/* ==========================================================================
   Backlog & Sprint Planning Styles (Jira Scrum Style)
   ========================================================================== */

.backlog-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.backlog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.sprint-card {
  background: var(--bg-sidebar);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.sprint-card.active-sprint {
  border-color: var(--brand-primary-border);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.1);
}

.sprint-header {
  padding: 14px 18px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.sprint-info-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sprint-toggle-icon {
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
}

.sprint-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sprint-dates {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sprint-points-summary {
  display: flex;
  align-items: center;
  gap: 6px;
}

.point-badge {
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
}

.point-badge.todo { background: var(--status-todo-bg); color: var(--status-todo); }
.point-badge.inprogress { background: var(--status-in-progress-bg); color: var(--status-in-progress); }
.point-badge.done { background: var(--status-done-bg); color: var(--status-done); }

.sprint-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sprint-body {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 50px;
}

.sprint-body.empty-state {
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border: 1px dashed var(--border-subtle);
  margin: 8px;
  border-radius: var(--radius-md);
}

/* Backlog Issue Row */
.backlog-issue-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  gap: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.backlog-issue-row:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-default);
  transform: translateX(2px);
}

.backlog-issue-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.backlog-issue-key {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 600;
  width: 75px;
  flex-shrink: 0;
}

.backlog-issue-title {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.backlog-issue-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.quick-add-issue-row {
  padding: 8px 12px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.quick-add-input {
  width: 100%;
  background: transparent;
  border: none;
  font-size: 0.85rem;
  color: var(--text-primary);
  outline: none;
}