/*CSS Varibles*/
:root {
  --primary: #ddd;
  --dark: #333;
  --light: #fff;
  --shadow: 0 1px 5px rgba(104, 104, 104, 0.8);
}

html {
 box-sizing: border-box;
 font-family: Arial, Helvetica, sans-serif;
 color: var(--dark);
}



body {
   background: #ccc;
   margin: 10px 50px;
   line-height: 1.4;
}

header {
   margin-top: 5px;
   background: var(--dark);
   color: var(--light);
   text-align: center;
   padding: 5px;
   box-shadow: var(--shadow);
    
}

.wrapper {
 display: grid;
 grid-gap: 20px;
}

/* Navigation */
.main-nav ul {
  display: grid;
  grid-gap: 20px;
  padding: 0;
  list-style: none;
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

.main-nav a {
  background: var(--primary);
  display: block;
  text-decoration: none;
  padding: 0.8rem;
  text-align: center;
  color: var(--dark);
  text-transform: uppercase;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
}

.main-nav a:hover {
  backgdround: var(--dark);
  color: var(--light);
}

.questions {
    width:60%;
    text-align: left;
    margin:auto;
    background:white;
    padding:20px;
    box-shadow: var(--shadow);
}

  /* footer */
footer {
   margin-top: 2rem;
   background: var(--dark);
   color: var(--light);
   text-align: center;
   padding: 1rem;
}

.main-nav ul {
  grid-template-columns: 1fr ;
}