/* Insights Hub & Article Styles */
.insights-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

/* Category Grid */
.category-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    background: var(--bg-neutral);
    transition: all var(--transition-normal);
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

/* Table of Contents */
.toc-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    align-self: start;
    border-left: 2px solid var(--border-color);
    padding-left: 1.5rem;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-item {
    margin-bottom: 0.75rem;
}

.toc-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.toc-link:hover, .toc-link.active {
    color: var(--primary-color);
}

/* Inline CTAs */
.inline-cta {
    background: linear-gradient(135deg, #121212 0%, #000000 100%);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 2rem;
    margin: 2.5rem 0;
}

/* Article Body typography */
.article-body h2 {
    font-size: 1.75rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-primary);
}

.article-body h3 {
    font-size: 1.35rem;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.article-body ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Filter list styling */
.filter-input {
    width: 100%;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-neutral);
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 2rem;
}

.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Responsive Media Queries (Must be at the bottom for correct cascade overriding) */
@media (max-width: 992px) {
    .insights-grid {
        display: flex;
        flex-direction: column;
    }
    .toc-sidebar {
        order: -1;
        border-left: none;
        border-bottom: 1px solid var(--border-color);
        padding-left: 0;
        padding-bottom: 1.5rem;
        margin-bottom: 2.5rem;
        position: static !important;
    }
    .toc-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

@media (min-width: 576px) and (max-width: 992px) {
    .toc-list {
        grid-template-columns: 1fr 1fr;
    }
}

/* Pagination Styling */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.75rem;
    border: 1px solid var(--border-color);
    background: var(--bg-neutral);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Collapsible Card Description Styling */
.card-description-wrapper {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), margin-bottom 0.35s ease;
}

.read-more-toggle-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    padding: 0;
    margin-bottom: 1.5rem;
    cursor: pointer;
    text-align: left;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-family: inherit;
    transition: color var(--transition-fast);
}

.read-more-toggle-btn:hover {
    color: var(--text-primary);
}

.read-more-toggle-btn i {
    transition: transform 0.3s ease;
}

.read-more-toggle-btn.expanded i {
    transform: rotate(180deg);
}