:root {
      --primary: #1a2bc3;
      --secondary: #f6f9ff;
      --text: #3a3a3a;
      --orange: #fe770e;
      --yellow: #ebbb01;
      --light-grey: #f0f3f7;
      --dark-blue: #020042;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: "Roboto", sans-serif;
      font-weight: 400;
      line-height: 1.6;
      background: var(--light-grey);
      color: var(--text);
    }

    /* Header */
    header {
      height: 80px;
      padding: 0 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      background: rgba(246, 249, 255, 0.9);
      backdrop-filter: blur(13px);
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      font-family: "Montserrat", sans-serif;
      text-decoration: none;
    }

    .nav-links {
      display: flex;
      gap: 30px;
      align-items: center;
    }

    .nav-links a {
      color: #4c4c4c;
      text-decoration: none;
      font-size: 16px;
      transition: color 0.3s ease;
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    .back-btn {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      text-decoration: none;
      font-weight: 500;
    }

    .back-btn:hover {
      gap: 12px;
    }

    /* Article Hero */
    .article-hero {
      margin-top: 80px;
      background: var(--secondary);
      padding: 60px 20px 40px;
    }

    .article-hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: #999;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .breadcrumb a {
      color: #999;
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .breadcrumb a:hover {
      color: var(--primary);
    }

    .breadcrumb .material-symbols-outlined {
      font-size: 18px;
    }

    .article-category {
      display: inline-block;
      background: rgba(26, 43, 195, 0.1);
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 20px;
      border: 1px solid rgba(26, 43, 195, 0.2);
      margin-bottom: 20px;
    }

    .article-title {
      font-family: "Montserrat", sans-serif;
      font-size: 30px;
      font-weight: 600;
      color: var(--dark-blue);
      line-height: 1.3;
      margin-bottom: 24px;
    }

    .article-meta {
      display: flex;
      gap: 24px;
      align-items: center;
      flex-wrap: wrap;
      padding-bottom: 40px;
      border-bottom: 1px solid #e2e4e9;
    }

    .meta-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: #666;
      font-size: 14px;
    }

    .meta-item .material-symbols-outlined {
      font-size: 20px;
      color: #999;
    }

    .author-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      object-fit: cover;
    }

    .author-name {
      font-weight: 600;
      color: var(--text);
    }

    /* Featured Image */
    .featured-image-container {
      max-width: 1200px;
      margin: -60px auto 60px;
      padding: 0 20px;
    }

    .featured-image {
      width: 100%;
      height: 400px;
      object-fit: cover;
      border-radius: 30px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    }

    /* Article Content */
    .article-container {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .article-content {
      background: white;
      padding: 40px 30px;
      border-radius: 30px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      margin-bottom: 60px;
    }

    .article-body {
      color: var(--text);
      font-size: 18px;
      line-height: 1.8;
    }

    .article-body h2 {
      font-family: "Montserrat", sans-serif;
      font-size: 28px;
      font-weight: 600;
      color: var(--dark-blue);
      margin: 40px 0 20px;
    }

    .article-body h3 {
      font-family: "Montserrat", sans-serif;
      font-size: 24px;
      font-weight: 600;
      color: var(--text);
      margin: 30px 0 16px;
    }

    .article-body p {
      margin-bottom: 20px;
      color: #666;
    }

    .article-body ul,
    .article-body ol {
      margin: 20px 0;
      padding-left: 30px;
    }

    .article-body li {
      margin-bottom: 12px;
      color: #666;
    }

    .article-body blockquote {
      border-left: 4px solid var(--primary);
      padding: 20px 30px;
      margin: 30px 0;
      background: var(--secondary);
      border-radius: 10px;
      font-style: italic;
      color: #666;
    }

    .article-body img {
      width: 100%;
      height: auto;
      border-radius: 15px;
      margin: 30px 0;
    }

    .article-body a {
      color: var(--primary);
      text-decoration: underline;
      transition: color 0.3s ease;
    }

    .article-body a:hover {
      color: var(--orange);
    }

    .article-body strong {
      font-weight: 600;
      color: var(--text);
    }

    .highlight-box {
      background: #f7e7dc;
      border: 1px solid #f9c59b;
      border-radius: 15px;
      padding: 24px;
      margin: 30px 0;
    }

    .highlight-box h4 {
      font-family: "Montserrat", sans-serif;
      color: var(--orange);
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    /* Share Section */
    .share-section {
      margin-top: 40px;
      padding-top: 40px;
      border-top: 1px solid #e2e4e9;
    }

    .share-heading {
      font-family: "Montserrat", sans-serif;
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 16px;
    }

    .share-buttons {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .share-btn {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border-radius: 15px;
      font-size: 14px;
      font-weight: 500;
      text-decoration: none;
      transition: all 0.3s ease;
      border: 2px solid transparent;
    }

    .share-btn:hover {
      transform: translateY(-2px);
    }

    .share-btn.facebook {
      background: #1877f2;
      color: white;
    }

    .share-btn.twitter {
      background: #1da1f2;
      color: white;
    }

    .share-btn.linkedin {
      background: #0077b5;
      color: white;
    }

    .share-btn.whatsapp {
      background: #25d366;
      color: white;
    }

    .share-btn.copy {
      background: var(--light-grey);
      color: var(--text);
      border-color: #e2e4e9;
    }

    /* Tags Section */
    .tags-section {
      margin-top: 40px;
      padding-top: 40px;
      border-top: 1px solid #e2e4e9;
    }

    .tags-heading {
      font-family: "Montserrat", sans-serif;
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 16px;
    }

    .tags-list {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .tag {
      padding: 8px 16px;
      background: var(--secondary);
      border: 1px solid #e2e4e9;
      border-radius: 20px;
      font-size: 14px;
      color: var(--text);
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .tag:hover {
      background: var(--primary);
      border-color: var(--primary);
      color: white;
    }

    /* Author Bio */
    .author-bio {
      background: white;
      padding: 40px;
      border-radius: 30px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      margin-bottom: 60px;
      display: flex;
      gap: 24px;
      align-items: start;
    }

    .author-bio-avatar {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      object-fit: cover;
      flex-shrink: 0;
    }

    .author-bio-content h3 {
      font-family: "Montserrat", sans-serif;
      font-size: 22px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
    }

    .author-bio-title {
      color: #999;
      font-size: 14px;
      margin-bottom: 16px;
    }

    .author-bio-text {
      color: #666;
      font-size: 16px;
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .author-social {
      display: flex;
      gap: 12px;
    }

    .author-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--light-grey);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text);
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .author-social a:hover {
      background: var(--primary);
      color: white;
    }

    /* Related Posts */
    .related-posts {
      margin-bottom: 60px;
    }

    .related-heading {
      font-family: "Montserrat", sans-serif;
      font-size: 32px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 40px;
      text-align: center;
    }

    .related-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 30px;
    }

    .related-card {
      background: white;
      border-radius: 30px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      border: 1px solid transparent;
    }

    .related-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
      border-color: var(--primary);
    }

    .related-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .related-content {
      padding: 24px;
    }

    .related-category {
      display: inline-block;
      background: rgba(26, 43, 195, 0.1);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 15px;
      margin-bottom: 12px;
    }

    .related-title {
      font-family: "Montserrat", sans-serif;
      font-size: 20px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
      line-height: 1.3;
    }

    .related-date {
      color: #999;
      font-size: 14px;
    }

    /* Newsletter */
    .newsletter-section {
      background: var(--dark-blue);
      padding: 60px 20px;
      border-radius: 30px;
      margin-bottom: 60px;
      text-align: center;
    }

    .newsletter-section h2 {
      font-family: "Montserrat", sans-serif;
      color: white;
      font-size: 32px;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .newsletter-section p {
      color: #b8bac9;
      font-size: 16px;
      margin-bottom: 30px;
    }

    .newsletter-form {
      display: flex;
      gap: 12px;
      max-width: 500px;
      margin: 0 auto;
      flex-direction: column;
    }

    .newsletter-input {
      flex: 1;
      padding: 16px 20px;
      border: 2px solid rgba(255, 255, 255, 0.2);
      border-radius: 15px;
      background: rgba(255, 255, 255, 0.1);
      color: white;
      font-size: 16px;
      outline: none;
      transition: all 0.3s ease;
    }

    .newsletter-input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }

    .newsletter-input:focus {
      border-color: var(--primary);
      background: rgba(255, 255, 255, 0.15);
    }

    .newsletter-btn {
      padding: 16px 40px;
      background: var(--orange);
      color: white;
      border: none;
      border-radius: 15px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .newsletter-btn:hover {
      background: var(--yellow);
      transform: translateY(-2px);
    }

    /* Comments Section */
    .comments-section {
      background: white;
      padding: 40px;
      border-radius: 30px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      margin-bottom: 60px;
    }

    .comments-heading {
      font-family: "Montserrat", sans-serif;
      font-size: 28px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 30px;
    }

    .comment-form {
      margin-bottom: 40px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-weight: 500;
      color: var(--text);
      margin-bottom: 8px;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 14px 20px;
      border: 2px solid #e2e4e9;
      border-radius: 15px;
      font-size: 16px;
      font-family: "Roboto", sans-serif;
      outline: none;
      transition: all 0.3s ease;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(26, 43, 195, 0.1);
    }

    .form-group textarea {
      min-height: 120px;
      resize: vertical;
    }

    .submit-btn {
      padding: 14px 40px;
      background: var(--primary);
      color: white;
      border: none;
      border-radius: 15px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .submit-btn:hover {
      background: var(--dark-blue);
      transform: translateY(-2px);
      box-shadow: 0 10px 20px rgba(26, 43, 195, 0.2);
    }

    .comments-list {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .comment {
      display: flex;
      gap: 16px;
    }

    .comment-avatar {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      object-fit: cover;
      flex-shrink: 0;
    }

    .comment-content {
      flex: 1;
    }

    .comment-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 8px;
    }

    .comment-author {
      font-weight: 600;
      color: var(--text);
    }

    .comment-date {
      color: #999;
      font-size: 14px;
    }

    .comment-text {
      color: #666;
      line-height: 1.6;
      margin-bottom: 12px;
    }

    .comment-reply {
      color: var(--primary);
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .comment-reply:hover {
      text-decoration: underline;
    }

    /* Responsive */
    @media (min-width: 768px) {
      header {
        padding: 0 40px;
      }

      .article-hero {
        padding: 80px 40px 60px;
      }

      .article-title {
        font-size: 38px;
      }

      .featured-image-container {
        padding: 0 40px;
      }

      .featured-image {
        height: 500px;
      }

      .article-container {
        padding: 0 40px;
      }

      .article-content {
        padding: 60px 80px;
      }

      .article-body {
        font-size: 19px;
      }

      .author-bio {
        flex-direction: row;
      }

      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .newsletter-form {
        flex-direction: row;
      }
    }

    @media (min-width: 1024px) {
      header {
        padding: 0 64px;
      }

      .article-hero {
        padding: 100px 64px 80px;
      }

      .article-title {
        font-size: 56px;
      }

      .featured-image-container {
        padding: 0 64px;
        margin: -80px auto 80px;
      }

      .featured-image {
        height: 600px;
      }

      .article-container {
        padding: 0 64px;
      }

      .related-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .toast {
      position: fixed;
      bottom: 30px;
      right: 30px;
      background: #323232;
      color: white;
      padding: 16px 24px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
      display: flex;
      align-items: center;
      gap: 12px;
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.3s, transform 0.3s;
      pointer-events: none;
      z-index: 1000;
    }

    .toast.show {
      opacity: 1;
      transform: translateY(0);
      pointer-events: auto;
    }

    .toast .material-symbols-outlined {
      color: #4caf50;
    }