:root{color-scheme:dark;font:17px system-ui,sans-serif;background:#0b111a;color:#e7edf7}main{max-width:360px;margin:12vh auto;padding:28px;background:#151f2e;border-radius:12px}h1{margin-top:0}p{color:#bdc9da;line-height:1.5}label{display:block;margin:20px 0}input,button{box-sizing:border-box;width:100%;padding:12px;margin-top:8px;font:inherit;border-radius:6px;border:1px solid #657895}button{background:#bfd5ff;color:#15243a;font-weight:600;cursor:pointer}