body {
  background-color: #000000;
  color: #fff;
}

p {
  margin: 0.5rem;
  text-align: center;
}

p:first-child {
  margin-top: 15px;
}

#resume {
  display: none;
}

.time {
  font-weight: 20px;
  color: #fff;
}

.time .minutes,
.time .seconds {
  margin: 0 -2px;
}

.time .colon {
  position: relative;
  bottom: 1px;
  margin: 0 -2px;
}

.adjust {
  width: 400px;
  margin: auto;
  text-align: center;
}

.adjust .difficulty {
  width: 150px;
}

.immutable {
  font-weight: bold;
}

.numbers-bar {
  width: 475px;
  margin: 5px auto;
  box-sizing: border-box;
}

.numbers-bar .number {
  background-color: #ffddbb;
  float: left;
  border: 1px solid #640c01;
  height: 50px;
  width: 50px;
  color: #000;
  box-sizing: content-box;
  font-size: 30px;
  text-align: center;
  cursor: pointer;
}

.numbers-bar .number:nth-child(3),
.numbers-bar .number:nth-child(6) {
  margin-right: 3px;
}

.numbers-bar .number:hover {
  background-color: #fff4f4;
}

.sudoku {
  width: 475px;
  margin: auto;
}

.sudoku .square {
  float: left;
  border: 1px solid #000;
}

.sudoku .square .cell {
  float: left;
  position: relative;
  height: 50px;
  width: 50px;
  background: #222;
  border: 1px solid #ffffff;
  box-sizing: content-box;
}

.sudoku .square .cell:hover {
  background-color: #444;
}

.sudoku .square .cell:hover .label {
  color: #fff;
}

.sudoku .square .cell.selected {
  background-color: #888;
}

.sudoku .square .cell.selected .label {
  color: #fff;
}

.sudoku .square .cell.error {
  background-color: #E58080;
}

.sudoku .square .cell.valid {
  background-color: #95E595;
}

.sudoku .square .cell .label {
  position: absolute;
  color: #ffffffa5;
  top: 1px;
  left: 2px;
  font-size: 12px;
}

.sudoku .square .cell .value {
  display: block;
  font-size: 30px;
  color: #fff;
  width: 100%;
  height: 100%;
  text-align: center;
}

.sudoku .square .cell:nth-child(3n+1) {
  clear: both;
}


/* Styling for all buttons */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  text-align: center;
  text-decoration: none;
  color: white;
  cursor: pointer;
  border: 1px solid white;
}

/* Styling for the primary button */
.btn-primary {
  background-color: #007bff;
}

/* Styling for the info button */
.btn-info {
  background-color: #17a2b8;
}

/* Styling for the success button */
.btn-success {
  background-color: #28a745;
}

/* Styling for the danger button */
.btn-danger {
  background-color: #dc3545;
}

/* Styling for the default button */
.btn-default {
  background-color: #6c757d;
}

/* Styling for button hover effect */
.btn:hover {
  box-shadow: 0 0 10px rgb(208, 198, 251);
}
.resume-text {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 40px;
  color: #fff;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 20px;
}
#navbar {
  background-color: #0f0d15;
  color: #fff;
  overflow: hidden;
  position: fixed;
  top: 10px;
  left: 20px;
  padding: 0px;
  display: flex;
  align-items: center;
  border: 1px solid rgb(255, 255, 255);
}

#navbar img {
  width: 180px;
  height: 70px;
  margin-right: 10px;
}