/* Mobile-First Approach */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-size: 16px;
  line-height: 1.5;
}

/* Navigation */
nav {
  width: 100%;
  padding: 1rem;
}

/* Main Content */
main {
  padding: 1rem;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
}

/* Grid/Flex for mobile */
.container {
  display: flex;
  flex-direction: column;
  width: 100%;
}

/* Media Queries for larger screens */
@media (min-width: 768px) {
  body {
    font-size: 18px;
  }
  
  .container {
    flex-direction: row;
  }
}