.catalog-navigation {
  position: fixed;
  z-index: 20;
  top: 50%;
  left: 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: rgba(8, 11, 11, .82);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  transform: translateY(-50%);
}

.catalog-navigation a {
  display: flex;
  min-width: 112px;
  padding: 9px 10px;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color .2s ease, background-color .2s ease;
}

.catalog-navigation a span { color: #64716e; font-size: .55rem; }
.catalog-navigation a:hover { color: var(--white); }
.catalog-navigation a[aria-current="location"] { color: var(--black); background: var(--teal-bright); }
.catalog-navigation a[aria-current="location"] span { color: rgba(8, 11, 11, .65); }
.catalog-navigation a:focus-visible { outline: 2px solid var(--yellow); outline-offset: 2px; }

.scroll-progress {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, .08);
  pointer-events: none;
}

.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
}

.product-section { scroll-margin-top: 72px; }

@media (max-width: 1100px) and (min-width: 851px) {
  .catalog-navigation { left: 10px; }
  .catalog-navigation a { min-width: 0; }
  .catalog-navigation a:not([aria-current="location"]) { width: 38px; overflow: hidden; }
}

@media (max-width: 1750px) and (min-width: 851px) {
  main,
  footer { margin-left: 140px; }
  .site-header {
    left: calc(50% + 70px);
    width: min(calc(100% - 204px), 1320px);
  }
}

@media (max-width: 850px) {
  .catalog-navigation {
    top: auto;
    bottom: calc(12px + env(safe-area-inset-bottom));
    left: 50%;
    width: calc(100% - 24px);
    max-width: 560px;
    flex-direction: row;
    gap: 2px;
    overflow-x: auto;
    transform: translateX(-50%);
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    scrollbar-width: none;
  }
  .catalog-navigation::-webkit-scrollbar { display: none; }
  .catalog-navigation a { min-width: max-content; flex: 1 0 auto; justify-content: center; padding: 10px 12px; }
  .product-section { scroll-margin-top: 0; }
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  footer { padding-bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-navigation a { transition: none; }
}