:root {
  --nav-bg: #1a1a2e;
  --accent:  #4e9af1;
}
body { background: #f5f7fa; }

/* ── Navbar ── */
.navbar { background: var(--nav-bg) !important; }
.navbar-brand { font-weight: 700; letter-spacing: .5px; color: #fff !important; }
.navbar-brand span { color: var(--accent); }