.shell {
  inline-size: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.shell--wide {
  inline-size: min(100% - 2rem, var(--container-wide));
}

.shell--narrow {
  max-inline-size: 52rem;
}

.section {
  position: relative;
  padding-block: var(--space-20);
}

.section--tight {
  padding-block: var(--space-12);
}

.section--flush-top {
  padding-block-start: 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-6);
  align-items: end;
  margin-block-end: var(--space-10);
}

.section-head__copy {
  max-inline-size: var(--measure-copy);
}

.section-head p {
  margin-block-start: var(--space-4);
  color: var(--muted-strong);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-space, var(--space-4));
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cluster-space, var(--space-3));
  align-items: center;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(var(--space-8), 6vw, var(--space-20));
  align-items: center;
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-header {
  position: sticky;
  z-index: var(--z-header);
  inset-block-start: 0;
  block-size: var(--header-height);
  border-block-end: 1px solid var(--line-faint);
  background: rgb(3 8 13 / 78%);
  -webkit-backdrop-filter: blur(1rem) saturate(1.2);
  backdrop-filter: blur(1rem) saturate(1.2);
}

.site-header::after {
  position: absolute;
  inset: auto 0 -1px;
  block-size: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-deep), transparent);
  content: "";
  opacity: 0.5;
}

.site-nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-8);
  align-items: center;
  block-size: 100%;
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  color: var(--paper);
  text-decoration: none;
}

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

.brand__mark {
  inline-size: 2rem;
  block-size: 2rem;
  filter: drop-shadow(0 0 0.7rem rgb(113 236 242 / 28%));
}

.brand__wordmark {
  inline-size: 7rem;
  block-size: auto;
}

.brand__text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
}

.site-menu {
  display: flex;
  gap: clamp(var(--space-4), 2vw, var(--space-8));
  align-items: center;
  justify-content: center;
}

.site-menu a {
  position: relative;
  padding-block: 0.45rem;
  color: var(--muted-strong);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-menu a::after {
  position: absolute;
  inset: auto 0 0;
  block-size: 1px;
  background: var(--cyan);
  content: "";
  opacity: 0;
  transform: scaleX(0);
  transition:
    opacity var(--duration) ease,
    transform var(--duration) var(--ease-out);
}

.site-menu a:hover,
.site-menu a[aria-current="page"],
.site-menu a[aria-current="location"] {
  color: var(--paper);
}

.site-menu a:hover::after,
.site-menu a[aria-current]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.nav-toggle {
  display: none;
}

.site-footer {
  position: relative;
  border-block-start: 1px solid var(--line);
  background: rgb(3 7 11 / 84%);
  padding-block: var(--space-16) var(--space-8);
}

.site-footer::before {
  position: absolute;
  inset: 0 0 auto;
  block-size: 5rem;
  background: linear-gradient(to bottom, rgb(113 236 242 / 4%), transparent);
  content: "";
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(15rem, 1.5fr) repeat(2, minmax(10rem, 0.65fr));
  gap: var(--space-12);
}

.footer-intro {
  max-inline-size: 32rem;
}

.footer-intro p {
  margin-block-start: var(--space-5);
  color: var(--muted);
}

.footer-nav h2 {
  margin-block-end: var(--space-4);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-nav a {
  color: var(--paper-soft);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--cyan-bright);
}

.footer-base {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
  border-block-start: 1px solid var(--line-faint);
  margin-block-start: var(--space-12);
  padding-block-start: var(--space-6);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}