styles.css

*,*::after,*::before {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: #f5f5f5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}
header{
  display: flex;
  justify-content: center;
  width: 100%;
}
.title{
  text-align: center;
}
#resultado {
  font-weight:  bold;
  font-size:  6rem;
  text-align: center;
}
.instructions{
  margin: 20px;
}
.canvas-container {
    margin: 0 auto;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f5f5f5;
}
.buttons{
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}
.btn-clean{
  background-color: #f5f5f5;
  color: black;
  border: 1px solid black;
  padding: 10px 20px;
  border-radius: 5px;
}
.btn-clean:hover{
  background-color: #000000;
  color: white;
  transition: all 0.3s;
}
.btn-submit{
  background-color: #000000;
  color: white;
  border: 1px solid #fff;
  padding: 10px 20px;
  border-radius: 5px;
}
.btn-submit:hover{
  background-color: #f5f5f5;
  color: black;
  transition: all 0.3s;
}



.btnDarkMode{
  margin-left: 45px;
  margin-top: 10px;
  border: none;
  width: 75px;
  height: 30px;
  border-radius: 20px;
  background-color: none;
  border: 1px solid black;
}
.ball{
  width: 20px;
  height: 20px;
  background-color: black;
  border-radius: 50%;
  transition: all 0.3s;
}
.ball.dark-mode{
  transform: translateX(25px);
}
.dark-mode {
  background-color: black;
  color: white;
}