.site-header {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: rgb(255 255 255 / 96%);
  backdrop-filter: blur(1rem);
  -webkit-backdrop-filter: blur(1rem);
}

.site-header__inner {
  display: flex;
  height: 100%;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.35rem);
}

.site-brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.65rem;
}

.site-brand__mark {
  display: grid;
  width: 2.5rem;
  flex: 0 0 2.5rem;
  place-items: center;
}

.site-brand__mark img {
  width: 100%;
  height: 2.5rem;
  object-fit: contain;
}

.site-brand__copy {
  display: grid;
  min-width: 0;
  line-height: 1.05;
}

.site-brand__caption {
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-brand__name {
  overflow: hidden;
  margin-top: 0.2rem;
  font-size: 0.875rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav {
  min-width: 0;
  margin-inline: auto;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 1.55vw, 1.45rem);
}

.site-nav a,
.site-header__phone {
  color: var(--color-ink-soft);
  font-size: 0.8125rem;
  font-weight: 650;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-nav__links a:hover {
  color: var(--color-accent);
}

.site-header__phone:hover {
  color: #455f82;
}

.site-header__actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.75rem;
}

.site-header__phones {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 1.3vw, 1.25rem);
}

.site-header__phone {
  display: inline-flex;
  min-height: 2.55rem;
  align-items: center;
  gap: 0.48rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: #607696;
  font-size: clamp(0.92rem, 1.12vw, 1.08rem);
  font-weight: 650;
  letter-spacing: -0.015em;
}

.site-header__phone svg {
  width: 1.35rem;
  height: 1.35rem;
  flex: 0 0 1.35rem;
  color: currentColor;
}

.site-header__phone-copy {
  display: grid;
  gap: 0.16rem;
  line-height: 1;
}

.site-header__phone-copy small {
  color: var(--color-muted);
  font-size: 0.55rem;
  font-weight: 850;
  letter-spacing: 0.075em;
  line-height: 1;
  text-transform: uppercase;
}

.site-header__phone-copy > span {
  display: block;
  line-height: 1;
}

.site-nav__phone > span {
  display: grid;
  gap: 0.08rem;
  line-height: 1.05;
}

.site-nav__phone small {
  color: var(--color-muted);
  font-size: 0.55rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.menu-toggle {
  position: relative;
  display: none;
  width: 2.65rem;
  height: 2.65rem;
  flex: 0 0 2.65rem;
  padding: 0;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: white;
  color: var(--color-ink);
}

.menu-toggle span {
  position: absolute;
  width: 1.125rem;
  height: 0.125rem;
  border-radius: var(--radius-pill);
  background: currentColor;
  transition: transform var(--transition-base), translate var(--transition-base);
}

.menu-toggle span:first-child { translate: 0 -0.25rem; }
.menu-toggle span:last-child { translate: 0 0.25rem; }
.menu-toggle[aria-expanded="true"] span:first-child { translate: 0 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { translate: 0 0; transform: rotate(-45deg); }

.site-nav__mobile-actions,
.site-nav-backdrop {
  display: none;
}

@media (max-width: 77.999rem) {
  .site-header__inner {
    gap: 0.75rem;
  }

  .menu-toggle {
    z-index: 4;
    display: grid;
    margin-left: 0;
  }

  .site-brand {
    z-index: 4;
  }

  .site-nav-backdrop {
    position: fixed;
    z-index: 1;
    inset: var(--header-height) 0 0;
    display: block;
    width: 100%;
    height: calc(100svh - var(--header-height));
    padding: 0;
    border: 0;
    background: rgb(17 20 25 / 46%);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
  }

  .site-nav-backdrop:not([hidden]) {
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav {
    position: fixed;
    z-index: 2;
    inset: var(--header-height) 0 0 auto;
    display: grid;
    width: min(23rem, calc(100vw - 1.25rem));
    height: calc(100svh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    grid-template-rows: minmax(0, 1fr) auto;
    margin: 0;
    border-left: 1px solid var(--color-border);
    background: white;
    box-shadow: -1.5rem 0 3rem rgb(20 20 20 / 12%);
    overflow-y: auto;
    overscroll-behavior: contain;
    pointer-events: none;
    transform: translateX(102%);
    transition: transform var(--transition-base);
  }

  .site-nav.is-open {
    pointer-events: auto;
    transform: translateX(0);
  }

  .site-nav__links {
    display: grid;
    align-content: start;
    gap: 0;
    padding: 0.75rem 1.25rem 1rem;
  }

  .site-nav__links a {
    padding-block: 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-ink);
    font-size: 1rem;
    font-weight: 720;
  }

  .site-nav__mobile-actions {
    display: grid;
    gap: 0.75rem;
    padding: 1rem 1.25rem 1.25rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-warm);
  }

  .site-nav__phones {
    display: grid;
    gap: 0.55rem;
  }

  .site-nav__phone {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 3.2rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: 0.9rem;
    background: white;
    color: var(--color-ink);
    font-size: 1rem;
    font-weight: 800;
  }

  .site-nav__phone svg {
    color: var(--color-accent);
  }

  .site-nav__mobile-actions .button {
    width: 100%;
  }

  .site-header__actions {
    z-index: 4;
    margin-left: auto;
  }
}

@media (max-width: 63.999rem) {
  :root {
    --header-height: 4.125rem;
  }

  .site-header__inner {
    height: var(--header-height);
    gap: 0.65rem;
  }

  .site-header__phones {
    display: none;
  }

  .site-header__actions {
    display: flex;
    margin-left: auto;
  }

  .site-header__apply {
    min-height: 2.55rem;
    padding: 0.68rem 0.95rem;
    font-size: 0.76rem;
    white-space: nowrap;
  }

  .site-nav-backdrop {
    inset: var(--header-height) 0 0;
    height: calc(100svh - var(--header-height));
    height: calc(100dvh - var(--header-height));
  }

  .site-nav {
    inset: var(--header-height) 0 0 auto;
    height: calc(100svh - var(--header-height));
    height: calc(100dvh - var(--header-height));
  }
}

@media (max-width: 44rem) {
  .site-brand__copy {
    display: none;
  }

  .site-brand__mark,
  .site-brand__mark img {
    width: 2.35rem;
    height: 2.35rem;
  }

  .site-brand__mark {
    flex-basis: 2.35rem;
  }

  .site-nav {
    width: min(22rem, calc(100vw - 0.75rem));
  }
}

@media (max-width: 34rem) {
  .site-header__inner {
    gap: 0.5rem;
  }

  .site-header__apply {
    min-height: 2.45rem;
    padding-inline: 0.78rem;
    font-size: 0.7rem;
  }

  .menu-toggle {
    width: 2.55rem;
    height: 2.55rem;
    flex-basis: 2.55rem;
  }

  .site-nav__links {
    padding-inline: 1rem;
  }

  .site-nav__links a {
    padding-block: 0.92rem;
  }

  .site-nav__mobile-actions {
    padding: 0.9rem 1rem max(1rem, env(safe-area-inset-bottom));
  }
}

@media (max-width: 23rem) {
  .site-header__inner {
    gap: 0.4rem;
  }

  .site-brand__mark,
  .site-brand__mark img {
    width: 2.1rem;
    height: 2.1rem;
  }

  .site-brand__mark {
    flex-basis: 2.1rem;
  }

  .site-header__apply {
    min-height: 2.35rem;
    padding-inline: 0.62rem;
    font-size: 0.65rem;
  }

  .menu-toggle {
    width: 2.4rem;
    height: 2.4rem;
    flex-basis: 2.4rem;
  }
}

@media (max-width: 77.999rem) and (max-height: 38rem) {
  .site-nav {
    grid-template-rows: auto auto;
    align-content: start;
  }

  .site-nav__links a {
    padding-block: 0.72rem;
  }

  .site-nav__mobile-actions {
    gap: 0.55rem;
    padding-top: 0.75rem;
  }

  .site-nav__phone {
    min-height: 2.9rem;
    padding-block: 0.5rem;
  }
}

/* v6: IT is a first-class navigation item on desktop and in the same right drawer. */
.site-nav__links .site-nav__it-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-ink-soft);
}

@media (max-width: 77.999rem) {
  .site-nav {
    -webkit-overflow-scrolling: touch;
  }

  .site-nav__links .site-nav__it-link {
    display: flex;
    color: var(--color-ink);
  }
}