:root {
  --void: #0a1628;
  --ink: #121f38;
  --paper: #e6edf8;
  --muted: #8a9bb8;
  --accent: #3ee0c3;
  --line: rgba(255, 255, 255, 0.1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--void);
  color: var(--paper);
  font-family: ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
  line-height: 1.55;
}

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

header, main, footer {
  width: min(42rem, calc(100% - 2.5rem));
  margin-left: auto;
  margin-right: auto;
}

header {
  padding: 2rem 0 1.25rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  font-weight: 600;
  font-size: 1.85rem;
  margin: 0.35rem 0 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.25rem;
  margin-top: 1rem;
  font-size: 0.95rem;
}

main { padding: 1.75rem 0 3rem; }

article p, article li {
  color: var(--paper);
}

article h2 {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 1.6rem 0 0.45rem;
}

article ul {
  padding-left: 1.1rem;
}

.lede {
  color: var(--muted);
  margin-top: 0;
}

.hero {
  padding: 2.5rem 0 3.5rem;
}

.hero h1 { font-size: 2.4rem; }

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 34rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.05rem;
  border-radius: 0.9rem;
  background: var(--accent);
  color: var(--void);
  font-weight: 650;
}

.btn:hover { text-decoration: none; opacity: 0.9; }

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
}

footer {
  padding: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}

footer p { margin: 1rem 0 0; }