body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f7f7f7;
  color: #1e1e1e;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

.site-header, .site-footer {
  background-color: #ffffff;
  border-bottom: 1px solid #ddd;
  padding: 10px 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.site-header .logo img {
  height: 40px;
  vertical-align: middle;
}

.main-nav a, .site-footer nav a {
  margin-right: 15px;
  text-decoration: none;
  color: #003366;
  font-weight: bold;
}

.main-nav a:hover, .site-footer nav a:hover {
  text-decoration: underline;
}

.contacts p, .contacts a {
  font-size: 0.9em;
  color: #222;
  margin: 4px 0;
}

footer .contacts, footer .legal {
  margin-top: 15px;
}

h1 {
  font-size: 2em;
  margin-bottom: 0.3em;
}

h2 {
  font-size: 1.5em;
  margin-top: 2em;
}

#chat-window {
  border: 1px solid #ccc;
  background-color: #fff;
  padding: 10px;
  height: 300px;
  overflow-y: auto;
  margin-top: 20px;
}

#qa-list {
  margin-top: 20px;
}

a {
  color: #004488;
}