/* Resources Module - Article & Index Styles */

/* ===== Resources Hero ===== */
.resources-hero {
    padding: 6rem 0 3rem;
    background: var(--bg-primary);
    text-align: center;
}

.resources-hero h1 {
    margin-bottom: 0.75rem;
}

.resources-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Resources Content ===== */
.resources-content {
    padding: 2rem 0 4rem;
    background: var(--bg-primary);
}

.resources-content .empty-state {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-muted);
}

.resources-content .empty-state .btn-ghost {
    margin-top: 1rem;
}

/* ===== Article Page Layout ===== */
.article-page {
    padding: 5rem 0 0;
    background: var(--bg-primary);
}

.article-page > .container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Article Header ===== */
.article-back {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 2rem;
    transition: color 0.2s;
}

.article-back:hover {
    color: var(--accent-primary);
    text-decoration: none;
}

.article-back .lucide {
    width: 1rem;
    height: 1rem;
}

.article-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
    font-family: var(--font-headline);
    font-size: 2.5rem;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.article-time {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.article-date {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.article-meta .article-date::before {
    content: "·";
    margin-right: 0.5rem;
}

.article-description {
    font-size: 1.1875rem;
    line-height: 1.6;
    color: var(--text-secondary);
    letter-spacing: -0.1px;
}

/* ===== Article Body Typography ===== */
.article-content {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-primary);
    letter-spacing: -0.1px;
}

.article-content p {
    margin-bottom: 1.75rem;
}

.article-content h2 {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.3px;
    color: var(--text-primary);
    margin-top: 3rem;
    margin-bottom: 1rem;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.15px;
    color: var(--text-primary);
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.article-content h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

/* Remove top margin when heading is the first child */
.article-content > h2:first-child,
.article-content > h3:first-child,
.article-content > h4:first-child {
    margin-top: 0;
}

.article-content a {
    color: var(--accent-primary);
    text-decoration: underline;
    text-decoration-color: rgba(124, 197, 174, 0.4);
    text-underline-offset: 2px;
    transition: text-decoration-color 0.2s;
}

.article-content a:hover {
    text-decoration-color: var(--accent-primary);
}

.article-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* Lists */
.article-content ul,
.article-content ol {
    margin-bottom: 1.75rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.625rem;
    line-height: 1.65;
}

.article-content li:last-child {
    margin-bottom: 0;
}

.article-content li > ul,
.article-content li > ol {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Blockquotes */
.article-content blockquote {
    border-left: 3px solid var(--accent-primary);
    padding: 0.25rem 0 0.25rem 1.5rem;
    margin: 2rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.article-content blockquote p {
    margin-bottom: 0.75rem;
}

.article-content blockquote p:last-child {
    margin-bottom: 0;
}

/* Code */
.article-content code {
    font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
    font-size: 0.875em;
    padding: 0.125rem 0.375rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
}

.article-content pre {
    margin: 1.75rem 0;
    padding: 1.25rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
    line-height: 1.5;
}

.article-content pre code {
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
    font-size: 0.875rem;
}

/* Tables */
.article-content table {
    margin: 1.75rem 0;
    font-size: 0.9375rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.article-content th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
}

.article-content td {
    padding: 0.75rem 1rem;
    vertical-align: top;
}

.article-content tr:last-child td {
    border-bottom: none;
}

/* Horizontal rules */
.article-content hr {
    margin: 2.5rem 0;
    border-color: var(--border-color);
}

/* Chart containers */
.article-content .chart-container {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.article-content .chart-container h4 {
    margin-top: 0;
}

.article-content .chart-summary,
.article-content .chart-assumptions {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 0.75rem;
}

/* ===== Article Next / Continue Learning ===== */
.article-next {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.article-next h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.next-articles-grid {
    display: grid;
    gap: 1rem;
}

/* ===== Article Tools Cross-Links ===== */
.article-tools {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.article-tools h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.article-tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.article-tool-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.article-tool-link:hover {
    border-color: var(--accent-primary);
}

.article-tool-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(124, 197, 174, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.article-tool-icon .lucide {
    width: 1.5rem;
    height: 1.5rem;
}

.article-tool-link strong {
    display: block;
    color: var(--text-primary);
    font-size: 0.9375rem;
    margin-bottom: 0.125rem;
}

.article-tool-link span {
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

/* ===== Resource Filters ===== */
.resources-filter {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-tag:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
    background: var(--bg-card-hover);
}

.filter-tag.active {
    color: #141c24;
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    font-weight: 600;
}

[data-theme="light"] .filter-tag.active {
    color: #fff;
}

/* ===== Resource Cards ===== */
.resource-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--card-border, var(--border-color));
    border-radius: 16px;
    padding: 1.5rem;
    text-decoration: none;
    box-shadow: var(--card-shadow, none);
    transition: all 0.2s ease;
}

.resource-card:hover {
    background: var(--bg-card-hover, var(--bg-card));
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.resource-icon {
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    color: var(--accent-primary);
}

.resource-icon svg {
    width: 100%;
    height: 100%;
}

.resource-info {
    flex: 1;
    min-width: 0;
}

.resource-info h3 {
    color: var(--text-primary);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.resource-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.resource-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.resource-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.resource-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 0.125rem 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 8px;
}

.resource-arrow {
    flex-shrink: 0;
    color: var(--text-muted);
    font-size: 1.125rem;
    transition: transform 0.2s;
    align-self: center;
}

.resource-card:hover .resource-arrow {
    color: var(--accent-primary);
    transform: translateX(4px);
}

/* ===== Learn More Grid (Tool Pages) ===== */
.learn-more-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* ===== Resources Grid (Index Page) ===== */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* ===== Source Citations ===== */
.article-content small {
    display: block;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.article-content small a {
    color: var(--text-muted);
    text-decoration: underline;
    text-decoration-color: var(--border-color);
    transition: color 0.2s;
}

.article-content small a:hover {
    color: var(--accent-primary);
}

.source-citation {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.source-citation a {
    color: var(--text-muted);
    text-decoration: underline;
    text-decoration-color: var(--border-color);
    transition: color 0.2s;
}

.source-citation a:hover {
    color: var(--accent-primary);
}

/* ===== Quick Reference (HSA Limits) ===== */
.resources-reference {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.resources-reference h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.reference-card {
    background: var(--bg-card);
    border: 1px solid var(--card-border, var(--border-color));
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--card-shadow, none);
}

.reference-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.reference-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-primary);
}

/* ===== Article CTA Section ===== */
.article-cta {
    padding: 4rem 0;
    background: var(--bg-secondary);
    text-align: center;
}

.article-cta-content {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 2rem;
}

.article-cta-content h3 {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.article-cta-content p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.article-cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .article-page {
        padding: 4rem 0 0;
    }

    .article-header h1 {
        font-size: 1.875rem;
        letter-spacing: -0.3px;
    }

    .article-header {
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
    }

    .article-description {
        font-size: 1.0625rem;
    }

    .article-content {
        font-size: 1.0625rem;
    }

    .article-content h2 {
        font-size: 1.5rem;
        margin-top: 2.5rem;
    }

    .article-content h3 {
        font-size: 1.125rem;
        margin-top: 2rem;
    }

    .article-tools-grid,
    .learn-more-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }

    .resource-card {
        padding: 1.25rem;
    }

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

    .article-cta-actions {
        flex-direction: column;
    }

    .resources-hero {
        padding: 5rem 0 2rem;
    }

    .resources-subtitle {
        font-size: 1rem;
    }
}

/* ===== Light Theme Overrides ===== */
[data-theme="light"] .article-tool-icon {
    background: rgba(91, 168, 142, 0.1);
}

[data-theme="light"] .article-content a {
    text-decoration-color: rgba(91, 168, 142, 0.4);
}

@media (max-width: 480px) {
    .reference-grid {
        grid-template-columns: 1fr;
    }

    .reference-value {
        font-size: 1.5rem;
    }
}