/* Ampliación exclusiva de ¿Tu mundo o el mío?; estilos comunes intactos. */
.shelf-book.tu-mundo .book-spine{background:#162e3b url('/assets/tu-mundo-o-el-mio-lomo.svg') center/100% 100% no-repeat}
.shelf-book.tu-mundo .book-back{background-image:url('/assets/tu-mundo-o-el-mio-cubierta.svg');background-size:212.743% 100%}
.reading.tu-mundo .reader h2{font-size:clamp(2rem,4vw,3rem);margin:2.5rem 0}
.tu-mundo .reader figure{max-width:540px;margin:3rem auto}
.tu-mundo .reader figure img{width:100%;height:auto}
.tu-mundo .sample-nav{max-width:730px;margin:2rem auto 3rem;padding:1rem 0;border-block:1px solid var(--line)}
.tu-mundo .sample-nav a{line-height:1.5}
.tu-mundo .reader-intro p{margin-bottom:1rem}
.tu-mundo .jacket-preview figure>a{display:block}