.site-header {
  position: relative;
  z-index: 80;
  background: var(--color-midnight);
  color: var(--color-soft-ice);
}

.site-header__utility {
  height: 2rem;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-dark);
  background: color-mix(in srgb, var(--color-midnight) 88%, var(--color-luminous-violet));
}

.site-header__utility-scroll {
  display: flex;
  width: min(100% - (2 * var(--gutter)), var(--container-max));
  height: 100%;
  margin-inline: auto;
  align-items: center;
  gap: var(--space-5);
  white-space: nowrap;
}

.site-header__utility a {
  color: var(--color-text-on-dark-muted);
  font-size: var(--text-utility);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--duration-fast) var(--ease-out);
}

.site-header__utility a:hover,
.site-header__utility a:focus-visible { color: var(--color-electric-cyan); }

.site-header__main { min-height: 5.5rem; }

.site-header__inner {
  display: grid;
  min-height: 5.5rem;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(var(--space-3), 2vw, var(--space-5));
}

.site-header__desktop-nav { min-width: 0; }
.site-header__desktop-nav ul,
.site-header__drawer-list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-header__desktop-nav li,
.site-header__drawer-list li,
.site-header__desktop-nav li + li,
.site-header__drawer-list li + li { margin: 0; padding: 0; }
.site-header__desktop-nav ul { align-items: center; gap: clamp(var(--space-3), 2vw, var(--space-5)); }
.site-header__desktop-nav--right ul { justify-content: flex-end; }

.site-header__desktop-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--color-soft-ice);
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.site-header__desktop-nav a:hover,
.site-header__desktop-nav a:focus-visible { border-color: var(--color-electric-cyan); color: var(--color-electric-cyan); }

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  justify-self: center;
  gap: var(--space-2);
  color: var(--color-white);
  text-decoration: none;
  white-space: nowrap;
}
.site-header__logo { width: 2.875rem; height: 2.875rem; flex: 0 0 2.875rem; object-fit: contain; }
.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-heading);
  line-height: 1;
}
.site-header__contact { min-height: 2.625rem; padding-inline: var(--space-3); white-space: nowrap; }
.site-header__toggle { display: none; }
.site-header__overlay,
.site-header__drawer { display: none; }

@media (max-width: 62rem) {
  .site-header__main,
  .site-header__inner { min-height: 4.25rem; }
  .site-header__inner { display: flex; justify-content: space-between; gap: var(--space-4); }
  .site-header__desktop-nav,
  .site-header__contact { display: none; }
  .site-header__logo { width: 2.25rem; height: 2.25rem; flex-basis: 2.25rem; }
  .site-header__brand-text { font-size: 1.1rem; }
  .site-header__toggle {
    display: grid;
    width: 2.75rem;
    height: 2.75rem;
    flex: 0 0 2.75rem;
    place-content: center;
    gap: 0.28rem;
    padding: 0;
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-soft-ice);
    transition: border-color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
  }
  .site-header__toggle:hover,
  .site-header__toggle[aria-expanded="true"] { border-color: var(--color-electric-cyan); background: color-mix(in srgb, var(--color-electric-cyan) 10%, transparent); }
  .site-header__toggle-line { display: block; width: 1.2rem; height: 1px; background: currentColor; transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: translateY(0.38rem) 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(-0.38rem) rotate(-45deg); }
  .site-header__overlay { position: fixed; z-index: 90; inset: 0; background: rgba(4, 10, 24, 0.64); opacity: 0; transition: opacity var(--duration-drawer) var(--ease-out); }
  .site-header__overlay.is-open { display: block; opacity: 1; }
  .site-header__drawer {
    position: fixed;
    z-index: 100;
    inset: 0 0 0 auto;
    display: flex;
    width: min(100%, 36rem);
    min-height: 100dvh;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
    padding: var(--space-6);
    background: var(--color-midnight);
    color: var(--color-soft-ice);
    opacity: 0;
    pointer-events: none;
    transform: translateX(1rem);
    transition: opacity var(--duration-drawer) var(--ease-out), transform var(--duration-drawer) var(--ease-out);
  }
  .site-header__drawer.is-open { opacity: 1; pointer-events: auto; transform: translateX(0); }
  .site-header__drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: var(--space-6); border-bottom: 1px solid var(--color-border-dark); }
  .site-header__drawer-label { color: var(--color-electric-cyan); font-size: var(--text-utility); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-label); text-transform: uppercase; }
  .site-header__drawer-close { position: relative; width: 2.75rem; height: 2.75rem; border: 1px solid var(--color-border-dark); border-radius: var(--radius-sm); background: transparent; color: var(--color-soft-ice); }
  .site-header__drawer-close span { position: absolute; top: 50%; left: 50%; width: 1.2rem; height: 1px; background: currentColor; }
  .site-header__drawer-close span:first-child { transform: translate(-50%, -50%) rotate(45deg); }
  .site-header__drawer-close span:last-child { transform: translate(-50%, -50%) rotate(-45deg); }
  .site-header__drawer-list { display: grid; gap: var(--space-2); padding-block: var(--space-6); }
  .site-header__drawer-list a { display: flex; min-height: 3rem; align-items: center; border-bottom: 1px solid var(--color-border-dark); color: var(--color-soft-ice); font-family: var(--font-heading); font-size: clamp(1.3rem, 5vw, 1.75rem); font-weight: var(--weight-medium); letter-spacing: var(--tracking-heading); line-height: 1.15; text-decoration: none; }
  .site-header__drawer-list a:hover,
  .site-header__drawer-list a:focus-visible { color: var(--color-electric-cyan); }
  .site-header__drawer-contact { display: grid; gap: var(--space-2); margin-top: auto; padding-top: var(--space-6); border-top: 1px solid var(--color-border-dark); }
  .site-header__drawer-contact a { color: var(--color-text-on-dark-muted); font-size: var(--text-small); text-decoration: none; }
}

@media (max-width: 47.99rem) {
  .site-header__utility-scroll { width: 100%; overflow-x: auto; padding-inline: var(--gutter); scrollbar-width: none; }
  .site-header__utility-scroll::-webkit-scrollbar { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__drawer,
  .site-header__overlay,
  .site-header__toggle-line { transform: none; }
}