body {
  background: #c5ced7;
}
h1 {
  text-align: center;
  color: #353535;
  font-size: 3.125rem;
  font-family: "Cormorant Garamond", serif;
}

p {
  font-family: "Lato", sans-serif;
  font-weight: 300;
  text-align: center;
  font-size: 1.1rem;
  color: #676767;
}
.container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  place-items: center;
  max-width: 90%;
  margin: 0 auto;
  margin-top: 4rem;
  text-align: center;
}
button {
  margin: 20px;
  width: 130px;
  height: 40px;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 10px 25px;
  font-family: "Lato", sans-serif;
  font-weight: 500;
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
  box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5),
    7px 7px 20px 0px rgba(0, 0, 0, 0.1), 4px 4px 5px 0px rgba(0, 0, 0, 0.1);
  outline: none;
}

/*-------------------- 1 --------------------*/
.btn_1 {
  background: rgb(6, 14, 131);
  background: linear-gradient(
    0deg,
    rgba(6, 14, 131, 1) 0%,
    rgba(12, 25, 180, 1) 100%
  );
}
.btn_1:hover {
  background: rgb(0, 3, 255);
  background: linear-gradient(
    0deg,
    rgba(0, 3, 255, 1) 0%,
    rgba(2, 126, 251, 1) 100%
  );
}

/*-------------------- 2 --------------------*/
.btn_2 {
  background: rgb(96, 9, 240);
  background: linear-gradient(
    0deg,
    rgba(96, 9, 240, 1) 0%,
    rgba(129, 5, 240, 1) 100%
  );
}
.btn_2:before {
  height: 0%;
  width: 2px;
}
.btn_2:hover {
  box-shadow: 4px 4px 6px 0 rgba(255, 255, 255, 0.5),
    -4px -4px 6px 0 rgba(116, 125, 136, 0.5),
    inset -4px -4px 6px 0 rgba(255, 255, 255, 0.2),
    inset 4px 4px 6px 0 rgba(0, 0, 0, 0.4);
}

/*-------------------- 3 --------------------*/
.btn_3 {
  background: rgb(0, 172, 238);
  background: linear-gradient(
    0deg,
    rgba(0, 172, 238, 1) 0%,
    rgba(2, 126, 251, 1) 100%
  );
  line-height: 42px;
  padding: 0;
}
.btn_3 span {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.btn_3:before,
.btn_3:after {
  position: absolute;
  content: "";
  right: 0;
  top: 0;
  background: rgba(2, 126, 251, 1);
  transition: all 0.3s ease;
}
.btn_3:before {
  height: 0%;
  width: 2px;
}
.btn_3:after {
  width: 0%;
  height: 2px;
}
.btn_3:hover {
  background: transparent;
  box-shadow: none;
}
.btn_3:hover:before {
  height: 100%;
}
.btn_3:hover:after {
  width: 100%;
}
.btn_3 span:hover {
  color: rgba(2, 126, 251, 1);
}
.btn_3 span:before,
.btn_3 span:after {
  position: absolute;
  content: "";
  left: 0;
  bottom: 0;
  background: rgba(2, 126, 251, 1);
  transition: all 0.3s ease;
}
.btn_3 span:before {
  width: 2px;
  height: 0%;
}
.btn_3 span:after {
  width: 0%;
  height: 2px;
}
.btn_3 span:hover:before {
  height: 100%;
}
.btn_3 span:hover:after {
  width: 100%;
}

/*-------------------- 4 --------------------*/
.btn_4 {
  background: rgb(255, 27, 0);
  background: linear-gradient(
    0deg,
    rgba(255, 27, 0, 1) 0%,
    rgba(251, 75, 2, 1) 100%
  );
  line-height: 42px;
  padding: 0;
}
.btn_4:hover {
  color: #f0094a;
  background: transparent;
  box-shadow: none;
}
.btn_4:before,
.btn_4:after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  height: 2px;
  width: 0;
  background: #f0094a;
  box-shadow: -1px -1px 5px 0px #fff, 7px 7px 20px 0px #0003,
    4px 4px 5px 0px #0002;
  transition: 400ms ease all;
}
.btn_4:after {
  right: inherit;
  top: inherit;
  left: 0;
  bottom: 0;
}
.btn_4:hover:before,
.btn_4:hover:after {
  width: 100%;
  transition: 800ms ease all;
}

/*-------------------- 5 --------------------*/
.btn_5 {
  background: rgb(247, 150, 192);
  background: radial-gradient(
    circle,
    rgba(247, 150, 192, 1) 0%,
    rgba(118, 174, 241, 1) 100%
  );
  line-height: 42px;
  padding: 0;
}
.btn_5 span {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.btn_5:before,
.btn_5:after {
  position: absolute;
  content: "";
  height: 0%;
  width: 1px;
  box-shadow: -1px -1px 20px 0px rgba(255, 255, 255, 1),
    -4px -4px 5px 0px rgba(255, 255, 255, 1),
    7px 7px 20px 0px rgba(0, 0, 0, 0.4), 4px 4px 5px 0px rgba(0, 0, 0, 0.3);
}
.btn_5:before {
  right: 0;
  top: 0;
  transition: all 500ms ease;
}
.btn_5:after {
  left: 0;
  bottom: 0;
  transition: all 500ms ease;
}
.btn_5:hover {
  background: transparent;
  color: #76aef1;
  box-shadow: none;
}
.btn_5:hover:before {
  transition: all 500ms ease;
  height: 100%;
}
.btn_5:hover:after {
  transition: all 500ms ease;
  height: 100%;
}
.btn_5 span:before,
.btn_5 span:after {
  position: absolute;
  content: "";
  box-shadow: -1px -1px 20px 0px rgba(255, 255, 255, 1),
    -4px -4px 5px 0px rgba(255, 255, 255, 1),
    7px 7px 20px 0px rgba(0, 0, 0, 0.4), 4px 4px 5px 0px rgba(0, 0, 0, 0.3);
}
.btn_5 span:before {
  left: 0;
  top: 0;
  width: 0%;
  height: 0.5px;
  transition: all 500ms ease;
}
.btn_5 span:after {
  right: 0;
  bottom: 0;
  width: 0%;
  height: 0.5px;
  transition: all 500ms ease;
}
.btn_5 span:hover:before {
  width: 100%;
}
.btn_5 span:hover:after {
  width: 100%;
}

/*-------------------- 6 --------------------*/
.btn_6 {
  transition: all 0.3s ease;
  overflow: hidden;
}
.btn_6:after {
  position: absolute;
  content: " ";
  z-index: -1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #1fd1f9;
  background-image: linear-gradient(315deg, #1fd1f9 0%, #b621fe 74%);
  transition: all 0.3s ease;
}
.btn_6:hover {
  background: transparent;
  box-shadow: 4px 4px 6px 0 rgba(255, 255, 255, 0.5),
    -4px -4px 6px 0 rgba(116, 125, 136, 0.2),
    inset -4px -4px 6px 0 rgba(255, 255, 255, 0.5),
    inset 4px 4px 6px 0 rgba(116, 125, 136, 0.3);
  color: #fff;
}
.btn_6:hover:after {
  -webkit-transform: scale(2) rotate(180deg);
  transform: scale(2) rotate(180deg);
  box-shadow: 4px 4px 6px 0 rgba(255, 255, 255, 0.5),
    -4px -4px 6px 0 rgba(116, 125, 136, 0.2),
    inset -4px -4px 6px 0 rgba(255, 255, 255, 0.5),
    inset 4px 4px 6px 0 rgba(116, 125, 136, 0.3);
}

/*-------------------- 7 --------------------*/
.btn_7 {
  position: relative;
  right: 20px;
  bottom: 20px;
  box-shadow: none;
  line-height: 42px;
  -webkit-perspective: 230px;
  perspective: 230px;
}
.btn_7 span {
  background: rgb(0, 172, 238);
  background: linear-gradient(
    0deg,
    rgba(0, 172, 238, 1) 0%,
    rgba(2, 126, 251, 1) 100%
  );
  display: block;
  position: absolute;
  width: 130px;
  height: 40px;
  box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5),
    7px 7px 20px 0px rgba(0, 0, 0, 0.1), 4px 4px 5px 0px rgba(0, 0, 0, 0.1);
  border-radius: 5px;
  margin: 0;
  text-align: center;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.btn_7 span:nth-child(1) {
  box-shadow: -7px -7px 20px 0px #fff9, -4px -4px 5px 0px #fff9,
    7px 7px 20px 0px #0002, 4px 4px 5px 0px #0001;
  -webkit-transform: rotateX(90deg);
  -moz-transform: rotateX(90deg);
  transform: rotateX(90deg);
  -webkit-transform-origin: 50% 50% -20px;
  -moz-transform-origin: 50% 50% -20px;
  transform-origin: 50% 50% -20px;
}
.btn_7 span:nth-child(2) {
  -webkit-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  transform: rotateX(0deg);
  -webkit-transform-origin: 50% 50% -20px;
  -moz-transform-origin: 50% 50% -20px;
  transform-origin: 50% 50% -20px;
}
.btn_7:hover span:nth-child(1) {
  box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5),
    7px 7px 20px 0px rgba(0, 0, 0, 0.1), 4px 4px 5px 0px rgba(0, 0, 0, 0.1);
  -webkit-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  transform: rotateX(0deg);
}
.btn_7:hover span:nth-child(2) {
  box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5),
    7px 7px 20px 0px rgba(0, 0, 0, 0.1), 4px 4px 5px 0px rgba(0, 0, 0, 0.1);
  color: transparent;
  -webkit-transform: rotateX(-90deg);
  -moz-transform: rotateX(-90deg);
  transform: rotateX(-90deg);
}

/*-------------------- 8 --------------------*/
.btn_8 {
  background: #b621fe;
  border: none;
  z-index: 1;
}
.btn_8:after {
  position: absolute;
  content: "";
  width: 0;
  height: 100%;
  top: 0;
  right: 0;
  z-index: -1;
  background-color: #663dff;
  border-radius: 5px;
  box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5),
    7px 7px 20px 0px rgba(0, 0, 0, 0.1), 4px 4px 5px 0px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.btn_8:hover {
  color: #fff;
}
.btn_8:hover:after {
  left: 0;
  width: 100%;
}
.btn_8:active {
  top: 2px;
}

@media screen and (max-width: 600px) {
  .container {
    grid-template-columns: repeat(1, 1fr);
  }
  h1 {
    font-size: 2.5rem;
  }
}