/* Bouton rouge de téléchargement, visible seulement en plein écran. */
.gmplus-photo-lightbox .gmplus-save-photo {
    position: absolute;
    z-index: 10;
    left: 50%;
    bottom: max(18px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-height: 46px;
    max-width: calc(100vw - 30px);
    padding: 12px 19px;
    border: 0;
    border-radius: 10px;
    background: #d51f34;
    color: #fff !important;
    box-shadow: 0 4px 22px rgba(0,0,0,.45);
    font: 700 14px/1.3 system-ui, sans-serif;
    text-align: center;
    text-decoration: none !important;
    white-space: nowrap;
    cursor: pointer;
    touch-action: manipulation;
}
.gmplus-photo-lightbox .gmplus-save-photo:hover,
.gmplus-photo-lightbox .gmplus-save-photo:focus-visible {
    background: #b9182a;
    outline: 2px solid #fff;
    outline-offset: 2px;
}
.gmplus-photo-lightbox .gmplus-save-photo-disabled {
    opacity: .45;
    pointer-events: none;
}
/* La petite phrase "Glissez" ne chevauche pas le bouton. */
.gmplus-photo-lightbox.gmplus-save-photo-ready .gmplus-lightbox-hint {
    display: none;
}
@media (max-width: 600px) {
    .gmplus-photo-lightbox .gmplus-save-photo {
        font-size: 13px;
        padding: 11px 14px;
    }
}