/* Navigation */
    .navbar {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(20px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      padding: 1rem 0;
      transition: all 0.3s;
    }

    .navbar.scrolled {
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .navbar-brand {
      font-weight: 900;
      font-size: 1.5rem;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-link {
      color: var(--dark) !important;
      font-weight: 600;
      transition: all 0.3s;
      position: relative;
      padding: 0.5rem 1rem !important;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: all 0.3s;
      transform: translateX(-50%);
    }

    .nav-link:hover::after {
      width: 80%;
    }