/* "About Arcane Gambit" (index.html #about): the source section is hidden; its folded copy (.ab-box) sits at
   the very bottom of the menu card, styled like the Recent matches fold above it. Without JavaScript the
   source shows as plain text (a <noscript> style in the head). */
#about { display: none; max-width: 760px; margin: 0 auto; padding: 32px 16px; color: var(--fg); font-size: 15px; line-height: 1.55; }
#lobby .ab-box { margin-top: var(--s4, 16px); padding-top: 12px; border-top: 1px solid var(--m-line, rgba(110, 200, 255, .32)); font-size: 12px; }
#lobby .ab-box summary { cursor: pointer; list-style: none; font: 700 11px var(--ui); letter-spacing: .14em; text-transform: uppercase; color: #a9bad3; }
#lobby .ab-box summary::-webkit-details-marker { display: none; }
#lobby .ab-box summary::before { content: '▸'; display: inline-block; width: 1em; color: var(--muted); transition: transform .15s; }
#lobby .ab-box[open] summary::before { transform: rotate(90deg); }
#lobby .ab-body { max-width: 760px; padding: 8px 0 4px; color: #c9d5e6; font-size: 13px; line-height: 1.55; }
#lobby .ab-body h2 { margin: 6px 0 6px; font: 700 15px var(--title); letter-spacing: .06em; color: var(--fg); }
#lobby .ab-body h3 { margin: 12px 0 2px; font: 700 12px var(--ui); letter-spacing: .1em; text-transform: uppercase; color: #a9bad3; }
#lobby .ab-body p { margin: 0 0 8px; }
#lobby .ab-body ul { margin: 0 0 8px; padding-left: 18px; }
#lobby .ab-body a { color: var(--fg); }
@media (pointer: coarse) and (max-width: 1024px), (pointer: coarse) and (max-height: 500px), (max-width: 760px) {
  #lobby .ab-box summary { display: flex; align-items: center; min-height: 44px; }
  #lobby .ab-body { font-size: 14px; }
}