body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #fff;
  color: #333;
}

input[type="checkbox"] {
  accent-color: #333; /* sets checkbox color to black when checked (modern browsers) */
}

/* For broader browser support with custom styling: */

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

input[type="checkbox"]:checked {
  background-color: #333;
  border: 1px solid #999;
}


.navbar {
  overflow: hidden;
  background-color: #333;
}

.navbar a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 20px;
  text-decoration: none;
}

.navbar a:hover {
  background-color: #ddd;
  color: black;
}

.content {
  padding: 20px;
}

input[type=range] {
  -webkit-appearance: none;
  width: 200px;
  height: 6px;
  background: #ccc; /* slider track color */
  border-radius: 3px;
  outline: none;
  margin-right: 10px;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #333; /* thumb color: black */
  cursor: pointer;
  border: 1px solid #999; /* grey border */
}

input[type=range]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #333; /* thumb color: black */
  cursor: pointer;
  border: 1px solid #999; /* grey border */
}

input[type=range]::-ms-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #333; /* thumb color: black */
  cursor: pointer;
  border: 1px solid #999; /* grey border */
}

input[type=range]::-webkit-slider-runnable-track {
  background: #ccc; /* track color: grey */
  border-radius: 3px;
}

input[type=range]:focus::-webkit-slider-runnable-track {
  background: #bbb; /* darker on focus */
}

#passwords div {
  padding: 2px 0;
}

button {
  background-color: #333;
  color: white;
  border: none;
  padding: 8px 12px;
  cursor: pointer;
  border-radius: 4px;
}

button.copy-single {
  padding: 4px 8px;
  font-size: 12px;
}

button:hover {
  background-color: #555;
}

input[type=number] {
  width: 60px;
  padding: 4px;
  margin-left: 5px;
}
