.navigation-toolbar {
  position: sticky;
  top: var(--rtp-header-height, 0px);
  z-index: 2400;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: .35rem;
  min-width: 0;
  min-height: 2.9rem;
  padding: .35rem max(.5rem, calc((100vw - 72rem) / 2));
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  backdrop-filter: blur(8px);
}
.navigation-toolbar[hidden] { display: none !important; }
.navigation-toolbar__button[hidden] { display:none !important; }
.navigation-toolbar__button,
.navigation-toolbar__category,
.navigation-toolbar__scroll-hint {
  flex: 0 0 auto;
  min-height: 2.1rem;
  padding: .35rem .65rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  white-space: nowrap;
}
.navigation-toolbar__button { width: 2.25rem; padding-inline: 0; font-size: 1.05rem; }
.navigation-toolbar__scroll-hint { width: 1.75rem; padding-inline: 0; font-size: 1.25rem; line-height: 1; }
.navigation-toolbar__button:hover,
.navigation-toolbar__category:hover,
.navigation-toolbar__scroll-hint:hover,
.navigation-toolbar__button:focus-visible,
.navigation-toolbar__category:focus-visible,
.navigation-toolbar__scroll-hint:focus-visible { background: var(--color-muted); }
.navigation-toolbar__categories {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: nowrap;
  min-width: 0;
  gap: .35rem;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
  scroll-snap-type: x proximity;
}
.navigation-toolbar__categories::-webkit-scrollbar { display: none; }
.navigation-toolbar__category { scroll-snap-align: start; }
.navigation-toolbar__search {
  display: flex;
  flex-wrap: wrap;
  flex: 0 1 28rem;
  max-width: min(28rem, calc(100vw - 5.6rem));
  min-width: 0;
  gap: .35rem;
}
.navigation-toolbar__search[hidden] { display: none !important; }
.navigation-toolbar__search input {
  width: auto;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: .45rem .8rem;
  font: inherit;
}
.navigation-toolbar__search-action {
  flex:0 0 2.1rem;
  width:2.1rem;
  min-height:2.1rem;
  display:grid;
  place-items:center;
  padding:.35rem;
  border:1px solid var(--color-border);
  border-radius:999px;
  background:var(--color-surface);
  color:var(--color-text);
  cursor:pointer;
}
.navigation-toolbar__search-action svg {
  width:1.15rem;
  height:1.15rem;
  fill:none;
  stroke:currentColor;
  stroke-width:1.9;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.navigation-toolbar__search-action:disabled {
  opacity:.38;
  cursor:default;
}
.navigation-toolbar__search-status:not([hidden]) {
  flex: 0 0 100%;
  min-width: 0;
  padding:.35rem .65rem;
  border:1px solid var(--color-border);
  border-radius:.4rem;
  background:var(--color-surface);
  color:var(--color-text);
  font-size:.8rem;
  line-height:1.35;
  white-space:normal;
}
.navigation-toolbar__search-status[hidden] { display:none !important; }
.search-no-result-status[data-search-state="no-result"] {
  border-color:color-mix(in srgb, var(--color-primary) 55%, var(--color-border));
  font-weight:600;
}
@media (max-width:700px) {
  .navigation-toolbar { padding-inline: .4rem; }
  .navigation-toolbar__category { padding-inline: .55rem; }
}

/* Sprint 2.2 – einheitliche SVG-Symbolsprache und Filterzähler */
.navigation-toolbar__button { position:relative; display:inline-grid; place-items:center; }
.navigation-toolbar__button svg { width:1.2rem; height:1.2rem; fill:none; stroke:currentColor; stroke-width:1.9; stroke-linecap:round; stroke-linejoin:round; }
.navigation-toolbar__filter svg { fill:none; }
.navigation-toolbar__badge { position:absolute; top:-.28rem; right:-.28rem; min-width:1.15rem; height:1.15rem; padding:0 .22rem; display:grid; place-items:center; border:2px solid var(--color-surface); border-radius:999px; background:var(--color-accent, currentColor); color:var(--color-surface); font-size:.68rem; font-weight:700; line-height:1; }
.navigation-toolbar__badge[hidden] { display:none !important; }


/* Sprint 2.4 – Filterzahl sicher innerhalb des Trichterbuttons */
.navigation-toolbar__filter { width:auto; min-width:2.25rem; padding-inline:.48rem; grid-auto-flow:column; gap:.28rem; overflow:visible; }
.navigation-toolbar__badge { position:static; min-width:1.05rem; height:1.05rem; padding:0 .2rem; border:0; font-size:.66rem; }


/* Sprint 2.5 – Suche beginnt nach dem dauerhaft sichtbaren Filterbutton */
.navigation-toolbar__search { order:3; }
.navigation-toolbar__categories,
.navigation-toolbar__scroll-hint { order:4; }
.navigation-toolbar__filter { order:1; }
.navigation-toolbar__button[data-toolbar-search-open] { order:2; }
.navigation-toolbar__search input { flex:1 1 10rem; }
.navigation-toolbar__search-open { width:auto; min-width:2.25rem; padding-inline:.48rem; grid-auto-flow:column; gap:.28rem; overflow:visible; }
.navigation-toolbar__badge {
  background:var(--color-primary, var(--color-accent, #7b2431));
  color:#fff;
  min-width:1.15rem;
  height:1.15rem;
  line-height:1;
  overflow:visible;
}