@import url('https://fonts.googleapis.com/css2?family=Alegreya+Sans+SC:wght@100&display=swap');

:root{
 --grey:#666;
 --top:76px;
 --foot:52px;
}

:root{
 --grey:#666;
 --top:76px;
 --foot:52px;
}

*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif}

.topbar{
 height:var(--top);
 display:flex;
 align-items:stretch;
 justify-content:space-between;
 padding:0 12px;
 border-bottom:1px solid #ddd;
}

.menu-trigger{
 border:none;
 background:none;
 cursor:pointer;
 color:var(--grey);

 width:64px;
 height:100%;

 display:flex;
 flex-direction:column;

 align-items:center;
 justify-content:center;
}

.hamburger{font-size:34px;line-height:1}
.menu-label{
 width:34px;text-align:center;font-size:11px;letter-spacing:.4px;
}

.logo-wrap{
 flex:1;display:flex;justify-content:center;padding:0 24px;
}
.logo-wrap{
 flex:1;
 display:flex;
 justify-content:center;
 align-items:center;
 padding:0 6px;
}

.mail-icon{
 width:64px;
 height:100%;
 display:flex;
 align-items:center;
 justify-content:center;
 color:var(--grey);
}

.mail-icon svg{
 width:34px;height:34px;
 stroke:currentColor;fill:none;stroke-width:1.7;
}

.menu-trigger:hover, .mail-icon:hover, .footer a:hover, .overlay-menu a:hover, .close-btn:hover{
 color:#000;
}

.content{
 height:calc(100vh - var(--top) - var(--foot));
}

#contentFrame{
 width:100%;height:100%;border:none;
}

.footer{
 height:var(--foot);
 display:flex;
 justify-content:space-evenly;
 align-items:center;
 border-top:1px solid #ddd;
}

.footer a, .overlay-menu a, .close-btn{
 color:var(--grey);
 text-decoration:none;
 white-space:nowrap;
}

.footer a:hover, .overlay-menu a:hover{
 text-decoration:underline;
}

.overlay{
 position:fixed;inset:0;background:#fff;
 display:none;z-index:9999;
}

.overlay.active{
 display:flex;justify-content:center;align-items:center;
}

.close-btn{
 position:absolute;right:20px;top:20px;
 border:none;background:none;font-size:34px;cursor:pointer;
}

.overlay-menu{
 display:flex;flex-direction:column;align-items:center;gap:18px;
}

.overlay-menu a{
 font-size:clamp(20px,3vw,34px);
}

.separator{
 width:140px;border-top:1px solid var(--grey);
 margin:8px 0;
}

.bh-logo{
 height:100%;

 display:inline-flex;
 align-items:center;

 text-decoration:none;
 white-space:nowrap;

 font-family:"Alegreya Sans SC",sans-serif;
 font-weight:100;

 color:#4A4A4A;
}

.bh-text{
 color:#4A4A4A;
 font-size:calc(var(--top) * 0.50);
 line-height:1;
}

.bh-banner{
 height:100%;

 display:flex;
 align-items:center;
 justify-content:center;

 background:#BF0000;

 margin-inline:0.08em;
 padding-inline:0.10em;

 flex-shrink:0;
}

.bh-mark{
 color:#D1D1D1;
 font-size:calc(var(--top) * 0.50);
 line-height:1;
}

.bh-logo sup{
 font-size:0.42em;
 vertical-align:super;
}

.bh-logo,
.bh-logo:visited,
.bh-logo:hover,
.bh-logo:active{
    color:#4A4A4A;
    text-decoration:none;
}