:root{--bg:#000;--text:#fff}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
.wrap{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}
.brand{display:none}
.links{display:flex;flex-direction:column;gap:16px;width:100%;max-width:420px;align-items:center}
.buttons-only .links{justify-content:center}
.btn{display:block;text-align:center;border-radius:14px;overflow:hidden;max-width:360px;width:100%}
.btn img{display:block;width:100%;height:auto}
.foot{display:none}

@media(min-width:520px){.wrap{padding:40px}.brand h1{font-size:34px}}