body {
  background-color: #121212;
  color: #e0e0e0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  margin: 0;
  padding: 20px;
}

main {
  max-width: 960px;
  margin: 0 auto;
  background: #1e1e1e;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 100, 255, 0.3);
}

h1 {
  color: #ffffff;
  font-size: 32px;
  margin: 0 0 20px;
}

#sliders {
  margin: 10px auto 20px;
  padding: 0;
  max-width: 400px;
  text-align: left;
}

#sliders label {
  font-weight: bold;
  color: #bbb;
  display: inline-block;
  margin-top: 10px;
}

input[type="range"] {
  width: 200px;
  accent-color: #64b5f6;
  background-color: #333;
  border-radius: 4px;
  vertical-align: middle;
  margin: 0 8px;
}

#controls {
  margin: 15px auto;
}

/* One consistent button style for every button on the page */
#controls button,
.control-btn,
#explanationBtn {
  background-color: #64b5f6;
  color: #121212;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  margin: 5px 5px 10px 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-weight: bold;
  font-size: 14px;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out;
  box-shadow: none;
  position: static;
}

#controls button:hover,
.control-btn:hover,
#explanationBtn:hover {
  background-color: #90caf9;
}

.control-btn:focus,
#controls button:focus,
#explanationBtn:focus {
  outline: none;
}

#slowMotionStatus {
  color: #ccc;
  font-size: 14px;
  margin-left: 8px;
}

canvas {
  display: block;
  margin: 20px auto;
  border: 2px solid #64b5f6;
  border-radius: 6px;
  background-color: #121212;
}

/* Explanation panel */
#explanationPanel {
  background-color: #1e1e1e !important;
  color: #ccc !important;
  padding: 20px !important;
  border-radius: 12px !important;
  box-shadow: 0 0 20px rgba(0, 100, 255, 0.3) !important;
  text-align: left;
}

#explanationPanel h3 {
  color: #90caf9;
  margin-top: 0;
}

#explanationPanel em {
  color: #90caf9;
  font-style: normal;
  font-family: 'Courier New', monospace;
}

#closeExplanationBtn {
  color: #f6c177 !important;
}
#closeExplanationBtn:hover {
  color: #ffffff !important;
}