body {
  background-color: #FFF;
  background-image: radial-gradient(rgba(0,0,0,.125), transparent 85%), url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAALElEQVQI12NggAEBBIuJAQsgXpARi5kMLEgKYMIPGLCoxG47C7JZmIJIJgEAjh4CVvvlKmIAAAAASUVORK5CYII=)
}

body[id="/"] article {
  background-color: transparent;
  box-shadow: none;
  margin: 1em 0 0 0;
}

body[id="/"] article > div {
  float: left;
  display: inline-block;
  width: 100%;
  margin-bottom: .75em;
  background-color: #fff;
  background-image: radial-gradient(rgba(255,255,255,.25) 85%, rgba(255,255,255,.75));
  padding: 0em 2em 1em 2em;
  box-shadow: 1ex 1ex 1.5ex #888;
  border-radius: .5em;
  border: 1pt solid;
}

body[id="/"] article > div.title    {
  background-color: #EEF;
  background-color: rgba(160,160,224,.375);
  border-color: #88C;
  border-color: rgba(128,128,192,.75);
}
body[id="/"] article > div.training {
  background-color: #FFE;
  background-color: rgba(224,224,160,.375);
  border-color: #CC8;
  border-color: rgba(192,192,128,.75);
}
body[id="/"] article > div.talks    {
  background-color: #EFF;
  background-color: rgba(160,224,224,.375);
  border-color: #8CC;
  border-color: rgba(128,192,192,.75);
}
body[id="/"] article > div.software {
  background-color: #EFE;
  background-color: rgba(160,224,160,.375);
  border-color: #8C8;
  border-color: rgba(128,192,128,.75);
}
body[id="/"] article > div.projects {
 background-color: #FEF;
  background-color: rgba(224,160,224,.375);
  border-color: #C8C;
  border-color: rgba(192,128,192,.75);
}


@media(min-width: 800px){
  --body { padding: 1em 2em; }
  body[id="/"] article > div { width: 49.5%; }
  body[id="/"] article > div:nth-of-type(2n) { margin-right: 1%; }
  body[id="/"] article > div:nth-of-type(1n+2) { min-height: 30em; }
  body[id="/"] article > div:nth-last-of-type(1),
  body[id="/"] article > div:nth-last-of-type(2) {
    min-height: 0;
  }
}

body[id="/"] article > div.title {
  width: 100%;
  text-align: center;
  min-height: 0;
}
body[id="/"] article > div.title h1 {
  display: inline-block;
  margin-right: .5em;
  font-style: italic;
}
body[id="/"] article > div.title h1 + p {
  display: inline-block;
}

body[id="/"] header .menu a[href="../"] {
  display: none;
}