:root{--fondo:#fff8f0;--tarjeta:#fff;--tinta:#3e3a36;--tinta-suave:#7a7168;--coral:#e8541d;--coral-suave:#ffccbc;--verde:#1d8a7e;--verde-suave:#b2dfdb;--lila:#7e57c2;--lila-suave:#d1c4e9;--amarillo:#ffca28;--apoyo:#7a5c50;--apoyo-fondo:#efebe9;--radio:24px;--sombra:0 4px 16px #3e3a361f}*{box-sizing:border-box}html,body{background:var(--fondo);color:var(--tinta);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:ui-rounded,Hiragino Maru Gothic ProN,Comic Neue,Segoe UI,system-ui,-apple-system,sans-serif;font-size:18px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}button:focus-visible,a:focus-visible{outline:4px solid var(--lila);outline-offset:3px;border-radius:12px}main.nino{max-width:900px;min-height:100vh;margin:0 auto;padding:24px 20px 96px}main.adulto{max-width:760px;margin:0 auto;padding:32px 24px 96px;font-family:system-ui,-apple-system,Segoe UI,sans-serif}main.adulto h1,main.adulto h2{font-weight:700}.boton{border-radius:var(--radio);color:#fff;background:var(--coral);min-height:64px;box-shadow:var(--sombra);justify-content:center;align-items:center;gap:12px;padding:16px 32px;font-size:1.4rem;font-weight:700;transition:transform .15s;display:inline-flex}.boton:active{transform:scale(.97)}.boton.secundario{background:var(--verde)}.boton.terciario{background:var(--tarjeta);color:var(--tinta);border:3px solid var(--coral-suave)}.boton.grande{width:100%;min-height:88px;font-size:1.7rem}.boton.redondo{border-radius:50%;width:72px;height:72px;min-height:72px;padding:0;font-size:2rem}.boton:disabled{opacity:.4;cursor:default}.tarjeta{background:var(--tarjeta);border-radius:var(--radio);box-shadow:var(--sombra);padding:24px}.portada{border-radius:var(--radio);text-align:center;min-height:190px;box-shadow:var(--sombra);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:24px 16px;display:flex;position:relative}.portada .emoji{font-size:4rem;line-height:1}.portada .titulo{font-size:1.15rem;font-weight:800}.portada .estado{background:#ffffffe0;border-radius:999px;padding:4px 12px;font-size:.85rem;font-weight:700}.portada.bloqueada{opacity:.55;filter:grayscale(.4)}main.lector{perspective:1400px;flex-direction:column;gap:8px;height:100dvh;padding:10px 16px 12px;display:flex;overflow:hidden}main.lector header{margin-bottom:0!important}.pagina-lectura{flex-direction:column;flex:1;align-items:center;gap:10px;min-height:0;display:flex}main.lector .boton.redondo{width:58px;height:58px;min-height:58px;font-size:1.5rem}main.lector .boton{min-height:52px;padding:10px 22px;font-size:1.15rem}main.lector .pista{margin:0;font-size:.85rem}@media (max-height:760px){main.lector .pista{display:none}}main.preparacion{flex-direction:column;gap:12px;height:100dvh;padding:10px 16px 14px;display:flex;overflow:hidden}main.preparacion .prep-portada{align-items:center;gap:16px;padding:12px 16px;display:flex}main.preparacion .prep-portada img{border-radius:16px;height:clamp(80px,22vh,170px);display:block}main.preparacion h1{margin:0;font-size:clamp(1.2rem,3.6vh,1.7rem)}main.preparacion h2{margin:0 0 8px;font-size:1.05rem}main.preparacion .tarjeta{padding:14px 16px}main.preparacion .opcion{min-width:92px;min-height:clamp(52px,9vh,76px);padding:6px 16px;font-size:clamp(1.3rem,3.6vh,1.7rem)}main.preparacion .actividad{flex-direction:column;flex:1;justify-content:center;min-height:0;display:flex}main.preparacion .boton.grande{min-height:clamp(56px,9vh,80px);font-size:1.45rem}main.preparacion .nota{margin:6px 0 0;font-size:.85rem}@media (max-height:720px){main.preparacion .prep-ocultable{display:none}}@keyframes pagina-sale{to{opacity:0;transform:rotateY(-26deg)translate(-14%)}}@keyframes pagina-entra{0%{opacity:0;transform:rotateY(22deg)translate(12%)}to{opacity:1;transform:none}}.pagina-lectura.pasando{transform-origin:0;animation:.38s ease-in forwards pagina-sale}.pagina-lectura.entrando{transform-origin:100%;animation:.42s ease-out pagina-entra}.ilustracion{border-radius:var(--radio);text-align:center;width:100%;min-height:0;box-shadow:var(--sombra);flex:auto;justify-content:center;align-items:center;padding:16px;font-size:clamp(3rem,14vh,7rem);line-height:1.15;display:flex}.ilustracion.con-imagen{padding:0;font-size:0;line-height:0;overflow:hidden}.ilustracion.con-imagen img{object-fit:cover;width:100%;height:100%;display:block}.portada.con-imagen{justify-content:flex-end;padding:0;overflow:hidden}.portada.con-imagen img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.portada.con-imagen .titulo,.portada.con-imagen .estado{z-index:1;background:#ffffffeb;border-radius:12px;padding:4px 12px;position:relative}.portada.con-imagen .titulo{margin-bottom:4px}.portada.con-imagen .estado{margin-bottom:12px}.texto-lectura{letter-spacing:.06em;word-spacing:.35em;text-align:center;color:var(--tinta);flex-shrink:0;margin:0;font-size:clamp(1.7rem,5.5vh,2.7rem);font-weight:800;line-height:1.45}.palabra{font:inherit;letter-spacing:inherit;color:inherit;background:0 0;border:none;border-radius:12px;padding:2px 6px}.palabra:hover{background:var(--coral-suave)}.palabra.activa{background:var(--amarillo)}.palabra.leida{background:var(--verde-suave);color:#00695c}.palabra.ayuda{outline:4px solid var(--amarillo);outline-offset:2px}.palabra.tuya{border-bottom:5px solid var(--amarillo);border-radius:12px}@keyframes latido-mic{0%{box-shadow:0 0 #e8541d73}70%{box-shadow:0 0 0 16px #e8541d00}to{box-shadow:0 0 #e8541d00}}.boton.mic-activo{background:var(--coral);animation:1.6s infinite latido-mic}.palabra.apoyo{color:#1565c0;background:#e3f2fd;border-bottom:3px dotted #1565c0;border-radius:12px}.barra-progreso{background:var(--coral-suave);border-radius:999px;width:100%;height:20px;overflow:hidden}.barra-progreso>div{background:var(--verde);border-radius:999px;height:100%;transition:width .4s}.habilidad{background:var(--tarjeta);border:2px solid #eee5dc;border-radius:16px;justify-content:space-between;align-items:center;gap:8px;padding:10px 16px;font-size:.95rem;display:flex}.habilidad .estado{border-radius:999px;padding:3px 10px;font-size:.8rem;font-weight:700}.estado.mastered{background:var(--verde-suave);color:#00695c}.estado.developing{color:#6d5600;background:#fff3c4}.estado.practicing{background:var(--coral-suave);color:#a3330b}.estado.not_started{color:#616161;background:#eee}.opciones{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.opcion{border-radius:var(--radio);background:var(--tarjeta);border:4px solid var(--lila-suave);min-width:110px;min-height:80px;box-shadow:var(--sombra);font-size:1.8rem;font-weight:800;transition:transform .15s,border-color .15s}.opcion:active{transform:scale(.96)}.opcion.correcta{border-color:var(--verde);background:var(--verde-suave)}.opcion.intento{border-color:var(--amarillo)}@keyframes brillo-suave{0%{transform:scale(1)}50%{transform:scale(1.08)}to{transform:scale(1)}}.celebracion{text-align:center;color:var(--verde);font-size:1.4rem;font-weight:800;animation:.6s brillo-suave}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.fila{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.centrado{text-align:center}.grid-libros{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px;display:grid}.nota{color:var(--tinta-suave);font-size:.95rem}.chip{background:var(--tarjeta);border:3px solid var(--verde-suave);min-height:48px;color:var(--tinta);border-radius:999px;align-items:center;gap:6px;padding:8px 20px;font-size:1.05rem;font-weight:700;display:inline-flex}.chip.activo{background:var(--verde);color:#fff;border-color:var(--verde)}.enlace-discreto{color:var(--tinta-suave);font-size:.9rem;text-decoration:underline}input.campo{border:3px solid var(--lila-suave);text-align:center;letter-spacing:.4em;border-radius:16px;width:100%;max-width:240px;padding:14px 18px;font-family:inherit;font-size:1.6rem}.aviso-error{color:#c62828;font-weight:600}.aviso-ok{color:#2e7d32;font-weight:600}table.tabla{border-collapse:collapse;width:100%;font-size:.95rem}table.tabla th,table.tabla td{text-align:left;border-bottom:1px solid #eee5dc;padding:8px 10px}