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

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

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);
    margin-top: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.novel-header {
    background: var(--secondary-bg);
    color: var(--text-color);
    border-radius: 8px 8px 0 0;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.novel-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.novel-author {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.novel-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.meta-item {
    background: var(--card-bg);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.content-section {
    padding: 2rem;
}

.novel-cover {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
    min-height: 120px;
}

.stat-card {
    background: var(--secondary-bg);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100px;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

.novel-description {
    background: var(--secondary-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    line-height: 1.8;
    font-size: 1.1rem;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.novel-description a {
    color: var(--primary-color);
    text-decoration: none;
}

.novel-description a:hover {
    text-decoration: underline;
}

.novel-content {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    line-height: 1.8;
    font-size: 1.1rem;
    white-space: pre-wrap;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-custom {
    background: var(--primary-color);
    border: none;
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
}

.btn-custom:hover {
    background: var(--primary-color);
    opacity: 0.9;
    color: white;
    transform: translateY(-1px);
}

.btn-outline-custom {
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
    background: transparent;
}

.btn-outline-custom:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.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);
}

.tag {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
}

.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;
}

@media (max-width: 768px) {
    .novel-title {
        font-size: 1.5rem;
    }

    .content-section {
        padding: 1rem;
    }

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

    .novel-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}