:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color-scheme:light dark}
*{box-sizing:border-box}body{margin:0;background:#0c1422;color:#eef4ff;line-height:1.65}main{max-width:740px;margin:0 auto;padding:64px 24px 48px}.brand{color:#72c6ff;font-weight:800;letter-spacing:.2em;margin:0 0 24px}h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;margin:0 0 22px}h2{font-size:1.2rem;margin:0 0 12px}.lead{font-size:1.14rem;color:#c9d7ed}section{background:#152239;border:1px solid #283b56;border-radius:16px;padding:24px;margin:24px 0}section p{margin:0;color:#c9d7ed}a{color:#8fd3ff}footer{font-size:.9rem;color:#8da4c3;margin-top:48px}@media(max-width:540px){main{padding:42px 18px}section{padding:18px}}