* { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: 'Libre Franklin', ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    background: #FAFAF7;
    color: #1F2937;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
  }
  a { color: inherit; }
  /* Site nav */
  .site-nav { border-bottom: 1px solid #E5E0D6; background: #FAFAF7; }
  .nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 32px; max-width: 1200px; margin: 0 auto;
  }
  .logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 17px; font-weight: 500; letter-spacing: -0.01em;
    color: #1F2937; text-decoration: none;
  }
  .logo .mark {
    width: 28px; height: 28px; background: #2D3A47; color: #FAFAF7;
    border-radius: 5px; display: inline-flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
  }
  .nav-links { display: flex; gap: 28px; font-size: 14px; color: #4B5563; }
  .nav-links a { color: inherit; text-decoration: none; }
  .nav-links a:hover { color: #1F2937; }
  .nav-links a.is-active { color: #1F2937; font-weight: 500; }
  .nav-cta {
    background: #C2410C; color: #FAFAF7; padding: 9px 16px; border-radius: 5px;
    font-size: 14px; font-weight: 500; text-decoration: none; transition: background 0.15s;
  }
  .nav-cta:hover { background: #9A3308; }
  /* Article styles */
  .post-header { background: #FAFAF7; padding: 56px 0 48px; }
  .post-header-inner { max-width: 760px; margin: 0 auto; padding: 0 32px; }
  .breadcrumb { font-size: 13px; color: #6B7280; margin-bottom: 22px; }
  .breadcrumb a { color: #C2410C; text-decoration: none; }
  .breadcrumb a:hover { color: #9A3308; text-decoration: underline; }
  .breadcrumb .sep { color: #C8C2B5; margin: 0 8px; }
  .post-meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
    margin-bottom: 22px; font-size: 12.5px; color: #6B7280;
  }
  .post-tag {
    display: inline-block; background: #F4F1E8; border: 1px solid #E5E0D6;
    color: #1F2937; font-size: 11px; font-weight: 500; padding: 3px 9px;
    border-radius: 4px; letter-spacing: 0.04em; text-transform: uppercase;
  }
  .post-dot {
    width: 3px; height: 3px; background: #C8C2B5; border-radius: 50%; display: inline-block;
  }
  .post-header h1 {
    font-size: 44px; font-weight: 500; letter-spacing: -0.025em;
    line-height: 1.1; color: #1F2937; margin: 0 0 22px;
  }
  .post-header .lead {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 21px; line-height: 1.5; color: #1F2937; margin: 0;
  }
  .post-body-wrap {
    background: #FFFFFF; border-top: 1px solid #E5E0D6; padding: 64px 0;
  }
  .post-body {
    max-width: 720px; margin: 0 auto; padding: 0 32px;
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 18px; line-height: 1.7; color: #1F2937;
  }
  .post-body h2 {
    font-family: 'Libre Franklin', sans-serif;
    font-size: 26px; font-weight: 500; letter-spacing: -0.015em;
    line-height: 1.2; color: #1F2937; margin: 44px 0 16px;
  }
  .post-body p { margin: 0 0 18px; }
  .post-body ul, .post-body ol { padding-left: 24px; margin: 0 0 24px; }
  .post-body li { margin-bottom: 10px; }
  .post-body strong { font-weight: 600; }
  .post-body blockquote {
    border-left: 3px solid #C2410C; padding: 2px 0 2px 22px;
    margin: 28px 0; font-style: italic; color: #1F2937;
  }
  .post-body figure {
    margin: 32px 0; background: #FFFFFF;
    border: 1px solid #E5E0D6; border-radius: 10px; overflow: hidden;
  }
  .post-body figure img { width: 100%; display: block; }
  .post-body figure.narrow { max-width: 480px; margin-left: auto; margin-right: auto; }
  .post-body figure figcaption {
    font-family: 'Libre Franklin', sans-serif;
    padding: 12px 20px; font-size: 13px; color: #6B7280;
    background: #FAFAF7; border-top: 1px solid #E5E0D6;
  }
  .post-cta-wrap {
    background: #1F2937; color: #FAFAF7; padding: 80px 0;
    border-top: 1px solid #E5E0D6;
  }
  .post-cta { max-width: 720px; margin: 0 auto; padding: 0 32px; text-align: center; }
  .post-cta h2 {
    font-size: 36px; font-weight: 500; letter-spacing: -0.022em;
    line-height: 1.15; color: #FAFAF7; margin: 0 0 16px;
  }
  .post-cta p {
    font-size: 17px; line-height: 1.55; color: #9AA0AB;
    max-width: 32em; margin: 0 auto 32px;
  }
  .post-cta .cta-final {
    background: #C2410C; color: #FAFAF7; padding: 14px 28px;
    border-radius: 6px; font-size: 15px; font-weight: 500;
    text-decoration: none; display: inline-block; transition: background 0.15s;
  }
  .post-cta .cta-final:hover { background: #9A3308; }
  .post-cta .cta-trust { font-size: 12.5px; color: #6B7280; margin-top: 16px; }
  .post-bottom-nav {
    background: #FAFAF7; padding: 32px 0; text-align: center;
    border-top: 1px solid #E5E0D6;
  }
  .post-bottom-nav a {
    color: #C2410C; text-decoration: none; font-weight: 500; font-size: 14px;
  }
  .post-bottom-nav a:hover { color: #9A3308; }
  /* Site footer */
  .site-footer { background: #1F2937; color: #C8C2B5; padding: 64px 0 40px; }
  .footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
  .footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr;
    gap: 56px; margin-bottom: 48px;
  }
  .footer-brand .logo { color: #FAFAF7; }
  .footer-brand p {
    font-size: 14px; line-height: 1.55; margin: 18px 0 0;
    color: #9AA0AB; max-width: 32em;
  }
  .footer-col h4 {
    font-size: 11px; color: #FAFAF7; text-transform: uppercase;
    letter-spacing: 0.12em; font-weight: 500; margin: 0 0 18px;
  }
  .footer-col a {
    display: block; width: fit-content; color: #9AA0AB; text-decoration: none;
    font-size: 14px; margin-bottom: 12px; transition: color 0.15s;
  }
  .footer-col a:hover { color: #FAFAF7; }
  .footer-bottom {
    border-top: 1px solid #2D3A47; padding-top: 24px;
    display: flex; justify-content: space-between;
    font-size: 12.5px; color: #6B7280;
  }
  @media (max-width: 860px) {
    .nav-links { display: none; }
    .post-header { padding: 40px 0 28px; }
    .post-header h1 { font-size: 30px; }
    .post-header .lead { font-size: 17px; }
    .post-body-wrap { padding: 40px 0 48px; }
    .post-body { font-size: 16.5px; line-height: 1.65; }
    .post-body h2 { font-size: 22px; margin: 32px 0 14px; }
    .post-cta-wrap { padding: 56px 0; }
    .post-cta h2 { font-size: 26px; }
    .post-cta p { font-size: 15.5px; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; margin-bottom: 36px; }
    .footer-bottom { flex-direction: column; gap: 8px; }
  }
  /* Guide additions */
  .post-body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85em;
    background: #F4F1E8; border: 1px solid #E5E0D6; border-radius: 4px; padding: 1px 5px;
  }
  .ui { font-family: 'Libre Franklin', sans-serif; font-size: 0.9em; font-weight: 600; }
  .post-body ol.steps { counter-reset: step; list-style: none; padding-left: 0; }
  .post-body ol.steps > li {
    counter-increment: step; position: relative; padding-left: 44px; margin-bottom: 18px;
  }
  .post-body ol.steps > li::before {
    content: counter(step); position: absolute; left: 0; top: 2px;
    width: 28px; height: 28px; border-radius: 50%; background: #2D3A47; color: #FAFAF7;
    font-family: 'Libre Franklin', sans-serif; font-size: 13px; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
  }
  .post-body .note {
    font-family: 'Libre Franklin', sans-serif; font-size: 15px; line-height: 1.55;
    background: #FAFAF7; border: 1px solid #E5E0D6; border-left: 3px solid #C2410C;
    border-radius: 6px; padding: 14px 18px; margin: 24px 0;
  }
  .post-body .note strong:first-child { display: block; margin-bottom: 4px; }
  .guide-related {
    font-family: 'Libre Franklin', sans-serif; font-size: 15px;
    border-top: 1px solid #E5E0D6; margin-top: 44px; padding-top: 20px;
  }
  .guide-related a, .post-body a { color: #C2410C; }
  /* Guide index */
  .guide-sections {
    max-width: 960px; margin: 0 auto; padding: 0 32px;
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
  }
  .guide-section {
    background: #FFFFFF; border: 1px solid #E5E0D6; border-radius: 10px; padding: 24px 26px;
  }
  .guide-section h2 { font-size: 18px; font-weight: 600; margin: 0 0 6px; }
  .guide-section p { font-size: 14px; color: #6B7280; margin: 0 0 14px; }
  .guide-section ul { list-style: none; padding: 0; margin: 0; font-size: 15px; }
  .guide-section li { padding: 6px 0; border-top: 1px solid #F4F1E8; }
  .guide-section li a { color: #C2410C; text-decoration: none; }
  .guide-section li a:hover { text-decoration: underline; }
  .guide-section li.soon { color: #9AA0AB; }
  .guide-section li.soon::after { content: " — coming soon"; font-size: 12.5px; }
  @media (max-width: 860px) {
    .guide-sections { grid-template-columns: 1fr; padding: 0 16px; }
  }