/* Custom Tooltip */
.tooltip-container {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    display: none;
    padding: 6px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.8rem;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(5px);
    transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.tooltip-container.visible {
    opacity: 1;
    transform: translateY(0);
}

.tooltip-container::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--border);
}

.tooltip-container::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--bg-primary);
    z-index: 1;
}