/* ===================================
   Blog Article Styles
   =================================== */

/* Article Table of Contents */
.article-toc {
    position: fixed;
    left: 2rem;
    top: 120px;
    width: 220px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
    max-height: calc(100vh - 160px);
    overflow-y: auto;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.article-toc h4 {
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
    color: #D4A574;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.article-toc li {
    margin-bottom: 0.75rem;
}

.article-toc a {
    color: #c0c0c0;
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.4;
    display: block;
    padding: 0.25rem 0;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
    transition: all 0.3s ease;
}

.article-toc a:hover,
.article-toc a.active {
    color: #D4A574;
    border-left-color: #D4A574;
    padding-left: 1rem;
}

/* Article Container */
.blog-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    line-height: 1.8;
    color: #e0e0e0;
}

/* Article Header */
.article-header {
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.article-category {
    display: inline-block;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-category i {
    margin-right: 0.5rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.article-subtitle {
    font-size: 1.25rem;
    color: #a0a0a0;
    font-weight: 400;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 2rem;
}

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

.article-meta i {
    color: #D4A574;
}

/* Hero Video */
.hero-video-container {
    width: 100vw;
    height: 80vh;
    min-height: 600px;
    max-height: 1000px;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 2rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
}

.hero-overlay .container {
    max-width: 900px;
    width: 100%;
}

.hero-overlay .article-meta {
    margin-bottom: 2rem;
    position: relative;
    z-index: 3;
}

.hero-overlay .article-meta span {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
}

.hero-title-card {
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 165, 116, 0.3);
    border-radius: 16px;
    padding: 3rem 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 3;
}

.hero-title-card .article-title {
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-title-card .article-subtitle {
    margin-bottom: 0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Hero Image / Placeholder */
.article-hero {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.article-hero-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px dashed #D4A574;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 3rem;
    color: #888;
}

.article-hero-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #D4A574;
}

.article-hero-placeholder p {
    margin: 0.5rem 0;
    font-size: 1rem;
    color: #a0a0a0;
}

.article-hero-placeholder small {
    font-size: 0.875rem;
    color: #666;
}

/* Article Content */
.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
    position: relative;
    padding-bottom: 0.5rem;
}

.article-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #D4A574 0%, #A0825A 100%);
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: #f0f0f0;
}

.article-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: #e0e0e0;
}

.article-content p {
    margin-bottom: 1.5rem;
    color: #d0d0d0;
}

.article-content strong {
    color: #ffffff;
    font-weight: 600;
}

.article-content em {
    font-style: italic;
    color: #a0a0a0;
}

.article-content a {
    color: #D4A574;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.article-content a:hover {
    border-bottom-color: #D4A574;
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.75rem;
    color: #d0d0d0;
}

.article-content li strong {
    color: #ffffff;
}

/* Callout Boxes */
.callout-box {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    border-left: 4px solid #D4A574;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
    display: flex;
    align-items: start;
    gap: 1rem;
}

.callout-box i {
    font-size: 1.5rem;
    color: #D4A574;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.callout-box p {
    margin: 0;
    color: #e0e0e0;
}

/* Quote Box */
.quote-box {
    background: rgba(255, 255, 255, 0.03);
    border-left: 4px solid #A0825A;
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
    border-radius: 8px;
    position: relative;
}

.quote-box p {
    font-size: 1.2rem;
    font-style: italic;
    color: #f0f0f0;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.quote-box cite {
    display: block;
    font-size: 0.95rem;
    color: #888;
    font-style: normal;
}

.quote-box cite a {
    color: #D4A574;
    text-decoration: none;
}

/* Info Box */
.info-box {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.info-box h4 {
    margin-top: 0;
    color: #D4A574;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box p {
    margin-bottom: 0;
    color: #d0d0d0;
}

/* Research Findings */
.research-findings {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.finding-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.finding-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.finding-card h4 {
    margin-top: 0;
    color: #D4A574;
    font-size: 1.1rem;
}

.finding-card p {
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
    color: #c0c0c0;
}

.finding-card p:last-child {
    margin-bottom: 0;
}

/* Method List */
.method-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.method-item {
    display: flex;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.method-item i {
    font-size: 2rem;
    color: #D4A574;
    flex-shrink: 0;
}

.method-content h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: #f0f0f0;
}

.method-content p {
    margin: 0;
    color: #c0c0c0;
}

/* Use Case Matrix */
.use-case-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.use-case-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
}

.use-case-card h4 {
    margin-top: 0;
    color: #D4A574;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.use-case-card ul {
    margin: 0;
    padding-left: 1.5rem;
}

.use-case-card li {
    margin-bottom: 0.5rem;
    color: #c0c0c0;
}

/* Comparison Tables */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

.comparison-table thead {
    background: rgba(212, 165, 116, 0.15);
}

.comparison-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #D4A574;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table td {
    padding: 1rem;
    color: #d0d0d0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    vertical-align: top;
}

.comparison-table tbody tr:nth-child(odd) {
    background: rgba(255, 255, 255, 0.03);
}

.comparison-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.06);
}

.comparison-table tbody tr:hover {
    background: rgba(212, 165, 116, 0.08);
}

.matrix-section {
    margin-bottom: 3rem;
}

.matrix-section h4 {
    color: #D4A574;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.matrix-section.highlight .comparison-table thead {
    background: rgba(212, 165, 116, 0.2);
}

.ideal-conditions {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-left: 3px solid #D4A574;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #c0c0c0;
}

/* Comparison Cards */
.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.comparison-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #D4A574 0%, #A0825A 100%);
}

.comparison-card h3 {
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #ffffff;
}

.comparison-card h3 i {
    color: #D4A574;
}

.comparison-card h4 {
    color: #D4A574;
    font-size: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.comparison-card ul {
    margin: 0;
    padding-left: 1.5rem;
}

.comparison-card li {
    margin-bottom: 0.5rem;
}

.comparison-card p {
    margin-bottom: 1rem;
}

.comparison-card p:last-child {
    margin-bottom: 0;
}

/* Process Steps */
.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.step-number {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
}

.step-content h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: #f0f0f0;
}

.step-content p {
    margin: 0;
    color: #c0c0c0;
}

/* Article Image */
.article-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background: rgba(102, 126, 234, 0.1);
    border: 2px dashed rgba(102, 126, 234, 0.3);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 2rem 0;
    color: #888;
}

.image-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #D4A574;
}

.image-placeholder p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

/* References Section */
.references-section {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
}

.references-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

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

.references-list li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #c0c0c0;
}

.references-list li::before {
    content: '[' attr(data-ref) ']';
    position: absolute;
    left: 0;
    color: #D4A574;
    font-weight: 600;
}

.references-list a {
    color: #D4A574;
    text-decoration: none;
    word-break: break-all;
}

.references-list a:hover {
    text-decoration: underline;
}

/* Disclaimer Box */
.disclaimer-box {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 3rem 0;
    display: flex;
    gap: 1rem;
}

.disclaimer-box i {
    font-size: 1.5rem;
    color: #ffc107;
    flex-shrink: 0;
}

.disclaimer-box h4 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    color: #ffc107;
}

.disclaimer-box p {
    margin: 0;
    font-size: 0.9rem;
    color: #d0d0d0;
}

/* Related Articles */
.related-articles {
    margin-top: 4rem;
    padding: 3rem 0;
    background: rgba(0, 0, 0, 0.3);
    border-top: 2px solid rgba(212, 165, 116, 0.2);
}

.related-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.related-title i {
    color: #D4A574;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.related-article-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.related-article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(212, 165, 116, 0.3);
    border-color: rgba(212, 165, 116, 0.5);
}

.related-article-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.related-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.coming-soon-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    color: #ffffff;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.related-article-content {
    padding: 1.5rem;
}

.related-category {
    display: inline-block;
    font-size: 0.75rem;
    color: #D4A574;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.related-category i {
    margin-right: 0.3rem;
}

.related-article-content h4 {
    font-size: 1.2rem;
    margin: 0 0 0.75rem 0;
    color: #ffffff;
    line-height: 1.3;
}

.related-article-content p {
    font-size: 0.95rem;
    color: #a0a0a0;
    margin: 0;
    line-height: 1.6;
}

/* Hide TOC when at bottom */
.article-toc.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Author Section */
.author-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 2rem;
    margin: 3rem 0;
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #ffffff;
}

.author-info h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.author-info p {
    margin: 0;
    color: #a0a0a0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    text-align: center;
    margin: 3rem 0;
    padding: 2rem;
    background: rgba(212, 165, 116, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(212, 165, 116, 0.2);
}

.btn-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    color: #ffffff;
    border: 2px solid #D4A574;
    box-shadow: 0 4px 16px rgba(212, 165, 116, 0.3);
}

.btn-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 165, 116, 0.5);
    border-color: #D4A574;
}

.cta-note {
    margin-top: 1rem;
    color: #a0a0a0;
    font-size: 0.9rem;
}

/* Content Section Spacing */
.content-section {
    margin-bottom: 4rem;
}

.content-section:last-child {
    margin-bottom: 2rem;
}

/* List Styles */
.styled-list,
.feature-list,
.numbered-list {
    margin: 1.5rem 0;
    padding-left: 0;
    list-style: none;
}

.styled-list li,
.feature-list li {
    margin-bottom: 1rem;
    padding-left: 2.5rem;
    position: relative;
    color: #d0d0d0;
    font-size: 1.05rem;
    line-height: 1.7;
}

.styled-list li i,
.feature-list li i {
    position: absolute;
    left: 0;
    top: 0.2rem;
    color: #D4A574;
    font-size: 1.2rem;
}

.numbered-list {
    padding-left: 2rem;
    list-style: decimal;
}

.numbered-list li {
    margin-bottom: 1rem;
    color: #d0d0d0;
    font-size: 1.05rem;
    line-height: 1.7;
    padding-left: 0.5rem;
}

/* Small Text Consistency */
small, .small-text {
    font-size: 0.9rem;
    color: #a0a0a0;
}

sup {
    font-size: 0.75em;
    vertical-align: super;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.info-card i {
    font-size: 2rem;
    color: #D4A574;
    margin-bottom: 1rem;
    display: block;
}

.info-card h4 {
    margin: 0 0 0.75rem 0;
    color: #f0f0f0;
    font-size: 1.1rem;
}

.info-card p {
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
    color: #c0c0c0;
    line-height: 1.6;
}

.info-card p:last-child {
    margin-bottom: 0;
}

/* Use Cases Grid */
.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.use-case {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.use-case i {
    font-size: 2rem;
    color: #D4A574;
    margin-bottom: 1rem;
    display: block;
}

.use-case h4 {
    margin: 0 0 0.75rem 0;
    color: #f0f0f0;
    font-size: 1.1rem;
}

.use-case p {
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
    color: #c0c0c0;
    line-height: 1.6;
}

.use-case p:last-child {
    margin-bottom: 0;
}

/* Summary Box */
.summary-box {
    background: rgba(212, 165, 116, 0.1);
    border: 1px solid rgba(212, 165, 116, 0.3);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.summary-box p {
    margin: 0.75rem 0;
    font-size: 1rem;
    color: #d0d0d0;
}

.summary-box p:last-child {
    margin-bottom: 0;
}

/* Constraint List */
.constraint-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.constraint {
    display: flex;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.constraint i {
    font-size: 1.75rem;
    color: #D4A574;
    flex-shrink: 0;
}

.constraint strong {
    display: block;
    color: #f0f0f0;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

.constraint p {
    margin: 0 0 1rem 0;
    color: #c0c0c0;
    font-size: 0.95rem;
}

.constraint p:last-child {
    margin-bottom: 0;
}

/* Pros/Cons Grid */
.pros-cons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.pros, .cons {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
}

.pros h4, .cons h4 {
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #D4A574;
}

.pros ul, .cons ul {
    margin: 1rem 0 0 0;
    padding-left: 1.5rem;
}

.pros li, .cons li {
    margin-bottom: 0.75rem;
    color: #c0c0c0;
}

/* Formula Comparison */
.formula-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.formula-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
}

.formula-card.highlight {
    background: rgba(212, 165, 116, 0.1);
    border-color: rgba(212, 165, 116, 0.3);
}

.formula-card h4 {
    margin-top: 0;
    color: #D4A574;
}

.formula {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    color: #e0e0e0;
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0 0 0;
}

/* Comparison Box */
.comparison-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.approach h4 {
    margin-top: 0;
    color: #D4A574;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.approach p {
    margin: 0.5rem 0 0 0;
    color: #c0c0c0;
}

/* Combined Approach */
.combined-approach {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.step-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
    position: relative;
    padding-left: 8rem;
}

.step-label {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
}

.step-card p {
    margin: 0;
    color: #d0d0d0;
}

/* Research Summary */
.research-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.summary-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
}

.summary-card h4 {
    margin-top: 0;
    color: #D4A574;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.summary-card ul {
    margin: 1rem 0 0 0;
    padding-left: 0;
    list-style: none;
}

.summary-card li {
    margin-bottom: 0.75rem;
    padding-left: 2rem;
    position: relative;
    color: #c0c0c0;
}

.summary-card li i {
    position: absolute;
    left: 0;
    top: 0.2rem;
    color: #D4A574;
}

/* Research Gap */
.research-gap {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    display: flex;
    gap: 1rem;
}

.research-gap i {
    font-size: 1.5rem;
    color: #ffc107;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.research-gap p {
    margin: 0.5rem 0;
    color: #d0d0d0;
    font-size: 0.95rem;
}

/* Final Comparison */
.final-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.approach-summary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 8px;
}

.approach-summary h4 {
    margin-top: 0;
    color: #D4A574;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.approach-summary p {
    margin: 1rem 0;
    color: #c0c0c0;
    line-height: 1.7;
}

.approach-summary p:first-of-type {
    margin-top: 1rem;
}

.approach-summary p:last-child {
    margin-bottom: 0;
}

/* Conclusion Statement */
.conclusion-statement {
    font-size: 1.15rem;
    color: #f0f0f0;
    font-weight: 500;
    text-align: center;
    padding: 1.5rem;
    background: rgba(212, 165, 116, 0.1);
    border-radius: 8px;
    margin: 2rem 0;
}

/* Paradigm Shift */
.paradigm-shift {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

.shift-from, .shift-to {
    flex: 1;
}

.shift-from strong, .shift-to strong {
    display: block;
    color: #D4A574;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.shift-from p, .shift-to p {
    margin: 0;
    color: #e0e0e0;
    font-style: italic;
}

.paradigm-shift i {
    font-size: 2rem;
    color: #D4A574;
    flex-shrink: 0;
}

/* Final Message */
.final-message {
    font-size: 1.2rem;
    color: #f0f0f0;
    font-weight: 500;
    text-align: center;
    font-style: italic;
    margin: 2rem 0;
}

/* Lead Paragraph */
.lead {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #e0e0e0;
    margin-bottom: 2rem;
}

/* Finding Header */
.finding-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.finding-header i {
    color: #D4A574;
    font-size: 1.25rem;
}

/* Quote Box Highlight */
.quote-box.highlight {
    background: rgba(212, 165, 116, 0.1);
    border-left-color: #D4A574;
}

/* Author Bio */
.author-bio {
    margin-top: 3rem;
}

.author-card {
    display: flex;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
}

.author-card .author-avatar {
    width: 80px;
    height: 80px;
}

.author-card .author-info h4 {
    margin-top: 0;
    color: #ffffff;
}

.author-card .author-info p {
    margin: 0;
    color: #a0a0a0;
}

/* Conclusion Section */
.conclusion {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
}

/* References Section */
.references {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
}

/* Disclaimer Section */
.disclaimer {
    margin-top: 3rem;
    margin-bottom: 2rem;
}

/* Back to Top Button */
.back-to-top,
.go-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 16px rgba(212, 165, 116, 0.4);
    z-index: 1000;
}

.back-to-top.visible,
.go-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover,
.go-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.6);
}

/* Mobile TOC Toggle Button */
.mobile-toc-toggle {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #D4A574 0%, #A0825A 100%);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: 1.25rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 16px rgba(212, 165, 116, 0.4);
    z-index: 1000;
}

.mobile-toc-toggle:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.6);
}

.mobile-toc-toggle.active {
    background: linear-gradient(135deg, #A0825A 0%, #D4A574 100%);
}

.mobile-toc-toggle.active i {
    transform: rotate(90deg);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .article-toc {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-video-container {
        height: 50vh;
        min-height: 400px;
    }

    .hero-title-card {
        padding: 2rem 1.5rem;
    }

    .hero-title-card .article-title {
        font-size: 1.5rem;
    }

    .hero-title-card .article-subtitle {
        font-size: 1rem;
    }

    .blog-article {
        padding: 1.5rem 1rem;
    }

    .article-title {
        font-size: 1.75rem;
    }

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

    .article-meta {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .article-content {
        font-size: 1rem;
    }

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

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

    .article-content h4 {
        font-size: 1.1rem;
    }

    .quote-box p {
        font-size: 1rem;
    }

    .research-findings {
        grid-template-columns: 1fr;
    }

    .comparison-cards {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }

    .use-case-matrix {
        grid-template-columns: 1fr;
    }

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

    .use-cases {
        grid-template-columns: 1fr;
    }

    .pros-cons {
        grid-template-columns: 1fr;
    }

    .formula-comparison {
        grid-template-columns: 1fr;
    }

    .comparison-box {
        grid-template-columns: 1fr;
    }

    .research-summary {
        grid-template-columns: 1fr;
    }

    .final-comparison {
        grid-template-columns: 1fr;
    }

    .paradigm-shift {
        flex-direction: column;
        gap: 1rem;
    }

    .paradigm-shift i {
        transform: rotate(90deg);
    }

    .step-card {
        padding-left: 1.5rem;
        padding-top: 4rem;
    }

    .step-label {
        left: 50%;
        top: 1.5rem;
        transform: translateX(-50%);
    }

    .constraint {
        flex-direction: column;
        gap: 1rem;
    }

    .method-item {
        flex-direction: column;
        gap: 1rem;
    }

    .author-section,
    .author-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

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

    .back-to-top,
    .go-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }

    /* Mobile TOC Toggle Button - Show on mobile */
    .mobile-toc-toggle {
        display: flex;
        bottom: 5rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }

    /* Mobile TOC Overlay */
    .article-toc.mobile-visible {
        display: block;
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        max-height: 100vh;
        background: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(20px);
        border: none;
        border-radius: 0;
        padding: 2rem;
        z-index: 999;
        overflow-y: auto;
        animation: slideIn 0.3s ease;
    }

    .article-toc.mobile-visible h4 {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .article-toc.mobile-visible ul {
        padding-left: 0;
    }

    .article-toc.mobile-visible li {
        margin-bottom: 1.5rem;
    }

    .article-toc.mobile-visible a {
        font-size: 1.1rem;
        padding: 0.75rem 0;
    }

    @keyframes slideIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.5rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .article-hero-placeholder {
        height: 250px;
    }

    .callout-box {
        flex-direction: column;
    }

    .step {
        flex-direction: column;
        gap: 1rem;
    }
}