/* ==========================================================================
   BLOG.CSS — Estilos para listado de blog y posts individuales
   ========================================================================== */

/* ---------- Blog index (listado) ---------- */
.blog-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  max-width: 920px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .blog-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: all var(--duration-normal) var(--ease-out-back);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: hsla(var(--primary-hsl), 0.5);
  box-shadow: var(--shadow-lg);
}

.blog-card:hover::before {
  transform: scaleY(1);
}

.blog-card__meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.blog-card__category {
  color: var(--color-primary);
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.blog-card__title a {
  color: inherit;
  text-decoration: none;
}

.blog-card__title a:hover {
  color: var(--color-primary);
}

.blog-card__excerpt {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
  flex-grow: 1;
}

.blog-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.blog-card__read-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.blog-card__cta {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--duration-fast);
}

.blog-card:hover .blog-card__cta {
  gap: 0.7rem;
}

/* ---------- Post individual ---------- */
.blog-post {
  padding-top: calc(80px + var(--space-md));
}

.blog-post__header {
  padding: var(--space-xl) 0 var(--space-md);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.blog-post__header::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 60%; height: 140%;
  background: radial-gradient(circle at 30% 30%, hsla(var(--primary-hsl), 0.15), transparent 50%);
  pointer-events: none;
  filter: blur(40px);
}

.blog-post__header-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 1;
}

.blog-post__meta {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.blog-post__category {
  padding: 0.3rem 0.85rem;
  background: hsla(var(--primary-hsl), 0.12);
  border: 1px solid hsla(var(--primary-hsl), 0.3);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

.blog-post__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.blog-post__title em {
  font-style: normal;
  font-family: var(--font-accent);
  color: var(--color-primary);
  font-size: 1.1em;
  display: inline-block;
  transform: rotate(-2deg);
}

.blog-post__excerpt {
  font-family: var(--font-body);
  font-size: clamp(1.125rem, 1.75vw, 1.375rem);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin: 0;
}

.blog-post__author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  margin-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.blog-post__author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  object-fit: cover;
}

.blog-post__author-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.blog-post__author-name {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
}

.blog-post__author-role {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Body */
.blog-post__body {
  padding: var(--space-lg) 0;
  max-width: 720px;
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Related posts at bottom */
.blog-related {
  padding: var(--space-lg) 0;
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-border);
}

.blog-related__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  margin: 0 0 var(--space-md);
  color: var(--color-text);
  text-align: center;
}

/* Newsletter CTA in posts */
.blog-newsletter-cta {
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-2) 100%);
  border: 1px solid hsla(var(--primary-hsl), 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.blog-newsletter-cta__title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.blog-newsletter-cta__lead {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm);
}