.admin-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(250px, 1fr));
  gap: 16px;
  align-items: start;
}
.board-column {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #edf2f8;
  transition: border-color .18s, box-shadow .18s;
}
.board-column > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 17px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .78);
  font-weight: 850;
}
.board-column > header::before {
  content: '';
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 9px;
  background: var(--blue);
}
.board-column > header span { flex: 1; }
.board-column > header b {
  min-width: 28px;
  padding: 4px 8px;
  border-radius: 999px;
  background: white;
  color: var(--muted);
  text-align: center;
  font-size: .72rem;
}
.board-progress > header::before { background: var(--orange); }
.board-closed > header::before { background: #25a47f; }
.board-list {
  min-height: 390px;
  max-height: calc(100vh - 285px);
  overflow-y: auto;
  padding: 12px;
  scrollbar-gutter: stable;
}
.board-card {
  margin-bottom: 10px;
  padding: 15px;
  border: 1px solid #dce3ed;
  border-radius: 15px;
  background: white;
  box-shadow: 0 2px 8px rgba(20, 43, 85, .05);
  cursor: grab;
  transition: transform .16s, box-shadow .16s, opacity .16s;
}
.board-card:hover { transform: translateY(-2px); box-shadow: 0 9px 24px rgba(20, 43, 85, .1); }
.board-card:active { cursor: grabbing; }
.board-card.dragging { opacity: .45; transform: rotate(1deg); }
.board-column.drag-over { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(71, 121, 246, .12); }
.board-card-number { color: var(--blue); font-size: .7rem; font-weight: 850; }
.board-card h3 { margin: 7px 0 11px; font-size: .92rem; line-height: 1.35; }
.board-card-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.board-card-meta span { padding: 5px 7px; border-radius: 8px; background: #f1f4f8; color: var(--muted); font-size: .66rem; }
.board-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; padding-top: 11px; border-top: 1px solid #edf0f5; color: var(--muted); font-size: .68rem; }
.board-empty { padding: 42px 12px; color: #8994a6; text-align: center; font-size: .78rem; }
@media (max-width: 1050px) {
  .admin-board { grid-template-columns: repeat(3, minmax(280px, 1fr)); overflow-x: auto; padding-bottom: 8px; }
  .board-list { min-height: 340px; max-height: 560px; }
}
@media (max-width: 700px) {
  .admin-board { margin-right: -14px; grid-template-columns: repeat(3, 82vw); scroll-snap-type: x mandatory; }
  .board-column { scroll-snap-align: start; }
  .board-list { min-height: 320px; max-height: 58vh; }
}