body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
  }

  ::selection {
    color: white;
    background-color: #51473d;
  }

  a {
    color: #6B5D4C;
    text-decoration: none;
    transition: color 0.3s;
  }

  a:hover {
    color: #51473d;
  }

  .site-header {
    padding: 1rem 0;
    border-bottom: 1px solid #dee2e6;
    background-color: #fff;
  }

  .site-logo {
    display: flex;
    align-items: center;
    color: #333;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
  }

  .site-logo img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 50%;
    margin-right: 0.5rem;
  }

  .primary-menu {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    align-items: center;
  }

  .primary-menu li {
    margin-left: 1rem;
  }

  .primary-menu li a {
    font-weight: 500;
    font-size: 0.9rem;
    color: #333;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
  }

  .primary-menu li a:hover {
    color: #6B5D4C;
  }

  .hamburger {
    display: none;
    cursor: pointer;
  }

  .hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: #333;
    margin: 4px 0;
    transition: transform 0.3s, opacity 0.3s;
  }

  .hamburger:hover span {
    background-color: #6B5D4C;
  }

  .product-description {
    padding: 4rem 0;
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    text-align: center;
    margin-bottom: 1.5rem;    }

  .product-description h1 {
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }

  .product-description h4 {
    font-weight: 400;
    color: #6c757d;
    margin-bottom: 0;
  }

  .page {
    position: relative;
  }

  .persistent-menu {
    width: 20rem;
    position: relative;
    padding-right: 1.5rem;
    transition: width 0.3s;
  }

  .navigation {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
  }

  .navigation span {
    display: block;
    color: #333;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
  }

  .navigation ul {
    list-style: none;
    padding: 0;
  }

  .navigation ul li {
    margin-bottom: 0.5rem;
  }

  .navigation ul li a {
    display: block;
    padding: 0.5rem 0;
    color: #6c757d;
    font-size: 0.9rem;
    font-weight: 400;
    text-decoration: none;
    transition: color 0.3s;
  }

  .navigation ul li a:hover {
    color: #6B5D4C;
  }

  .navigation ul li a.active {
    color: #6B5D4C;
    font-weight: 500;
  }

  .page-content {
    transition: margin-left 0.3s;
  }

  .post-header {
    margin-bottom: 2rem;
  }

  .page-title {
    font-weight: 700;
    margin: 0;
    font-size: 2rem;
  }

  .updated {
    font-size: 0.9rem;
    color: #6c757d;
  }

  h2 {
    font-weight: 600;
    font-size: 1.75rem;
    margin: 2rem 0 1rem;
  }

  h3 {
    font-weight: 600;
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
  }

  h4 {
    font-weight: 600;
    font-size: 1.25rem;
    margin: 1.25rem 0 1rem;
  }

  p {
    margin-bottom: 1rem;
  }

  ul {
    margin-bottom: 1rem;
  }

  .card {
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.3s;
  }

  .card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }

  .card-body {
    padding: 1.25rem;
  }

  .card-title {
    margin-bottom: 0.75rem;
  }

  .card-text {
    margin-bottom: 1rem;
  }

  .btn {
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: all 0.3s;
  }

  .btn-primary {
    color: #fff;
    background-color: #554837;
    border-color: #554837;
  }

  .btn-primary:hover {
    background-color: #6B5D4C;
    border-color: #6B5D4C;
  }

  .btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    line-height: 1.5;
    border-radius: 0.2rem;
  }

  .btn-pill {
    border-radius: 50px;
  }

  .site-footer {
    padding: 2rem 0;
    border-top: 1px solid #dee2e6;
    background-color: #fff;
    text-align: center;
  }

  .footer-logo img {
    max-height: 60px;
    border-radius: 50%;
  }

  .footer-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
  }

  .footer-menu li {
    margin: 0 1rem;
  }

  .footer-menu li a {
    color: #6c757d;
    font-size: 0.9rem;
    transition: color 0.3s;
  }

  .footer-menu li a:hover {
    color: #6B5D4C;
  }

  .footer-social {
    text-align: center;
  }

  .footer-social ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
  }

  .footer-social ul li {
    margin-left: 1rem;
  }

  .footer-social ul li a {
    color: #cacedb;
    font-size: 1.25rem;
    transition: color 0.3s;
  }

  .footer-social ul li a:hover {
    color: #6B5D4C;
  }

  .clearfix::after {
    display: block;
    clear: both;
    content: "";
  }

  .profile-image {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: block;
    border: 5px solid #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }

  .skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 1.5rem;
  }

  .skill-badge {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 50px;
    padding: 0.35rem 1rem;
    font-size: 0.85rem;
    color: #6B5D4C;
    transition: all 0.3s;
  }

  .skill-badge:hover {
    background-color: #6B5D4C;
    color: #fff;
    border-color: #6B5D4C;
  }

  .timeline {
    position: relative;
    padding: 1rem 0;
  }

  .timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background-color: #dee2e6;
    top: 0;
    bottom: 0;
    left: 15px;
  }

  .timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
    padding-left: 40px;
  }

  .timeline-badge {
    position: absolute;
    width: 30px;
    height: 30px;
    left: 0;
    top: 0;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    background-color: #6B5D4C;
    color: #fff;
    z-index: 1;
  }

  .timeline-content {
    padding: 1rem;
    background-color: #fff;
    border-radius: 0.25rem;
    border: 1px solid #dee2e6;
  }

  .timeline-date {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #6B5D4C;
  }

  .social-links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
  }
  
  .social-links a {
    color: #6B5D4C;
    font-size: 1.5rem;
    transition: transform 0.2s;
  }
  
  .social-links a:hover {
    transform: scale(1.1);
    color: #51473d;
  }

  @media (max-width: 992px) {
    .persistent-menu {
      width: 100%;
      float: none;
      padding-right: 0;
      margin-bottom: 2rem;
    }

    .timeline::before {
      left: 60px;
    }

    .timeline-item {
      padding-left: 85px;
    }

    .timeline-badge {
      left: 45px;
    }

    .hamburger {
      display: inline-block;
    }

    .primary-menu {
      display: none;
      flex-direction: column;
      align-items: flex-start;
    }

    .primary-menu.active {
      display: flex;
    }
  }

  @media (max-width: 767px) {
    .footer-menu {
      flex-direction: column;
      align-items: center;
    }

    .footer-menu li {
      margin: 0.5rem 0;
    }

    .footer-social ul {
      justify-content: center;
    }
  }