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55%,var(--ocre) 100%);box-shadow:0 14px 30px #4f46e54d}.reto-caja h2{color:#fff;margin:6px 0 10px}.reto-caja p{margin:0 0 18px;color:#ffffffeb;font-size:18px}.reto-caja .chip{display:inline-block;font-family:var(--dato);font-size:12px;letter-spacing:.12em;text-transform:uppercase;background:#fff3;border:1px solid rgba(255,255,255,.4);padding:5px 12px;border-radius:999px;margin:0}.reto-caja .boton{display:inline-block;background:#fff;color:var(--mar);text-decoration:none;font-weight:700;padding:14px 26px;font-size:17px}.reto-caja .boton:hover{background:var(--sal-sombra)}.reto-demo{background:#fff;color:var(--mar);border-radius:18px;padding:18px 20px;display:grid;gap:8px;box-shadow:0 10px 24px #0b10264d;transform:rotate(1.5deg)}.reto-demo-top{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:var(--tinta-suave)}.reto-demo-top span:last-child{color:var(--ocre)}.reto-caja .reto-demo p{margin:2px 0 4px;color:var(--mar);font-weight:700;font-size:17px;line-height:1.3}.reto-op{display:flex;align-items:center;gap:10px;padding:9px 12px;border:2px solid var(--linea);border-radius:12px;font-weight:600;font-size:15px}.reto-op b{flex:none;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12px;color:#fff;background:linear-gradient(135deg,var(--mar-medio),var(--ocre))}.reto-op.ok{border-color:var(--alcanza);background:#e7f5ee}@media(max-width:760px){.reto-caja{grid-template-columns:1fr;padding:24px 20px}.reto-demo{transform:none}}@keyframes flotar{0%,to{transform:rotate(1.5deg) translateY(0)}50%{transform:rotate(1.5deg) translateY(-8px)}}@keyframes latir{0%,82%,to{box-shadow:0 0 #7c3aed00}90%{box-shadow:0 0 0 7px #7c3aed47}}@media(prefers-reduced-motion:no-preference){.reto-demo{animation:flotar 4.5s ease-in-out infinite}.barra nav a.nav-juego,.hero .boton-juego{animation:latir 3.5s ease-in-out infinite}}@media(max-width:760px){@keyframes flotar{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}}