:root{
--color1-red: hsl(0, 78%, 62%);
--color2-Cyan: hsl(180, 62%, 55%);
--color3-Orange: hsl(34, 97%, 64%);
--color4-Blue: hsl(212, 86%, 64%);
--color5-Grey: hsl(234, 12%, 34%);
--color6-Grey2: hsl(212, 6%, 44%);
--color7-White: hsl(0, 0%, 100%);
--font-poppins: 'poppins';
--font-extralight: 200;
--font-regular: 400;
--font-semibold: 600;
}
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  width: 100%;
  height: 100vh;
}
main{
  margin: 0 auto;
max-width: 1000px;
font-family: var(--font-poppins);
font-size: 15px;
}
h1{
  text-align: center;
  font-family: var(--font-poppins);
}
p{
  font-size: 15px;
}
.extra-light{
  font-weight: var(--font-extralight);
}
.semi-bold{
  font-family: var(--font-poppins);
  font-weight: var(--font-semibold);
}
.sub-heading{
  text-align: center;
 font-weight: var(--font-extralight);
}
section{
  padding-top: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap:20px;
}
.pair-of-box{
  display: flex;
  flex-direction: column;
  gap: 25px;
}
.box{
  padding: 20px;
  border-radius: 5px;
  box-shadow: 10px 15px 8px hsla(212, 6%, 44%, 0.1);
}
.box.one{
  border-top: 3px solid var(--color2-Cyan);
align-self: center;
}
.box.two{
  border-top: 3px solid var(--color1-red);
}
.box.three{
  border-top: 3px solid var(--color3-Orange);
}
.box.four{
  border-top: 3px solid var(--color4-Blue);
  align-self: center;
}
img{
  display: block;
  margin-left: auto;
  margin-top: 40px;
}
h2{
  font-weight: var(--font-semibold);
  font-size: 15px;
}
footer{
  text-align: center;
  font-family: var(--font-poppins);
}
a{
  text-decoration: none;
}
@media(max-width: 768px){
  main{
    margin: 20px 20px;
  }
  section{
    display: flex;
    flex-direction: column;
  }
  .pair-of-box{
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
}