body {
  margin: 0;
  font-family: 'Roboto Mono', monospace;
  background: linear-gradient(135deg, #121212, #000000);
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(90deg, #00f, #8a2be2);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

header h1 {
  font-family: 'SF Pro Display', sans-serif;
  font-size: 2.5rem;
  font-weight: bold;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin: 0;
}

.container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  padding: 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 20px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, #00f, #0ff);
  border-radius: 50%;
  box-shadow: 0 0 15px #0ff, 0 0 30px #0ff;
  margin: 0 auto 15px;
  transition: transform 0.3s ease;
}

.icon:hover {
  transform: scale(1.1);
}

article {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

code {
  display: block;
  background: #1e1e1e;
  color: #00ff00;
  padding: 15px;
  border-radius: 8px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

th, td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
  background: linear-gradient(90deg, #8a2be2, #00f);
  color: #fff;
  font-weight: bold;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 15px 0;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }

  .container {
    grid-template-columns: 1fr;
  }

  code {
    font-size: 12px;
  }
}

.particle-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center, 
              url('https://images.gptkong.com/demo/sample2.png') no-repeat right bottom;
  background-size: 30%, 20%;
  opacity: 0.3;
}