/* Announcement bar and sticky site header: a thin dark bar above a light, plain header. */
.announce {
  position: relative;
  display: flex;
  align-items: center;
  min-height: var(--announce-h);
  padding-inline: var(--inset);
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.announce__text {
  position: relative;
  z-index: 1;
  font: 400 var(--fs-small)/1.5 var(--sans);
  letter-spacing: -0.02em;
}
.announce__text strong { font-weight: 650; }
.announce__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 6px;
  font-weight: 650;
  text-decoration: none;
}
.announce__link:hover { text-decoration: underline; text-underline-offset: 3px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  color: var(--ink);
  border-bottom: 1px solid var(--mist);
}
/* Wordmark on the left; navigation and actions grouped together on the right. */
.site-header__bar {
  display: flex;
  align-items: center;
  gap: 32px;
  height: var(--header-h);
  padding-inline: var(--inset);
}

.wordmark {
  display: inline-flex;
  margin-right: auto;
  font: 300 27px/1 var(--sans);
  letter-spacing: -0.045em;
  color: inherit;
  text-decoration: none;
}
.wordmark span { display: inline-block; }

.primary-nav__list { display: flex; gap: 24px; }
.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 0;
  color: var(--ink-2);
  font: 450 15px/1 var(--sans);
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .15s var(--ease-std);
}
.nav-item:hover, .nav-item:focus-visible, .nav-item[aria-expanded="true"] { color: var(--ink); }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-left: 24px;
  border-left: 1px solid var(--mist);
}
/* In the header, search is a square icon button; its name comes from aria-label. */
.site-header__actions .search-field { width: 38px; height: 38px; padding: 0; justify-content: center; border: 1px solid var(--mist); border-radius: 4px; background: none; }
.site-header .link-arrow--light { color: var(--ink); }
.site-header__cta { min-height: 38px; padding: 0 14px; font-size: 14px; }

.search-field {
  display: flex;
  align-items: center;
  gap: 8px;
  width: clamp(168px, 18vw, 270px);
  height: 32px;
  padding: 0 9px;
  background: var(--paper);
  color: var(--ink-2);
  font: 400 var(--fs-ui)/1 var(--sans);
  letter-spacing: -0.02em;
  text-align: left;
}
.search-field__icon {
  width: 14px;
  height: 14px;
  flex: none;
  background: var(--ink);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Ccircle cx='6' cy='6' r='4.8' fill='none' stroke='black' stroke-width='1.2'/%3E%3Cpath d='m9.6 9.6 3.8 3.8' stroke='black' stroke-width='1.2'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Ccircle cx='6' cy='6' r='4.8' fill='none' stroke='black' stroke-width='1.2'/%3E%3Cpath d='m9.6 9.6 3.8 3.8' stroke='black' stroke-width='1.2'/%3E%3C/svg%3E") center / contain no-repeat;
}
.search-field__text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.menu-button {
  display: none;
  align-items: stretch;
  height: 38px;
  border: 1px solid var(--mist);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  font: 450 15px/1 var(--sans);
  letter-spacing: -0.02em;
}
.menu-button__label { display: flex; align-items: center; padding: 0 10px; }
.menu-button__rule { align-self: center; width: 1px; height: 24px; background: currentColor; opacity: .22; }
.menu-button__icon { position: relative; width: 32px; }
.menu-button__icon::before, .menu-button__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 13px;
  height: 1.2px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform .3s var(--ease-out);
}
.menu-button__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.menu-button[aria-expanded="true"] { background: var(--ink); color: var(--paper); }
.menu-button[aria-expanded="true"] .menu-button__icon::after { transform: translate(-50%, -50%) rotate(0deg); }

@media (max-width: 1099px) {
  .site-header__bar { gap: 18px; }
  .primary-nav__list { gap: 16px; }
  .site-header__actions { gap: 12px; padding-left: 16px; }
  .site-header__contact { display: none; }
}

@media (max-width: 767px) {
  .wordmark { font-size: 25px; }
  .primary-nav, .site-header__actions .search-field, .site-header__cta { display: none; }
  .site-header__actions { padding-left: 0; border-left: 0; }
  .menu-button { display: inline-flex; }
  .site-header.is-shelf-open { background: var(--paper); color: var(--ink); }
}