/* ═══════════════════════════════════════════════════════════════
   Sidebar — MC Виан B2B Portal
   ═══════════════════════════════════════════════════════════════ */

.sidebar-layout {
  display: flex;
  gap: var(--space-6);
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
  height: fit-content;
  max-height: calc(100vh - var(--header-height) - var(--space-12));
  overflow-y: auto;
}

.sidebar__panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  padding: var(--space-5);
}

.sidebar__profile {
  text-align: center;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
}
.sidebar__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto var(--space-3);
  object-fit: cover;
  border: 3px solid var(--color-primary-light);
}
.sidebar__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}
.sidebar__role {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  text-decoration: none;
}
.sidebar__link:hover {
  background: var(--color-bg);
  color: var(--color-text);
}
.sidebar__link.is-active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.sidebar__link i {
  font-size: 20px;
  width: 24px;
  text-align: center;
}

.sidebar__manager {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-light);
}
.sidebar__manager-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.sidebar__manager-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.sidebar__manager-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.sidebar__manager-name {
  font-size: 14px;
  font-weight: 500;
}
.sidebar__manager-phone {
  font-size: 12px;
  color: var(--color-text-muted);
}

.sidebar__chat-link {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-3);
  padding: 6px 10px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background 0.15s;
}
.sidebar__chat-link:hover {
  background: var(--color-primary-light, rgba(67,97,238,0.08));
}
.sidebar__chat-link i {
  font-size: 1rem;
}

.sidebar-content {
  flex: 1;
  min-width: 0;
}

/* Mobile sidebar as bottom nav */
@media (max-width: 767px) {
  .sidebar-layout {
    flex-direction: column;
    gap: 0;
    padding-bottom: 72px;
  }
  .sidebar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    width: 100%;
    max-height: none;
    z-index: var(--z-sticky);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -2px 8px var(--color-shadow);
    padding: var(--space-2) var(--space-4);
    overflow: visible;
  }
  .sidebar__panel {
    box-shadow: none;
    border: none;
    padding: 0;
  }
  .sidebar__profile,
  .sidebar__manager {
    display: none;
  }
  .sidebar__nav {
    flex-direction: row;
    justify-content: space-around;
  }
  .sidebar__link {
    flex-direction: column;
    gap: 2px;
    padding: var(--space-1);
    font-size: 11px;
  }
  .sidebar__link i {
    font-size: 22px;
  }
  .sidebar__link span {
    font-size: 10px;
  }
}

/* Catalog sidebar (filters) */
.filters-sidebar {
  width: 280px;
  flex-shrink: 0;
}

.filters-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-4, 16px);
  margin-bottom: var(--space-2, 8px);
  border-bottom: 1.5px solid var(--color-border);
}

.filters-sidebar__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.filters-sidebar__apply {
  margin-top: var(--space-5, 20px);
  width: 100%;
  position: sticky;
  bottom: 0;
  z-index: 2;
}

/* ── Filter Group ────────────────────────────────────────── */
.filter-group {
  border-bottom: 1px solid var(--color-border-light, #f1f5f9);
}
.filter-group:last-of-type { border-bottom: none; }

.filter-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--color-text-secondary, #64748b);
  padding: 14px 0 14px 0;
  background: none;
  border: none;
  transition: color 0.15s;
  user-select: none;
}
.filter-group__header:hover {
  color: var(--color-text);
}
.filter-group__header i {
  transition: transform 0.25s cubic-bezier(0.4,0,0.2,1);
  font-size: 14px;
  color: var(--color-text-muted, #94a3b8);
}
.filter-group.is-open .filter-group__header i,
.filter-group__header.is-open i {
  transform: rotate(180deg);
}

.filter-group__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4,0,0.2,1), padding 0.3s;
  padding: 0 0;
}
.filter-group.is-open .filter-group__body {
  max-height: 800px;
  padding-bottom: 10px;
}

.filter-group__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 8px);
}

/* ── Filter Chips (Category & Options) ───────────────────── */
.filter-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: var(--radius-md, 8px);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text);
  transition: background 0.15s, color 0.15s;
  position: relative;
  line-height: 1.35;
}
.filter-chip:hover {
  background: var(--color-bg, #f8fafc);
}
.filter-chip.is-parent {
  font-weight: 600;
  color: var(--color-text);
}
.filter-chip--sub {
  padding-left: 28px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #64748b);
}
.filter-chip--sub::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--color-border);
}
.filter-chip--l3 {
  padding-left: 44px;
}
.filter-chip--l3::before {
  left: 30px;
}

/* Custom radio inside filter-chip */
.filter-chip__radio {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  min-width: 16px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  position: relative;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  flex-shrink: 0;
  margin: 0;
}
.filter-chip__radio:checked {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: inset 0 0 0 3px var(--color-surface, #fff);
}
.filter-chip__radio:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Custom checkbox inside filter-chip */
.filter-chip__check {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  min-width: 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xs, 4px);
  position: relative;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  flex-shrink: 0;
  margin: 0;
}
.filter-chip__check:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.filter-chip__check:checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.filter-chip__check:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.filter-chip__label {
  flex: 1;
  line-height: 1.35;
}

.filter-chip__count {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted, #94a3b8);
  background: var(--color-bg, #f8fafc);
  padding: 1px 6px;
  border-radius: var(--radius-full, 9999px);
  min-width: 20px;
  text-align: center;
}

/* Price range modern */
.filter-price {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 2px 0;
}
.filter-price__input {
  flex: 1;
  height: 38px;
  padding: 0 12px;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg, #f8fafc);
  border: 1.5px solid var(--color-border-light, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-width: 0;
}
.filter-price__input::placeholder {
  color: var(--color-text-muted, #94a3b8);
}
.filter-price__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 126, 255, 0.08);
  background: var(--color-surface);
}
.filter-price__sep {
  color: var(--color-border);
  flex-shrink: 0;
  font-size: 0.875rem;
}

/* KTRU/text input */
.filter-text-input {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg, #f8fafc);
  border: 1.5px solid var(--color-border-light, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.filter-text-input::placeholder {
  color: var(--color-text-muted, #94a3b8);
}
.filter-text-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 126, 255, 0.08);
  background: var(--color-surface);
}

/* Char filter block */
.filter-char {
  margin-bottom: 10px;
}
.filter-char:last-child {
  margin-bottom: 0;
}
.filter-char__name {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary, #64748b);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Range slider */
.range-inputs {
  display: flex;
  gap: var(--space-2, 8px);
  align-items: center;
}
.range-inputs input {
  width: 100%;
}
.range-inputs__sep {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* Active filter tags */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 8px);
  margin-bottom: var(--space-4, 16px);
}
.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1, 4px);
  padding: var(--space-1, 4px) var(--space-3, 12px);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
}
.filter-tag__remove {
  cursor: pointer;
  font-size: 14px;
  opacity: 0.7;
  transition: var(--transition-fast);
}
.filter-tag__remove:hover { opacity: 1; }

/* Mobile filter drawer */
@media (max-width: 1023px) {
  .filters-sidebar {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--color-surface);
    z-index: var(--z-overlay);
    transition: right 0.3s ease;
    overflow-y: auto;
    padding: var(--space-5);
    box-shadow: var(--shadow-xl);
  }
  .filters-sidebar.is-open {
    right: 0;
  }
  .filters-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(11,18,32,0.4);
    z-index: calc(var(--z-overlay) - 1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  .filters-backdrop.is-open {
    opacity: 1;
    visibility: visible;
  }
}