/* Grid overlay styles - can be easily removed later */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.grid-line {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.3);
}

.grid-line.vertical {
    width: 1px;
    height: 100%;
}

.grid-line.horizontal {
    height: 1px;
    width: 100%;
}

.grid-label {
    position: absolute;
    color: #ffff00;
    font-size: 12px;
    font-weight: bold;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 3px 6px;
    border-radius: 3px;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}