#diapasonPopup {
    position: fixed;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.8rem 0.4rem 1rem;
    background: var(--gold);
    border-radius: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    animation: diapasonApparition 0.2s ease-out;
}

@keyframes diapasonApparition {
    from { opacity: 0; transform: translateY(-0.5rem); }
    to { opacity: 1; transform: translateY(0); }
}

#diapasonNote {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--bg);
}

#diapasonFermer {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: rgba(0,0,0,0.1);
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1;
    cursor: pointer;
    color: var(--bg);
}