/* ========================================
   Estilos Generales
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

/* ========================================
   Pantallas principales
   ======================================== */

.pantalla {
    display: none;
    min-height: 100vh;
    padding: 20px;
}

.pantalla.activa {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ========================================
   Pantalla de Inicio
   ======================================== */

.contenedor-inicio {
    background: white;
    padding: 50px 40px;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 600px;
    animation: aparecerInicio 0.8s ease-out;
}

@keyframes aparecerInicio {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.titulo-principal {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitulo {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 30px;
}

.personaje-inicio {
    font-size: 6rem;
    margin: 30px 0;
    animation: balanceo 2s ease-in-out infinite;
}

@keyframes balanceo {
    0%, 100% {
        transform: rotate(-5deg);
    }
    50% {
        transform: rotate(5deg);
    }
}

.formulario-inicio {
    margin: 30px 0;
    text-align: left;
}

.formulario-inicio label {
    display: block;
    font-size: 1.2rem;
    color: #667eea;
    font-weight: bold;
    margin-bottom: 10px;
}

.formulario-inicio input {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border: 3px solid #ddd;
    border-radius: 15px;
    transition: all 0.3s;
    font-family: inherit;
}

.formulario-inicio input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.mensaje-validacion {
    margin-top: 8px;
    font-size: 0.9rem;
    min-height: 20px;
}

.mensaje-validacion.error {
    color: #dc3545;
}

.mensaje-validacion.exito {
    color: #28a745;
}

.btn-comenzar {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    animation: pulso 2s ease-in-out infinite;
}

@keyframes pulso {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* ========================================
   App Principal
   ======================================== */

#app-principal {
    display: none;
    flex-direction: column;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

#app-principal.activa {
    display: flex;
}

/* ========================================
   Header de Estudiante y Puntuación
   ======================================== */

.header-estudiante {
    background: white;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.info-estudiante {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icono-estudiante {
    font-size: 2rem;
}

.nombre-estudiante {
    font-size: 1.3rem;
    font-weight: bold;
    color: #667eea;
}

.panel-puntuacion {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.puntuacion-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 10px 20px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

.etiqueta-puntos {
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.puntos-numero,
.estrellas-numero {
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.estrellas-numero {
    display: flex;
    align-items: center;
    gap: 3px;
}

/* ========================================
   Barra de Progreso
   ======================================== */

.barra-progreso-contenedor {
    background: white;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.barra-progreso {
    width: 100%;
    height: 25px;
    background: #e0e0e0;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progreso-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 14.28%; /* 1/7 actividades */
    transition: width 0.5s ease;
    border-radius: 15px;
}

.texto-progreso {
    text-align: center;
    font-weight: bold;
    color: #667eea;
    font-size: 1.1rem;
}

/* ========================================
   Actividades
   ======================================== */

.actividad {
    display: none;
}

.actividad.activa {
    display: block;
    animation: deslizarEntrada 0.5s ease-out;
}

@keyframes deslizarEntrada {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.contenedor-actividad {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

.titulo-actividad {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 15px;
    border-bottom: 3px solid #f5576c;
    padding-bottom: 10px;
}

.instrucciones {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 25px;
    line-height: 1.6;
}

/* ========================================
   Preguntas Abiertas
   ======================================== */

.pregunta-abierta {
    margin-bottom: 25px;
}

.pregunta-abierta label {
    display: block;
    font-weight: bold;
    color: #333;
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.pregunta-abierta textarea,
.pregunta-abierta input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
    resize: vertical;
}

.pregunta-abierta textarea:focus,
.pregunta-abierta input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
}

/* ========================================
   Preguntas Numéricas
   ======================================== */

.pregunta-numerica {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.pregunta-numerica label {
    flex: 1;
    min-width: 250px;
    font-weight: 500;
    color: #333;
}

.input-numero {
    width: 120px;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1.1rem;
    text-align: center;
    font-weight: bold;
}

.input-numero:focus {
    outline: none;
    border-color: #667eea;
}

.resultado {
    font-size: 1.5rem;
    font-weight: bold;
    min-width: 30px;
}

.resultado.correcto {
    color: #28a745;
}

.resultado.incorrecto {
    color: #dc3545;
}

/* ========================================
   Botones
   ======================================== */

.btn-grande {
    padding: 18px 40px;
    font-size: 1.3rem;
    font-weight: bold;
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-grande:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-verificar {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    padding: 15px 35px;
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    margin-top: 20px;
    transition: all 0.3s;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.btn-verificar:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(17, 153, 142, 0.4);
}

.btn-finalizar {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    margin-top: 30px;
}

/* ========================================
   Puntaje y Resultados
   ======================================== */

.puntaje-resultado {
    margin-top: 25px;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    font-size: 1.3rem;
    font-weight: bold;
    display: none;
}

.puntaje-resultado.mostrar {
    display: block;
    animation: aparecerResultado 0.5s ease-out;
}

@keyframes aparecerResultado {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.puntaje-resultado.excelente {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
}

.puntaje-resultado.bueno {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.puntaje-resultado.mejorar {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    color: #333;
}

/* ========================================
   Tablas
   ======================================== */

.tabla-responsive {
    overflow-x: auto;
    margin: 25px 0;
}

.tabla-interactiva,
.tabla-editable {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.tabla-interactiva thead,
.tabla-editable thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.tabla-interactiva th,
.tabla-editable th {
    padding: 15px;
    text-align: left;
    font-weight: bold;
}

.tabla-interactiva td,
.tabla-editable td {
    padding: 15px;
    border-bottom: 1px solid #eee;
}

.tabla-interactiva tbody tr:hover,
.tabla-editable tbody tr:hover {
    background: #f8f9fa;
}

.tabla-interactiva input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.input-tabla {
    width: 100%;
    padding: 8px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.input-tabla:focus {
    outline: none;
    border-color: #667eea;
}

/* ========================================
   Mensajes Informativos
   ======================================== */

.mensaje-info {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    padding: 15px 20px;
    border-radius: 10px;
    margin-top: 20px;
    border-left: 5px solid #f39c12;
    font-weight: 500;
}

/* ========================================
   Opciones Creativas
   ======================================== */

.opciones-creativas {
    margin: 25px 0;
}

.opcion-creativa {
    margin-bottom: 15px;
}

.opcion-creativa input[type="radio"] {
    display: none;
}

.label-opcion {
    display: flex;
    align-items: center;
    padding: 20px;
    border: 3px solid #ddd;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s;
    background: white;
}

.label-opcion:hover {
    border-color: #667eea;
    transform: translateX(5px);
}

.opcion-creativa input[type="radio"]:checked + .label-opcion {
    border-color: #667eea;
    background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
}

.icono-opcion {
    font-size: 2rem;
    margin-right: 15px;
}

.texto-opcion {
    font-size: 1.2rem;
    font-weight: 500;
}

.contenido-opcion {
    margin-top: 20px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 15px;
    border: 2px solid #667eea;
}

.contenido-opcion h3 {
    color: #667eea;
    margin-bottom: 15px;
}

/* ========================================
   Autoevaluación
   ======================================== */

.autoevaluacion {
    margin: 30px 0;
}

.check-item {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    display: flex;
    align-items: center;
}

.check-item input[type="checkbox"] {
    width: 25px;
    height: 25px;
    margin-right: 15px;
    cursor: pointer;
}

.check-item label {
    font-size: 1.1rem;
    cursor: pointer;
    user-select: none;
}

.mensaje-motivador {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    margin-top: 30px;
}

.mensaje-motivador p {
    margin: 10px 0;
    font-size: 1.2rem;
    line-height: 1.6;
}

/* ========================================
   Navegación
   ======================================== */

.navegacion {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 20px;
}

.btn-nav {
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    flex: 1;
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-siguiente {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* ========================================
   Pantalla Final
   ======================================== */

.contenedor-final {
    background: white;
    padding: 50px 40px;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 700px;
    animation: aparecerFinal 0.8s ease-out;
}

@keyframes aparecerFinal {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.titulo-final {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 20px;
}

.personaje-final {
    font-size: 6rem;
    margin: 20px 0;
    animation: rotacion 2s ease-in-out infinite;
}

@keyframes rotacion {
    0%, 100% {
        transform: rotate(0deg);
    }
    50% {
        transform: rotate(15deg);
    }
}

.resumen-final {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    margin: 25px 0;
    text-align: left;
}

.resumen-final h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.resumen-final p {
    margin: 10px 0;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* ========================================
   Responsividad
   ======================================== */

@media (max-width: 768px) {
    .titulo-principal {
        font-size: 2rem;
    }

    .subtitulo {
        font-size: 1rem;
    }

    .personaje-inicio,
    .personaje-final {
        font-size: 4rem;
    }

    .contenedor-inicio,
    .contenedor-final {
        padding: 30px 20px;
    }

    .header-estudiante {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .info-estudiante {
        justify-content: center;
    }

    .panel-puntuacion {
        justify-content: center;
    }

    .contenedor-actividad {
        padding: 25px 20px;
    }

    .titulo-actividad {
        font-size: 1.5rem;
    }

    .instrucciones {
        font-size: 1rem;
    }

    .pregunta-numerica {
        flex-direction: column;
        align-items: flex-start;
    }

    .input-numero {
        width: 100%;
    }

    .navegacion {
        flex-direction: column;
    }

    .btn-nav {
        width: 100%;
    }

    .tabla-interactiva th,
    .tabla-interactiva td {
        padding: 10px 8px;
        font-size: 0.9rem;
    }

    .icono-opcion {
        font-size: 1.5rem;
    }

    .texto-opcion {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .titulo-principal {
        font-size: 1.5rem;
    }

    .btn-grande {
        padding: 15px 25px;
        font-size: 1.1rem;
    }

    .titulo-actividad {
        font-size: 1.3rem;
    }

    .tabla-interactiva th,
    .tabla-interactiva td {
        padding: 8px 5px;
        font-size: 0.85rem;
    }
}