/* pixel-ish look */
body {
  margin: 0;
  font-family: "Courier New", monospace;
  background: black;
}

/* star background */
.space-bg {
  min-height: 100vh;
  background: radial-gradient(circle, #2b3d5b, #000);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* main card */
.site-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  width: 900px;
  background: #cfe3f7;
  border: 3px solid #7aa6d6;
  box-shadow: 0 0 30px rgba(255,255,255,0.4);
}

/* panels */
.left-panel {
  background: #dbeeff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.left-panel img {
  max-width: 100%;
  image-rendering: pixelated;
}

.nav-panel {
  background: #c2ddf5;
  padding: 15px;
  border-left: 2px dashed #7aa6d6;
  border-right: 2px dashed #7aa6d6;
}

.nav-panel h1 {
  font-size: 20px;
  margin: 0;
}

.version {
  font-size: 12px;
  opacity: 0.7;
}

.nav {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.nav li {
  margin: 6px 0;
  cursor: pointer;
}

.nav li:hover {
  text-decoration: underline;
}

/* right text */
.text-panel {
  background: #b9d6f2;
  padding: 15px;
  font-size: 13px;
}

.text-panel h2,
.text-panel h3 {
  margin-top: 0;
}