html,body{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;color:#1f2933}.app-page{max-width:640px;margin:0 auto;padding:24px 16px}.app-page h1{margin:0 0 16px;font-size:1.5rem}.app-page section{margin:0 0 24px}.app-page ul{list-style:none;margin:0;padding:0}.app-page li{padding:8px 0}.app-page label{display:block;margin-bottom:12px}.app-page input[type=email],.app-page input[type=text]{display:block;width:100%;max-width:360px;margin-top:4px;padding:8px 10px;font:inherit;box-sizing:border-box}.app-page button{font:inherit;padding:8px 14px;cursor:pointer}