body {
  font-family: Arial, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  max-width: 1000px;
  margin: 40px auto;
  line-height: 1.6;
}

h1, h2 {
  color: #2c3e50;
}

nav {
  margin-bottom: 40px;
}

nav a {
  margin-right: 15px;
  font-weight: bold;
  text-decoration: none;
  color: #0066cc;
}

nav a:hover {
  text-decoration: underline;
}


.section {
  display: flex;
  gap: 30px;
  background: white;
  padding: 30px;
  margin-bottom: 40px;
  border-radius: 13px;
}

.section img {
  width: 300px;
  height: auto;
  border-radius: 6px;
}

.section-text {
  flex: 1;
}

.side-banner {
  position: fixed;
  top: 120px;
  width: 200px;
  height: 600px;
  object-fit: cover;
  z-index: 0;
  opacity: 0.85;
  pointer-events: none;

  clip-path: polygon(
    0% 0%,    
    100% 0%,  
    100% 85%, 
    50% 100%,  
    0% 85%   
  );
}

.side-banner.left {
  left: 20px;
}

.side-banner.right {
  right: 20px;
}

@media (max-width: 1400px) {
  .side-banner {
    display: none;
  }
}
@media (max-width: 800px) {
  body {
    padding: 0 16px;
  }
}

details[open] summary {
  margin-bottom: 10px;
}
.section {
  align-items: flex-start;
}

.menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.menu li {
  position: relative;
}


.menu a {
  text-decoration: none;
  color: #2a7bd6;        
  font-weight: 500;
  padding: 6px 8px;
}


.menu a:hover {
  text-decoration: underline;
  color: #2a7bd6;
}


.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  list-style: none;
  padding: 0.5rem 0;
  margin: 0;
  background-color: white;
  border: 1px solid #ddd;
  min-width: 220px;
  z-index: 1000;
}


.dropdown-content li a {
  padding: 6px 16px;
  white-space: nowrap;
}

.dropdown-content li:nth-child(2) {
  border-top: 1px solid #ddd;
  padding-top: 0.5rem;
  margin-top: 0.5rem;
}


.dropdown:hover .dropdown-content {
  display: block;
}

.subtle-link {
  color: inherit;    
  text-decoration: underline; 
  font-weight: normal;  
}

.video-row {
  display: flex;
  gap: 20px;            
  justify-content: center; 
  flex-wrap: wrap;        
  margin-bottom: 40px;
}

.video-container iframe {
  max-width: 100%;
  border-radius: 10px;
}