:root {
  --primary-bg: linear-gradient(135deg, #0a0a2a, #1e1e3a);
  --secondary-color: #ffffff;
  --accent-gradient: linear-gradient(90deg, #6a11cb, #2575fc);
  --code-bg: rgba(255, 255, 255, 0.1);
  --border-radius: 12px;
}

body {
  font-family: 'Roboto', sans-serif;
  background: var(--primary-bg);
  color: var(--secondary-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 40px 20px;
  background: var(--accent-gradient);
  color: #fff;
  border-bottom-left-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
}

main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 20px;
}

@media (min-width: 768px) {
  main {
    grid-template-columns: 2fr 1fr;
  }
}

section {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

aside {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.image-gallery img {
  width: 100%;
  border-radius: var(--border-radius);
  object-fit: cover;
  margin-bottom: 10px;
  transition: transform 0.3s ease;
}

.image-gallery img:hover {
  transform: scale(1.05);
}

h2, h3 {
  color: #fff;
  margin-top: 0;
}

pre {
  background: var(--code-bg);
  padding: 15px;
  border-radius: var(--border-radius);
  overflow-x: auto;
  font-size: 0.9em;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

th, td {
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 10px;
  text-align: left;
}

th {
  background: var(--code-bg);
}

button {
  background: var(--accent-gradient);
  border: none;
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: transform 0.2s ease;
}

button:hover {
  transform: scale(1.05);
}

@media (max-width: 768px) {
  main {
    grid-template-columns: 1fr;
  }

  pre {
    font-size: 0.8em;
  }
}