/* ============================================================
   MAI BUSINESS LAB — Extensión de estilos para artículos de blog
   Se apoya en las variables y tokens definidos en style.css
   ============================================================ */

/* --- Migas de pan --- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--text-muted);
    margin-bottom: 28px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--gold-deep); }
.breadcrumb span.sep { color: var(--line-strong); }
.breadcrumb span.current { color: var(--ink); font-weight: 500; }

/* --- Cabecera del artículo --- */
.article-header { max-width: 780px; margin: 0 auto 48px; text-align: left; }

.article-header h1 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.9rem, 3.2vw, 2.7rem);
    line-height: 1.16;
    color: var(--ink);
    letter-spacing: -0.01em;
    margin-bottom: 18px;
}

.article-dek {
    font-size: 17px;
    color: var(--text-muted);
    max-width: 62ch;
    margin-bottom: 22px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    padding-top: 18px;
    border-top: 1px dashed var(--line-strong);
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--text-muted);
}
.article-meta strong { color: var(--ink); font-weight: 600; }

/* --- Cuerpo del artículo --- */
.article-body {
    max-width: 780px;
    margin: 0 auto;
    font-size: 16.5px;
    color: var(--text);
}

.article-body > p:first-of-type {
    font-size: 18px;
    color: var(--ink);
    font-weight: 500;
    line-height: 1.55;
    margin-bottom: 28px;
}

.article-body h2 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.3rem, 2vw, 1.6rem);
    color: var(--ink);
    letter-spacing: -0.01em;
    margin: 46px 0 18px;
    padding-top: 4px;
}

.article-body h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--ink);
    margin: 30px 0 12px;
}

.article-body p { margin-bottom: 18px; line-height: 1.7; }

.article-body ul, .article-body ol {
    margin: 0 0 20px 0;
    padding-left: 0;
}
.article-body ul li, .article-body ol li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    line-height: 1.6;
}
.article-body ul li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--gold-deep);
}
.article-body ol { counter-reset: art-ol; }
.article-body ol li { counter-increment: art-ol; }
.article-body ol li::before {
    content: counter(art-ol) ".";
    position: absolute;
    left: 0;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--gold-deep);
}

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

/* --- Tabla fiscal --- */
.table-wrap { overflow-x: auto; margin: 8px 0 28px; border: 1px solid var(--line); border-radius: var(--radius); }
.table-fiscal {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--card);
}
.table-fiscal th {
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-align: left;
    color: #fff;
    background: var(--ink);
    padding: 12px 16px;
}
.table-fiscal td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    color: var(--text);
}
.table-fiscal tr:last-child td { border-bottom: none; }
.table-fiscal tr:nth-child(even) td { background: var(--paper-2); }

/* --- Aviso / caja destacada --- */
.callout {
    background: var(--paper-2);
    border-left: 3px solid var(--gold);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 18px 22px;
    margin: 8px 0 28px;
    font-size: 15px;
    color: var(--text);
}
.callout strong { color: var(--ink); }

/* --- Errores frecuentes --- */
.error-list li::before { content: "✕"; color: #B4442E; font-size: 12px; top: 2px; }

/* --- FAQ (acordeón nativo) --- */
.faq-block { margin-top: 12px; }
.faq-item {
    border-bottom: 1px solid var(--line);
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 18px 2px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 16px;
    color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: "+";
    font-family: var(--font-mono);
    font-size: 20px;
    color: var(--gold-deep);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
    padding-bottom: 18px;
    color: var(--text-muted);
    font-size: 15px;
    max-width: 68ch;
}

/* --- CTA inline dentro del artículo --- */
.article-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    background: var(--ink);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 30px 34px;
    margin: 44px 0;
}
.article-cta p { color: #C7D2D9; font-size: 14.5px; max-width: 50ch; margin: 0; }
.article-cta .btn-primary { background: var(--gold); color: var(--ink); flex-shrink: 0; }
.article-cta .btn-primary:hover { background: var(--gold-light); }

/* --- Descarga PDF --- */
.pdf-download {
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin: 8px 0 36px;
    background: var(--card);
}
.pdf-download .pdf-icon {
    width: 42px; height: 42px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--paper-2); border-radius: var(--radius);
    font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--gold-deep);
}
.pdf-download .pdf-text { flex: 1; }
.pdf-download .pdf-text strong { display: block; font-size: 14.5px; color: var(--ink); }
.pdf-download .pdf-text span { font-size: 12.5px; color: var(--text-muted); }
.pdf-download a.btn-secondary { padding: 9px 18px; font-size: 13.5px; }

/* --- Compartido / etiquetas de cierre --- */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; }
.article-tags span {
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-muted);
    background: var(--paper-2);
    padding: 5px 12px;
    border-radius: 999px;
}

@media (max-width: 720px) {
    .article-cta { flex-direction: column; align-items: flex-start; text-align: left; }
    .pdf-download { flex-wrap: wrap; }
}