/* Table of Contents Block Styles */

.revhyper-table-of-contents {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: var(--gray-50, #f9fafb);
    border: 1px solid var(--gray-200, #e5e7eb);
    border-radius: var(--radius-md, 8px);
    border-left: 4px solid var(--primary-color, #0066cc);
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.toc-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900, #111827);
    margin: 0;
    padding: 0;
    flex: 1;
}

.toc-toggle {
    background: transparent;
    border: 1px solid var(--gray-300, #d1d5db);
    border-radius: 4px;
    padding: 0.375rem 0.5rem;
    cursor: pointer;
    color: var(--gray-700, #374151);
    font-size: 0.75rem;
    line-height: 1;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
}

.toc-toggle:hover {
    background-color: var(--gray-100, #f3f4f6);
    border-color: var(--primary-color, #0066cc);
    color: var(--primary-color, #0066cc);
}

.toc-toggle-icon {
    display: inline-block;
    transition: transform 0.3s ease;
    transform: rotate(-90deg);
}

.toc-toggle[aria-expanded="true"] .toc-toggle-icon {
    transform: rotate(0deg);
}

.toc-nav {
    margin: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 0;
    opacity: 0;
    width: 100%;
    box-sizing: border-box;
}

.toc-nav.toc-expanded {
    max-height: 2000px;
    opacity: 1;
}

.toc-nav.toc-collapsed {
    max-height: 0;
    opacity: 0;
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.toc-item {
    margin: 0;
    padding: 0;
}

.toc-link {
    display: block;
    padding: 0.5rem 0.625rem;
    color: var(--gray-700, #374151);
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1.4;
    border-radius: var(--radius-sm, 4px);
    transition: all 0.2s ease;
    position: relative;
    padding-left: 1.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    width: 100%;
    box-sizing: border-box;
}

.toc-link::before {
    content: '→';
    position: absolute;
    left: 0.75rem;
    color: var(--gray-400, #9ca3af);
    transition: all 0.2s ease;
}

.toc-link:hover {
    background-color: white;
    color: var(--primary-color, #0066cc);
    transform: translateX(4px);
}

.toc-link:hover::before {
    color: var(--primary-color, #0066cc);
    transform: translateX(2px);
}

.toc-link.active {
    background-color: white;
    color: var(--primary-color, #0066cc);
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.toc-link.active::before {
    color: var(--primary-color, #0066cc);
}

/* Responsive Design */
@media (max-width: 768px) {
    .revhyper-table-of-contents {
        margin: 1.25rem 0;
        padding: 0.875rem;
        width: 100%;
        box-sizing: border-box;
        max-width: 100%;
    }
    
    .toc-header {
        margin-bottom: 0.625rem;
        width: 100%;
        box-sizing: border-box;
    }
    
    .toc-title {
        font-size: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        flex: 1;
        min-width: 0;
    }
    
    .toc-toggle {
        min-width: 24px;
        width: 24px;
        height: 24px;
        padding: 0.25rem 0.375rem;
        font-size: 0.6875rem;
        flex-shrink: 0;
    }
    
    .toc-nav {
        width: 100%;
        box-sizing: border-box;
    }
    
    .toc-list {
        width: 100%;
        box-sizing: border-box;
    }
    
    .toc-link {
        padding: 0.4375rem 0.5rem;
        padding-left: 1.375rem;
        font-size: 0.8125rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        width: 100%;
        box-sizing: border-box;
    }
    
    .toc-link::before {
        left: 0.5rem;
    }
}