.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-height: 64px;
  padding: var(--sp-1) var(--page-gutter);
  background: rgba(7, 5, 12, 0.84);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gold-line);
}

.site-mark {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-head);
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
}

.site-nav-list {
  display: flex;
  gap: 2px;
  padding: 0;
  list-style: none;
}

.site-nav-list a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--sp-2);
  color: var(--ivory-mid);
  font-size: var(--fs-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease;
}

.site-nav-list a::after {
  content: "";
  position: absolute;
  left: var(--sp-2);
  right: var(--sp-2);
  bottom: 8px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0.2);
  opacity: 0;
  transition: transform 200ms var(--ease-out), opacity 200ms ease;
}

@media (hover: hover) and (pointer: fine) {
  .site-nav-list a:hover {
    color: var(--ivory);
  }

  .site-nav-list a:hover::after {
    transform: scaleX(1);
    opacity: 1;
  }
}

@media (max-width: 1000px) {
  .site-nav {
    display: none;
  }

  .site-head .cut-button {
    margin-left: auto;
  }
}

.band-heading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  font-family: var(--font-head);
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.35;
  text-align: center;
}

.band-heading::before,
.band-heading::after {
  content: "";
  flex: 0 1 120px;
  min-width: 36px;
  height: 23px;
}

.band-heading > .keep {
  flex-shrink: 0;
}

.band-heading > span:not(.keep) {
  min-width: 5.5em;
}

@media (max-width: 360px) {
  .band-heading {
    gap: var(--sp-2);
  }

  .band-heading::before,
  .band-heading::after {
    min-width: 24px;
  }
}

.band-heading::before {
  background:
    linear-gradient(90deg, transparent, var(--gold)) left 70% / calc(100% - 22px) 1px no-repeat,
    var(--arch-mark) right center / 14px 23px no-repeat;
}

.band-heading::after {
  background:
    linear-gradient(270deg, transparent, var(--gold)) right 70% / calc(100% - 22px) 1px no-repeat,
    var(--arch-mark) left center / 14px 23px no-repeat;
}

.band-lead {
  max-width: 44em;
  margin: 0 auto;
  color: var(--ivory-mid);
  text-align: center;
}

.band-heading-start {
  justify-content: flex-start;
  text-align: left;
}

.band-heading-start {
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-2);
}

.band-heading-start::before {
  flex: 0 0 48px;
  background:
    linear-gradient(90deg, transparent, var(--gold)) left 70% / calc(100% - 22px) 1px no-repeat,
    var(--arch-mark) right center / 14px 23px no-repeat;
}

.band-heading-start::after {
  display: none;
}

.band-lead-start {
  margin: 0;
  text-align: left;
}