body { background: #f4f5f7; }

header { border-bottom: 1px solid #ddd; background: #fff; }

.kanban-board {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  overflow-x: auto;
  padding-bottom: 1rem;
}

.kanban-column {
  background: #ebecf0;
  border-radius: 8px;
  padding: 0.75rem;
  min-width: 260px;
  flex-shrink: 0;
}

.kanban-column h3 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-list { min-height: 4px; }

.card {
  background: #fff;
  border-radius: 4px;
  padding: 0.6rem 0.75rem;
  margin-bottom: 0.5rem;
  box-shadow: 0 1px 2px rgba(0,0,0,.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.card.selected { outline: 2px solid var(--pico-primary); }

.card-title { flex: 1; font-size: 0.9rem; }

.card-delete {
  background: none;
  border: none;
  color: #999;
  cursor: pointer;
  padding: 0 0 0 0.5rem;
  font-size: 0.8rem;
  line-height: 1;
}
.card-delete:hover { color: #c00; }

.add-card-row {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.add-card-row input {
  flex: 1;
  font-size: 0.85rem;
  padding: 0.3rem 0.5rem;
  margin: 0;
}
.add-card-row button {
  padding: 0.3rem 0.7rem;
  font-size: 1rem;
}

.error { color: var(--pico-del-color); }