style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Nova Square", sans-serif;
  background-color: #d9d9d9;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  border: 5px groove white;
  width: 300px;
  height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: radial-gradient(circle, #a10909, #fafafa);
  box-shadow: 10px -10px 1px red;
  border-radius: 10px;
}

.title {
  color: red;
  text-shadow: 2px -2px 1px rgb(255, 255, 255);
}

.inputNumber {
  height: 1.5rem;
  width: 6rem;
  text-align: center;
  border-radius: 5px;
}

.button,
.resetButton {
  height: 1.5rem;
  width: 4rem;
  border-radius: 5px;
  background-color: rgb(9, 92, 9);
  margin-left: 10px;
  cursor: pointer;
  border: none;
  color: white;
}

.resetButton {
  background-color: rgb(104, 0, 0);
}

.text {
  border: 2px inset #404040;
  width: 85%;
  height: 1.5rem;
  border-radius: 5px;
  background-color: black;
  color: black;
  text-align: center;
  font-size: 0.9rem;
  padding-top: 2px;
}

@media screen and (max-width: 162px) {
  .title {
    font-size: 1rem;
  }
  .inputNumber {
    width: 4rem;
    font-size: 0.6rem;
  }
  .button,
  .resetButton {
    width: 1.8rem;
    font-size: 0.5rem;
  }
  .text {
    width: 90%;
    font-size: 0.6rem;
  }
}