body {
    background-color: #f5f8fb;
    font: 14px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    height: 100%;
    margin: 0;
}


h1 {
    font-size: 200%;
}

h2 {
    font-size: 170%;
}

h3 {
    font-size: 150%;
}

h4 {
    font-size: 120%;
}


/* Layout */
.layout {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    max-height: 100dvh;
    overflow: hidden;
}

.layout-header {
    flex-shrink: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    background-color: #f8f9fa;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid #ddd;
}

.layout-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: #f7f7f7;
}

.layout-footer {
    display: grid;
    grid-auto-columns: 1fr;
    grid-auto-flow: column;
    background-color: #f8f9fa;
    border-top: 1px solid #ddd;
    padding: 0;
    text-align: center;
    flex-shrink: 0;
    overflow-x: auto;
}


/*
.layout-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.layout-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

header, footer {
    background-color: #f8f9fa;
    padding: 1rem;
    border-bottom: 1px solid #ddd;
}

footer {
    border-top: 1px solid #ddd;
    text-align: center;
    flex-shrink: 0;
}
*/

/* Header
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    box-sizing: border-box;
    background-color: #f8f9fa;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid #ddd;
    flex-shrink: 0;
}
    */

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logoCabecera {
    height: 40px;
    width: auto;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-icon {
    font-size: 1.5rem;
    color: #555;
}

.username {
    font-weight: 500;
}


/* Footer
.app-footer {
    display: grid;
    grid-auto-columns: 1fr;
    grid-auto-flow: column;
    background-color: #f8f9fa;
    border-top: 1px solid #ddd;
    padding: 0.5rem 0;
    text-align: center;
    flex-shrink: 0;
}
*/

.footer-cell {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
    font-weight: 500;
    color: #aaa;
}

    .footer-cell:hover {
        background-color: #e9ecef;
        cursor: pointer;
    }

.menuSelected {
    color: #333;
}

.footer-cell-movil {
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
    font-weight: 500;
    color: #aaa;
}

    .footer-cell-movil:hover {
        background-color: #e9ecef;
        cursor: pointer;
    }



/* General */
.center {
    margin: 0;
    height: Calc(100dvh - 180px);
    display: flex;
    justify-content: center;
    align-items: center;
}


.caja {
    border: 1px solid gray;
    border-radius: 5px;
    background-color: white;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.3);
    padding: 20px;
}


.btnIcono {
    width: 200px;
}

    .btnIcono img {
        width: 32px;
    }

.btnIcono2 img {
    width: 18px;
}


.gridHorizontal {
    display: flex;
    align-items: start;
    gap: 10px;
    flex-wrap: wrap;
    padding: 10px;
}

.gridCelda {
    flex: 1 1 80%;
    padding: 10px;
}

.procesando {
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    width: 100vw;
    background-color: #000000ab;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}


/* Formularios */
.form {
    padding: 20px;
    text-align: left;
}

    .form label {
        font-weight: bold;
        font-size: 120%;
    }

    .form input {
        padding: 4px;
        margin-bottom: 10px;
        width: 100%;
    }

.is-invalid {
    background-color: #dbb0b0;
}


/* Lecciones */
.leccion-tema {
    border: 1px solid gray;
    border-radius: 5px;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.3);
    margin: 20px 10px;
    padding: 10px;
    background-color: white;
    cursor: pointer;
}

.leccion-tema-icono {
    float: left;
    font-size: 150%;
    border-radius: 50%;
    background-color: #dfe8f7;
    padding: 5px;
    margin: 5px;
}

.leccion-tema-titulo {
    font-size: 120%;
    font-weight: bold;
}

    .leccion-tema-titulo img {
        width: 22px;
    }

.leccion-tema-descripcion {
}

.lecction-tema-progreso {
    font-size: 90%;
}

.leccion-tema-expandir {
    float: right;
    width: 22px;
}

.leccion-modulo {
    border: 1px solid gray;
    border-radius: 5px;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.3);
    margin: 20px 10px;
    padding: 10px;
    background-color: white;
    cursor: pointer;
}

.leccion-modulo-icono {
    border-radius: 50%;
    width: 42px;
    height: 42px;
    padding: 5px;
    margin: 5px;
    float: left;
}

    .leccion-modulo-icono img {
        width: 22px;
        margin: 5px;
    }

.leccion-modulo-titulo {
    font-size: 110%;
    font-weight: bold;
}

    .leccion-modulo-titulo img {
        width: 22px;
    }

.leccion-modulo-descripcion {
}

.leccion-modulo-barraProgreso {
    margin-top: 8px;
}

.leccion-modulo-completado {
    float: right;
    margin-left: 10px;
}

.leccion-modulo-estrellas {
    height: 20px;
    margin-top: 5px;
    margin-left: 56px;
}

    .leccion-modulo-estrellas img {
        width: 22px;
    }

.leccion-pregunta-estado {
    margin: 4px 16px;
}

.leccion-pregunta-boton {
    width: Calc(100% - 20px);
    margin: 10px;
    text-align: left;
}

.leccion-pregunta-reloj {
    float: right;
    margin-left: 16px;
}

    .leccion-pregunta-reloj img {
        width: 18px;
    }

.leccion-pregunta-explicacion-correcta {
    width: Calc(100% - 20px);
    border: 1px solid #198754;
    padding: 10px;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 5px;
    border-left: 5px solid #198754;
    background-color: #19875422;
}

.leccion-pregunta-explicacion-incorrecta {
    width: Calc(100% - 20px);
    border: 1px solid #dc3545;
    padding: 10px;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 5px;
    border-left: 5px solid #dc3545;
    background-color: #dc354522;
}