/* Basic style placeholders based on design_plan */
    body {
      font-family: 'Lato', sans-serif;
      color: #212529; /* text_on_light */
      background-color: #f8f9fa; /* background_light */
    }
    .site-header {
      background-color: #34495e; /* primary */
      border-bottom: 1px solid #2c3e50; /* background_dark */
    }
    .navbar-brand {
      font-family: 'Playfair Display', serif; /* heading_font_family */
      color: #ecf0f1 !important; /* text_on_dark */
      font-size: 24px;
      padding: 15px 15px; /* Adjust padding for Bootstrap 3.3.0 */
      height: auto;
    }
    .navbar-nav > li > a {
      font-family: 'Lato', sans-serif; /* body_font_family */
      color: #ecf0f1 !important; /* text_on_dark */
      font-weight: 500;
      padding-top: 15px; /* Adjust padding for Bootstrap 3.3.0 */
      padding-bottom: 15px;
    }
    .navbar-nav > li > a:hover,
    .navbar-nav > li > a:focus {
      color: #95a5a6 !important; /* secondary */
    }
    .navbar-toggle .icon-bar {
        background-color: #ecf0f1; /* text_on_dark */
    }
    .navbar-inverse .navbar-toggle:hover,
    .navbar-inverse .navbar-toggle:focus {
        background-color: #2c3e50; /* background_dark */
    }
    .btn-custom-cta {
      background-color: #e74c3c; /* accent */
      color: #ecf0f1; /* text_on_dark */
      border: none;
      padding: 8px 15px;
      margin-left: 15px;
      border-radius: 4px;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }
    .btn-custom-cta:hover {
      background-color: #c0392b; /* A darker shade of accent for hover */
      color: #ecf0f1;
    }
    .navbar-collapse {
      border-top: none; /* Remove default Bootstrap 3.3.0 border */
      box-shadow: none; /* Remove default Bootstrap 3.3.0 shadow */
    }
    @media (max-width: 767px) {
      .navbar-nav {
        margin: 7.5px -15px; /* Adjust for better mobile spacing */
      }
      .btn-custom-cta {
        display: block;
        width: 100%;
        margin-top: 10px;
        margin-left: 0;
      }
    }