.catalog-page { min-width: 0; }
.catalog { margin-top: 48px; scroll-margin-top: 12px; }
.catalog [hidden] { display: none !important; }
.catalog-controls {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: 0;
  padding: 16px 18px 10px;
  border: 1px solid #d4dfed;
  border-radius: 16px;
  background: #f8fbff;
  box-shadow: 0 8px 24px rgb(25 50 82 / 7%);
}
.catalog-fields { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 14px; }
.catalog-fields label { min-width: 0; }
.catalog-fields input,
.catalog-fields select {
  width: 100%;
  min-width: 0;
  height: 46px;
  padding: 10px 13px;
  border: 1px solid #b9c9dd;
  border-radius: 9px;
  background: #fff;
  color: #17253a;
  font: inherit;
  font-size: 1rem;
}
.catalog-fields input::placeholder { color: #5c6e83; opacity: 1; }
.catalog-feedback { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 7px; }
.catalog-count { margin: 0; color: #52647b; font-size: .87rem; }
.catalog-clear { border: 0; padding: 6px 2px; background: none; color: #1555b7; font: inherit; font-size: .87rem; font-weight: 650; cursor: pointer; }
.catalog-clear:disabled { color: #66768b; cursor: default; }
.catalog :is(input, select, button):focus-visible { outline: 3px solid #1a5fd0; outline-offset: 3px; }
.catalog .topic-list { padding-top: 28px; }
.catalog-empty { margin: 28px 0 0; padding: 28px; border: 1px dashed #bdcde0; border-radius: 14px; text-align: center; }
.catalog-empty h2 { margin: 0 0 6px; font-size: 1.25rem; }
.catalog-empty p { margin: 0; color: #52647b; }
.catalog-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 640px) {
  .catalog { margin-top: 30px; }
  .catalog-controls { padding: 12px 12px 6px; border-radius: 12px; }
  .catalog-fields { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .catalog-clear { min-height: 36px; }
  .catalog .topic-list { padding-top: 22px; }
}