*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:#0f1419;color:#e7e9ea;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;display:flex;align-items:center;justify-content:center}
main{text-align:center;padding:24px 16px}
h1{font-size:clamp(28px,6vw,48px);margin:0 0 24px;font-weight:600}
img{max-width:min(90vw,520px);height:auto;border-radius:16px;display:block;margin:0 auto}