.section-nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--ink-2);
  border-bottom: 1px solid var(--wire);
}

.section-nav__list {
  display: flex;
  max-width: 1200px; margin: 0 auto;
  overflow-x: auto; scrollbar-width: none;
  padding: 0 10px;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}
.section-nav__list::-webkit-scrollbar { display: none; }

.section-nav__link {
  display: flex; align-items: center; gap: 7px;
  padding: 18px 28px;
  font-size: 11px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted); border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap; text-decoration: none;
  scroll-snap-align: start;
}
.section-nav__link:hover { color: var(--text-hi); }
.section-nav__link.active { color: var(--gold); border-bottom-color: var(--gold); }

@media (max-width: 900px) {
  .section-nav__link {
    padding: 14px 12px;
    font-size: 10px;
    letter-spacing: 1px;
  }
}

@media (max-width: 640px) {
  .section-nav {
    display: none;
  }

  .section-nav__list {
    max-width: none;
    padding: 0 8px;
  }

  .section-nav__link {
    justify-content: center;
    padding: 12px 10px;
    font-size: 9px;
    letter-spacing: .6px;
  }
}