/* ═══════════════════════════════════════════════════════════════
   OficioYa — Estilos compartidos de páginas de contenido
   Usado por /verifactu/, /iva-reformas-10-o-21/ y páginas de oficio.
   Alineado con los design tokens de index.html
   ═══════════════════════════════════════════════════════════════ */

:root {
  --primary-50:  #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;

  --accent-50:  #FFFBEB;
  --accent-100: #FEF3C7;
  --accent-400: #FBBF24;
  --accent-500: #F59E0B;
  --accent-700: #B45309;

  --gray-50:  #FAFAF9;
  --gray-100: #F5F5F4;
  --gray-200: #E7E5E4;
  --gray-300: #D6D3D1;
  --gray-400: #A8A29E;
  --gray-500: #78716C;
  --gray-600: #57534E;
  --gray-700: #44403C;
  --gray-800: #292524;
  --gray-900: #1C1917;

  --green-50:  #F0FDF4;
  --green-600: #16A34A;
  --green-700: #15803D;

  --red-50:  #FEF2F2;
  --red-500: #EF4444;
  --red-700: #B91C1C;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-800);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─── Cabecera ─────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--gray-200);
}
.site-header .inner {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.logo { font-size: 19px; font-weight: 800; color: var(--gray-900); text-decoration: none; letter-spacing: -0.4px; }
.logo span { color: var(--primary-500); }
.header-cta {
  background: var(--primary-500); color: #fff; text-decoration: none;
  padding: 9px 18px; border-radius: var(--radius-full);
  font-size: 14px; font-weight: 600; white-space: nowrap;
  transition: background 0.2s;
}
.header-cta:hover { background: var(--primary-600); }

/* ─── Layout ───────────────────────────────────────────────── */
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

.breadcrumb { font-size: 13px; color: var(--gray-500); padding: 24px 0 0; }
.breadcrumb a { color: var(--gray-500); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary-600); text-decoration: underline; }
.breadcrumb span { margin: 0 6px; color: var(--gray-300); }

.article-header { padding: 24px 0 8px; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--primary-600); margin-bottom: 14px;
}
h1 {
  font-size: clamp(30px, 5vw, 44px); font-weight: 800;
  line-height: 1.15; letter-spacing: -1px;
  color: var(--gray-900); margin-bottom: 18px;
}
.lead { font-size: clamp(17px, 2.2vw, 19px); color: var(--gray-600); line-height: 1.65; }
.meta {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--gray-200);
  font-size: 13px; color: var(--gray-500);
}

/* ─── Cuerpo del artículo ──────────────────────────────────── */
article { padding-bottom: 40px; }
article h2 {
  font-size: clamp(23px, 3.4vw, 30px); font-weight: 800;
  letter-spacing: -0.5px; color: var(--gray-900);
  margin: 52px 0 16px; scroll-margin-top: 80px;
}
article h3 {
  font-size: clamp(18px, 2.4vw, 21px); font-weight: 700;
  color: var(--gray-900); margin: 34px 0 10px; scroll-margin-top: 80px;
}
article p { font-size: 16.5px; color: var(--gray-700); margin-bottom: 18px; }
article ul, article ol { margin: 0 0 20px 22px; }
article li { font-size: 16.5px; color: var(--gray-700); margin-bottom: 9px; }
article a { color: var(--primary-600); text-decoration: underline; text-underline-offset: 2px; }
article a:hover { color: var(--primary-700); }
article strong { color: var(--gray-900); font-weight: 650; }

/* ─── Tabla de contenidos ──────────────────────────────────── */
.toc {
  background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 22px 26px; margin: 32px 0 8px;
}
.toc h2 {
  font-size: 13px !important; font-weight: 700; letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--gray-500);
  margin: 0 0 12px !important;
}
.toc ol { margin: 0 0 0 18px; }
.toc li { font-size: 15px; margin-bottom: 7px; }
.toc a { color: var(--gray-700); text-decoration: none; }
.toc a:hover { color: var(--primary-600); text-decoration: underline; }

/* ─── Cajas destacadas ─────────────────────────────────────── */
.callout {
  border-left: 4px solid var(--primary-500); background: var(--primary-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 18px 22px; margin: 26px 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout.warn   { border-left-color: var(--accent-500); background: var(--accent-50); }
.callout.danger { border-left-color: var(--red-500);    background: var(--red-50); }
.callout.ok     { border-left-color: var(--green-600);  background: var(--green-50); }
.callout .callout-title {
  font-weight: 700; font-size: 14px; letter-spacing: 0.3px;
  text-transform: uppercase; margin-bottom: 6px; color: var(--primary-700);
}
.callout.warn   .callout-title { color: var(--accent-700); }
.callout.danger .callout-title { color: var(--red-700); }
.callout.ok     .callout-title { color: var(--green-700); }

/* ─── Tablas ───────────────────────────────────────────────── */
.table-scroll { overflow-x: auto; margin: 24px 0; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 460px; }
th {
  background: var(--gray-100); color: var(--gray-800);
  font-weight: 700; text-align: left; padding: 12px 14px;
  border-bottom: 2px solid var(--gray-200); font-size: 14px;
}
td { padding: 12px 14px; border-bottom: 1px solid var(--gray-200); color: var(--gray-700); }
tr:last-child td { border-bottom: none; }

/* ─── Tarjetas de fecha ────────────────────────────────────── */
.date-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 26px 0; }
@media (max-width: 640px) { .date-cards { grid-template-columns: 1fr; } }
.date-card {
  border: 1px solid var(--gray-200); border-left: 4px solid var(--primary-500);
  border-radius: var(--radius-md); padding: 18px 20px; background: #fff;
}
.date-card.highlight { border-left-color: var(--accent-500); background: var(--accent-50); }
.date-card .who {
  font-size: 12px; font-weight: 700; letter-spacing: 0.8px;
  text-transform: uppercase; color: var(--primary-600); margin-bottom: 5px;
}
.date-card.highlight .who { color: var(--accent-700); }
.date-card .when { font-size: 23px; font-weight: 800; color: var(--gray-900); line-height: 1.2; margin-bottom: 6px; }
.date-card .note { font-size: 14px; color: var(--gray-600); line-height: 1.55; }

/* ─── FAQ ──────────────────────────────────────────────────── */
.faq details {
  border: 1px solid var(--gray-200); border-radius: var(--radius-md);
  padding: 16px 20px; margin-bottom: 12px; background: #fff;
}
.faq summary {
  font-weight: 650; font-size: 16px; color: var(--gray-900);
  cursor: pointer; list-style: none; display: flex;
  justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 22px; color: var(--primary-500); font-weight: 400; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq details[open] summary { margin-bottom: 10px; }
.faq details p { font-size: 15.5px; margin-bottom: 0; }

/* ─── CTA ──────────────────────────────────────────────────── */
.cta-box {
  background: linear-gradient(135deg, var(--gray-900) 0%, #0c1420 100%);
  border-radius: var(--radius-lg); padding: 36px 32px;
  margin: 48px 0 8px; text-align: center;
}
.cta-box h2 { color: #fff !important; margin: 0 0 12px !important; font-size: clamp(21px, 3vw, 26px) !important; }
.cta-box p { color: var(--gray-300); font-size: 16px; max-width: 500px; margin: 0 auto 22px; }
.cta-btn {
  display: inline-block; background: var(--primary-500); color: #fff;
  text-decoration: none; padding: 14px 32px; border-radius: var(--radius-full);
  font-weight: 650; font-size: 16px; transition: background 0.2s;
}
.cta-btn:hover { background: var(--primary-400); }
.cta-note { font-size: 13px; color: var(--gray-400); margin-top: 14px; }

/* ─── Enlaces relacionados ─────────────────────────────────── */
.related { margin: 48px 0 0; padding-top: 32px; border-top: 1px solid var(--gray-200); }
.related h2 { font-size: 19px !important; margin: 0 0 16px !important; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
  border: 1px solid var(--gray-200); border-radius: var(--radius-md);
  padding: 16px 18px; text-decoration: none; display: block;
  transition: border-color 0.2s, box-shadow 0.2s; background: #fff;
}
.related-card:hover { border-color: var(--primary-300); box-shadow: 0 2px 12px rgba(0,0,0,0.05); }
.related-card .rc-title { font-weight: 650; font-size: 15.5px; color: var(--gray-900); margin-bottom: 4px; }
.related-card .rc-desc { font-size: 13.5px; color: var(--gray-500); line-height: 1.5; }

/* ─── Aviso legal ──────────────────────────────────────────── */
.disclaimer {
  margin-top: 40px; padding: 18px 20px; background: var(--gray-50);
  border: 1px solid var(--gray-200); border-radius: var(--radius-md);
  font-size: 13.5px; color: var(--gray-500); line-height: 1.6;
}

/* ─── Pie ──────────────────────────────────────────────────── */
.site-footer {
  margin-top: 64px; padding: 36px 0; border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}
.site-footer .inner {
  max-width: 760px; margin: 0 auto; padding: 0 24px;
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: space-between; align-items: center;
}
.site-footer p { font-size: 13.5px; color: var(--gray-500); }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { font-size: 13.5px; color: var(--gray-500); text-decoration: none; }
.footer-links a:hover { color: var(--primary-600); text-decoration: underline; }