:root {
  --image-height: 288px;
  --image-width: 316px;
}

* {
  margin: 0;
  padding: 0;
}

#intro {
  color: #252525;
  font-family: "Nunito Sans", sans-serif;
  margin: 24px auto 64px auto;
  text-align: center;
  width: 93%;
}

#heading {
  font-size: 46px;
  font-weight: 700;
  margin: 0 1.5px 24px 1.5px;
}

#sub-heading {
  font-size: 24px;
  font-weight: 600;
  margin: 0 1.5px 24px 1.5px;
  opacity: 80%;
}

.explore-btn {
  background-color: #252525;
  border: 1px solid #000;
  border-radius: 16px;
  color: #fff;
  cursor: pointer;
  font-size: 18px;
  line-height: 18px;
  margin-bottom: 11.5px;
  padding: 18px 48px;
}

#image-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, 1fr);
  justify-items: center;
  margin-bottom: 64px;
}

#image-grid img {
  border-radius: 16px;
  height: calc(var(--image-height) / 1.8);
  object-fit: cover;
  width: calc(var(--image-width) / 1.8);
}

@media screen and (min-width: 768px) {
  #intro {
    margin: 64px auto 52px auto;
    width: 75%;
  }

  #heading {
    letter-spacing: 0;
    line-height: 60px;
  }

  #image-grid {
    grid-template-columns: repeat(2, 1fr);
    margin: 0 auto 64px;
  }

  #image-grid img {
    height: var(--image-height);
    width: var(--image-width);
  }
}

@media screen and (min-width: 992px) {
  #intro {
    margin-bottom: 52px;
    width: 610px;
  }

  #heading {
    font-size: 64px;
    line-height: 80px;
    margin-bottom: 24px;
  }

  #sub-heading {
    font-size: 26px;
    margin-bottom: 24px;
  }

  #image-grid {
    grid-template-columns: repeat(4, 1fr);
    height: 592px;
    width: 1312px;
  }
}