/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

/* Header */
#header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #004d99;
  color: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  z-index: 1000;
}

#header {
  max-width: 960px;
  margin: 0 auto;
  padding: 1em;
}

/* Navigation */
#nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1em;
}

#nav li {
  display: inline;
}

#nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  padding: 0.4em 0.8em;
  transition: background-color 0.3s;
}

#nav a:hover {
  background-color: #0066cc;
  border-radius: 5px;
}

/* Content */
#content-wrapper {
  padding-top: 6em;
  padding-bottom: 4em;
}

#content {
  max-width: 960px;
  margin: 0 auto;
  background-color: #fff;
  padding: 2em;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* Typography */
h1 {
  font-size: 1.8em;
  margin-bottom: 0.5em;
  color: #004d99;
}

h2 {
  font-size: 1.4em;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: #0066cc;
}

p, ul {
  margin-bottom: 1em;
  font-size: 1em;
}

a {
  color: #0066cc;
}

a:hover {
  text-decoration: underline;
}