:root {
  --grid-light: rgba(0,0,0,0.15);
}

body {
  font-family: Georgia, serif;
  line-height: 1.6em;
  margin: 0;
  color: #000;
  background-color: #fff;
  position: relative;
  --scroll-x: 0px; 
  --scroll-y: 0px;
}

h1, h2, h3, h4 {
  font-family: Georgia, serif;
  margin-top: 2em;
}

nav {
  background-color: #fff;
  font-family: Georgia, serif;
}

nav a {
  color: #000;
  padding: 0.25em 1em;
  border: 2px solid #000;  
  margin: 0;               
  display: inline-block;
  text-decoration: none;
}

nav a:hover {
  background-color: #000;
  color: #fff;
}

nav a#surprise:hover {
  background-color: #fff;
  color: #000;
}

a:visited {
  color: #000;
}

main {
  max-width: 40em;
  margin: 2em auto;
}

img, video {
  border: 6px solid #000;
}

img.noborder, a img {
  border: 0;
}
#searchBox {
  padding: 0.25em;
  border: 2px solid #000;
  font-family: Georgia, serif;
}

button {
  padding: 0.25em 0.75em;
  border: 2px solid #000;
  background: #fff;
  cursor: pointer;
}

button:hover {
  background: #000;
  color: #fff;
}

/* grid background moved by script.js */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 200%; height: 200%;
  background-image: 
    linear-gradient(to right, var(--grid-light) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-light) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
  background-position: var(--scroll-x) var(--scroll-y);
}