.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  min-height: 5.5rem;
  pointer-events: none;
}

.site-header::after {
  display: block;
  height: 5.5rem;
  content: "";
}

.site-header__shell {
  width: min(100% - (2 * var(--container-padding)), var(--container-max));
  margin-inline: auto;
  padding-top: var(--space-4);
  pointer-events: auto;
}

.site-header__bar {
  display: grid;
  grid-template-columns: minmax(10rem, 1fr) auto minmax(10rem, 1fr);
  align-items: center;
  min-height: 4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-cobalt-blue);
  transition: background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header .site-header__bar,
.site-header:not(.site-header--menu-open) .site-header__bar:hover {
  border-color: var(--color-line-blue);
  background: rgb(247 245 239 / 94%);
  box-shadow: var(--shadow-floating);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  min-width: 0;
  gap: var(--space-2);
  color: var(--color-cobalt-blue);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
  text-decoration: none;
}

.site-header__mark {
  width: 2rem;
  height: 2rem;
  flex: 0 0 2rem;
  object-fit: contain;
  animation: site-header-mark-orbit 6s linear infinite;
}

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

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

.site-header__navigation-inner {
  min-width: 0;
}

.site-header__primary-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.25vw, 1.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__primary-list li,
.site-header__primary-list li + li {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.site-header__primary-list a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-cobalt-blue);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__primary-list a::after {
  position: absolute;
  right: 0;
  bottom: 0.45rem;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.site-header__primary-list a {
  position: relative;
}

.site-header__primary-list a:hover::after,
.site-header__primary-list a:focus-visible::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-self: end;
  gap: var(--space-3);
}

.site-header__location {
  color: var(--color-cobalt-blue);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__location span { color: var(--color-coral); }

.site-header__cta {
  flex: 0 0 auto;
  white-space: nowrap;
}

.site-header__toggle,
.site-header__mobile-meta,
.site-header__mobile-only {
  display: none;
}

.site-header-menu-open {
  overflow: hidden;
}

@keyframes site-header-mark-orbit {
  to { transform: rotate(360deg); }
}

@media (max-width: 74.99rem) {
  .site-header {
    min-height: 4.75rem;
  }

  .site-header::after { height: 4.75rem; }

  .site-header__shell { padding-top: var(--space-3); }

  .site-header__bar {
    display: flex;
    justify-content: space-between;
    min-height: 3.5rem;
    border-color: var(--color-line-blue);
    background: rgb(247 245 239 / 96%);
    box-shadow: var(--shadow-floating);
    padding-inline: var(--space-3);
  }

  .site-header__mark {
    width: 1.875rem;
    height: 1.875rem;
    flex-basis: 1.875rem;
  }

  .site-header__brand { font-size: 0.875rem; }

  .site-header__actions { display: none; }

  .site-header__toggle {
    display: grid;
    width: 2.75rem;
    height: 2.75rem;
    flex: 0 0 2.75rem;
    align-content: center;
    justify-content: center;
    gap: 0.25rem;
    border: 1px solid var(--color-cobalt-blue);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-cobalt-blue);
    padding: 0;
  }

  .site-header__toggle-line {
    display: block;
    width: 1.125rem;
    height: 1px;
    background: currentColor;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .site-header--menu-open .site-header__toggle-line:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .site-header--menu-open .site-header__toggle-line:nth-child(2) { opacity: 0; }
  .site-header--menu-open .site-header__toggle-line:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

  .site-header__navigation {
    position: fixed;
    z-index: -1;
    inset: 0;
    display: block;
    visibility: hidden;
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--color-porcelain-white);
    opacity: 0;
    padding: 6.75rem var(--container-padding) max(2rem, env(safe-area-inset-bottom));
    pointer-events: none;
    transition: opacity var(--transition-base), visibility var(--transition-base);
  }

  .site-header--menu-open .site-header__navigation {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }

  .site-header__navigation-inner {
    display: grid;
    width: min(100%, 42rem);
    margin-inline: auto;
    gap: var(--space-6);
  }

  .site-header__primary-list {
    display: grid;
    gap: var(--space-3);
  }

  .site-header__primary-list li,
  .site-header__primary-list li + li {
    display: block;
  }

  .site-header__primary-list a {
    display: grid;
    grid-template-columns: 2.5rem minmax(0, 1fr);
    align-items: end;
    min-height: 6rem;
    border: var(--border-default);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-cobalt-blue);
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1;
    padding: var(--space-4);
    white-space: normal;
  }

  .site-header__primary-list li:nth-child(2n) a { background: var(--color-sandstone); }
  .site-header__primary-list li:nth-child(3n) a { background: rgb(184 201 234 / 35%); }
  .site-header__primary-list a::after { display: none; }
  .site-header__primary-list li:nth-child(-n + 5) a::before {
    color: var(--color-muted-blue);
    font-family: var(--font-body);
    font-size: var(--font-size-label);
    font-weight: 700;
    letter-spacing: var(--tracking-label);
  }
  .site-header__primary-list li:nth-child(1) a::before { content: "01"; }
  .site-header__primary-list li:nth-child(2) a::before { content: "02"; }
  .site-header__primary-list li:nth-child(3) a::before { content: "03"; }
  .site-header__primary-list li:nth-child(4) a::before { content: "04"; }
  .site-header__primary-list li:nth-child(5) a::before { content: "05"; }
  .site-header__mobile-only { display: block; }
  .site-header__mobile-only span {
    color: var(--color-muted-blue);
    font-family: var(--font-body);
    font-size: var(--font-size-label);
    font-weight: 700;
    letter-spacing: var(--tracking-label);
  }

  .site-header__mobile-meta {
    display: grid;
    gap: var(--space-4);
    padding-bottom: var(--space-6);
  }

  .site-header__mobile-meta p {
    margin: 0;
    color: var(--color-muted-blue);
    font-size: var(--font-size-body-s);
    text-align: center;
  }
}

@media (max-width: 23rem) {
  .site-header__brand-name { font-size: 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__mark { animation: none; }
}