/* =========================================================================
   project_board styles
   Re-theme the whole app by overriding the tokens in :root below
   (e.g. in your own stylesheet loaded after this one). Nothing else
   needs to change.
   ========================================================================= */
:root {
  --pb-canvas:   #f5f6f8;
  --pb-surface:  #eceef1;
  --pb-card:     #ffffff;
  --pb-ink:      #1d2530;
  --pb-muted:    #6b7785;
  --pb-line:     #dfe3e8;
  --pb-accent:   #4c5fd5;
  --pb-accent-ink:#ffffff;
  --pb-danger:   #c8102e;
  --pb-radius:   10px;
  --pb-radius-lg:14px;
  --pb-shadow:   0 1px 2px rgba(20,30,48,.08), 0 1px 1px rgba(20,30,48,.04);
  --pb-shadow-lg:0 8px 28px rgba(20,30,48,.18);
  --pb-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--pb-font);
  font-size: 14px;
  color: var(--pb-ink);
  background: var(--pb-canvas);
  -webkit-font-smoothing: antialiased;
}

/* ---- Topbar ------------------------------------------------------------- */
.pb-topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1.1rem;
  background: var(--pb-card);
  border-bottom: 1px solid var(--pb-line);
}
.pb-brand {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 700; letter-spacing: -.01em; color: var(--pb-ink); text-decoration: none;
}
.pb-brand-mark {
  width: 16px; height: 16px; border-radius: 5px;
  background: linear-gradient(135deg, var(--pb-accent), #7b6cf0);
}
.pb-user { color: var(--pb-muted); font-size: .85rem; }

.pb-main { padding: 0; }

/* ---- Generic page (lists / forms) -------------------------------------- */
.pb-page { padding: 1.6rem clamp(1rem, 4vw, 2.4rem); }
.pb-page-narrow { max-width: 560px; }
.pb-page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.2rem; }
.pb-h1 { font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; margin: 0; }

.pb-board-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.pb-board-card {
  display: flex; flex-direction: column; gap: .35rem;
  padding: 1rem; background: var(--pb-card); border: 1px solid var(--pb-line);
  border-radius: var(--pb-radius-lg); text-decoration: none; color: var(--pb-ink);
  box-shadow: var(--pb-shadow); transition: transform .12s ease, box-shadow .12s ease;
}
.pb-board-card:hover { transform: translateY(-2px); box-shadow: var(--pb-shadow-lg); }
.pb-board-card-name { font-weight: 650; }
.pb-board-card-desc { color: var(--pb-muted); font-size: .85rem; }
.pb-board-card-meta { margin-top: .3rem; color: var(--pb-muted); font-size: .75rem; }

.pb-empty { text-align: center; padding: 3rem 1rem; color: var(--pb-muted); }

/* ---- Buttons ------------------------------------------------------------ */
.pb-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .42rem .8rem; font-size: .85rem; font-weight: 550;
  border: 1px solid var(--pb-line); border-radius: 8px;
  background: var(--pb-card); color: var(--pb-ink); cursor: pointer; text-decoration: none;
  transition: background .12s ease, border-color .12s ease;
}
.pb-btn:hover { border-color: #c4cad2; background: #fbfbfc; }
.pb-btn-primary { background: var(--pb-accent); border-color: var(--pb-accent); color: var(--pb-accent-ink); }
.pb-btn-primary:hover { background: #3f51c4; border-color: #3f51c4; }
.pb-btn-danger { color: var(--pb-danger); border-color: #f0c2c8; background: #fff6f7; }
.pb-btn-danger:hover { background: #fdecee; }
.pb-btn-sm { padding: .3rem .55rem; font-size: .78rem; }
.pb-link-danger { background: none; border: none; color: var(--pb-danger); cursor: pointer; font-size: .76rem; padding: 0; }
.pb-link-danger:hover { text-decoration: underline; }

/* ---- Board header / toolbar -------------------------------------------- */
.pb-board-page { padding: 1.1rem clamp(.8rem, 3vw, 1.6rem) 2rem; }
.pb-board-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.pb-board-title { display: flex; align-items: center; gap: .65rem; }
.pb-back { text-decoration: none; color: var(--pb-muted); font-size: 1.2rem; }
.pb-role-badge {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700;
  padding: .15rem .5rem; border-radius: 999px; background: var(--pb-surface); color: var(--pb-muted);
}
.pb-role-admin { background: #e8eafc; color: #3a45b8; }
.pb-role-member { background: #e6f4ec; color: #1f8a4c; }
.pb-role-viewer { background: #eef0f3; color: #6b7785; }
.pb-toolbar { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ---- Columns ------------------------------------------------------------ */
.pb-columns { overflow-x: auto; padding-bottom: .6rem; }
.pb-columns-inner { display: flex; gap: 1rem; align-items: flex-start; min-height: 60vh; }
.pb-col {
  --col-accent: var(--pb-accent);
  flex: 0 0 290px; width: 290px;
  background: var(--pb-surface); border-radius: var(--pb-radius-lg);
  padding: .65rem .65rem .8rem; display: flex; flex-direction: column;
}
.pb-col-head {
  display: flex; align-items: center; gap: .5rem; position: relative;
  padding: .2rem .25rem .55rem; cursor: grab;
  border-bottom: 2px solid var(--col-accent);
  margin-bottom: .6rem;
}
.pb-col-name {
  font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em;
  flex: 1; color: var(--pb-ink);
}
.pb-col-count {
  font-variant-numeric: tabular-nums; font-size: .72rem; font-weight: 600;
  color: var(--pb-muted); background: var(--pb-card); border-radius: 999px; padding: .1rem .45rem;
}
.pb-over-wip { color: #fff; background: var(--pb-danger); }
.pb-col-menu-btn { background: none; border: none; cursor: pointer; color: var(--pb-muted); font-size: 1.1rem; line-height: 1; padding: 0 .2rem; }
.pb-col-menu {
  display: none; position: absolute; top: 100%; right: 0; z-index: 20;
  background: var(--pb-card); border: 1px solid var(--pb-line); border-radius: 10px;
  box-shadow: var(--pb-shadow-lg); padding: .6rem; width: 250px; flex-direction: column; gap: .5rem;
}
.pb-col-menu.open { display: flex; }
.pb-inline-edit { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.pb-inline-edit input[type=text] { flex: 1 1 100%; }

.pb-cards { display: flex; flex-direction: column; gap: .55rem; min-height: 12px; }

/* ---- Card (signature element) ------------------------------------------ */
.pb-card {
  background: var(--pb-card); border-radius: var(--pb-radius);
  padding: .6rem .7rem; box-shadow: var(--pb-shadow); cursor: pointer;
  border: 1px solid transparent;
  transition: transform .1s ease, box-shadow .1s ease, border-color .1s ease;
}
.pb-card:hover { transform: translateY(-1px); box-shadow: var(--pb-shadow-lg); border-color: var(--pb-line); }
.pb-card:focus-visible { outline: 2px solid var(--pb-accent); outline-offset: 2px; }
.pb-card-ghost { opacity: .45; }
.pb-card-drag { box-shadow: var(--pb-shadow-lg); transform: rotate(1.5deg); }
.pb-card-labels { display: flex; flex-wrap: wrap; gap: .3rem; margin-bottom: .4rem; }
.pb-card-title { font-weight: 550; line-height: 1.35; }
.pb-card-meta { display: flex; align-items: center; gap: .5rem; margin-top: .5rem; color: var(--pb-muted); font-size: .76rem; }
.pb-card-meta .pb-avatar { margin-left: auto; }
.pb-due.pb-overdue { color: var(--pb-danger); font-weight: 600; }

.pb-chip {
  display: inline-block; font-size: .68rem; font-weight: 600;
  padding: .1rem .45rem; border-radius: 6px; line-height: 1.5;
}
.pb-avatar {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 50%; font-size: .68rem; font-weight: 700;
  background: var(--pb-accent); color: #fff;
}

.pb-add-card { margin-top: .55rem; }
.pb-add-card input {
  width: 100%; border: 1px dashed #c4cad2; background: transparent; border-radius: 8px;
  padding: .5rem .6rem; font-size: .82rem; color: var(--pb-ink);
}
.pb-add-card input:focus { outline: none; border-color: var(--pb-accent); background: var(--pb-card); }

/* ---- Forms -------------------------------------------------------------- */
.pb-form input[type=text], .pb-form textarea, .pb-form input,
.pb-field input, .pb-field textarea, .pb-field select,
input[type=text], input[type=number], input[type=date], input[type=email],
input[type=search], input[type=password],
textarea, select {
  font-family: inherit; font-size: .88rem; color: var(--pb-ink);
  border: 1px solid var(--pb-line); border-radius: 8px; padding: .45rem .55rem;
  background: var(--pb-card); width: 100%;
}
input[type=search] { -webkit-appearance: none; appearance: none; }
input[type=search]::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }
textarea { resize: vertical; }
.pb-field { display: block; margin-bottom: .8rem; }
.pb-field-label { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--pb-muted); margin-bottom: .25rem; font-weight: 600; }
.pb-field-row { display: flex; gap: .8rem; }
.pb-field-row .pb-field { flex: 1; }
.pb-form-actions { display: flex; gap: .6rem; align-items: center; margin-top: .4rem; }

/* ---- Modal -------------------------------------------------------------- */
.pb-modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,30,48,.42);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 4vh 1rem; z-index: 100; overflow-y: auto;
}
.pb-modal {
  position: relative; background: var(--pb-card); border-radius: var(--pb-radius-lg);
  box-shadow: var(--pb-shadow-lg); width: 100%; max-width: 760px; padding: 1.4rem;
}
.pb-modal-narrow { max-width: 600px; }
.pb-modal-close {
  position: absolute; top: .7rem; right: .8rem; background: none; border: none;
  font-size: 1.4rem; line-height: 1; cursor: pointer; color: var(--pb-muted);
}
.pb-modal-heading { margin: 0 0 1rem; font-size: 1.1rem; font-weight: 700; }
.pb-modal-body { display: flex; gap: 1.4rem; }
.pb-modal-main { flex: 1 1 60%; min-width: 0; }
.pb-modal-side { flex: 0 0 34%; border-left: 1px solid var(--pb-line); padding-left: 1.1rem; }
.pb-side-title { font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--pb-muted); margin: 1.2rem 0 .5rem; }
.pb-card-form .pb-side-title:first-child { margin-top: 0; }
.pb-card-detail-title { margin: 0 0 .6rem; font-size: 1.15rem; }
.pb-card-detail-desc { color: var(--pb-ink); }
.pb-card-detail-meta { color: var(--pb-muted); font-size: .82rem; display: flex; gap: 1rem; }

.pb-label-toggles { display: flex; flex-wrap: wrap; gap: .4rem; }
.pb-chip-toggle { border: none; cursor: pointer; }
.pb-chip-toggle.is-off { opacity: .35; }

.pb-toast {
  position: absolute; top: .8rem; left: 50%; transform: translateX(-50%);
  background: #1f8a4c; color: #fff; font-size: .76rem; padding: .25rem .7rem; border-radius: 999px;
}

/* comments / attachments */
.pb-comments, .pb-attachments, .pb-activity, .pb-label-list, .pb-member-list { list-style: none; margin: 0; padding: 0; }
.pb-comment { padding: .5rem 0; border-bottom: 1px solid var(--pb-line); }
.pb-comment-head { display: flex; align-items: center; gap: .5rem; font-size: .74rem; color: var(--pb-muted); }
.pb-comment-author { font-weight: 600; color: var(--pb-ink); }
.pb-comment-head time { margin-right: auto; }
.pb-comment-body { margin-top: .2rem; }
.pb-comment-form, .pb-attach-form, .pb-label-form, .pb-member-form { display: flex; gap: .5rem; align-items: flex-start; margin-top: .6rem; flex-wrap: wrap; }
.pb-comment-form textarea { flex: 1; }
.pb-attachment { display: flex; align-items: center; gap: .5rem; padding: .3rem 0; font-size: .84rem; }
.pb-attachment-size { color: var(--pb-muted); font-size: .74rem; margin-right: auto; }

.pb-activity-item { font-size: .8rem; color: var(--pb-muted); padding: .35rem 0; border-bottom: 1px dashed var(--pb-line); }
.pb-activity-actor { font-weight: 600; color: var(--pb-ink); }
.pb-activity-item time { display: block; font-size: .7rem; margin-top: .1rem; }

.pb-label-row, .pb-member-row { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; padding: .5rem 0; border-bottom: 1px solid var(--pb-line); }
.pb-member-name { font-weight: 550; }
.pb-member-row .pb-role-form { margin-left: auto; }
.pb-member-row select, .pb-role-form select { width: auto; }
.pb-palette { display: flex; gap: .35rem; flex-wrap: wrap; }
.pb-swatch { width: 22px; height: 22px; border-radius: 6px; cursor: pointer; position: relative; }
.pb-swatch input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.pb-swatch:has(input:checked) { outline: 2px solid var(--pb-ink); outline-offset: 2px; }

.pb-muted { color: var(--pb-muted); font-size: .82rem; }
.pb-error { color: var(--pb-danger); font-size: .82rem; }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 640px) {
  .pb-modal-body { flex-direction: column; }
  .pb-modal-side { border-left: none; border-top: 1px solid var(--pb-line); padding-left: 0; padding-top: .6rem; }
  .pb-col { flex-basis: 84vw; width: 84vw; }
  .pb-field-row { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* =========================================================================
   v2: notifications, filter bar, subcards, archive
   ========================================================================= */
.pb-topbar-right { display: flex; align-items: center; gap: .8rem; }
.pb-bell {
  position: relative; background: none; border: none; cursor: pointer;
  color: var(--pb-muted); display: inline-flex; align-items: center; padding: .25rem;
  border-radius: 8px;
}
.pb-bell:hover { color: var(--pb-ink); background: var(--pb-surface); }
.pb-badge {
  position: absolute; top: -3px; right: -4px; min-width: 16px; height: 16px;
  padding: 0 4px; border-radius: 999px; background: var(--pb-danger); color: #fff;
  font-size: .62rem; font-weight: 700; line-height: 16px; text-align: center;
}

.pb-notif-host { position: relative; z-index: 200; }
.pb-notif-backdrop { position: fixed; inset: 0; z-index: 200; }
.pb-notif-drop {
  position: fixed; top: 52px; right: 12px; width: min(340px, 92vw);
  background: var(--pb-card); border: 1px solid var(--pb-line); border-radius: 12px;
  box-shadow: var(--pb-shadow-lg); overflow: hidden;
}
.pb-notif-head { padding: .7rem .9rem; font-weight: 700; border-bottom: 1px solid var(--pb-line); font-size: .9rem; }
.pb-notif-list { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow-y: auto; }
.pb-notif-item { border-bottom: 1px solid var(--pb-line); }
.pb-notif-item.is-unread { background: #f4f6fe; }
.pb-notif-link { display: block; padding: .6rem .9rem; text-decoration: none; color: var(--pb-ink); }
.pb-notif-link:hover { background: var(--pb-surface); }
.pb-notif-verb { display: block; font-size: .84rem; }
.pb-notif-board { display: block; color: var(--pb-muted); font-size: .72rem; margin-top: .15rem; }
.pb-notif-empty { padding: .9rem; }

/* filter bar */
.pb-filterbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
  margin-bottom: .9rem;
}
.pb-filter-input { width: auto; min-width: 180px; flex: 0 1 240px; }
.pb-filter-select { width: auto; }
.pb-filter-check { display: inline-flex; align-items: center; gap: .35rem; font-size: .82rem; color: var(--pb-muted); }
.pb-filter-check input { width: auto; }

/* subcards + progress */
.pb-subprog { font-variant-numeric: tabular-nums; }
.pb-subprog-inline { font-weight: 400; color: var(--pb-muted); font-size: .72rem; text-transform: none; letter-spacing: 0; }
.pb-progress { height: 6px; background: var(--pb-surface); border-radius: 999px; overflow: hidden; margin: .1rem 0 .6rem; }
.pb-progress-bar { height: 100%; background: var(--pb-accent); border-radius: 999px; }
.pb-subcards { list-style: none; margin: 0; padding: 0; }
.pb-subcard { display: flex; align-items: center; gap: .5rem; padding: .3rem 0; border-bottom: 1px solid var(--pb-line); }
.pb-subcard-open { background: none; border: none; color: var(--pb-ink); cursor: pointer; text-align: left; padding: 0; font-size: .85rem; flex: 1; }
.pb-subcard-open:hover { color: var(--pb-accent); text-decoration: underline; }
.pb-subcard-col { color: var(--pb-muted); font-size: .72rem; }
.pb-subcard-form { margin-top: .5rem; }
.pb-subcard-form input { width: 100%; border: 1px dashed #c4cad2; background: transparent; border-radius: 8px; padding: .4rem .55rem; font-size: .82rem; }
.pb-subcard-form input:focus { outline: none; border-color: var(--pb-accent); background: var(--pb-card); }

/* parent link + mention hint */
.pb-parent-link {
  display: inline-block; margin: 0 0 .8rem; background: var(--pb-surface);
  border: none; border-radius: 8px; padding: .35rem .6rem; cursor: pointer;
  color: var(--pb-muted); font-size: .8rem;
}
.pb-parent-link:hover { color: var(--pb-ink); }
.pb-mention-hint { margin: .6rem 0 0; }

/* archived drawer */
.pb-archived-list { list-style: none; margin: 0; padding: 0; }
.pb-archived-row { display: flex; align-items: center; gap: .6rem; padding: .45rem 0; border-bottom: 1px solid var(--pb-line); }
.pb-archived-title { flex: 1; font-size: .86rem; }
.pb-archived-meta { color: var(--pb-muted); font-size: .72rem; }

.pb-mention-box {
  position: absolute; z-index: 9999; background: #fff;
  border: 1px solid #dfe3e8; border-radius: 8px; box-shadow: 0 8px 28px rgba(20,30,48,.18);
  max-height: 220px; overflow-y: auto; overscroll-behavior: contain; padding: 4px;
}
.pb-mention-item { padding: .35rem .55rem; border-radius: 6px; cursor: pointer; font-size: .85rem; }
.pb-mention-item.is-active, .pb-mention-item:hover { background: #f4f6fe; }
.pb-member-color { width: 28px; height: 28px; padding: 0; border: 1px solid #dfe3e8; border-radius: 6px; cursor: pointer; }
/* =========================================================================
   Dark mode, transitions, bottom action bar, misc (v3)
   ========================================================================= */
:root { --pb-accent-soft: #f4f6fe; }

[data-theme="dark"] {
  --pb-canvas:   #0f1115;
  --pb-surface:  #171a21;
  --pb-card:     #1d212b;
  --pb-ink:      #e6e9ef;
  --pb-muted:    #97a1b0;
  --pb-line:     #2b313c;
  --pb-accent:   #6b7cff;
  --pb-accent-ink:#0f1115;
  --pb-danger:   #ff6b7d;
  --pb-accent-soft:#262c3a;
  --pb-shadow:   0 1px 2px rgba(0,0,0,.5), 0 1px 1px rgba(0,0,0,.3);
  --pb-shadow-lg:0 8px 28px rgba(0,0,0,.55);
}

/* smooth theme transition */
body, .pb-topbar, .pb-col, .pb-card, .pb-modal, .pb-notif-drop, .pb-board-card,
.pb-btn, input, select, textarea, .pb-col-menu, .pb-mention-box {
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

/* re-point hardcoded colours so dark mode looks right */
[data-theme="dark"] .pb-btn:hover { border-color: var(--pb-line); background: #232833; }
[data-theme="dark"] .pb-btn-primary:hover { background: #5566e6; border-color: #5566e6; }
[data-theme="dark"] .pb-btn-danger { background: #2a1a1e; border-color: #5a2a32; }
[data-theme="dark"] .pb-btn-danger:hover { background: #34202552; }
[data-theme="dark"] .pb-role-admin  { background: #2a2f55; color: #aeb6ff; }
[data-theme="dark"] .pb-role-member { background: #163524; color: #7fe0a6; }
[data-theme="dark"] .pb-role-viewer { background: #262c3a; color: #aab3c2; }
[data-theme="dark"] .pb-notif-item.is-unread { background: var(--pb-accent-soft); }
[data-theme="dark"] .pb-mention-box { background: var(--pb-card); border-color: var(--pb-line); }
[data-theme="dark"] .pb-mention-item.is-active,
[data-theme="dark"] .pb-mention-item:hover { background: var(--pb-accent-soft); }
[data-theme="dark"] .pb-member-color { border-color: var(--pb-line); }
[data-theme="dark"] .pb-add-card input,
[data-theme="dark"] .pb-subcard-form input { border-color: var(--pb-line); }

/* theme toggle icon (moon in light, sun in dark) */
.pb-theme-toggle .pb-icon-sun { display: none; }
.pb-theme-toggle .pb-icon-moon { display: block; }
[data-theme="dark"] .pb-theme-toggle .pb-icon-sun { display: block; }
[data-theme="dark"] .pb-theme-toggle .pb-icon-moon { display: none; }

/* bottom action bar in the card modal */
.pb-modal-actions {
  display: flex; align-items: center; gap: .6rem;
  margin-top: 1.2rem; padding-top: .9rem; border-top: 1px solid var(--pb-line);
}
.pb-actions-spacer { flex: 1; }
.pb-saved-indicator { color: #2f9e44; font-size: .8rem; opacity: 0; transition: opacity .2s ease; }
.pb-saved-indicator.show { opacity: 1; }
[data-theme="dark"] .pb-saved-indicator { color: #7fe0a6; }

/* top add-card spacing */
.pb-add-card-top { margin-top: 0; margin-bottom: .55rem; }

/* history load-more row */
.pb-loadmore-row { list-style: none; padding: .5rem 0 0; border: none; }

/* label color picker in the label row */
.pb-label-row .pb-member-color { flex: 0 0 auto; }

/* =========================================================================
   v4: due colour, overdue ring, categories, initials, done toggle, conflict
   ========================================================================= */
.pb-due { color: var(--pb-ink); }
.pb-due.pb-overdue { color: var(--pb-danger); font-weight: 600; }

.pb-card.pb-card-overdue {
  border: 1px solid var(--pb-danger);
  box-shadow: 0 0 0 2px var(--pb-danger), var(--pb-shadow);
}
.pb-card.pb-card-overdue:hover {
  border-color: var(--pb-danger);
  box-shadow: 0 0 0 2px var(--pb-danger), var(--pb-shadow-lg);
}

/* categories (modal section + filter) */
.pb-cat-toggles { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .4rem; }
.pb-cat-chip {
  display: inline-block; font-size: .72rem; font-weight: 600;
  padding: .15rem .5rem; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--pb-line); background: var(--pb-surface); color: var(--pb-ink);
}
.pb-cat-chip.is-off { opacity: .55; }
.pb-cat-chip.is-on { background: var(--pb-accent); color: var(--pb-accent-ink); border-color: var(--pb-accent); }
.pb-cat-form { display: flex; gap: .5rem; margin-top: .4rem; }

/* member initials input */
.pb-initials-input { width: 52px; text-align: center; }

/* label edit row */
.pb-label-edit { display: flex; gap: .4rem; align-items: center; margin-left: auto; }

/* done-column toggle in the column menu */
.pb-col-done-toggle { display: flex; align-items: center; gap: .3rem; font-size: .78rem; color: var(--pb-muted); flex: 1 1 100%; }
.pb-col-done-toggle input { width: auto; }

/* conflict state on the saved indicator */
.pb-saved-indicator.pb-conflict { color: var(--pb-danger); opacity: 1; }


/* category chip remove + manage list */
.pb-cat-chip { display: inline-flex; align-items: center; }
.pb-cat-chip .pb-cat-x {
  background: none; border: none; color: inherit; cursor: pointer;
  font-size: 1em; line-height: 1; margin-left: .3rem; padding: 0;
}
.pb-cat-manage { margin-top: .6rem; font-size: .8rem; }
.pb-cat-manage summary { cursor: pointer; color: var(--pb-muted); }
.pb-cat-manage-list { list-style: none; margin: .4rem 0 0; padding: 0; }
.pb-cat-manage-list li { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .2rem 0; }

/* =========================================================================
   v5: @mention highlight overlay, comment editing
   ========================================================================= */
:root { --pb-mention-hl: #d7e3ff; }
[data-theme="dark"] { --pb-mention-hl: rgba(96,128,224,.38); }

/* highlight overlay behind mention textareas */
.pb-hl-wrap { position: relative; display: block; }
.pb-hl-backdrop {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
  background: transparent; z-index: 0;
}
.pb-hl-content {
  margin: 0; white-space: pre-wrap; overflow-wrap: break-word; word-break: break-word;
  color: transparent;
}
.pb-hl-content .pb-mention-hl {
  color: transparent; background: var(--pb-mention-hl); border-radius: 3px;
}
.pb-hl-textarea {
  position: relative; z-index: 1; background: transparent !important;
}

/* comment editing */
.pb-comment-action {
  background: none; border: none; padding: 0; cursor: pointer;
  color: var(--pb-accent); font-size: .78rem;
}
.pb-comment-action:hover { text-decoration: underline; }
.pb-comment-edit-form { display: flex; flex-direction: column; gap: .4rem; }
.pb-comment-edit-area {
  width: 100%; box-sizing: border-box; resize: vertical;
}
.pb-comment-edit-actions { display: flex; gap: .5rem; }

/* =========================================================================
   v6: live presence + confetti
   ========================================================================= */
.pb-confetti-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 100000; }

.pb-presence-wrap { margin: .1rem 2rem .1rem 0; }
.pb-presence { display: flex; align-items: center; gap: .55rem; flex-wrap: wrap; }
.pb-presence-avatars { display: flex; }
.pb-presence-avatar {
  width: 26px; height: 26px; font-size: .68rem; margin-left: -6px;
  border: 2px solid var(--pb-card); box-shadow: 0 0 0 1px var(--pb-line);
}
.pb-presence-avatars .pb-presence-avatar:first-child { margin-left: 0; }
.pb-avatar.pb-presence-editing { box-shadow: 0 0 0 2px var(--pb-accent); }
.pb-avatar.pb-presence-typing { box-shadow: 0 0 0 2px #2f9e44; animation: pb-presence-pulse 1s ease-in-out infinite; }
@keyframes pb-presence-pulse {
  0%, 100% { box-shadow: 0 0 0 2px #2f9e44; }
  50% { box-shadow: 0 0 0 4px rgba(47,158,68,.35); }
}
.pb-presence-status { font-size: .78rem; color: var(--pb-muted); }
.pb-presence-status.pb-presence-typing { color: #2f9e44; }

/* =========================================================================
   v7: multiple assignees + member emoji badge
   ========================================================================= */
.pb-avatar { position: relative; }
.pb-avatar-emoji {
  position: absolute; right: -4px; bottom: -4px;
  font-size: .6rem; line-height: 1; padding: 1px;
  background: var(--pb-card); border-radius: 50%; box-shadow: 0 0 0 1px var(--pb-line);
}

/* stacked assignee avatars on the card face */
.pb-card-meta .pb-avatar-stack { margin-left: auto; }
.pb-avatar-stack { display: inline-flex; }
.pb-avatar-stack .pb-avatar { margin-left: -7px; border: 2px solid var(--pb-card); }
.pb-avatar-stack .pb-avatar:first-child { margin-left: 0; }

/* assignee checkbox list in the card modal */
.pb-assignees ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem .9rem; }
.pb-assignees li { margin: 0; }
.pb-assignees label { display: inline-flex; align-items: center; gap: .35rem; font-size: .85rem; font-weight: 400; cursor: pointer; }
.pb-assignees input { width: auto; }
.pb-assign-all {
  margin-left: .5rem; font-size: .72rem; font-weight: 600; cursor: pointer;
  background: none; border: 1px solid var(--pb-line); border-radius: 6px;
  padding: .05rem .45rem; color: var(--pb-accent);
}
.pb-field-due { max-width: 220px; }
.pb-emoji-input { width: 46px; text-align: center; }

/* =========================================================================
   v8: profile modal (password + e-mail preferences)
   ========================================================================= */
.pb-profile-section { margin-bottom: 1.4rem; }
.pb-profile-section:last-child { margin-bottom: .3rem; }
.pb-pref-row { display: flex; align-items: flex-start; gap: .5rem; margin: .35rem 0; font-size: .88rem; cursor: pointer; }
.pb-pref-row input { width: auto; margin-top: .15rem; flex: 0 0 auto; }
.pb-pref-main { font-weight: 600; }
.pb-pref-main em { font-weight: 400; color: var(--pb-muted); font-style: normal; }
.pb-pref-sub { margin-left: 1.35rem; padding-left: .7rem; border-left: 2px solid var(--pb-line); }
.pb-pref-note { font-size: .75rem; margin: .55rem 0; }
.pb-saved-note { color: #2f9e44; font-size: .82rem; margin: .2rem 0 .5rem; }
[data-theme="dark"] .pb-saved-note { color: #7fe0a6; }
.pb-help { display: block; font-size: .72rem; margin: -.2rem 0 .4rem; }

/* disappointed smiley when a card is pulled back out of the done column */
.pb-sadface {
  position: fixed; z-index: 100000; pointer-events: none;
  font-size: 64px; line-height: 1;
  transform: translate(-50%, -50%);
  animation: pb-sadface 1.4s ease forwards;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,.25));
}
@keyframes pb-sadface {
  0%   { opacity: 0; transform: translate(-50%,-50%) scale(.4) rotate(0deg); }
  15%  { opacity: 1; transform: translate(-50%,-50%) scale(1.15) rotate(-9deg); }
  30%  { transform: translate(-50%,-50%) scale(1) rotate(9deg); }
  45%  { transform: translate(-50%,-52%) scale(1) rotate(-7deg); }
  60%  { transform: translate(-50%,-56%) scale(1) rotate(5deg); }
  100% { opacity: 0; transform: translate(-50%,-84%) scale(.9) rotate(0deg); }
}

/* =========================================================================
   v9: add-card button, undo toast, help assistant, display preferences
   ========================================================================= */
/* add-card with visible button */
.pb-add-card { display: flex; gap: .4rem; align-items: center; }
.pb-add-card input[name="title"] { flex: 1; }
.pb-add-card-btn {
  border: 1px solid var(--pb-line); background: var(--pb-surface); color: var(--pb-accent);
  border-radius: 6px; padding: .3rem .6rem; font-size: .76rem; font-weight: 600;
  cursor: pointer; white-space: nowrap;
}
.pb-add-card-btn:hover { background: var(--pb-accent); color: #fff; border-color: var(--pb-accent); }

/* undo toast */
.pb-toast-host { position: fixed; left: 1rem; bottom: 1rem; z-index: 100001; display: flex; flex-direction: column; gap: .5rem; }
.pb-toast {
  background: var(--pb-ink); color: var(--pb-canvas); padding: .6rem .9rem; border-radius: 8px;
  box-shadow: var(--pb-shadow-lg); display: flex; align-items: center; gap: .9rem; font-size: .85rem;
}
.pb-toast-out { opacity: 0; transition: opacity .55s ease; }
.pb-toast-undo { background: none; border: none; color: #7aa2ff; font-weight: 700; cursor: pointer; padding: 0; }

/* help assistant widget */
.pb-assistant { position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 100001; }
.pb-assistant-toggle {
  width: 48px; height: 48px; border-radius: 50%; border: none; background: var(--pb-accent);
  color: #fff; font-size: 1.5rem; font-weight: 700; cursor: pointer; box-shadow: var(--pb-shadow-lg);
}
.pb-assistant-panel {
  position: absolute; right: 0; bottom: 62px; width: 330px; max-width: 82vw;
  height: 440px; max-height: 72vh; background: var(--pb-card); border: 1px solid var(--pb-line);
  border-radius: 12px; box-shadow: var(--pb-shadow-lg); display: flex; flex-direction: column; overflow: hidden;
}
.pb-assistant-panel[hidden] { display: none; }
.pb-assistant-head { display: flex; justify-content: space-between; align-items: center; padding: .6rem .85rem; border-bottom: 1px solid var(--pb-line); font-weight: 600; }
.pb-assistant-close { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--pb-muted); }
.pb-assistant-msgs { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: .7rem; display: flex; flex-direction: column; gap: .5rem; }
.pb-bot-msg { padding: .45rem .7rem; border-radius: 10px; font-size: .85rem; max-width: 88%; line-height: 1.45; }
.pb-bot-reply { background: var(--pb-surface); align-self: flex-start; border: 1px solid var(--pb-line); color: var(--pb-ink); }
.pb-bot-user { background: var(--pb-accent); color: #fff; align-self: flex-end; }
.pb-assistant-chips { display: flex; flex-wrap: wrap; gap: .35rem; }
.pb-assistant-chips button { font-size: .72rem; border: 1px solid var(--pb-line); background: var(--pb-surface); border-radius: 12px; padding: .2rem .55rem; cursor: pointer; color: var(--pb-ink); }
.pb-assistant-form { display: flex; gap: .4rem; padding: .55rem; border-top: 1px solid var(--pb-line); }
.pb-assistant-form input { flex: 1; }
.pb-assistant-form button { background: var(--pb-accent); color: #fff; border: none; border-radius: 8px; padding: 0 .75rem; cursor: pointer; }
.pb-bot-action { margin-top: .45rem; }

/* --- display preferences (body classes) --- */
.pb-density-compact .pb-card { padding: .35rem .5rem; }
.pb-density-compact .pb-card-title { font-size: .82rem; }
.pb-density-compact .pb-cards { gap: .3rem; }

.pb-hide-badges .pb-card .pb-meta-item { display: none; }
.pb-hide-emoji .pb-avatar-emoji { display: none; }

.pb-labels-bar .pb-card-labels { gap: 3px; }
.pb-labels-bar .pb-card-labels .pb-chip {
  font-size: 0; height: 6px; min-width: 26px; padding: 0; border-radius: 3px; line-height: 6px;
}

.pb-no-anim * { animation: none !important; transition: none !important; }

/* assistant: clickable card results */
.pb-bot-cards { display: flex; flex-direction: column; gap: .25rem; margin-top: .4rem; }
.pb-bot-card {
  display: block; font-size: .8rem; padding: .3rem .5rem; border-radius: 6px;
  background: var(--pb-card); border: 1px solid var(--pb-line); color: var(--pb-accent);
  text-decoration: none;
}
.pb-bot-card:hover { border-color: var(--pb-accent); }
.pb-bot-text { white-space: pre-wrap; }

/* ---- board chat -------------------------------------------------------- */
.pb-chat-modal { display: flex; flex-direction: column; }
.pb-chat { display: flex; flex-direction: column; height: min(60vh, 460px); }
.pb-chat-msgs {
  flex: 1; overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column; gap: .5rem;
  padding: .5rem .2rem .7rem; margin-top: .4rem;
}
.pb-chat-msg {
  display: flex; flex-direction: column; align-items: flex-start;
  max-width: 82%; align-self: flex-start;
  background: var(--pb-surface); border: 1px solid var(--pb-line);
  border-radius: 12px; padding: .4rem .6rem;
}
.pb-chat-mine { align-self: flex-end; background: var(--pb-accent); border-color: var(--pb-accent); }
.pb-chat-author { font-size: .7rem; font-weight: 700; color: var(--pb-muted); }
.pb-chat-mine .pb-chat-author { color: rgba(255,255,255,.85); }
.pb-chat-body { font-size: .86rem; line-height: 1.4; color: var(--pb-ink); white-space: pre-wrap; word-break: break-word; }
.pb-chat-mine .pb-chat-body { color: #fff; }
.pb-chat-time { font-size: .66rem; color: var(--pb-muted); align-self: flex-end; margin-top: .15rem; }
.pb-chat-mine .pb-chat-time { color: rgba(255,255,255,.8); }
.pb-chat-empty { text-align: center; margin: auto 0; }
.pb-chat-form { display: flex; gap: .4rem; padding-top: .5rem; border-top: 1px solid var(--pb-line); }
.pb-chat-form input { flex: 1; }
.pb-chat-form button { background: var(--pb-accent); color: #fff; border: none; border-radius: 8px; padding: 0 .8rem; cursor: pointer; }