/* Catalog filters — sticky scroll + mobile drawer
   shop_design §5.5 / §5.6 / §43 / ERR-107 */

.catalog-toolbar {
  display: none;
  align-items: end;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}

.catalog-filters-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  min-height: var(--touch);
  padding: 0 var(--sp-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 560;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.catalog-filters-toggle svg {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--color-coral);
}

.catalog-filters-toggle:hover,
.catalog-filters-toggle[aria-expanded="true"] {
  border-color: var(--color-coral-mist);
  background: var(--color-coral-soft);
  color: var(--color-coral-deep);
}

.catalog-toolbar__sort {
  flex: 1;
  min-width: 0;
  max-width: 14rem;
  display: grid;
  gap: var(--sp-2);
}

.catalog-toolbar__sort-label {
  margin: 0;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-muted);
}

.catalog-filters-backdrop {
  display: none;
}

.catalog-filters__mob-head,
.catalog-filters__mob-foot {
  display: none;
}

.catalog-filters {
  position: sticky;
  top: calc(var(--header-h) + var(--safe-t) + var(--sp-4));
  display: flex;
  flex-direction: column;
  max-height: calc(100dvh - var(--header-h) - var(--safe-t) - var(--sp-8));
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, var(--color-surface-soft) 0%, var(--color-surface) 42%),
    var(--color-surface);
  box-shadow: var(--shadow-soft);
  /* visible: інакше Safari кліпає fixed-меню дропдаунів у сайдбарі */
  overflow: visible;
}

.catalog-filters__scroll {
  display: grid;
  gap: var(--sp-6);
  padding: var(--sp-6);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable;
}

.catalog-filters__head {
  display: grid;
  gap: var(--sp-2);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--color-border);
}

.catalog-filters__title {
  margin: 0;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-coral-deep);
}

.catalog-filters__hint {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.catalog-filters .form-field label,
.catalog-filters .form-field__label {
  display: block;
  color: var(--color-ink);
  font-weight: 500;
}

.catalog-filters .form-field input,
.catalog-filters .form-field select {
  border-color: var(--color-border);
  background: #fff;
  border-radius: var(--radius-sm);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.catalog-filters .form-field input:focus,
.catalog-filters .form-field select:focus {
  outline: none;
  border-color: var(--color-coral);
  box-shadow: 0 0 0 3px rgba(212, 120, 92, 0.18);
}

.catalog-filters .check-row {
  padding: var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-coral-soft);
  color: var(--color-coral-deep);
}

.catalog-filters .check-row input {
  accent-color: var(--color-coral);
}

.catalog-filters__block {
  display: grid;
  gap: var(--sp-3);
}

.catalog-filters__block .check-row.is-filter-collapsed,
.catalog-filters__block .catalog-cats > a.is-filter-collapsed {
  display: none;
}

.catalog-filters__more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  width: 100%;
  min-height: var(--touch);
  margin: 0;
  padding: 0 var(--sp-3);
  border: 1px solid var(--color-coral);
  border-radius: var(--radius-sm);
  background: var(--color-coral);
  color: #fff;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: center;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.catalog-filters__more::after {
  content: '';
  width: 0.45rem;
  height: 0.45rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-0.1rem) rotate(45deg);
  transition: transform var(--dur-fast) var(--ease-out);
}

.catalog-filters__block.is-filter-expanded > .catalog-filters__more::after {
  transform: translateY(0.1rem) rotate(225deg);
}

.catalog-filters__more:hover {
  background: var(--color-coral-hover);
  border-color: var(--color-coral-hover);
  box-shadow: var(--btn-shadow);
}

.catalog-filters__more:active {
  transform: scale(0.98);
}

.catalog-filters__more[hidden] {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .catalog-filters__more,
  .catalog-filters__more::after {
    transition: none;
  }
}

.catalog-cats {
  display: grid;
  gap: var(--sp-1);
}

.catalog-cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2.6rem;
  padding: 0 var(--sp-3);
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.catalog-cats a:hover {
  color: var(--color-coral-deep);
  background: var(--color-coral-soft);
  border-color: var(--color-coral-mist);
}

.catalog-cats a.is-active {
  color: #fff;
  background: var(--color-coral);
  border-color: var(--color-coral);
}

.catalog-cats a.is-active:hover {
  color: #fff;
  background: var(--color-coral-hover);
  border-color: var(--color-coral-hover);
}

#filter-form {
  display: grid;
  gap: var(--sp-4);
}

@media (min-width: 900px) {
  .catalog-filters-layer {
    display: contents;
  }
}

@media (max-width: 899px) {
  .catalog-toolbar {
    display: flex;
  }

  .catalog-filters__sort-field {
    display: none;
  }

  .catalog-filters__head {
    display: none;
  }

  .catalog-filters-layer {
    position: fixed;
    inset: 0;
    z-index: var(--z-drawer);
    pointer-events: none;
  }

  .catalog-filters-layer.is-open {
    pointer-events: auto;
  }

  .catalog-filters {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    /* Залишаємо клікабельну смугу backdrop зліва (~3.25rem) */
    width: min(22rem, calc(100% - 3.25rem));
    max-height: none;
    height: 100dvh;
    padding-top: var(--safe-t);
    padding-bottom: var(--safe-b);
    border-radius: 0;
    border: 0;
    border-left: 1px solid var(--color-border);
    transform: translateX(105%);
    transition: transform var(--dur) var(--ease-soft);
    box-shadow: var(--shadow-lift);
    overflow: hidden;
    z-index: 1;
  }

  .catalog-filters-backdrop {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 0;
    background: rgba(26, 25, 23, 0.4);
    opacity: 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: opacity var(--dur) var(--ease-out);
  }

  .catalog-filters-layer.is-open .catalog-filters-backdrop {
    opacity: 1;
  }

  .catalog-filters-layer.is-open .catalog-filters {
    transform: none;
  }

  .catalog-filters__mob-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    flex-shrink: 0;
    min-height: var(--header-h);
    padding: 0 var(--sp-5);
    border-bottom: 1px solid var(--color-border);
  }

  .catalog-filters__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--touch);
    height: var(--touch);
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-ink);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .catalog-filters__close:hover {
    background: var(--color-cream);
  }

  .catalog-filters__close svg {
    width: 1.2rem;
    height: 1.2rem;
  }

  .catalog-filters__scroll {
    flex: 1;
    min-height: 0;
    padding: var(--sp-5);
  }

  .catalog-filters__mob-foot {
    display: block;
    flex-shrink: 0;
    padding: var(--sp-4) var(--sp-5);
    padding-bottom: calc(var(--sp-4) + var(--safe-b));
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
  }

  .catalog-filters__mob-foot .btn {
    width: 100%;
  }

  body.is-filters-open {
    overflow: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-filters,
  .catalog-filters-backdrop {
    transition: none;
  }
}