.site-header {
  position: sticky;
  top: 0;
  z-index: 201;
}

.site-header__bar {
  background: rgba(248, 248, 248, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 300ms ease, border-bottom-color 300ms ease;
}

.site-header.is-scrolled .site-header__bar {
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.07);
  border-bottom-color: transparent;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: var(--space-4);
}

.site-header__logo {
  display: block;
  flex-shrink: 0;
  line-height: 0;
  -webkit-tap-highlight-color: transparent;
}

.site-header__logo-img {
  display: block;
  width: auto;
  height: 2rem;
  max-width: min(12rem, 46vw);
}

.site-header__nav {
  display: none;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-header__nav-link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 3px;
  transition: color 200ms ease;
}

.site-header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms var(--ease-out);
}

.site-header__nav-link:hover {
  color: var(--color-primary);
}

.site-header__nav-link:hover::after,
.site-header__nav-link--active::after {
  transform: scaleX(1);
}

.site-header__nav-link--active {
  color: var(--color-primary);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__cta {
  display: none;
}

@media (min-width: 768px) {
  .btn--header-quote {
    gap: var(--space-3);
    padding-inline: var(--space-5) var(--space-4);
    background: var(--color-primary-container);
    border-color: var(--color-primary-container);
    color: var(--color-on-primary);
    box-shadow: 0 2px 12px rgba(19, 27, 46, 0.16);
  }

  .btn--header-quote:hover {
    background: var(--color-inverse);
    border-color: var(--color-inverse);
    box-shadow: 0 4px 16px rgba(19, 27, 46, 0.22);
  }

  .btn--header-quote .btn__icon {
    opacity: 0.88;
    transition: transform 220ms var(--ease-spring), opacity 200ms ease;
  }

  .btn--header-quote:hover .btn__icon {
    transform: translateX(4px);
    opacity: 1;
  }
}

.site-header__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  z-index: 1;
}

.site-header__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: transform 220ms ease, opacity 220ms ease;
}

.site-header__burger[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__burger[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}

.site-header__burger[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header__backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 199;
  background: rgba(19, 27, 46, 0.32);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  -webkit-tap-highlight-color: transparent;
}

.site-header__backdrop.is-visible {
  display: block;
}

.site-header__mobile-nav {
  display: none;
  flex-direction: column;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: var(--mobile-dock-height);
  z-index: 200;
  background: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(28px) saturate(165%);
  -webkit-backdrop-filter: blur(28px) saturate(165%);
  border-top: 3px solid var(--color-accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
  overflow: hidden;
  padding: var(--space-6) var(--gutter-mobile);
}

.site-header__mobile-nav.is-open {
  display: flex;
  animation: fadeDown 220ms var(--ease-out) both;
}

.site-header__mobile-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

.site-header__mobile-list {
  display: flex;
  flex-direction: column;
}

.site-header__mobile-link {
  display: flex;
  align-items: center;
  min-height: var(--touch-min);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(226, 232, 240, 0.72);
  transition: color 150ms ease, padding-left 150ms ease;
}

.site-header__mobile-link:hover {
  color: var(--color-accent);
  padding-left: var(--space-3);
}

.site-header__mobile-meta {
  flex-shrink: 0;
  margin-top: auto;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(226, 232, 240, 0.72);
}

.site-header__mobile-meta-label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.site-header__mobile-phone {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 5vw, var(--text-xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  -webkit-tap-highlight-color: transparent;
  transition: color 200ms ease;
}

.site-header__mobile-phone:active {
  color: var(--color-accent);
}

.site-header__mobile-secondary {
  display: flex;
  flex-direction: column;
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}

.site-header__mobile-secondary-link {
  display: flex;
  align-items: center;
  min-height: 2.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  border-bottom: 1px solid rgba(226, 232, 240, 0.72);
  -webkit-tap-highlight-color: transparent;
  transition: color 150ms ease, padding-left 150ms ease;
}

.site-header__mobile-secondary-link:active {
  color: var(--color-accent);
  padding-left: var(--space-2);
}

.site-header__mobile-dock {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-1);
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 202;
  padding: var(--space-3) var(--space-2);
  padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(36px) saturate(180%);
  -webkit-backdrop-filter: blur(36px) saturate(180%);
  border-top: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow:
    0 -10px 36px rgba(0, 0, 0, 0.07),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.site-header__mobile-dock-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: var(--touch-min);
  padding: var(--space-2) var(--space-1);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-align: center;
  text-wrap: balance;
  color: var(--color-text-muted);
  -webkit-tap-highlight-color: transparent;
  transition: color 150ms ease, transform 150ms var(--ease-spring);
}

.site-header__mobile-dock-item:active {
  transform: scale(0.96);
  color: var(--color-primary);
}

.site-header__mobile-dock-item--accent {
  color: var(--color-accent);
}

.site-header__mobile-dock-item--accent:active {
  color: var(--color-accent-hover);
}

.site-header__mobile-dock-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.site-header__mobile-dock-label {
  max-width: 6.5rem;
}

@media (min-width: 480px) {
  .site-header__mobile-dock {
    padding-inline: var(--gutter-mobile);
  }

  .site-header__mobile-dock-item {
    font-size: var(--text-xs);
  }

  .site-header__mobile-dock-label {
    max-width: none;
  }
}

body.is-menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

@media (max-width: 767px) {
  :root {
    --mobile-dock-height: calc(4.375rem + env(safe-area-inset-bottom, 0px));
  }

  body {
    padding-bottom: var(--mobile-dock-height);
  }
}

@media (min-width: 768px) {
  .site-header__nav {
    display: block;
  }

  .site-header__cta {
    display: inline-flex;
  }

  .site-header__burger {
    display: none;
  }

  .site-header__logo-img {
    height: 2.375rem;
    max-width: 14rem;
  }

  .site-header__backdrop,
  .site-header__mobile-nav,
  .site-header__mobile-dock {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__mobile-nav.is-open {
    animation: none;
  }
}