.header {
  --header-ease: cubic-bezier(0.22, 1, 0.36, 1);

  position: sticky;
  top: 0;
  z-index: 50;
  padding-block: 26px;
  pointer-events: none;
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: var(--header-full-width, var(--container-width));
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background-color: rgba(255, 255, 255, 0);
  -webkit-backdrop-filter: blur(0);
  backdrop-filter: blur(0);
  pointer-events: auto;
  transition:
    max-width 0.6s var(--header-ease),
    padding 0.6s var(--header-ease),
    gap 0.6s var(--header-ease),
    translate 0.6s var(--header-ease),
    background-color 0.4s ease,
    -webkit-backdrop-filter 0.4s ease,
    backdrop-filter 0.4s ease,
    border-color 0.4s ease,
    box-shadow 0.4s ease;
}

.header__brand,
.header__actions {
  flex: 1 1 0;
}

.header__nav {
  padding: 8px;
  background-color: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-pill);
  transition: padding 0.6s var(--header-ease), background-color 0.4s ease;
}

.header__nav-list {
  display: flex;
  align-items: center;
}

.header__nav-link {
  display: flex;
  align-items: center;
  height: 42px;
  padding-inline: 26px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-pill);
  transition: background-color var(--transition), color 0.4s ease, padding 0.6s var(--header-ease);
}

.header__nav-link:hover,
.header__nav-link--active {
  background-color: var(--color-bg);
}

.header__nav-btn {
  display: none;
}

.header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 40px;
  transition: gap 0.6s var(--header-ease);
}

.header--compact .header__inner {
  gap: 16px;
  max-width: var(--header-compact-width, var(--container-width));
  padding: 7px 7px 7px 24px;
  background-color: rgba(20, 28, 35, 0.82);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  backdrop-filter: blur(16px) saturate(1.4);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px rgba(20, 28, 35, 0.22), 0 2px 6px rgba(20, 28, 35, 0.08);
  translate: 0 -12px;
}

.header--compact .header__nav {
  padding: 0;
  background-color: transparent;
}

.header--compact .logo,
.header--compact .lang__btn {
  color: #fff;
}

.header--compact .logo__icon-bg {
  fill: rgba(255, 255, 255, 0.35);
}

.header--compact .header__nav-link {
  padding-inline: 18px;
  color: rgba(255, 255, 255, 0.78);
}

.header--compact .header__nav-link:hover,
.header--compact .header__nav-link--active {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}

.header--compact .header__btn {
  color: var(--color-dark);
  background-color: #fff;
}

.header--compact .header__btn:hover {
  background-color: #e3e9ed;
}

.header--compact .burger {
  background-color: rgba(255, 255, 255, 0.12);
}

.header--compact .burger__line {
  background-color: #fff;
}

.header--compact .header__actions {
  gap: 24px;
}

.header--measuring .header__inner,
.header--measuring .header__inner * {
  transition: none !important;
}

.header--measuring .header__inner {
  max-width: var(--container-width);
}

.header--measuring.header--compact .header__inner {
  width: max-content;
  max-width: none;
}

.lang {
  position: relative;
}

.lang__btn {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: color 0.4s ease;
  height: 42px;
  font-size: 16px;
  font-weight: 500;
}

.lang__arrow {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.6;
  transition: transform var(--transition);
}

.lang--open .lang__arrow {
  transform: rotate(180deg);
}

.lang__list {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  min-width: 64px;
  padding: 6px;
  background-color: var(--color-surface);
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(20, 28, 35, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.lang--open .lang__list {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.lang__link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  text-align: center;
  border-radius: 8px;
  transition: background-color var(--transition);
}

.lang__link:hover,
.lang__link--active {
  background-color: var(--color-bg);
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  background-color: var(--color-surface);
  border-radius: 50%;
  transition: background-color 0.4s ease;
}

.burger__line {
  display: block;
  width: 18px;
  height: 1.5px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition), background-color 0.4s ease;
}

.header--menu-open .burger__line:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

.header--menu-open .burger__line:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

@media (max-width: 1500px) {
  .header__nav-link {
    padding-inline: 20px;
  }
}

@media (max-width: 1200px) {
  .header__nav-link {
    height: 38px;
    padding-inline: 14px;
    font-size: 15px;
  }

  .header__actions {
    gap: 24px;
  }

  .header--compact .header__nav-link {
    padding-inline: 12px;
  }

  .header--compact .header__actions {
    gap: 16px;
  }
}

@media (max-width: 1024px) {
  .header {
    padding-block: 16px;
  }

  .header--compact .header__inner {
    max-width: calc(100% - 24px);
    padding: 6px 6px 6px 18px;
    translate: 0 -8px;
  }

  .header--compact .header__nav {
    padding: 12px;
    background-color: var(--color-surface);
  }

  .header--compact .header__nav-link {
    padding-inline: 18px;
    color: var(--color-text);
  }

  .header--compact .header__nav-link:hover,
  .header--compact .header__nav-link--active {
    color: var(--color-text);
    background-color: var(--color-bg);
  }

  .header__actions {
    gap: 20px;
  }

  .header__burger {
    display: flex;
  }

  .header__nav {
    display: none;
  }

  .header__nav-list {
    flex-direction: column;
    align-items: stretch;
  }

  .header__nav-link {
    height: 52px;
    padding-inline: 18px;
    font-size: 17px;
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header__inner,
  .header__nav,
  .header__nav-link,
  .header__actions {
    transition-duration: 0.01s;
  }
}

@media (max-width: 768px) {
  .header__btn {
    display: none;
  }

  .header__nav-btn {
    display: flex;
    width: 100%;
    margin-top: 8px;
  }
}