/* Performance Monitor - positioned below zoom % inside viewport */
#perfMonitor {
    position: absolute;
    top: 65px;
    left: 15px;
    background: rgba(15, 17, 20, 0.92);
    border: 1px solid var(--border);
    padding: 8px 10px;
    border-radius: var(--radius-md);
    color: var(--success);
    font-family: 'Consolas', 'Fira Code', monospace;
    font-size: 11px;
    z-index: 100;
    pointer-events: none;
    display: none;
    min-width: 120px;
}
#perfMonitor div {
    margin-bottom: 2px;
    display: flex;
    justify-content: space-between;
}
#perfMonitor span {
    color: var(--text-bright);
    font-weight: bold;
}