:root {
  --bg-color: #121212;
  --primary-color: #03A9F4;
  --accent-color: #34C759;
  --secondary-color: #6200EA;
  --text-color: #FFFFFF;
  --dark-text: #000000;
  --gradient-bg: linear-gradient(135deg, #03A9F4, #6200EA);
}

body {
  margin: 0;
  font-family: 'Merriweather', serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

header {
  background: var(--gradient-bg);
  padding: 20px 10px;
  text-align: center;
  position: relative;
}

header h1 {
  font-family: 'Roboto', sans-serif;
  font-size: 2.5rem;
  margin: 0;
  background: linear-gradient(90deg, #03A9F4, #34C759);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.left-section {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}

.right-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

button {
  background: var(--primary-color);
  border: none;
  color: var(--dark-text);
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s ease;
}

button:hover {
  background: var(--accent-color);
}

code {
  background: rgba(255, 255, 255, 0.1);
  padding: 5px 10px;
  border-radius: 5px;
  font-family: 'Roboto Mono', monospace;
  color: var(--accent-color);
}

pre {
  background: rgba(255, 255, 255, 0.05);
  padding: 15px;
  border-radius: 10px;
  overflow-x: auto;
}

h2, h3, h4 {
  font-family: 'Roboto', sans-serif;
  color: var(--primary-color);
}

p {
  font-size: 1rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
  .container {
    grid-template-columns: 1fr;
  }
}