:root {
  --primary-color: #0074D9;
  --secondary-color: #FFC300;
  --background-color: #F5F5F5;
  --text-color: #333333;
  --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0074D9, #FFC300);
  z-index: -1;
  opacity: 0.2;
}

header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  text-align: center;
  padding: 40px 20px;
}

header h1 {
  font-size: 2.5rem;
  margin: 0;
}

header p {
  font-size: 1.2rem;
  margin-top: 10px;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  padding: 20px;
}

.card {
  width: calc(33.33% - 20px);
  margin-bottom: 20px;
  padding: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.card img {
  max-width: 100%;
  border-radius: 8px;
}

.card h3 {
  font-size: 1.5rem;
  margin-top: 10px;
}

.card p {
  font-size: 1rem;
  color: #555555;
}

@media (max-width: 768px) {
  .card {
    width: calc(50% - 20px);
  }
}

@media (max-width: 480px) {
  .card {
    width: 100%;
  }
}

pre {
  background-color: #f4f4f4;
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  font-size: 0.9rem;
}

code {
  color: #D34B62;
  font-family: 'Courier New', Courier, monospace;
}

button {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  transform: scale(1.1);
  background-color: #FFA500;
}

footer {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}