:root {
  --bg: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  --glass: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.15);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Georgia", serif;
  background: var(--bg);
  color: #fff;
  height: 100vh;
  overflow: hidden;
  display: flex;
}
.col {
  flex: 1 1 50%;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}
.col:last-child {
  border-right: none;
}
.title-bar {
  flex: 0 0 auto;
  padding: 1.2rem 1.5rem;
  background: var(--glass);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  font-size: 1.8rem;
  letter-spacing: 2px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}
.content {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 1.5rem;
}
details {
  margin-bottom: 1rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}
/* underline every <strong> inside dropdown story text */
details strong {
  text-decoration: underline;
}
summary {
  cursor: pointer;
  font-size: 1.3rem;
  font-weight: bold;
  color: #cce0ff;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
summary::-webkit-details-marker {
  display: none;
}
summary::after {
  content: "▼";
  font-size: 0.8rem;
  transition: transform 0.2s;
}
details[open] summary::after {
  transform: rotate(180deg);
}
details p {
  margin-top: 0.8rem;
  line-height: 1.7;
  text-align: justify;
}