/* ===== Base Styles ===== */
body {
  font-family: Arial, Helvetica, sans-serif;
  background: white;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 1075px; /* max width for desktop */
  margin: 20px auto;
  background: #d9f0ff;
  padding: 20px;
  text-align: center;
}

/* ===== Header ===== */
header h1 {
  margin-bottom: 10px;
}

nav {
  border-top: 2px solid black;
  border-bottom: 2px solid black;
  padding: 10px 0;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

nav li {
  display: inline-block;
  margin: 0 15px;
}

nav a {
  color: purple;
  text-decoration: none;
}

nav a:visited {
  color: purple;
}

/* ===== Boxes Section ===== */
.boxes {
  margin-top: 40px;
  text-align: center; /* centers boxes on smaller screens */
}

/* ===== Shared Box Styles ===== */
.box {
  display: inline-block;
  vertical-align: top;
  width: 48%; /* fluid width */
  margin: 1%;
  padding: 20px;
  text-align: left;
  box-sizing: border-box;
}

/* Left Box */
.left-box {
  background: white;
  border: 3px solid green;
  box-shadow: 4px 4px 10px rgba(0,0,0,0.3);
  height: auto; /* flexible height */
}

/* Right Box */
.right-box {
  background: magenta;
  border: 3px solid blue;
  border-radius: 15px;
  height: auto; /* flexible height */
  color: white;
}

/* Footer */
footer {
  margin-top: 40px;
  text-align: left;
}

/* ===== Media Queries ===== */

/* Tablets / Medium Screens */
@media (max-width : 20px ){
  .container {
    width: 90%;
  }

  .box {
    display: block;
    width: 100%;
    margin: 20px auto;
    text-align: center;
  }

  nav li {
    display: block;
    margin: 10px 0; /* vertical spacing for touch */
  }

  nav ul {
    padding: 0;
    margin: 0;
  }

  nav {
    text-align: center; /* center navigation */
  }
}

/* Mobile Screens */
@media (max-width : 20px ){
  .container {
    width: 100%; /* full width */
    padding: 10px;
  }

  header h1 {
    font-size: 1.5em;
  }

  .box {
    width: 100%;
    margin: 10px 0;
  }

  .right-column {
    display: block;
    margin: 10px 0;
  }
}/* CSS Document */