/* Tooltip css */
.global-tooltip {
    position: fixed;
    z-index: 9999;
    background: rgba(15, 23, 42, 0.92); /* fond glass sombre */
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.6rem;
    border-radius: 0.35rem;
    border: 1px solid rgba(59, 130, 246, 0.15);
    box-shadow: 
        0 6px 20px rgba(0,0,0,0.5),
        0 0 12px rgba(59,130,246,0.12);
    backdrop-filter: blur(8px);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    white-space: nowrap;
    transform: translateY(4px);
    max-width: 250px;
    white-space: pre-line;
    line-height: 1.4;
}

.global-tooltip.show {
    opacity: 1;
}