/* Outer Container */
.outer-container {
  width: 100%;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  box-sizing: border-box;
}

/* Header Container with CSS Background Image and Aspect Ratio */
.header-container {
  width: 100%;
  aspect-ratio: 3600 / 1620; /* Maintains the image's natural aspect ratio */
  background-image: url('https://csu.org.ph/public/site/images/marvo/policy-briefs-5.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Main Content Styling */
.main-content {
  max-width: 100%;
  margin: 0 auto;
  padding: 20px;
  font-family: Arial, sans-serif;
  color: #333;
  background: #fff;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  box-sizing: border-box;
}

.main-content h2 {
  font-size: 2em;
  font-style: italic;
  font-weight: bold;
  color: #000;
  margin-top: 10px;
}

/* Introduction Section */
.intro h3 {
  font-weight: bold;
  color: #000;
  margin-bottom: 10px;
}

.intro p {
  margin: 0 0 15px;
}

/* Ecosystem Model Section */
.ecosystem-model h3 {
  font-weight: bold;
  color: #000;
  margin-bottom: 10px;
}

.ecosystem-model figure {
  text-align: center;
  margin: 15px 0;
}

.ecosystem-image {
  width: 100%;
  max-width: 600px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.ecosystem-model figcaption {
  font-size: 14px;
  color: #666;
  margin-top: 5px;
}