:root{color-scheme:light;font-family:IBM Plex Sans,ui-sans-serif,system-ui,sans-serif;background:radial-gradient(circle at top left,#f8fafc,#eef2ff 30%,#fff);color:#0f172a}*{box-sizing:border-box}body{margin:0;min-height:100vh}.shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.card{width:min(720px,100%);border:1px solid rgba(15,23,42,.08);background:#ffffffdb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:28px;padding:2.5rem;box-shadow:0 30px 90px #0f172a1f}.eyebrow{margin:0 0 .75rem;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:#475569}h1{margin:0 0 1rem;font-size:clamp(2rem,4vw,3.5rem);line-height:1.05}.body{margin:0;color:#334155;font-size:1.05rem;line-height:1.7}