.retention-page [hidden] {
  display: none !important;
}
.retention-page .retention-shell {
  width: min(100%, 1040px);
}
.retention-page .retention-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.retention-page h1 {
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0;
}
.retention-page .retention-summary {
  border-left: 4px solid #288798;
  padding: 14px 18px;
  background: rgba(40, 135, 152, 0.09);
  line-height: 1.8;
}
.retention-page .retention-summary p {
  margin: 0;
}
.retention-page .retention-categories {
  display: grid;
  gap: 18px;
}
.retention-page .retention-card {
  padding: 24px;
  border: 1px solid var(--ui-border, #d5dddd);
  border-radius: 12px;
  background: var(--ui-surface, #fff);
  color: var(--ui-text, #192f36);
  overflow-wrap: anywhere;
}
.retention-page .retention-card header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.retention-page .retention-card h2 {
  margin: 0;
  font-size: 1.15rem;
}
.retention-page .retention-state {
  font-size: 0.86rem;
  border-radius: 6px;
  background: rgba(40, 135, 152, 0.1);
  padding: 5px 9px;
}
.retention-page .retention-details {
  display: grid;
  grid-template-columns: 6em minmax(0, 1fr);
  gap: 8px 14px;
  margin: 0;
  line-height: 1.75;
}
.retention-page dt {
  color: var(--bbs-shell-muted, #52656a);
}
.retention-page dd {
  margin: 0;
}
.retention-page .retention-counts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px 12px;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ui-border, #d5dddd);
}
.retention-page .retention-counts dt {
  grid-row: 1;
  font-size: 0.86rem;
}
.retention-page .retention-counts dd {
  grid-row: 2;
  font-size: 1.45rem;
  font-weight: 700;
}
.retention-page .retention-help,
.retention-page .retention-note {
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 16px 0 0;
  color: var(--bbs-shell-muted, #52656a);
}
.retention-page .retention-note {
  padding: 12px;
  border-radius: 6px;
  background: rgba(40, 135, 152, 0.06);
}
@media (max-width: 600px) {
  .retention-page .retention-card {
    padding: 16px;
  }
  .retention-page .retention-details {
    grid-template-columns: 1fr;
    gap: 3px;
  }
  .retention-page .retention-details dd {
    margin-bottom: 10px;
  }
  .retention-page .retention-counts dd {
    font-size: 1.1rem;
  }
}