/* ============================================================================
   WRITINGS GRID - Sistema de cuadrícula adaptable tipo revista
   ============================================================================ */

/* === GRID CONTAINER === */
.writings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

/* Vista compacta */
.writings-grid.view-compact {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-4);
}

/* Vista de lista */
.writings-grid.view-list {
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .writings-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* === WRITING CARD === */
.writing-card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.writing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-gold);
}

/* Efecto de entrada escalonado */
.writing-card:nth-child(1) { animation-delay: 0.05s; }
.writing-card:nth-child(2) { animation-delay: 0.1s; }
.writing-card:nth-child(3) { animation-delay: 0.15s; }
.writing-card:nth-child(4) { animation-delay: 0.2s; }
.writing-card:nth-child(5) { animation-delay: 0.25s; }
.writing-card:nth-child(6) { animation-delay: 0.3s; }
.writing-card:nth-child(7) { animation-delay: 0.35s; }
.writing-card:nth-child(8) { animation-delay: 0.4s; }
.writing-card:nth-child(9) { animation-delay: 0.45s; }

/* === CARD IMAGE === */
.card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent-burgundy), var(--accent-gold));
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.writing-card:hover .card-image img {
  transform: scale(1.1);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 0, 0, 0.3) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-4);
}

.card-category {
  align-self: flex-start;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-base);
}

.card-category.poema {
  background: rgba(212, 175, 55, 0.9);
  color: #1a1a1a;
}

.card-category.relato {
  background: rgba(139, 38, 53, 0.9);
  color: white;
}

.card-category.reflexion {
  background: rgba(135, 169, 107, 0.9);
  color: white;
}

.writing-card:hover .card-category {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-badges {
  display: flex;
  gap: var(--space-2);
  align-self: flex-end;
}

.card-badge {
  padding: var(--space-2) var(--space-3);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  border-radius: var(--radius-md);
  color: white;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-badge.new {
  background: rgba(46, 204, 113, 0.9);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* === CARD CONTENT === */
.card-content {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-base);
}

.writing-card:hover .card-title {
  color: var(--accent-burgundy);
}

.card-excerpt {
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-light);
}

.card-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-burgundy), var(--accent-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-sm);
  font-weight: 700;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.author-date {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.card-stats {
  display: flex;
  gap: var(--space-4);
}

.card-stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.card-stat i {
  font-size: var(--text-base);
  transition: transform var(--transition-base);
}

.card-stat:hover {
  color: var(--accent-burgundy);
}

.card-stat:hover i {
  transform: scale(1.2);
}

/* === VISTA DE LISTA === */
.writings-grid.view-list .writing-card {
  flex-direction: row;
  max-height: 250px;
}

.writings-grid.view-list .card-image {
  width: 400px;
  aspect-ratio: 16 / 10;
  flex-shrink: 0;
}

.writings-grid.view-list .card-content {
  padding: var(--space-6);
}

.writings-grid.view-list .card-title {
  font-size: var(--text-2xl);
  -webkit-line-clamp: 1;
}

.writings-grid.view-list .card-excerpt {
  font-size: var(--text-base);
  -webkit-line-clamp: 2;
}

@media (max-width: 768px) {
  .writings-grid.view-list .writing-card {
    flex-direction: column;
    max-height: none;
  }
  
  .writings-grid.view-list .card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
  }
  
  .writings-grid.view-list .card-content {
    padding: var(--space-5);
  }
}

/* === VISTA COMPACTA === */
.writings-grid.view-compact .card-image {
  aspect-ratio: 4 / 3;
}

.writings-grid.view-compact .card-content {
  padding: var(--space-4);
}

.writings-grid.view-compact .card-title {
  font-size: var(--text-lg);
  -webkit-line-clamp: 2;
}

.writings-grid.view-compact .card-excerpt {
  font-size: var(--text-xs);
  -webkit-line-clamp: 2;
  margin-bottom: var(--space-3);
}

.writings-grid.view-compact .card-meta {
  padding-top: var(--space-3);
}

.writings-grid.view-compact .author-avatar {
  width: 28px;
  height: 28px;
  font-size: var(--text-xs);
}

.writings-grid.view-compact .card-stat {
  font-size: var(--text-xs);
}

/* === ESTADOS ESPECIALES === */
.writing-card.featured {
  grid-column: span 2;
  grid-row: span 2;
}

.writing-card.featured .card-image {
  aspect-ratio: 16 / 9;
}

.writing-card.featured .card-title {
  font-size: var(--text-3xl);
  -webkit-line-clamp: 2;
}

.writing-card.featured .card-excerpt {
  font-size: var(--text-base);
  -webkit-line-clamp: 4;
}

@media (max-width: 1024px) {
  .writing-card.featured {
    grid-column: span 1;
    grid-row: span 1;
  }
  
  .writing-card.featured .card-title {
    font-size: var(--text-xl);
  }
  
  .writing-card.featured .card-excerpt {
    font-size: var(--text-sm);
    -webkit-line-clamp: 3;
  }
}

/* === EMPTY STATE === */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-6);
  text-align: center;
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  border: 2px dashed var(--border-color);
}

.empty-state i {
  font-size: 5rem;
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
  opacity: 0.5;
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.empty-state p {
  font-family: var(--font-sans);
  color: var(--text-tertiary);
  font-size: var(--text-base);
}

/* === CARD SKELETON (Loading) === */
.card-skeleton {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 0%,
    var(--border-light) 50%,
    var(--bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-content {
  padding: var(--space-5);
}

.skeleton-title {
  height: 24px;
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 0%,
    var(--border-light) 50%,
    var(--bg-secondary) 100%
  );
  background-size: 200% 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  animation: shimmer 1.5s infinite;
}

.skeleton-text {
  height: 16px;
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 0%,
    var(--border-light) 50%,
    var(--bg-secondary) 100%
  );
  background-size: 200% 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  animation: shimmer 1.5s infinite;
}

.skeleton-text:last-child {
  width: 60%;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* === FILTROS MÓVILES === */
@media (max-width: 768px) {
  .mobile-filters {
    position: fixed;
    bottom: 80px;
    right: var(--space-4);
    z-index: 100;
  }
  
  .mobile-filter-fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-burgundy), var(--accent-gold));
    color: white;
    border: none;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    cursor: pointer;
    transition: all var(--transition-base);
  }
  
  .mobile-filter-fab:active {
    transform: scale(0.95);
  }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .writings-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-6);
  }
}

@media (max-width: 640px) {
  .writings-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  
  .card-content {
    padding: var(--space-4);
  }
  
  .card-title {
    font-size: var(--text-lg);
  }
  
  .card-excerpt {
    font-size: var(--text-xs);
  }
}