body {
  margin: 0;
  padding: 0;
  background-color: #121212; 
  font-family: Arial, sans-serif;
  overflow: hidden;
  color: white; 
}

.header {
  padding: 10px;
  text-align: center;
}

h1 {
  font-size: 22px;
  margin-bottom: 10px;
  color: white;
}

.controls,
.manual-input {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px;
}

input[type="range"] {
  width: 100px;
  accent-color: #9b59b6; 
}

.manual-input input {
  width: 250px;
  padding: 5px;
  background-color: #1e1e1e; 
  color: white;
  border: 1px solid #333333; 
  border-radius: 4px;
}

button {
  padding: 5px 10px;
  background-color: #9b59b6; 
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background-color: #8e44ad; 
}

select {
  padding: 5px;
  background-color: #1e1e1e;
  color: white;
  border: 1px solid #333333;
  border-radius: 4px;
}

#algo-info {
  font-size: 14px;
  margin: 8px auto;
  max-width: 90%;
  background: #1e1e1e;
  padding: 10px;
  border-radius: 6px;
  line-height: 1.4;
  color: white;
}

.chart-area {
  width: 90%;
  max-width: 600px;
  margin: 10px auto 0;
}

canvas {
  max-height: 150px;
  background-color: #ffffff;
  border-radius: 5px;
}

.legend {
  color: lightgray;
  text-align: center;
  font-size: 12px;
  margin-top: 5px;
}

#bars-container {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 250px;
  margin-top: 5px;
  overflow: hidden;
}

.bar {
  background-color: #9b59b6; 
  margin: 0 1px;
  text-align: center;
  color: white;
  font-size: 12px;
}

.bar.highlighted {
  background-color: orange;
}

.bar.sorted {
  background-color: limegreen;
}