/* Shared base styles for interactive demos */

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: #f5f5f5;
  color: #2c2c2a;
  line-height: 1.6;
  padding: 2rem;
}
.container {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
h1 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: #2c2c2a;
}
.subtitle {
  font-size: 0.95rem;
  color: #5f5e5a;
  margin-bottom: 1.5rem;
}
.equation-box {
  background: #f8f7f4;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
  overflow-x: auto;
}
.equation-box .eq-label {
  color: #5f5e5a;
  font-size: 0.85rem;
  display: block;
  margin-bottom: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  body { background: #1a1a1a; color: #e5e5e5; }
  .container { background: #2c2c2a; box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
  h1 { color: #e5e5e5; }
  .subtitle { color: #b4b2a9; }
  .equation-box { background: #3a3a38; color: #e5e5e5; }
  .equation-box .eq-label { color: #b4b2a9; }
}