:root {
      --gold: #b8860b;
      --ink: #1a2332;
      --bg: #faf5ef;
      --bg2: #f0e8dd;
      --white: #fff;
      --accent-blue: #1e5a6b;
      --accent-green: #2d7a4a;
      --text: #333;
      --text-gray: #666;
      --border: #e0ddd5;
    }

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

    html, body {
      font-family: system-ui, -apple-system, sans-serif;
      color: var(--text);
      background-color: var(--bg);
      line-height: 1.6;
    }

    body {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Navigation */
    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0;
      margin-bottom: 40px;
      border-bottom: 1px solid var(--border);
      flex-wrap: wrap;
      gap: 20px;
    }

    .nav-logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: -0.5px;
      text-decoration: none;
    }

    .nav-links {
      display: flex;
      gap: 30px;
      list-style: none;
      flex-wrap: wrap;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--ink);
      font-size: 14px;
      font-weight: 500;
      transition: color 0.3s;
    }

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

    .nav-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .nav-phone {
      color: var(--ink);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
    }

    .nav-phone:hover { color: var(--gold); }

    .nav-cta {
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
      color: var(--white);
      padding: 12px 24px;
      border-radius: 8px;
      text-decoration: none;
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(30, 90, 107, 0.3);
    }

    /* WhatsApp Floating Button */
    .whatsapp-float {
      position: fixed;
      bottom: 24px;
      right: 24px;
      width: 60px;
      height: 60px;
      background: #25d366;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
      z-index: 999;
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .whatsapp-float:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
    }

    .whatsapp-float svg { width: 32px; height: 32px; }

    /* Hero Section */
    .article-hero {
      background: linear-gradient(135deg, #1e5a6b 0%, #2d7a4a 100%);
      color: var(--white);
      padding: 60px 40px;
      margin: 0 -20px 50px -20px;
      border-radius: 0;
    }

    .breadcrumb {
      font-size: 12px;
      margin-bottom: 20px;
      opacity: 0.9;
    }

    .breadcrumb a {
      color: var(--white);
      text-decoration: none;
      opacity: 0.8;
    }

    .breadcrumb a:hover {
      opacity: 1;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(255, 255, 255, 0.15);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 20px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .article-hero h1 {
      font-size: 42px;
      font-weight: 700;
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .hero-subtitle {
      font-size: 18px;
      margin-bottom: 30px;
      opacity: 0.95;
      max-width: 600px;
    }

    .hero-meta {
      display: flex;
      gap: 20px;
      font-size: 13px;
      opacity: 0.85;
      flex-wrap: wrap;
      margin-top: 25px;
    }

    .hero-meta span {
      display: flex;
      gap: 8px;
    }

    .price-hero-box {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 25px;
      border-radius: 12px;
      margin-top: 30px;
      max-width: 400px;
    }

    .price-comparison-hero {
      display: flex;
      justify-content: space-around;
      text-align: center;
      gap: 20px;
    }

    .price-item {
      flex: 1;
    }

    .price-item-label {
      font-size: 12px;
      opacity: 0.8;
      margin-bottom: 8px;
      text-transform: uppercase;
    }

    .price-amount {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 5px;
    }

    .price-item.saving {
      border-left: 3px solid #4ade80;
      padding-left: 15px;
    }

    .saving-badge {
      background: #4ade80;
      color: #1a2332;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 11px;
      font-weight: 600;
      margin-top: 8px;
      display: inline-block;
    }

    /* Article Wrap */
    .article-wrap {
      max-width: 850px;
      margin: 0 auto 60px;
    }

    .article-wrap h2 {
      font-size: 28px;
      font-weight: 700;
      margin: 45px 0 25px 0;
      color: var(--ink);
      border-bottom: 3px solid var(--gold);
      padding-bottom: 12px;
    }

    .article-wrap h3 {
      font-size: 20px;
      font-weight: 600;
      margin: 30px 0 15px 0;
      color: var(--accent-blue);
    }

    .article-wrap p {
      margin-bottom: 18px;
      font-size: 16px;
      line-height: 1.8;
    }

    .article-wrap ul, .article-wrap ol {
      margin: 20px 0 20px 25px;
      font-size: 16px;
    }

    .article-wrap li {
      margin-bottom: 12px;
      line-height: 1.7;
    }

    /* Callout boxes */
    .callout {
      padding: 25px;
      border-radius: 8px;
      margin: 30px 0;
      border-left: 4px solid;
      background-color: rgba(255, 255, 255, 0.6);
    }

    .callout.info {
      border-left-color: #3b82f6;
      background-color: #eff6ff;
    }

    .callout.success {
      border-left-color: #4ade80;
      background-color: #f0fdf4;
    }

    .callout.warning {
      border-left-color: #f59e0b;
      background-color: #fffbeb;
    }

    .callout strong {
      display: block;
      margin-bottom: 10px;
      font-size: 15px;
    }

    /* Price Table */
    .price-table-wrap {
      overflow-x: auto;
      margin: 30px 0;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .price-table-wrap table {
      width: 100%;
      border-collapse: collapse;
      background: var(--white);
    }

    .price-table-wrap th {
      background: linear-gradient(135deg, #1e5a6b, #2d7a4a);
      color: var(--white);
      padding: 18px;
      text-align: left;
      font-weight: 600;
      font-size: 14px;
    }

    .price-table-wrap td {
      padding: 16px 18px;
      border-bottom: 1px solid var(--border);
    }

    .price-table-wrap tr:last-child td {
      border-bottom: none;
    }

    .price-table-wrap tr:nth-child(even) {
      background-color: var(--bg);
    }

    .price-table-wrap .price-col {
      font-weight: 600;
      color: var(--accent-blue);
      font-size: 16px;
    }

    .price-table-wrap .saving-col {
      color: #4ade80;
      font-weight: 600;
    }

    /* Price Box */
    .price-box {
      display: inline-block;
      background: var(--bg2);
      padding: 20px 25px;
      border-radius: 8px;
      border-left: 4px solid var(--gold);
      margin: 15px 0;
    }

    .price-tag {
      font-size: 24px;
      font-weight: 700;
      color: var(--accent-blue);
    }

    /* Steps */
    .steps {
      margin: 40px 0;
    }

    .steps-title {
      font-size: 22px;
      font-weight: 600;
      margin-bottom: 30px;
      color: var(--ink);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      margin: 20px 0;
    }

    .step {
      background: var(--bg2);
      padding: 25px;
      border-radius: 8px;
      text-align: center;
      border: 1px solid var(--border);
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .step:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, #1e5a6b, #2d7a4a);
      color: var(--white);
      border-radius: 50%;
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 15px;
    }

    .step-content h3 {
      font-size: 16px;
      margin-bottom: 10px;
      color: var(--ink);
    }

    .step-content p {
      font-size: 14px;
      margin: 0;
      color: #666;
      line-height: 1.6;
    }

    /* FAQ */
    .faq {
      margin: 50px 0;
    }

    .faq-title {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 30px;
      color: var(--ink);
      border-bottom: 3px solid var(--gold);
      padding-bottom: 12px;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .faq-q {
      padding: 20px;
      cursor: pointer;
      font-weight: 600;
      font-size: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: linear-gradient(to right, var(--bg), var(--white));
      transition: background 0.3s;
    }

    .faq-q:hover {
      background: var(--bg2);
    }

    .faq-q.active {
      background: linear-gradient(135deg, #1e5a6b15, #2d7a4a15);
      color: var(--accent-blue);
    }

    .faq-toggle {
      font-size: 20px;
      transition: transform 0.3s;
      color: var(--gold);
    }

    .faq-q.active .faq-toggle {
      transform: rotate(180deg);
    }

    .faq-a {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      font-size: 15px;
      line-height: 1.7;
    }

    .faq-a.active {
      padding: 20px;
      max-height: 500px;
    }

    /* CTA Block */
    .cta-block {
      background: linear-gradient(135deg, #1e5a6b 0%, #2d7a4a 100%);
      color: var(--white);
      padding: 50px 40px;
      border-radius: 12px;
      text-align: center;
      margin: 60px 0;
    }

    .cta-block h2 {
      color: var(--white);
      border-bottom: none;
      padding-bottom: 0;
      margin-bottom: 20px;
      font-size: 32px;
    }

    .cta-block p {
      font-size: 18px;
      margin-bottom: 30px;
      opacity: 0.95;
    }

    .cta-buttons {
      display: flex;
      gap: 15px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .cta-btn {
      padding: 15px 35px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      font-size: 15px;
      transition: all 0.3s;
      border: 2px solid var(--white);
      cursor: pointer;
      display: inline-block;
    }

    .cta-btn.primary {
      background: var(--gold);
      color: var(--ink);
      border-color: var(--gold);
    }

    .cta-btn.primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(184, 134, 11, 0.3);
    }

    .cta-btn.secondary {
      background: transparent;
      color: var(--white);
    }

    .cta-btn.secondary:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    /* Related Articles */
    .related {
      margin: 80px 0 60px;
    }

    .related-title {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 30px;
      color: var(--ink);
      border-bottom: 3px solid var(--gold);
      padding-bottom: 12px;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
    }

    .related-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .related-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .related-card-img {
      width: 100%;
      height: 180px;
      background: linear-gradient(135deg, #1e5a6b, #2d7a4a);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      font-size: 12px;
      text-align: center;
    }

    .related-card-content {
      padding: 20px;
    }

    .related-card h3 {
      font-size: 16px;
      margin-bottom: 12px;
      color: var(--ink);
    }

    .related-card p {
      font-size: 13px;
      color: #666;
      margin-bottom: 15px;
    }

    .related-card a {
      color: var(--gold);
      text-decoration: none;
      font-weight: 600;
      font-size: 14px;
    }

    .related-card a:hover {
      text-decoration: underline;
    }

    /* Footer */
    footer {
      border-top: 1px solid var(--border);
      padding: 30px 0;
      text-align: center;
      color: #888;
      font-size: 13px;
      margin-top: 60px;
    }

    /* Responsive */
    @media (max-width: 768px) {
      body {
        padding: 0 15px;
      }

      nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
      }

      .nav-phone { font-size: 13px; }
      .whatsapp-float { width: 52px; height: 52px; bottom: 18px; right: 18px; }
      .whatsapp-float svg { width: 26px; height: 26px; }

      .nav-links {
        gap: 15px;
        font-size: 13px;
      }

      .article-hero {
        padding: 40px 30px;
        margin-left: -15px;
        margin-right: -15px;
      }

      .article-hero h1 {
        font-size: 28px;
      }

      .hero-subtitle {
        font-size: 16px;
      }

      .price-comparison-hero {
        flex-direction: column;
      }

      .article-wrap h2 {
        font-size: 22px;
      }

      .steps-grid {
        grid-template-columns: 1fr;
      }

      .cta-block {
        padding: 35px 25px;
      }

      .cta-block h2 {
        font-size: 24px;
      }

      .cta-buttons {
        flex-direction: column;
      }

      .cta-btn {
        width: 100%;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .price-table-wrap {
        font-size: 14px;
      }

      .price-table-wrap th, .price-table-wrap td {
        padding: 12px;
      }
    }

    /* ======================
       Additional styles for ES/EL articles
       ====================== */

    /* Step number variant (ES) */
    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, #1e5a6b, #2d7a4a);
      color: var(--white);
      border-radius: 50%;
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 15px;
    }

    /* Step h4 styling (ES/EL use h4 instead of h3) */
    .step h4 {
      font-size: 16px;
      margin-bottom: 10px;
      color: var(--ink);
    }


    .price-box ul {
      margin-left: 20px;
    }

    /* CTA block button fallback */
    .cta-block button {
      background: var(--gold);
      color: var(--ink);
      padding: 15px 35px;
      border: none;
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      cursor: pointer;
      transition: all 0.3s;
    }

    .cta-block button:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(184, 134, 11, 0.3);
    }

    /* Related card link style (ES) */
    .related-card-link {
      color: var(--gold);
      font-weight: 600;
      font-size: 14px;
    }

    /* Intro text style */
    .intro-text {
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    /* Article badge (EL uses this instead of hero-badge) */
    .article-badge {
      display: inline-block;
      background: rgba(255, 255, 255, 0.15);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 20px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    /* Logo link style (ES nav) */
    nav .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: -0.5px;
      text-decoration: none;
    }

    /* Nav CTA button variant */
    nav .cta-btn {
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
      color: var(--white);
      padding: 12px 24px;
      border-radius: 8px;
      border: none;
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
      cursor: pointer;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    nav .cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(30, 90, 107, 0.3);
    }

    /* FAQ section-level wrapper (EL nests faq inside a div) */
    .faq .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    /* Footer links */
    footer a {
      color: inherit;
      text-decoration: none;
    }

    footer a:hover {
      color: var(--gold);
      text-decoration: underline;
    }

    /* Testimonial quotes (IT article) */
    .testimonial-quote {
      border-left: 4px solid var(--gold);
      padding-left: 20px;
      margin: 25px 0;
      font-style: italic;
      color: #666;
    }

    /* Detail lists (ES article) */
    .detail-list {
      margin: 1rem 0 1.5rem 2rem;
      color: var(--text-gray);
    }

    /* Print stylesheet */
    @media print {
      nav, .nav-cta, .cta-block, .cta-buttons, .related,
      .hero-badge, .saving-badge, footer {
        display: none !important;
      }

      body {
        max-width: 100%;
        padding: 0;
        color: #000;
        background: #fff;
      }

      .article-hero {
        background: none !important;
        color: #000 !important;
        padding: 20px 0;
        margin: 0;
      }

      .article-hero h1 {
        color: #000;
        font-size: 24px;
      }

      .price-hero-box {
        border: 1px solid #ccc;
        background: none;
      }

      .price-amount {
        color: #000;
      }

      .article-wrap h2 {
        border-bottom-color: #ccc;
      }

      .price-table-wrap {
        box-shadow: none;
        border: 1px solid #ccc;
      }

      .price-table-wrap th {
        background: #333 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
      }

      a[href]::after {
        content: " (" attr(href) ")";
        font-size: 12px;
        color: #666;
      }

      nav a[href]::after,
      .related a[href]::after {
        content: none;
      }
    }