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

:root {
  --color-bg: #0a0a0a;
  --color-accent: #ffd60a;
  --font-main: 'Courier New', monospace;
}

html, body {
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  overflow: hidden;
}

.mode-frame {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  border: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mode-frame.active {
  opacity: 1;
  pointer-events: all;
}

#dev-switcher {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  z-index: 9999;
}

#dev-switcher button,
#dev-switcher a {
  background: #111;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-decoration: none;
}

#dev-switcher button:hover,
#dev-switcher a:hover {
  background: var(--color-accent);
  color: #000;
}