/* ============================================================
   Blog ICH Soluciones — Estilos específicos del blog
   Complementa a /styles.css (design system principal)
   ============================================================ */

/* ── Blog Hero ──────────────────────────────────────────────── */
.blog-hero {
  padding: calc(var(--header-h) + 4rem) 0 4rem;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: var(--text-inverse);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
}

.blog-hero .container { position: relative; z-index: 1; }

.blog-hero .section-label { color: var(--accent-light); }

/* Breadcrumb dentro del hero (versión light sobre fondo oscuro) */
.breadcrumb__list--hero {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  justify-content: center;
}

.breadcrumb__list--hero li:not(:last-child)::after {
  content: '/';
  margin-left: 0.5rem;
  color: rgba(255,255,255,0.3);
}

.breadcrumb__list--hero a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
}

.breadcrumb__list--hero a:hover { color: var(--accent-light); }

.breadcrumb__list--hero li:last-child { color: rgba(255,255,255,0.55); }

.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  color: var(--text-inverse);
  margin: 0.75rem 0 1.25rem;
  animation: fadeInUp 0.6s ease-out both;
}

.blog-hero p {
  font-size: 1.15rem;
  opacity: 0.85;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.8;
  animation: fadeInUp 0.7s ease-out 0.1s both;
}

/* ── Blog List Section ──────────────────────────────────────── */
.blog-list-section { padding: 80px 0; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

/* ── Blog Card ──────────────────────────────────────────────── */
.blog-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.blog-card__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 2rem;
  color: inherit;
  text-decoration: none;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.blog-card__time {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.blog-card__title {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--primary);
  margin-bottom: 0.75rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
  flex-grow: 1;
}

.blog-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-light);
  margin-top: auto;
}

.blog-card__footer time {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.blog-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ── Tags ───────────────────────────────────────────────────── */
.blog-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: var(--accent-glow);
  color: var(--primary-dark);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: 1px solid var(--accent-light);
}

/* ── Header siempre visible en páginas de blog ────────────────
   El header semitransparente sobre fondo blanco del artículo
   necesita borde y sombra permanentes, no solo al hacer scroll. */
body.blog-page header {
  border-bottom: 1px solid var(--border) !important;
  box-shadow: var(--shadow-sm) !important;
  background: rgba(255,255,255,0.97) !important;
}

/* ── Article Layout ──────────────────────────────────────────── */
.blog-main { padding-top: 0; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
  padding: 3rem 0 6rem;
}

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  /* padding-top compensa EXACTAMENTE la altura del header fijo */
  padding: var(--header-h) 0 0;
  /* La lista interior tiene su propio padding vertical */
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
  padding: 0.85rem 0;  /* padding vertical dentro del breadcrumb */
}

.breadcrumb__list li:not(:last-child)::after {
  content: '/';
  margin-left: 0.5rem;
  color: var(--border);
}

.breadcrumb__list a {
  color: var(--primary);
  transition: color var(--transition);
}

.breadcrumb__list a:hover { color: var(--accent); }

.breadcrumb__list li:last-child {
  color: var(--text-secondary);
  font-weight: 500;
  /* truncar si es muy largo */
  max-width: 40ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Article Content ─────────────────────────────────────────── */
.article-content {
  min-width: 0; /* evitar overflow en grid */
}

.article-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--border-light);
}

.article-header__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.article-reading-time {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: var(--primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.article-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.75rem;
  max-width: none;
}

.article-header__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.article-author__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  flex-shrink: 0;
}

.article-author strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
}

.article-author time {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.1rem;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ── Article Body (estilos tipográficos del contenido MD) ────── */
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
}

.article-body h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--primary);
  margin: 2.5rem 0 1rem;
  padding-top: 0.5rem;
}

.article-body h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--primary-dark);
  margin: 2rem 0 0.75rem;
}

.article-body h4 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 1.5rem 0 0.5rem;
}

.article-body p {
  margin-bottom: 1.5rem;
  max-width: none;
}

.article-body ul,
.article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: revert;
}

.article-body li {
  margin-bottom: 0.5rem;
  line-height: 1.75;
}

.article-body strong { color: var(--primary-dark); }

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.article-body a:hover { color: var(--accent); }

.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: var(--accent-subtle);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-body blockquote p { margin: 0; }

.article-body code {
  font-family: 'Courier New', monospace;
  background: var(--bg-surface);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--border-light);
}

.article-body pre {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 1.5rem 0;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.article-body th {
  background: var(--bg-surface);
  color: var(--primary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--border);
}

.article-body td {
  padding: 0.65rem 1rem;
  border: 1px solid var(--border-light);
  vertical-align: top;
}

.article-body tr:nth-child(even) td { background: var(--bg); }

.article-body hr {
  border: none;
  border-top: 2px solid var(--border-light);
  margin: 2.5rem 0;
}

/* ── Article CTA (al final del artículo) ────────────────────── */
.article-cta {
  margin-top: 4rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-cta__inner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--text-inverse);
  padding: 3rem;
  text-align: center;
}

.article-cta__inner .section-label { color: var(--accent-light); }

.article-cta__inner h2 {
  color: var(--text-inverse);
  margin: 0.75rem 0 1rem;
}

.article-cta__inner p {
  opacity: 0.85;
  max-width: 520px;
  margin: 0 auto 2rem;
}

.article-cta__btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.article-cta__btns .btn-outline-dark {
  color: var(--text-inverse);
  border-color: rgba(255,255,255,0.4);
}

.article-cta__btns .btn-outline-dark:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-inverse);
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.article-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.sidebar-widget--cta {
  background: linear-gradient(145deg, var(--primary-dark), var(--primary));
  border-color: transparent;
  color: var(--text-inverse);
}

.sidebar-widget--cta .section-label { color: var(--accent-light); }
.sidebar-widget--cta h3,
.sidebar-widget--cta .sidebar-widget__heading {
  color: var(--text-inverse);
  font-size: 1.15rem;
  margin: 0.5rem 0 0.75rem;
}
.sidebar-widget--cta p { opacity: 0.85; font-size: 0.9rem; margin: 0; max-width: none; }

.sidebar-phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  transition: color var(--transition);
}

.sidebar-phone:hover { color: var(--accent-light); }

.sidebar-widget__title {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.sidebar-back-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--transition), color var(--transition);
}

.sidebar-back-link:hover { gap: 0.8rem; color: var(--accent); }

.sidebar-service-list { display: flex; flex-direction: column; gap: 0.6rem; }

.sidebar-service-list a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border-light);
  transition: color var(--transition), padding-left var(--transition);
  display: block;
}

.sidebar-service-list a:hover {
  color: var(--primary);
  padding-left: 0.5rem;
}

.sidebar-service-list li:last-child a { border-bottom: none; }

/* ── Animaciones (reutiliza las del design system principal) ─── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    grid-template-columns: 1fr;
  }

  .article-cta__inner {
    padding: 2rem 1.5rem;
  }

  .article-header__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .breadcrumb__list li:last-child {
    max-width: 25ch;
  }
}

@media (max-width: 480px) {
  .article-layout { padding: 2rem 0 4rem; }
  .blog-list-section { padding: 60px 0; }
  .article-cta__btns { flex-direction: column; align-items: center; }
}