html,body{margin:0;min-height:100%;background:#f7efe4;color:#25343a;font-family:Arial,sans-serif}
.copo-menu-wrapper{height:100vh;display:grid;grid-template-rows:auto 1fr;overflow:hidden}
.copo-menu-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;background:#f7efe4;border-bottom:1px solid #d7c9b9;position:sticky;top:0;z-index:10}
.copo-menu-back,.copo-menu-open-pdf{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border:1px solid #9d6547;border-radius:999px;text-decoration:none;font-weight:700;color:#25343a;background:#fffaf3}
.copo-menu-open-pdf{background:#9d6547;color:white}
.copo-menu-frame{width:100%;height:100%;border:0;background:white}
body:not(.copo-menu-wrapper)>.copo-menu-back{position:fixed;top:18px;left:18px;z-index:9999;box-shadow:0 4px 14px rgba(0,0,0,.15)}
@media(max-width:640px){
  .copo-menu-toolbar{padding:10px}
  .copo-menu-back,.copo-menu-open-pdf{padding:10px 12px;font-size:.92rem}
}