/* Header: desktop navigation and mobile header controls. */

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  height: 68px;
  --header-ink: #f6f2e9;
  --header-muted: rgba(246, 242, 233, .73);
  --header-hover: #ffffff;
  --header-line: rgba(246, 242, 233, .39);
  color: var(--header-ink);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: color 280ms ease, background-color 280ms ease, border-color 280ms ease;
}

/* Two independent overlays keep photographic colours visible underneath. */
.site-header::before,
.site-header::after {
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  left: 0;
  height: calc(100% + 42px);
  pointer-events: none;
  content: "";
  transition: opacity 320ms ease;
}

.site-header::before {
  opacity: 1;
  background: linear-gradient(180deg,
    rgba(23, 31, 29, .93) 0%,
    rgba(23, 31, 29, .77) 42%,
    rgba(23, 31, 29, .30) 72%,
    rgba(23, 31, 29, 0) 100%);
}

.site-header::after {
  opacity: 0;
  background: linear-gradient(180deg,
    rgba(247, 244, 238, .97) 0%,
    rgba(247, 244, 238, .88) 42%,
    rgba(247, 244, 238, .40) 72%,
    rgba(247, 244, 238, 0) 100%);
}

/* The active section chooses the contrast scheme, not pixel sampling. */
.site-header[data-tone="light"] {
  --header-ink: #303a33;
  --header-muted: #697469;
  --header-hover: #111f18;
  --header-line: rgba(48, 58, 51, .28);
}

.site-header[data-tone="light"]::before { opacity: 0; }
.site-header[data-tone="light"]::after { opacity: 1; }


.site-header__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  width: min(91%, 1500px);
  height: 100%;
  margin-inline: auto;
}

.site-header__brand {
  justify-self: start;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -.035em;
  font: italic 400 30px/1 Constantia, "Palatino Linotype", Georgia, serif;
}

.site-header a:focus-visible,
.site-header button:focus-visible {
  outline: 2px solid #86977f;
  outline-offset: 4px;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(28px, 3.15vw, 50px);
}

.site-header__nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--header-ink);
  font: 400 16px/1.3 "Sitka Heading", "Sitka", Georgia, serif;
  transition: color 200ms ease;
}

.site-header__nav a::after {
  content: "";
  position: absolute;
  bottom: 7px;
  left: 50%;
  right: 50%;
  height: 1px;
  background: var(--header-ink);
  transition: left 220ms ease, right 220ms ease;
}

.site-header__nav a:hover,
.site-header__nav a:focus-visible {
  color: var(--header-hover);
}

.site-header__nav a:hover::after,
.site-header__nav a:focus-visible::after {
  left: 0;
  right: 0;
}

.site-header__actions {
  display: flex;
  gap: 19px;
  align-items: center;
  justify-self: end;
}

.language-switch {
  display: inline-flex;
  gap: 10px;
  align-items: center;
}

.language-switch__button {
  border: 0;
  background: transparent;
  padding: 8px 2px;
  color: var(--header-muted);
  cursor: pointer;
  font: 500 14px/1 "Sitka Heading", "Sitka", Georgia, serif;
  transition: color 200ms ease;
}

.language-switch__button:hover {
  color: var(--header-hover);
}

.language-switch__button.is-current {
  color: var(--header-ink);
}

.language-switch__divider {
  height: 14px;
  width: 1px;
  background: var(--header-line);
}

.site-header__login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 37px;
  min-width: 86px;
  padding: 0 19px;
  border: 1px solid var(--header-line);
  border-radius: 24px;
  background: transparent;
  color: var(--header-ink);
  cursor: pointer;
  font: 500 15px/1 "Sitka Heading", "Sitka", Georgia, serif;
  transition: background-color 220ms ease, border-color 220ms ease;
}

.site-header__login:hover {
  background: rgba(128, 139, 122, .15);
  border-color: var(--header-ink);
}

.site-header__account,
.site-header__burger {
  display: none;
}

@media (max-width: 1080px) {
  .site-header__inner {
    width: 94%;
    gap: 12px;
  }

  .site-header__brand {
    font-size: 27px;
  }

  .site-header__nav {
    gap: 22px;
  }

  .site-header__nav a {
    font-size: 15px;
  }

  .site-header__actions {
    gap: 12px;
  }
}

@media (max-width: 900px) {
  .site-header {
    height: 64px;
  }

  /* Keep the agreed two-level menu on a solid, readable header. */
  .site-header.is-menu-open {
    --header-ink: #303a33;
    --header-muted: #697469;
    --header-hover: #111f18;
    --header-line: rgba(48, 58, 51, .28);
    background: #f6f3ed;
    border-bottom-color: rgba(57, 68, 56, .1);
  }

  .site-header.is-menu-open::before,
  .site-header.is-menu-open::after {
    opacity: 0;
  }

  .site-header__inner {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin: 0;
    padding-inline: clamp(15px, 4.5vw, 28px);
    gap: 5px;
  }

  .site-header__brand {
    font-size: clamp(23px, 5.8vw, 30px);
  }

  .site-header__nav,
  .site-header__login,
  .language-switch--desktop {
    display: none;
  }

  .site-header__actions {
    gap: 4px;
  }

  .site-header__account,
  .site-header__burger {
    position: relative;
    display: inline-flex;
    flex: 0 0 44px;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--header-ink);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 250ms ease;
  }

  .site-header__account svg {
    width: 21px;
    height: 21px;
  }

  .site-header__account:hover,
  .site-header__burger:hover {
    background: rgba(127, 139, 123, .14);
  }

  .site-header__burger-line {
    position: absolute;
    display: block;
    width: 21px;
    height: 1.5px;
    border-radius: 2px;
    background: currentColor;
    transition: transform 360ms cubic-bezier(.22,1,.36,1), opacity 190ms ease;
  }

  .site-header__burger-line:nth-child(1) {
    transform: translateY(-6px);
  }

  .site-header__burger-line:nth-child(2) {
    transform: translateY(0);
  }

  .site-header__burger-line:nth-child(3) {
    transform: translateY(6px);
  }

  .site-header.is-menu-open .site-header__burger-line:nth-child(1) {
    transform: rotate(45deg);
  }

  .site-header.is-menu-open .site-header__burger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }

  .site-header.is-menu-open .site-header__burger-line:nth-child(3) {
    transform: rotate(-45deg);
  }

  html:not(.js) .site-header__burger {
    display: none;
  }
}

@media (max-width: 360px) {
  .site-header__inner {
    padding-inline: 11px;
  }

  .site-header__brand {
    font-size: 23px;
  }

  .site-header__actions {
    gap: 0;
  }

  .site-header__account,
  .site-header__burger {
    flex-basis: 40px;
    width: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .site-header::before,
  .site-header::after,
  .site-header__nav a,
  .site-header__nav a::after,
  .site-header__account,
  .site-header__burger,
  .site-header__burger-line {
    transition-duration: 0s;
  }
}