body {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  height: 100vh;
  font-family: Arial, sans-serif;
}

#timer {
  font-size: 80px;
  margin-bottom: 30px;
}

#exercise,
#rest {
  font-size: 100px;
  margin-bottom: 50px;
  color: darkgreen;
}

#nextExercise p {
  font-size: 20px;
  margin-bottom: 50px;
  color: rgb(10, 1, 181);
}

.buttonVerde {
  background-color: #4CAF50;
  font-size: 24px;
}

/* Green */
.buttonRosso {
  background-color: #f44336;
  font-size: 24px;
}

/* Red */


*,
*::after,
*::before {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2.25rem;
}

body {
  background-color: #f2f1ed;
  color: #de4848;
}

.flip-card {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  box-shadow: 0 2px 3px 0 rgba(0, 0, 0, .2);
  border-radius: .1em;
}

.top,
.bottom,
.flip-card .top-flip,
.flip-card .bottom-flip {
  height: .75em;
  line-height: 1;
  padding: .25em;
  overflow: hidden;
}

.top,
.flip-card .top-flip {
  background-color: #f7f7f7;
  border-top-right-radius: .1em;
  border-top-left-radius: .1em;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.bottom,
.flip-card .bottom-flip {
  background-color: white;
  display: flex;
  align-items: flex-end;
  border-bottom-right-radius: .1em;
  border-bottom-left-radius: .1em;
}

.flip-card .top-flip {
  position: absolute;
  width: 100%;
  animation: flip-top 250ms ease-in;
  transform-origin: bottom;
}

@keyframes flip-top {
  100% {
    transform: rotateX(90deg);
  }
}

.flip-card .bottom-flip {
  position: absolute;
  bottom: 0;
  width: 100%;
  animation: flip-bottom 250ms ease-out 250ms;
  transform-origin: top;
  transform: rotateX(90deg);
}

@keyframes flip-bottom {
  100% {
    transform: rotateX(0deg);
  }
}

.container {
  display: flex;
  gap: .5em;
  justify-content: center;
}

.container-segment {
  display: inline-block;
  flex-direction: column;
  gap: .1em;
  align-items: center;
}

.segment {
  display: flex;
  gap: .1em;
}

.segment-title {
  font-size: 1rem;
}

#timer {
  width: 50%;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

footer {
  font-size: 10px;
  color: black;
  bottom: 0;
  width: 100%;
  height: 50px;
  margin-top: 20px;
  text-align: center;
  display: block;
}

content {
  min-width: 400px;
  min-height: 400px;
  width: 95%;
  height: 95%;
  text-align: center;
  vertical-align: middle;
}

.buttons {
  margin-left: auto;
  margin-right: auto;
  margin-top: 50px;
}

#basicUsage {
  color: black;
  font-size: 40px;
}

.sessionTitle {
  font-size: 20px;
  color: black;
}