.html-overlay-container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 30px;
  background-color: #f8f9fa;
  color: #212529;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
}
.html-overlay-container h1 {
  color: #2c7a2c;
  font-size: 1.8rem;
  margin-bottom: 16px;
  text-align: center;
}
.html-overlay-container h2 {
  color: #333;
  font-size: 1.4rem;
  margin-top: 1.5em;
  margin-bottom: 0.8em;
  border-bottom: 2px solid #e9ecef;
  padding-bottom: 4px;
}
.html-overlay-container p {
  margin: 12px 0;
}
.html-overlay-container ul {
  padding-left: 20px;
}
.html-overlay-container li {
  margin: 8px 0;
}
.html-overlay-footer {
  margin-top: 30px;
  text-align: center;
}
.html-overlay-button-ok {
  display: inline-block;
  background-color: #2c7a2c;
  color: white;
  padding: 12px 30px;
  font-size: 1.1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 10px;
  cursor: pointer;
  border: none;
}
.html-overlay-button-ok:hover {
  background-color: #225f22;
}
.html-overlay-button-cancel {
  display: inline-block;
  background-color: #555555;
  color: white;
  padding: 12px 30px;
  font-size: 1.1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 10px;
  cursor: pointer;
  border: none;
}
.html-overlay-button-cancel:hover {
  background-color: #2c2a2c;
}
.html-overlay-note {
  font-size: 0.9rem;
  color: #6c757d;
  text-align: center;
  margin-top: 10px;
}
@media (max-width: 600px) {
  .html-overlay-container {
    padding: 20px;
  }
  .html-overlay-container h1 {
    font-size: 1.5rem;
  }
  .html-overlay-container h2 {
    font-size: 1.3rem;
  }
}