/* board tab - kanban task manager with drag-and-drop */

/* board toolbar */
.board-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  flex-wrap: wrap;
}

.board-search {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.board-filters {
  display: flex;
  align-items: center;
  gap: 8px;
}

.board-filters .select {
  width: auto;
  min-width: 120px;
  font-size: 12px;
  padding: 8px 30px 8px 10px;
}

.board-toolbar-spacer {
  flex: 1;
}

/* add column button (inline with columns) */
.board-add-column-btn {
  width: 280px;
  flex: 0 0 280px;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.board-add-column-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.board-add-column-btn svg {
  width: 20px;
  height: 20px;
}

/* board container */
.board-container {
  display: flex;
  gap: 16px;
  padding: 0 4px 24px;
  margin-top: 20px;
  overflow-x: hidden;
  min-height: calc(100vh - 220px);
  align-items: flex-start;
  flex-wrap: wrap;
}

/* column */
.board-column {
  width: 280px;
  flex: 0 0 280px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 220px);
  padding: 0;
  overflow: visible;
}

.board-column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.board-column-header h3 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.board-column-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.board-column-actions {
  display: flex;
  gap: 4px;
}

.board-column-actions button {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.board-column-actions button:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.board-column-actions button svg {
  width: 14px;
  height: 14px;
}

/* quick add input */
.board-quick-add {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

.board-quick-add input {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
  outline: none;
  transition: all var(--transition-fast);
}

.board-quick-add input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.board-quick-add input::placeholder {
  color: var(--text-muted);
}

[data-theme="light"] .board-quick-add input {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .board-quick-add input:focus {
  background: white;
  border-color: var(--accent);
}

[data-theme="light"] .board-quick-add input::placeholder {
  color: rgba(0, 0, 0, 0.35);
}

/* card list */
.board-card-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
  min-height: 60px;
}

/* individual card */
.board-card {
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  cursor: grab;
  transition: all var(--transition-fast);
  position: relative;
}

.board-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.board-card:active {
  cursor: grabbing;
}

.board-card.sortable-ghost {
  opacity: 0.4;
  border: 2px dashed var(--accent);
  background: var(--accent-dim);
}

.board-card.sortable-drag {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

[data-theme="light"] .board-card {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .board-card:hover {
  border-color: rgba(0, 0, 0, 0.18);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* card priority indicator */
.board-card-priority {
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.board-card-priority.priority-low {
  background: var(--success);
  opacity: 0.5;
}

.board-card-priority.priority-medium {
  background: var(--warning);
  opacity: 0.7;
}

.board-card-priority.priority-high {
  background: var(--danger);
  opacity: 0.8;
}

.board-card-priority.priority-critical {
  background: var(--danger);
  opacity: 1;
}

/* card title */
.board-card-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
  padding-left: 8px;
  line-height: 1.4;
}

/* card labels */
.board-card-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding-left: 8px;
  margin-bottom: 8px;
}

.board-card-label {
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  border-radius: 8px;
  text-transform: lowercase;
}

.board-card-label.label-building {
  background: rgba(59, 130, 246, 0.15);
  color: var(--info);
}

.board-card-label.label-audio {
  background: rgba(168, 85, 247, 0.15);
  color: #a855f7;
}

.board-card-label.label-ui {
  background: rgba(236, 72, 153, 0.15);
  color: #ec4899;
}

.board-card-label.label-bug {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.board-card-label.label-feature {
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent);
}

.board-card-label.label-default {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

/* card footer */
.board-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 8px;
}

.board-card-assignee {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.board-card-assignee svg {
  width: 12px;
  height: 12px;
}

.board-card-due {
  font-size: 10px;
  color: var(--text-muted);
}

.board-card-due.overdue {
  color: var(--danger);
}

/* add column button */
.board-add-column {
  width: 280px;
  flex: 0 0 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
  font-family: inherit;
  height: 56px;
}

.board-add-column:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.board-add-column svg {
  width: 16px;
  height: 16px;
}

/* card modal */
.card-modal .modal {
  max-width: 560px;
}

.card-modal .modal h3 {
  padding: 20px 24px 0;
  font-size: 16px;
  font-weight: 600;
}

.card-modal .modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card-modal .input-row {
  display: flex;
  gap: 12px;
}

.card-modal .input-row .input-group {
  flex: 1;
}

.card-modal .input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-modal .input-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.card-modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 8px;
}

/* label chips in modal */
.card-modal-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.card-modal-labels .label-chip {
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.card-modal-labels .label-chip.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.card-modal-labels .label-chip:hover:not(.selected) {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

/* board empty state */
.board-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  color: var(--text-muted);
  text-align: center;
  width: 100%;
}

.board-empty svg {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.board-empty p {
  font-size: 14px;
  max-width: 320px;
  margin-bottom: 16px;
}

/* disable glass-panel pseudo-elements on board columns to prevent visible square artifacts */
.board-column::before,
.board-column::after {
  display: none;
}

/* light theme board overrides */
[data-theme="light"] .board-column {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
}
[data-theme="light"] .board-column-header { border-bottom: 1px solid rgba(0, 0, 0, 0.08); }
[data-theme="light"] .board-column-count { background: rgba(0, 0, 0, 0.06); color: var(--text-secondary); }
[data-theme="light"] .board-add-column { border-color: rgba(0, 0, 0, 0.12); background: rgba(255, 255, 255, 0.5); }
[data-theme="light"] .board-add-column:hover { background: var(--accent-dim); border-color: var(--accent); }

/* board tab should not be constrained by max-width */
#tab-board.tab-content {
  max-width: none;
}

/* responsive */
@media (max-width: 700px) {
  .board-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .board-search {
    max-width: 100%;
  }

  .board-filters {
    flex-wrap: wrap;
  }

  .board-toolbar-spacer {
    display: none;
  }

  .board-column {
    min-width: 260px;
  }
}