body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}
header {
  color: #0d47a1;
  padding: 1em;
  text-align: center;
  position: relative;
}
header img {
  position: absolute;
  top: 10px;
  right: 20px;
  height: 60px;
}
nav {
  background: #2196f3;
  padding: 0.5em;
  text-align: center;
}
nav a {
  color: white;
  margin: 0 1em;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
main {
  padding: 2em;
  max-width: 1000px;
  margin: auto;
  background: white;
}
h1, h2 {
  color: #0d47a1;
}
ul {
  padding-left: 1.2em;
}
.cve-list {
  background: #eee;
  padding: 1em;
  margin-top: 1em;
  border-radius: 5px;
}
.cve-item {
  margin-bottom: 0.5em;
}
img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
  margin: 1em 0;
}
a {
  color: #0d47a1;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}