/* Base styles */
body { 
  font-family: Arial, sans-serif; 
  padding: 15px; 
  background-color: #f0f2f5; 
  color: #333; 
  margin: 0;
}

h1, h2 {
  text-align: center; 
  margin: 10px 0 20px 0;
}

h1 { color: #2c3e50; font-size: 1.8em; }
h2 { color: #34495e; font-size: 1.4em; }

/* Grid layout */
.grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); 
  gap: 15px; 
  max-width: 1000px; 
  margin: 0 auto;
}

/* Card styles */
ul { 
  list-style: none; 
  padding: 15px; 
  background: #fff; 
  border-radius: 10px; 
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  transition: transform 0.2s, box-shadow 0.2s;
}

ul:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 10px rgba(0,0,0,0.15);
}

li { 
  margin: 6px 0; 
}

li b { 
  display: block; 
  margin-bottom: 8px; 
  font-size: 1em; 
  color: #1f618d;
}

a { 
  text-decoration: none; 
  color: #0066cc; 
  padding: 5px 8px;
  border-radius: 5px;
  transition: background-color 0.2s, color 0.2s;
}

a:hover { 
  background-color: #0066cc; 
  color: #fff;
}

/* Responsive adjustments */
@media screen and (max-width: 768px) {
  body {
    padding: 10px;
    font-size: 0.95em;
  }

  h1 { font-size: 1.5em; }
  h2 { font-size: 1.2em; }

  .grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
  }

  ul {
    padding: 10px;
  }

  a {
    padding: 8px 10px;
    font-size: 0.95em;
  }
}

@media screen and (max-width: 480px) {
  h1 { font-size: 1.3em; }
  h2 { font-size: 1em; }

  .grid {
    grid-template-columns: 1fr; /* single column for small screens */
    gap: 10px;
  }

  ul {
    padding: 8px;
  }

  a {
    display: block;
    text-align: center;
    padding: 10px;
  }
}