body{font-family:Arial,sans-serif;background:#eef8f2;color:#233;margin:0;line-height:1.7}
header,footer{background:#1f6f5f;color:#fff;padding:18px}
.container{max-width:900px;margin:auto;padding:24px}
details{background:#fff;border-radius:10px;padding:10px 14px;margin:12px 0;box-shadow:0 2px 8px rgba(0,0,0,.08)}
a{color:#fff;text-decoration:none}