:root {
  --night: #04060d;
  --dusk: #0a1031;
  --ink: #eef1ff;
  --graphite: #a3acc8;
  --iris: #8ea8ff;
  --pane: rgba(238, 241, 255, 0.05);
  --rim: rgba(238, 241, 255, 0.1);
}

* { box-sizing: border-box; }

html { background: var(--night); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(ellipse 80% 40% at 50% 0%, rgba(61, 100, 242, 0.18), transparent 70%),
    linear-gradient(180deg, var(--night) 0%, #070a19 50%, var(--dusk) 100%) fixed;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 16px 64px;
}

header { margin-bottom: 40px; }
header a { display: inline-block; }
header img { height: 40px; width: auto; display: block; }

h1 {
  font-size: 32px;
  line-height: 1.2;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 20px;
  line-height: 1.3;
  margin: 40px 0 8px;
}

p, li { color: var(--graphite); }
p { margin: 0 0 16px; }
ul { padding-left: 20px; margin: 0 0 16px; }
li { margin-bottom: 8px; }
strong { color: var(--ink); font-weight: 600; }

a { color: var(--iris); text-decoration: none; }
a:hover { text-decoration: underline; }

.lead { font-size: 19px; color: var(--ink); }
.muted { font-size: 15px; }

.card {
  background: var(--pane);
  border: 1px solid var(--rim);
  border-radius: 24px;
  padding: 24px;
  margin: 24px 0;
}
.card p:last-child { margin-bottom: 0; }

.links { display: flex; flex-wrap: wrap; gap: 8px 24px; }

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--rim);
  font-size: 15px;
  color: var(--graphite);
}