body {
  background-color: #101010;
  color: #ffffff;
  font-family: Times, Arial, sans-serif, Calibri;
  line-height: 1.6;
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

h1 {
  color: #ffffff;
  margin-top: 20px;
  margin-bottom: 20px;
  border-bottom: 2px solid #2c3e50;
}

h2, h3, h4, p, ol, ul {
  margin-top: 0.2em;
  margin-bottom: 0.2em;
}

.container {
  display: flex;
  gap: 20px;
}

.left-column {
  flex: 0.35;
}

.right-column {
  flex: 0.65;
}

.section {
  margin: 20px 0;     /* top/bottom margin x left/right margin */
}

.section h2 {
  color: #34495e;
}

.nav-link {
  color: #ff0000;
  text-decoration: none;
}

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

.abstract {
  margin-left: 0.5in;
  margin-right: 0.5in;
  padding: 0;
  text-align: justify;
  font-size: 0.9em;
}

.text-indent {
  text-indent: 2em;
  text-align: justify;
}