:root {
  --ucb-yellow: #FFCF00;
  --ucb-gray: #5A6675;
  --ucb-blue: #004679;
  --text-light: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: var(--text-light);
  color: var(--ucb-gray);
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  display: flex;
  flex: 1;
  height: 100vh;
  flex-direction: row;
}

.sidebar {
  background-color: var(--ucb-gray);
  color: var(--text-light);
  padding: 1em;
  width: 250px;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar h2 {
  margin-top: 0;
  color: var(--ucb-yellow);
}

.sidebar button {
  background-color: var(--ucb-yellow);
  color: var(--ucb-gray);
  border: none;
  padding: 10px;
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
}

.sidebar button:disabled {
  background-color: #ccc;
  color: #666;
  cursor: not-allowed;
}

.canvas-area {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--text-light);
  padding: 1em;
}

.canvas-wrapper {
  width: 90vmin;
  height: 90vmin;
  max-width: 600px;
  max-height: 600px;
}

canvas {
  width: 100%;
  height: 100%;
  border: 2px solid var(--ucb-gray);
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .canvas-area {
    padding: 0.5em;
  }
}