/* tasks.css — Task management + Kanban board UI
   All styles use --kat-* CSS variables from the Katalyst theme.
   Classes: .tk-* for task list/detail, .kb-* for kanban board.
*/

/* ── Page wrapper ────────────────────────────────────────────────────── */
.tk-page {
  padding: 0;
  color: var(--kat-text);
}

/* ── Card ────────────────────────────────────────────────────────────── */
.tk-card {
  background: var(--kat-bg-elevated);
  border: 1px solid var(--kat-border);
  border-radius: 14px;
  overflow: hidden;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.tk-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--kat-text);
  background: var(--kat-bg-hover);
  border: 1px solid var(--kat-border);
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
  text-decoration: none;
}
.tk-btn:hover { background: var(--kat-bg-base); border-color: var(--kat-gold); color: var(--kat-text-strong); }

.tk-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: .82rem;
  font-weight: 500;
  color: #0b0b12;
  background: var(--kat-gold);
  border: 1px solid var(--kat-gold);
  border-radius: 8px;
  cursor: pointer;
  transition: opacity .15s;
  white-space: nowrap;
}
.tk-btn-primary:hover { opacity: .88; }
.tk-btn-primary:disabled { opacity: .55; cursor: not-allowed; }

.tk-btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: .82rem;
  font-weight: 500;
  color: #fca5a5;
  background: rgba(252,165,165,.1);
  border: 1px solid rgba(252,165,165,.3);
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.tk-btn-danger:hover { background: rgba(252,165,165,.18); }

.tk-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--kat-text-muted);
  background: transparent;
  border: 1px solid var(--kat-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: background .15s, color .15s;
}
.tk-icon-btn:hover { background: var(--kat-bg-hover); color: var(--kat-text-strong); }

/* ── Toolbar ─────────────────────────────────────────────────────────── */
.tk-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--kat-border);
}

.tk-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 180px;
  max-width: 320px;
}
.tk-search > i {
  position: absolute;
  left: 10px;
  color: var(--kat-text-muted);
  pointer-events: none;
}
.tk-search > input {
  padding-left: 32px;
  width: 100%;
}

.tk-input {
  background: var(--kat-bg-base);
  border: 1px solid var(--kat-border);
  border-radius: 8px;
  color: var(--kat-text);
  font-size: .82rem;
  padding: 7px 10px;
  outline: none;
  transition: border-color .15s;
}
.tk-input:focus { border-color: var(--kat-gold); }
.tk-input::placeholder { color: var(--kat-text-muted); }

.tk-select {
  background: var(--kat-bg-base);
  border: 1px solid var(--kat-border);
  border-radius: 8px;
  color: var(--kat-text);
  font-size: .82rem;
  padding: 7px 10px;
  outline: none;
  cursor: pointer;
  transition: border-color .15s;
  appearance: auto;
}
.tk-select:focus { border-color: var(--kat-gold); }

/* ── Bulk action bar ─────────────────────────────────────────────────── */
.tk-bulkbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(214,179,127,.07);
  border-bottom: 1px solid var(--kat-border);
}
.tk-bulkbar__count {
  font-size: .82rem;
  font-weight: 600;
  color: var(--kat-gold);
  margin-right: 4px;
}

/* ── Columns / preset dropdowns ──────────────────────────────────────── */
.tk-cols-wrap,
.tk-presets-wrap {
  position: relative;
}

/* ── Mobile filter button / count badge ──────────────────────────────── */
@media (min-width: 768px) {
  .tk-mobile-filter-btn { display: none !important; }
}
.tk-mobile-filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  background: var(--kat-gold);
  color: #0b0b12;
  border-radius: 9px;
  font-size: .7rem;
  font-weight: 700;
}

/* ── Mobile filter bottom sheet ──────────────────────────────────────── */
.tk-filter-sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 1040;
  backdrop-filter: blur(2px);
}
.tk-filter-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  background: var(--kat-bg-elevated);
  border-radius: 18px 18px 0 0;
  border-top: 1px solid var(--kat-border);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  transform: translateY(0);
  transition: transform .25s ease;
}
.tk-filter-sheet[hidden] { display: none; }
.tk-filter-sheet__handle {
  width: 40px;
  height: 4px;
  background: var(--kat-border);
  border-radius: 2px;
  margin: 10px auto 4px;
  flex-shrink: 0;
}
.tk-filter-sheet__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  border-bottom: 1px solid var(--kat-border);
  flex-shrink: 0;
}
.tk-filter-sheet__body {
  overflow-y: auto;
  flex: 1;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tk-filter-sheet__foot {
  display: flex;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--kat-border);
  flex-shrink: 0;
}

/* ── Empty state ─────────────────────────────────────────────────────── */
.tk-empty__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--kat-bg-hover);
  border: 1px solid var(--kat-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--kat-text-muted);
  margin: 0 auto 14px;
}
.tk-empty__title {
  color: var(--kat-text-strong);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 6px;
}
.tk-empty__msg {
  color: var(--kat-text-muted);
  font-size: .84rem;
  margin: 0 0 16px;
}

/* ── Task table rows (generated by tasks-list.js) ────────────────────── */
.tk-table {
  width: 100%;
  border-collapse: collapse;
}
.tk-table-head th {
  padding: 8px 12px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--kat-text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--kat-border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
.tk-table-head th:hover { color: var(--kat-text-strong); }
.tk-row {
  border-bottom: 1px solid var(--kat-border);
  transition: background .12s;
}
.tk-row:hover { background: var(--kat-bg-hover); }
.tk-cell {
  padding: 10px 12px;
  font-size: .83rem;
  color: var(--kat-text);
  vertical-align: middle;
}
.tk-row-title {
  font-weight: 500;
  color: var(--kat-text-strong);
  cursor: pointer;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tk-row-title:hover { color: var(--kat-gold); }

/* ── Status / priority badges ────────────────────────────────────────── */
.tk-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .73rem;
  font-weight: 600;
  white-space: nowrap;
}
.tk-status--backlog  { background: rgba(100,116,139,.15); color: #94a3b8; }
.tk-status--todo     { background: rgba(99,102,241,.15);  color: #818cf8; }
.tk-status--in_progress { background: rgba(59,130,246,.15); color: #60a5fa; }
.tk-status--in_review   { background: rgba(245,158,11,.15); color: #fbbf24; }
.tk-status--done     { background: rgba(34,197,94,.15);  color: #4ade80; }
.tk-status--archived { background: rgba(100,116,139,.1); color: #64748b; }

.tk-priority {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .73rem;
  font-weight: 600;
  white-space: nowrap;
}
.tk-priority--urgent { color: #f87171; }
.tk-priority--high   { color: #fb923c; }
.tk-priority--medium { color: #fbbf24; }
.tk-priority--low    { color: #94a3b8; }

.tk-label-chip {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 12px;
  font-size: .7rem;
  font-weight: 600;
  margin: 1px;
}
.tk-assignee-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--kat-bg-hover);
  border: 1px solid var(--kat-border);
  font-size: .65rem;
  font-weight: 700;
  color: var(--kat-gold);
  text-transform: uppercase;
}

/* ── Kanban Board ─────────────────────────────────────────────────────── */
.kb-board {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 20px;
  align-items: flex-start;
  min-height: 400px;
}
.kb-board::-webkit-scrollbar { height: 6px; }
.kb-board::-webkit-scrollbar-thumb { background: var(--kat-border); border-radius: 3px; }

.kb-col {
  flex: 0 0 280px;
  background: var(--kat-bg-elevated);
  border: 1px solid var(--kat-border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 200px);
}
.kb-col__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--kat-border);
  flex-shrink: 0;
}
.kb-col__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--kat-text-strong);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.kb-col__count {
  font-size: .72rem;
  font-weight: 600;
  color: var(--kat-text-muted);
  background: var(--kat-bg-hover);
  border-radius: 10px;
  padding: 2px 8px;
}
.kb-col__body {
  overflow-y: auto;
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 80px;
}
.kb-col__body::-webkit-scrollbar { width: 4px; }
.kb-col__body::-webkit-scrollbar-thumb { background: var(--kat-border); border-radius: 2px; }

.kb-card {
  background: var(--kat-bg-base);
  border: 1px solid var(--kat-border);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .1s;
  user-select: none;
}
.kb-card:hover {
  border-color: var(--kat-gold);
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
  transform: translateY(-1px);
}
.kb-card.sortable-ghost {
  opacity: .4;
}
.kb-card.sortable-drag {
  opacity: .9;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.kb-card__title {
  font-size: .83rem;
  font-weight: 500;
  color: var(--kat-text-strong);
  margin: 0 0 6px;
  line-height: 1.4;
}
.kb-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: .72rem;
  color: var(--kat-text-muted);
}
.kb-card__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 5px;
}

/* ── Pagination ───────────────────────────────────────────────────────── */
.tk-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--kat-border);
  font-size: .8rem;
  color: var(--kat-text-muted);
}
.tk-pager__btns {
  display: flex;
  gap: 4px;
}
.tk-pager__btn {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--kat-border);
  background: var(--kat-bg-hover);
  color: var(--kat-text);
  font-size: .78rem;
  cursor: pointer;
  transition: background .12s;
}
.tk-pager__btn:hover { background: var(--kat-bg-base); border-color: var(--kat-gold); }
.tk-pager__btn--active { background: var(--kat-gold); color: #0b0b12; border-color: var(--kat-gold); font-weight: 600; }
.tk-pager__btn:disabled { opacity: .4; cursor: default; }

/* ── Task detail inline content (task-detail.js fills the modal) ──────── */
.tk-detail-wrap {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 0;
  min-height: 400px;
}
@media (max-width: 768px) {
  .tk-detail-wrap { grid-template-columns: 1fr; }
}
.tk-detail-main {
  padding: 20px 24px;
  border-right: 1px solid var(--kat-border);
  overflow-y: auto;
}
.tk-detail-sidebar {
  padding: 20px 18px;
  overflow-y: auto;
}
.tk-detail-title-input {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--kat-text-strong);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  outline: none;
  width: 100%;
  padding: 4px 0;
  margin-bottom: 12px;
  transition: border-color .15s;
}
.tk-detail-title-input:focus { border-bottom-color: var(--kat-gold); }

.tk-detail-section { margin-bottom: 20px; }
.tk-detail-section__title {
  font-size: .72rem;
  font-weight: 700;
  color: var(--kat-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 8px;
}

.tk-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--kat-border);
  font-size: .82rem;
}
.tk-meta-row:last-child { border-bottom: none; }
.tk-meta-row__label {
  width: 90px;
  flex-shrink: 0;
  color: var(--kat-text-muted);
  font-size: .78rem;
}

/* ── Checklist ────────────────────────────────────────────────────────── */
.tk-checklist-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--kat-border);
  font-size: .83rem;
}
.tk-checklist-item:last-child { border-bottom: none; }
.tk-checklist-item--done .tk-checklist-item__text {
  text-decoration: line-through;
  color: var(--kat-text-muted);
}
.tk-checklist-progress {
  height: 4px;
  background: var(--kat-bg-hover);
  border-radius: 2px;
  overflow: hidden;
  margin: 6px 0 10px;
}
.tk-checklist-progress__fill {
  height: 100%;
  background: var(--kat-gold);
  border-radius: 2px;
  transition: width .3s;
}

/* ── Comment thread ───────────────────────────────────────────────────── */
.tk-comment {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--kat-border);
}
.tk-comment:last-child { border-bottom: none; }
.tk-comment__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--kat-bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  color: var(--kat-gold);
  flex-shrink: 0;
  text-transform: uppercase;
}
.tk-comment__body { flex: 1; min-width: 0; }
.tk-comment__meta { font-size: .72rem; color: var(--kat-text-muted); margin-bottom: 3px; }
.tk-comment__text { font-size: .83rem; color: var(--kat-text); line-height: 1.5; }

/* ── Mention input dropdown ───────────────────────────────────────────── */
.tk-mention-dropdown {
  position: absolute;
  z-index: 9999;
  background: var(--kat-bg-elevated);
  border: 1px solid var(--kat-border);
  border-radius: 10px;
  padding: 4px;
  min-width: 200px;
  max-height: 220px;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.tk-mention-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .82rem;
  color: var(--kat-text);
}
.tk-mention-item:hover,
.tk-mention-item.active { background: var(--kat-bg-hover); }

/* ── Toast notification (task-toasts.js) ─────────────────────────────── */
.tk-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9990;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
}
.tk-toast {
  background: var(--kat-bg-elevated);
  border: 1px solid var(--kat-border);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .83rem;
  color: var(--kat-text);
  box-shadow: 0 4px 20px rgba(0,0,0,.35);
  pointer-events: auto;
  max-width: 320px;
  animation: tkToastIn .2s ease;
}
.tk-toast--success { border-color: rgba(74,222,128,.3); }
.tk-toast--error   { border-color: rgba(248,113,113,.3); }
.tk-toast--warning { border-color: rgba(251,191,36,.3); }
.tk-toast__icon { font-size: 1.1rem; }
.tk-toast--success .tk-toast__icon { color: #4ade80; }
.tk-toast--error   .tk-toast__icon { color: #f87171; }
.tk-toast--warning .tk-toast__icon { color: #fbbf24; }
.tk-toast--info    .tk-toast__icon { color: #60a5fa; }
@keyframes tkToastIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}