/* ===== CHAPTER CARD COMPONENT ===== */
.chapter-section {
    margin: 0;
}

.chapter-section h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-size: 1.5rem;
}

.chapter-card {
    background: rgba(17, 17, 17, 0.9);
    border: 1px solid rgba(255, 0, 248, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 25vw; /* Responsive max-width */
    position: relative;
    overflow: hidden;
}

/* Compact version within content sidebar */
.content-sidebar .chapter-card {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(255, 0, 248, 0.15);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.content-sidebar .chapter-card-image {
    height: clamp(80px, 8vw, 150px); /* Responsive compact size */
}

.content-sidebar .chapter-card-title {
    font-size: 1.1rem;
}

.content-sidebar .chapter-card-series {
    font-size: 0.8rem;
}

.content-sidebar .chapter-card-subtitle {
    font-size: 0.85rem;
    display: none; /* Hide subtitle in compact version */
}

.content-sidebar .chapter-card-badge {
    font-size: 0.7rem;
    padding: 1px var(--spacing-xs);
}

.chapter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 0, 248, 0.05) 0%, rgba(255, 0, 248, 0.15) 100%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.chapter-card:hover {
    border-color: rgba(255, 0, 248, 0.4);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.chapter-card:hover::before {
    opacity: 1;
}

.chapter-card-image {
    width: 100%;
    height: clamp(120px, 12vw, 220px); /* Responsive height */
    object-fit: cover;
    object-position: center;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-normal);
    border: 2px solid rgba(255, 0, 248, 0.1);
}

.chapter-card:hover .chapter-card-image {
    transform: scale(1.02);
    border-color: rgba(255, 0, 248, 0.3);
}

.chapter-card-content {
    padding: 0;
    position: relative;
    z-index: 2;
}

.chapter-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chapter-card-title::before {
    content: '📖';
    font-size: 1.1rem;
    filter: drop-shadow(0 0 5px rgba(255, 0, 248, 0.3));
}

.chapter-card-series {
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.chapter-card-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.chapter-card-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-color), #ff33ff);
    color: var(--background-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 0, 248, 0.3);
}

.chapter-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

/* Loading state */
.chapter-card.loading {
    background: var(--background-secondary);
    animation: pulse 1.5s ease-in-out infinite;
}

.chapter-card.loading .chapter-card-image {
    background: var(--background-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chapter-card.loading .chapter-card-image::after {
    content: '';
    width: 30px;
    height: 30px;
    border: 2px solid var(--accent-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 767.98px) {
    .chapter-card {
        max-width: 100%;
        padding: var(--spacing-md);
    }
    
    .chapter-card-image {
        height: 140px;
    }
    
    .chapter-card-title {
        font-size: 1.1rem;
    }
    
    .chapter-card-series {
        font-size: 0.8rem;
    }
    
    .chapter-card-subtitle {
        font-size: 0.9rem;
    }
}

@media (max-width: 575.98px) {
    .chapter-section h2 {
        font-size: 1.3rem;
        text-align: center;
    }
    
    .chapter-card {
        padding: var(--spacing-sm);
    }
    
    .chapter-card-image {
        height: 120px;
    }
    
    .chapter-card-title {
        font-size: 1rem;
    }
    
    .chapter-card-badge {
        font-size: 0.75rem;
        padding: 2px var(--spacing-xs);
    }
}