body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f4f4f6;font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1d1d1f}
.card{background:#fff;padding:32px 28px;border-radius:16px;box-shadow:0 4px 24px rgba(0,0,0,.08);width:min(360px,88vw);text-align:center}
h1{font-size:22px;margin:0 0 8px}.muted{color:#6e6e73}.err{color:#c62828;min-height:1em}
button{width:100%;padding:14px;border:0;border-radius:12px;background:#0071e3;color:#fff;font-size:17px;font-weight:600;margin-top:12px;cursor:pointer}
button:disabled{opacity:.5}button.link{background:none;color:#0071e3;font-weight:400}
label{display:block;text-align:left;font-size:14px;color:#6e6e73;margin-top:12px}input{width:100%;box-sizing:border-box;padding:12px;border:1px solid #d2d2d7;border-radius:10px;font-size:16px;margin-top:4px}