.site-header {
  position: fixed;
  z-index: 80;
  inset: 0 0 auto;
  color: var(--color-chalk-white);
  transition: color var(--transition-fast);
}

.site-header__notice {
  display: flex;
  align-items: center;
  min-height: 28px;
  padding-inline: max(var(--gutter), calc((100vw - var(--container-max)) / 2));
  background: var(--color-chalk-white);
  color: var(--color-graphite);
  font-size: var(--text-technical);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.2;
}

.site-header__bar {
  border-block-end: 1px solid rgb(241 239 232 / 35%);
  background: var(--color-graphite);
  transition: min-height var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 1.8vw, 2rem);
  width: min(100% - (var(--gutter) * 2), var(--container-max));
  min-height: 76px;
  margin-inline: auto;
  transition: min-height var(--transition-fast);
}

.site-header__brand,
.site-header__menu-brand {
  display: inline-flex;
  flex: 0 1 190px;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: inherit;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.04em;
  line-height: 1;
  text-decoration: none;
}

.site-header__logo {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  object-fit: contain;
}

.site-header__brand-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.site-header__nav { min-width: 0; }
.site-header__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.55rem, 1.25vw, 1.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-header__links li,
.site-header__links .site-header__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  white-space: nowrap;
  color: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
}
.site-header__links a::after {
  width: 0;
  height: 1px;
  position: absolute;
  bottom: 7px;
  left: 0;
  background: var(--color-oxidized-copper);
  content: "";
  transition: width var(--transition-fast);
}
.site-header__links a { position: relative; }
.site-header__links a:hover::after,
.site-header__links a:focus-visible::after { width: 100%; }

.site-header__cta,
.site-header__mobile-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  flex: 0 0 auto;
  padding: 12px 16px;
  border: 1px solid var(--color-oxidized-copper);
  background: var(--color-oxidized-copper);
  color: var(--color-chalk-white);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.site-header__cta:hover,
.site-header__mobile-cta:hover { border-color: var(--color-graphite); background: var(--color-graphite); color: var(--color-chalk-white); }
.site-header__toggle,
.site-header__nav-head,
.site-header__mobile-cta,
.site-header__mobile-only { display: none; }

.site-header.is-compact { color: var(--color-graphite); }
.site-header.is-compact .site-header__bar { border-color: var(--color-concrete-grey); background: var(--color-chalk-white); }
.site-header.is-compact .site-header__inner { min-height: 60px; }
.site-header.is-compact .site-header__logo { width: 34px; height: 34px; flex-basis: 34px; }
.site-header.is-compact .site-header__cta:hover { border-color: var(--color-graphite); background: var(--color-graphite); }
.site-header__spacer { height: 104px; }

@media (max-width: 1120px) {
  .site-header__inner { gap: 16px; }
  .site-header__brand { flex-basis: 164px; }
  .site-header__links { gap: 10px; }
  .site-header__links a { font-size: 13px; }
  .site-header__cta { padding-inline: 13px; }
}

@media (max-width: 899px) {
  .site-header__inner { min-height: 68px; justify-content: space-between; }
  .site-header__brand { flex: 1 1 auto; }
  .site-header__cta { display: none; }
  .site-header__toggle {
    display: inline-flex;
    flex: 0 0 44px;
    width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    padding: 0;
    border: 1px solid currentcolor;
    background: transparent;
    color: inherit;
  }
  .site-header__toggle-line { width: 19px; height: 1px; background: currentcolor; transition: transform var(--transition-menu), opacity var(--transition-menu); }
  .site-header__nav {
    display: flex;
    visibility: hidden;
    overflow-y: auto;
    position: fixed;
    z-index: 90;
    inset: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 24px max(var(--gutter), calc((100vw - var(--container-max)) / 2)) 32px;
    background: var(--color-graphite);
    color: var(--color-chalk-white);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity var(--transition-menu), transform var(--transition-menu), visibility var(--transition-menu);
  }
  .site-header__nav.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-header__nav-head { display: flex; position: relative; z-index: 1; align-items: center; justify-content: space-between; gap: 16px; }
  .site-header__menu-brand { flex: 0 1 auto; font-size: 20px; }
  .site-header__menu-brand img { width: 56px; height: 56px; object-fit: contain; }
  .site-header__menu-close { min-height: 44px; padding: 0 12px; border: 1px solid var(--color-concrete-grey); background: transparent; color: inherit; font-size: 14px; }
  .site-header__links { display: flex; position: relative; z-index: 1; align-items: flex-start; justify-content: center; flex: 1 0 auto; flex-direction: column; gap: 0; width: 100%; margin: clamp(36px, 8vh, 80px) 0 24px; }
  .site-header__links li,
  .site-header__mobile-only { display: block; }
  .site-header__links a { min-height: 0; padding-block: 5px; font-family: var(--font-heading); font-size: clamp(2rem, 7vw, 4.2rem); font-weight: 600; letter-spacing: -.06em; line-height: .96; }
  .site-header__links a::after { bottom: 0; }
  .site-header__mobile-cta { display: inline-flex; position: relative; z-index: 1; align-self: flex-start; width: 100%; }
  .site-header__toggle[aria-expanded="true"] { position: relative; z-index: 91; border-color: var(--color-chalk-white); color: var(--color-chalk-white); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) { opacity: 0; }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .site-header.is-compact .site-header__inner { min-height: 56px; }
  .site-header__spacer { height: 96px; }
}

@media (max-width: 719px) {
  .site-header__notice { padding-inline: var(--gutter); font-size: 11px; white-space: nowrap; overflow: hidden; }
  .site-header__brand { gap: 10px; font-size: 16px; }
  .site-header__logo { width: 34px; height: 34px; flex-basis: 34px; }
  .site-header__spacer { height: 96px; }
}

@media (prefers-reduced-motion: reduce) { .site-header, .site-header *, .site-header *::after { transition: none; } }