html {
  background: linear-gradient(150deg, #1f4569be, #515216bd);
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}
body {
  margin: auto;
  font-family: 'Roboto Slab', serif;
  color: grey;
}
.logo {
  position: absolute;
  margin: -45px auto;
  text-align: center;
  opacity: 0.8;
  width: 100%;
  font-family: 'Bungee Spice';
  color: grey;
}
.buttons {
  display: grid;
  justify-content: center;
}

/* Button Effect */
button {
  text-align: center;
  margin: 0 auto;
  height: 140px;
  width: 350px;
  position: relative;
  display: inline-block;
  cursor: pointer;
  outline: none;
  border: 0;
  vertical-align: middle;
  text-decoration: none;
  font-size: 35px;
  font-family: inherit;
  font-weight: 600;
  color: #000000;
  background: #fff0f0;
  border: 2px solid #d2d427;
  border-radius: 1.6em;
  transition: transform 0.25s;
  transform-style: preserve-3d;
}
button:before {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #1c5285cc;
  border-radius: inherit;
  box-shadow: 0 0 0 2px #aeb185, 0 0.35em 0 0 #d1d427a2;
  transform: translate3d(0, 0.35em, -1em);
  transition: transform 0.15s, box-shadow 0.15s;
}
button:hover {
  background: rgb(202, 202, 202);
  transform: translate(0, 0.25em);
}
button:hover:before {
  box-shadow: 0 0 0 2px #aab185, 0 0.2em 0 0 #d2d427;
  transform: translate3d(0, 0.2em, -1em);
}
button:active {
  background: #000000;
  color: #e08012;
  transform: translate(0em, 0.45em);
}
button:active:before {
  box-shadow: 0 0 0 2px #7e7d7d, 0 0 #ffe3e2;
  transform: translate3d(0, 0, -1em);
}
/* змінюємо CSS для media queries */
@media (max-width: 600px) {
  .logo {
    margin: 0 auto;
    font-size: 30px;
  }
  .buttons {
    grid-template-columns: repeat(2, 150px);
    grid-gap: 20px;
    padding-top: 60px;
  }
  button{
    height: 45px;
    width: 140px;
    font-size: 10px;
    border-radius: 1.6em;
  }
}
@media (min-width: 601px) and (max-width: 1024px) {
  .logo {
    margin: 0 auto;
    font-size: 30px;
  }
  .buttons {
    grid-template-columns: repeat(4, 150px);
    grid-gap: 20px;
    padding-top: 60px;
  }
  button{
    height: 45px;
    width: 140px;
    font-size: 11px;
    border-radius: 1.6em;
  }
}
@media (min-width: 1025px) {
  .logo {
    margin: 0 auto;
    font-size: 70px;
  }
  .buttons {
    grid-template-columns: repeat(4, 325px);
    grid-gap: 50px;
    padding-top: 110px;
  }
  button{
    height: 140px;
    width: 350px;
    font-size: 35px;
    border-radius: 1.6em;
  }
}
@media (min-width: 2560px) {
  .logo {
    margin: 0 auto;
    font-size: 101px;
  }
  .buttons {
    grid-template-columns: repeat(4, 460px);
    grid-gap: 80px;
    padding-top: 155px;
  }
  button{
    height: 200px;
    width: 500px;
    font-size: 50px;
    border-radius: 1.6em;
  }
}
@media (min-width: 3840px) {
  .logo {
    margin: 0 auto;
    font-size: 140px;
  }
  .buttons {
    grid-template-columns: repeat(4, 650px);
    grid-gap: 110px;
    padding-top: 220px;
  }
  button{
    height: 280px;
    width: 700px;
    font-size: 72px;
    border-radius: 1.6em;
  }
}
@media (min-width: 6000px) {
  .logo {
    margin: 0 auto;
    font-size: 235px;
  }
  .buttons {
    grid-template-columns: repeat(4, 1100px);
    grid-gap: 175px;
    padding-top: 360px;
  }
  button{
    height: 470px;
    width: 1200px;
    font-size: 125px;
    border-radius: 1.6em;
  }
}