*{box-sizing:border-box}
:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#151515;background:#fff}
body{margin:0} header,main{width:min(980px,calc(100% - 32px));margin:auto}
header{padding:28px 0 20px;border-bottom:1px solid #e8e8e8}
nav{display:flex;gap:16px} a{color:inherit}
main{padding:36px 0 60px}
.card{border:1px solid #e4e4e4;border-radius:14px;padding:18px;margin:12px 0}
.muted{color:#666}
img{max-width:100%;height:auto}