:root {
      --primary: #6366f1;
      /* Indigo */
      --secondary: #06b6d4;
      /* Cyan */
      --dark: #0f172a;
      /* Navy */
      --green-dark: #064e3b;
      /* Dark green */
      --navbar-dark: #111827;
      /* Even darker for navbar */
      --text-light: #f3f4f6;
      /* Light text */
      --text-muted: #9ca3af;
      /* Muted text */
  }

  body {
      padding-top: 76px;
      /* To offset fixed navbar */
      background-color: var(--dark);
      color: var(--text-light);
      font-family: 'Inter', sans-serif;
  }

  /* Advanced Navbar Styling */
  .navbar-advanced {
      background: rgba(15, 23, 42, 0.95) !important;
      backdrop-filter: blur(12px);
      transition: all 0.4s ease;
      padding: 0.8rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .scrolled {
      background: rgba(15, 23, 42, 0.98) !important;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
      padding: 0.5rem 0;
  }

  /* Brand styling */
  .navbar-brand {
      font-weight: 800;
      font-size: 1.6rem;
      color: var(--text-light) !important;
      letter-spacing: -0.5px;
  }

  .navbar-brand span {
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 900;
  }

  /* Nav links */
  .nav-link {
      color: var(--text-light) !important;
      font-weight: 500;
      position: relative;
      margin: 0 0.3rem;
      padding: 0.5rem 0.8rem !important;
      border-radius: 6px;
      transition: all 0.3s ease;
  }

  .nav-link:hover {
      background: rgba(99, 102, 241, 0.1);
  }

  .nav-link::after {
      content: '';
      position: absolute;
      width: 0%;
      height: 2px;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      transition: width 0.3s;
  }

  .nav-link:hover::after,
  .nav-link.active::after {
      width: 70%;
  }

  /* CTA button */
  .btn-cta {
      border-radius: 8px;
      font-weight: 600;
      padding: 0.6rem 1.5rem;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border: none;
      color: white;
      transition: all 0.3s ease;
      box-shadow: 0 4px 6px rgba(99, 102, 241, 0.25);
  }

  .btn-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 12px rgba(99, 102, 241, 0.3);
      color: white;
  }

  /* Navbar icons */
  .navbar-icons .bi {
      font-size: 1.2rem;
      margin-left: 1rem;
      color: var(--text-light);
      cursor: pointer;
      transition: all 0.3s ease;
      padding: 0.5rem;
      border-radius: 50%;
  }

  .navbar-icons .bi:hover {
      color: var(--primary);
      background: rgba(99, 102, 241, 0.1);
  }

  /* Toggler icon */
  .navbar-toggler {
      border: none;
      padding: 0.25rem 0.5rem;
  }

  .navbar-toggler:focus {
      box-shadow: none;
  }

  .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  }

  /* Mobile menu adjustments */
  @media (max-width: 991.98px) {
      .navbar-collapse {
          background: var(--navbar-dark);
          padding: 1rem;
          border-radius: 8px;
          margin-top: 0.5rem;
          box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      }

      .navbar-icons {
          padding: 1rem 0;
          justify-content: center !important;
      }

      .nav-item {
          margin: 0.2rem 0;
      }
  }