:root {
      --primary: #1A3A5C; --primary-light: #2A5080; --secondary: #2EAA76;
      --accent: #C8A84B; --white: #FFFFFF; --light: #F8FAFC; --light-green: #E8F7F1;
      --gray: #64748B; --gray-light: #CBD5E1; --dark: #1E293B;
      --shadow: 0 4px 20px rgba(0,0,0,0.10); --radius: 14px;
    }
    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { font-family: 'Inter', sans-serif; color: var(--dark); line-height: 1.75; background: var(--white); }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    .navbar { position: sticky; top: 0; z-index: 100; background: white; border-bottom: 1px solid var(--gray-light); padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
    .nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--primary); font-size: 1rem; }
    .nav-back { display: flex; align-items: center; gap: 8px; color: var(--secondary); font-size: .9rem; font-weight: 600; }
    .nav-back:hover { color: var(--primary); }
    .nav-cta { background: var(--secondary); color: white; padding: 8px 18px; border-radius: 50px; font-size: .85rem; font-weight: 600; }
    .nav-cta:hover { background: var(--primary); }
    .article-hero { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); padding: 60px 24px 50px; text-align: center; color: white; }
    .article-hero .breadcrumb { font-size: .8rem; opacity: .7; margin-bottom: 20px; }
    .article-hero .breadcrumb a { color: white; }
    .article-hero .breadcrumb span { margin: 0 6px; }
    .article-cat { display: inline-block; background: var(--secondary); color: white; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 14px; border-radius: 50px; margin-bottom: 20px; }
    .article-hero h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; line-height: 1.25; max-width: 720px; margin: 0 auto 20px; }
    .article-meta { display: flex; align-items: center; justify-content: center; gap: 24px; font-size: .85rem; opacity: .8; }
    .article-meta i { margin-right: 6px; }
    .article-wrap { max-width: 780px; margin: 0 auto; padding: 60px 24px; }
    .article-img { width: 100%; height: 340px; object-fit: cover; border-radius: var(--radius); margin-bottom: 40px; box-shadow: var(--shadow); }
    .article-body h2 { font-size: 1.45rem; font-weight: 800; color: var(--primary); margin: 40px 0 16px; padding-top: 8px; border-top: 3px solid var(--light-green); }
    .article-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--primary-light); margin: 28px 0 12px; }
    .article-body p { margin-bottom: 18px; color: #374151; }
    .article-body ul, .article-body ol { margin: 0 0 18px 24px; color: #374151; }
    .article-body li { margin-bottom: 8px; }
    .article-body strong { color: var(--primary); }
    .table-wrap { overflow-x: auto; margin: 24px 0; }
    table { width: 100%; border-collapse: collapse; font-size: .9rem; }
    th { background: var(--primary); color: white; padding: 12px 16px; text-align: left; font-weight: 600; }
    td { padding: 11px 16px; border-bottom: 1px solid var(--gray-light); }
    tr:nth-child(even) { background: var(--light); }
    .good { color: var(--secondary); font-weight: 600; }
    .warn { color: #D97706; font-weight: 600; }
    .info-box { background: var(--light-green); border-left: 4px solid var(--secondary); border-radius: 0 var(--radius) var(--radius) 0; padding: 20px 24px; margin: 28px 0; }
    .info-box p { margin: 0; color: var(--primary); }
    .info-box strong { color: var(--secondary); }
    .article-cta { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); border-radius: var(--radius); padding: 40px; text-align: center; margin: 50px 0; }
    .article-cta h3 { color: white; font-size: 1.4rem; font-weight: 800; margin-bottom: 12px; }
    .article-cta p { color: rgba(255,255,255,.8); margin-bottom: 24px; }
    .btn-whatsapp { display: inline-flex; align-items: center; gap: 10px; background: #25D366; color: white; padding: 14px 28px; border-radius: 50px; font-weight: 700; font-size: 1rem; transition: all .3s ease; }
    .btn-whatsapp:hover { background: #1db954; transform: translateY(-2px); }
    .article-footer { background: var(--primary); color: white; text-align: center; padding: 30px 24px; font-size: .85rem; }
    .article-footer a { color: var(--secondary); font-weight: 600; }
    .related { background: var(--light); padding: 50px 24px; }
    .related-inner { max-width: 780px; margin: 0 auto; }
    .related h2 { font-size: 1.3rem; font-weight: 800; color: var(--primary); margin-bottom: 28px; }
    .related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
    .related-card { background: white; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-light); }
    .related-card img { width: 100%; height: 140px; object-fit: cover; }
    .related-card-body { padding: 16px; }
    .related-card-body .cat { font-size: .75rem; color: var(--secondary); font-weight: 700; text-transform: uppercase; margin-bottom: 8px; }
    .related-card-body h3 { font-size: .9rem; font-weight: 700; color: var(--primary); line-height: 1.4; margin-bottom: 10px; }
    .related-card-body a { font-size: .82rem; color: var(--secondary); font-weight: 600; }
    .author-card { display: flex; align-items: flex-start; gap: 20px; background: var(--light); border: 1px solid var(--gray-light); border-radius: var(--radius); padding: 24px; margin: 40px 0 10px; }
    .author-avatar { flex-shrink: 0; width: 80px; height: 80px; border-radius: 50%; overflow: hidden; border: 3px solid var(--secondary); }
    .author-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
    .author-info h4 { font-size: 1rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
    .author-title { font-size: .85rem; color: var(--secondary); font-weight: 600; margin-bottom: 8px; }
    .author-credentials { list-style: none; margin: 0 0 10px 0; padding: 0; }
    .author-credentials li { font-size: .8rem; color: var(--gray); margin-bottom: 3px; }
    .author-credentials li::before { content: ""; margin-right: 6px; }
    .author-bio { font-size: .82rem; color: var(--gray); margin: 0; font-style: italic; }
    @media (max-width: 640px) {
      .article-hero { padding: 40px 16px 36px; }
      .article-wrap { padding: 40px 16px; }
      .article-img { height: 220px; }
      .nav-cta { display: none; }
      .author-card { flex-direction: column; align-items: center; text-align: center; }
    }