/* Shadow ONLY for content images (figures o img standalone nel testo) */
img:not(.logo) {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25);
}

/* Remove shadow from math and math-inline blocks */
.math img, img.math,
.math-inline img {
    box-shadow: none !important;
}

/* Change top-left logo background in sphinx_rtd_theme */
.wy-side-nav-search {
    background-color: #55AA55 !important;
}

/* Sidebar section titles */
.wy-menu-vertical .caption {
    color: #55AA55 !important;
    font-weight: bold;
}