/* ===============================
   🎯 BLOG MAIN - INAB CONSULTING
   =============================== */

/* Variables específicas del blog */
:root {
  --blog-primary: var(--primary, #2B7B31);
  --blog-primary-dark: var(--primary-dark, #1f5923);
  --blog-primary-light: var(--primary-light, #4CAF50);
  --blog-secondary: var(--text-secondary, #666666);
  --blog-accent: var(--success, #28a745);
  --blog-success: var(--success, #28a745);
  --blog-warning: var(--warning, #ffc107);
  --blog-danger: var(--error, #dc3545);
  
  --blog-bg: var(--bg-primary, #ffffff);
  --blog-bg-alt: var(--bg-secondary, #f8f9fa);
  --blog-text: var(--text-primary, #333333);
  --blog-text-light: var(--text-secondary, #666666);
  --blog-border: var(--gray-300, #dee2e6);
  
  --blog-card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --blog-card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  --blog-radius: 8px;
  --blog-radius-lg: 12px;
  --blog-spacing: 1rem;
  --blog-spacing-lg: 2rem;
}

/* Layout general del blog */
.blog-main {
  min-height: 100vh;
  padding-top: var(--header-height, 100px); /* Usar la altura del header principal */
  background: var(--blog-bg);
  color: var(--blog-text);
}

/* ===============================
   🎨 HERO SECTION
   =============================== */
.blog-hero {
  background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-dark) 100%);
  color: white;
  padding: var(--blog-spacing-lg) 0;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.blog-hero__content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.blog-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #ffffff, #e2e8f0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-hero__subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem);
  margin-bottom: var(--blog-spacing-lg);
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.blog-hero__stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===============================
   🔍 FILTROS Y BÚSQUEDA
   =============================== */
.blog-filters {
  background: var(--blog-bg);
  border-bottom: 1px solid var(--blog-border);
  padding: var(--blog-spacing) 0;
  position: sticky;
  top: 80px;
  z-index: 100;
}

.filters-wrapper {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--blog-spacing);
  align-items: center;
}

/* Search Container */
.search-container {
  position: relative;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 2px solid var(--blog-border);
  border-radius: var(--blog-radius);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  background: var(--blog-bg);
}

.search-input:focus {
  outline: none;
  border-color: var(--blog-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--blog-text-light);
  pointer-events: none;
  z-index: 2;
}

.search-clear {
  position: absolute;
  right: 0.5rem;
  background: none;
  border: none;
  color: var(--blog-text-light);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.search-clear:hover {
  background: var(--blog-bg-alt);
  color: var(--blog-text);
}

.search-clear.hidden {
  display: none;
}

/* Category Filters */
.category-filters {
  display: flex;
  gap: var(--blog-spacing);
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--blog-text);
  white-space: nowrap;
}

.filter-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  background: var(--blog-bg);
  font-size: 0.875rem;
  min-width: 120px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-select:focus {
  outline: none;
  border-color: var(--blog-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* View Toggle */
.view-toggle {
  display: flex;
  gap: 0.25rem;
  background: var(--blog-bg-alt);
  padding: 0.25rem;
  border-radius: var(--blog-radius);
}

.view-btn {
  padding: 0.5rem;
  background: none;
  border: none;
  border-radius: calc(var(--blog-radius) - 2px);
  cursor: pointer;
  color: var(--blog-text-light);
  transition: all 0.2s ease;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.view-btn:hover {
  color: var(--blog-text);
}

.view-btn.active {
  background: var(--blog-primary);
  color: white;
}

/* ===============================
   ⭐ POSTS DESTACADOS
   =============================== */
.featured-posts {
  padding: var(--blog-spacing-lg) 0;
  background: var(--blog-bg-alt);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--blog-spacing-lg);
  margin-top: var(--blog-spacing-lg);
}

/* ===============================
   📖 TODOS LOS POSTS
   =============================== */
.all-posts {
  padding: var(--blog-spacing-lg) 0;
}

.posts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--blog-spacing-lg);
  flex-wrap: wrap;
  gap: var(--blog-spacing);
}

.posts-count {
  font-size: 0.875rem;
  color: var(--blog-text-light);
}

/* Posts Container */
.posts-container {
  display: grid;
  gap: var(--blog-spacing-lg);
  margin-bottom: var(--blog-spacing-lg);
}

/* Grid View */
.posts-container.grid-view {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* List View */
.posts-container.list-view {
  grid-template-columns: 1fr;
}

/* ===============================
   🃏 TARJETAS DE POST
   =============================== */
.post-card {
  background: var(--blog-bg);
  border-radius: var(--blog-radius-lg);
  overflow: hidden;
  box-shadow: var(--blog-card-shadow);
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--blog-card-shadow-hover);
}

.post-card__image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.post-card:hover .post-card__image img {
  transform: scale(1.05);
}

.post-card__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--blog-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.post-card__content {
  padding: var(--blog-spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--blog-text-light);
}

.post-card__date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.post-card__category {
  color: var(--blog-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.post-card__category:hover {
  color: var(--blog-primary);
  text-decoration: underline;
}

.post-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--blog-text);
}

.post-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.post-card__excerpt {
  flex: 1;
  color: var(--blog-text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

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

.post-card__author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--blog-text-light);
}

.post-card__stats {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--blog-text-light);
}

.post-card__stats span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Featured Post Card */
.post-card.featured {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--blog-primary), #1e40af);
  color: white;
}

.post-card.featured .post-card__badge {
  background: var(--blog-accent);
}

.post-card.featured .post-card__title,
.post-card.featured .post-card__excerpt {
  color: white;
}

.post-card.featured .post-card__meta,
.post-card.featured .post-card__author,
.post-card.featured .post-card__stats {
  color: rgba(255, 255, 255, 0.8);
}

.post-card.featured .post-card__footer {
  border-top-color: rgba(255, 255, 255, 0.2);
}

/* List View Card */
.posts-container.list-view .post-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--blog-spacing-lg);
  align-items: center;
}

.posts-container.list-view .post-card__image {
  aspect-ratio: 1;
}

.posts-container.list-view .post-card__content {
  padding: var(--blog-spacing);
}

/* ===============================
   🔄 LOAD MORE & NO RESULTS
   =============================== */
.load-more-container {
  text-align: center;
  margin-top: var(--blog-spacing-lg);
}

.load-more-btn {
  padding: 0.75rem 2rem;
  background: var(--blog-primary);
  color: white;
  border: none;
  border-radius: var(--blog-radius);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.load-more-btn:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}

.load-more-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.no-results {
  text-align: center;
  padding: 4rem 2rem;
}

.no-results.hidden {
  display: none;
}

.no-results__icon {
  font-size: 3rem;
  color: var(--blog-text-light);
  margin-bottom: 1rem;
}

.no-results__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--blog-text);
  margin-bottom: 0.5rem;
}

.no-results__text {
  color: var(--blog-text-light);
  margin-bottom: 2rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ===============================
   📧 NEWSLETTER
   =============================== */
.newsletter-section {
  background: var(--blog-bg-alt);
  padding: var(--blog-spacing-lg) 0;
}

.newsletter-card {
  background: var(--blog-bg);
  border-radius: var(--blog-radius-lg);
  padding: var(--blog-spacing-lg);
  box-shadow: var(--blog-card-shadow);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--blog-text);
  margin-bottom: 0.5rem;
}

.newsletter-text {
  color: var(--blog-text-light);
  margin-bottom: var(--blog-spacing-lg);
}

.newsletter-form .form-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.newsletter-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 2px solid var(--blog-border);
  border-radius: var(--blog-radius);
  font-size: 0.875rem;
}

.newsletter-input:focus {
  outline: none;
  border-color: var(--blog-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.newsletter-btn {
  padding: 0.75rem 1.5rem;
  background: var(--blog-primary);
  color: white;
  border: none;
  border-radius: var(--blog-radius);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.newsletter-btn:hover {
  background: #1d4ed8;
}

.newsletter-disclaimer {
  font-size: 0.75rem;
  color: var(--blog-text-light);
  margin: 0;
}

/* ===============================
   ⚡ LOADING
   =============================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  text-align: center;
  color: var(--blog-primary);
}

.loading-spinner i {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.loading-spinner p {
  margin: 0;
  color: var(--blog-text-light);
}

/* ===============================
   🎯 UTILIDADES GENERALES
   =============================== */

/* Clase para ocultar elementos */
.hidden {
  display: none !important;
}

/* Clase para elementos visibles */
.visible {
  display: block;
}

/* Clase para transiciones suaves */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.3s ease-in-out forwards;
}

.fade-out {
  opacity: 1;
  animation: fadeOut 0.3s ease-in-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ===============================
   📱 RESPONSIVE
   =============================== */
@media (max-width: 1024px) {
  .post-card.featured {
    grid-column: span 1;
  }
  
  .featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .blog-hero {
    padding: var(--blog-spacing) 0;
  }
  
  .blog-hero__stats {
    gap: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .filters-wrapper {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .category-filters {
    justify-content: center;
  }
  
  .view-toggle {
    justify-self: center;
  }
  
  .posts-header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .posts-container.grid-view {
    grid-template-columns: 1fr;
  }
  
  .posts-container.list-view .post-card {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form .form-group {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .blog-main {
    padding-top: 80px;
  }
  
  .blog-filters {
    top: 60px;
  }
  
  .search-input {
    font-size: 16px; /* Evita zoom en iOS */
  }
  
  .post-card__content {
    padding: var(--blog-spacing);
  }
  
  .newsletter-card {
    padding: var(--blog-spacing);
  }
}

/* ===============================
   🌙 MODO OSCURO
   =============================== */
[data-theme="dark"] {
  --blog-bg: #1f2937;
  --blog-bg-alt: #111827;
  --blog-text: #f9fafb;
  --blog-text-light: #d1d5db;
  --blog-border: #374151;
}

[data-theme="dark"] .blog-hero {
  background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
}

[data-theme="dark"] .search-input,
[data-theme="dark"] .filter-select,
[data-theme="dark"] .newsletter-input {
  background: var(--blog-bg);
  color: var(--blog-text);
  border-color: var(--blog-border);
}

[data-theme="dark"] .search-input:focus,
[data-theme="dark"] .filter-select:focus,
[data-theme="dark"] .newsletter-input:focus {
  border-color: var(--blog-primary);
}

[data-theme="dark"] .post-card {
  background: var(--blog-bg);
  border: 1px solid var(--blog-border);
}

[data-theme="dark"] .loading-overlay {
  background: rgba(31, 41, 55, 0.9);
}