@font-face {
  font-family: Digital7Font;
  src: url(../digital_font.ttf);
}
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
html {
  font-family: "Montserrat", sans-serif;
  overflow-y: hidden;
}

section {
  height: 100vh;
  display: flex;
  align-items: center;
  padding: 30rem;
  justify-content: center;
}

.container {
  width: 36vw;
  height: fit-content;
  margin: auto;
  background-color: var(--container-bg);
  border-radius: 28px;
  position: absolute;
  top: 50%;
  transform: translate(0, -50%);
}

.all_button {
  border-radius: 28px;
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-content: center;
  background-color: var(--container-bg);
}

.display {
  font-family: "Digital7Font", sans-serif;
  grid-column: span 4;
  height: 8vw;
  width: 30vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: auto;
  margin-top: 30px;
  margin-bottom: 30px;
  background: var(--display-bg);
  box-shadow: var(--display-shadow);
  border: none;
  border-radius: 32px;
  color: rgb(26, 25, 25);
  text-align: end;
  margin: 2vw auto 1vw;
  padding: 0 30px 0;
  font-size: 2.2vw;
}

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--btns-color);
  box-shadow: var(--btn-shadow);
  border: none;
  border-radius: 50%;
  width: 3.7vw;
  height: 3.7vw;
  color: #1d2934;
  line-height: 53px;
  margin: 10px;
  font-weight: bold;
  font-size: 2vw;
  text-align: center;
  cursor: pointer;
  margin: 1vw auto 1vw;
}

.button:hover {
  box-shadow: var(--btn-hover-shadow);
}

.button:active {
  opacity: 1;
  background-color: #d1ced1;
  box-shadow: 0px 0px 18px #888888 inset;
}

.prevent-select {
  -webkit-user-select: none; /* Safari */
  -ms-user-select: none; /* IE 10 and IE 11 */
  user-select: none; /* Standard syntax */
}
.prevent-select {
  -webkit-user-select: none; /*Safari */
  -ms-user-select: none; /*IE 10 and IE 11 */
  user-select: none; /* Standard syntax*/
}

@media screen and (max-width: 900px) {
  .container {
    width: 40vw;
  }
  .button {
    width: 6vw;
    height: 6vw;
    font-size: 2.5vw;
  }
  .display {
    width: 34vw;
    font-size: 2.5vw;
  }
}
@media screen and (max-width: 700px) {
  .container {
    width: 50vw;
  }
  .button {
    font-size: 3vw;
  }
  .display {
    width: 41vw;
    height: 10vw;
    font-size: 3vw;
  }
}
@media screen and (max-width: 550px) {
  .container {
    width: 300px;
  }
  .button {
    width: 40px;
    height: 40px;
    font-size: 15px;
    margin: 6px auto 6px;
  }
  .display {
    width: 240px;
    height: 60px;
    font-size: 15px;
    margin: 10px auto 10px;
  }
}

.waviy {
  position: relative;
  -webkit-box-reflect: below -20px linear-gradient(transparent, rgba(0, 0, 0, 0.2));
  /* font-size: 60px; */
  font-size: 150%;
  font-size: 4rem;
  text-align: center;
}
.waviy span {
  font-family: "Alfa Slab One", cursive;
  display: inline-block;
  color: black;
  color: var(--text-bg);
  animation: waviy 1s infinite;
  animation-delay: calc(0.1s * var(--i));
}

@keyframes waviy {
  0%,
  40%,
  100% {
    transform: translateY(0%);
  }
  20% {
    transform: translateY(-40%);
  }
}

.bubbles {
  position: absolute;
  bottom: -120px;
  display: flex;
  flex-wrap: wrap;
  margin-top: 70px;
  width: 100%;
  justify-content: space-around;
  z-index: -1;
}
.bubbles span {
  height: 60px;
  width: 60px;
  background: rgba(255, 255, 255, 0.1);
  animation: move 10s linear infinite;
  position: relative;
  overflow: hidden;
  border-radius: 50%;
}
@keyframes move {
  100% {
    transform: translateY(-100vh);
  }
}
.bubbles span.one {
  animation-delay: 2.2s;
  transform: scale(2.15);
}
.bubbles span.two {
  animation-delay: 3.5s;
  transform: scale(1.55);
}
.bubbles span.three {
  animation-delay: 0.2s;
  transform: scale(0.35);
}
.bubbles span.four {
  animation-delay: 6s;
  transform: scale(2.15);
}
.bubbles span.five {
  animation-delay: 7s;
  transform: scale(0.5);
}
.bubbles span.six {
  animation-delay: 4s;
  transform: scale(2.5);
}
.bubbles span.seven {
  animation-delay: 3s;
  transform: scale(1.5);
}
.bubbles span:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 60px;
  width: 40%;
  transform: skew(45deg) translateX(150px);
  background: rgba(255, 255, 255, 0.15);
  animation: mirror 3s linear infinite;
}
@keyframes mirror {
  100% {
    transform: translateX(-450px);
  }
}
.bubbles span.one:before {
  animation-delay: 1.5s;
}
.bubbles span.two:before {
  animation-delay: 3.5s;
}
.bubbles span.three:before {
  animation-delay: 2.5s;
}
.bubbles span.four:before {
  animation-delay: 7.5s;
}
.bubbles span.five:before {
  animation-delay: 4.5s;
}
.bubbles span.six:before {
  animation-delay: 0.5s;
}
.bubbles span.seven:before {
  animation-delay: 6s;
}