nav { font-family: monospace; font-size: 0.85em; padding: 12px 20px; }
nav a { color: inherit; text-decoration: none; }
nav a:hover { text-decoration: underline; }

body { margin: 0; font-family: monospace; background: #f8f8f8; }

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 { font-size: 1.4em; margin: 0 0 32px; }

.accordion { border-top: 1px solid #e0e0e0; }

.item { border-bottom: 1px solid #e0e0e0; }

.header {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  font-family: monospace;
  font-size: 0.95em;
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  color: #222;
}

.header:hover { color: #555; }

.icon {
  display: inline-block;
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

.item.open .icon {
  transform: rotate(-180deg);
}

.body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.item.open .body {
  max-height: 200px;
}

.inner {
  padding: 0 0 16px;
  color: #555;
  line-height: 1.6;
  font-size: 0.9em;
}

.inner code {
  background: #e0e0e0;
  padding: 2px 5px;
  font-family: monospace;
}