body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  margin: 0;
  height: 100vh;
  background-color: #f9f9f9;
}

#controls {
  width: 380px;
  padding: 15px 20px;
  background: #ffffff;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
  overflow-y: auto;
  z-index: 10;
}

#plot-container {
  flex-grow: 1;
  padding: 10px;
  display: flex;
  justify-content: center;
}

#plot {
  width: 100%;
  max-width: 1200px;
  height: 100%;
}

h2 {
  color: #333;
  border-bottom: 2px solid #0056b3;
  padding-bottom: 5px;
  margin-top: 0;
  font-size: 1.3em;
}

.control-group {
  margin-bottom: 12px;
}

.control-group label {
  display: block;
  font-size: 13px;
  font-weight: bold;
  margin-bottom: 4px;
  color: #555;
}

.input-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.input-row input[type="range"] {
  flex-grow: 1;
  cursor: pointer;
}

.input-row input[type="number"] {
  width: 75px;
  padding: 4px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

select {
  width: 100%;
  padding: 8px;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid #ccc;
}