  gap: 2px;
  margin-left: auto;
  background: var(--color-bg);
  padding: 3px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
}

.view-select {
  display: none;
  margin-left: auto;
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 12px;
  flex-shrink: 0;
}

.view-toggle .btn {
  font-size: var(--font-size-sm);
  padding: 5px 14px;
  border-radius: calc(var(--radius) - 2px);
  transition: all var(--transition);
}

.view-toggle .btn.active {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  color: var(--color-primary);
  font-weight: 600;
}

/* — Sidebar — */

.sidebar {
  grid-area: sidebar;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border-light);
  padding: 16px 0;
  overflow-y: auto;
  height: calc(100vh - var(--topbar-height));
  position: sticky;
  top: var(--topbar-height);
}

.nav-item {
  padding: 9px 20px;
  cursor: pointer;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  transition: all var(--transition);
  user-select: none;
  border-right: 3px solid transparent;
}

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

.nav-item.active {
  color: var(--color-primary);
  font-weight: 600;
  background: var(--color-primary-light);
  border-right-color: var(--color-primary);
}

/* — Content — */

.content {
  grid-area: content;
  padding: 24px 32px;
  overflow-y: auto;
  height: calc(100vh - var(--topbar-height));
}

/* --------------------------------------------------------------------------
   3. Filters
   -------------------------------------------------------------------------- */

.filters {
  padding: 16px 20px;
  border-top: 1px solid var(--color-border-light);
  margin-top: 12px;
}

.filters-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.filter-group {
  margin-bottom: 14px;
}

.filter-group label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: 5px;
  font-weight: 500;
}

.filter-group select,
.filter-group input[type="date"] {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.filter-group select:focus,
.filter-group input[type="date"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.filter-group.filter-active {
  background: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  padding-left: 10px;
  border-radius: var(--radius-sm);
}

.filter-group.filter-active label {
  color: var(--color-primary);
  font-weight: 600;
}

/* — Toggle switch — */

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 2px 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  user-select: none;
}

.toggle-row span {
  font-weight: 500;
}

.toggle-sub {
  padding-left: 8px;
  margin-top: 6px;
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.toggle-switch {
  appearance: none;
  -webkit-appearance: none;
  width: 36px;
  height: 20px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.toggle-switch:checked {
  background: var(--color-primary);
}

.toggle-switch:checked::after {
  transform: translateX(16px);
}

.toggle-switch:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.filter-tags-separator {
  width: 100%;
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: 4px 0;
}

.filter-tags-group-label {
  width: 100%;
  font-size: 10px;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: var(--font-size-base);
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 1px 3px rgba(91, 110, 247, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 2px 8px rgba(91, 110, 247, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

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

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: var(--color-danger-hover);
}

.btn-sm {
  padding: 5px 12px;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   5. Task List & Task Items
   -------------------------------------------------------------------------- */

.task-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 120px;
}

/* — Task Node (wrapper for item + subtasks) — */

.task-node {
  /* structural wrapper, no visual style */
}

.subtask-list {
  margin-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 3px;
  padding-left: 12px;
  border-left: 2px solid var(--color-border-light);
}

/* — Task Item Card — */

.task-item {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  min-height: 44px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
}

.task-item:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.task-item:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light), var(--shadow-sm);
}

.task-item:focus .task-grip {
  opacity: 0.5;
}

/* Completed task */
.task-item.completed {
  opacity: 0.7;
}

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

.task-item.completed .task-desc {
  color: var(--color-muted);
  opacity: 0.7;
}

/* — Drag Handle — */

.task-grip {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--color-muted);
  cursor: grab;
  opacity: 0;
  transition: opacity var(--transition);
  user-select: none;
}

.task-item:hover .task-grip {
  opacity: 0.5;
}

.task-grip:hover {
  opacity: 1 !important;
  color: var(--color-text-secondary);
}

.task-grip:active {
  cursor: grabbing;
}

/* — Expand/Collapse Arrow — */

.task-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  font-size: 10px;
  color: var(--color-muted);
  cursor: pointer;
  user-select: none;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
}

.task-arrow:hover {
  color: var(--color-text);
  background: var(--color-bg);
}

.task-arrow.expanded {
  transform: rotate(90deg);
}

/* — Checkbox — */

.task-checkbox {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
  border-radius: var(--radius-xs);
}

/* — Task Body — */

.task-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.task-title {
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.45;
  word-break: break-word;
  color: var(--color-text);
}

.task-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.45;
  word-break: break-word;
}

/* — Task Meta (date, time, tags) — */

.task-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 5px;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

/* — Tag Badge — */

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  white-space: nowrap;
  user-select: none;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition);
  cursor: pointer;
}

.tag-badge:hover {
  background: var(--color-border-light);
  border-color: var(--color-border);
}

.tag-badge.active {
  background: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 0 2px var(--color-primary-glow);
}

/* — Task Delete Button — */

.task-delete-btn {
  background: none;
  border: none;
  font-size: 12px;
  color: var(--color-muted);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  opacity: 0;
  flex-shrink: 0;
  line-height: 1;
  align-self: flex-start;
  margin-top: 2px;
}

.task-item:hover .task-delete-btn {
  opacity: 1;
}

.task-delete-btn:hover {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.08);
}

.task-delete-confirm {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  align-self: flex-start;
  animation: fade-in 0.15s ease;
}

.task-confirm-yes {
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  border: none;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-weight: 600;
  background: var(--color-danger);
  color: #fff;
  transition: background var(--transition-fast);
}

.task-confirm-yes:hover {
  background: var(--color-danger-hover);
}

.task-confirm-no {
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  border: none;
  border-radius: var(--radius-xs);
  cursor: pointer;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  transition: background var(--transition-fast);
}

.task-confirm-no:hover {
  background: var(--color-border-light);
}

/* --------------------------------------------------------------------------
   6. Inline Editing
   -------------------------------------------------------------------------- */

.inline-edit-input {
  width: 100%;
  padding: 5px 8px;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--font-size-base);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.inline-new-input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius);
  background: transparent;
  font-size: var(--font-size-base);
  color: var(--color-muted);
  outline: none;
  transition: all var(--transition);
}

.inline-new-input::placeholder {
  color: var(--color-muted);
}

.inline-new-input:focus {
  border-color: var(--color-primary);
  border-style: solid;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.task-inline-new {
  padding: 6px 12px;
}

/* --------------------------------------------------------------------------
   7. Drag & Drop + FLIP Animation
   -------------------------------------------------------------------------- */

.task-item.dragging {
  opacity: 0.25;
}

/* Drop indicator line */
.drop-indicator {
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin: -1px 0;
  position: relative;
  z-index: 10;
  box-shadow: 0 0 6px var(--color-primary-glow);
}

/* --------------------------------------------------------------------------
   8. Tags Manager
   -------------------------------------------------------------------------- */

.tags-manager-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.tags-group-header {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 14px 6px;
}

.tags-group-header:first-child {
  padding-top: 4px;
}

.tag-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.tag-row:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.tag-row-new {
  background: transparent;
  border-style: dashed;
  border-color: var(--color-border);
  margin-top: 8px;
}

.tag-row-new:hover {
  background: var(--color-surface-hover);
}

.tag-color-dot {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  border: 2px solid rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.tag-color-dot:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.tag-icon-cell {
  font-size: 18px;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 2px;
  transition: background var(--transition);
  line-height: 1.2;
}

.tag-icon-cell:hover {
  background: var(--color-bg);
}

.tag-name-cell {
  flex: 1;
  font-weight: 500;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  transition: background var(--transition);
}

.tag-name-cell:hover {
  background: var(--color-bg);
}

.tag-attrs-cell {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  flex-shrink: 0;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  transition: background var(--transition);
}

.tag-attrs-cell:hover {
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

.tag-count-cell {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  flex-shrink: 0;
  min-width: 60px;
  text-align: right;
}

.tag-delete-btn {
  background: none;
  border: none;
  font-size: 13px;
  color: var(--color-muted);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  opacity: 0;
  line-height: 1;
}

.tag-row:hover .tag-delete-btn {
  opacity: 1;
}

.tag-delete-btn:hover:not(:disabled) {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.08);
}

.tag-delete-btn:disabled {
  cursor: not-allowed;
  opacity: 0.3 !important;
}

.tag-delete-confirm {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  display: flex;
  align-items: center;
  gap: 6px;
  animation: fade-in 0.15s ease;
}

.tag-confirm-yes,
.tag-confirm-no {
  padding: 3px 10px;
  font-size: var(--font-size-sm);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tag-confirm-yes {
  background: var(--color-danger);
  color: #fff;
}

.tag-confirm-yes:hover {
  background: var(--color-danger-hover);
}

.tag-confirm-no {
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

.tag-confirm-no:hover {
  background: var(--color-border-light);
}

.tag-new-input {
  border: none;
  box-shadow: none;
  background: transparent;
  padding: 4px 8px;
}

.tag-new-input:focus {
  box-shadow: none;
  background: transparent;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: translateX(0); }
}

/* --------------------------------------------------------------------------
   9. Tags Popup (tag selection on tasks)
   -------------------------------------------------------------------------- */

.tags-popup {
  position: absolute;
  z-index: 200;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  padding: 8px;
  min-width: 200px;
  max-height: 280px;
  overflow-y: auto;
}

.tags-popup .tag-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.tags-popup .tag-option:hover {
  background: var(--color-bg);
}

.tags-popup .tag-option.selected {
  background: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   10. Icon Picker
   -------------------------------------------------------------------------- */

.icon-picker-popup {
  width: 380px;
  max-height: 460px;
  display: flex;
  flex-direction: column;
  padding: 12px;
}

.icon-picker-search {
  margin-bottom: 8px;
}

.icon-picker-search-input {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.icon-picker-search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  background: var(--color-surface);
}

.icon-picker-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 20px 0;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.icon-picker-tabs {
  display: flex;
  gap: 3px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  overflow-x: auto;
  scrollbar-width: thin;
}

.icon-picker-tab {
  padding: 5px 10px;
  font-size: var(--font-size-xs);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-muted);
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-weight: 500;
}

.icon-picker-tab:hover {
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

.icon-picker-tab.active {
  background: var(--color-primary);
  color: #fff;
}

.icon-picker-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  padding: 2px;
}

.icon-picker-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  font-size: 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
}

.icon-picker-btn:hover {
  background: var(--color-bg);
  transform: scale(1.15);
}

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

.icon-picker-btn.selected {
  background: var(--color-primary-light);
  outline: 2px solid var(--color-primary);
}

.icon-picker-clear {
  margin-top: 8px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

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

/* --------------------------------------------------------------------------
   11. Attributes Editor Popup
   -------------------------------------------------------------------------- */

.attrs-editor-popup {
  width: 320px;
  padding: 14px;
}

.attrs-editor-title {
  font-weight: 600;
  font-size: var(--font-size-base);
  margin-bottom: 10px;
  color: var(--color-text);
}

.attrs-editor-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.attrs-editor-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.attrs-editor-row input,
.attrs-editor-row select {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  font-size: var(--font-size-sm);
}

.attrs-editor-remove {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 12px;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
  line-height: 1;
}

.attrs-editor-remove:hover {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.08);
}

.attrs-editor-add {
  background: none;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
  text-align: center;
}

.attrs-editor-add:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   12. Calendar
   -------------------------------------------------------------------------- */

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--color-border-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.calendar-day {
  background: var(--color-surface);
  min-height: 100px;
  padding: 8px 10px;
  font-size: var(--font-size-sm);
  position: relative;
  transition: background var(--transition-fast);
}

.calendar-day:hover {
  background: var(--color-surface-hover);
}

.calendar-day .day-number {
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.calendar-day.today {
  background: var(--color-primary-light);
}

.calendar-day.today .day-number {
  color: var(--color-primary);
  font-weight: 700;
}

.calendar-day.other-month {
  opacity: 0.35;
}

.calendar-event {
  display: block;
  padding: 2px 6px;
  margin-bottom: 3px;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-xs);
  background: var(--color-primary-light);
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: background var(--transition-fast);
  font-weight: 500;
}

.calendar-event:hover {
  background: var(--color-primary-glow);
}

/* --------------------------------------------------------------------------
   13. Toast Notifications
   -------------------------------------------------------------------------- */

#toasts {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 12px 18px;
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #fff;
  background: var(--color-text);
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  max-width: 360px;
}

.toast-error {
  background: var(--color-danger);
}

.toast-success {
  background: var(--color-success);
}

.toast.fade-out {
  animation: toast-out 0.2s ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
  }
}

/* --------------------------------------------------------------------------
   14. Scrollbar styling
   -------------------------------------------------------------------------- */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

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

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

/* --------------------------------------------------------------------------
   15. Responsive — mobile (<768px)
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {

  html, body {
    overflow-x: hidden;
    max-width: 100vw;
    --indent-size: 12px;
  }

  .app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }

  .hamburger {
    display: flex;
  }

  .topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    padding: 0 8px;
    gap: 6px;
  }

  .content {
    margin-top: var(--topbar-height);
    flex: 1;
    height: auto;
    overflow-y: visible;
    padding: 6px;
  }

  /* Hide button toggle, show select on mobile */
  .view-toggle {
    display: none;
  }
  .view-select {
    display: block;
  }

  .sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 150;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: none;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  /* content already has margin-top above */

  .task-item {
    padding: 8px 8px;
    gap: 4px;
  }

  .task-meta {
    gap: 3px;
    font-size: 11px;
  }

  .task-meta span {
    font-size: 11px;
  }

  .tag-badge {
    font-size: 10px;
    padding: 1px 5px;
  }

  .task-title {
    font-size: 13px;
  }

  .task-body {
    min-width: 0;
    overflow: hidden;
  }

  .search-input {
    max-width: none;
    flex: 1;
    font-size: 13px;
    padding: 5px 8px;
  }

  .calendar-day {
    min-height: 60px;
    padding: 4px;
  }

  /* Hide drag grip on touch devices */
  .task-grip {
    display: none;
  }

  .logo {
    font-size: 14px;
  }

  .icon-picker-popup {
    width: calc(100vw - 32px);
    left: 16px !important;
  }
}

/* Overlay behind sidebar on mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--topbar-height);
  background: rgba(0, 0, 0, 0.3);
  z-index: 140;
  backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
  display: block;
}

/* Also hide grip on touch-capable devices regardless of width */
@media (hover: none) and (pointer: coarse) {
  html {
    --indent-size: 12px;
  }
  .task-grip {
    display: none;
  }
  *:not(input):not(textarea):not([contenteditable]) {
    -webkit-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important;
  }
}

/* Tag ancestor — shown for context but greyed out */
.task-item.tag-ancestor {
  opacity: 0.45;
}
.task-item.tag-ancestor:hover {
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   Login screen
   -------------------------------------------------------------------------- */

.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  max-width: 380px;
  width: 100%;
}

.login-logo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.login-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.login-btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px var(--color-primary-glow);
}