:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #edf5f7;
  background: #0b1923;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; display: flex; flex-direction: column; }
main { width: min(100% - 3rem, 50rem); margin: auto; padding: 6rem 0 4rem; }
.eyebrow { color: #98c9c7; font-size: .9rem; letter-spacing: .08em; }
h1 { font-size: clamp(3.2rem, 10vw, 6rem); letter-spacing: -.055em; margin: .5rem 0 1rem; line-height: 1.05; }
.intro { max-width: 31rem; font-size: 1.25rem; line-height: 1.6; color: #c1d2db; }
a { color: #a6e7df; text-underline-offset: .2em; }
a:focus-visible { outline: 3px solid #eefbd1; outline-offset: 5px; }
.launch { display: inline-flex; gap: 2rem; align-items: center; margin: 1rem 0; padding: .95rem 1.2rem; color: #06201d; background: #a6e7df; border-radius: .45rem; font-weight: 650; text-decoration: none; }
.launch:hover { background: #caf4ed; }
.source { margin-top: 1.2rem; color: #9aafb9; line-height: 1.7; }
footer { display: flex; gap: 1.5rem; flex-wrap: wrap; width: min(100% - 3rem, 50rem); margin: 0 auto; padding: 2rem 0; font-size: .85rem; }
@media (prefers-reduced-motion: no-preference) { .launch { transition: background-color 120ms ease; } }