/* /css/articles.css */

/* Import variables from main style.css - no need to redefine */
:root {
    --light-grey: #f2f2f2;
    --text-color: #333;
    --muted-color: #555;
  }
  
  /* Page header / search bar - Modern theme matching homepage */
  .articles-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    padding: var(--space-16) 0;
    border-bottom: 1px solid var(--gray-100);
  }
  .articles-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
  }
  .articles-header h1 {
    font-family: var(--font-sans);
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0 0 var(--space-8) 0;
    color: var(--gray-900);
    text-align: center;
    letter-spacing: -0.025em;
  }
  
  /* Search controls container - Modern design */
  .search-controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  #article-search {
    width: 100%;
    max-width: 600px;
    padding: var(--space-4) var(--space-5);
    font-size: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    outline: none;
    background: var(--white);
    font-family: var(--font-sans);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
  }
  #article-search:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), var(--shadow-md) !important;
    transform: translateY(-1px) !important;
  }
  
  #article-search::placeholder {
    color: var(--gray-500);
  }
  
  /* Sort controls - Modern design */
  .sort-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.9rem;
    background: var(--white);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
  }
  
  .sort-controls label {
    color: var(--gray-700);
    font-weight: 600;
    font-family: var(--font-sans);
  }
  
  #sort-select {
    padding: var(--space-2) var(--space-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    background: var(--white);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: var(--transition);
    min-width: 160px;
  }
  
  #sort-select:focus {
    border-color: var(--primary-color) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1) !important;
  }
  
  /* Responsive search controls */
  @media (min-width: 600px) {
    .search-controls {
      flex-direction: row;
      justify-content: space-between;
    }
    
    #article-search {
      flex: 1;
      margin-right: 1rem;
    }
  }
  
  /* Main articles grid - updated to match homepage */
  .articles-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
  }
  #articles-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
  }
  
  .article-excerpt {
    flex-grow: 1;
    margin: 0 0 1rem 0;
    color: var(--muted-color);
    line-height: 1.5;
    font-size: 0.95rem;
  }
  
  /* Article metadata */
  .article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--muted-color);
    border-top: 1px solid #eee;
    padding-top: 0.75rem;
    margin-top: auto;
    justify-content: space-between;
  }
  
  .article-meta-left {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
  }
  
  .article-meta-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .article-author {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.8rem;
  }
  
  .article-date {
    font-style: italic;
    font-size: 0.75rem;
    opacity: 0.8;
  }
  
  .article-category {
    background: var(--light-grey);
    padding: 0.2rem 0.4rem;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
  }
  
  /* Compact upvote button for articles page */
  .article-meta .upvote-container {
    margin: 0;
  }
  
  .article-meta .upvote-btn {
    width: 28px;
    height: 28px;
    font-size: 12px;
    border-width: 1px;
  }
  
  .article-meta .upvote-count {
    font-size: 0.75rem;
    font-weight: 600;
  }
  
  /* Responsive article meta */
  @media (max-width: 480px) {
    .article-meta {
      flex-direction: column;
      align-items: flex-start;
      gap: 0.5rem;
    }
    
    .article-meta-left {
      width: 100%;
      justify-content: space-between;
    }
    
    .article-meta-right {
      width: 100%;
      justify-content: flex-end;
    }
    
    .article-category {
      order: -1;
    }
  }
  
  /* Placeholder skeletons */
  .article-card.placeholder {
    min-height: 300px;
    background: #eaeaea;
    border-radius: 8px;
    animation: pulse 1.5s infinite ease-in-out;
  }
  @keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
  }
  
  /* Load-more trigger (invisible) */
  #load-more-trigger {
    height: 1px;
  }
  
  /* End of list message */
  .articles-page p {
    text-align: center;
    width: 100%;
    grid-column: 1 / -1;
    color: var(--muted-color);
    margin: 2rem 0;
  }
  
  /* Scroll-to-top button */
  #scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    z-index: 100;
  }
  #scroll-top-btn:hover {
    background: darken(var(--primary-color), 10%);
  }

  /* Like button pending state */
  .like-btn.pending {
    position: relative;
    opacity: 0.8;
  }

  .like-btn.pending::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: #f59e0b;
    border-radius: 50%;
    border: 2px solid white;
    animation: pendingPulse 2s infinite;
  }

  @keyframes pendingPulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
  }

  /* Sync toast notifications */
  .sync-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    font-family: var(--font-sans);
    font-weight: 500;
  }

  .sync-toast.success {
    border-left: 4px solid #10b981;
  }

  .sync-toast i {
    color: #10b981;
    font-size: 1.2rem;
  }

  @keyframes slideIn {
    from {
      transform: translateX(100%);
      opacity: 0;
    }
    to {
      transform: translateX(0);
      opacity: 1;
    }
  }

  /* Error state */
  .error-state {
    text-align: center;
    padding: var(--space-16);
    color: var(--gray-600);
  }

  .error-state i {
    font-size: 3rem;
    color: var(--gray-400);
    margin-bottom: var(--space-4);
  }

  .error-state h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
    color: var(--gray-700);
  }

  .error-state p {
    margin-bottom: var(--space-6);
  }

  .retry-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--border-radius);
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
  }

  .retry-btn:hover {
    background: var(--primary-color-dark);
    transform: translateY(-1px);
  }

  /* Card actions for articles page */
  .card-actions {
    position: absolute;
    bottom: var(--space-4);
    right: var(--space-4);
    z-index: 10;
    opacity: 0;
    transition: var(--transition);
  }

  .card:hover .card-actions {
    opacity: 1;
  }

  .card-actions .like-btn {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
  }

  .card-actions .like-btn:hover {
    background: var(--white);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }

  .card-actions .like-btn.liked {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
  }

  .card-actions .like-btn.liked:hover {
    background: var(--primary-color-dark);
    border-color: var(--primary-color-dark);
  }

  .card-actions .like-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--gray-100);
    color: var(--gray-400);
  }

  .card-actions .like-btn:disabled:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }

  /* Responsive grid */
  @media (max-width: 768px) {
    #articles-list {
      grid-template-columns: 1fr;
      gap: var(--space-6);
    }
  }

  @media (max-width: 480px) {
    .articles-page {
      padding: var(--space-6) var(--space-4);
    }
    
    #articles-list {
      gap: var(--space-4);
    }
  }