.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: #fff;
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 1px 8px rgba(18, 45, 75, 0.07);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--header-height);

  max-width: var(--container-wide);
  padding-block: 0;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  text-decoration: none;
  flex-shrink: 0;

  padding: 2px;
  margin: -2px;
  border-radius: var(--radius-sm);
}

.site-header__logo-icon {
  width: var(--header-logo-size);
  height: var(--header-logo-size);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.site-header__logo-icon svg {
  display: block;
  width: var(--header-logo-size);
  height: var(--header-logo-size);
  max-width: var(--header-logo-size);
  flex-shrink: 0;
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1;
}

.site-header__brand {
  font-family: var(--font-display-decor);
  font-size: var(--header-poseidon-size);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: 0.34em;
  text-transform: uppercase;
  line-height: 1;
}

.site-header__subbrand {
  font-family: var(--font-display);
  font-size: var(--header-subbrand-size);
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  line-height: 1;
}

.site-header__tagline {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: var(--header-tagline-size);
  font-style: italic;
  font-weight: 400;
  color: var(--color-highlight);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  line-height: 1;
}

.site-header__tagline::before,
.site-header__tagline::after {
  content: "";
  flex: 1;
  min-width: 14px;
  height: 1px;
  background: var(--color-highlight);
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(var(--sp-3), 2.5vw, var(--sp-5));
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav__link {
  font-family: var(--font-body);
  font-size: var(--header-nav-size);
  font-weight: 600;
  color: var(--color-navy);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  position: relative;
  padding-block: var(--sp-2);
  transition: color var(--transition-fast);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-highlight);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-highlight);
  text-decoration: none;
  outline: none;
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after,
.site-nav__link.is-active::after {
  transform: scaleX(1);
}

.site-nav__link.is-active {
  color: var(--color-navy);
  font-weight: 800;
}

.site-header__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--header-cta-padding-y) var(--header-cta-padding-x);
  border: 2px solid var(--color-highlight);
  background: var(--color-highlight);
  color: #fff;
  border-radius: var(--btn-radius);
  font-family: var(--font-body);
  font-size: var(--header-cta-font-size);
  font-weight: var(--header-cta-font-weight);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;

  transition: background var(--transition), border-color var(--transition), transform var(--transition-fast);
}

.site-header__cta-icon {
  flex-shrink: 0;
  display: block;
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
  background: var(--color-brown);
  border-color: var(--color-brown);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  outline-color: var(--color-highlight);
}

.site-header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: auto;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition:
    transform var(--transition),
    opacity   var(--transition);
}

.site-header--open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header--open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.site-header--open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 768px) and (max-width: 1439px) {

  .site-header__inner {
    height: auto;
    min-height: 120px;
    padding-block: var(--sp-3);
  }

  .site-nav {
    min-width: 0;
  }

  .site-nav__list {
    flex-wrap: wrap;
    justify-content: center;
    row-gap: var(--sp-2);
  }
}

@media (min-width: 768px) and (max-width: 899px) {
  .site-header__cta {
    display: none;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    height: 84px;
    gap: var(--sp-3);
  }

  .site-header__logo-icon,
  .site-header__logo-icon svg {
    width: 50px;
    height: 50px;
    max-width: 50px;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow);

    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
  }

  .site-header--open .site-nav {
    max-height: 360px;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: var(--sp-3);
  }

  .site-nav__link {
    display: block;
    padding: var(--sp-3) var(--gutter);
    font-size: var(--fs-sm);
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link.is-active,
  .site-nav__link:hover {
    background: var(--color-bg-alt);
  }

  .site-header__cta {
    display: none;
  }

  .site-header__hamburger {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hamburger-line,
  .site-nav {
    transition: none;
  }
}