body {
    font-family: sans-serif;
    background-color: #f4f7f6;
}

.container {
    padding-top: 20px;
}

.header-title {
    margin-bottom: 20px;
    text-align: center;
    color: #333;
}

.section-title {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #555;
    border-bottom: 2px solid #5b6483; /*#007bff*/
    padding-bottom: 5px;
}

.occupied-summary-list {
    list-style-type: none;
    padding-left: 0;
}

.occupied-summary-list li {
    background-color: #ffc107;
    color: #333;
    margin-bottom: 5px;
    padding: 8px;
    border-radius: 4px;
}

.class-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-left: 5px solid #5b6483;
    margin-bottom: 15px;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.class-card h5 {
    color: #5b6483;
    margin-bottom: 10px;
}

.class-card p {
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.class-card .careers-list {
    font-size: 0.85rem;
    margin-top: 8px;
    padding-left: 15px;
}

.class-card .careers-list li {
    margin-bottom: 3px;
}

.class-card .time {
    font-weight: bold;
    color: #28a745;
}

.no-activity {
    text-align: center;
    font-size: 1.2rem;
    color: #777;
    margin-top: 20px;
}

.current-time-banner {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.1em;
    background-color: #e9ecef;
    padding: 10px;
    border-radius: 5px;
}

/* Estilo para el contenedor de carga */
.loading-placeholder {
    text-align: center;
    padding: 20px;
    font-style: italic;
    color: #666;
}

/* Estilos para el contenedor del Treemap de Actividad */
.activity-treemap-container {
    background-color: #fff;
    padding: 0; /* El card-body ya tiene padding */
    border-radius: 0.35rem;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.activity-treemap-container .card-header {
    font-size: 1.1rem;
    font-weight: bold;
    color: #5a5c69;
    background-color: #f8f9fc; /* Un color de fondo suave para el header */
    border-bottom: 1px solid #e3e6f0;
}

.activity-treemap-container .card-body {
    padding: 1rem; /* Ajustar padding si es necesario */
}

/* Ajustes para el contenedor de tablas si es necesario */
#activityContent {
    /* ... estilos existentes o nuevos ... */
}