:root {
  --link-color: #0078d4;
  --header-bg: #f8f9fa;
  --footer-bg: #f1f1f1;
  --max-width: 900px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
}
a { color: var(--link-color); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  background: var(--header-bg);
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}
header h1 { font-size: 2.2rem; margin-bottom: 8px; }
header p { font-size: 1rem; color: #555; }
nav { margin-top: 12px; }
nav a { margin: 0 12px; font-weight: 500; }

main {
  max-width: var(--max-width);
  margin: 30px auto;
  padding: 0 16px;
}
section {
  margin-bottom: 40px;
}
section h2 {
  border-bottom: 2px solid #ddd;
  padding-bottom: 6px;
  margin-bottom: 16px;
  font-size: 1.5rem;
}

ul { list-style: disc inside; }

.team-member {
  margin-bottom: 8px;
}
.team-role {
  font-size: 0.9rem;
  color: #777;
  margin-left: 6px;
}

pre {
  background: #f3f3f3;
  padding: 12px;
  border-radius: 4px;
  overflow-x: auto;
}
code { font-family: Menlo, monospace; }

footer {
  background: var(--footer-bg);
  text-align: center;
  padding: 14px 0;
  font-size: 0.9rem;
  border-top: 1px solid #ddd;
}

@media (max-width: 600px) {
  header h1 { font-size: 1.8rem; }
  nav { display: flex; flex-direction: column; align-items: center; }
  nav a { margin: 6px 0; }
}

/* Optional responsiveness tweak for very small screens */
@media (max-width: 480px) {
  .video-container {
    max-width: 100%;
  }
}