:root{color-scheme:light dark;--ground:#F4F5F7;--ink:#14171C;--accent:#1D4ED8}
@media (prefers-color-scheme:dark){:root{--ground:#14171C;--ink:#E6E8EB;--accent:#8FB0FF}}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--ground);color:var(--ink);font-family:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;display:grid;place-items:center;padding:16px}
main{text-align:center}
h1{font-size:clamp(28px,6vw,44px);font-weight:600;letter-spacing:.01em;margin:16px 0 12px}
a{color:var(--accent);font-size:17px;text-underline-offset:4px;display:inline-block;padding:12px 16px}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}