:root{--color-bg:#fefaf6;--color-card:#fff;--color-border:#dddce0;--color-text-secondary:#93897d;--color-text-dark:#345964;--color-teal:#49aa99;--color-primary:#f2600c;--color-primary-hover:#d9310b;--sombra-tarjeta:0 4px 12px #34596414;color:var(--color-text-dark);background:var(--color-bg);font-family:system-ui,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0}#root{max-width:900px;margin:0 auto;padding:24px 16px 48px}.encabezado{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.encabezado-titulo{align-items:center;gap:10px;font-size:1.3rem;font-weight:600;display:flex}.icono-app{background:var(--color-primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-size:1rem;display:flex}.encabezado-progreso-texto{color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.04em;font-size:.85rem;font-weight:600}.barra-progreso-fondo{background:var(--color-border);border-radius:999px;width:100%;height:6px;margin-bottom:32px;overflow:hidden}.barra-progreso-relleno{background:var(--color-primary);border-radius:999px;height:100%;transition:width .3s}.contenido-principal{grid-template-columns:1.1fr 1fr;gap:20px;display:grid}@media (width<=720px){.contenido-principal{grid-template-columns:1fr}}.tarjeta{background:var(--color-card);border:1px solid var(--color-border);box-shadow:var(--sombra-tarjeta);border-radius:14px;padding:24px}.tarjeta-titulo{margin:0 0 16px;font-size:1.05rem;font-weight:600}.clave-titulo{color:var(--color-text-secondary);text-align:center;margin-bottom:10px;font-size:.85rem}.clave{flex-wrap:wrap;justify-content:center;gap:20px;margin-bottom:20px;display:flex}.resultado-wrapper{margin-top:6px}.enunciado{text-align:center;margin-bottom:20px;font-weight:500}.rompecabezas{flex-direction:column;align-items:center;gap:6px;display:flex}.cuadrado-vacio{border:2px dashed var(--color-teal);width:50px;height:50px;color:var(--color-teal);border-radius:4px;justify-content:center;align-items:center;font-size:1.3rem;display:flex}.flecha{color:var(--color-text-secondary);font-size:1.3rem}.fila-abajo{gap:8px;display:flex}.cuadrado{border:2px solid #00000026;border-radius:6px;width:44px;height:44px}.amarillo{background-color:#ffd400}.azul{background-color:#1e90ff}.negro{background-color:#2b2b2b}.rojo{background-color:#e53935}.opciones{grid-template-columns:1fr 1fr;gap:12px;display:grid}.opcion{background:var(--color-card);border:2px solid var(--color-border);cursor:pointer;border-radius:12px;flex-direction:column;align-items:center;gap:8px;padding:16px 10px;font-family:inherit;display:flex;position:relative}.opcion:hover{border-color:var(--color-teal)}.opcion.seleccionada{border-color:var(--color-primary);background:#f2600c0f}.opcion-letra{color:var(--color-text-secondary);font-size:.75rem;font-weight:700;position:absolute;top:8px;left:10px}.opcion-check{background:var(--color-primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:.7rem;display:flex;position:absolute;top:6px;right:8px}.opcion-nombre{text-transform:capitalize;font-size:.85rem}.navegacion{justify-content:space-between;margin-top:28px;display:flex}.boton-anterior{color:var(--color-text-secondary);cursor:pointer;background:0 0;border:none;font-weight:600}.boton-anterior:disabled{opacity:.4;cursor:default}.boton-siguiente{background:var(--color-primary);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 22px;font-weight:600}.boton-siguiente:hover{background:var(--color-primary-hover)}.resultado-final{text-align:center;padding:60px 20px}.pantalla-centrada{text-align:left;max-width:600px;margin:60px auto}.pantalla-centrada h1,.pantalla-centrada h2{text-align:center}.fila-cuadrados{justify-content:center;gap:8px;display:flex}.pretest-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0;display:grid}.pretest-item{cursor:pointer;background:0 0;border:2px solid #0000;border-radius:8px;padding:6px}.pretest-item.seleccionada{border-color:var(--color-primary)}.feedback{border-radius:8px;align-items:center;gap:8px;margin-top:16px;padding:10px 14px;font-size:.9rem;display:flex}.feedback-correcto{color:var(--color-teal);background:#49aa991f}.feedback-incorrecto{color:var(--color-primary-hover);background:#d9310b1a}.feedback-icono{font-size:1.1rem;font-weight:700}.unidad-clave{flex-direction:column;align-items:center;gap:4px;display:flex}.temporizador-wrapper{justify-content:center;margin-bottom:10px;display:flex}.temporizador{background:var(--color-primary);color:#fff;border-radius:999px;padding:6px 16px;font-size:.9rem;font-weight:700}.fila-abajo-separada{margin-top:6px}.feedback-neutral{background:var(--color-border);color:var(--color-text-secondary)}.boton-reiniciar-seleccion{color:var(--color-text-secondary);cursor:pointer;background:0 0;border:none;margin-top:12px;font-size:.85rem;text-decoration:underline}.campo-label{text-align:left;color:var(--color-text-secondary);margin:16px 0 4px;font-size:.85rem;font-weight:600;display:block}.campo-input{border:1px solid var(--color-border);box-sizing:border-box;border-radius:8px;width:100%;margin-top:4px;padding:10px 12px;font-family:inherit;font-size:1rem}.campo-input:focus{border-color:var(--color-primary);outline:none}.campo-error{color:var(--color-primary-hover);margin:8px 0 0;font-size:.85rem}.ilustracion-equivalencia{flex-wrap:wrap;justify-content:center;align-items:flex-end;gap:40px;margin:24px 0;display:flex}.ilustracion-puzzle{flex-direction:column;align-items:center;gap:6px;display:flex}.ilustracion-recuadro{border:2px solid var(--color-text-dark);border-radius:8px;padding:14px 10px}.cuadrado-vacio-ilustracion{font-size:0}