.game-about {
    width: min(410px, calc(100vw - 32px)); max-height: calc(100dvh - 32px);
    margin: auto; padding: 0; border: 1px solid #ffffff80; border-radius: 24px;
    color: #fff; background: linear-gradient(145deg, #c8dde166, #6c858b80);
    backdrop-filter: blur(24px) saturate(.65); -webkit-backdrop-filter: blur(24px) saturate(.65);
    box-shadow: inset 0 1px 0 #ffffff80, 0 24px 80px #0005;
    font-family: Arial, sans-serif;
}
.game-about::backdrop { background: #04101999; }
.game-about[open] { animation: about-enter 220ms ease-out; }
.about-inner { padding: 28px 30px 18px; }
.about-kicker { display: block; text-align: center; font-size: 9px; letter-spacing: .25em; color: #ffffffb3; }
.game-about h1 { margin: 15px 0 5px; text-align: center; font-size: 22px; font-weight: 500; letter-spacing: .055em; }
.about-version { display: block; text-align: center; font-size: 10px; color: #ffffffa6; }
.about-logos { display: flex; justify-content: center; align-items: center; gap: 22px; margin: 20px 0; }
.about-logos img { object-fit: contain; }
.about-logos > span { width: 1px; height: 28px; background: #ffffff30; }
.about-sybo { filter: none; }
.game-about[data-game=redlight] .about-logos,
.game-about[data-game=jumprope] .about-logos { gap:16px; padding:18px 12px; border-radius:14px; background:#fffffff0; }
.game-about[data-game=redlight] .about-logos > span,
.game-about[data-game=jumprope] .about-logos > span { flex-shrink:0; background:#23313b20; }
.game-about[data-game=redlight] .about-logos img,
.game-about[data-game=jumprope] .about-logos img { width:calc((100% - 33px)/2); min-width:0; height:74px; }
.about-copy { min-height: 182px; font-size: 12px; line-height: 1.65; color: #ffffffe6; }
.about-copy p { margin: 0 0 13px; }
.about-countdown { display: flex; justify-content: space-between; align-items: center; margin: 17px 0 8px; font-size: 9px; color: #ffffffa6; }
.game-about button { color: #fff; background: transparent; border: 0; cursor: pointer; font: inherit; }
#about-timer-toggle { padding: 5px; font-size: 10px; }
.about-timer-track { height: 2px; background: #ffffff20; overflow: hidden; border-radius: 2px; }
.about-timer-track span { display: block; height: 100%; width: 100%; background: #ffffffe6; transform-origin: left; }
.about-footer { display: flex; gap: 20px; margin-top: 12px; align-items: center; }
.about-footer button { padding: 8px 0; font-size: 11px; color: #ffffffc9; }
.about-footer button:hover { color: #fff; }
.about-footer button[aria-pressed="true"] { text-decoration: underline; text-underline-offset: 5px; }
#about-close { margin-left: auto; color: white; }
#about-close span { font-size: 17px; margin-left: 9px; }
@keyframes about-enter { from { opacity: 0; transform: translateY(8px) scale(.985); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .game-about[open] { animation: none; } }
@media (max-height: 600px) { .about-inner { padding: 18px 24px 12px; } .about-logos { margin: 10px 0; } }