:root {
  --primary-color: #0074D9;
  --secondary-color: #EAEAEA;
  --accent-color: #FFA500;
  --text-color: #333;
  --background-color: #F9F9F9;
  --hover-color: #0056b3;
  --animation-duration: 0.5s;
}
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;
}
header {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}
header h1 {
  font-size: 2.5rem;
  margin: 0;
}
header p {
  font-size: 1.2rem;
  margin-top: 0.5rem;
}
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  gap: 20px;
}
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform var(--animation-duration) ease, box-shadow var(--animation-duration) ease;
  overflow: hidden;
  position: relative;
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}
.card img {
  width: 100%;
  height: auto;
  display: block;
}
.card-content {
  padding: 1.5rem;
}
.card-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.card-description {
  font-size: 1rem;
  color: #666;
}
.floating-element {
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hover-effect {
  transition: transform var(--animation-duration) ease;
}
.hover-effect:hover {
  transform: scale(1.1);
}
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
  .grid-container {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1025px) {
  .grid-container {
    grid-template-columns: repeat(3, 1fr);
  }
}