:root{color-scheme:light;font-family:Segoe UI,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(135deg,#f6f8fb,#e9eef8)}.app-shell{max-width:720px;margin:8rem auto;padding:2rem;border-radius:16px;background:#fff;box-shadow:0 20px 45px #1522321f}h1{margin:0 0 .75rem}p{margin:0;color:#405063}.gate-shell{max-width:560px}.invite-form{margin-top:1rem;display:flex;gap:.5rem}.invite-form input{flex:1;border:1px solid #c7d5ea;border-radius:10px;padding:.56rem .65rem;font:inherit}.invite-form button{border:0;border-radius:10px;background:#0b7f8b;color:#fff;padding:.56rem .85rem;font:inherit;cursor:pointer}.invite-error{margin-top:.55rem;color:#b4234f}