:root {
    --bg: #EFF2EF;
    --surface: #FFFFFF;
    --surface-soft: #E6EBE7;
    --ink: #1A2422;
    --ink-soft: #616B65;
    --line: #D7DEDA;
    --accent: #2E6F68;
    --accent-ink: #FFFFFF;
    --tag-personal: #45599E;
    --tag-caravan: #4F7239;
    --tag-cc: #8A3A4C;
    --tag-bc: #A06A1A;
    --urgent: #B23A26;
    --soon: #A97A1E;
    --none-badge: #8B958F;
    --p25: #BBDBAC;
    --p50: #84BF78;
    --p75: #3F9A55;
    --p100: #1B6A38;
    --shadow: 0 1px 2px rgba(20, 30, 26, 0.06), 0 4px 14px rgba(20, 30, 26, 0.05);
    color-scheme: light;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #111613;
      --surface: #1A2119;
      --surface-soft: #212A26;
      --ink: #E9EEE9;
      --ink-soft: #99A59D;
      --line: #2B3531;
      --accent: #59AA9D;
      --accent-ink: #0C1412;
      --tag-personal: #8FA3EC;
      --tag-caravan: #9AC479;
      --tag-cc: #E093A6;
      --tag-bc: #E5B564;
      --urgent: #E27A61;
      --soon: #E0B15D;
      --none-badge: #79857E;
      --p25: #3F6B49;
      --p50: #509160;
      --p75: #66B576;
      --p100: #86DB96;
      --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 18px rgba(0, 0, 0, 0.28);
      color-scheme: dark;
    }
  }
  :root[data-theme="dark"] {
    --bg: #111613;
    --surface: #1A2119;
    --surface-soft: #212A26;
    --ink: #E9EEE9;
    --ink-soft: #99A59D;
    --line: #2B3531;
    --accent: #59AA9D;
    --accent-ink: #0C1412;
    --tag-personal: #8FA3EC;
    --tag-caravan: #9AC479;
    --tag-cc: #E093A6;
    --tag-bc: #E5B564;
    --urgent: #E27A61;
    --soon: #E0B15D;
    --none-badge: #79857E;
    --p25: #3F6B49;
    --p50: #509160;
    --p75: #66B576;
    --p100: #86DB96;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 18px rgba(0, 0, 0, 0.28);
    color-scheme: dark;
  }

  * { box-sizing: border-box; }
  body {
    background: var(--bg);
    color: var(--ink);
    font-family: "Work Sans", -apple-system, "Segoe UI", sans-serif;
    padding-inline: 18px;
    padding-block: 28px 64px;
    max-width: 720px;
    margin: 0 auto;
  }
  h1, h2 { font-family: "Fraunces", Georgia, serif; text-wrap: balance; margin: 0; }
  .mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }

  header { margin-bottom: 20px; }
  header h1 { font-size: 1.9rem; font-weight: 700; color: var(--ink); }
  .tagline { color: var(--ink-soft); font-size: 0.9rem; margin-top: 4px; }
  .summary {
    display: flex; gap: 18px; margin-top: 14px; flex-wrap: wrap;
  }
  .stat { display: flex; flex-direction: column; }
  .stat .n { font-family: "IBM Plex Mono", monospace; font-size: 1.4rem; font-weight: 500; line-height: 1.1; }
  .stat .l { font-size: 0.72rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 2px; }
  .stat.warn .n { color: var(--urgent); }

  .search-wrap { margin-bottom: 12px; }
  .search-wrap input {
    width: 100%; font-family: "Work Sans", sans-serif; font-size: 1rem; color: var(--ink);
    background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
    padding: 11px 14px;
  }
  .search-wrap input::placeholder { color: var(--ink-soft); }

  .chips {
    display: flex; gap: 8px; overflow-x: auto; padding-block: 4px 2px;
    margin-bottom: 16px; -webkit-overflow-scrolling: touch;
  }
  .chip {
    flex: none; font-family: "Work Sans", sans-serif; font-size: 0.85rem; font-weight: 500;
    padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line);
    background: var(--surface); color: var(--ink-soft); cursor: pointer;
    display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  }
  .chip .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
  .chip[aria-pressed="true"] {
    background: var(--ink); color: var(--bg); border-color: var(--ink);
  }

  .view-toggle { display: flex; gap: 6px; margin-bottom: 18px; }
  .view-toggle button {
    font-family: "Work Sans", sans-serif; font-size: 0.85rem; font-weight: 600;
    padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line);
    background: var(--surface); color: var(--ink-soft); cursor: pointer;
  }
  .view-toggle button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

  .cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 10px; }
  .cal-header h2 { font-size: 1.15rem; font-weight: 600; }
  .cal-header button {
    font-family: "Work Sans", sans-serif; font-size: 1.1rem; line-height: 1; width: 40px; height: 40px;
    border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer;
  }
  .cal-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; margin-bottom: 4px; }
  .cal-weekdays span { text-align: center; font-size: 0.68rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }
  .cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; margin-bottom: 18px; }
  .cal-cell {
    aspect-ratio: 1 / 1; background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
    padding: 4px; cursor: pointer; display: flex; flex-direction: column; gap: 3px; min-width: 0;
  }
  .cal-cell.other-month { opacity: 0.35; }
  .cal-cell.today { border-color: var(--accent); border-width: 1.5px; }
  .cal-cell.selected { background: var(--surface-soft); box-shadow: inset 0 0 0 1.5px var(--accent); }
  .cal-cell .daynum { font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; color: var(--ink-soft); }
  .cal-cell.overdue .daynum { color: var(--urgent); font-weight: 600; }
  .cal-cell .dots { display: flex; flex-wrap: wrap; gap: 3px; margin-top: auto; align-items: center; }
  .cal-cell .dots span { width: 10px; height: 10px; border-radius: 50%; flex: none; box-shadow: 0 0 0 1px color-mix(in srgb, var(--surface) 60%, transparent); }
  .cal-cell .more { font-size: 0.62rem; font-weight: 600; color: var(--ink-soft); font-family: "IBM Plex Mono", monospace; }
  .cal-agenda { margin-bottom: 18px; }
  .cal-agenda h3 { font-size: 0.95rem; font-weight: 600; margin: 0 0 8px; color: var(--ink-soft); font-family: "Work Sans", sans-serif; }
  .cal-nodate {
    background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  }
  .cal-nodate h3 { font-size: 0.78rem; font-weight: 600; color: var(--ink-soft); margin: 0 0 8px; text-transform: uppercase; letter-spacing: 0.03em; font-family: "Work Sans", sans-serif; }
  .cal-nodate-row { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: 0.88rem; }
  .cal-nodate-row .tag-label { flex: none; }
  .cal-nodate-summary { font-size: 0.82rem; color: var(--ink-soft); margin-top: 6px; }

  form#add-form {
    background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
    padding: 12px; box-shadow: var(--shadow); margin-bottom: 22px;
  }
  form#add-form input[type="text"] {
    width: 100%; border: none; background: transparent; font-family: "Work Sans", sans-serif;
    font-size: 1rem; color: var(--ink); padding: 6px 4px 10px; outline: none;
  }
  form#add-form input[type="text"]::placeholder { color: var(--ink-soft); }
  .composer-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; border-top: 1px solid var(--line); padding-top: 10px; }
  select, input[type="date"], textarea, .ed-text {
    font-family: "Work Sans", sans-serif; font-size: 0.9rem; color: var(--ink);
    background: var(--surface-soft); border: 1px solid var(--line); border-radius: 8px;
    padding: 9px 10px;
  }
  .composer-row button {
    margin-left: auto; font-family: "Work Sans", sans-serif; font-weight: 600; font-size: 0.9rem;
    background: var(--accent); color: var(--accent-ink); border: none; border-radius: 8px;
    padding: 10px 18px; cursor: pointer;
  }
  .composer-row button:disabled { opacity: 0.5; cursor: default; }
  button:focus-visible, .chip:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 2px;
  }

  ul.tasks { list-style: none; margin: 0 0 8px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
  li.task {
    background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
    padding: 12px 14px; display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px; box-shadow: var(--shadow);
  }
  li.task input[type="checkbox"] {
    appearance: none; width: 22px; height: 22px; min-width: 22px; margin: 1px 0 0;
    border: 1.5px solid var(--ink-soft); border-radius: 6px; cursor: pointer; position: relative;
  }
  li.task input[type="checkbox"]:checked {
    background: var(--accent); border-color: var(--accent);
  }
  li.task input[type="checkbox"]:checked::after {
    content: ""; position: absolute; left: 7px; top: 2px; width: 5px; height: 10px;
    border: solid var(--accent-ink); border-width: 0 2px 2px 0; transform: rotate(40deg);
  }
  .task-body { flex: 1; min-width: 0; }
  .task-text { font-size: 0.97rem; line-height: 1.4; overflow-wrap: anywhere; }
  .task-notes { font-size: 0.85rem; line-height: 1.4; color: var(--ink-soft); margin-top: 4px; white-space: pre-wrap; overflow-wrap: anywhere; }
  .task-meta { display: flex; align-items: center; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
  .tag-label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; display: inline-flex; align-items: center; gap: 5px; }
  .tag-label .dot { width: 7px; height: 7px; border-radius: 50%; }
  .badge {
    font-size: 0.72rem; font-weight: 500; padding: 2px 8px; border-radius: 999px;
    font-family: "IBM Plex Mono", monospace;
  }
  .badge-urgent { background: color-mix(in srgb, var(--urgent) 16%, transparent); color: var(--urgent); }
  .badge-soon { background: color-mix(in srgb, var(--soon) 16%, transparent); color: var(--soon); }
  .badge-none { background: var(--surface-soft); color: var(--ink-soft); }
  .badge-overdue { background: var(--urgent); color: var(--surface); font-weight: 600; }
  li.task.overdue { border-color: color-mix(in srgb, var(--urgent) 55%, var(--line)); }
  .progress { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; margin-top: 4px; }
  .progress .segs { display: flex; gap: 4px; flex: 1 1 120px; max-width: 180px; }
  .duectl { display: flex; align-items: center; gap: 6px; margin-left: auto; }
  .duectl select, .duectl input[type="date"] { font-size: 0.8rem; min-height: 36px; padding: 4px 8px; max-width: 100%; }
  .duectl .due-sel { color: var(--accent); font-weight: 600; }
  .duectl .due-cancel { border: none; background: none; color: var(--ink-soft); font-size: 0.8rem; min-height: 36px; padding: 0 6px; cursor: pointer; font-family: "Work Sans", sans-serif; }
  .progress .seg {
    flex: 1; height: 28px; padding: 9px 0; border: none; background: none; cursor: pointer; position: relative;
  }
  .progress .seg::before {
    content: ""; position: absolute; left: 0; right: 0; top: 9px; bottom: 9px;
    border-radius: 5px; background: var(--surface-soft); border: 1px solid var(--line);
  }
  .progress .seg.on::before { background: var(--pcol); border-color: var(--pcol); }
  .progress[data-p="25"] { --pcol: var(--p25); }
  .progress[data-p="50"] { --pcol: var(--p50); }
  .progress[data-p="75"] { --pcol: var(--p75); }
  .progress[data-p="100"] { --pcol: var(--p100); }
  .progress[data-p="100"] .plabel { color: var(--p100); font-weight: 500; }
  .progress .plabel { font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--ink-soft); white-space: nowrap; min-width: 4.5em; }
  button.edit-btn {
    flex: none; font-family: "Work Sans", sans-serif; font-size: 0.8rem; font-weight: 600;
    min-height: 40px; padding: 0 12px; margin: -6px -6px 0 0; border: none; background: none;
    color: var(--accent); cursor: pointer; border-radius: 8px;
  }

  .editor {
    flex-basis: 100%; border-top: 1px solid var(--line); padding-top: 12px;
    display: flex; flex-direction: column; gap: 10px;
  }
  .editor label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); display: flex; flex-direction: column; gap: 5px; }
  .editor .ed-text, .editor textarea { width: 100%; font-size: 1rem; }
  .editor textarea { min-height: 90px; resize: vertical; line-height: 1.4; }
  .editor .ed-row { display: flex; gap: 8px; flex-wrap: wrap; }
  .editor .ed-row label { flex: 1 1 140px; min-width: 0; }
  .editor .ed-row select, .editor .ed-row input[type="date"] { width: 100%; font-size: 1rem; }
  .editor .ed-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
  .editor .ed-actions button {
    font-family: "Work Sans", sans-serif; font-weight: 600; font-size: 0.9rem;
    min-height: 44px; padding: 0 18px; border-radius: 8px; cursor: pointer; border: 1px solid var(--line);
    background: var(--surface); color: var(--ink);
  }
  .editor .ed-actions button.save { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
  .editor .ed-actions button.del { margin-left: auto; color: var(--urgent); border-color: color-mix(in srgb, var(--urgent) 40%, var(--line)); }
  .editor .ed-actions button.del.armed { background: var(--urgent); color: var(--surface); border-color: var(--urgent); }

  .sheet-backdrop {
    position: fixed; inset: 0; z-index: 50; background: rgba(10, 16, 14, 0.5);
    display: flex; align-items: flex-end; justify-content: center;
  }
  .sheet {
    background: var(--bg); width: 100%; max-width: 720px; max-height: 80%; overflow-y: auto;
    border-radius: 16px 16px 0 0; padding: 16px 18px; padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
    display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow);
  }
  .sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .sheet-head h2 { font-size: 1.15rem; font-weight: 600; }
  .sheet-close {
    flex: none; font-family: "Work Sans", sans-serif; font-weight: 600; font-size: 0.9rem; min-height: 44px; padding: 0 16px;
    border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer;
  }
  .day-empty { color: var(--ink-soft); font-size: 0.9rem; padding: 8px 0; }
  .tidy-btn {
    width: 100%; font-family: "Work Sans", sans-serif; font-weight: 600; font-size: 0.9rem; min-height: 44px;
    border-radius: 10px; border: 1px solid color-mix(in srgb, var(--urgent) 45%, var(--line));
    background: color-mix(in srgb, var(--urgent) 10%, var(--surface)); color: var(--urgent);
    cursor: pointer; margin-bottom: 14px;
  }
  .tidy-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
  .tidy-actions button {
    font-family: "Work Sans", sans-serif; font-weight: 600; font-size: 0.82rem; min-height: 40px; padding: 0 12px;
    border-radius: 8px; border: 1px solid var(--line); background: var(--surface-soft); color: var(--ink); cursor: pointer;
  }
  .tidy-actions button.done { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
  .focus-h {
    font-family: "Work Sans", sans-serif; font-size: 0.78rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.04em; color: var(--ink-soft); margin: 16px 0 8px;
  }
  .focus-note { color: var(--ink-soft); font-size: 0.88rem; margin-top: 12px; }
  .trash-date { font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; white-space: nowrap; }
  section.empty { text-align: center; padding: 40px 20px; color: var(--ink-soft); }

  details.fold { margin-top: 26px; }
  details.fold summary {
    cursor: pointer; font-family: "Fraunces", serif; font-weight: 600; font-size: 1.05rem;
    color: var(--ink-soft); list-style: none; display: flex; align-items: center; gap: 6px; min-height: 40px;
  }
  details.fold summary::-webkit-details-marker { display: none; }
  details.fold summary::before { content: "\25B8"; font-size: 0.8em; transition: transform 0.15s; }
  details.fold[open] summary::before { transform: rotate(90deg); }
  ul.done-list { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
  li.done-item {
    display: flex; align-items: center; gap: 10px; padding: 6px 4px; border-bottom: 1px solid var(--line);
    font-size: 0.9rem; color: var(--ink-soft); flex-wrap: wrap;
  }
  li.done-item .done-text { text-decoration: line-through; flex: 1 1 160px; min-width: 0; overflow-wrap: anywhere; }
  li.done-item button {
    border: none; background: none; color: var(--accent); font-size: 0.8rem; cursor: pointer;
    font-family: "Work Sans", sans-serif; font-weight: 600; white-space: nowrap; min-height: 40px; padding: 0 8px;
  }
  li.done-item button.rm { color: var(--urgent); }

  .status-line { color: var(--ink-soft); font-size: 0.85rem; margin: 10px 0; }

  /* ---------- Self-hosted additions (not in the v12 artifact) ---------- */
  /* Bug fix: the hidden attribute must beat display rules such as
     .sheet-backdrop { display: flex }, or closed sheets cover the page. */
  [hidden] { display: none !important; }
  /* Tag colours as classes, replacing v12's inline style attributes so the
     page runs under a strict Content-Security-Policy. Same variables. */
  .tc-personal { color: var(--tag-personal); }
  .tc-caravan { color: var(--tag-caravan); }
  .tc-cc { color: var(--tag-cc); }
  .tc-bc { color: var(--tag-bc); }
  .bg-personal { background: var(--tag-personal); }
  .bg-caravan { background: var(--tag-caravan); }
  .bg-cc { background: var(--tag-cc); }
  .bg-bc { background: var(--tag-bc); }
  .grow { flex: 1; }
  /* Sign out this device (needed now the list has its own sign-in). */
  .signout-wrap { margin-top: 28px; text-align: center; }
  .signout {
    background: none; border: 0; color: var(--ink-soft); font: inherit; font-size: 0.8rem;
    text-decoration: underline; min-height: 40px; padding: 0 8px; cursor: pointer;
  }