:root {
  --page: #d5e3e6;
  --card: #f1f7f8;
  --accent: #2c6f78;
  --alt: #3d8fa0;
  --ink: #1a2c30;
  --muted: #5a7378;
  --nav: #e4eef0;
  --rule: #b7cbcf;
  --pearl: #f7fbfc;
  --danger: #8c3a3a;
  --coin: #c48a3a;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--ink);
  background-color: var(--page);
  background-image:
    radial-gradient(circle at 18px 18px, #c5d6da 1.4px, transparent 1.6px);
  background-size: 28px 28px;
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 16px 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--nav);
  border: 1px solid var(--rule);
  border-radius: 28px;
  padding: 10px 14px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 600;
  font-size: 17px;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--accent);
  box-shadow: inset 0 0 0 6px rgba(247, 251, 252, 0.35);
}

.links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.links a {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
}

.links a[aria-current="page"] {
  background: var(--accent);
  color: var(--pearl);
  border-color: var(--accent);
}

.hero,
.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 22px 20px;
  margin-bottom: 14px;
}

.kicker {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

h2 {
  margin: 22px 0 8px;
  font-size: 18px;
  font-weight: 600;
}

p,
li {
  color: var(--ink);
  font-size: 16px;
}

.lede,
.meta {
  color: var(--muted);
  font-size: 16px;
}

.meta {
  font-size: 13px;
}

ul {
  margin: 0;
  padding-left: 1.15em;
}

li + li {
  margin-top: 6px;
}

.callout {
  background: var(--nav);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 14px 16px;
  margin: 16px 0 0;
}

.callout strong {
  color: var(--accent);
}

.grid {
  display: grid;
  gap: 12px;
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.tile {
  display: block;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 18px;
  padding: 18px 16px;
  color: inherit;
  text-decoration: none;
}

.tile:hover {
  text-decoration: none;
  border-color: var(--alt);
}

.tile h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.tile p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.btn {
  display: inline-block;
  margin-top: 14px;
  background: var(--accent);
  color: var(--pearl);
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
  background: var(--alt);
}

.foot {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}