.bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: #fff;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 999;
  }
  .bottom-nav a {
    text-decoration: none;
    color: #003f7f;
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .bottom-nav a i { font-size: 1.3rem; margin-bottom: 2px; }
  .bottom-nav a.active { color: #007bff; }