:root {
  color-scheme: dark;
  --background: #070b16;
  --surface: #10182a;
  --border: #26334d;
  --text: #f2f5fb;
  --muted: #aeb9cc;
  --accent: #8ab4ff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: var(--accent);
}

.shell {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0 80px;
}

header {
  margin-bottom: 36px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 8px 0 12px;
  font-size: clamp(2.1rem, 7vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

p,
ul {
  margin: 0;
}

ul {
  padding-left: 1.25rem;
}

.lede,
.meta {
  color: var(--muted);
}

.lede {
  max-width: 620px;
  font-size: 1.08rem;
}

.meta {
  margin-top: 14px;
  font-size: 0.9rem;
}

.card {
  margin-top: 16px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.card p + p,
.card p + ul,
.card ul + p {
  margin-top: 12px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #07101f;
}

footer {
  margin-top: 40px;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 520px) {
  .shell {
    width: min(100% - 28px, 760px);
    padding-top: 40px;
  }

  .card {
    padding: 20px;
  }
}