:root {
  color-scheme: dark;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  background: #031724;
  color: #f2fdff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(157, 242, 255, 0.28), transparent 24rem),
    radial-gradient(circle at 82% 6%, rgba(255, 232, 163, 0.16), transparent 20rem),
    linear-gradient(180deg, #075b75 0%, #04334d 42%, #031724 100%);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 12% 72%, rgba(184, 255, 248, 0.18) 0 0.35rem, transparent 0.4rem),
    radial-gradient(circle at 72% 68%, rgba(184, 255, 248, 0.16) 0 0.5rem, transparent 0.55rem),
    radial-gradient(circle at 86% 34%, rgba(184, 255, 248, 0.16) 0 0.28rem, transparent 0.32rem),
    linear-gradient(180deg, transparent 68%, rgba(7, 55, 42, 0.5));
}

main {
  width: min(840px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 58px;
}

.site-header,
.section,
.nav-card {
  border: 1px solid rgba(234, 254, 255, 0.26);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04)),
    rgba(3, 32, 47, 0.72);
  box-shadow:
    0 18px 34px rgba(0, 13, 22, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.24);
}

.site-header {
  position: relative;
  overflow: hidden;
  padding: 28px;
}

.site-header::after {
  position: absolute;
  right: 28px;
  bottom: 24px;
  width: 92px;
  aspect-ratio: 1;
  border: 3px solid rgba(232, 254, 255, 0.74);
  border-radius: 50%;
  content: "";
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.96) 0 8%, transparent 9%),
    radial-gradient(circle at 58% 64%, rgba(255, 255, 255, 0.28) 0 17%, transparent 18%),
    linear-gradient(145deg, rgba(184, 255, 248, 0.86), rgba(38, 209, 227, 0.42));
  box-shadow: inset -12px -14px 0 rgba(8, 95, 124, 0.12), 0 14px 28px rgba(0, 25, 44, 0.24);
}

.eyebrow {
  margin: 0 0 8px;
  color: #ffe8a3;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.05;
}

h1 {
  max-width: 620px;
  font-size: clamp(2.5rem, 10vw, 5rem);
  text-shadow: 0 4px 0 rgba(0, 70, 112, 0.45);
}

h2 {
  color: #ffe8a3;
  font-size: 1.35rem;
}

p,
li {
  color: rgba(242, 253, 255, 0.88);
  font-size: 1rem;
  line-height: 1.58;
}

a {
  color: #9df2ff;
  font-weight: 800;
}

.lede {
  max-width: 600px;
  margin: 16px 0 0;
  font-size: 1.08rem;
}

.nav-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.nav-card {
  min-height: 112px;
  padding: 16px;
  text-decoration: none;
}

.nav-card strong,
.nav-card span {
  display: block;
}

.nav-card strong {
  color: #ffffff;
  font-size: 1.08rem;
}

.nav-card span {
  margin-top: 8px;
  color: rgba(232, 254, 255, 0.76);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.35;
}

.section {
  margin-top: 14px;
  padding: 22px;
}

.section h2 + p,
.section h2 + ul {
  margin-top: 10px;
}

.updated {
  margin: 10px 0 0;
  color: rgba(242, 253, 255, 0.66);
}

ul {
  padding-left: 1.2rem;
}

@media (max-width: 680px) {
  .site-header {
    padding: 24px 20px 104px;
  }

  .site-header::after {
    right: 22px;
    bottom: 18px;
    width: 70px;
  }

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