html {
  font-family: 'Fira Sans', sans-serif;
  font-size: 20px;
  letter-spacing: 0.8px;
  min-height: 100vh;
  color: #d8e9ef;
  background-image: linear-gradient(#28acbb 0%, #ac2a1e 100%);
  background-size: cover;
}

h1 {
  margin: 0 auto 10px auto;
  color: #d8e9ef;
}

p {
  margin: 0;
}

.app-message {
  height: 20px;
  margin: 10px auto 20px auto;
}

.app-container {
  width: 250px;
  height: 420px;
  margin: 40px auto;
  text-align: center;
  border-radius: 5px;
  padding: 20px;
}

.app-circle {
  position: relative;
  margin: 0 auto;
  width: 200px;
  height: 200px;
}

.circle-shape {
  pointer-events: none;
}

.semi-circle {
  position: absolute;
  width: 100px;
  height: 200px;
  box-sizing: border-box;
  border: solid 6px;
}

.left-side {
  top: 0;
  left: 0;
  transform-origin: right center;
  transform: rotate(0deg);
  border-top-left-radius: 100px;
  border-bottom-left-radius: 100px;
  border-right: none;
  z-index: 1;
}

 .right-side {
  top: 0;
  left: 100px;
  transform-origin: left center;
  transform: rotate(0deg);
  border-top-right-radius: 100px;
  border-bottom-right-radius: 100px;
  border-left: none;
}

.circle {
  border-color: #8e69a0;
}

.circle-mask {
  border-color: #3b7ba0;
}

.app-counter-box {
  font-family: 'Droid Sans Mono', monospace;
  font-size: 250%;
  position: relative;
  top: 50px;
  color: #d8e9ef;
}

button {
  font-size: 80%;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  background: none;
  outline: none;
  color: #d8e9ef;
}

button:hover {
  color: #90c0d1;
}

.btn-start{
  position: relative;
  top: 50px;
}

.minSelector, .secSelector, .btn-re{
  display: flex;
  justify-content: center;
  align-items: center;
}

.min-selector, .sec-selector{
  border: 2px solid #403769;
  background-color: lightblue;
}


.selector{
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 10px auto;
  width: 100%;
  padding-bottom: 20px;
}

.secSelector{
  position: relative;
  width: 50px;
}

.btn-re{
  position: relative;
}