/* Б-01 Шапка. Источник: по вёрстке verter.me/wms/, перерисован */

.b-header {
  --topbar-height: 0px;
  position: sticky;
  top: calc(-1 * var(--topbar-height));
  z-index: var(--z-header);
  background: var(--color-surface);
}

.b-header.is-scrolled {
  box-shadow: var(--shadow-header);
}

/* Служебная строка */

.b-header__topbar {
  display: none;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-muted);
  font-size: var(--fs-caption);
}

.b-header__topbar-inner {
  display: flex;
  justify-content: flex-end;
}

.b-header__service {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  color: var(--color-text-muted);
}

.b-header__service-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.b-header__service-link:hover {
  color: var(--color-link);
  text-decoration: underline;
}

/* Основная строка */

.b-header__bar {
  border-bottom: 1px solid var(--color-border);
}

.b-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--header-height);
}

.b-header__switcher,
.b-header__burger,
.b-header__products-close {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text);
}

.b-header__switcher:hover,
.b-header__burger:hover,
.b-header__products-close:hover {
  background: var(--color-surface-muted);
}

.b-header__switcher:focus-visible,
.b-header__burger:focus-visible,
.b-header__products-close:focus-visible,
.b-header__sub-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.b-header__switcher {
  display: none;
}

.b-header__switcher[aria-expanded="true"] {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.b-header__logo {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 0.625rem;
  min-height: var(--tap-min);
  margin-right: auto;
  color: var(--color-text);
  text-decoration: none;
}

.b-header__logo:hover {
  color: var(--color-text);
}

.b-header__logo-mark {
  flex: none;
  width: 2.25rem;
  height: auto;
  aspect-ratio: 62.4 / 49.6;
}

.b-header__logo-text {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3em;
  font-size: 1.3125rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1;
}

.b-header__logo-product {
  color: var(--color-accent);
}

.b-header__phone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  white-space: nowrap;
}

.b-header__phone:hover {
  color: var(--color-link);
}

.b-header__phone .c-icon {
  width: 1.375rem;
  height: 1.375rem;
}

.b-header__phone-text {
  display: none;
}

.b-header__cta {
  display: none;
  flex: none;
  min-height: 2.75rem;
  padding-inline: var(--space-5);
  font-size: 0.9375rem;
  white-space: nowrap;
}

.b-header__burger-close {
  display: none;
}

.b-header__burger[aria-expanded="true"] .b-header__burger-open {
  display: none;
}

.b-header__burger[aria-expanded="true"] .b-header__burger-close {
  display: block;
}

/* Мобильное меню до 1360 px */

.b-header__panel {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-4) var(--container-pad) var(--space-8);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-surface);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard), visibility 0s linear var(--dur-base);
}

.b-header__panel.is-open {
  visibility: visible;
  opacity: 1;
  transform: none;
  transition-delay: 0s;
}

.b-header__mobile-top {
  display: grid;
  gap: var(--space-2);
}

.b-header__mobile-phone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--control-height);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.b-header__menu {
  list-style: none;
}

.b-header__item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.b-header__link {
  display: flex;
  flex: 1;
  align-items: center;
  min-height: 3.5rem;
  color: var(--color-text);
  font-size: 1.0625rem;
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.b-header__link:hover,
.b-header__link[aria-current="page"],
.b-header__item.is-current > .b-header__link {
  color: var(--color-link);
}

.b-header__sub-toggle {
  display: inline-grid;
  place-items: center;
  width: var(--tap-min);
  height: var(--tap-min);
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text-muted);
}

.b-header__sub-toggle .c-icon {
  transition: transform var(--dur-fast) var(--ease-standard);
}

.b-header__sub-toggle[aria-expanded="true"] .c-icon {
  transform: rotate(180deg);
}

.b-header__dropdown {
  display: none;
  flex-basis: 100%;
  padding-bottom: var(--space-3);
}

.b-header__item.is-open > .b-header__dropdown {
  display: block;
}

.b-header__sublist {
  display: grid;
  gap: var(--space-1);
  list-style: none;
}

.b-header__sublink {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.125rem;
  min-height: var(--tap-min);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
}

.b-header__sublink:hover {
  background: var(--color-accent-softer);
  color: var(--color-link);
}

.b-header__sublink[aria-current="page"] {
  color: var(--color-link);
}

.b-header__sublink-title {
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
}

.b-header__sublink-text {
  color: var(--color-text-subtle);
  font-size: var(--fs-caption);
  line-height: 1.35;
}

.b-header__mobile-label {
  margin-bottom: var(--space-2);
  color: var(--color-text-subtle);
  font-size: var(--fs-caption);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
}

.b-header__mobile-product-list {
  display: grid;
  gap: var(--space-1);
  list-style: none;
}

.b-header__mobile-product {
  display: flex;
  align-items: center;
  min-height: var(--tap-min);
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.b-header__mobile-product::after {
  content: "›";
  margin-left: auto;
  padding-left: var(--space-3);
  color: var(--color-text-subtle);
  font-size: 1.25rem;
}

.b-header__mobile-service {
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  list-style: none;
}

.b-header__mobile-service .b-header__service-link {
  min-height: var(--tap-min);
}

html.is-menu-open {
  overflow: hidden;
}

/* Панель «Продукты Verter» */

.b-header__products {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  z-index: var(--z-dropdown);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  animation: b-header-drop var(--dur-base) var(--ease-standard);
}

@keyframes b-header-drop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
}

.b-header__products-inner {
  position: relative;
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-6);
}

.b-header__products-title {
  font-size: var(--fs-h3);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--ls-heading);
}

.b-header__products-list {
  display: grid;
  gap: var(--space-3);
  list-style: none;
}

.b-header__product {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 100%;
  padding: var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  text-decoration: none;
}

.b-header__product:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.b-header__product.is-current {
  border-color: var(--color-accent);
  background: var(--color-accent-softer);
}

.b-header__product-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--color-surface-sunken);
  color: var(--color-text);
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
}

.b-header__product-icon--wms {
  background: var(--color-product-wms);
  color: var(--color-text-inverse);
}

.b-header__product-icon--erp {
  background: var(--color-product-erp);
  color: var(--color-text-inverse);
}

.b-header__product-body {
  display: grid;
  gap: 0.125rem;
}

.b-header__product-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-bold);
}

.b-header__product-here {
  padding: 0.125rem var(--space-2);
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
}

.b-header__product-text {
  color: var(--color-text-subtle);
  font-size: var(--fs-small);
}

.b-header__products-close {
  position: absolute;
  top: var(--space-5);
  right: var(--container-pad);
}

/* Планшет */

@media (min-width: 768px) {
  .b-header__switcher {
    display: inline-grid;
  }

  .b-header__cta {
    display: inline-flex;
    margin-left: var(--space-2);
  }

  body[data-page="demo"] .b-header__cta,
  body[data-page="spasibo"] .b-header__cta {
    display: none;
  }

  .b-header__mobile-top .c-btn {
    display: none;
  }

  .b-header__products-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Ноутбук: служебная строка */

@media (min-width: 1024px) {
  .b-header {
    --topbar-height: 2.25rem;
    --header-height: 4.5rem;
  }

  .b-header__topbar {
    display: block;
  }

  .b-header__mobile-service {
    display: none;
  }
}

/* Полное меню с 1360 px (исключение, см. стайлгайд) */

@media (min-width: 1360px) {
  .b-header__burger,
  .b-header__mobile-top,
  .b-header__mobile-products {
    display: none;
  }

  .b-header__logo {
    margin-right: var(--space-4);
  }

  .b-header__panel {
    position: static;
    display: flex;
    flex: 1;
    gap: 0;
    padding: 0;
    overflow: visible;
    background: none;
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: none;
  }

  .b-header__menu {
    display: flex;
    align-items: center;
    gap: 0.125rem;
  }

  .b-header__item {
    flex-wrap: nowrap;
    border-bottom: 0;
  }

  .b-header__link {
    min-height: 2.75rem;
    padding: 0 0.4375rem;
    border-radius: var(--radius-xs);
    font-size: 0.9375rem;
    white-space: nowrap;
  }

  .b-header__item--has-sub > .b-header__link {
    padding-right: 0;
  }

  .b-header__sub-toggle {
    width: 1.375rem;
    height: 2.75rem;
    border-radius: var(--radius-xs);
  }

  .b-header__item.is-current > .b-header__link::after {
    content: "";
    position: absolute;
    right: 0.5rem;
    bottom: -0.875rem;
    left: 0.5rem;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
  }

  .b-header__dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: -0.5rem;
    z-index: var(--z-dropdown);
    display: block;
    min-width: 18rem;
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    visibility: hidden;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity var(--dur-fast) var(--ease-standard), transform var(--dur-fast) var(--ease-standard), visibility 0s linear var(--dur-fast);
  }

  /* Мостик для курсора */
  .b-header__dropdown::before {
    content: "";
    position: absolute;
    right: 0;
    bottom: 100%;
    left: 0;
    height: 0.75rem;
  }

  .b-header__dropdown--wide {
    min-width: 36rem;
  }

  .b-header__dropdown--end {
    right: -0.5rem;
    left: auto;
  }

  .b-header__item--has-sub:hover > .b-header__dropdown,
  .b-header__item.is-open > .b-header__dropdown {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition-delay: 0s;
  }

  .b-header__sublist--cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .b-header__phone {
    margin-left: auto;
  }
}

@media (min-width: 1440px) {
  .b-header__link {
    padding-inline: 0.5rem;
  }

  .b-header__phone .c-icon {
    display: none;
  }

  .b-header__phone-text {
    display: inline;
  }

  .b-header__phone {
    padding-inline: var(--space-2);
  }
}