/* ============================
   Estilos específicos del blog
   Hereda variables y resets de ../styles.css
   ============================ */

/* ===== Cabecera del listado ===== */
.blog-header {
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}
.blog-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 30%, rgba(124, 58, 237, 0.18), transparent 60%),
              radial-gradient(ellipse at 80% 70%, rgba(20, 224, 209, 0.12), transparent 60%);
  pointer-events: none;
  z-index: -1;
}
.blog-header h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 880px;
}
.blog-header p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 720px;
}

/* ===== Filtros por cluster ===== */
.cluster-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 40px 0 60px;
}
.cluster-filter {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.cluster-filter:hover { border-color: rgba(124, 58, 237, 0.4); color: var(--text); }
.cluster-filter.is-active {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}

/* ===== Grid de posts ===== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding-bottom: 100px;
}
.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.post-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.5);
}
.post-card__image {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(20, 224, 209, 0.1));
  overflow: hidden;
  position: relative;
}
.post-card__image img {
  width: 100% !important;
  height: auto !important;
  display: block;
  transition: transform 0.4s var(--ease);
}
.post-card:hover .post-card__image img { transform: scale(1.04); }

.post-card__body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.post-card__cluster {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(20, 224, 209, 0.12);
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
  width: fit-content;
}
.post-card h2 {
  font-size: 1.18rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.post-card__excerpt {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 18px;
  flex: 1;
}
.post-card__meta {
  display: flex;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.post-card__meta span::before { content: "·"; margin-right: 14px; color: var(--text-muted); opacity: 0.5; }
.post-card__meta span:first-child::before { content: ""; margin-right: 0; }

/* ===== Cabecera del post ===== */
.post-header {
  padding: 48px 0 24px;
  position: relative;
  overflow: hidden;
}
.post-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 0%, rgba(124, 58, 237, 0.18), transparent 60%);
  pointer-events: none;
  z-index: -1;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-soft); transition: color 0.2s var(--ease); }
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb span { opacity: 0.6; }

.post-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(124, 58, 237, 0.14);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 20px;
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.post-title {
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
  max-width: 920px;
}
.post-lede {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-soft);
  max-width: 820px;
  line-height: 1.6;
  margin-bottom: 28px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 18px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  color: var(--text-muted);
}
.post-meta__author {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 500;
}
.post-meta__author img {
  width: 38px; height: 38px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--gradient);
}
.post-meta__sep { opacity: 0.4; }

/* ===== Imagen hero del post ===== */
.post-hero {
  margin: 32px 0 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
}
.post-hero img {
  width: 100% !important;
  height: auto !important;
  aspect-ratio: auto !important;
  object-fit: contain !important;
  display: block;
  /* Sin aspect-ratio forzada: la imagen mantiene su proporción natural */
}

/* ===== Cuerpo del artículo ===== */
.post-body {
  max-width: 820px;
  margin: 0 auto;
  padding-bottom: 80px;
}
.post-body p {
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--text-soft);
  margin-bottom: 22px;
}
.post-body h2 {
  font-size: clamp(1.6rem, 2.6vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 56px 0 20px;
  color: var(--text);
  line-height: 1.2;
}
.post-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 36px 0 14px;
  color: var(--text);
}
.post-body h2 + p, .post-body h3 + p { margin-top: 0; }
.post-body strong { color: var(--text); font-weight: 600; }
.post-body em { color: var(--text-soft); }
.post-body ul, .post-body ol {
  margin: 0 0 24px 4px;
  padding-left: 22px;
  color: var(--text-soft);
}
.post-body li {
  margin-bottom: 10px;
  line-height: 1.7;
  font-size: 1.04rem;
}
.post-body ul li::marker { color: var(--teal); }
.post-body ol li::marker { color: var(--purple); font-weight: 700; }

.post-body a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-color: rgba(20, 224, 209, 0.4);
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}
.post-body a:hover { color: #40f0e0; text-decoration-color: #40f0e0; }

.post-body blockquote {
  margin: 32px 0;
  padding: 24px 28px;
  border-left: 3px solid var(--purple);
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.08), transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.08rem;
  color: var(--text);
  font-style: italic;
}
.post-body blockquote p:last-child { margin-bottom: 0; }

/* Tabla */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.96rem;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.post-body th, .post-body td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.post-body th {
  background: rgba(124, 58, 237, 0.1);
  font-weight: 600;
  color: var(--text);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.post-body tr:last-child td { border-bottom: none; }
.post-body tr:hover { background: rgba(255, 255, 255, 0.02); }

/* Imagen inline */
.post-image {
  margin: 40px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.post-image img {
  width: 100% !important;
  height: auto !important;
  aspect-ratio: auto !important;
  object-fit: contain !important;
  display: block;
  /* Sin aspect-ratio forzada: la imagen mantiene su proporción natural */
}
.post-image figcaption {
  padding: 14px 20px;
  font-size: 0.86rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

/* TOC */
.post-toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin: 32px 0 48px;
}
.post-toc h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}
.post-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
  display: grid;
  gap: 8px;
}
.post-toc li {
  counter-increment: toc;
  padding-left: 32px;
  position: relative;
  font-size: 0.95rem;
}
.post-toc li::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--purple);
  font-weight: 700;
}
.post-toc a { color: var(--text-soft); transition: color 0.2s var(--ease); text-decoration: none; }
.post-toc a:hover { color: var(--teal); }

/* Key takeaways */
.key-takeaways {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(20, 224, 209, 0.05));
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin: 40px 0;
}
.key-takeaways h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 16px;
  font-family: 'JetBrains Mono', monospace;
}
.key-takeaways ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.key-takeaways li {
  padding-left: 28px;
  position: relative;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.6;
}
.key-takeaways li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px; height: 20px;
  display: grid;
  place-items: center;
  background: var(--gradient);
  color: #fff;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 800;
}

/* CTA box dentro del post */
.post-cta {
  margin: 48px 0;
  padding: 36px 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.16), rgba(20, 224, 209, 0.08));
  border: 1px solid rgba(124, 58, 237, 0.3);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.post-cta::before {
  content: "";
  position: absolute;
  top: -50px; right: -50px;
  width: 200px; height: 200px;
  background: var(--gradient);
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}
.post-cta h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.post-cta p {
  color: var(--text-soft);
  margin-bottom: 22px;
  font-size: 1rem;
}
.post-cta .btn { position: relative; z-index: 1; }

/* Bio del autor */
.author-bio {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  align-items: center;
  margin: 56px 0 32px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.author-bio__avatar {
  width: 110px; height: 110px;
  border-radius: 50%;
  background: var(--gradient);
  overflow: hidden;
  border: 2px solid rgba(124, 58, 237, 0.3);
}
.author-bio__avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}
.author-bio h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.author-bio__role {
  display: block;
  font-size: 0.86rem;
  color: var(--teal);
  margin-bottom: 10px;
  font-family: 'JetBrains Mono', monospace;
}
.author-bio p {
  color: var(--text-soft);
  font-size: 0.96rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* FAQ del artículo (reutiliza .faq de la landing) */
.post-body .faq { max-width: 100%; }
.post-body .faq__item summary { font-size: 1.02rem; }

/* Posts relacionados */
.related-posts {
  padding: 60px 0 80px;
  border-top: 1px solid var(--border);
}
.related-posts h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 28px;
}
.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Mobile blog */
@media (max-width: 980px) {
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .related-posts__grid { grid-template-columns: repeat(2, 1fr); }
  .author-bio { grid-template-columns: 1fr; text-align: center; padding: 24px; }
  .author-bio__avatar { margin: 0 auto; }
}

@media (max-width: 720px) {
  .blog-header { padding: 60px 0 40px; }
  .post-header { padding: 32px 0 16px; }
  .posts-grid { grid-template-columns: 1fr; gap: 20px; }
  .related-posts__grid { grid-template-columns: 1fr; }
  .post-body p, .post-body li { font-size: 1rem; }
  .post-cta { padding: 28px 22px; }
  .post-cta h3 { font-size: 1.2rem; }
  .post-toc, .key-takeaways { padding: 22px; }
}