/* Configuración estructural base */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    padding: 20px;
    margin: 0;
}

h1 {
    color: #2c3e50;
    border-bottom: 2px solid #2c3e50;
    padding-bottom: 10px;
}

h2 {
    color: #2c3e50;
    margin-top: 5px;
    font-size: 1.3rem;
}

.ejercicio {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.explicacion {
    background-color: #ebf8ff;
    padding: 10px 15px;
    border-left: 4px solid #3182ce;
    margin-bottom: 20px;
    border-radius: 0 4px 4px 0;
    color: #2b6cb0;
}

/* Layout del panel */
.area-render {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    border: 2px dashed #cbd5e0;
    border-radius: 6px;
}

/* Selector estilizado */
select.btn-interactivo {
    background-color: white;
    color: #333;
    border: 2px solid #3182ce;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
    width: 250px;
}

.caja-diagnostico {
    padding: 15px;
    background: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    font-weight: bold;
    color: #3182ce; /* Azul corporativo */
    font-family: monospace;
}