body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  background-color: #111;
  color: #fff;
  transition: background 0.3s, color 0.3s;
}

.light-mode {
  background-color: #f0f0f0;
  color: #222;
}

canvas {
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  background: #000;
  margin: 20px 0;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 600px;
  margin-top: 20px;
}

#toggleMode {
  padding: 8px 16px;
  cursor: pointer;
}

footer {
  text-align: center;
  margin-top: 20px;
}

.social-links a {
  font-size: 24px;
  margin: 0 10px;
  text-decoration: none;
}