.watermark-container {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
}

.watermark {
    position: absolute;
    color: rgba(0, 0, 0, 0.1); /* Default opacity that will be overridden by JavaScript */
    font-family: Arial, sans-serif;
    white-space: nowrap;
    user-select: none;
    transform-origin: center;
    line-height: 1;
}

.watermark-top-left {
    top: 20px;
    left: 20px;
    transform: rotate(-45deg);
}

.watermark-top-right {
    top: 20px;
    right: 20px;
    transform: rotate(45deg);
}

.watermark-bottom-left {
    bottom: 20px;
    left: 20px;
    transform: rotate(45deg);
}

.watermark-bottom-right {
    bottom: 20px;
    right: 20px;
    transform: rotate(-45deg);
}

.watermark-center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
}

.watermark-text-xlarge {
    font-size: 36px;
    opacity: 0.6;
}

.watermark-text-large {
    font-size: 28px;
    opacity: 0.7;
}

.watermark-text-medium {
    font-size: 20px;
    opacity: 0.8;
}

.watermark-text-small {
    font-size: 14px;
    opacity: 0.9;
}

/* Media queries for responsive design */
@media (max-width: 768px) {
    .watermark-text-xlarge {
        font-size: 24px;
    }
    
    .watermark-text-large {
        font-size: 20px;
    }
    
    .watermark-text-medium {
        font-size: 16px;
    }
    
    .watermark-text-small {
        font-size: 12px;
    }
}

/* Hide watermarks when printing */
@media print {
    .watermark-container {
        display: none;
    }
}