@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  user-select: none;
  outline: none;
  font-family: "Poppins", "Courier New", Courier, monospace;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.box {
  position: relative;
  width: 300px;
  height: 600px;
  border-radius: 50px;
  background: #666;
}

.inner {
  position: absolute;
  inset: 3px;
  background: #000;
  border-radius: 48px;
  display: flex;
  justify-content: center;
}

.calc {
  position: absolute;
  inset: 5px;
  background: #000;
  border-radius: 48px;
}

.create {
  width: 100%;
  height: 35%;
  background-color: #000;
  border-top-left-radius: 48px;
  border-top-right-radius: 48px;
  font-size: 48px;
  font-weight: 500;
  color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 0 10px;
  overflow: hidden;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
}

.buttons > button {
  width: 60px;
  height: 60px;
  border: none;
  border-radius: 50%;
  margin: 0 5px 12px;
  font-size: 25px;
  cursor: pointer;
  transition: 0.2 linear;
}
.buttons .white {
  background: #ccc;
}
.buttons .white:active {
  animation: 0.5s white-color ease-in-out;
}

.buttons .numbers {
  background: #444;
  color: #fff;
}
.buttons .numbers:active {
  animation: 0.5s white-color ease-in-out;
}
.buttons .zero {
  width: 130px;
  padding-left: 23px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-right: 5px;
}

@keyframes white-color {
  50% {
    background: #fff;
  }
  75% {
    background: #fff;
  }
}
.buttons button.orange {
  background: orange;
  color: #fff;
}
.buttons button.orange:focus {
  background: #fff;
  color: orange;
  transform: scale(0.97);
}