Xbox Controller SVG Art

```xml
<svg width="400" height="600" viewBox="0 0 400 600" xmlns="http://www.w3.org/2000/svg">
  <title>Modern Xbox Controller</title>
  <desc>Detailed SVG art of a modern Xbox controller with clean design and subtle gradients.</desc>

  <!-- --- Main Body --- -->
  <rect x="50" y="100" width="300" height="200" fill="#2e3440" stroke="#1a202c" stroke-width="3" />
  <rect x="50" y="300" width="300" height="100" fill="#2e3440" stroke="#1a202c" stroke-width="3" />
  <rect x="50" y="400" width="300" height="100" fill="#2e3440" stroke="#1a202c" stroke-width="3" />

  <!-- --- Top Section (Buttons) --- -->
  <rect x="50" y="120" width="150" height="50" fill="#3a4050" stroke="#1a202c" stroke-width="2" />
  <rect x="200" y="120" width="150" height="50" fill="#3a4050" stroke="#1a202c" stroke-width="2" />
  <rect x="50" y="220" width="150" height="50" fill="#3a4050" stroke="#1a202c" stroke-width="2" />
  <rect x="200" y="220" width="150" height="50" fill="#3a4050" stroke="#1a202c" stroke-width="2" />

  <!-- --- Shoulder Buttons --- -->
  <rect x="50" y="280" width="30" height="30" fill="#3a4050" stroke="#1a202c" stroke-width="1" />
  <rect x="220" y="280" width="30" height="30" fill="#3a4050" stroke="#1a202c" stroke-width="1" />

  <!-- --- Trigger Buttons --- -->
  <rect x="70" y="350" width="40" height="40" fill="#3a4050" stroke="#1a202c" stroke-width="1" />
  <rect x="130" y="350" width="40" height="40" fill="#3a4050" stroke="#1a202c" stroke-width="1" />

  <!-- --- Bottom Section (Analog Stick) --- -->
  <rect x="120" y="450" width="60" height="10" fill="#3a4050" stroke="#1a202c" stroke-width="1" />
  <rect x="120" y="440" width="50" height="5" fill="#2e3440" stroke="#1a202c" stroke-width="0.5" />
  <rect x="120" y="430" width="50" height="5" fill="#2e3440" stroke="#1a202c" stroke-width="0.5" />
  <rect x="120" y="420" width="50" height="5" fill="#2e3440" stroke="#1a202c" stroke-width="0.5" />
  <circle cx="120" cy="450" r="5" fill="#2e3440" stroke="#1a202c" stroke-width="0.5" />

  <!-- --- D-Pad --- -->
  <rect x="120" y="480" width="60" height="10" fill="#2e3440" stroke="#1a202c" stroke-width="1" />
  <rect x="130" y="480" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="475" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="470" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="465" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="460" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="455" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="450" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="445" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="440" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="435" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="430" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="425" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="420" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="415" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="410" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="405" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="400" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="395" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="390" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />
  <rect x="130" y="385" width="10" height="5" fill="#1a202c" stroke="#1a202c" stroke-width="0.3" />