.site-header {
  position: sticky;
  z-index: 200;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgb(7 8 7 / 88%);
  backdrop-filter: blur(18px) saturate(120%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 2rem;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: clamp(.6rem, 2vw, 1.2rem);
}

.language-switch {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: .5rem;
  color: var(--paper-400);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
}

.language-switch span {
  display: grid;
  min-width: 30px;
  min-height: 30px;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--gold-300);
  font-family: var(--font-roman);
  font-size: .62rem;
}

.language-switch:hover {
  color: var(--paper-100);
}

.site-brand {
  position: relative;
  z-index: 205;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: .8rem;
  color: var(--paper-100);
  text-decoration: none;
  white-space: nowrap;
}

.site-brand:hover {
  color: var(--paper-100);
}

.brand-logo {
  position: relative;
  display: inline-grid;
  overflow: hidden;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgb(215 188 120 / 52%);
  border-radius: 50%;
  background: var(--ink-950);
  box-shadow: 0 7px 22px rgb(0 0 0 / 28%);
}

.brand-logo picture,
.brand-logo__image {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.brand-logo--header {
  width: 40px;
  height: 40px;
}

.brand-logo--navigation {
  width: clamp(52px, 5vw, 68px);
  height: clamp(52px, 5vw, 68px);
}

.brand-logo--footer {
  width: clamp(62px, 7vw, 80px);
  height: clamp(62px, 7vw, 80px);
}

.site-brand__wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: .65rem;
}

.site-brand__name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: .18em;
}

.site-brand__latin {
  color: var(--gold-300);
  font-family: var(--font-roman);
  font-size: .67rem;
  letter-spacing: .28em;
}

.nav-toggle,
.nav-close {
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle {
  position: relative;
  z-index: 205;
  display: none;
  gap: .7rem;
}

.nav-enhanced .nav-toggle {
  display: inline-flex;
}

/* The early head marker prevents the readable no-JS menu from shifting the page
   while the enhanced navigation script is still loading. */
html.js:not(.nav-enhanced) .site-nav {
  display: none;
}

.nav-toggle__seal {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--vermillion-400);
  background: rgb(165 43 35 / 18%);
  color: var(--paper-100);
  font-family: var(--font-serif);
  line-height: 1;
  transform: rotate(2deg);
  transition: border-radius 420ms var(--ease-film), transform 420ms var(--ease-film), background 420ms ease;
}

.nav-toggle__seal::before,
.nav-toggle__seal::after {
  position: absolute;
  width: 11px;
  height: 1px;
  background: var(--paper-100);
  content: "";
  opacity: 0;
  transition: transform 420ms var(--ease-film), opacity 220ms ease;
}

.nav-toggle__seal img,
.nav-toggle__seal picture {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-toggle__label {
  color: var(--paper-200);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
}

.nav-open .nav-toggle__seal {
  border-radius: 50%;
  background: var(--vermillion-500);
  transform: rotate(135deg);
}

.nav-open .nav-toggle__seal > * {
  opacity: 0;
}

.nav-open .nav-toggle__seal::before,
.nav-open .nav-toggle__seal::after {
  opacity: 1;
}

.nav-open .nav-toggle__seal::after {
  transform: rotate(90deg);
}

.site-nav__list,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__list a,
.footer-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--paper-400);
  font-size: .78rem;
  letter-spacing: .08em;
  text-decoration: none;
}

.site-nav__list a:hover,
.site-nav__list .current-menu-item > a {
  color: var(--paper-100);
}

/* The unenhanced navigation remains an ordinary, readable document section. */
html:not(.nav-enhanced) .site-header {
  position: relative;
  height: auto;
}

html:not(.nav-enhanced) .site-header__inner {
  min-height: var(--header-height);
}

html:not(.nav-enhanced) .nav-toggle,
html:not(.nav-enhanced) .nav-close,
html:not(.nav-enhanced) .site-nav__veil {
  display: none;
}

html:not(.nav-enhanced) .site-nav {
  padding-block: 1rem 2rem;
  border-top: 1px solid var(--line);
  background: var(--ink-950);
}

html:not(.nav-enhanced) .site-nav__masthead {
  margin-bottom: 1rem;
}

html:not(.nav-enhanced) .site-nav__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.4rem;
}

html:not(.nav-enhanced) .byobu-panels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

html:not(.nav-enhanced) .byobu-panel {
  min-height: 220px;
}

html:not(.nav-enhanced) .site-nav__utility {
  margin-top: 1rem;
}

.nav-enhanced .site-nav {
  position: fixed;
  z-index: 202;
  inset: 0;
  visibility: hidden;
  pointer-events: none;
}

.nav-enhanced .site-nav__veil {
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 76%);
  opacity: 0;
  transition: opacity 360ms ease;
}

.nav-enhanced .site-nav__screen {
  position: absolute;
  overflow: auto;
  inset: 0;
  padding: max(1.2rem, env(safe-area-inset-top)) 0 max(1.8rem, env(safe-area-inset-bottom));
  background:
    linear-gradient(110deg, rgb(255 255 255 / 2%) 0 1px, transparent 1px 25%),
    var(--ink-950);
  opacity: 0;
  transform: translateY(-18px);
  transition: opacity 380ms ease, transform 620ms var(--ease-film);
}

.nav-open .site-nav {
  visibility: visible;
  pointer-events: auto;
}

.nav-open .site-nav__veil,
.nav-open .site-nav__screen {
  opacity: 1;
}

.nav-open .site-nav__screen {
  transform: translateY(0);
}

.site-nav__masthead {
  display: flex;
  min-height: calc(var(--header-height) - 1rem);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-nav__identity {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(.9rem, 2vw, 1.4rem);
}

.site-nav__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  letter-spacing: .08em;
}

.site-nav__masthead .eyebrow {
  margin-bottom: .2rem;
}

.nav-close {
  display: inline-flex;
  gap: .65rem;
  color: var(--paper-200);
  font-size: .72rem;
  letter-spacing: .12em;
}

.nav-close > span:first-child {
  position: relative;
  display: block;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.nav-close > span:first-child::before,
.nav-close > span:first-child::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 13px;
  height: 1px;
  background: currentColor;
  content: "";
  transform: translate(-50%, -50%) rotate(45deg);
}

.nav-close > span:first-child::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.byobu-nav {
  padding-block: clamp(1.5rem, 4vh, 3.5rem);
}

.byobu-panels {
  display: grid;
  min-height: min(62vh, 660px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  perspective: 1400px;
  list-style: none;
}

.byobu-panel {
  position: relative;
  min-width: 0;
  border-block: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  background:
    linear-gradient(to bottom, rgb(7 8 7 / 34%), rgb(7 8 7 / 86%)),
    var(--byobu-image, linear-gradient(135deg, var(--ink-800), var(--ink-950)));
  background-position: center;
  background-size: cover;
  box-shadow: inset -12px 0 20px rgb(0 0 0 / 20%);
  transform-origin: left center;
}

.byobu-panel:last-child {
  border-right: 1px solid var(--line-strong);
}

.byobu-panel::before {
  position: absolute;
  inset: 7px;
  border: 1px solid rgb(241 234 216 / 10%);
  content: "";
  pointer-events: none;
}

.byobu-panel::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgb(255 255 255 / 3%), transparent 8%, transparent 90%, rgb(0 0 0 / 22%));
  content: "";
  pointer-events: none;
}

.byobu-panel > a,
.byobu-panel__search-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(1.3rem, 3vw, 2.6rem);
  color: var(--paper-100);
  text-align: center;
  text-decoration: none;
}

.byobu-panel > a {
  transition: background 260ms ease, color 260ms ease;
}

.byobu-panel > a:hover {
  background: rgb(165 43 35 / 15%);
  color: #fff;
}

.byobu-panel__number {
  position: absolute;
  top: 1.4rem;
  left: 1.4rem;
  color: var(--gold-300);
  font-family: var(--font-serif);
  font-size: .72rem;
}

.byobu-panel__icon {
  display: grid;
  width: clamp(58px, 6vw, 84px);
  aspect-ratio: 1;
  margin-bottom: 1.5rem;
  place-items: center;
  border: 1px solid var(--vermillion-400);
  background: rgb(165 43 35 / 18%);
  transform: rotate(-2deg);
}

.byobu-panel__icon picture,
.byobu-panel__icon-image {
  width: 100%;
  height: 100%;
}

.byobu-panel__icon-image {
  object-fit: contain;
}

.byobu-panel__icon-fallback {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3vw, 2.7rem);
}

.byobu-panel__label {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 2.25rem);
  letter-spacing: .12em;
  line-height: 1.3;
}

.byobu-panel small {
  margin-top: .7rem;
  color: var(--paper-400);
  font-size: .67rem;
  letter-spacing: .08em;
}

.byobu-search {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-top: 1.3rem;
}

.byobu-search input,
.byobu-search button {
  min-height: 44px;
  border: 1px solid var(--line-strong);
}

.byobu-search input {
  min-width: 0;
  padding: .45rem .7rem;
  background: rgb(7 8 7 / 72%);
  color: var(--paper-100);
}

.byobu-search button {
  padding-inline: .75rem;
  background: var(--vermillion-500);
  color: #fff;
  cursor: pointer;
}

.site-nav__utility {
  padding-bottom: 1rem;
}

.site-nav__utility .site-nav__list {
  justify-content: center;
}

@media (max-width: 960px) {
  .byobu-panels {
    min-height: 640px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .byobu-panel:nth-child(2) {
    border-right: 1px solid var(--line-strong);
  }

  .byobu-panel:nth-child(n + 3) {
    border-top: 0;
  }
}

@media (max-width: 600px) {
  .site-brand__latin,
  .nav-toggle__label {
    display: none;
  }

  .language-switch {
    gap: 0;
    font-size: 0;
  }

  .site-brand__name {
    font-size: 1.1rem;
  }

  .brand-logo--header {
    width: 38px;
    height: 38px;
  }

  .brand-logo--navigation {
    width: 46px;
    height: 46px;
  }

  .site-nav__masthead {
    min-height: 54px;
  }

  .site-nav__masthead .eyebrow {
    display: none;
  }

  .site-nav__title {
    font-size: 1.35rem;
  }

  .nav-close > span:last-child {
    display: none;
  }

  .byobu-nav {
    padding-block: 1rem;
  }

  .byobu-panels {
    min-height: 620px;
  }

  .byobu-panel > a,
  .byobu-panel__search-inner {
    padding: 1rem;
  }

  .byobu-panel__number {
    top: .8rem;
    left: .8rem;
  }

  .byobu-panel__icon {
    width: 52px;
    margin-bottom: .8rem;
  }

  .byobu-panel__label {
    font-size: 1.2rem;
  }

  .byobu-panel small {
    font-size: .6rem;
  }

  .byobu-search {
    grid-template-columns: 1fr;
    margin-top: .7rem;
  }

  .byobu-search button {
    border-top: 0;
  }

  html:not(.nav-enhanced) .byobu-panels {
    grid-template-columns: 1fr;
  }
}