:root {
  --bg: #081018;
  --bg-card: rgba(232, 238, 248, 0.05);
  --ink: #eef3fb;
  --muted: #a8b6c9;
  --moon: #f4ead0;
  --ice: #8ec4d8;
  --line: rgba(238, 243, 251, 0.14);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Source Sans 3", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 1.12rem;
  line-height: 1.6;
  position: relative;
}

.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 12%, rgba(244, 234, 208, 0.22), transparent 18%),
    radial-gradient(circle at 12% 8%, rgba(142, 196, 216, 0.08), transparent 24%),
    radial-gradient(1.5px 1.5px at 18% 22%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1px 1px at 28% 64%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1.5px 1.5px at 71% 41%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1px 1px at 88% 72%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1px 1px at 44% 18%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1.5px 1.5px at 61% 78%, rgba(255, 255, 255, 0.28), transparent),
    linear-gradient(180deg, #07101c 0%, #0b1524 48%, #101820 100%);
}

a {
  color: var(--ice);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--moon);
}

.top,
main,
footer {
  width: min(760px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.65rem 0 0;
  font-size: 0.95rem;
}

.top a,
footer a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

.top a:hover,
footer a:hover {
  color: var(--moon);
}

.top strong {
  font-weight: 600;
  color: var(--muted);
}

.hero {
  position: relative;
  padding: 4.25rem 0 2.75rem;
}

.moon {
  position: absolute;
  top: 1.4rem;
  right: 0;
  width: min(148px, 28vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 32%, #fff8e6 0%, var(--moon) 38%, #d8cba8 78%, #c4b48a 100%);
  box-shadow:
    0 0 0 18px rgba(244, 234, 208, 0.06),
    0 0 80px rgba(244, 234, 208, 0.28);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--ice);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

h1 {
  margin: 0 0 1.25rem;
  max-width: min(20ch, calc(100% - 7rem));
  font-size: clamp(2.6rem, 8vw, 4.4rem);
}

h2 {
  margin: 0 0 1.35rem;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
}

h3 {
  margin: 0.2rem 0 1rem;
  font-size: 2rem;
}

.lede {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1.55;
}

.lede.sub {
  margin-top: 0.75rem;
  font-size: 1.05rem;
}

.plan,
.moons,
.notes {
  padding: 2.75rem 0 0;
}

.plan ol,
.notes ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.plan li,
.notes li {
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.plan li:last-child,
.notes li:last-child {
  border-bottom: 1px solid var(--line);
}

.plan strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.plan span,
.notes li {
  color: var(--muted);
}

.card {
  margin: 0 0 1.15rem;
  padding: 1.5rem 1.45rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-card);
}

.card:last-child {
  margin-bottom: 0;
}

.card.featured {
  border-color: rgba(244, 234, 208, 0.32);
  box-shadow: inset 0 0 0 1px rgba(244, 234, 208, 0.08);
}

.month {
  margin: 0;
  color: var(--ice);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
}

.when {
  margin: 0 0 1.1rem;
  color: var(--muted);
}

.when strong {
  color: var(--ink);
  font-weight: 600;
}

.skyfacts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0 0 1.35rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
}

.skyfacts div {
  min-width: 0;
}

.skyfacts dt {
  margin: 0 0 0.15rem;
  color: var(--ice);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 600;
}

.skyfacts dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
}

.downloads-label {
  margin: 0 0 0.7rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.7rem;
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn:hover {
  border-color: var(--moon);
  color: var(--moon);
}

.btn.primary {
  background: var(--moon);
  border-color: var(--moon);
  color: #1a1408;
}

.btn.primary:hover {
  background: #fff6de;
  color: #1a1408;
}

.notes {
  padding-bottom: 2.75rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.75rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 560px) {
  .hero {
    padding-top: 7.2rem;
  }

  .moon {
    top: 0.2rem;
    right: auto;
    left: 0;
    width: 84px;
    box-shadow:
      0 0 0 12px rgba(244, 234, 208, 0.06),
      0 0 48px rgba(244, 234, 208, 0.24);
  }

  h1 {
    max-width: none;
  }

  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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