body{font-family:system-ui,sans-serif;background:#f5f7fb;margin:0;color:#17223b}main{max-width:720px;margin:10vh auto;padding:40px;background:#fff;border-radius:18px}#drop-zone{margin:28px 0;padding:72px 24px;border:2px dashed #1d3da0;border-radius:14px;text-align:center;display:grid;gap:12px}label,button{padding:12px 18px;border:0;border-radius:9px;background:#1d3da0;color:#fff;cursor:pointer}progress{width:100%}#status{min-height:24px}