/* Arcframe — Layout */
.container {
  width: min(100% - var(--gutter) * 2, var(--container));
  margin-inline: auto;
}
.narrow {
  width: min(100% - var(--gutter) * 2, 52rem);
  margin-inline: auto;
}
.section {
  padding-block: clamp(4.5rem, 10vw, 10rem);
  position: relative;
}
.section-sm {
  padding-block: clamp(2.8rem, 6vw, 5.5rem);
}
.section-rule {
  border-top: 1px solid var(--line);
}
.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 2rem);
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.grid-12 {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}
.stack > * + * {
  margin-top: var(--s-4);
}
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3);
}
.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-5);
}
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-nav);
  padding: 1rem 0;
}
.site-header:before {
  content: "";
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  opacity: 0;
  transition: opacity var(--fast);
}
.site-header.is-scrolled:before {
  opacity: 1;
  border-color: var(--line);
}
.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}
.brand-mark {
  width: 1.35rem;
  height: 1.35rem;
  border: 2px solid;
  border-radius: 50%;
  position: relative;
}
.brand-mark:after {
  content: "";
  position: absolute;
  inset: 25%;
  background: var(--accent);
  border-radius: 50%;
}
.desktop-nav,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.desktop-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--muted);
}
.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--text);
}
.menu-button {
  display: none;
}
.mobile-panel {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg);
  padding: 6.5rem var(--gutter) 2rem;
  transform: translateY(-105%);
  visibility: hidden;
  transition:
    transform var(--dur) var(--ease),
    visibility 0s var(--dur);
}
.mobile-panel.is-open {
  transform: none;
  visibility: visible;
  transition-delay: 0s;
}
.mobile-panel nav {
  display: grid;
}
.mobile-panel nav a {
  font-size: clamp(2rem, 9vw, 5rem);
  line-height: 1.05;
  text-decoration: none;
  border-top: 1px solid var(--line);
  padding: 0.42em 0;
}
.mobile-panel-meta {
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}
main {
  min-height: 72vh;
}
.hero {
  min-height: min(100svh, 62rem);
  display: grid;
  align-items: end;
  padding: clamp(8rem, 15vw, 13rem) 0 clamp(3rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.hero h1 {
  margin-bottom: var(--s-4);
  max-width: 13ch;
}
.hero-lede,
.page-hero .lede {
  font-size: var(--step-1);
  max-width: 48rem;
  color: var(--muted);
}
.hero-gridline {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: clamp(55px, 8vw, 130px) clamp(55px, 8vw, 130px);
  mask-image: linear-gradient(#000, transparent 95%);
}
.hero-orbit {
  position: absolute;
  width: min(58vw, 50rem);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  right: -8%;
  top: 5%;
}
.hero-orbit:before,
.hero-orbit:after {
  content: "";
  position: absolute;
  inset: 13%;
  border: 1px solid var(--line);
  border-radius: 50%;
}
.hero-orbit:after {
  inset: 31%;
  background: radial-gradient(circle, var(--accent), transparent 62%);
  opacity: 0.45;
}
.page-hero {
  padding: clamp(9rem, 16vw, 14rem) 0 clamp(4rem, 9vw, 8rem);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-hero h1 {
  max-width: 12ch;
  margin-bottom: 1.5rem;
}
.sticky-aside {
  position: sticky;
  top: 7rem;
  align-self: start;
}
.site-footer {
  padding: clamp(4rem, 9vw, 8rem) 0 2rem;
  border-top: 1px solid var(--line);
}
.footer-title {
  font-size: clamp(3rem, 10vw, 9rem);
  line-height: 0.82;
  letter-spacing: -0.07em;
  margin-bottom: 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.footer-bottom {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
}