/* Solo navegación añadida. No modifica PDF, animación, zoom ni lógica del visor. */
.sts-gym-return{display:inline-flex;align-items:center;min-height:36px;color:#dfc184;text-decoration:none;font:12px Jakarta,system-ui,sans-serif;white-space:nowrap}
.sts-gym-return:hover{text-decoration:underline}
.sts-gym-return:focus-visible{outline:2px solid #dfc184;outline-offset:3px;border-radius:3px}
.presentation .sts-gym-return-bar{padding:4px max(24px,6vw);background:#10261b;border-bottom:1px solid #c5a05940}
.reader .reader-context{gap:12px;min-height:44px}
.reader .reader-context>.sts-gym-return{flex-shrink:0;font-size:10px}
@media(max-width:620px){.presentation .sts-gym-return-bar{padding:4px 24px}.reader .reader-context{gap:8px}.reader .reader-context>.sts-gym-return{font-size:9px}}