:root {
  --color-bg: #0a0a0a;       /* dark background */
  --color-primary: #003366;  /* dark blue accent (changed) */
  --color-text: #f5f5f5;     /* near-white text */
  --color-muted: #9a9a9a;    /* muted gray */
}

/* keep header fixed at top while scrolling and avoid content overlap */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;              /* consistent header height */
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;   /* transparent so video shows through */
  z-index: 1000;
}

/* ensure page content begins below the fixed header */
body {
  font-family: 'Inter', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  padding-top: 64px;         /* same as header height */
}

/* keep video behind everything */
.background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
  opacity: 0.7;
  pointer-events: none;
}