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

:root {
  --Yellow: #F0DB4F;
  --White: #F4F4F4;
}

body {
  background-color: #1A1A1A;
  color: white;
  font-family: 'Ubuntu', sans-serif;
  font-weight: 700;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 1.875rem;
}

main *::selection {
  background-color: var(--Yellow);
}


p {
  font-weight: 500;
}

.NoSelect {
  user-select: none;
}

/**/

.colorYellow {
  color: var(--Yellow);
}

/*CONTAINER*/
.container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: var(--White);
  color: black;
  width: 100%;
  margin-block-start: 3rem;
  border-radius: 0.375rem;
}

.container h2 {
  margin-block: .8rem;
}

.container p {
  font-size: 1.5rem;
  font-weight: 500;
}

.counter {
  padding: .8rem;
}

.counter .large {
  font-size: 3rem;
  margin-block: 1.2rem;
  font-weight: 700;
}

.line {
  width: 100%;
  height: 0.4rem;
  background-color: var(--Yellow);
}

/**/

.btn {
  width: 6rem;
  font-size: 4rem;
  font-weight: 700;
  border-radius: .4rem;
  padding: .3rem;
  border: .2rem black groove;
  color: var(--Yellow);
  background-color: black;
  transition: .1s ease;
  user-select: none;
}

.btn:hover {
  cursor: pointer;
}

.btn:active {
  background-color: transparent;
  color: black;
}

.counter .small {
  font-size: medium;
  margin-top: 1rem;
}

#negative {
  display: none;
}

footer {
  margin-block: 2rem;
}