@layer reset, tokens, base, layout, components, utilities, themes, responsive;

@layer tokens {
  :root {
    color-scheme: light;

    /* Primitive spacing: 4-point system */
    --space-0: 0;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 28px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* Radius */
    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 999px;

    /* Control and icon sizes */
    --control-compact: 36px;
    --control-default: 40px;
    --control-touch: 44px;
    --icon-sm: 16px;
    --icon-md: 18px;
    --icon-lg: 20px;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
    --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
    --type-display-size: 32px;
    --type-display-line: 36px;
    --type-title-1-size: 24px;
    --type-title-1-line: 30px;
    --type-title-2-size: 18px;
    --type-title-2-line: 23px;
    --type-headline-size: 16px;
    --type-headline-line: 21px;
    --type-body-size: 15px;
    --type-body-line: 22px;
    --type-callout-size: 14px;
    --type-callout-line: 20px;
    --type-caption-size: 13px;
    --type-caption-line: 18px;
    --type-micro-size: 11px;
    --type-micro-line: 14px;

    /* Motion */
    --duration-fast: 120ms;
    --duration-standard: 180ms;
    --duration-slow: 240ms;
    --ease-standard: cubic-bezier(.2,.8,.2,1);
    --ease-emphasized: cubic-bezier(.16,1,.3,1);

    /* Semantic surfaces */
    --surface-canvas: #f5f5f7;
    --surface-canvas-tint: #eeeef5;
    --surface-sidebar: rgba(252,252,254,.94);
    --surface-raised: #ffffff;
    --surface-task: #ffffff;
    --surface-control: #f1f1f5;
    --surface-control-hover: #ebebf0;
    --surface-overlay: #ffffff;
    --surface-hover: #f7f7fa;
    --surface-selected: #efedff;
    --surface-selected-strong: #e5e1ff;
    --surface-scrim: rgba(22,21,33,.34);

    /* Text */
    --text-primary: #1d1d1f;
    --text-secondary: #62626f;
    --text-tertiary: #6b6b78;
    --text-quaternary: #7e7e8a;
    --text-inverse: #ffffff;

    /* Borders */
    --border-subtle: #e8e8ed;
    --border-default: #d8d8e0;
    --border-strong: #bebec9;
    --border-focus: #6757f5;

    /* Accent */
    --accent-default: #6757f5;
    --accent-hover: #5849e5;
    --accent-pressed: #4d40cf;
    --accent-soft: #efedff;
    --accent-soft-strong: #e5e1ff;

    /* Feedback and priority */
    --feedback-success-fg: #176b4f;
    --feedback-success-bg: #e7f5ef;
    --feedback-warning-fg: #86520c;
    --feedback-warning-bg: #fff0d7;
    --feedback-danger-fg: #b92f52;
    --feedback-danger-bg: #fbe9ee;

    --priority-low-fg: #0066cc;
    --priority-low-accent: #007aff;
    --priority-low-bg: #eaf3ff;
    --priority-medium-fg: #9a4e00;
    --priority-medium-accent: #ff9500;
    --priority-medium-bg: #fff1e1;
    --priority-high-fg: #c9343a;
    --priority-high-accent: #ff3b30;
    --priority-high-bg: #fdebec;

    --due-today-fg: #9a4e00;
    --due-today-bg: #fff1e1;
    --overdue-fg: #c9343a;
    --overdue-bg: #fdebec;

    /* Elevation */
    --shadow-surface: 0 1px 2px rgba(30,29,52,.035), 0 8px 24px rgba(30,29,52,.045);
    --shadow-raised: 0 6px 20px rgba(30,29,52,.065);
    --shadow-raised-hover: 0 12px 30px rgba(30,29,52,.095);
    --shadow-overlay: 0 26px 72px rgba(30,29,52,.17);
    --shadow-focus: 0 0 0 4px rgba(103,87,245,.14);

    /* Component contracts */
    --sidebar-expanded: 280px;
    --sidebar-collapsed: 80px;
    --content-max: 1480px;
    --toolbar-control-height: 40px;
    --task-card-min: 244px;
    --task-dialog-width: 820px;
    --compact-dialog-width: 480px;
    --glass-blur-nav: 28px;
    --glass-blur-raised: 20px;
  }

  html[data-theme="dark"] {
    color-scheme: dark;
    --surface-canvas: #14131d;
    --surface-canvas-tint: #191824;
    --surface-sidebar: rgba(27,26,38,.94);
    --surface-raised: #1d1c29;
    --surface-task: #1d1c29;
    --surface-control: #252432;
    --surface-control-hover: #2b2a39;
    --surface-overlay: #232230;
    --surface-hover: #292836;
    --surface-selected: #312d54;
    --surface-selected-strong: #3a3564;
    --surface-scrim: rgba(0,0,0,.52);

    --text-primary: #f3f1fb;
    --text-secondary: #b9b6c8;
    --text-tertiary: #9692a8;
    --text-quaternary: #8d89a0;
    --text-inverse: #171620;

    --border-subtle: #2d2c3c;
    --border-default: #3a384b;
    --border-strong: #565268;
    --border-focus: #9a8eff;

    --accent-default: #9a8eff;
    --accent-hover: #ada4ff;
    --accent-pressed: #8174ee;
    --accent-soft: #2f2a50;
    --accent-soft-strong: #3a3363;

    --feedback-success-fg: #7bd8b3;
    --feedback-success-bg: #183b30;
    --feedback-warning-fg: #f1c079;
    --feedback-warning-bg: #422f1d;
    --feedback-danger-fg: #ff91a3;
    --feedback-danger-bg: #47232c;

    --priority-low-fg: #64a8ff;
    --priority-low-accent: #0a84ff;
    --priority-low-bg: rgba(10,132,255,.18);
    --priority-medium-fg: #ffb340;
    --priority-medium-accent: #ff9f0a;
    --priority-medium-bg: rgba(255,159,10,.18);
    --priority-high-fg: #ff6961;
    --priority-high-accent: #ff453a;
    --priority-high-bg: rgba(255,69,58,.18);

    --due-today-fg: #ffb340;
    --due-today-bg: rgba(255,159,10,.18);
    --overdue-fg: #ff6961;
    --overdue-bg: rgba(255,69,58,.18);

    --shadow-surface: 0 1px 2px rgba(0,0,0,.18), 0 8px 22px rgba(0,0,0,.12);
    --shadow-raised: 0 7px 22px rgba(0,0,0,.20);
    --shadow-raised-hover: 0 14px 34px rgba(0,0,0,.28);
    --shadow-overlay: 0 28px 80px rgba(0,0,0,.44);
    --shadow-focus: 0 0 0 4px rgba(154,142,255,.18);
  }

  html[data-theme="glass"] {
    color-scheme: light;
    --surface-canvas: #dfe7f9;
    --surface-canvas-tint: #d5dff5;
    --surface-sidebar: rgba(255,255,255,.62);
    --surface-raised: rgba(255,255,255,.84);
    --surface-task: rgba(255,255,255,.92);
    --surface-control: rgba(255,255,255,.68);
    --surface-control-hover: rgba(255,255,255,.78);
    --surface-overlay: rgba(248,251,255,.88);
    --surface-hover: rgba(255,255,255,.72);
    --surface-selected: rgba(239,237,255,.78);
    --surface-selected-strong: rgba(229,225,255,.86);
    --surface-scrim: rgba(30,37,65,.30);

    --text-primary: #19213a;
    --text-secondary: #596681;
    --text-tertiary: #63718c;
    --text-quaternary: #76839c;
    --text-inverse: #ffffff;

    --border-subtle: rgba(255,255,255,.58);
    --border-default: rgba(255,255,255,.78);
    --border-strong: rgba(111,126,161,.34);
    --border-focus: #5d67f6;

    --accent-default: #5d67f6;
    --accent-hover: #4b56e8;
    --accent-pressed: #4049cf;
    --accent-soft: rgba(239,237,255,.74);
    --accent-soft-strong: rgba(229,225,255,.88);

    --feedback-success-fg: #16664d;
    --feedback-success-bg: rgba(224,247,238,.90);
    --feedback-warning-fg: #7b4c0b;
    --feedback-warning-bg: rgba(255,240,215,.92);
    --feedback-danger-fg: #a92b4c;
    --feedback-danger-bg: rgba(251,233,238,.92);

    --priority-low-fg: #005bbb;
    --priority-low-accent: #007aff;
    --priority-low-bg: rgba(232,243,255,.92);
    --priority-medium-fg: #8a4700;
    --priority-medium-accent: #ff9500;
    --priority-medium-bg: rgba(255,240,222,.94);
    --priority-high-fg: #b4232c;
    --priority-high-accent: #ff3b30;
    --priority-high-bg: rgba(253,232,234,.93);

    --due-today-fg: #8a4700;
    --due-today-bg: rgba(255,240,222,.94);
    --overdue-fg: #b4232c;
    --overdue-bg: rgba(253,232,234,.93);

    --shadow-surface: 0 1px 2px rgba(51,71,126,.06), 0 10px 28px rgba(51,71,126,.08), inset 0 1px 0 rgba(255,255,255,.72);
    --shadow-raised: 0 14px 36px rgba(51,71,126,.12), inset 0 1px 0 rgba(255,255,255,.78);
    --shadow-raised-hover: 0 18px 46px rgba(45,66,122,.17), inset 0 1px 0 rgba(255,255,255,.84);
    --shadow-overlay: 0 30px 90px rgba(42,61,116,.24), inset 0 1px 0 rgba(255,255,255,.82);
    --shadow-focus: 0 0 0 4px rgba(93,103,246,.16);
  }
}

@layer reset, tokens, base, layout, components, utilities, themes, responsive;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { min-height: 100%; }
  body { margin: 0; min-height: 100vh; }
  button, input, textarea, select { font: inherit; }
  button { color: inherit; }
  button, [role="button"] { -webkit-tap-highlight-color: transparent; }
  svg { display: block; }
}

@layer base {
  html { background: var(--surface-canvas); }

  body {
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--type-body-size);
    line-height: var(--type-body-line);
    background:
      radial-gradient(circle at 82% 8%, color-mix(in srgb, var(--accent-default) 9%, transparent), transparent 30rem),
      radial-gradient(circle at 9% 92%, color-mix(in srgb, var(--feedback-success-fg) 6%, transparent), transparent 26rem),
      var(--surface-canvas);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    font-kerning: normal;
  }

  html[data-theme="dark"] body {
    background:
      radial-gradient(circle at 78% 10%, rgba(103,87,245,.12), transparent 29rem),
      radial-gradient(circle at 11% 90%, rgba(40,172,128,.08), transparent 25rem),
      var(--surface-canvas);
  }

  html[data-theme="glass"] body {
    background:
      radial-gradient(circle at 13% 18%, rgba(255,171,211,.62), transparent 23rem),
      radial-gradient(circle at 84% 12%, rgba(125,181,255,.70), transparent 27rem),
      radial-gradient(circle at 70% 88%, rgba(141,249,213,.44), transparent 25rem),
      linear-gradient(145deg, #e8edff 0%, #cfdaf8 48%, #dff7f1 100%);
    background-attachment: fixed;
  }

  h1, h2, h3, p { margin: 0; }

  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible,
  select:focus-visible,
  [tabindex]:focus-visible,
  summary:focus-visible {
    outline: 0;
    box-shadow: var(--shadow-focus);
  }

  ::selection { background: var(--accent-soft-strong); color: var(--text-primary); }

  .hidden { display: none !important; }
  body[data-mode="easy"] .pro-only { display: none !important; }

  .ambient {
    display: none;
    position: fixed;
    pointer-events: none;
    z-index: 0;
    border-radius: 50%;
    filter: blur(14px);
  }
  html[data-theme="glass"] .ambient { display: block; }
  .ambient-a { width: 240px; height: 240px; left: 22%; top: 7%; background: rgba(255,255,255,.34); }
  .ambient-b { width: 320px; height: 320px; right: 5%; bottom: 4%; background: rgba(167,145,255,.18); }

  .glass-panel {
    background: var(--surface-raised);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-surface);
  }

  html[data-theme="glass"] .glass-panel {
    backdrop-filter: blur(var(--glass-blur-raised)) saturate(145%);
    -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(145%);
  }
}

@layer layout {
  .app-shell {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: var(--sidebar-expanded) minmax(0, 1fr);
    min-height: 100vh;
    transition: grid-template-columns var(--duration-slow) var(--ease-emphasized);
  }

  body.sidebar-collapsed .app-shell { grid-template-columns: var(--sidebar-collapsed) minmax(0, 1fr); }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    height: calc(100vh - var(--space-4));
    min-width: 0;
    margin: var(--space-2);
    padding: var(--space-4);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    background: var(--surface-sidebar);
    box-shadow: var(--shadow-raised);
    overflow: visible;
  }

  html[data-theme="glass"] .sidebar {
    backdrop-filter: blur(var(--glass-blur-nav)) saturate(155%);
    -webkit-backdrop-filter: blur(var(--glass-blur-nav)) saturate(155%);
  }

  .sidebar-scroll {
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-2) 0 var(--space-3);
    scrollbar-width: thin;
    scrollbar-color: var(--border-default) transparent;
  }

  .sidebar-bottom {
    display: grid;
    grid-auto-rows: max-content;
    align-content: start;
    gap: 2px;
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-subtle);
  }

  .main {
    width: 100%;
    max-width: var(--content-max);
    margin: 0 auto;
    padding: var(--space-8) var(--space-8) calc(var(--space-12) + env(safe-area-inset-bottom));
    min-width: 0;
  }

  .topbar {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
  }

  .title-wrap { min-width: 0; flex: 1; }
  .top-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-2); flex-wrap: wrap; }

  .summary-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-5);
  }

  .toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin: 0 0 var(--space-5);
  }

  .toolbar-right { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }

  .content-region { min-height: 180px; }
  .task-list { display: grid; gap: var(--space-3); }
  .task-list.cards {
    grid-template-columns: repeat(auto-fill, minmax(var(--task-card-min), 1fr));
    gap: var(--space-4);
    align-items: stretch;
  }

  .board {
    display: grid;
    grid-template-columns: repeat(4, minmax(240px, 1fr));
    gap: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scroll-snap-type: x proximity;
  }

  .calendar-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin: 0 0 var(--space-4);
  }

  .mobile-quick-add, .mobile-overlay, .mobile-sidebar-button { display: none; }
}

@layer components {
  /* Brand, mode, and navigation */
  .brand {
    position: relative;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    align-items: center;
    gap: var(--space-3);
    min-height: 52px;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(145deg, var(--accent-default), var(--accent-hover));
    box-shadow: 0 9px 20px color-mix(in srgb, var(--accent-default) 22%, transparent);
  }
  .brand-mark svg { width: 25px; height: 25px; }
  html[data-theme="dark"] .brand-mark {
    background: linear-gradient(145deg, #6757f5, #8f83ff);
    box-shadow: 0 9px 20px rgba(103,87,245,.28);
  }
  .brand-name { font: 700 20px/24px var(--font-display); letter-spacing: -.035em; text-transform: lowercase; }
  .brand-tag { color: var(--text-tertiary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }

  .sidebar-collapse-button {
    position: absolute;
    right: -31px;
    top: 10px;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: var(--surface-raised);
    box-shadow: var(--shadow-raised);
    color: var(--text-tertiary);
    cursor: pointer;
    z-index: 3;
    transition: transform .18s ease, background .16s ease, color .16s ease;
  }
  .sidebar-collapse-button:hover { color: var(--text-primary); background: var(--surface-hover); transform: translateY(-1px); }
  .sidebar-collapse-button svg { width: 16px; height: 16px; transition: transform .2s ease; }

  .mode-control { margin-top: var(--space-3); }
  .mode-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-1);
    padding: var(--space-1);
    border-radius: var(--radius-md);
    background: var(--surface-control);
  }
  .mode-option {
    min-height: var(--control-compact);
    padding: 0 var(--space-3);
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--duration-fast), color var(--duration-fast), box-shadow var(--duration-fast);
  }
  .mode-option:hover { color: var(--accent-default); }
  .mode-option.active {
    background: var(--surface-raised);
    color: var(--accent-default);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(30,29,52,.08);
  }
  .mode-caption { margin-top: var(--space-1); color: var(--text-tertiary); text-align: center; font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }

  .sidebar-section + .sidebar-section { margin-top: var(--space-4); }
  .sidebar-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 22px;
    margin-bottom: 2px;
    padding: 0 var(--space-2);
    color: var(--text-tertiary);
    font: 700 var(--type-micro-size)/var(--type-micro-line) var(--font-sans);
    letter-spacing: .11em;
    text-transform: uppercase;
  }

  .list-nav, .smart-nav { display: grid; gap: 2px; }
  .list-nav-item, .smart-nav-item, .sidebar-action {
    width: 100%;
    min-height: var(--control-default);
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-3);
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    text-align: left;
    cursor: pointer;
    transition: background var(--duration-fast), color var(--duration-fast), transform var(--duration-fast);
  }
  .list-nav-item:hover, .smart-nav-item:hover, .sidebar-action:hover { background: var(--surface-hover); color: var(--text-primary); }
  .list-nav-item:active, .smart-nav-item:active, .sidebar-action:active { transform: scale(.99); }
  .list-nav-item.active, .smart-nav-item.active { background: var(--surface-selected); color: var(--accent-hover); font-weight: 600; }
  .list-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--list-color, var(--accent-default)); box-shadow: 0 0 0 4px color-mix(in srgb, var(--list-color, var(--accent-default)) 12%, transparent); }
  .list-nav-title, .sidebar-action-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-icon, .sidebar-action > svg { width: var(--icon-md); height: var(--icon-md); display: grid; place-items: center; color: var(--text-tertiary); }
  .nav-icon svg, .sidebar-action > svg { width: 100%; height: 100%; }
  .list-count, .side-badge {
    min-width: 24px;
    height: 24px;
    display: inline-grid;
    place-items: center;
    padding: 0 7px;
    border-radius: var(--radius-full);
    background: var(--surface-control);
    color: var(--text-tertiary);
    font: 600 var(--type-caption-size)/1 var(--font-sans);
    font-variant-numeric: tabular-nums;
  }
  .list-nav-item.active .list-count, .smart-nav-item.active .list-count { background: var(--surface-selected-strong); color: var(--accent-hover); }
  .sidebar-action { grid-template-columns: 22px minmax(0, 1fr) auto; }
  .privacy-note { margin: var(--space-2) var(--space-3) 0; color: var(--text-tertiary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  .creator-footer { margin: var(--space-1) var(--space-3) 0; color: var(--text-secondary); font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); text-align: left; }
  .creator-footer span { color: var(--priority-high-fg); }
  .creator-footer a { color: inherit; text-decoration: none; text-underline-offset: 2px; }
  .creator-footer a:hover { color: var(--accent-hover); text-decoration: underline; }

  body.sidebar-collapsed .brand { grid-template-columns: 44px; justify-content: center; }
  body.sidebar-collapsed .brand-copy,
  body.sidebar-collapsed .mode-control,
  body.sidebar-collapsed .sidebar-heading > span,
  body.sidebar-collapsed .list-nav-title,
  body.sidebar-collapsed .sidebar-action-label,
  body.sidebar-collapsed .privacy-note,
  body.sidebar-collapsed .creator-footer,
  body.sidebar-collapsed .list-count,
  body.sidebar-collapsed .side-badge,
  body.sidebar-collapsed .smart-nav-item > span:not(.nav-icon) { display: none; }
  body.sidebar-collapsed .sidebar {
    padding-inline: var(--space-3);
    grid-template-rows: auto minmax(0, 1fr) auto;
  }
  body.sidebar-collapsed .sidebar-scroll {
    padding-block: var(--space-3);
    overflow-x: hidden;
  }
  body.sidebar-collapsed .sidebar-heading { justify-content: center; padding: 0; }
  body.sidebar-collapsed .sidebar-heading .icon-button { margin: 0; }
  body.sidebar-collapsed .list-nav,
  body.sidebar-collapsed .smart-nav { justify-items: center; }
  body.sidebar-collapsed .list-nav-item,
  body.sidebar-collapsed .smart-nav-item,
  body.sidebar-collapsed .sidebar-action {
    width: 44px;
    min-height: 44px;
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 0;
    margin-inline: auto;
  }
  body.sidebar-collapsed .list-nav-item.active,
  body.sidebar-collapsed .smart-nav-item.active { border-radius: var(--radius-md); }
  body.sidebar-collapsed .sidebar-bottom {
    grid-auto-rows: 44px;
    align-content: start;
    gap: var(--space-1);
    padding-top: var(--space-3);
  }
  body.sidebar-collapsed .sidebar-action > svg,
  body.sidebar-collapsed .nav-icon { width: var(--icon-md); height: var(--icon-md); }
  body.sidebar-collapsed .sidebar-collapse-button { right: -31px; }
  body.sidebar-collapsed .sidebar-collapse-button svg { transform: rotate(180deg); }

  body.sidebar-collapsed .brand,
  body.sidebar-collapsed .sidebar-scroll,
  body.sidebar-collapsed .sidebar-section,
  body.sidebar-collapsed .list-nav,
  body.sidebar-collapsed .smart-nav,
  body.sidebar-collapsed .sidebar-bottom { width: 44px; margin-inline: auto; }
  body.sidebar-collapsed .app-shell { grid-template-columns: 80px minmax(0, 1fr); }
  body.sidebar-collapsed .sidebar { padding-inline: 9px; }

  /* Buttons */
  .icon-button, .ghost-button, .primary-button, .danger-button, .filter-button, .seg-button, .chip-button {
    border: 0;
    cursor: pointer;
    transition: transform var(--duration-fast), background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast), box-shadow var(--duration-fast), opacity var(--duration-fast);
  }
  .icon-button:hover, .ghost-button:hover, .primary-button:hover, .danger-button:hover, .filter-button:hover, .seg-button:hover, .chip-button:hover { transform: translateY(-1px); }
  .icon-button:active, .ghost-button:active, .primary-button:active, .danger-button:active, .filter-button:active, .seg-button:active, .chip-button:active { transform: translateY(0) scale(.985); }
  .icon-button:disabled, .ghost-button:disabled, .primary-button:disabled, .danger-button:disabled { opacity: .45; cursor: not-allowed; transform: none; }

  .icon-button {
    width: var(--control-default);
    height: var(--control-default);
    display: grid;
    place-items: center;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-tertiary);
  }
  .icon-button:hover { background: var(--surface-control); color: var(--text-primary); }
  .icon-button svg { width: var(--icon-md); height: var(--icon-md); }
  .icon-button.small { width: 32px; height: 32px; border-radius: var(--radius-xs); }

  .ghost-button, .primary-button, .danger-button {
    min-height: var(--control-default);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0 var(--space-4);
    border-radius: var(--radius-sm);
    font-weight: 600;
    white-space: nowrap;
  }
  .ghost-button { background: var(--surface-control); color: var(--text-primary); border: 1px solid var(--border-subtle); }
  .ghost-button:hover { background: var(--surface-control-hover); border-color: var(--border-default); }
  .primary-button { background: var(--accent-default); color: var(--text-inverse); box-shadow: 0 5px 14px color-mix(in srgb, var(--accent-default) 18%, transparent); }
  .primary-button:hover { background: var(--accent-hover); box-shadow: 0 8px 20px color-mix(in srgb, var(--accent-default) 23%, transparent); }
  .primary-button:active { background: var(--accent-pressed); }
  .button-icon { display: inline-grid; place-items: center; line-height: 0; }
  .button-icon svg { width: 16px; height: 16px; display: block; }
  .composer-submit { padding-inline: 14px; gap: 6px; }
  .composer-submit .button-icon svg { width: 14px; height: 14px; }
  .primary-button.round svg { width: 20px; height: 20px; display: block; }
  .danger-button { background: var(--feedback-danger-bg); color: var(--feedback-danger-fg); }
  .danger-button:hover { background: color-mix(in srgb, var(--feedback-danger-bg) 84%, var(--feedback-danger-fg)); }
  .ghost-button.compact, .primary-button.compact { min-height: var(--control-compact); padding: 0 var(--space-3); font-size: var(--type-callout-size); }
  .primary-button.round { width: 46px; height: 46px; min-height: 46px; padding: 0; border-radius: 50%; font-size: 22px; }
  .quiet-share { background: transparent; border-color: transparent; color: var(--text-tertiary); box-shadow: none; padding-inline: var(--space-3); }
  .quiet-share:hover { background: var(--surface-control); color: var(--text-primary); border-color: var(--border-subtle); box-shadow: none; }
  .quiet-share svg { width: var(--icon-md); height: var(--icon-md); }

  /* Header */
  .status-dot { width: 6px; height: 6px; flex: none; border-radius: 50%; background: var(--feedback-success-fg); box-shadow: 0 0 0 3px var(--feedback-success-bg); }
  .list-title-input {
    display: block;
    width: min(100%, 760px);
    margin-top: 0;
    padding: 0;
    border: 0;
    border-radius: var(--radius-xs);
    background: transparent;
    color: var(--text-primary);
    font: 700 var(--type-display-size)/var(--type-display-line) var(--font-display);
    letter-spacing: -.025em;
    outline: 0;
  }
  .list-title-input:not([readonly]):hover { background: color-mix(in srgb, var(--surface-control) 55%, transparent); }
  .list-title-input:not([readonly]):focus { padding-inline: var(--space-2); margin-left: calc(var(--space-2) * -1); background: var(--surface-control); box-shadow: var(--shadow-focus); }
  .header-meta { display: flex; align-items: center; gap: var(--space-2); min-height: var(--type-callout-line); margin-top: var(--space-1); color: var(--text-secondary); font-size: var(--type-callout-size); line-height: var(--type-callout-line); }
  .subtitle { margin: 0; color: inherit; font: inherit; }
  .header-meta-separator { color: var(--text-quaternary); }
  .save-state { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--text-tertiary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); white-space: nowrap; }


  .list-count, .side-badge, .summary-value, .filter-count, .calendar-date,
  input[type="date"], input[type="datetime-local"], .subtask-progress,
  .field-label-row span { font-variant-numeric: tabular-nums; }

  /* Backup and summary */
  .backup-banner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-3);
    padding: 12px 14px;
    margin-bottom: var(--space-5);
    border-radius: var(--radius-md);
    box-shadow: none;
  }
  .backup-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent-hover); }
  .backup-icon svg { width: 18px; height: 18px; }
  .backup-copy { min-width: 0; }
  .backup-copy strong { display: block; color: var(--text-primary); font: 600 var(--type-callout-size)/var(--type-callout-line) var(--font-sans); }
  .backup-banner p { margin: 2px 0 0; color: var(--text-secondary); font-size: var(--type-caption-size); line-height: var(--type-caption-line); }
  .backup-actions { display: flex; align-items: center; gap: var(--space-1); }
  .backup-action { min-height: 32px; padding: 0 11px; border: 0; border-radius: var(--radius-xs); background: transparent; color: var(--text-secondary); font-size: var(--type-caption-size); font-weight: 500; cursor: pointer; transition: color var(--duration-fast), background var(--duration-fast); }
  .backup-action:hover { color: var(--text-primary); background: var(--surface-hover); }
  .backup-primary { color: var(--accent-hover); background: var(--accent-soft); font-weight: 600; }
  .backup-primary:hover { color: var(--accent-pressed); background: var(--accent-soft-strong); }

  .summary-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    box-shadow: none;
  }
  .summary-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: var(--radius-sm); }
  .summary-icon svg { width: var(--icon-md); height: var(--icon-md); }
  .summary-icon.purple { background: var(--accent-soft); color: var(--accent-default); }
  .summary-icon.green { background: var(--feedback-success-bg); color: var(--feedback-success-fg); }
  .summary-icon.orange { background: var(--feedback-warning-bg); color: var(--feedback-warning-fg); }
  .summary-value { font: 700 var(--type-headline-size)/var(--type-headline-line) var(--font-display); font-variant-numeric: tabular-nums; }
  .summary-label { color: var(--text-secondary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }

  /* Composer */
  .composer {
    padding: var(--space-4);
    margin-bottom: var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-surface);
  }
  .composer-main { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; align-items: center; gap: var(--space-3); min-height: 44px; }
  .composer-plus { width: 40px; height: 40px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--accent-default); line-height: 0; }
  .composer-plus svg { width: 20px; height: 20px; display: block; }
  .composer-input { width: 100%; padding: var(--space-2) 0; border: 0; outline: 0; background: transparent; color: var(--text-primary); font-size: var(--type-headline-size); line-height: var(--type-headline-line); font-weight: 500; letter-spacing: -.01em; }
  .composer-input::placeholder { color: var(--text-quaternary); }
  .composer-options { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-3); padding-top: var(--space-3); border-top: 1px solid var(--border-subtle); }
  .quick-field {
    min-height: var(--control-compact);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--surface-control);
    color: var(--text-tertiary);
    font-size: var(--type-caption-size);
    line-height: var(--type-caption-line);
  }
  .quick-field:focus-within { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .quick-field input, .quick-field select { min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text-primary); }
  .quick-field input { width: 124px; }
  .quick-field select { width: 108px; }
  .composer-hint { margin-left: auto; color: var(--text-tertiary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  kbd { padding: 1px 6px; border: 1px solid var(--border-default); border-bottom-width: 2px; border-radius: 6px; background: var(--surface-control); color: var(--text-secondary); font: 600 var(--type-micro-size)/var(--type-micro-line) var(--font-sans); }
  body[data-mode="easy"] .composer { padding-block: var(--space-4); }
  body[data-mode="easy"] .composer-main { grid-template-columns: 36px minmax(0,1fr) auto; }
  body[data-mode="easy"] .composer-plus { width: 36px; height: 36px; border-radius: 10px; }

  /* Task toolbar */
  .toolbar.glass-panel { background: transparent; border: 0; box-shadow: none; }
  .filter-group { display: flex; align-items: center; gap: var(--space-1); min-width: 0; overflow-x: auto; scrollbar-width: none; }
  .filter-group::-webkit-scrollbar { display: none; }
  .filter-button {
    min-height: var(--toolbar-control-height);
    padding: 0 var(--space-3);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
  }
  .filter-button:hover { background: var(--surface-hover); color: var(--text-primary); }
  .filter-button.active { background: var(--accent-soft); color: var(--accent-hover); font-weight: 600; }
  .filter-count { margin-left: var(--space-1); color: inherit; opacity: .72; font-size: var(--type-caption-size); font-variant-numeric: tabular-nums; }

  .search-box {
    height: var(--toolbar-control-height);
    min-width: 220px;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--surface-control);
    color: var(--text-tertiary);
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast), background var(--duration-fast);
  }
  .search-box:focus-within { border-color: var(--border-focus); box-shadow: var(--shadow-focus); background: var(--surface-raised); }
  .search-box span, .search-box svg { width: var(--icon-md); height: var(--icon-md); flex: none; }
  .search-box input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text-tertiary); font-size: var(--type-callout-size); font-weight: 400; }
  .search-box input:not(:placeholder-shown) { color: var(--text-primary); }
  .search-box input::placeholder { color: var(--text-tertiary); }
  .search-box button { display: none; width: 24px; height: 24px; border: 0; border-radius: 50%; background: var(--surface-control-hover); color: var(--text-tertiary); cursor: pointer; }
  .search-box.has-text button { display: grid; place-items: center; }

  .select-control {
    height: var(--toolbar-control-height);
    min-width: 150px;
    padding: 0 36px 0 var(--space-3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background-color: var(--surface-control);
    color: var(--text-tertiary);
    font-size: var(--type-callout-size);
    font-weight: 400;
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--text-tertiary) 50%), linear-gradient(135deg, var(--text-tertiary) 50%, transparent 50%);
    background-position: calc(100% - 16px) 17px, calc(100% - 11px) 17px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
  }
  .select-control:focus { border-color: var(--border-focus); outline: 0; box-shadow: var(--shadow-focus); }

  .view-switch {
    height: var(--toolbar-control-height);
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--surface-control);
  }
  .seg-button { width: 34px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: transparent; color: var(--text-tertiary); }
  .seg-button:hover { background: var(--surface-hover); color: var(--text-primary); }
  .seg-button.active { background: var(--surface-raised); color: var(--accent-default); box-shadow: 0 2px 8px rgba(30,29,52,.08); }
  .seg-button svg { width: var(--icon-md); height: var(--icon-md); }

  /* Tasks: shared */
  .task-shell { position: relative; overflow: hidden; border-radius: var(--radius-md); }
  .swipe-underlay { position: absolute; inset: 0; z-index: 0; opacity: 0; pointer-events: none; }
  .swipe-action { position: absolute; inset-block: 0; width: 52%; display: flex; align-items: center; gap: var(--space-2); color: #fff; font-size: var(--type-caption-size); font-weight: 700; opacity: 0; transition: opacity var(--duration-fast); }
  .swipe-action svg { width: var(--icon-md); height: var(--icon-md); }
  .swipe-complete { left: 0; justify-content: flex-start; padding-left: var(--space-5); background: linear-gradient(90deg, #168a69, #24a77f); }
  .swipe-snooze { right: 0; justify-content: flex-end; padding-right: var(--space-5); background: linear-gradient(90deg, #c7872c, #a96611); }
  .task-shell.swiping-right .swipe-underlay, .task-shell.swiping-left .swipe-underlay { opacity: 1; }
  .task-shell.swiping-right .swipe-complete, .task-shell.swiping-left .swipe-snooze { opacity: 1; }

  .task-item {
    position: relative;
    z-index: 1;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--surface-task);
    box-shadow: none;
    transition: transform var(--duration-standard) var(--ease-standard), box-shadow var(--duration-standard), border-color var(--duration-standard), opacity var(--duration-standard);
    touch-action: pan-y;
  }
  html[data-theme="glass"] .task-item { backdrop-filter: blur(12px) saturate(125%); -webkit-backdrop-filter: blur(12px) saturate(125%); }
  .task-item:hover { transform: translateY(-1px); box-shadow: var(--shadow-raised); border-color: color-mix(in srgb, var(--accent-default) 18%, var(--border-subtle)); }
  .task-item.dragging { opacity: .45; }
  .task-item.drag-over { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .task-item { transition: opacity var(--duration-slow) var(--ease-standard), transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard); }
  .task-item .task-title { text-decoration: line-through; text-decoration-color: transparent; text-decoration-thickness: 1.5px; transition: color var(--duration-slow) var(--ease-standard), text-decoration-color var(--duration-slow) var(--ease-standard); }
  .task-item.completed { opacity: .66; }
  .task-item.completed .task-title { color: var(--text-tertiary); text-decoration-color: currentColor; }
  .task-item.just-completed .task-check,
  .task-item.just-reopened .task-check { animation: check-spring 320ms var(--ease-emphasized); }
  .task-item.just-completed { animation: task-settle 340ms var(--ease-emphasized); }
  .task-item.leaving { transition: opacity 300ms var(--ease-standard) 120ms; opacity: .25; }
  @keyframes check-spring {
    0% { transform: scale(1); }
    35% { transform: scale(1.28); }
    70% { transform: scale(.94); }
    100% { transform: scale(1); }
  }
  @keyframes task-settle {
    0% { transform: translateY(0); }
    40% { transform: translateY(2px) scale(.995); }
    100% { transform: translateY(0) scale(1); }
  }
  /* Skip layout and paint for offscreen rows: keeps long lists fast without virtualisation */
  .task-list > .task-shell { content-visibility: auto; contain-intrinsic-size: auto 72px; }
  .task-list.cards > .task-shell { content-visibility: auto; contain-intrinsic-size: auto 200px; }
  .field-hint { display: block; margin-top: var(--space-1); color: var(--text-tertiary); font: 500 var(--type-micro-size)/var(--type-micro-line) var(--font-sans); }
  .task-accent { position: absolute; inset: 0 auto 0 0; width: 3px; background: transparent; }
  .task-item[data-priority="high"] .task-accent { background: var(--priority-high-accent); }
  .task-item[data-priority="medium"] .task-accent { background: var(--priority-medium-accent); }
  .task-item[data-priority="low"] .task-accent { background: var(--priority-low-accent); }

  .task-check-wrap { display: flex; align-items: center; gap: var(--space-2); }
  .drag-handle { width: 18px; color: var(--text-quaternary); cursor: grab; }
  .drag-handle svg { width: 18px; height: 18px; }
  .task-check { appearance: none; width: 22px; height: 22px; display: grid; place-items: center; margin: 0; border: 2px solid var(--border-strong); border-radius: 7px; background: var(--surface-raised); cursor: pointer; transition: border-color var(--duration-fast), background var(--duration-fast), transform var(--duration-fast); }
  .task-check:hover { border-color: var(--accent-default); transform: scale(1.04); }
  .task-check:checked { border-color: var(--accent-default); background: var(--accent-default); }
  .task-check::after { content: ""; width: 9px; height: 5px; border: solid #fff; border-width: 0 0 2px 2px; transform: rotate(-45deg) translate(1px,-1px) scale(0); transition: transform var(--duration-fast); }
  .task-check:checked::after { transform: rotate(-45deg) translate(1px,-1px) scale(1); }

  .task-content { min-width: 0; cursor: pointer; }
  .task-title { color: var(--text-primary); font: 600 var(--type-headline-size)/var(--type-headline-line) var(--font-sans); letter-spacing: -.01em; overflow-wrap: anywhere; }
  .task-notes { margin-top: var(--space-1); color: var(--text-secondary); font: 400 var(--type-callout-size)/var(--type-callout-line) var(--font-sans); white-space: pre-line; overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; }
  .task-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: var(--space-2); }
  .meta-pill {
    min-height: 24px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 0 var(--space-2);
    border-radius: var(--radius-full);
    background: var(--surface-control);
    color: var(--text-secondary);
    font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans);
  }
  .meta-pill svg { width: 13px; height: 13px; }
  .meta-pill.overdue { background: var(--overdue-bg); color: var(--overdue-fg); }
  .meta-pill.today { background: var(--due-today-bg); color: var(--due-today-fg); }
  .meta-pill.priority-low { background: var(--priority-low-bg); color: var(--priority-low-fg); }
  .meta-pill.priority-medium { background: var(--priority-medium-bg); color: var(--priority-medium-fg); }
  .meta-pill.priority-high { background: var(--priority-high-bg); color: var(--priority-high-fg); }
  .meta-pill.list-pill { color: var(--list-color, var(--accent-default)); }
  .meta-pill.snooze-pill { background: var(--accent-soft); color: var(--accent-hover); }

  .task-actions { display: flex; align-items: center; gap: 0; opacity: .12; transition: opacity var(--duration-fast); }
  .task-item:hover .task-actions, .task-actions:focus-within { opacity: 1; }
  .task-actions .icon-button { width: 34px; height: 34px; border-radius: 10px; }

  .subtask-progress { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: var(--space-2); margin-top: var(--space-2); color: var(--text-tertiary); font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  .progress-track { height: 5px; overflow: hidden; border-radius: var(--radius-full); background: color-mix(in srgb, var(--text-tertiary) 14%, transparent); }
  .progress-fill { height: 100%; border-radius: inherit; background: var(--accent-default); }

  /* Separate row presentation */
  .task-row-view .task-row { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: var(--space-3); padding: var(--space-4); }
  .task-row-view .task-notes { -webkit-line-clamp: 1; }

  /* Separate card presentation */
  .task-list.cards .task-shell { min-height: 240px; height: 100%; }
  .task-card-view { min-height: 240px; height: 100%; }
  .task-card-body { min-height: 240px; height: 100%; display: flex; flex-direction: column; padding: var(--space-5) var(--space-5) var(--space-4); }
  .task-card-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
  .task-card-header .task-check-wrap { width: 100%; justify-content: space-between; }
  .task-card-copy { flex: 1; min-height: 0; margin-top: var(--space-4); }
  .task-card-view .task-title { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
  .task-card-view .task-notes { margin-top: var(--space-2); -webkit-line-clamp: 3; }
  .task-card-view .task-meta { margin-top: var(--space-3); }
  .task-card-footer { display: flex; justify-content: flex-end; align-items: center; margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--border-subtle); }
  .task-card-view .task-actions { opacity: .5; }
  .task-card-view:hover .task-actions { opacity: 1; }

  /* Board */
  .board-column { min-height: 420px; padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--surface-raised) 72%, transparent); scroll-snap-align: start; }
  html[data-theme="glass"] .board-column { backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
  .board-column.drag-over { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .board-column-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); padding: var(--space-1) var(--space-1) var(--space-3); font-weight: 700; }
  .board-count { min-width: 24px; padding: 2px 7px; border-radius: var(--radius-full); background: var(--surface-control); color: var(--text-tertiary); text-align: center; font-size: var(--type-caption-size); font-variant-numeric: tabular-nums; }
  .board-cards { display: grid; gap: var(--space-2); min-height: 350px; }
  .board-card { padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-task); box-shadow: none; cursor: grab; transition: transform var(--duration-standard), box-shadow var(--duration-standard); }
  .board-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-raised-hover); }
  .board-card .task-notes { -webkit-line-clamp: 2; }
  .board-card-footer { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); margin-top: var(--space-3); }
  .board-card-footer small { color: var(--text-tertiary); }

  /* Calendar */
  .calendar { overflow: hidden; border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); background: var(--surface-raised); box-shadow: var(--shadow-surface); }
  html[data-theme="glass"] .calendar { backdrop-filter: blur(var(--glass-blur-raised)); -webkit-backdrop-filter: blur(var(--glass-blur-raised)); }
  .calendar-weekdays { display: grid; grid-template-columns: repeat(7,1fr); border-bottom: 1px solid var(--border-subtle); background: var(--surface-control); }
  .calendar-weekdays div { padding: var(--space-3) var(--space-2); color: var(--text-tertiary); text-align: center; font: 700 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  .calendar-grid { display: grid; grid-template-columns: repeat(7,1fr); }
  .calendar-day { min-height: 118px; padding: var(--space-2); border-right: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); background: var(--surface-raised); }
  .calendar-day:nth-child(7n) { border-right: 0; }
  .calendar-day.outside { background: color-mix(in srgb, var(--surface-control) 50%, var(--surface-raised)); color: var(--text-quaternary); }
  .calendar-day.today { background: color-mix(in srgb, var(--accent-soft) 44%, var(--surface-raised)); }
  .calendar-date { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; color: var(--text-secondary); font: 600 var(--type-caption-size)/1 var(--font-sans); font-variant-numeric: tabular-nums; }
  .calendar-day.today .calendar-date { background: var(--accent-default); color: var(--text-inverse); }
  .calendar-tasks { display: grid; gap: var(--space-1); margin-top: var(--space-1); }
  .calendar-task { overflow: hidden; padding: 4px 6px; border: 0; border-left: 3px solid var(--task-color, var(--accent-default)); border-radius: 7px; background: var(--surface-control); color: var(--text-primary); text-align: left; white-space: nowrap; text-overflow: ellipsis; font: 600 11px/14px var(--font-sans); cursor: pointer; }
  .calendar-task:hover { background: var(--surface-control-hover); }
  .calendar-more { padding-inline: 5px; color: var(--text-tertiary); font-size: var(--type-caption-size); }
  .calendar-toolbar strong { min-width: 170px; text-align: center; font: 600 var(--type-headline-size)/var(--type-headline-line) var(--font-display); }

  /* Empty state */
  .empty-state { display: none; min-height: 260px; place-items: center; align-content: center; gap: var(--space-2); padding: var(--space-8); border-radius: var(--radius-xl); text-align: center; }
  .empty-state.show { display: grid; }
  .empty-art { width: 56px; height: 56px; display: grid; place-items: center; margin-bottom: var(--space-2); border-radius: 18px; background: var(--accent-soft); color: var(--accent-default); font-size: 24px; }
  .empty-state h2 { font: 700 var(--type-title-2-size)/var(--type-title-2-line) var(--font-display); }
  .empty-state p { color: var(--text-secondary); }

  /* Dialogs and forms */
  dialog {
    width: min(var(--task-dialog-width), calc(100vw - 32px));
    max-height: calc(100vh - 32px);
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    background: var(--surface-overlay);
    color: var(--text-primary);
    box-shadow: var(--shadow-overlay);
    overflow: hidden;
  }
  html[data-theme="glass"] dialog { backdrop-filter: blur(32px) saturate(150%); -webkit-backdrop-filter: blur(32px) saturate(150%); }
  dialog::backdrop { background: var(--surface-scrim); backdrop-filter: blur(5px); }
  .dialog-form { display: flex; flex-direction: column; max-height: calc(100vh - 32px); padding: 0; }
  #listDialog, #themeDialog, #confirmDialog, #passphraseDialog, #shortcutsDialog {
    width: min(500px, calc(100vw - 32px));
  }
  #taskActionDialog { width: min(520px, calc(100vw - 32px)); }
  #multiPasteDialog, #copyTextDialog { width: min(560px, calc(100vw - 32px)); }
  #archiveDialog, #trashDialog, #snapshotDialog { width: min(680px, calc(100vw - 32px)); }
  #shareDialog { width: min(760px, calc(100vw - 32px)); }
  .trash-dialog, .archive-dialog, .share-dialog, .snapshot-dialog,
  .small-dialog.dialog-form, .dialog-form.small-dialog {
    width: 100%;
    padding: var(--space-6);
    overflow-y: auto;
  }
  .dialog-scroll { overflow-y: auto; padding: var(--space-6); }
  .small-dialog { width: 100%; }
  .dialog-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
  }
  .dialog-header > .icon-button {
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    margin: -4px -4px 0 0;
  }
  .dialog-title { font: 700 24px/30px var(--font-display); letter-spacing: -.022em; }
  #taskDialog .dialog-title { font-size: var(--type-title-1-size); line-height: var(--type-title-1-line); }
  .dialog-kicker { margin-bottom: var(--space-1); color: var(--text-tertiary); font: 700 var(--type-micro-size)/var(--type-micro-line) var(--font-sans); letter-spacing: .12em; text-transform: uppercase; }
  .dialog-copy { margin: -4px 0 var(--space-5); color: var(--text-secondary); line-height: 1.45; }
  .confirm-copy { margin: -4px 0 0; color: var(--text-secondary); line-height: 1.45; }

  .dialog-section { display: grid; gap: var(--space-4); }
  .dialog-section + .dialog-section, .advanced-details + .dialog-section { margin-top: var(--space-6); }
  .dialog-section-title { color: var(--text-secondary); font: 600 var(--type-callout-size)/var(--type-callout-line) var(--font-sans); }

  .field { display: grid; gap: var(--space-2); min-width: 0; }
  .field label, .field-label-row { color: var(--text-secondary); font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  .field-label-row { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); }
  .field-label-row span { color: var(--text-tertiary); font-size: var(--type-caption-size); font-variant-numeric: tabular-nums; }
  .field input:not(.color-choice), .field textarea, .field select, .subtask-add input, .subtask-row input[type="text"] {
    width: 100%;
    min-height: var(--control-touch);
    padding: 10px var(--space-3);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    background: var(--surface-control);
    color: var(--text-primary);
    outline: 0;
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast), background var(--duration-fast);
  }
  .field input:not(.color-choice):hover, .field textarea:hover, .field select:hover, .subtask-add input:hover, .subtask-row input[type="text"]:hover { border-color: var(--border-strong); }
  .field input:not(.color-choice):focus, .field textarea:focus, .field select:focus, .subtask-add input:focus, .subtask-row input[type="text"]:focus { border-color: var(--border-strong); background: var(--surface-raised); box-shadow: none; }
  .field input:not(.color-choice):focus-visible, .field textarea:focus-visible, .field select:focus-visible, .subtask-add input:focus-visible, .subtask-row input[type="text"]:focus-visible { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .field textarea { min-height: 108px; resize: vertical; }
  .field-grid { display: grid; gap: var(--space-3); }
  .field-grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .field-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
  body[data-mode="easy"] .planning-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }

  .advanced-details { margin-top: var(--space-6); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: color-mix(in srgb, var(--surface-control) 48%, transparent); }
  .advanced-details > summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); min-height: 48px; padding: 0 var(--space-4); color: var(--text-primary); font-weight: 600; cursor: pointer; }
  .advanced-details > summary::-webkit-details-marker { display: none; }
  .advanced-summary-copy { display: flex; align-items: baseline; gap: var(--space-2); min-width: 0; }
  .advanced-summary-copy small { color: var(--text-tertiary); font-weight: 500; }
  .advanced-chevron { width: 18px; height: 18px; color: var(--text-tertiary); transition: transform var(--duration-standard); }
  .advanced-details[open] .advanced-chevron { transform: rotate(180deg); }
  .advanced-details-content { display: grid; gap: var(--space-4); padding: 0 var(--space-4) var(--space-4); border-top: 1px solid var(--border-subtle); }
  .advanced-details-content > .field-grid { margin-top: var(--space-4); }

  .recurrence-builder { display: grid; gap: var(--space-4); padding: var(--space-5); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-raised); }
  .recurrence-builder-header strong { display: block; font-size: var(--type-headline-size); line-height: var(--type-headline-line); }
  .recurrence-builder-header small { display: block; margin-top: 2px; color: var(--text-secondary); }
  .recurrence-row, .recurrence-options { display: grid; gap: var(--space-3); }
  .recurrence-inline-field { display: flex; align-items: center; gap: var(--space-2); color: var(--text-secondary); }
  .recurrence-inline-field input, .recurrence-inline-field select, .monthly-pattern-row input, .monthly-pattern-row select {
    min-height: var(--control-default);
    padding: 0 var(--space-3);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    background: var(--surface-control);
    color: var(--text-primary);
  }
  .recurrence-inline-field input { width: 84px; }
  .recurrence-inline-field.compact select { min-width: 150px; }
  .weekday-picker { display: grid; grid-template-columns: repeat(7, minmax(0,1fr)); gap: var(--space-2); }
  .weekday-picker button { min-height: var(--control-touch); border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface-control); color: var(--text-secondary); font-weight: 600; cursor: pointer; transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast), box-shadow var(--duration-fast); }
  .weekday-picker button:hover { border-color: var(--border-strong); color: var(--text-primary); }
  .weekday-picker button.active { border-color: color-mix(in srgb, var(--accent-default) 48%, var(--border-default)); background: var(--accent-soft); color: var(--accent-hover); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-default) 16%, transparent); }
  .monthly-pattern-row { display: flex; align-items: center; gap: var(--space-2); color: var(--text-secondary); }

  .subtasks-field { margin-top: 0; }
  .subtask-editor { display: grid; gap: var(--space-2); }
  .subtask-row { display: grid; grid-template-columns: 22px minmax(0,1fr) 36px; align-items: center; gap: var(--space-2); }
  .subtask-row input[type="checkbox"] { width: 20px; height: 20px; margin: 0; accent-color: var(--accent-default); }
  .subtask-row input[type="text"] { min-height: var(--control-default); padding-block: 8px; }
  .subtask-delete { width: 36px; height: 36px; border: 0; border-radius: var(--radius-xs); background: transparent; color: var(--text-tertiary); cursor: pointer; font-size: 20px; }
  .subtask-delete:hover { background: var(--feedback-danger-bg); color: var(--feedback-danger-fg); }
  .subtask-add { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--space-2); }
  .subtask-add input { min-height: var(--control-touch); }

  .snooze-box { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; padding: var(--space-4); border-radius: var(--radius-md); background: var(--surface-control); color: var(--text-secondary); }
  .chip-button { min-height: 32px; padding: 0 var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-full); background: var(--surface-raised); color: var(--text-primary); font-size: var(--type-caption-size); font-weight: 600; }
  .chip-button:hover { border-color: var(--border-default); background: var(--surface-hover); }
  .snooze-status { margin-left: auto; color: var(--accent-hover); font-size: var(--type-caption-size); font-weight: 600; }

  .dialog-footer {
    position: static;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
    padding: var(--space-4) var(--space-6) calc(var(--space-4) + env(safe-area-inset-bottom));
    border-top: 1px solid var(--border-subtle);
    background: color-mix(in srgb, var(--surface-overlay) 94%, transparent);
  }
  .footer-spacer { flex: 1; }
  .small-dialog.dialog-form .dialog-footer,
  .dialog-form.small-dialog .dialog-footer,
  .trash-dialog .dialog-footer,
  .archive-dialog .dialog-footer,
  .share-dialog .dialog-footer,
  .snapshot-dialog .dialog-footer {
    margin: var(--space-6) calc(var(--space-6) * -1) calc(var(--space-6) * -1);
  }
  #taskDialog .dialog-footer {
    position: sticky;
    bottom: 0;
    margin-top: 0;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  #multiPasteDialog .field-grid,
  #shareDialog .field-grid + .field-grid { margin-top: var(--space-4); }
  #multiPasteInput { min-height: 220px; }
  #copyTextPreview { min-height: 220px; }
  #taskActionDialog .quick-date-row { margin-top: var(--space-3); padding-bottom: var(--space-1); }
  #copyTextDialog .check-row + .check-row { margin-top: var(--space-1); }
  #copyTextDialog .check-row + .field { margin-top: var(--space-4); }
  #shareDialog .share-output { margin-top: var(--space-4); }
  #archiveDialog .archive-list { min-height: 120px; }
  #confirmDialog .dialog-footer { margin-top: var(--space-5); }

  body[data-mode="easy"] #taskDialog .dialog-kicker { display: none; }
  body[data-mode="easy"] #taskDialog .dialog-header { margin-bottom: var(--space-5); }
  body[data-mode="easy"] #taskDialog .dialog-scroll { padding-bottom: var(--space-7); }
  body[data-mode="easy"] #taskDialog .planning-section { margin-top: var(--space-5); }

  /* Colour, theme, trash */
  .color-grid { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: center; }
  .color-choice {
    appearance: none;
    -webkit-appearance: none;
    width: 34px;
    min-width: 34px;
    height: 34px;
    min-height: 34px;
    flex: 0 0 34px;
    padding: 0;
    margin: 0;
    border: 2px solid color-mix(in srgb, var(--choice-color) 22%, var(--border-default));
    border-radius: 50%;
    background: var(--choice-color);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.55), 0 0 0 1px color-mix(in srgb, var(--border-default) 82%, transparent);
    cursor: pointer;
    transition: transform var(--duration-fast), box-shadow var(--duration-fast), border-color var(--duration-fast);
  }
  .color-choice:hover { transform: scale(1.05); box-shadow: inset 0 0 0 1px rgba(255,255,255,.6), 0 4px 10px color-mix(in srgb, var(--choice-color) 20%, transparent); }
  .color-choice:focus-visible { outline: 0; box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-default) 26%, transparent), inset 0 0 0 1px rgba(255,255,255,.6); }
  .color-choice:checked { border-color: var(--surface-overlay); box-shadow: 0 0 0 3px var(--accent-default), inset 0 0 0 1px rgba(255,255,255,.65); }
  .support-footer-wrap { position: relative; margin: var(--space-1) var(--space-3) 0; }
  .support-footer-button {
    position: relative;
    width: 100%; min-height: 36px; display: grid;
    grid-template-columns: 17px minmax(0,1fr) 15px;
    align-items: center; gap: var(--space-2);
    padding: 0; border: 0; border-radius: var(--radius-sm); background: transparent;
    color: var(--accent-hover); font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans);
    cursor: pointer; text-align: left; transition: background var(--duration-fast), color var(--duration-fast);
  }
  .support-footer-button:hover { background: var(--accent-soft); color: var(--accent-pressed); }
  .support-footer-button > svg:first-child {
    position: static;
    width: 17px; height: 17px;
    align-self: center; justify-self: start;
  }
  .support-footer-button .support-chevron { width: 15px; height: 15px; margin: 0; justify-self: end; }
  .support-popover {
    position: fixed; z-index: 90; width: min(312px, calc(100vw - 24px)); max-height: calc(100vh - 24px);
    overflow: auto; padding: var(--space-4); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
    background: var(--surface-overlay); box-shadow: var(--shadow-overlay);
    backdrop-filter: blur(24px) saturate(145%); -webkit-backdrop-filter: blur(24px) saturate(145%);
    opacity: 0; visibility: hidden; transform: translateY(6px) scale(.985); transform-origin: bottom left;
    transition: opacity var(--duration-standard), transform var(--duration-standard), visibility var(--duration-standard);
  }
  .support-popover.show { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
  .support-popover-header { display: grid; grid-template-columns: 34px minmax(0,1fr) 28px; gap: var(--space-2); align-items: start; }
  .support-cup { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent-hover); }
  .support-cup svg { width: 21px; height: 21px; }
  .support-popover-title { color: var(--text-primary); font: 700 var(--type-headline-size)/var(--type-headline-line) var(--font-sans); letter-spacing: -.01em; }
  .support-popover-copy { margin-top: 2px; color: var(--text-secondary); font: 400 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); }
  .support-popover-close { width: 28px; height: 28px; display: grid; place-items: center; border: 0; border-radius: 50%; background: transparent; color: var(--text-tertiary); cursor: pointer; }
  .support-popover-close:hover { background: var(--surface-hover); color: var(--text-primary); }
  .support-popover-close svg { width: 16px; height: 16px; }
  .support-amount-label { display: block; margin: var(--space-4) 0 var(--space-2); color: var(--text-tertiary); font: 600 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); text-align: center; }
  .support-chip-row { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 6px; }
  .support-chip {
    min-width: 0; min-height: 34px; padding: 0 8px; border: 1px solid var(--border-subtle); border-radius: 10px;
    background: var(--surface-control); color: var(--text-primary); font: 600 var(--type-caption-size)/1 var(--font-sans);
    cursor: pointer; transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast), transform var(--duration-fast);
  }
  .support-chip:hover { transform: translateY(-1px); border-color: var(--border-default); }
  .support-chip.active { background: var(--accent-default); border-color: var(--accent-default); color: var(--text-inverse); }
  .support-custom-wrap { margin-top: var(--space-2); }
  .support-custom-input {
    width: 100%; min-height: 38px; padding: 8px 11px; border: 1px solid var(--border-default); border-radius: 10px;
    background: var(--surface-control); color: var(--text-primary); outline: 0;
  }
  .support-custom-input:focus-visible { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .support-qr-frame {
    display: grid; justify-items: center; gap: var(--space-2); margin-top: var(--space-3); padding: var(--space-3);
    border: 1px solid color-mix(in srgb, var(--accent-default) 20%, var(--border-subtle)); border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--surface-raised) 92%, white 8%);
  }
  .support-qr-svg { width: 190px; max-width: 100%; aspect-ratio: 1; display: grid; place-items: center; padding: 8px; border-radius: 10px; background: #fff; }
  .support-qr-svg svg { width: 100%; height: 100%; display: block; }
  .support-qr-caption { color: var(--accent-hover); font: 600 var(--type-callout-size)/var(--type-callout-line) var(--font-sans); }
  .support-note { display: flex; align-items: center; justify-content: center; gap: var(--space-2); margin-top: var(--space-3); color: var(--text-tertiary); font: 500 var(--type-caption-size)/var(--type-caption-line) var(--font-sans); text-align: center; }
  .support-note svg { width: 16px; height: 16px; flex: 0 0 auto; }
  body.sidebar-collapsed .support-footer-wrap { margin: 0; width: 44px; }
  body.sidebar-collapsed .support-footer-button { width: 44px; height: 44px; padding: 0; grid-template-columns: 1fr; place-items: center; gap: 0; }
  body.sidebar-collapsed .support-footer-button > svg:first-child { position: static; justify-self: center; }
  body.sidebar-collapsed .support-footer-button .sidebar-action-label,
  body.sidebar-collapsed .support-footer-button .support-chevron { display: none; }
  @media (max-width: 720px) {
    .support-popover { width: min(340px, calc(100vw - 24px)); transform-origin: center; }
  }
  .theme-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: var(--space-3); }
  .theme-choice { padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-control); color: var(--text-primary); text-align: left; cursor: pointer; }
  .theme-choice.active { border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
  .theme-choice strong, .theme-choice small { display: block; }
  .theme-choice small { margin-top: 2px; color: var(--text-secondary); }
  .theme-preview { display: block; height: 70px; margin-bottom: var(--space-2); border: 1px solid rgba(0,0,0,.08); border-radius: var(--radius-sm); }
  .light-preview { background: linear-gradient(145deg,#fff,#ececf2); }
  .dark-preview { background: linear-gradient(145deg,#2b2a38,#11111a); }
  .glass-preview { background: radial-gradient(circle at 20% 20%,#ffc9e0,transparent 45%),radial-gradient(circle at 80% 15%,#8dbbff,transparent 48%),linear-gradient(145deg,#e9edff,#d8f6ef); box-shadow: inset 0 0 0 12px rgba(255,255,255,.28); }

  .trash-list { display: grid; gap: var(--space-2); min-height: 120px; max-height: 380px; overflow-y: auto; }
  .trash-item { display: grid; grid-template-columns: minmax(0,1fr) auto auto; gap: var(--space-2); align-items: center; padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); background: var(--surface-control); }
  .trash-item strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .trash-item small { color: var(--text-secondary); }
  .trash-item button { border: 0; background: transparent; color: var(--accent-hover); font-weight: 600; cursor: pointer; }
  .trash-item button.permanent { color: var(--feedback-danger-fg); }

  /* Popovers and toasts */
  .popover-menu { position: fixed; z-index: 80; display: none; min-width: 220px; padding: var(--space-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-overlay); box-shadow: var(--shadow-overlay); }
  .popover-menu.show { display: grid; }
  .popover-menu button, .popover-menu .popover-link { padding: 10px var(--space-3); border: 0; border-radius: var(--radius-xs); background: transparent; color: var(--text-primary); text-align: left; cursor: pointer; }
  .popover-menu .popover-link { display: block; color: inherit; text-decoration: none; }
  .popover-menu button:hover, .popover-menu .popover-link:hover { background: var(--surface-hover); }
  .danger-text { color: var(--feedback-danger-fg) !important; }

  .toast-region { position: fixed; right: var(--space-5); bottom: var(--space-5); z-index: 120; display: grid; gap: var(--space-2); }
  .toast { min-width: 280px; max-width: 400px; display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-overlay); box-shadow: var(--shadow-overlay); }
  .toast span { flex: 1; }
  .toast button { padding: 6px 10px; border: 0; border-radius: var(--radius-xs); background: var(--accent-soft); color: var(--accent-hover); font-weight: 600; cursor: pointer; }
}

@layer components {
  .select-mode-button { height: var(--toolbar-control-height); min-height: var(--toolbar-control-height); padding-inline: var(--space-3); color: var(--text-tertiary); font-size: var(--type-callout-size); font-weight: 400; }
  .select-mode-button .button-label { font-weight: 400; }
  .select-mode-button svg { width: var(--icon-sm); height: var(--icon-sm); }
  .select-mode-button.active { background: var(--accent-soft); color: var(--accent-hover); border-color: color-mix(in srgb,var(--accent-default) 34%,var(--border-subtle)); }
  .bulk-action-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); }
  .bulk-action-bar.hidden { display: none; }
  .bulk-action-bar strong { font-size: var(--type-callout-size); }
  .bulk-actions { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
  .danger-button.compact { min-height: var(--control-compact); padding: 0 var(--space-3); font-size: var(--type-callout-size); }

  .task-item.selection-mode { cursor: pointer; }
  .task-item.selection-mode .task-content { cursor: pointer; }
  .task-item.selected { border-color: var(--accent-default); box-shadow: var(--shadow-focus); }
  .task-item.keyboard-focused { outline: 2px solid var(--border-focus); outline-offset: 3px; }
  .task-select { appearance: none; width: 21px; height: 21px; display: grid; place-items: center; border: 2px solid var(--border-strong); border-radius: 7px; background: var(--surface-raised); cursor: pointer; }
  .task-select:checked { background: var(--accent-default); border-color: var(--accent-default); }
  .task-select:checked::after { content: ""; width: 9px; height: 5px; border: solid white; border-width: 0 0 2px 2px; transform: rotate(-45deg) translate(1px,-1px); }
  .task-menu-button svg { width: 18px; height: 18px; }
  .pin-indicator { display: inline-flex; color: var(--accent-hover); }
  .pin-indicator svg { width: 13px; height: 13px; }
  .task-item.skipped { opacity: .68; }
  .task-item.skipped .task-title { text-decoration: line-through; }

  .field-grid.two { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .recurrence-series-section { padding: var(--space-4); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--surface-control); }
  .series-quick-actions { display: flex; align-items: flex-end; gap: var(--space-2); padding-bottom: 1px; }
  .dialog-count { color: var(--text-secondary); font-size: var(--type-callout-size); }
  .quick-date-row { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-2); }
  .check-row { display: flex; align-items: center; gap: var(--space-2); min-height: 40px; color: var(--text-secondary); }
  .check-row input { width: 18px; height: 18px; accent-color: var(--accent-default); }

  .archive-settings { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); padding: var(--space-3); border-radius: var(--radius-sm); background: var(--surface-control); }
  .archive-settings label { color: var(--text-secondary); }
  .archive-settings select { min-height: var(--control-default); padding: 0 34px 0 var(--space-3); border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface-raised); color: var(--text-primary); }
  .archive-list, .snapshot-list { display: grid; gap: var(--space-2); min-height: 96px; max-height: 420px; overflow-y: auto; }
  .archive-item, .snapshot-item { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--space-3); align-items: center; padding: var(--space-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); background: var(--surface-control); }
  .archive-item small, .snapshot-item small { display: block; margin-top: 2px; color: var(--text-secondary); }
  .archive-item-actions { display: flex; gap: var(--space-2); }
  .archive-item-actions button { border: 0; background: transparent; color: var(--accent-hover); font-weight: 600; cursor: pointer; }
  .empty-state-inline { min-height: 96px; display: grid; place-items: center; padding: var(--space-5); border: 1px dashed var(--border-subtle); border-radius: var(--radius-md); color: var(--text-tertiary); text-align: center; }

  .share-dialog { width: min(760px,calc(100vw - 32px)); }
  .share-output { display: grid; gap: var(--space-2); margin-top: var(--space-3); }
  .share-output > label { color: var(--text-secondary); font-size: var(--type-caption-size); font-weight: 600; }
  .copy-field { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--space-2); }
  .copy-field input { min-height: var(--control-touch); padding: 0 var(--space-3); border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface-control); color: var(--text-primary); }
  .share-output p { margin: 0; color: var(--text-secondary); font-size: var(--type-caption-size); }
  .snapshot-item { grid-template-columns: auto minmax(0,1fr); }
  .snapshot-check { width: 20px; height: 20px; display: grid; place-items: center; border: 1px solid var(--border-default); border-radius: 6px; color: var(--accent-hover); }
  .field-error { color: var(--feedback-danger-fg); font-size: var(--type-caption-size); }

  .shortcut-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--space-3); }
  .shortcut-grid span { display: flex; align-items: center; gap: var(--space-2); color: var(--text-secondary); }
  .shortcut-grid kbd + kbd { margin-left: -4px; }

  .action-sheet-dialog { width: min(420px,calc(100vw - 24px)); margin: auto auto calc(var(--space-3) + env(safe-area-inset-bottom)); border-radius: var(--radius-xl); }
  .action-sheet { display: grid; gap: 1px; padding: var(--space-2); background: var(--surface-overlay); }
  .action-sheet strong { padding: var(--space-3); text-align: center; }
  .action-sheet button { min-height: 50px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--text-primary); text-align: left; padding: 0 var(--space-4); font-weight: 500; }
  .action-sheet button:hover { background: var(--surface-hover); }
}

@layer utilities {
  @media print {
    .ambient, .sidebar, .mobile-sidebar-button, .mobile-overlay, .top-actions, .composer, .mobile-quick-add,
    .toolbar, .summary-strip, .backup-banner, .rollover-banner, .bulk-action-bar, .calendar-toolbar,
    .task-actions, .drag-handle, .swipe-underlay, .task-check-wrap .task-select, .toast-region, .empty-state,
    .popover-menu, .support-popover, dialog { display: none !important; }
    :root { color-scheme: light; }
    html, body, .app-shell, .main { display: block !important; margin: 0 !important; padding: 0 !important; background: #fff !important; }
    .topbar { position: static; padding: 0 0 6mm; }
    .list-title-input { border: 0; padding: 0; background: transparent; color: #000; font-size: 20pt; font-weight: 700; }
    .header-meta .save-state { display: none; }
    .subtitle { color: #555; }
    .content-region, .task-list { display: block !important; }
    .task-list > .task-shell { content-visibility: visible; break-inside: avoid; }
    .task-item { position: static; margin: 0 0 2mm; border: 0 !important; border-bottom: 1pt solid #ddd !important;
      border-radius: 0 !important; box-shadow: none !important; background: #fff !important; opacity: 1 !important; }
    .task-item.completed .task-title { color: #888; }
    .task-check { border: 1.4pt solid #555 !important; background: #fff !important; box-shadow: none !important; }
    .task-check:checked { background: #555 !important; }
    .task-notes { display: block !important; -webkit-line-clamp: unset !important; color: #444; }
    .task-title { -webkit-line-clamp: unset !important; }
    .meta-pill { border: .8pt solid #ccc; background: #fff !important; color: #444 !important; }
    .note-link { color: #000; text-decoration: underline; }
    .task-accent { display: none; }
    .board, .calendar { display: block !important; }
    .board-column { break-inside: avoid; margin-bottom: 6mm; }
  }
}

@layer responsive {
  @media (max-width: 1180px) {
    .main { padding-inline: var(--space-6); }
    .toolbar { align-items: flex-start; flex-direction: column; }
    .toolbar-right { width: 100%; }
    .search-box { flex: 1; }
    .board { grid-template-columns: repeat(4, 260px); }
    .field-grid.three { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .field-grid.three .field:last-child { grid-column: 1 / -1; }
  }

  @media (max-width: 820px) {
    :root { --sidebar-expanded: 286px; }
    .app-shell, body.sidebar-collapsed .app-shell { display: block; }
    .sidebar {
      position: fixed;
      left: 0;
      top: 0;
      width: calc(var(--sidebar-expanded) - 16px);
      height: calc(100vh - 16px);
      height: calc(100dvh - 16px);
      margin: 8px;
      border: 1px solid var(--border-default);
      border-radius: var(--radius-xl);
      transform: translateX(-110%);
      transition: transform var(--duration-slow) var(--ease-emphasized);
      box-shadow: var(--shadow-overlay);
      grid-template-rows: auto auto auto auto;
      overflow-y: auto;
      overflow-x: hidden;
      overscroll-behavior: contain;
    }
    .sidebar-scroll { min-height: auto; overflow: visible; }
    .sidebar-bottom { padding-bottom: env(safe-area-inset-bottom); }
    .privacy-note { margin-top: var(--space-1); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-collapse-button {
      display: grid;
      right: -31px;
      top: 10px;
      width: 28px;
      height: 28px;
      border-radius: 10px;
      border-left: 1px solid var(--border-subtle);
      background: var(--surface-raised);
      box-shadow: var(--shadow-raised);
    }
    body.sidebar-collapsed .brand,
    body.sidebar-collapsed .sidebar-scroll,
    body.sidebar-collapsed .sidebar-section,
    body.sidebar-collapsed .list-nav,
    body.sidebar-collapsed .smart-nav,
    body.sidebar-collapsed .sidebar-bottom { width: 100%; margin-inline: 0; }
    body.sidebar-collapsed .brand { grid-template-columns: 44px minmax(0,1fr); justify-content: initial; }
    body.sidebar-collapsed .brand-copy,
    body.sidebar-collapsed .mode-control,
    body.sidebar-collapsed .sidebar-heading span,
    body.sidebar-collapsed .list-nav-title,
    body.sidebar-collapsed .sidebar-action-label,
    body.sidebar-collapsed .privacy-note,
    body.sidebar-collapsed .creator-footer,
    body.sidebar-collapsed .list-count,
    body.sidebar-collapsed .side-badge { display: initial; }
    body.sidebar-collapsed .sidebar {
      padding-inline: var(--space-4);
      grid-template-rows: auto auto minmax(0, 1fr) auto;
    }
    body.sidebar-collapsed .sidebar-heading { justify-content: space-between; padding: 0 var(--space-2); }
    body.sidebar-collapsed .smart-nav-item > span:not(.nav-icon) { display: initial; }
    body.sidebar-collapsed .list-nav,
    body.sidebar-collapsed .smart-nav { justify-items: stretch; }
    body.sidebar-collapsed .list-nav-item,
    body.sidebar-collapsed .smart-nav-item,
    body.sidebar-collapsed .sidebar-action {
      width: 100%;
      min-height: var(--control-touch);
      grid-template-columns: 22px minmax(0,1fr) auto;
      justify-items: initial;
      padding: 0 var(--space-3);
      margin-inline: 0;
    }
    body.sidebar-collapsed .sidebar-bottom { grid-auto-rows: max-content; gap: 2px; }
    body.sidebar-collapsed .sidebar-collapse-button svg { transform: none; }
    body.sidebar-collapsed .support-footer-wrap { position: relative; width: auto; margin: var(--space-1) var(--space-3) 0; }
    body.sidebar-collapsed .support-footer-button { width: 100%; height: 36px; grid-template-columns: 17px minmax(0,1fr) 15px; place-items: initial; align-items: center; gap: var(--space-2); }
    body.sidebar-collapsed .support-footer-button > svg:first-child { position: static; justify-self: start; }
    body.sidebar-collapsed .support-footer-button .sidebar-action-label,
    body.sidebar-collapsed .support-footer-button .support-chevron { display: initial; }
    .list-nav-item, .smart-nav-item, .sidebar-action { min-height: var(--control-touch); }

    .mobile-overlay { position: fixed; inset: 0; z-index: 15; background: var(--surface-scrim); }
    .mobile-overlay.show { display: block !important; }
    .mobile-sidebar-button {
      position: fixed;
      left: 0;
      top: var(--space-5);
      z-index: 14;
      width: 28px;
      height: 40px;
      display: grid !important;
      place-items: center;
      padding: 0;
      border: 1px solid var(--border-subtle);
      border-left: 0;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      background: var(--surface-sidebar);
      color: var(--text-tertiary);
      box-shadow: var(--shadow-raised);
      cursor: pointer;
    }
    .mobile-sidebar-button:hover { color: var(--text-primary); background: var(--surface-hover); }
    .mobile-sidebar-button svg { width: var(--icon-sm); height: var(--icon-sm); }

    .main { max-width: none; padding: var(--space-5) var(--space-4) calc(104px + env(safe-area-inset-bottom)); }
    .topbar { gap: var(--space-3); padding-left: 28px; }
    .header-meta { flex-wrap: wrap; row-gap: var(--space-1); }
    .top-actions .button-label { display: none; }
    .list-title-input { font-size: 29px; line-height: 35px; }

    .summary-strip { gap: var(--space-2); }
    .summary-card { padding: var(--space-3); gap: var(--space-2); }
    .summary-icon { width: 36px; height: 36px; }

    .composer { display: none; }
    .mobile-quick-add {
      position: fixed;
      z-index: 40;
      left: var(--space-3);
      right: var(--space-3);
      bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
      min-height: 62px;
      display: grid !important;
      grid-template-columns: minmax(0,1fr) auto;
      align-items: center;
      gap: var(--space-2);
      padding: 8px 8px 8px var(--space-4);
      border-radius: var(--radius-lg);
      backdrop-filter: blur(var(--glass-blur-nav)) saturate(150%);
      -webkit-backdrop-filter: blur(var(--glass-blur-nav)) saturate(150%);
    }
    .mobile-quick-add input { min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text-primary); }
    body:has(.sidebar.open) .mobile-quick-add { opacity: 0; pointer-events: none; }

    .task-list.cards { grid-template-columns: 1fr; }
    .task-list.cards .task-shell, .task-card-view, .task-card-body { min-height: 0; height: auto; }
    .task-actions { opacity: .78; }
    /* Row view: one aligned line — checkbox, title, menu. Edit = tap the row; snooze = swipe left. */
    .task-row-view .task-row { grid-template-columns: auto minmax(0,1fr) auto; align-items: start; padding: var(--space-3) var(--space-2) var(--space-3) var(--space-3); }
    .task-row-view .task-check-wrap { grid-column: auto; grid-row: auto; padding-top: 0; }
    .task-row-view .task-actions { grid-column: auto; grid-row: auto; margin-top: -6px; }
    .task-row-view .task-content { grid-column: auto; grid-row: auto; padding-left: 0; }
    /* 44px hit areas without changing visual size (whole wrap toggles via JS) */
    .task-check-wrap { position: relative; min-width: 44px; min-height: 44px; justify-content: center; margin: -11px 0 -11px -10px; cursor: pointer; }
    .task-card-header .task-check-wrap { width: 44px; justify-content: center; }
    .task-actions .icon-button { position: relative; }
    .task-actions .icon-button::after { content: ''; position: absolute; inset: -5px; }
    /* Chai popover: pay-link first on phones (you cannot scan a QR shown on the same phone) */
    .support-popover { max-height: calc(100dvh - 24px); overflow-y: auto; overscroll-behavior: contain; }
    .upi-pay-button {
      display: flex; align-items: center; justify-content: center; gap: 8px;
      width: 100%; min-height: 48px; margin-top: 4px;
      border: 0; border-radius: var(--radius-sm); cursor: pointer;
      background: var(--accent-default); color: #fff; text-decoration: none;
      font: 600 15px/20px var(--font-sans);
      box-shadow: 0 6px 16px color-mix(in srgb, var(--accent-default) 32%, transparent);
    }
    .upi-pay-button:active { transform: scale(.985); }
    .upi-pay-button svg { width: 18px; height: 18px; flex: none; }
    .upi-copy-row { display: flex; justify-content: center; margin-top: 10px; }
    .upi-copy-chip {
      display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; min-height: 32px;
      border: 1px solid var(--border-subtle); border-radius: var(--radius-full);
      background: var(--surface-control); color: var(--text-primary);
      font: 600 13px/18px var(--font-sans); cursor: pointer;
    }
    .upi-copy-chip svg { width: 13px; height: 13px; color: var(--text-tertiary); flex: none; }
    .upi-qr-toggle {
      display: block; margin: 12px auto 0; padding: 4px 8px;
      background: none; border: 0; cursor: pointer;
      color: var(--accent-default); font: 600 13px/18px var(--font-sans);
      text-decoration: underline; text-underline-offset: 3px;
    }
    .support-popover .support-qr-frame { display: none; }
    .support-popover.show-qr .support-qr-frame { display: block; margin-top: 12px; }

    /* Reclaim vertical space: the summary strip duplicates the filter-pill counts */
    .summary-strip { display: none; }
    /* Compact one-line backup banner */
    .backup-banner { grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: var(--space-2); padding: 8px 10px; margin-bottom: var(--space-3); }
    .backup-banner .backup-copy strong { font-size: 13px; line-height: 18px; }
    .backup-banner #backupMessage { display: none; }
    .backup-banner .backup-actions { grid-column: auto; border-top: 0; padding-top: 0; }
    /* HTML5 drag-and-drop does not exist on touch: the grip is dead weight here */
    .drag-handle { display: none; }
    /* Tap opens the editor and swipe snoozes, so keep only the overflow menu */
    .task-item .task-actions .edit-task, .task-item .task-actions .snooze-task { display: none; }
    /* Card view: tighter rhythm, and the menu button joins the header line instead of its own footer strip */
    .task-card-body { position: relative; padding: var(--space-4) var(--space-4) var(--space-3); }
    .task-card-copy { margin-top: var(--space-2); }
    .task-card-view .task-meta { margin-top: var(--space-2); }
    .task-card-view .task-card-header { padding-right: 40px; }
    .task-card-footer { position: absolute; top: 10px; right: 10px; margin: 0; padding: 0; border-top: 0; }

    .calendar-day { min-height: 94px; padding: 5px; }
    .calendar-task { padding: 3px 4px; font-size: 10px; }
    .field-grid.three, .field-grid.two { grid-template-columns: 1fr; }
    .field-grid.three .field:last-child { grid-column: auto; }
    .weekday-picker { grid-template-columns: repeat(4,minmax(0,1fr)); }

    dialog { width: calc(100vw - 16px); max-height: calc(100vh - 16px); border-radius: var(--radius-lg); }
    .dialog-form { max-height: calc(100vh - 16px); }
    .dialog-scroll { padding: var(--space-5) var(--space-4); }
    .dialog-footer { padding: var(--space-3) var(--space-4) calc(var(--space-3) + env(safe-area-inset-bottom)); }
    .theme-grid { grid-template-columns: 1fr; }
    .theme-choice { display: grid; grid-template-columns: 92px 1fr; column-gap: var(--space-3); align-items: center; }
    .theme-preview { grid-row: 1 / 3; height: 62px; margin: 0; }
  }

  @media (max-width: 560px) {
    .main { padding-inline: var(--space-3); }
    .topbar { align-items: flex-start; }
    .summary-card { display: grid; justify-items: center; text-align: center; }
    .summary-label { font-size: 11px; }
    .summary-value { font-size: 16px; line-height: 20px; }

    .toolbar-right { flex-wrap: wrap; }
    .search-box { min-width: 100%; order: 1; height: var(--control-touch); }
    .select-control { flex: 1; min-width: 0; height: var(--control-touch); }
    .view-switch { height: var(--control-touch); margin-left: auto; }
    .seg-button { height: 36px; }
    .filter-button { min-height: var(--control-touch); padding-inline: 10px; }

    .backup-action:first-child { border-left: 0; }
    .calendar-weekdays div { padding: 8px 2px; font-size: 10px; }
    .calendar-day { min-height: 78px; }
    .calendar-task:nth-child(n+3) { display: none; }
    .calendar-toolbar strong { min-width: 126px; font-size: 15px; }

    .advanced-summary-copy { display: grid; gap: 0; }
    .advanced-summary-copy small { display: block; }
    .recurrence-inline-field { flex-wrap: wrap; }
    .weekday-picker { grid-template-columns: repeat(4,minmax(0,1fr)); }
    .monthly-pattern-row { flex-wrap: wrap; }

    .dialog-title { font-size: 24px; line-height: 30px; }
    .dialog-footer { flex-wrap: wrap; }
    .dialog-footer .danger-button { order: 3; width: 100%; }
    .trash-item { grid-template-columns: minmax(0,1fr) auto; }
    .trash-item .permanent { grid-column: 2; }
    .snooze-status { width: 100%; margin-left: 0; }

    .toast-region { left: var(--space-3); right: var(--space-3); bottom: calc(86px + env(safe-area-inset-bottom)); }
    .toast { min-width: 0; width: 100%; }
  }

  @media (min-width: 821px) {
    .upi-pay-button, .upi-copy-row, .upi-qr-toggle { display: none; }
  }

  .note-link { color: var(--accent-default); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; word-break: break-all; border-radius: 3px; }
  .note-link:hover { color: var(--accent-hover); }

  .rollover-banner .rollover-icon { color: var(--feedback-warning-fg); background: var(--feedback-warning-bg); }

  /* Completion celebration: a soft accent bloom and a few sparkles rising from the checkbox.
     Quiet, brief, anchored to the action - closer to a watch-face glint than confetti. */
  .celebration { position: fixed; inset: 0; z-index: 120; pointer-events: none; }
  .celebration > span { position: absolute; left: var(--x); top: var(--y); }
  .celebration-glow {
    width: 132px; height: 132px; margin: -66px;
    border-radius: 50%;
    background: radial-gradient(circle,
      color-mix(in srgb, var(--celebration-accent, var(--accent-default)) 26%, transparent) 0%,
      color-mix(in srgb, var(--celebration-accent, var(--accent-default)) 10%, transparent) 45%,
      transparent 72%);
    opacity: 0;
    animation: cel-glow 950ms var(--ease-emphasized) forwards;
  }
  .celebration-ring {
    width: 40px; height: 40px; margin: -20px;
    border-radius: 50%;
    border: 1.5px solid color-mix(in srgb, var(--celebration-accent, var(--accent-default)) 45%, transparent);
    opacity: 0;
    animation: cel-ring 850ms var(--ease-emphasized) 60ms forwards;
  }
  .celebration-sparkle {
    width: var(--size, 12px); height: var(--size, 12px);
    margin: calc(var(--size, 12px) / -2);
    opacity: 0;
    animation: cel-sparkle 1050ms var(--ease-emphasized) var(--delay, 0ms) forwards;
  }
  .celebration-sparkle svg { display: block; width: 100%; height: 100%; fill: currentColor; }
  .celebration-sparkle.tone-accent { color: var(--accent-default); }
  .celebration-sparkle.tone-list { color: var(--celebration-accent, var(--accent-default)); }
  .celebration-sparkle.tone-soft { color: color-mix(in srgb, var(--celebration-accent, var(--accent-default)) 45%, var(--surface-raised)); }
  @keyframes cel-glow {
    0% { opacity: 0; transform: scale(.35); }
    28% { opacity: 1; }
    100% { opacity: 0; transform: scale(1.55); }
  }
  @keyframes cel-ring {
    0% { opacity: 0; transform: scale(.45); }
    22% { opacity: .85; }
    100% { opacity: 0; transform: scale(2.1); }
  }
  @keyframes cel-sparkle {
    0% { opacity: 0; transform: translate(calc(var(--tx) * .2), calc(var(--ty) * .2)) scale(0) rotate(-14deg); }
    32% { opacity: 1; transform: translate(calc(var(--tx) * .62), calc(var(--ty) * .62 - 5px)) scale(1) rotate(8deg); }
    100% { opacity: 0; transform: translate(var(--tx), calc(var(--ty) - 16px)) scale(.25) rotate(28deg); }
  }

  @media (hover: none) {
    .task-item:active { transform: scale(.985); transition-duration: 60ms; }
    .board-card:active, .list-nav-item:active, .smart-nav-item:active, .sidebar-action:active { transform: scale(.97); }
    .task-item:hover { transform: none; box-shadow: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  }
}

@layer utilities {
  @media print {
    .ambient, .sidebar, .mobile-sidebar-button, .mobile-overlay, .top-actions, .composer, .mobile-quick-add,
    .toolbar, .summary-strip, .backup-banner, .rollover-banner, .bulk-action-bar, .calendar-toolbar,
    .task-actions, .drag-handle, .swipe-underlay, .task-check-wrap .task-select, .toast-region, .empty-state,
    .popover-menu, .support-popover, dialog { display: none !important; }
    :root { color-scheme: light; }
    html, body, .app-shell, .main { display: block !important; margin: 0 !important; padding: 0 !important; background: #fff !important; }
    .topbar { position: static; padding: 0 0 6mm; }
    .list-title-input { border: 0; padding: 0; background: transparent; color: #000; font-size: 20pt; font-weight: 700; }
    .header-meta .save-state { display: none; }
    .subtitle { color: #555; }
    .content-region, .task-list { display: block !important; }
    .task-list > .task-shell { content-visibility: visible; break-inside: avoid; }
    .task-item { position: static; margin: 0 0 2mm; border: 0 !important; border-bottom: 1pt solid #ddd !important;
      border-radius: 0 !important; box-shadow: none !important; background: #fff !important; opacity: 1 !important; }
    .task-item.completed .task-title { color: #888; }
    .task-check { border: 1.4pt solid #555 !important; background: #fff !important; box-shadow: none !important; }
    .task-check:checked { background: #555 !important; }
    .task-notes { display: block !important; -webkit-line-clamp: unset !important; color: #444; }
    .task-title { -webkit-line-clamp: unset !important; }
    .meta-pill { border: .8pt solid #ccc; background: #fff !important; color: #444 !important; }
    .note-link { color: #000; text-decoration: underline; }
    .task-accent { display: none; }
    .board, .calendar { display: block !important; }
    .board-column { break-inside: avoid; margin-bottom: 6mm; }
  }
}

@layer responsive {
  @media (max-width: 820px) {
    .select-mode-button .button-label { display: none; }
    .bulk-action-bar { align-items: flex-start; flex-direction: column; }
    .bulk-actions { width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
    .bulk-actions button { flex: none; }
    .field-grid.two { grid-template-columns: 1fr; }
    .series-quick-actions { align-items: center; }
  }
  @media (max-width: 560px) {
    .select-mode-button { width: var(--control-touch); padding: 0; }
    .archive-settings { align-items: stretch; flex-direction: column; }
    .shortcut-grid { grid-template-columns: 1fr; }
    .copy-field { grid-template-columns: 1fr; }
    .share-dialog .dialog-footer { align-items: stretch; }
    .share-dialog .dialog-footer button { flex: 1; }
  }
}

@layer utilities {
  @media print {
    .ambient, .sidebar, .mobile-sidebar-button, .mobile-overlay, .top-actions, .composer, .mobile-quick-add,
    .toolbar, .summary-strip, .backup-banner, .rollover-banner, .bulk-action-bar, .calendar-toolbar,
    .task-actions, .drag-handle, .swipe-underlay, .task-check-wrap .task-select, .toast-region, .empty-state,
    .popover-menu, .support-popover, dialog { display: none !important; }
    :root { color-scheme: light; }
    html, body, .app-shell, .main { display: block !important; margin: 0 !important; padding: 0 !important; background: #fff !important; }
    .topbar { position: static; padding: 0 0 6mm; }
    .list-title-input { border: 0; padding: 0; background: transparent; color: #000; font-size: 20pt; font-weight: 700; }
    .header-meta .save-state { display: none; }
    .subtitle { color: #555; }
    .content-region, .task-list { display: block !important; }
    .task-list > .task-shell { content-visibility: visible; break-inside: avoid; }
    .task-item { position: static; margin: 0 0 2mm; border: 0 !important; border-bottom: 1pt solid #ddd !important;
      border-radius: 0 !important; box-shadow: none !important; background: #fff !important; opacity: 1 !important; }
    .task-item.completed .task-title { color: #888; }
    .task-check { border: 1.4pt solid #555 !important; background: #fff !important; box-shadow: none !important; }
    .task-check:checked { background: #555 !important; }
    .task-notes { display: block !important; -webkit-line-clamp: unset !important; color: #444; }
    .task-title { -webkit-line-clamp: unset !important; }
    .meta-pill { border: .8pt solid #ccc; background: #fff !important; color: #444 !important; }
    .note-link { color: #000; text-decoration: underline; }
    .task-accent { display: none; }
    .board, .calendar { display: block !important; }
    .board-column { break-inside: avoid; margin-bottom: 6mm; }
  }
}

@layer responsive {
  @media (max-width: 560px) {
    #multiPasteDialog, #taskActionDialog, #copyTextDialog, #passphraseDialog, #shortcutsDialog,
    #archiveDialog, #shareDialog, #snapshotDialog, #trashDialog { width: calc(100vw - 16px); }
    .trash-dialog, .archive-dialog, .share-dialog, .snapshot-dialog,
    .small-dialog.dialog-form, .dialog-form.small-dialog { padding: var(--space-4); }
    .small-dialog.dialog-form .dialog-footer,
    .dialog-form.small-dialog .dialog-footer,
    .trash-dialog .dialog-footer,
    .archive-dialog .dialog-footer,
    .share-dialog .dialog-footer,
    .snapshot-dialog .dialog-footer {
      margin: var(--space-5) calc(var(--space-4) * -1) calc(var(--space-4) * -1);
      padding-inline: var(--space-4);
    }
  }
}