body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #fff;
  color: #333;
}

h1, h2 {
  text-align: center;
}

nav {
  text-align: center;
  margin-bottom: 20px;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #0066cc;
}

figure {
  text-align: center;
  margin-bottom: 20px;
}

img {
  display: block;
  margin: 0 auto;
  width: 80%;
  max-width: 600px;
  height: auto;
  border-radius: 12px;
  border: 2px solid #ccc;     
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); 
}

figcaption {
  margin-top: 8px;
  font-style: italic;
  font-size: 0.9em;
  color: #555;
}

div.content {
  width: 90%;
  max-width: 800px;
  margin: 20px auto;
}

div.video,
div.audio,
div.transcript {
  width: 90%;
  max-width: 800px;
  margin: 20px auto;
  text-align: center;
}

footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
  font-size: 0.9em;
  border-top: 1px solid #ccc;
}

.pc-table {
  border-collapse: collapse;
  width: 80%;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.pc-table th,
.pc-table td {
  border: 1px solid #ccc;
  padding: 10px;
}

.pc-table th {
  background-color: #f2f2f2;
  font-weight: bold;
}