body{font:16px system-ui,sans-serif;background:#f5f7fa;color:#17212b;margin:0}main{max-width:680px;margin:12vh auto;padding:2.5rem;background:#fff;border-radius:12px;box-shadow:0 4px 22px #0001}h1{font-size:1.7rem}p{color:#18794e}small{color:#667085}