<svg width="200" height="200" viewBox="0 0 200 200"
xmlns="http://www.w3.org/2000/svg">
<defs>
<!-- Gradient from bright top-left to dark bottom-right -->
<linearGradient id="bgGradient" x1="0%" y1="0%" x2="100%" y2="100%">
<stop offset="0%" style="stop-color:#233f5c"/>
<stop offset="100%" style="stop-color:#12202e"/>
</linearGradient>
</defs>
<!-- Dark blue background with gradient -->
<rect width="200" height="200" fill="url(#bgGradient)" rx="0" ry="0"/>
<!-- Bold white X -->
<g fill="white">
<!-- First diagonal stroke -->
<rect x="0" y="75" width="200" height="50" rx="0" transform="rotate(45 100 100)"/>
<!-- Second diagonal stroke -->
<rect x="0" y="75" width="200" height="50" rx="0" transform="rotate(-45 100 100)"/>
</g>
</svg>