:root {
  --primary-color: #002f6c;
  --secondary-color: #2b70af;
  --background-color: #f8f9fa;
  --text-color: #333333;
  --border-color: #dddddd;
  --nav-bg: #ffffff;
  --max-width: 1000px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--nav-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover, nav a.active {
  color: var(--primary-color);
}

main {
  background-color: #ffffff;
  padding: 40px;
  margin: 40px auto;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  max-width: var(--max-width);
}

h1, h2, h3, h4 {
  color: var(--primary-color);
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
}

h1 {
  font-size: 2.2rem;
  margin-top: 0;
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 10px;
}

h2 {
  font-size: 1.8rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 5px;
}

p, ul, ol {
  margin-bottom: 1rem;
}

ul, ol {
  padding-left: 20px;
}

li {
  margin-bottom: 0.5rem;
}

a {
  color: var(--secondary-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

hr {
  border: 0;
  border-top: 1px solid var(--border-color);
  margin: 2rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

th, td {
  border: 1px solid var(--border-color);
  padding: 12px 15px;
  text-align: left;
}

th {
  background-color: #f1f3f5;
  font-weight: bold;
  color: var(--primary-color);
}

tr:nth-child(even) {
  background-color: #f8f9fa;
}

.staff-member {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  align-items: flex-start;
}

.staff-info {
  flex: 1;
}

/* Responsiveness */
@media (max-width: 768px) {
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  nav ul {
    flex-direction: column;
    gap: 10px;
  }

  main {
    margin: 20px auto;
    padding: 20px;
  }

  .staff-member {
    flex-direction: column;
  }
}

/* Accessibility enhancements */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 1001;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--secondary-color);
}

:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}