html * {
  box-sizing: border-box;
}

#sudoku {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-gap: 1px;
  margin-bottom: 8px;
  border: 3px solid #000;
}

#sudoku input {
  width: 50px;
  height: 50px;
  font-size: 2rem;
}

#solver {
  width: 100%;
  background-color: orange;
  font-size: 2rem;
  margin: 4px 0;
}

button {
  background-color: mediumseagreen;
  color: #fff;
  font-size: 1.2rem;
  padding: 4px;
  border-radius: 5px;
}

button:hover {
  filter: brightness(0.9);
}

.container {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.odd-section {
  background-color: #ddd;
}

.incorrect {
  background-color: #f59da9ff;
}

.btn-container {
  width: 464px;
  display: flex;
  flex: 0;
  flex-direction: column;
}

.generator-container {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(3, 1fr);
}