/* Small instrument-panel accents. Original layout, assets and motion stay intact.
   Deliberately scoped to the main page: no wallet, QR, oath or media overrides. */
.header .nav-index {
  display: inline-block;
  margin-left: 0.25em;
  color: var(--color-text-muted);
  font-size: 0.65em;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  vertical-align: super;
}

#top .section-kicker {
  letter-spacing: 0.22em;
  line-height: 1.6;
}

#top .card-tag {
  letter-spacing: 0.18em;
  font-variant-numeric: tabular-nums;
}

#top .card {
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-text) 5%, transparent);
}

#top .btn {
  transition: background-color 180ms ease, border-color 180ms ease,
    color 180ms ease, box-shadow 180ms ease;
}

#top .btn-primary {
  box-shadow: 0 0 16px color-mix(in srgb, var(--color-accent) 13%, transparent),
    inset 0 1px 0 rgb(255 255 255 / 14%);
}

#top .btn-ghost {
  border-color: color-mix(in srgb, var(--color-text) 22%, var(--color-border));
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-text) 4%, transparent);
}

@media (hover: hover) and (pointer: fine) {
  #top .btn:hover {
    box-shadow: 0 0 20px color-mix(in srgb, var(--color-accent) 19%, transparent),
      inset 0 1px 0 rgb(255 255 255 / 16%);
  }
  #top .card:hover {
    box-shadow: 0 14px 44px rgb(0 0 0 / 35%),
      inset 0 1px 0 color-mix(in srgb, var(--color-accent) 22%, transparent);
  }
}

#top .btn:active {
  box-shadow: 0 0 18px color-mix(in srgb, var(--color-accent) 22%, transparent);
}

#top .btn:focus-visible,
.header .nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

#top .card:focus-within {
  border-color: var(--color-accent);
}

/* Keep the original header's breathing room on smaller screens. */
@media (max-width: 1100px) {
  .header .nav-index { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #top .btn { transition: none; }
}