:root {
      --post-red: #ac1313;
      --post-red-dark: #7e0d0d;
      --post-red-soft: #fbeded;
      --post-ink: #141b2b;
      --post-muted: #5d6675;
      --post-paper: #fff;
      --post-soft: #f6f5f3;
      --post-line: #e3e6eb;
      --post-green: #158a59;
      --post-radius: 10px;
      --post-shadow: 0 12px 34px rgba(20, 27, 43, .08);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--post-ink);
      background: var(--post-paper);
      font: 400 16px/1.72 Inter, sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: var(--post-red); }
    .post-container { width: min(100% - 40px, 1120px); margin-inline: auto; }
    .reading-progress {
      position: fixed;
      top: 0;
      left: 0;
      z-index: 110;
      width: 0;
      height: 4px;
      background: var(--post-red);
    }
    .post-hero {
      padding: 42px 0 38px;
      border-bottom: 1px solid var(--post-line);
      background: var(--post-soft);
    }
    .breadcrumb { margin-bottom: 18px; font-size: .82rem; color: var(--post-muted); }
    .breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; list-style: none; }
    .breadcrumb li + li::before { content: ">"; margin-right: 6px; opacity: .55; }
    .post-category {
      display: inline-flex;
      padding: 5px 12px;
      margin-bottom: 14px;
      border-radius: 999px;
      color: var(--post-red-dark);
      background: var(--post-red-soft);
      font-size: .74rem;
      font-weight: 800;
      text-transform: uppercase;
    }
    .post-hero h1 {
      max-width: 28ch;
      margin: 0 0 16px;
      font: 800 clamp(2rem, 4vw, 3.25rem)/1.08 Archivo, sans-serif;
      letter-spacing: 0;
    }
    .post-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--post-muted); font-size: .88rem; }
    .post-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 285px;
      gap: 44px;
      align-items: start;
      padding: 42px 0 60px;
    }
    .post-cover { overflow: hidden; margin: 0 0 30px; border-radius: var(--post-radius); box-shadow: var(--post-shadow); }
    .post-cover img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
    .post-content > * + * { margin-top: 18px; }
    .post-content p { margin-bottom: 0; color: var(--post-muted); text-align: justify; }
    .post-content strong { color: var(--post-ink); }
    .post-content h2 {
      margin-bottom: 0;
      padding-top: 26px;
      scroll-margin-top: 76px;
      font: 750 clamp(1.35rem, 2.4vw, 1.8rem)/1.22 Archivo, sans-serif;
      letter-spacing: 0;
    }
    .answer-box {
      padding: 22px 24px;
      border-left: 5px solid var(--post-red);
      border-radius: 0 var(--post-radius) var(--post-radius) 0;
      background: var(--post-red-soft);
    }
    .answer-box p { color: var(--post-ink); }
    .post-sidebar { position: sticky; top: 24px; display: grid; gap: 18px; }
    .post-card { padding: 22px; border: 1px solid var(--post-line); border-radius: var(--post-radius); background: #fff; box-shadow: var(--post-shadow); }
    .post-card h2, .post-card h3 { margin: 0 0 12px; font: 800 .86rem/1.3 Archivo, sans-serif; text-transform: uppercase; }
    .post-toc ol { padding: 0; margin: 0; list-style: none; }
    .post-toc a { display: block; padding: 8px 0 8px 12px; border-left: 3px solid var(--post-line); color: var(--post-muted); font-size: .86rem; text-decoration: none; }
    .post-toc a:hover, .post-toc a.is-active { color: var(--post-red); border-left-color: var(--post-red); }
    .post-contact { color: #fff; border: 0; background: var(--post-red); }
    .post-contact h3 { color: #fff; }
    .post-contact p { margin: 0 0 16px; font-size: .88rem; }
    .post-button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 20px; border-radius: 999px; color: #fff; background: var(--post-green); font-weight: 800; text-decoration: none; }
    .post-button:hover { background: #0e7048; }
    .post-contact .post-button { width: 100%; }
    .post-cta { margin-top: 46px; padding: 38px 30px; border-radius: var(--post-radius); color: #fff; text-align: center; background: linear-gradient(120deg, var(--post-red-dark), var(--post-red)); }
    .post-cta h2 { margin: 0 0 10px; padding: 0; color: #fff; }
    .post-cta p { max-width: 58ch; margin: 0 auto 20px; color: rgba(255,255,255,.9); text-align: center; }
    .post-cta .post-button { color: var(--post-red-dark); background: #fff; }
    .related { padding: 54px 0; border-top: 1px solid var(--post-line); background: var(--post-soft); }
    .related-label { color: var(--post-red); font-size: .75rem; font-weight: 800; text-transform: uppercase; }
    .related h2 { margin: 8px 0 24px; font: 800 clamp(1.65rem, 3vw, 2.35rem)/1.1 Archivo, sans-serif; }
    .related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
    .related-card { overflow: hidden; border: 1px solid var(--post-line); border-radius: var(--post-radius); background: #fff; }
    .related-card img { width: 100%; height: 150px; object-fit: cover; }
    .related-card div { padding: 17px; }
    .related-card h3 { margin: 0; font: 700 1rem/1.38 Archivo, sans-serif; }
    .related-card a { color: var(--post-ink); text-decoration: none; }
    .wa-float {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 90;
      display: grid;
      width: 56px;
      height: 56px;
      place-items: center;
      border-radius: 50%;
      color: #fff;
      background: #16bd68;
      box-shadow: 0 12px 28px rgba(16, 130, 76, .3);
    }
    .wa-float svg { width: 29px; fill: currentColor; }
    @media (max-width: 900px) {
      .post-layout { grid-template-columns: 1fr; }
      .post-sidebar { position: static; }
      .post-toc { display: none; }
      .related-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 620px) {
      .post-container { width: min(100% - 28px, 1120px); }
      .post-hero { padding: 32px 0; }
      .post-layout { padding-top: 28px; }
      .post-cover img { aspect-ratio: 16 / 10; }
      .post-content p { text-align: left; }
      .post-cta { padding: 30px 20px; }
      .wa-float { right: 16px; bottom: 16px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
    }