.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  height: var(--header-h);
  padding: 0 var(--margin);
  transition:
    transform 450ms var(--ease-out),
    background-color 350ms ease,
    box-shadow 350ms ease;
}

.header.is-scrolled {
  background-color: rgb(8 8 8 / 0.95);
  box-shadow: inset 0 -1px 0 var(--white-a06);
}

.header.is-hidden {
  transform: translateY(-100%);
}

html.is-menu-open .header {
  background-color: transparent;
  box-shadow: none;
  transform: none;
}

.header__bar {
  display: flex;
  align-items: center;
  gap: 2.75rem;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
}

.header__logo {
  display: block;
  flex: none;
  width: 8.25rem;
  margin-right: auto;
  padding: 0.625rem 0;
  color: var(--magenta);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  border-radius: 2px;
  color: var(--white);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.3rem;
  height: 2px;
  border-radius: 2px;
  background: var(--magenta);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 400ms var(--ease-out);
}

.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left center;
}

@media (hover: hover) and (pointer: fine) {
  .nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left center;
  }
}

.header__cta-wrap {
  flex: none;
}

.header__cta .icon--chat {
  display: none;
}

.header__cta {
  transition:
    transform 160ms var(--ease-out),
    color 300ms var(--ease-out),
    box-shadow 300ms var(--ease-out),
    opacity 250ms var(--ease-out),
    visibility 0s linear 0s;
}

html.is-menu-open .header__cta {
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 200ms var(--ease-out),
    visibility 0s linear 200ms;
}

.menu-toggle {
  position: relative;
  display: none;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  color: var(--white);
}

.menu-toggle__line {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1.375rem;
  height: 1.5px;
  margin: -0.75px 0 0 -0.6875rem;
  border-radius: 1px;
  background: currentColor;
  transition: transform 320ms var(--ease-out);
}

.menu-toggle__line:nth-child(1) {
  transform: translateY(-4px);
}

.menu-toggle__line:nth-child(2) {
  transform: translateY(4px);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(1) {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(2) {
  transform: rotate(-45deg);
}

.menu {
  display: none;
}

@media (max-width: 1024px) {
  .header__bar {
    gap: 2rem;
  }

  .nav-list {
    gap: 1.75rem;
  }
}

@media (max-width: 860px) {
  .header__bar {
    gap: 0.5rem;
  }

  .header__logo {
    width: 5.75rem;
  }

  .header__nav {
    display: none;
  }

  .header__cta {
    --button-h: 2.5rem;
    gap: 0.5rem;
    padding: 0 1rem;
    font-size: 0.875rem;
  }

  .header__cta .icon {
    width: 0.9375rem;
    height: 0.9375rem;
  }

  .menu-toggle {
    display: inline-flex;
    margin-right: -0.6875rem;
  }

  .menu {
    position: fixed;
    inset: 0;
    z-index: 50;
    isolation: isolate;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2.5rem;
    padding: calc(var(--header-h) + 2.5rem) var(--margin) calc(2rem + env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--black);
    clip-path: inset(0 0 100% 0);
    visibility: hidden;
    transition:
      clip-path 420ms var(--ease-in-out),
      visibility 0s linear 420ms;
  }

  .menu.is-open {
    clip-path: inset(0);
    visibility: visible;
    transition:
      clip-path 560ms var(--ease-in-out),
      visibility 0s;
  }

  .menu__decor {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
  }

  .menu__glow {
    position: absolute;
    left: -30%;
    right: -30%;
    bottom: -35%;
    height: 70%;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgb(248 0 88 / 0.2), rgb(248 0 88 / 0.06) 55%, rgb(248 0 88 / 0));
  }

  .menu__mark {
    position: absolute;
    right: -18%;
    bottom: 22%;
    width: 78%;
    max-width: none;
    color: rgb(245 245 245 / 0.035);
  }

  .menu__list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .menu__item {
    opacity: 0;
    transform: translateY(1.25rem);
    transition:
      opacity 240ms var(--ease-out),
      transform 240ms var(--ease-out);
  }

  .menu__list .menu__item:nth-child(2) {
    --i: 1;
  }

  .menu__list .menu__item:nth-child(3) {
    --i: 2;
  }

  .menu__footer.menu__item {
    --i: 3;
  }

  .menu.is-open .menu__item {
    opacity: 1;
    transform: none;
    transition-duration: 700ms;
    transition-delay: calc(200ms + var(--i, 0) * 60ms);
  }

  .menu__list .menu__item {
    transform: none;
  }

  .menu__mask {
    display: inline-block;
    overflow: clip;
    padding-bottom: 0.12em;
    margin-bottom: -0.12em;
  }

  .menu__mask > span {
    display: inline-block;
    transform: translateY(108%);
    transition: transform 260ms var(--ease-out);
  }

  .menu.is-open .menu__mask > span {
    transform: none;
    transition: transform 950ms var(--ease-out) calc(180ms + var(--i, 0) * 75ms);
  }

  .menu__link {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    min-height: 2.75rem;
    padding: 0.375rem 0;
    color: var(--white);
    font-size: clamp(2.25rem, 10vw, 3.25rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.03em;
    transition: color 250ms var(--ease-out);
  }

  .menu__link.is-active {
    color: var(--magenta);
  }

  .menu__index {
    color: var(--magenta);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    transform: translateY(-1.1em);
  }

  .menu__footer {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
  }

  .menu__footer .button {
    justify-content: space-between;
  }

  .menu__contacts {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .menu__contact {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    color: var(--gray);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.02em;
  }

  html:not(.js) .header {
    position: absolute;
    height: auto;
    padding-block: 0.75rem;
  }

  html:not(.js) .header__bar {
    flex-wrap: wrap;
    row-gap: 0.25rem;
  }

  html:not(.js) .header__nav {
    display: block;
    order: 3;
    width: 100%;
  }

  html:not(.js) .nav-list {
    gap: 1.5rem;
  }

  html:not(.js) .menu-toggle {
    display: none;
  }
}

@media (max-width: 359px) {
  .header__cta {
    width: 2.5rem;
    padding: 0;
  }

  .header__cta-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .header__cta .icon--up-right {
    display: none;
  }

  .header__cta .icon--chat {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .menu,
  .menu.is-open {
    transition: opacity 200ms ease, visibility 0s linear 200ms;
    clip-path: none;
    opacity: 0;
  }

  .menu.is-open {
    opacity: 1;
    transition: opacity 200ms ease, visibility 0s;
  }

  .menu__item,
  .menu.is-open .menu__item,
  .menu__mask > span,
  .menu.is-open .menu__mask > span {
    opacity: 1;
    transform: none;
    transition: none;
  }
}