.mark.intro-ready nav { animation: none; }
.mark.in-volo nav { opacity: 0; }
.letter-layer { position: fixed; inset: 0; overflow: hidden; pointer-events: none; z-index: 1; }
.letter-layer span { position: absolute; white-space: pre; }

.mark.in-volo.letters-started nav { opacity: 1; }
.mark.in-volo.letters-started nav a,
.mark.in-volo.letters-started .menu-caption > span { opacity: 0; }