/* Header */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: hsl(var(--background) / 0.95);
  box-shadow: 0 6px 20px -16px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
}