/* Make logo white for better visibility on dark backgrounds */
/* Target the logo in RTD theme sidebar */
.wy-side-nav-search .wy-dropdown > a img,
.wy-side-nav-search > a img {
    filter: brightness(0) invert(1);
}

/* Also target by source path as backup */
img[src*="logo.svg"] {
    filter: brightness(0) invert(1);
}