:root {
  color-scheme: dark;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #000;
  color: #f5f5f5;
  height: 100vh;
  overflow: hidden;
}

#face-header {
  position: fixed;
  inset: 0 0 auto 0;
  padding: 0.9rem 1.6rem 2.8rem;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.82), rgba(0, 0, 0, 0));
  z-index: 12;
  pointer-events: none;
}

#face-header nav {
  display: inline-flex;
  gap: 1.1rem;
  align-items: center;
  pointer-events: auto;
}

#face-header a {
  color: rgba(219, 234, 254, 0.85);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 500;
  transition: opacity 0.2s ease, color 0.2s ease;
}

#face-header a:hover {
  opacity: 1;
  color: #ffffff;
}

#face-header a[aria-current='page'] {
  color: #ffffff;
}

#canvas-container {
  position: fixed;
  inset: 0;
}

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

#assistant-audio {
  display: none;
}