/* Folding cards on the game pages: "How it works" and "Play with friends" start closed, the chat starts open; a click
   on the heading toggles. Plain <details>, no script. */
details.fold > summary { list-style: none; cursor: pointer; }
details.fold > summary::-webkit-details-marker { display: none; }
details.fold > summary h2 { margin: 0; }
details.fold > summary h2::after { content: '\25B8'; margin-left: auto; font-size: 13px; color: var(--muted, #8fa0b8); }
details.fold[open] > summary h2::after { content: '\25BE'; }
details.fold[open] > summary h2 { margin-bottom: 8px; }
details.fold > summary:hover h2 { color: var(--text, #e6ecf5); }