:root {
     --bg-color: #f8f9fa;
     --text-color: #333;
     --card-bg: white;
     --border-color: #e9ecef;
     --primary-color: #007bff;
     --secondary-bg: #f8f9fa;
     --card-text-color: #333;
     --card-title-color: #333;
     --card-author-color: #666;
 }

 [data-theme="dark"] {
     --bg-color: #1a1a1a;
     --text-color: #ffffff;
     --card-bg: #2d2d2d;
     --border-color: #404040;
     --primary-color: #4dabf7;
     --secondary-bg: #333333;
     --card-text-color: #ffffff;
     --card-title-color: #ffffff;
     --card-author-color: #cccccc;
 }

 body {
     background: var(--bg-color);
     min-height: 100vh;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
     color: var(--text-color);
     transition: all 0.3s ease;
 }

 .navbar {
     background: var(--card-bg) !important;
     box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
     border-bottom: 1px solid var(--border-color);
 }

 .navbar-brand {
     font-weight: 700;
     font-size: 1.5rem;
     color: var(--primary-color) !important;
 }

 .nav-link {
     color: var(--text-color) !important;
 }

 .nav-link:hover {
     color: var(--primary-color) !important;
 }

 .main-container {
     background: var(--card-bg);
     border-radius: 8px;
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
     backdrop-filter: blur(10px);
     margin-top: 2rem;
     margin-bottom: 2rem;
     border: 1px solid var(--border-color);
 }

 .hero-section {
     background: var(--secondary-bg);
     color: var(--text-color);
     border-radius: 8px 8px 0 0;
     padding: 4rem 2rem;
     text-align: center;
 }

 .hero-title {
     font-size: 2.5rem;
     font-weight: 700;
     margin-bottom: 1rem;
     color: var(--text-color);
 }

 .hero-subtitle {
     font-size: 1.1rem;
     color: var(--text-color);
     opacity: 0.8;
     margin-bottom: 2rem;
 }

 .content-section {
     padding: 2rem;
 }

 .card {
     border: 1px solid var(--border-color);
     border-radius: 8px;
     box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
     transition: all 0.2s ease;
     background: var(--card-bg);
 }

 .card:hover {
     box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
 }

 .card-header {
     background: var(--secondary-bg);
     color: var(--text-color);
     border-bottom: 1px solid var(--border-color);
     padding: 1rem 1.5rem;
     font-weight: 600;
 }

 .novel-card,
 .illust-card {
     border-radius: 8px;
     overflow: hidden;
     margin-bottom: 1rem;
     border: 1px solid var(--border-color);
     background: var(--card-bg);
 }

 .novel-cover,
 .illust-thumb {
     width: 100%;
     height: 200px;
     object-fit: cover;
 }

 .novel-title,
 .illust-title {
     color: var(--card-title-color) !important;
     text-decoration: none;
 }

 .novel-title:hover,
 .illust-title:hover {
     color: var(--primary-color) !important;
 }

 .novel-author,
 .illust-author {
     color: var(--card-author-color) !important;
 }

 .stats-grid {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
     gap: 0.5rem;
     margin: 1rem 0;
     min-height: 100px;
 }

 .stat-item {
     text-align: center;
     padding: 0.5rem;
     background: var(--secondary-bg);
     border-radius: 6px;
     border: 1px solid var(--border-color);
     display: flex;
     flex-direction: column;
     justify-content: center;
     min-height: 70px;
 }

 .stat-icon {
     font-size: 1.2rem;
     margin-bottom: 0.25rem;
 }

 .stat-value {
     font-weight: 600;
     font-size: 0.9rem;
     color: var(--text-color);
 }

 .stat-label {
     font-size: 0.75rem;
     color: var(--text-color);
     opacity: 0.7;
 }

 .btn-custom {
     border-radius: 6px;
     padding: 0.75rem 1.5rem;
     font-weight: 600;
     transition: all 0.2s ease;
 }

 .btn-custom:hover {
     transform: translateY(-1px);
 }

 .empty-state {
     text-align: center;
     padding: 3rem;
     color: var(--text-color);
     opacity: 0.7;
 }

 .empty-icon {
     font-size: 4rem;
     margin-bottom: 1rem;
     opacity: 0.5;
 }

 .feature-card {
     background: var(--secondary-bg);
     border-radius: 8px;
     padding: 2rem;
     text-align: center;
     margin-bottom: 2rem;
     border: 1px solid var(--border-color);
 }

 .feature-card h5 {
     color: var(--text-color);
     margin-bottom: 1rem;
 }

 .feature-card p {
     color: var(--text-color);
     opacity: 0.8;
 }

 .feature-icon {
     font-size: 3rem;
     margin-bottom: 1rem;
     color: var(--primary-color);
 }

 .footer {
     background: var(--secondary-bg);
     color: var(--text-color);
     text-align: center;
     padding: 2rem;
     border-radius: 0 0 8px 8px;
     border-top: 1px solid var(--border-color);
 }

 .theme-toggle {
     background: var(--primary-color);
     border: none;
     border-radius: 6px;
     padding: 0.5rem 1rem;
     color: white;
     cursor: pointer;
     transition: all 0.2s ease;
 }

 .theme-toggle:hover {
     opacity: 0.9;
 }

 .tag {
     display: inline-block;
     background: var(--primary-color);
     color: white;
     padding: 0.2rem 0.4rem;
     margin: 0.1rem;
     border-radius: 3px;
     font-size: 0.7rem;
     font-weight: 500;
 }

 .tag-more {
     display: inline-block;
     background: var(--secondary-bg);
     color: var(--text-color);
     padding: 0.2rem 0.4rem;
     margin: 0.1rem;
     border-radius: 3px;
     font-size: 0.7rem;
     font-weight: 500;
     border: 1px solid var(--border-color);
 }

 .tags-section {
     display: flex;
     flex-wrap: wrap;
     gap: 0.2rem;
 }

 @media (max-width: 768px) {
     .hero-title {
         font-size: 2rem;
     }

     .content-section {
         padding: 1rem;
     }

     .stats-grid {
         grid-template-columns: repeat(2, 1fr);
     }
 }

 .text-muted {
     color: var(--text-color) !important;
     opacity: 0.7;
 }

 .text-muted code {
     color: var(--primary-color);
     background: var(--secondary-bg);
     padding: 0.2rem 0.4rem;
     border-radius: 4px;
     font-size: 0.9em;
     border: 1px solid var(--border-color);
 }