:root {
  color-scheme: light dark;
  --primary-bg: #1a1a1a;
  --secondary-bg: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --accent: #ff6b35;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, sans-serif;
  background: linear-gradient(
    135deg,
    var(--primary-bg) 0%,
    var(--secondary-bg) 100%
  );
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 1rem;
}

.logo {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1;
}

.logo canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .logo {
    max-width: 300px;
  }
}

/* Non-interactive environment banner (only injected in test via server) */
.env-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  padding: 6px 10px;
  color: #000;
  font-size: 12px;
  font-weight: 600;
  z-index: 9999;
  pointer-events: none;
}
.env-banner span {
  background: rgba(255, 255, 255, 0.6);
  color: #000;
  border-radius: 4px;
  padding: 2px 6px;
}