.site-head {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.6rem);
  padding: clamp(.85rem, 1.7vw, 1.35rem) var(--gut);
  color: var(--offwhite);
  transition: background-color .4s var(--ease-brake), color .4s var(--ease-brake),
              box-shadow .4s var(--ease-brake), backdrop-filter .4s linear;
}
.site-head::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to bottom, rgba(8,32,42,.42), rgba(8,32,42,0));
  transition: opacity .4s linear;
}
.site-head.is-compact {
  background: rgba(250, 248, 242, .82);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  backdrop-filter: saturate(1.5) blur(14px);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--ink-08);
}
.site-head.is-compact::after { opacity: 0; }

/* --- wordmark ----------------------------------------------------------- */

.mark {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--display);
  font-size: 1.32rem;
  letter-spacing: -.03em;
  text-transform: uppercase;
  flex: none;
}
.mark__glyph { width: 26px; height: 26px; flex: none; overflow: visible; }
.mark__road {
  fill: none;
  stroke: currentColor;
  stroke-width: 3.4;
  stroke-linecap: round;
}
.mark__pin { fill: var(--sun); }
.mark__sub {
  font-family: var(--body);
  font-size: .58rem;
  font-weight: 800;
  letter-spacing: .26em;
  align-self: flex-end;
  padding-bottom: .3rem;
  opacity: .72;
}

/* --- navigation --------------------------------------------------------- */

.nav {
  display: none;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.1rem);
  margin-inline-start: auto;
}
.nav a {
  position: relative;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .17em;
  text-transform: uppercase;
  padding: .35rem 0;
}
/* the underline drives in from the left, like a road arriving */
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  height: 3px; width: 100%;
  border-radius: 2px;
  background: var(--sun);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .34s var(--ease-drive);
}
.nav a:hover::after, .nav a:focus-visible::after { transform: scaleX(1); }

.head-cta { margin-inline-start: auto; }
.nav + .head-cta { margin-inline-start: 0; }
.head-cta .btn { padding: .74rem 1.1rem; font-size: .73rem; }

.site-head:not(.is-compact) .head-cta .btn {
  --btn-bg: var(--sun);
  --btn-fg: var(--ink);
}

/* --- burger ------------------------------------------------------------- */

.burger {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  flex: none;
  border-radius: 50%;
  color: inherit;
  transition: background-color .3s linear;
}
.burger span {
  position: relative;
  width: 20px; height: 2.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .34s var(--ease-turn), opacity .2s linear;
}
.burger span::before, .burger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px; height: 2.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .34s var(--ease-turn);
}
.burger span::before { top: -7px; }
.burger span::after  { top: 7px; }

.burger[aria-expanded='true'] span { background: transparent; }
.burger[aria-expanded='true'] span::before { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded='true'] span::after  { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .nav { display: flex; }
  .burger { display: none; }
}

/* --- full screen menu --------------------------------------------------- */

.menu {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: var(--deep);
  color: var(--offwhite);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 6rem var(--gut) 2.4rem;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .62s var(--ease-drive);
  visibility: hidden;
}
html.is-menu-open .menu { clip-path: inset(0 0 0 0); visibility: visible; }

.menu__road {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: .5;
}
.menu__road path {
  fill: none;
  stroke: rgba(205, 239, 255, .34);
  stroke-width: 26;
  stroke-linecap: round;
}
.menu__road .dash {
  stroke: var(--sun);
  stroke-width: 3;
  stroke-dasharray: 18 24;
  opacity: .85;
  animation: menu-drift 2.4s linear infinite;
}
@keyframes menu-drift { to { stroke-dashoffset: -42; } }

.menu__list {
  position: relative;
  list-style: none;
  margin: 0 0 2.4rem;
  padding: 0;
  display: grid;
  gap: .3rem;
}
.menu__list a {
  font-family: var(--display);
  font-size: clamp(2.3rem, 12vw, 4.4rem);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: -.035em;
  display: inline-block;
  transform: translateX(-14%);
  opacity: 0;
  transition: transform .5s var(--ease-drive), opacity .35s linear;
}
html.is-menu-open .menu .menu__list a { transform: none; opacity: 1; }
html.is-menu-open .menu .menu__list li:nth-child(1) a { transition-delay: .10s; }
html.is-menu-open .menu .menu__list li:nth-child(2) a { transition-delay: .16s; }
html.is-menu-open .menu .menu__list li:nth-child(3) a { transition-delay: .22s; }
html.is-menu-open .menu .menu__list li:nth-child(4) a { transition-delay: .28s; }
html.is-menu-open .menu .menu__list li:nth-child(5) a { transition-delay: .34s; }

.menu__foot {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  font-size: var(--t-micro);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(250, 248, 242, .62);
}

@media (prefers-reduced-motion: reduce) {
  .menu { transition-duration: .01ms; }
  .menu__list a { transition-duration: .01ms; transform: none; }
  .menu__road .dash { animation: none; }
}