/* =============================================
   SYNAPXXIS - blog.css
   Estilos específicos del blog
============================================= */

/* ==============================
   HERO DEL BLOG
============================== */
.blog-hero {
  background: linear-gradient(135deg, rgba(240,253,250,0.8) 0%, rgba(237,233,254,0.6) 50%, rgba(240,253,250,0.8) 100%);
  padding: 4.5rem 1.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,230,208,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(106,13,173,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero-content {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.blog-hero-tag {
  display: inline-block;
  background: linear-gradient(135deg, #6A0DAD, #00E6D0);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 20px;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-hero-title {
  font-weight: 800;
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 2rem;
  background: linear-gradient(90deg, #6A0DAD, #00E6D0, #ffffff, #6A0DAD);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

.blog-hero-subtitle {
  display: none;
}

/* ==============================
   FILTROS DE CATEGORÍA
============================== */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.blog-filter-btn {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.88rem;
  padding: 8px 20px;
  border-radius: 50px;
  border: 2px solid rgba(106,13,173,0.2);
  background: #ffffff;
  color: #6A0DAD;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.blog-filter-btn:hover {
  border-color: #00E6D0;
  color: #00E6D0;
  transform: translateY(-2px);
  background: #ffffff;
}

.blog-filter-btn.active {
  background: linear-gradient(135deg, #6A0DAD, #00E6D0);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(106,13,173,0.25);
  -webkit-text-fill-color: #ffffff;
}

/* ==============================
   CONTENIDO PRINCIPAL
============================== */
.blog-main {
  background: #ffffff;
  padding: 5rem 0;
}

.blog-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==============================
   BLOQUES DE CATEGORÍA
============================== */
.blog-category-block {
  margin-bottom: 5rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid rgba(106,13,173,0.08);
}

.blog-category-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

/* Ocultar/mostrar por filtro */
.blog-category-block.hidden {
  display: none;
}

.blog-card.hidden {
  display: none;
}

/* Header de categoría */
.blog-category-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding: 1.75rem 2rem;
  background: linear-gradient(135deg, rgba(240,253,250,0.7) 0%, rgba(237,233,254,0.4) 100%);
  border-radius: 20px;
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg, #6A0DAD, #00E6D0) 1;
  position: relative;
  overflow: hidden;
}

.blog-category-header::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,230,208,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.blog-category-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  background: #ffffff;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  padding: 10px;
}

.blog-category-icon svg {
  width: 100%;
  height: 100%;
}

.blog-category-info {
  flex: 1;
}

.blog-category-num {
  display: inline-block;
  font-weight: 800;
  font-size: 0.8rem;
  color: #00E6D0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.blog-category-title {
  font-weight: 700;
  font-size: 1.6rem;
  background: linear-gradient(90deg, #6A0DAD 0%, #4a1d8a 20%, #1a5c8a 50%, #00a89d 75%, #00E6D0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.35rem;
  display: inline-block;
}

.blog-category-desc {
  font-weight: 400;
  font-size: 0.92rem;
  color: #6c757d;
  line-height: 1.5;
}

/* ==============================
   GRID DE TARJETAS
============================== */
.blog-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ==============================
   TARJETA DE ARTÍCULO
============================== */
.blog-card {
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 2px solid transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  position: relative;
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #6A0DAD, #00E6D0);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.11);
  border-color: rgba(0,230,208,0.3);
}

.blog-card:hover::before {
  opacity: 1;
}

/* Imagen de portada en tarjeta */
.blog-card-img {
  width: 100%;
  height: 180px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a0533, #2d0a54);
  flex-shrink: 0;
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.06);
}

/* Overlay sobre la imagen en la tarjeta */
.blog-card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(26,5,51,0.55) 100%);
  z-index: 1;
}

/* Categoría flotante sobre la imagen */
.blog-card-img .blog-card-cat {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  z-index: 2;
  background: rgba(106,13,173,0.85);
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  backdrop-filter: blur(4px);
}

.blog-card-inner {
  padding: 1.5rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Cuando hay imagen, el card-top no muestra la cat (ya está en la imagen) */
.blog-card-img ~ .blog-card-inner .blog-card-top {
  display: none;
}

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

.blog-card-cat {
  font-weight: 600;
  font-size: 0.75rem;
  color: #6A0DAD;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(106,13,173,0.06);
  padding: 4px 10px;
  border-radius: 50px;
}

.blog-card-num {
  font-weight: 800;
  font-size: 1.4rem;
  color: rgba(0,230,208,0.25);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.blog-card-title {
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  flex: 1;
}

.blog-card-title a {
  color: #495057;
  transition: color 0.3s;
}

.blog-card-title a:hover {
  color: #6A0DAD;
}

.blog-card-excerpt {
  font-weight: 400;
  font-size: 0.9rem;
  color: #6c757d;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

.blog-card-footer {
  border-top: 1px solid rgba(0,0,0,0.05);
  padding-top: 1rem;
  margin-top: auto;
}

.blog-card-link {
  font-weight: 600;
  font-size: 0.88rem;
  color: #00E6D0;
  transition: color 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-card-link::after {
  content: '→';
  transition: transform 0.3s;
}

.blog-card-link:hover {
  color: #6A0DAD;
}

.blog-card-link:hover::after {
  transform: translateX(4px);
}

/* ==============================
   CTA FINAL
============================== */
.blog-cta {
  background: linear-gradient(135deg, #1a0533 0%, #2d0a54 100%);
  padding: 5rem 1.5rem;
  text-align: center;
}

.blog-cta-inner {
  max-width: 700px;
  margin: 0 auto;
}

.blog-cta-title {
  font-weight: 700;
  font-size: 2.2rem;
  color: #ffffff;
  margin-bottom: 1rem;
}

.blog-cta-subtitle {
  font-weight: 400;
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.blog-cta-buttons {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==============================
   RESPONSIVE BLOG
============================== */
@media (max-width: 1024px) {
  .blog-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-hero {
    padding: 4.5rem 1.25rem 3rem;
  }

  .blog-hero-title {
    font-size: 2.1rem;
  }

  .blog-hero-subtitle {
    font-size: 1rem;
  }

  .blog-filters {
    gap: 0.5rem;
  }

  .blog-filter-btn {
    font-size: 0.8rem;
    padding: 7px 14px;
  }

  .blog-main {
    padding: 3rem 0;
  }

  .blog-category-block {
    margin-bottom: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .blog-category-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.25rem;
  }

  .blog-cards-grid {
    grid-template-columns: 1fr;
  }

  .blog-category-title {
    font-size: 1.35rem;
  }

  .blog-cta-title {
    font-size: 1.75rem;
  }

  .blog-cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .blog-hero-title {
    font-size: 1.75rem;
  }

  .blog-filter-btn {
    font-size: 0.75rem;
    padding: 6px 12px;
  }
}