.filter-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 130;
  width: min(360px, 90vw);
  background-color: var(--color-bg-secondary);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transform-origin: right center;
  transition: transform var(--duration-panel) var(--ease-drawer);
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}

.filter-panel.is-open {
  transform: translateX(0);
}

.filter-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.filter-panel__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-panel__form {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-lg);
}

.filter-panel__group {
  margin-bottom: var(--space-lg);
  padding: 0;
}

.filter-panel__legend {
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.filter-panel__check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 36px;
  font-size: var(--text-small);
  color: var(--color-text-muted);
  cursor: pointer;
}

.filter-panel__check input {
  accent-color: var(--color-accent);
  width: 18px;
  height: 18px;
}

.filter-panel__range {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.filter-panel__range span {
  color: var(--color-text-muted);
}

.filter-panel__sizes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.filter-panel__size {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-small);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.filter-panel__size:has(input:checked) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-panel__size input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.filter-panel__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-top: var(--space-md);
}

.filter-panel__close {
  display: flex;
}

.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.catalog-toolbar__filters-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.filter-count-badge:not([hidden]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 18px;
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  border-radius: 9px;
}

.catalog-toolbar__sort {
  flex: 1;
  max-width: 200px;
}

@media (min-width: 1024px) {
  .filter-panel {
    position: static;
    transform: none;
    width: auto;
    background: transparent;
    border: none;
    padding: 0;
  }

  .filter-panel__header,
  .filter-panel__close,
  .filter-panel__overlay,
  .catalog-toolbar__filters-btn {
    display: none;
  }

  .filter-panel__form {
    padding: 0;
    overflow: visible;
  }
}

@media (max-width: 1023px) {
  .catalog-layout > .filter-panel {
    position: fixed;
  }
}