/* ── Base ── */
html { scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; }

/* ── Nav shadow on scroll ── */
#nav.scrolled { box-shadow: 0 1px 12px rgba(15,23,42,.06); }

/* ── Subtle line accents ── */
.section-line {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, #0d9488, transparent);
  margin-bottom: 1.25rem;
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── Selection ── */
::selection { background: #ccfbf1; color: #134e4a; }