:root {
  --bg: #0a1628;
  --bg-alt: #0f2139;
  --card: #112a49;
  --text: #e8f1ff;
  --muted: #b8c8de;
  --accent: #56c2ff;
  --accent-strong: #1fa6f3;
  --border: #2a476b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at top, var(--bg-alt), var(--bg));
  color: var(--text);
  line-height: 1.6;
}

.hero,
main,
footer {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 4.5rem 0 2.2rem;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.82rem;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.15;
  margin: 0.5rem 0 1rem;
  max-width: 18ch;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 64ch;
}

.actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.button {
  display: inline-block;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 0.7rem;
  font-weight: 600;
}

.button.primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

main {
  padding: 1.5rem 0 3rem;
  display: grid;
  gap: 1.2rem;
}

section {
  background: color-mix(in srgb, var(--card) 82%, black);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.2rem;
}

h2 {
  margin-top: 0;
}

.feature-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.75rem;
}

.feature-list li {
  list-style: square;
}

.feature-list h3 {
  margin-bottom: 0.2rem;
}

.feature-list p,
.links li,
footer p {
  color: var(--muted);
}

pre {
  overflow-x: auto;
  background: #081323;
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 0.8rem;
}

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

footer {
  padding: 0 0 2rem;
}

@media (max-width: 700px) {
  .hero {
    padding-top: 2.8rem;
  }

  .button {
    width: 100%;
    text-align: center;
  }
}