:root {
  color-scheme: light;
  --porcelain: #f4efe7;
  --paper: #fbf8f1;
  --ink: #211f1b;
  --quiet: #6f6a61;
  --line: rgba(33, 31, 27, 0.16);
  --plum: #79566f;
  --clay: #b76f55;
  --sage: #687a67;
  --blue: #526f83;
  --instrument: #171817;
  --instrument-line: rgba(255, 255, 255, 0.14);
  --instrument-ink: #f7f2e8;
  --radius: 26px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--porcelain);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  line-height: 1.55;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -10%, rgba(183, 111, 85, 0.16), transparent 34rem),
    radial-gradient(circle at 96% 8%, rgba(82, 111, 131, 0.14), transparent 32rem),
    var(--porcelain);
}

a {
  color: inherit;
}

.shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--quiet);
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: clamp(36px, 8vw, 96px);
  align-items: center;
  padding: clamp(64px, 10vw, 126px) 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--clay);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(48px, 8vw, 86px);
  line-height: 0.98;
  font-weight: 500;
}

.lede {
  max-width: 640px;
  margin: 28px 0 0;
  color: var(--quiet);
  font-size: clamp(18px, 2vw, 22px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(251, 248, 241, 0.72);
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.button[hidden] {
  display: none;
}

.instrument {
  aspect-ratio: 0.86;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 38px;
  background:
    radial-gradient(circle at center, rgba(121, 86, 111, 0.26), transparent 36%),
    var(--instrument);
  box-shadow: 0 34px 80px rgba(48, 39, 34, 0.24);
}

.atlas-ring {
  width: 74%;
  aspect-ratio: 1;
  position: relative;
  border: 1px solid var(--instrument-line);
  border-radius: 50%;
}

.atlas-ring::before,
.atlas-ring::after {
  content: "";
  position: absolute;
  inset: 13%;
  border: 1px solid var(--instrument-line);
  border-radius: 50%;
}

.atlas-ring::after {
  inset: 32%;
  border-color: rgba(247, 242, 232, 0.28);
}

.axis {
  position: absolute;
  inset: 50% 10% auto;
  height: 1px;
  background: var(--instrument-line);
}

.axis.vertical {
  transform: rotate(90deg);
}

.point {
  width: 12px;
  height: 12px;
  position: absolute;
  border: 2px solid var(--instrument);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.p1 { top: 11%; left: 48%; background: var(--clay); }
.p2 { top: 27%; right: 15%; background: var(--plum); }
.p3 { bottom: 22%; right: 17%; background: var(--blue); }
.p4 { bottom: 10%; left: 45%; background: var(--sage); }
.p5 { bottom: 25%; left: 14%; background: #b5965c; }
.p6 { top: 25%; left: 15%; background: #90715a; }

.instrument-label {
  position: absolute;
  bottom: 26px;
  left: 28px;
  color: var(--instrument-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
}

.instrument-kicker {
  position: absolute;
  top: 28px;
  left: 28px;
  color: rgba(247, 242, 232, 0.62);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 0 0 96px;
}

.card,
.document,
.link-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 248, 241, 0.78);
  box-shadow: 0 16px 52px rgba(48, 39, 34, 0.07);
}

.card {
  padding: 26px;
}

.card h2 {
  margin: 0 0 10px;
  font-size: 25px;
}

.card p {
  margin: 0;
  color: var(--quiet);
}

.document {
  max-width: 800px;
  margin: 64px auto 96px;
  padding: clamp(28px, 6vw, 70px);
}

.document h1 {
  font-size: clamp(42px, 7vw, 68px);
}

.document h2 {
  margin: 42px 0 12px;
  font-size: 28px;
}

.document h3 {
  margin: 28px 0 8px;
  font-size: 22px;
}

.document p,
.document li {
  color: #4f4b44;
}

.updated {
  color: var(--quiet);
  font-size: 14px;
}

.callout {
  margin: 30px 0;
  padding: 22px;
  border-left: 3px solid var(--plum);
  border-radius: 0 16px 16px 0;
  background: rgba(121, 86, 111, 0.08);
}

.link-stage {
  min-height: calc(100vh - 150px);
  display: grid;
  place-items: center;
  padding: 54px 0 80px;
}

.link-card {
  width: min(620px, 100%);
  padding: clamp(30px, 7vw, 64px);
  text-align: center;
}

.link-glyph {
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  margin: 0 auto 28px;
  border-radius: 50%;
  background: var(--instrument);
  color: var(--instrument-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 40px;
}

.link-card h1 {
  font-size: clamp(40px, 8vw, 62px);
}

.link-card .lede {
  margin-inline: auto;
}

.status {
  min-height: 24px;
  margin-top: 18px;
  color: var(--quiet);
  font-size: 14px;
}

footer {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: 13px;
}

footer a {
  text-decoration: none;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  nav {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 3px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 54px;
  }

  .instrument {
    width: min(430px, 100%);
    margin: 0 auto;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 22px 0;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --porcelain: #1d1c1a;
    --paper: #272521;
    --ink: #f5f0e6;
    --quiet: #b8b0a3;
    --line: rgba(245, 240, 230, 0.16);
  }

  body {
    background:
      radial-gradient(circle at 12% -10%, rgba(183, 111, 85, 0.13), transparent 34rem),
      radial-gradient(circle at 96% 8%, rgba(82, 111, 131, 0.12), transparent 32rem),
      var(--porcelain);
  }

  .document p,
  .document li {
    color: #d1c9bd;
  }
}