:root { color-scheme: light dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body { margin: 0; background: #0d1117; color: #e6edf3; }
main { max-width: 720px; margin: 0 auto; padding: 64px 24px 80px; }
h1 { font-size: clamp(2rem, 7vw, 3.5rem); letter-spacing: -.04em; margin: 0 0 18px; }
h2 { margin-top: 38px; }
p, li { color: #b7c0ca; line-height: 1.65; }
a { color: #79c0ff; }
.eyebrow { color: #7ee787; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.card { border: 1px solid #30363d; background: #161b22; border-radius: 16px; padding: 22px; margin: 28px 0; }
nav { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; }
footer { border-top: 1px solid #30363d; margin-top: 48px; padding-top: 22px; font-size: .92rem; }