/* NSD Glass Header Override — drop this after styles.css */
header{
  position: sticky;
  top: 0;
  z-index: 1000;
  /* translucent layer for glass effect */
  background: rgba(13,15,18,0.48);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%); /* Safari */
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  isolation: isolate; /* ensure the blur isolates properly */
  width: 100%;
}
/* keep content spaced nicely at all sizes */
header .nav{ padding-inline: clamp(12px, 2vw, 24px); }