/* Forum Details CSS - Modern Design with IDtop Branding */
/* ===================================================== */

/* CSS Variables for Consistency */
:root {
    /* Forum-specific colors */
    --forum-primary: #6366f1;
    --forum-secondary: #8b5cf6;
    --forum-accent: #f59e0b;
    --forum-success: #22c55e;
    --forum-warning: #f59e0b;
    --forum-danger: #ef4444;
    --forum-info: #3b82f6;
    
    /* Background gradients */
    --forum-hero-gradient: linear-gradient(135deg, var(--forum-primary) 0%, var(--forum-secondary) 100%);
    --forum-card-gradient: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    
    /* Shadows */
    --forum-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --forum-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --forum-shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
    --forum-shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);
    
    /* Animation timing */
    --forum-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --forum-transition-fast: 0.15s ease;
    --forum-transition-slow: 0.5s ease;
  }
  
  /* Reading Progress Bar */
  .reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--forum-hero-gradient);
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
  }
  
  /* Breadcrumb Navigation */
  .breadcrumb-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    z-index: 1020;
  }
  
  .breadcrumb {
    margin: 0;
    background: transparent;
    font-size: var(--text-sm);
  }
  
  .breadcrumb-item {
    display: flex;
    align-items: center;
  }
  
  .breadcrumb-item a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    transition: all var(--forum-transition-fast);
  }
  
  .breadcrumb-item a:hover {
    color: var(--forum-primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
  }
  
  .breadcrumb-item.active {
    color: var(--forum-primary);
    font-weight: 600;
  }
  
  /* Topic Hero Section */
  .topic-hero {
    position: relative;
    background: var(--forum-hero-gradient);
    color: white;
    padding: var(--space-20) 0 var(--space-16);
    overflow: hidden;
    min-height: 50vh;
    display: flex;
    align-items: center;
  }
  
  .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
  }
  
  .hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
      radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: heroFloat 8s ease-in-out infinite alternate;
  }
  
  .hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    animation: heroGlow 6s ease-in-out infinite alternate;
  }
  
  @keyframes heroFloat {
    0% { transform: translateY(0px) scale(1); }
    100% { transform: translateY(-10px) scale(1.02); }
  }
  
  @keyframes heroGlow {
    0% { opacity: 0.3; }
    100% { opacity: 0.6; }
  }
  
  .topic-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
  }
  
  /* Topic Badges */
  .topic-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
  }
  
  .topic-type-badge,
  .topic-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: badgeFloat 3s ease-in-out infinite alternate;
  }
  
  .review-badge {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
  }
  
  .discussion-badge {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  }
  
  .new-badge {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
  }
  
  .trending-badge {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
  }
  
  @keyframes badgeFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-3px); }
  }
  
  /* Topic Title */
  .topic-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  /* Rating Display */
  .topic-rating-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-3xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .rating-stars-large {
    display: flex;
    gap: var(--space-2);
  }
  
  .rating-stars-large i {
    font-size: 2rem;
    color: #fbbf24;
    filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.5));
  }
  
  .rating-text-large {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: white;
  }
  
  .rating-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
  
  /* Author Section */
  .topic-author-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    flex-wrap: wrap;
  }
  
  .author-avatar-container {
    position: relative;
  }
  
  .author-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--forum-shadow-xl);
    transition: all var(--forum-transition);
  }
  
  .author-avatar-large:hover {
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
  }
  
  .author-status-ring {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--forum-success);
    border: 3px solid white;
    animation: statusPulse 2s infinite;
  }
  
  @keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
  }
  
  .author-info-hero {
    text-align: center;
  }
  
  .author-name {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
    color: white;
  }
  
  .author-title {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .topic-meta-hero {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
  }
  
  .meta-item i {
    color: var(--forum-accent);
  }
  
  /* Main Layout */
  .topic-main-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--space-8);
    margin-top: var(--space-8);
    margin-bottom: var(--space-12);
  }
  
  @media (max-width: 991.98px) {
    .topic-main-layout {
      grid-template-columns: 1fr;
      gap: var(--space-6);
    }
  }
  
  /* Topic Content */
  .topic-content-container {
    background: white;
    border-radius: var(--radius-3xl);
    box-shadow: var(--forum-shadow-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  /* Product Showcase */
  .topic-product-showcase {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-8);
    background: var(--forum-card-gradient);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
  }
  
  .topic-product-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    z-index: 1;
  }
  
  .product-image-container {
    position: relative;
    z-index: 2;
  }
  
  .product-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--forum-shadow-lg);
    transition: all var(--forum-transition);
  }
  
  .product-image:hover {
    transform: scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .product-verified-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--forum-success);
    color: white;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    box-shadow: var(--forum-shadow-md);
  }
  
  .product-info-container {
    flex: 1;
    position: relative;
    z-index: 2;
  }
  
  .product-label {
    font-size: var(--text-xs);
    color: var(--forum-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: var(--space-2);
  }
  
  .product-name {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
  }
  
  .product-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-4);
  }
  
  .product-link-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--forum-hero-gradient);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    transition: all var(--forum-transition);
    box-shadow: var(--forum-shadow-md);
  }
  
  .product-link-btn:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-lg);
  }
  
  /* Content Body */
  .topic-content-main {
    padding: var(--space-8);
  }
  
  .content-body {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: var(--space-8);
  }
  
  .content-body h1,
  .content-body h2,
  .content-body h3,
  .content-body h4,
  .content-body h5,
  .content-body h6 {
    color: var(--gray-900);
    margin-top: var(--space-8);
    margin-bottom: var(--space-4);
  }
  
  .content-body p {
    margin-bottom: var(--space-6);
  }
  
  .content-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--forum-shadow-md);
    margin: var(--space-6) 0;
  }
  
  .content-body blockquote {
    background: rgba(99, 102, 241, 0.05);
    border-left: 4px solid var(--forum-primary);
    padding: var(--space-6);
    margin: var(--space-6) 0;
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
    font-style: italic;
  }
  
  /* Topic Actions */
  .topic-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    background: var(--gray-50);
    border-radius: var(--radius-2xl);
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  
  .action-group {
    display: flex;
    gap: var(--space-3);
  }
  
  .action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: white;
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    font-weight: 600;
    color: var(--gray-700);
    transition: all var(--forum-transition);
    cursor: pointer;
    box-shadow: var(--forum-shadow-sm);
  }
  
  .action-btn:hover {
    color: var(--forum-primary);
    border-color: rgba(99, 102, 241, 0.2);
    background: rgba(99, 102, 241, 0.05);
    transform: translateY(-1px);
    box-shadow: var(--forum-shadow-md);
  }
  
  .action-btn.active {
    color: var(--forum-primary);
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--forum-primary);
  }
  
  .reply-cta-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: var(--forum-hero-gradient);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 700;
    transition: all var(--forum-transition);
    box-shadow: var(--forum-shadow-md);
  }
  
  .reply-cta-btn:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-lg);
  }
  
  /* Topic Stats */
  .topic-stats-card {
    margin: var(--space-8);
    padding: var(--space-6);
    background: var(--forum-card-gradient);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-6);
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-align: left;
  }
  
  .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    background: var(--forum-hero-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-lg);
    box-shadow: var(--forum-shadow-md);
  }
  
  .stat-number {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--gray-900);
    display: block;
  }
  
  .stat-label {
    font-size: var(--text-sm);
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  /* Sidebar */
  .topic-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .sidebar-card {
    background: white;
    border-radius: var(--radius-3xl);
    box-shadow: var(--forum-shadow-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--forum-transition);
  }
  
  .sidebar-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .card-header {
    padding: var(--space-6);
    background: var(--forum-card-gradient);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .card-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
  }
  
  .card-title i {
    color: var(--forum-primary);
    font-size: var(--text-xl);
  }
  
  .card-content {
    padding: var(--space-6);
  }
  
  /* Author Card */
  .author-profile {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }
  
  .author-avatar-sidebar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    border: 3px solid rgba(99, 102, 241, 0.2);
    box-shadow: var(--forum-shadow-md);
  }
  
  .author-details {
    flex: 1;
  }
  
  .author-name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
  }
  
  .author-status {
    font-size: var(--text-sm);
    color: var(--forum-primary);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
  }
  
  .author-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .author-stat {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--gray-600);
  }
  
  .author-stat i {
    color: var(--forum-accent);
  }
  
  /* Quick Actions */
  .quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .quick-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--forum-transition);
    border: 2px solid transparent;
    cursor: pointer;
    background: white;
  }
  
  .quick-action-btn.primary {
    background: var(--forum-hero-gradient);
    color: white;
    box-shadow: var(--forum-shadow-md);
  }
  
  .quick-action-btn.primary:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-lg);
  }
  
  .quick-action-btn.secondary {
    background: rgba(139, 92, 246, 0.1);
    color: var(--forum-secondary);
    border-color: transparent;
  }
  
  .quick-action-btn.secondary:hover {
    background: rgba(139, 92, 246, 0.2);
    color: var(--forum-secondary);
    transform: translateY(-1px);
  }
  
  .quick-action-btn.outline {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
  }
  
  .quick-action-btn.outline:hover {
    background: var(--gray-50);
    color: var(--gray-900);
    border-color: var(--gray-400);
  }
  
  /* Related Topics */
  .related-topics-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .related-topic-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--forum-transition);
  }
  
  .related-topic-item:hover {
    background: rgba(99, 102, 241, 0.05);
    transform: translateX(4px);
  }
  
  .related-topic-type {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--forum-shadow-sm);
  }
  
  .related-topic-content {
    flex: 1;
    min-width: 0;
  }
  
  .related-topic-title a {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-900);
    text-decoration: none;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .related-topic-title a:hover {
    color: var(--forum-primary);
  }
  
  .related-topic-meta {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-2);
    font-size: var(--text-xs);
    color: var(--gray-500);
  }
  
  .no-related-topics {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    color: var(--gray-500);
  }
  
  .no-related-topics i {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    color: var(--gray-400);
  }
  
  .no-related-topics .btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    color: var(--forum-primary);
    text-decoration: none;
    font-weight: 600;
  }
  
  /* Replies Section */
  .replies-section {
    margin-top: var(--space-16);
    margin-bottom: var(--space-12);
  }
  
  .replies-header {
    text-align: center;
    margin-bottom: var(--space-8);
  }
  
  .replies-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
  }
  
  .replies-title i {
    color: var(--forum-accent);
  }
  
  .replies-subtitle {
    font-size: var(--text-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
  }
  
  /* Reply Cards */
  .replies-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .reply-card {
    background: white;
    border-radius: var(--radius-3xl);
    padding: var(--space-8);
    box-shadow: var(--forum-shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--forum-transition);
  }
  
  .reply-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .reply-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-6);
  }
  
  .reply-author {
    display: flex;
    gap: var(--space-4);
  }
  
  .reply-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    border: 2px solid rgba(99, 102, 241, 0.2);
    box-shadow: var(--forum-shadow-sm);
  }
  
  .reply-author-info {
    flex: 1;
  }
  
  .reply-author-name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
  }
  
  .reply-meta {
    display: flex;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--gray-500);
  }
  
  .reply-time {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
  
  .reply-actions {
    display: flex;
    gap: var(--space-2);
  }
  
  .reply-action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    color: var(--gray-600);
    font-size: var(--text-sm);
    transition: all var(--forum-transition-fast);
    cursor: pointer;
  }
  
  .reply-action-btn:hover {
    color: var(--forum-primary);
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.2);
  }
  
  .reply-content {
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--gray-700);
  }
  
  .reply-content p {
    margin-bottom: var(--space-4);
  }
  
  .reply-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--space-4) 0;
  }
  
  /* No Replies Section */
  .no-replies-section {
    margin-top: var(--space-16);
    margin-bottom: var(--space-12);
  }
  
  .no-replies-container {
    text-align: center;
    padding: var(--space-16) var(--space-8);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-radius: var(--radius-3xl);
    border: 2px dashed rgba(99, 102, 241, 0.2);
  }
  
  .no-replies-illustration {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-6);
    background: var(--forum-hero-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    box-shadow: var(--forum-shadow-xl);
    animation: illustrationFloat 3s ease-in-out infinite alternate;
  }
  
  @keyframes illustrationFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-10px); }
  }
  
  .no-replies-title {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
  }
  
  .no-replies-text {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto var(--space-8);
  }
  
  .no-replies-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: var(--forum-hero-gradient);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: var(--text-lg);
    transition: all var(--forum-transition);
    box-shadow: var(--forum-shadow-lg);
  }
  
  .no-replies-cta:hover {
    color: white;
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  /* Reply Form Section */
  .reply-form-section {
    margin-top: var(--space-16);
    margin-bottom: var(--space-16);
  }
  
  .reply-form-container {
    background: white;
    border-radius: var(--radius-3xl);
    padding: var(--space-10);
    box-shadow: var(--forum-shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
  }
  
  .reply-form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--forum-hero-gradient);
  }
  
  .reply-form-header {
    text-align: center;
    margin-bottom: var(--space-8);
  }
  
  .form-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
  }
  
  .form-title i {
    color: var(--forum-accent);
    font-size: var(--text-3xl);
  }
  
  .form-subtitle {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
  }
  
  /* Form Styles */
  .reply-form {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .form-group {
    margin-bottom: var(--space-6);
  }
  
  .form-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
  }
  
  .form-label i {
    color: var(--forum-primary);
  }
  
  .required {
    color: var(--forum-danger);
    margin-left: var(--space-1);
  }
  
  .form-control {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    line-height: 1.6;
    transition: all var(--forum-transition);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    resize: vertical;
    min-height: 120px;
  }
  
  .form-control:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
    background: white;
  }
  
  .form-control.is-invalid {
    border-color: var(--forum-danger);
    box-shadow: 0 0 0 0.2rem rgba(239, 68, 68, 0.25);
  }
  
  .invalid-feedback,
  .form-error {
    display: block;
    color: var(--forum-danger);
    font-size: var(--text-sm);
    margin-top: var(--space-2);
    padding-left: var(--space-4);
  }
  
  .form-help {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
  }
  
  .help-text {
    color: var(--gray-500);
  }
  
  .char-count {
    color: var(--gray-600);
    font-weight: 600;
  }
  
  .char-count.warning {
    color: var(--forum-warning);
  }
  
  .char-count.error {
    color: var(--forum-danger);
  }
  
  /* Captcha */
  .captcha-group {
    margin-bottom: var(--space-8);
  }
  
  .captcha-container {
    display: flex;
    justify-content: center;
    margin-top: var(--space-3);
    padding: var(--space-4);
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.1);
  }
  
  /* Form Actions */
  .form-actions {
    text-align: center;
    margin-top: var(--space-8);
  }
  
  .submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: var(--forum-hero-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--text-lg);
    font-weight: 700;
    transition: all var(--forum-transition);
    cursor: pointer;
    min-width: 200px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--forum-shadow-lg);
  }
  
  .submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--forum-transition);
  }
  
  .submit-btn:hover::before {
    left: 100%;
  }
  
  .submit-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
  }
  
  .btn-loading {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
  
  .loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
  }
  
  @keyframes spin {
    to { transform: rotate(360deg); }
  }
  
  /* Back to Top */
  .back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: var(--forum-hero-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--text-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--forum-transition);
    z-index: 1000;
    box-shadow: var(--forum-shadow-lg);
  }
  
  .back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .back-to-top:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--forum-shadow-xl);
  }
  
  /* Share Modal */
  .modern-modal .modal-content {
    border: none;
    border-radius: var(--radius-3xl);
    box-shadow: var(--forum-shadow-xl);
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .modern-modal .modal-header {
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
  }
  
  .modern-modal .modal-title {
    color: var(--gray-900);
    font-weight: 700;
  }
  
  .modern-modal .modal-body {
    padding: var(--space-6);
  }
  
  .share-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-4);
  }
  
  .share-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-6) var(--space-4);
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--forum-transition);
    border: 2px solid transparent;
  }
  
  .share-option:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--forum-primary);
    transform: translateY(-2px);
  }
  
  .share-option i {
    font-size: var(--text-2xl);
    color: var(--forum-primary);
  }
  
  .share-option span {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-700);
  }
  
  /* Responsive Design */
  @media (max-width: 991.98px) {
    .topic-hero {
      padding: var(--space-16) 0 var(--space-12);
      min-height: auto;
    }
    
    .topic-title {
      font-size: var(--text-4xl);
    }
    
    .topic-author-hero {
      flex-direction: column;
      text-align: center;
    }
    
    .topic-meta-hero {
      justify-content: center;
    }
    
    .topic-product-showcase {
      flex-direction: column;
      text-align: center;
    }
    
    .topic-actions {
      flex-direction: column;
      align-items: stretch;
    }
    
    .action-group {
      justify-content: center;
    }
    
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 767.98px) {
    .topic-hero {
      padding: var(--space-12) 0 var(--space-8);
    }
    
    .topic-title {
      font-size: var(--text-3xl);
    }
    
    .topic-badges {
      flex-direction: column;
      align-items: center;
    }
    
    .topic-content-main,
    .card-content,
    .reply-form-container {
      padding: var(--space-6);
    }
    
    .reply-card {
      padding: var(--space-6);
    }
    
    .replies-title {
      font-size: var(--text-2xl);
      flex-direction: column;
    }
    
    .stats-grid {
      grid-template-columns: 1fr;
    }
    
    .back-to-top {
      bottom: 100px;
      right: 20px;
      width: 48px;
      height: 48px;
    }
    
    .meta-item {
      font-size: var(--text-xs);
      padding: var(--space-1) var(--space-2);
    }
    
    .author-profile {
      flex-direction: column;
      text-align: center;
    }
    
    .reply-header {
      flex-direction: column;
      align-items: flex-start;
      gap: var(--space-4);
    }
    
    .share-options {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 575.98px) {
    .topic-hero {
      padding: var(--space-8) 0;
    }
    
    .topic-title {
      font-size: var(--text-2xl);
    }
    
    .no-replies-container {
      padding: var(--space-8) var(--space-4);
    }
    
    .no-replies-illustration {
      width: 80px;
      height: 80px;
      font-size: 2rem;
    }
    
    .reply-form-container {
      padding: var(--space-6) var(--space-4);
    }
    
    .submit-btn {
      width: 100%;
      padding: var(--space-4) var(--space-6);
    }
  }
  
  /* Animation Classes */
  .fade-in {
    animation: fadeIn 0.6s ease-out;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .slide-up {
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  @keyframes slideUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .scale-in {
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  @keyframes scaleIn {
    from {
      opacity: 0;
      transform: scale(0.9);
    }
    to {
      opacity: 1;
      transform: scale(1);
    }
  }
  
  /* Focus and Accessibility */
  .form-control:focus,
  .action-btn:focus,
  .reply-action-btn:focus,
  .submit-btn:focus {
    outline: 2px solid var(--forum-primary);
    outline-offset: 2px;
  }
  
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  
  /* Dark mode support */
  @media (prefers-color-scheme: dark) {
    .sidebar-card,
    .topic-content-container,
    .reply-card,
    .reply-form-container {
      background: rgba(31, 41, 55, 0.95);
      color: var(--gray-200);
    }
    
    .topic-title,
    .card-title,
    .author-name,
    .reply-author-name {
      color: var(--gray-100);
    }
  }
  
  /* Print styles */
  @media print {
    .topic-hero,
    .topic-sidebar,
    .reply-form-section,
    .back-to-top,
    .topic-actions {
      display: none !important;
    }
    
    .topic-content-container {
      box-shadow: none;
      border: 1px solid var(--gray-300);
    }
    
    .content-body {
      color: var(--black);
    }
  }

  /* Forum Details - Advanced Responsive & Interactive Enhancements */
/* ================================================================ */

/* Enhanced Mobile Navigation Adjustments */
@media (max-width: 991.98px) {
    /* Ensure mobile bottom nav doesn't interfere */
    .topic-content-container,
    .reply-form-section {
      margin-bottom: 120px;
    }
    
    /* Optimize breadcrumb for mobile */
    .breadcrumb-nav {
      padding: var(--space-2) 0;
    }
    
    .breadcrumb-item a {
      padding: var(--space-1) var(--space-2);
      font-size: var(--text-xs);
    }
    
    .breadcrumb-item a span {
      display: none;
    }
    
    .breadcrumb-item a i {
      margin: 0;
    }
    
    .breadcrumb-item.active {
      font-size: var(--text-xs);
    }
  }
  
  /* Advanced Typography Scaling */
  .topic-content-main .content-body {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: clamp(1.6, 3vw, 1.8);
  }
  
  .topic-title {
    line-height: clamp(1.1, 2vw, 1.2);
    word-break: break-word;
    hyphens: auto;
  }
  
  /* Enhanced Focus States for Accessibility */
  .action-btn:focus-visible,
  .reply-action-btn:focus-visible,
  .quick-action-btn:focus-visible,
  .submit-btn:focus-visible {
    outline: 3px solid var(--forum-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 6px rgba(99, 102, 241, 0.1);
  }
  
  /* Interactive State Improvements */
  .topic-badge,
  .topic-type-badge {
    transition: all var(--forum-transition);
    cursor: default;
  }
  
  .topic-badge:hover,
  .topic-type-badge:hover {
    transform: translateY(-1px) scale(1.02);
  }
  
  /* Enhanced Loading States */
  .reply-card.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
  }
  
  .reply-card.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    border: 3px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    border-top-color: var(--forum-primary);
    animation: spin 1s linear infinite;
  }
  
  /* Smooth Image Loading */
  .reply-card img,
  .content-body img {
    transition: opacity 0.3s ease;
  }
  
  .reply-card img.loading,
  .content-body img.loading {
    opacity: 0.5;
  }
  
  /* Enhanced Quote Styling */
  .content-body blockquote {
    position: relative;
    font-size: 1.1em;
    border-left-width: 5px;
    margin: var(--space-8) 0;
  }
  
  .content-body blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: -15px;
    font-size: 4rem;
    color: var(--forum-primary);
    opacity: 0.3;
    font-family: Georgia, serif;
    line-height: 1;
  }
  
  /* Code Block Enhancements */
  .content-body pre {
    background: var(--gray-900);
    color: var(--gray-100);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    overflow-x: auto;
    margin: var(--space-6) 0;
    box-shadow: var(--forum-shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .content-body code {
    background: rgba(99, 102, 241, 0.1);
    color: var(--forum-primary);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
  }
  
  .content-body pre code {
    background: transparent;
    color: inherit;
    padding: 0;
  }
  
  /* Enhanced Table Styling */
  .content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--forum-shadow-md);
  }
  
  .content-body th,
  .content-body td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
  }
  
  .content-body th {
    background: var(--forum-primary);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--text-sm);
  }
  
  .content-body tr:hover {
    background: rgba(99, 102, 241, 0.05);
  }
  
  /* List Improvements */
  .content-body ul,
  .content-body ol {
    margin: var(--space-6) 0;
    padding-left: var(--space-8);
  }
  
  .content-body li {
    margin-bottom: var(--space-3);
    line-height: 1.7;
  }
  
  .content-body ul li::marker {
    color: var(--forum-primary);
  }
  
  .content-body ol li::marker {
    color: var(--forum-primary);
    font-weight: 600;
  }
  
  /* Enhanced Sidebar Responsiveness */
  @media (max-width: 1199.98px) {
    .topic-sidebar {
      position: sticky;
      top: var(--space-4);
    }
  }
  
  @media (max-width: 991.98px) {
    .topic-sidebar {
      order: -1;
      margin-bottom: var(--space-8);
    }
    
    .sidebar-card {
      display: none;
    }
    
    .sidebar-card.actions-card {
      display: block;
    }
    
    .quick-actions {
      flex-direction: row;
      gap: var(--space-2);
    }
    
    .quick-action-btn {
      flex: 1;
      min-width: 0;
      padding: var(--space-3);
    }
    
    .quick-action-btn span {
      display: none;
    }
    
    .quick-action-btn i {
      margin: 0;
    }
  }
  
  /* Touch-Friendly Improvements */
  @media (hover: none) and (pointer: coarse) {
    .action-btn,
    .reply-action-btn,
    .quick-action-btn {
      min-height: 44px;
      min-width: 44px;
    }
    
    .related-topic-item {
      padding: var(--space-5);
    }
    
    .share-option {
      padding: var(--space-8) var(--space-6);
    }
  }
  
  /* Print Optimizations */
  @media print {
    .reading-progress,
    .breadcrumb-nav,
    .topic-badges,
    .topic-actions,
    .reply-actions,
    .back-to-top,
    .share-btn,
    .bookmark-btn,
    .reply-form-section {
      display: none !important;
    }
    
    .topic-hero {
      background: white !important;
      color: black !important;
      padding: var(--space-8) 0 !important;
      min-height: auto !important;
    }
    
    .topic-title {
      color: black !important;
      background: none !important;
      -webkit-text-fill-color: black !important;
      font-size: var(--text-3xl) !important;
    }
    
    .author-name,
    .card-title,
    .reply-author-name {
      color: black !important;
    }
    
    .topic-content-container,
    .reply-card,
    .sidebar-card {
      box-shadow: none !important;
      border: 1px solid #ddd !important;
      page-break-inside: avoid;
    }
    
    .content-body {
      font-size: 12pt !important;
      line-height: 1.5 !important;
    }
    
    .meta-item {
      background: none !important;
      color: black !important;
    }
  }
  
  /* Enhanced Animation Performance */
  @media (prefers-reduced-motion: no-preference) {
    .topic-badge,
    .topic-type-badge {
      animation-delay: calc(var(--animation-order, 0) * 0.1s);
    }
    
    .reply-card {
      animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) both;
      animation-delay: calc(var(--animation-order, 0) * 0.1s);
    }
    
    @keyframes slideInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .stat-item {
      animation: fadeInScale 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
      animation-delay: calc(var(--animation-order, 0) * 0.15s);
    }
    
    @keyframes fadeInScale {
      from {
        opacity: 0;
        transform: scale(0.8);
      }
      to {
        opacity: 1;
        transform: scale(1);
      }
    }
  }
  
  /* Advanced Grid Layouts for Better Content Organization */
  .topic-content-main {
    display: grid;
    gap: var(--space-8);
    grid-template-areas: 
      "content"
      "actions";
  }
  
  .content-body {
    grid-area: content;
  }
  
  .topic-actions {
    grid-area: actions;
  }
  
  @media (min-width: 768px) {
    .topic-content-main {
      grid-template-areas: 
        "content content"
        "actions actions";
      grid-template-columns: 1fr auto;
    }
  }
  
  /* Enhanced Dark Mode Support */
  @media (prefers-color-scheme: dark) {
    :root {
      --forum-bg: #0f172a;
      --forum-surface: #1e293b;
      --forum-border: #334155;
      --forum-text: #e2e8f0;
      --forum-text-secondary: #94a3b8;
    }
    
    .topic-hero {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    }
    
    .breadcrumb-nav {
      background: rgba(15, 23, 42, 0.95);
      border-bottom-color: var(--forum-border);
    }
    
    .sidebar-card,
    .topic-content-container,
    .reply-card,
    .reply-form-container {
      background: var(--forum-surface);
      border-color: var(--forum-border);
      color: var(--forum-text);
    }
    
    .content-body {
      color: var(--forum-text);
    }
    
    .topic-title,
    .card-title,
    .author-name,
    .reply-author-name,
    .form-title {
      color: var(--forum-text);
    }
    
    .form-control {
      background: rgba(30, 41, 59, 0.8);
      border-color: var(--forum-border);
      color: var(--forum-text);
    }
    
    .form-control:focus {
      background: var(--forum-surface);
      border-color: var(--forum-primary);
    }
    
    .action-btn,
    .reply-action-btn {
      background: rgba(30, 41, 59, 0.8);
      color: var(--forum-text);
      border-color: var(--forum-border);
    }
    
    .action-btn:hover,
    .reply-action-btn:hover {
      background: rgba(99, 102, 241, 0.2);
      color: var(--forum-primary);
    }
    
    .no-replies-container {
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
      border-color: rgba(99, 102, 241, 0.3);
    }
    
    .content-body blockquote {
      background: rgba(99, 102, 241, 0.1);
      border-left-color: var(--forum-primary);
    }
    
    .content-body table {
      background: var(--forum-surface);
    }
    
    .content-body th {
      background: var(--forum-primary);
    }
    
    .content-body td {
      border-bottom-color: var(--forum-border);
    }
    
    .content-body tr:hover {
      background: rgba(99, 102, 241, 0.1);
    }
  }
  
  /* High Contrast Mode Support */
  @media (prefers-contrast: high) {
    .action-btn,
    .reply-action-btn,
    .quick-action-btn {
      border-width: 2px;
      border-color: currentColor;
    }
    
    .topic-badge,
    .topic-type-badge {
      border: 2px solid currentColor;
    }
    
    .submit-btn {
      border: 3px solid white;
    }
    
    .form-control:focus {
      border-width: 3px;
    }
  }
  
  /* Enhanced Typography Hierarchy */
  .content-body h1 {
    font-size: var(--text-3xl);
    color: var(--gray-900);
    border-bottom: 3px solid var(--forum-primary);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-6);
  }
  
  .content-body h2 {
    font-size: var(--text-2xl);
    color: var(--gray-800);
    position: relative;
    padding-left: var(--space-6);
  }
  
  .content-body h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--forum-primary);
    border-radius: var(--radius-full);
  }
  
  .content-body h3 {
    font-size: var(--text-xl);
    color: var(--gray-800);
    border-left: 3px solid var(--forum-accent);
    padding-left: var(--space-4);
  }
  
  /* Enhanced Form Validation Styling */
  .form-group.has-error .form-control {
    border-color: var(--forum-danger);
    background: rgba(239, 68, 68, 0.05);
  }
  
  .form-group.has-success .form-control {
    border-color: var(--forum-success);
    background: rgba(34, 197, 94, 0.05);
  }
  
  .form-group.has-warning .form-control {
    border-color: var(--forum-warning);
    background: rgba(245, 158, 11, 0.05);
  }
  
  /* Real-time validation indicators */
  .form-control.validating {
    background-image: url("data:image/svg+xml,%3csvg width='16' height='16' viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M8 2a6 6 0 1 1 0 12A6 6 0 0 1 8 2Z' fill='%236366f1'/%3e%3cpath d='M8 3a5 5 0 1 0 0 10A5 5 0 0 0 8 3Z' fill='white'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    animation: validationSpin 1s linear infinite;
  }
  
  @keyframes validationSpin {
    to { transform: rotate(360deg); }
  }
  
  /* Enhanced Mobile Optimizations */
  @media (max-width: 575.98px) {
    /* Optimize touch targets */
    .topic-actions {
      position: sticky;
      bottom: 0;
      background: white;
      border-top: 1px solid var(--gray-200);
      padding: var(--space-4);
      margin: 0 calc(-1 * var(--space-6));
      z-index: 10;
    }
    
    .action-group {
      width: 100%;
      justify-content: space-around;
    }
    
    .action-btn {
      flex: 1;
      max-width: 80px;
      flex-direction: column;
      gap: var(--space-1);
      padding: var(--space-3) var(--space-2);
    }
    
    .action-btn span {
      font-size: var(--text-xs);
    }
    
    .reply-cta-btn {
      width: 100%;
      margin-top: var(--space-3);
      justify-content: center;
    }
    
    /* Improve text readability on small screens */
    .content-body {
      font-size: 1.1rem;
      line-height: 1.7;
    }
    
    .content-body p {
      margin-bottom: var(--space-5);
    }
    
    /* Optimize form for mobile */
    .reply-form-container {
      margin: 0 calc(-1 * var(--space-4));
      border-radius: 0;
      border-left: none;
      border-right: none;
    }
    
    .form-control {
      font-size: 16px; /* Prevent zoom on iOS */
      padding: var(--space-4) var(--space-3);
    }
    
    .submit-btn {
      position: sticky;
      bottom: var(--space-4);
      z-index: 10;
      box-shadow: var(--forum-shadow-xl);
    }
  }
  
  /* Enhanced Loading States */
  .lazy-load {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .lazy-load.loaded {
    opacity: 1;
    transform: translateY(0);
  }
  
  .skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
  }
  
  @keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
  }
  
  /* Performance Optimizations */
  .reply-card,
  .sidebar-card,
  .topic-content-container {
    contain: layout style paint;
  }
  
  .content-body img {
    content-visibility: auto;
    contain-intrinsic-size: 300px 200px;
  }
  
  /* Enhanced Accessibility */
  .skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--forum-primary);
    color: white;
    padding: 8px;
    border-radius: 4px;
    text-decoration: none;
    z-index: 10000;
    transition: top 0.3s;
  }
  
  .skip-link:focus {
    top: 6px;
  }
  
  /* Focus indicators for keyboard navigation */
  .reply-card:focus-within {
    outline: 2px solid var(--forum-primary);
    outline-offset: 2px;
  }
  
  /* Reduced motion preferences */
  @media (prefers-reduced-motion: reduce) {
    .topic-badge,
    .topic-type-badge,
    .reply-card,
    .stat-item,
    .lazy-load {
      animation: none !important;
      transition-duration: 0.01ms !important;
    }
    
    .hero-pattern,
    .hero-glow {
      animation: none !important;
    }
    
    .reading-progress {
      transition: none !important;
    }
  }