/* System fonts only: no third-party requests (CSP default-src 'none'). */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px;background:#F5F7FB;color:#102A43;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.5}
.card{width:100%;max-width:440px;background:#FFFFFF;border:1px solid #E3E9F1;border-radius:16px;padding:28px 24px}
.brand{margin:0 0 12px;font-weight:700;color:#2563EB;letter-spacing:.2px}
h1{margin:0 0 12px;font-size:1.35rem;line-height:1.3}
p{margin:0;color:#486581}