/* ======================================================================
   Pit o Cuixa — Filter Bar Component
   
   BEM block: .filter-bar
   Sticky category tabs for the menu page.
   DS-002: Consistent BEM naming
   ====================================================================== */

.filter-bar {
  position: sticky;
  top: 56px;
  z-index: calc(var(--z-header) - 10);
  background-color: var(--color-surface-container-lowest);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.filter-bar__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

/* ── Top Row (Search + Channel Switcher) ─────────────────────── */
.filter-bar__top {
  display: flex;
  align-items: center;
  gap: var(--space-xs, 8px);
}

.filter-bar__search {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
}

.filter-bar__search-input {
  width: 100%;
  height: 54px;
  padding: 0 var(--space-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  color: var(--color-on-surface);
  background-color: var(--color-surface-container-low);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-bar__search-input::placeholder {
  color: var(--color-text-muted);
}

.filter-bar__search-input:focus {
  border-color: var(--color-on-surface);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.08);
}

/* Native clear button (×) — match parent border radius */
.filter-bar__search-input::-webkit-search-decoration,
.filter-bar__search-input::-webkit-search-cancel-button,
.filter-bar__search-input::-webkit-search-results-button,
.filter-bar__search-input::-webkit-search-results-decoration {
  -webkit-appearance: none;
}

.filter-bar__search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-text-muted);
  cursor: pointer;
  /* Use a mask for the × icon */
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* ── Tabs Row ───────────────────────────────────────────────── */
.filter-bar__tabs {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.filter-bar__tabs[hidden] {
  display: none !important;
}

.filter-bar__tabs::-webkit-scrollbar {
  display: none;
}

/* PC-007: Mobile — horizontal scroll snap for category pills */
@media (max-width: 639px) {
  .filter-bar__tabs {
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
  }

  .filter-bar__tab {
    scroll-snap-align: start;
  }
}

/* ── No-Results Message ─────────────────────────────────────── */
#search-no-results {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}

/* DS-003: Mobile-first — compact tabs */
.filter-bar__tab {
  flex-shrink: 0;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  background-color: var(--color-surface-container-low);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.filter-bar__tab:hover {
  color: var(--color-on-surface);
  background-color: var(--color-surface-container-low);
  border-color: var(--color-border);
}

.filter-bar__tab--active,
.filter-bar__tab[aria-pressed="true"] {
  color: var(--color-on-surface);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.filter-bar__tab:focus-visible {
  outline: 2px solid var(--color-on-surface);
  outline-offset: 2px;
}

/* PC-005: search stays full-width stacked above tabs at all widths */
@media (min-width: 640px) {
  .filter-bar__inner {
    gap: var(--space-md);
  }

  .filter-bar__tabs {
    justify-content: center;
    gap: var(--space-sm);
  }

  .filter-bar__tab {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
  }
}