* {
  font-family: sans-serif;
}
h1 {
  font-size:2.5rem;
  font-weight: bold;
}
.container {
  display: flex;
  flex-direction: column;
  max-width: 300px;
  padding: 20px;
  margin: 0 auto;
}

.calculator {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.flex {
  display: flex;
  flex-direction: row;
}

input {
  border: 1px solid lightblue;
  padding: 2px;
  width: 100%;
}

input:focus {
  border: none;
}

.text-center {
  text-align: center;
}

.justify-center {
  justify-content: center;
}

.button {
  border: none;
  background: white;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 5px;
  font-size: 15px;
  background: lightblue;
  margin: 0 auto;
}
.button:hover {
  opacity: 0.8;
}

.bold {
  font-weight: bold;
}