/* ================================
   BLOG SECTION STYLES
   ================================ */

/* Blog-specific variables */
:root {
    --blog-content-width: 800px;
    --blog-grid-gap: 2rem;
}

/* ================================
   BLOG HERO SECTION
   ================================ */
.blog-main {
    padding-top: 70px;
}

.blog-hero {
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
    padding: 4rem 0 3rem;
    text-align: center;
}

.blog-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.blog-hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--text-medium);
    font-weight: 400;
    line-height: 1.6;
}

/* ================================
   BLOG CONTENT SECTION
   ================================ */
.blog-content-section {
    padding: 3rem 0 5rem;
}

/* Filter Buttons */
.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-light);
    border-radius: 2rem;
    background: white;
    color: var(--text-medium);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    border-color: var(--primary-blue);
    background: rgba(37, 99, 235, 0.05);
    color: var(--primary-blue);
}

.filter-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
    box-shadow: var(--shadow-md);
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--blog-grid-gap);
}

/* Article Card */
.article-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-light);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.2);
}

.article-card.hidden {
    display: none;
}

.article-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-light);
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.article-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 1.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    width: fit-content;
}

.tag-beginner {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-green);
}

.tag-sip {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
}

.tag-tax-saving {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-orange);
}

.tag-investing-tips {
    background: rgba(139, 92, 246, 0.1);
    color: #8B5CF6;
}

.article-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-excerpt {
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
}

.article-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.meta-date,
.meta-read-time {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: gap var(--transition-normal);
}

.article-link:hover {
    gap: 0.75rem;
}

/* ================================
   ARTICLE PAGE STYLES
   ================================ */

/* Breadcrumb */
.breadcrumb {
    padding: 1.5rem 0 1rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--text-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary-blue);
}

.breadcrumb span {
    margin: 0 0.5rem;
    color: var(--text-muted);
}

/* Article Hero */
.article-hero {
    padding: 2rem 0 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.article-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.article-hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.article-hero-summary {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.article-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-medium);
}

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

/* Featured Image */
.article-featured-image {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 3rem;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Article Body */
.article-body {
    max-width: var(--blog-content-width);
    margin: 0 auto;
    padding: 0 1.25rem 3rem;
}

.article-body h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-body h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-medium);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.article-body p {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

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

.article-body li {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.article-body li::marker {
    color: var(--primary-green);
}

.article-body blockquote {
    border-left: 4px solid var(--primary-blue);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-medium);
}

.article-body code {
    background: var(--bg-light);
    padding: 0.2rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.95em;
}

.article-body pre {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.article-body pre code {
    background: none;
    padding: 0;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

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

/* Sticky CTA Button */
.sticky-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
}

.sticky-cta .btn {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-normal);
}

.sticky-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Share Section */
.article-share {
    max-width: var(--blog-content-width);
    margin: 3rem auto;
    padding: 2rem 1.25rem;
    border-top: 2px solid var(--border-light);
    border-bottom: 2px solid var(--border-light);
}

.share-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    background: white;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.share-btn:hover {
    transform: scale(1.05);
    border-color: var(--primary-blue);
    background: rgba(37, 99, 235, 0.05);
}

.share-btn svg {
    width: 20px;
    height: 20px;
}

/* Related Articles */
.related-articles {
    padding: 4rem 0;
    background: var(--bg-light);
}

.related-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 2.5rem;
}

/* ================================
   BLOG CTA SECTION (NON-GRADIENT)
   ================================ */
.blog-cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 50%, rgba(16, 185, 129, 0.05) 100%);
}

.blog-cta-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.blog-cta-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.blog-cta-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Solid Blue Button (No Gradient) */
.btn-cta-solid {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    font-family: var(--font-primary);
    font-size: 1.0625rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-cta-solid:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-cta-solid svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Outline Button (Green) */
.btn-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: white;
    color: var(--success-green);
    border: 2px solid var(--success-green);
    border-radius: var(--radius-xl);
    font-family: var(--font-primary);
    font-size: 1.0625rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.1);
}

.btn-cta-outline:hover {
    background: var(--success-green);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.btn-cta-outline svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

/* Tablet */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .blog-hero {
        padding: 3rem 0 2rem;
    }

    .blog-hero-title {
        font-size: 2rem;
    }

    .blog-hero-subtitle {
        font-size: 1rem;
    }

    .blog-cta-section {
        padding: 3rem 0;
    }

    .blog-cta-title {
        font-size: 1.75rem;
    }

    .blog-cta-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .blog-cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-cta-solid,
    .btn-cta-outline {
        width: 100%;
        justify-content: center;
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }

    .blog-filters {
        gap: 0.5rem;
        margin-bottom: 2rem;
    }

    .filter-btn {
        padding: 0.6rem 1.25rem;
        font-size: 0.875rem;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .article-title {
        font-size: 1.25rem;
    }

    .article-body {
        padding: 0 1rem 2rem;
    }

    .article-body h2 {
        font-size: 1.5rem;
        margin-top: 2rem;
    }

    .article-body h3 {
        font-size: 1.25rem;
    }

    .article-body p,
    .article-body li {
        font-size: 1rem;
    }

    .sticky-cta {
        position: static;
        margin: 2rem auto;
        text-align: center;
    }

    .sticky-cta .btn {
        display: inline-flex;
        width: auto;
    }

    .share-buttons {
        flex-direction: column;
    }

    .share-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .blog-content-section {
        padding: 2rem 0 3rem;
    }

    .article-content {
        padding: 1.25rem;
    }

    .article-hero-meta {
        flex-direction: column;
        gap: 0.75rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

/* ================================
   SEO & LLM ENHANCEMENTS
   ================================ */

/* Lead Summary (Question Answer Snippets) */
.lead-summary {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: rgba(37, 99, 235, 0.03);
    border-left: 4px solid var(--primary-blue);
    border-radius: var(--radius-md);
}

.lead-summary strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Internal Links */
.internal-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(37, 99, 235, 0.3);
    transition: all var(--transition-fast);
}

.internal-link:hover {
    border-bottom-color: var(--primary-blue);
    color: #1d4ed8;
}

/* Social Snippets Section */
.social-snippets {
    max-width: var(--blog-content-width);
    margin: 3rem auto;
    padding: 2.5rem 1.25rem;
    background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 100%);
    border-radius: var(--radius-xl);
}

.social-snippets h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.snippet-grid {
    display: grid;
    gap: 1.5rem;
}

.social-snippet {
    background: white;
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-blue);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all var(--transition-normal);
}

.social-snippet:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.social-snippet p {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 1rem;
    font-weight: 500;
}

.snippet-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.snippet-share-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.snippet-share-btn svg {
    width: 18px;
    height: 18px;
}

/* FAQ Section */
.article-faq {
    max-width: var(--blog-content-width);
    margin: 3rem auto;
    padding: 2.5rem 1.25rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.article-faq h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.faq-grid {
    display: grid;
    gap: 1.25rem;
}

.faq-item {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    cursor: pointer;
    overflow: hidden;
}

.faq-item:hover {
    border-color: rgba(37, 99, 235, 0.2);
    background: white;
    box-shadow: var(--shadow-sm);
}

.faq-item.expanded {
    border-color: var(--primary-blue);
    background: white;
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 700;
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.faq-item.expanded .faq-question::after {
    content: '−';
}

.faq-icon {
    display: none;
}

.faq-answer {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-medium);
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.expanded .faq-answer {
    max-height: 1000px;
    padding: 0 1.5rem 1.5rem 1.5rem;
}

/* Reading Progress Bar */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-green));
    z-index: 9999;
    width: 0%;
    transition: width 0.1s ease;
}

/* Floating Share Button (Mobile) */
.floating-share-mobile {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: none;
}

.floating-share-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.floating-share-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.floating-share-btn svg {
    width: 24px;
    height: 24px;
}

.floating-share-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

.floating-share-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.floating-share-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    background: white;
    border: none;
    width: 100%;
    text-align: left;
}

.floating-share-item:hover {
    background: var(--bg-light);
}

.floating-share-item svg {
    width: 20px;
    height: 20px;
    color: var(--primary-blue);
}

/* ================================
   RESPONSIVE - SEO ENHANCEMENTS
   ================================ */

@media (max-width: 768px) {
    .lead-summary {
        font-size: 1.125rem;
        padding: 1rem;
    }

    .social-snippets {
        padding: 2rem 1rem;
    }

    .social-snippet p {
        font-size: 1rem;
    }

    .article-faq {
        padding: 2rem 1rem;
    }

    .article-faq h2 {
        font-size: 1.75rem;
    }

    .faq-question {
        font-size: 1rem;
    }

    .floating-share-mobile {
        display: block;
    }

    .snippet-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .lead-summary {
        font-size: 1rem;
    }

    .faq-item {
        padding: 1.25rem;
    }

    .floating-share-btn {
        width: 50px;
        height: 50px;
    }
}