*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  /* background: linear-gradient(45deg, #FF2400, #39FF14); */
  /* background: linear-gradient(45deg, #0a0a0a, #3a4452); */
  background: linear-gradient(45deg, #f8eeec, #e7decc);
}

.main-container {
  border: 1px solid #717377;
  padding: 20px;
  border-radius: 16px;
  background: transparent;
  /* background-color: #fec5e5; */
  box-shadow: 0px 3px 15px rgba(113, 115, 119, 0.5);
  width: fit-content;
  height: 40vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.main-container h1 {
  color: #ffffff;
  margin-bottom: 10px;
}

#display-result {
  font-weight: 900;
  margin-bottom: 10px;
}

#display-alert-msg {
  font-weight: 900;
  margin-bottom: 10px;
}

.btn {
  border: none;
  width: 120px;
  height: 30px;
  border-radius: 4px;
  font-weight:600;
  margin-bottom: 20px;
  color: #ffffff;
}

.decrease {
  background-color: #FF2400;
  /* color: #fff55f; */
}

.reset {
  background-color: #3944bc;
  /* background-color: #DCDCDC; */
  /* color: #fff55f; */
}

.increase {
  background-color: #39FF14;
  /* color: #fff55f; */
}

.alert-red {
  color: red;
}

@media screen and (max-width: 274px) {
  .main-container {
    background-color: #9a7b4f;
    padding: 0px;
  }
  .main-container h1 {
    font-size: 7px;
    margin-bottom: 20px;
  }
  .main-container p {
    font-size: 10px;
  }
}

@media screen and (min-width: 274px) and (max-width: 408px){
  .main-container {
    background-color: #DCDCDC;
    padding: 5px;
    max-height: 170px;
  }
  .main-container h1 {
    font-size: 15px;
    margin-bottom: 5px;
  }
  .main-container p {
    font-size: 10px;
  }
  .button-box {
    margin: 0px;
  }
  .btn {
    width: 80px;
  }
}


@media screen and (min-width: 408px) and (max-width: 809px){
  .main-container {
    background-color: #a0d9ef;
    width: 300px;
    height: 150px;
    padding: 10px;
  }
  .main-container h1 {
    font-size: 15px;
    margin-bottom: 8px;
  }
  .main-container p {
    font-size: 12px;
    font-weight: 900;
  }
  .button-box {
    margin: 0px;
  }
  .btn {
    width: 73px;
  }
}