/* MAIN ARTICLE */
p {
    text-align: justify;
}

/* ========== Header Navigation ========== */
.blog-header {
    padding: var(--spacing-xs) 0 var(--spacing-xs) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    animation: slideDown 0.6s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#header-placeholder {
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-nav {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-lg);
}

.back-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-blue-deep);
    text-decoration: none;
    font-weight: 700;
    transition: all var(--transition-normal);
    padding: var(--spacing-sm) 0;
    border-radius: var(--radius-lg);
}

.back-button:hover {
    /* background: rgba(48, 119, 178, 0.1); */
    transform: translateX(-4px);
}

.back-arrow {
    font-size: 1.2rem;
}

/* ========== Article Container ========== */
.article-container {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* ========== Hero Section ========== */
.article-hero {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out;

    gap: 48px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.meta {
    flex: 1 1 320px;
    min-width: 0;
}

.article-image-wrapper {
    position: relative;
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    height: 400px;
    flex: 1 1 420px;
    min-width: 0;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-blue) 100%);
}

.article-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.article-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 168, 181, 0.1) 0%, rgba(30, 58, 95, 0.1) 100%);
    color: var(--primary-teal);
    font-size: 3rem;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(0, 168, 181, 0.1);
    color: var(--primary-teal);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9rem;
}

.article-title {
    font-size: clamp(1.75rem, 3.4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.article-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    align-items: start;
}

@media (min-width: 1024px) {
    .article-body {
        grid-template-columns: 1fr 280px;
    }
}

.article-sidebar {
    position: sticky;
    top: 120px;
    height: fit-content;
    padding: 0 0 2rem 2rem;
}

.article-author-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--secondary-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.author-details h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.author-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========== Article Content ========== */
.article-content {
    /* background: white; */
    /* padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color); */
    /* margin-bottom: var(--spacing-2xl); */
    line-height: 1.8;
    overflow-wrap: anywhere;
}

.article-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-size: 1.05rem;
}

.article-content p:first-letter {
    font-size: 1.1em;
    font-weight: 600;
}

.article-content h2 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--primary-teal);
    display: inline-block;
    scroll-margin-top: 120px;
}

/* Support the inline "image-placeholder-container" blocks used in articles */
.image-placeholder-container {
    flex-wrap: wrap;
}

.image-placeholder-container img {
    flex: 1 1 260px;
    min-width: 0;
    max-width: 100%;
    height: auto;
}

/* ========== Responsive (Article Pages) ========== */
@media (max-width: 1023px) {

    /* Hide the headings sidebar (TOC) on tablets/phones for easier reading */
    .article-sidebar {
        display: none;
    }

    .header-nav {
        padding: 0 var(--spacing-md);
    }

    .article-container {
        padding: var(--spacing-lg) var(--spacing-lg);
    }

    .article-hero {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-lg);
    }

    .article-image-wrapper {
        height: auto;
        margin-bottom: var(--spacing-md);
    }

    .article-image-wrapper img {
        height: auto;
    }

    .meta {
        max-height: fit-content;
    }

    .article-hero {
        margin-bottom: 0;
    }

    .image-placeholder-container img {
        max-width: 100% !important;
    }
}

@media (max-width: 768px) {
    .article-meta {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .reading-time {
        font-size: 0.85rem;
        padding: 0.5rem 0.75rem;
    }

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

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

    .article-content h3 {
        font-size: 1.15rem;
    }

    .share-section {
        padding: var(--spacing-lg);
        flex-direction: column;
        align-items: flex-start;
    }

    .meta {
        max-height: fit-content;
    }

    .article-hero {
        margin-bottom: 0;
    }

    .article-container {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

@media (max-width: 600px) {
    .article-container {
        padding: var(--spacing-md) var(--spacing-xl);
    }

    /* Let the wrapper follow the stretched image height */
    .article-image-wrapper {
        max-height: clamp(200px, 40vw, 300px);
    }

    .article-image-wrapper img {
        width: 100%;
        height: auto;
    }

    /* Make inline content images readable on phones */
    .image-placeholder-container {
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .image-placeholder-container img {
        flex-basis: 100%;
        max-width: 100% !important;
    }

    /* Slightly reduce type scale for small screens (but keep it readable) */
    .article-content p {
        font-size: 0.98rem;
        line-height: 1.75;
    }

    .article-content h2 {
        font-size: 1.4rem;
    }

    .article-content h3 {
        font-size: 1.1rem;
    }

    .meta {
        max-height: fit-content;
    }

    .article-hero {
        margin-bottom: 0;
    }
}

@media (max-width: 420px) {
    .article-content h2 {
        font-size: 1.32rem;
    }

    .article-image-wrapper {
        max-height: 200px;
    }

    .meta {
        max-height: fit-content;
    }

    .article-hero {
        margin-bottom: 0;
    }

    .article-container {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

@media (max-width: 400px) {
    .article-title {
        font-size: 1.65rem;
    }

    .article-content p {
        font-size: 0.96rem;
    }

    .image-placeholder-container img {
        flex-basis: 100%;
        max-width: 100% !important;
    }

    .meta {
        max-height: fit-content;
    }

    .article-hero {
        margin-bottom: 0;
    }
}

.article-content h3 {
    color: var(--primary-teal);
    font-size: 1.3rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    scroll-margin-top: 120px;
}

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

.article-content a {
    color: var(--primary-teal);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: all var(--transition-normal);
}

.article-content a:hover {
    text-decoration: underline;
    text-decoration-color: var(--primary-teal);
    text-decoration-thickness: 2px;
}

.article-content a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-teal);
    transition: width var(--transition-normal);
}

.article-content a:hover::after {
    width: 100%;
}

/* Highlight boxes */
.highlight-box {
    background: linear-gradient(135deg, rgba(0, 168, 181, 0.05) 0%, rgba(30, 58, 95, 0.05) 100%);
    border-left: 4px solid var(--primary-teal);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--primary-blue);
    font-size: 1.05rem;
}

.highlight-box::before {
    content: '"';
    font-size: 3rem;
    opacity: 0.1;
    position: absolute;
    line-height: 0.5;
}

/* ========== Share Section ========== */
.share-section {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    animation: slideInUp 0.8s ease-out 0.4s both;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.share-text {
    color: var(--text-primary);
    font-weight: 600;
    margin-right: var(--spacing-md);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--secondary-gray);
    color: var(--primary-teal);
    text-decoration: none;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.share-button:hover {
    background: var(--primary-teal);
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 168, 181, 0.3);
}

.copy-link {
    background: white;
    color: var(--primary-teal);
    border: 2px solid var(--primary-teal);
}

.copy-link:hover {
    background: var(--primary-teal);
    color: white;
}

/* ========== Related Articles ========== */
.related-section {
    margin-top: var(--spacing-2xl);
}

.related-title {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.related-title::before {
    content: '📚';
    font-size: 1.5rem;
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.related-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.related-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.related-card-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    font-weight: 700;
}

.related-card-content {
    padding: var(--spacing-lg);
}

.related-card-content h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.related-card-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.related-card-link {
    color: var(--primary-teal);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-normal);
}

.related-card-link:hover {
    gap: var(--spacing-sm);
}

/* ========== Footer ========== */
.article-footer {
    background: var(--primary-blue);
    color: white;
    padding: var(--spacing-2xl) var(--spacing-xl);
    text-align: center;
    margin-top: var(--spacing-2xl);
    border-radius: var(--radius-lg);
}

.article-footer p {
    margin-bottom: var(--spacing-md);
}

.back-to-blog-btn {
    display: inline-block;
    background: var(--primary-teal);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    margin-top: var(--spacing-lg);
}

.back-to-blog-btn:hover {
    background: #00938f;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 168, 181, 0.3);
}


/* ========== TOC Styles ========== */
.article-sidebar .toc {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;

    /* Soft layered shadow */
    /* box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.04),
        0 8px 24px rgba(0, 0, 0, 0.06); */

    border: 1px solid rgba(0, 0, 0, 0.05);

    /* subtle texture feel */
    backdrop-filter: blur(6px);
}

.toc h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    display: block;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;

    text-decoration: none;
    font-size: 0.95rem;
    color: var(--text-primary);

    transition: all 0.25s ease;
}

.toc a:hover {
    background: rgba(0, 168, 181, 0.08);
    color: var(--primary-teal);
    transform: translateX(4px);
}

.toc a.active {
    background: rgba(0, 168, 181, 0.12);
    color: var(--primary-teal);
    font-weight: 600;
}

/* ========== Dark Mode Styles ========== */
.dark-mode .back-button:hover {
    background: rgba(var(--primary-teal-rgb), 0.1);
}

.dark-mode .article-image-placeholder {
    background: linear-gradient(135deg, rgba(var(--primary-teal-rgb), 0.1) 0%, rgba(22, 36, 58, 0.1) 100%);
    color: var(--primary-teal);
}

.dark-mode .reading-time {
    background: rgba(var(--primary-teal-rgb), 0.15);
    color: var(--primary-teal);
}

.dark-mode .article-title {
    color: var(--text-primary);
}

.dark-mode .article-author-info,
.dark-mode .article-content,
.dark-mode .share-section,
.dark-mode .related-card {
    background: var(--secondary-light);
    /* border-color: var(--border-color); */
}

.dark-mode .author-avatar {
    background: var(--primary-blue-deep);
}

.dark-mode .author-details h4,
.dark-mode .author-details p {
    color: var(--text-secondary);
}

.dark-mode .article-content h2 {
    color: var(--primary-teal);
    border-bottom-color: var(--primary-teal);
}

.dark-mode .article-content h3 {
    color: var(--accent-purple);
}

.dark-mode .article-content strong {
    color: var(--primary-teal);
}

.dark-mode .article-content a {
    color: var(--accent-cyan);
}

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

.dark-mode .article-content a::after {
    background: var(--accent-cyan);
}

.dark-mode .highlight-box {
    background: linear-gradient(135deg, rgba(var(--primary-teal-rgb), 0.05) 0%, rgba(143, 158, 255, 0.05) 100%);
    border-left-color: var(--accent-purple);
    color: var(--text-primary);
}

.dark-mode .share-text {
    color: var(--text-primary);
}

.dark-mode .share-button {
    background: var(--secondary-gray);
    color: var(--primary-teal);
}

.dark-mode .share-button:hover {
    background: var(--primary-teal);
    color: var(--primary-dark);
}

.dark-mode .copy-link {
    background: var(--primary-blue);
    color: var(--primary-teal);
    border-color: var(--primary-teal);
}

.dark-mode .copy-link:hover {
    background: var(--primary-teal);
    color: var(--primary-dark);
}

.dark-mode .related-title {
    color: var(--text-primary);
}

.dark-mode .related-card-image {
    background: linear-gradient(135deg, var(--primary-blue-deep) 0%, var(--primary-blue) 100%);
}

.dark-mode .related-card-content h3 {
    color: var(--primary-teal);
}

.dark-mode .related-card-content p {
    color: var(--text-secondary);
}

.dark-mode .related-card-link {
    color: var(--accent-cyan);
}

.dark-mode .article-footer {
    background: var(--primary-blue-deep);
}

.dark-mode .back-to-blog-btn {
    background: var(--primary-teal);
    color: var(--primary-dark);
}

.dark-mode .back-to-blog-btn:hover {
    background: var(--accent-cyan);
}

.dark-mode .article-sidebar .toc {
    background: var(--secondary-light);
    border: 1px solid rgba(255, 255, 255, 0.05);

    /* box-shadow:
        0 1px 2px rgba(0,0,0,0.3),
        0 8px 24px rgba(0,0,0,0.4); */
}

.dark-mode .toc h3 {
    color: var(--text-primary);
}

@media (prefers-color-scheme: dark) {
    .blog-header {
        backdrop-filter: blur(10px) saturate(180%);
        background-color: var(--secondary-light);
    }

    .back-button:hover {
        background: rgba(var(--primary-teal-rgb), 0.1);
    }

    .article-image-placeholder {
        background: linear-gradient(135deg, rgba(var(--primary-teal-rgb), 0.1) 0%, rgba(22, 36, 58, 0.1) 100%);
        color: var(--primary-teal);
    }

    .reading-time {
        background: rgba(var(--primary-teal-rgb), 0.15);
        color: var(--primary-teal);
    }

    .article-title {
        color: var(--text-primary);
    }

    .article-author-info,
    .article-content,
    .share-section,
    .related-card {
        background: var(--secondary-light);
        border-color: var(--border-color);
    }

    .author-avatar {
        background: var(--primary-blue-deep);
    }

    .author-details h4,
    .author-details p {
        color: var(--text-secondary);
    }

    .article-content h2 {
        color: var(--primary-teal);
        border-bottom-color: var(--primary-teal);
    }

    .article-content h3 {
        color: var(--accent-purple);
    }

    .article-content strong {
        color: var(--primary-teal);
    }

    .article-content a {
        color: var(--accent-cyan);
    }

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

    .article-content a::after {
        background: var(--accent-cyan);
    }

    .highlight-box {
        background: linear-gradient(135deg, rgba(var(--primary-teal-rgb), 0.05) 0%, rgba(143, 158, 255, 0.05) 100%);
        border-left-color: var(--accent-purple);
        color: var(--text-primary);
    }

    .share-text {
        color: var(--text-primary);
    }

    .share-button {
        background: var(--secondary-gray);
        color: var(--primary-teal);
    }

    .share-button:hover {
        background: var(--primary-teal);
        color: var(--primary-dark);
    }

    .copy-link {
        background: var(--primary-blue);
        color: var(--primary-teal);
        border-color: var(--primary-teal);
    }

    .copy-link:hover {
        background: var(--primary-teal);
        color: var(--primary-dark);
    }

    .related-title {
        color: var(--text-primary);
    }

    .related-card-image {
        background: linear-gradient(135deg, var(--primary-blue-deep) 0%, var(--primary-blue) 100%);
    }

    .related-card-content h3 {
        color: var(--primary-teal);
    }

    .related-card-content p {
        color: var(--text-secondary);
    }

    .related-card-link {
        color: var(--accent-cyan);
    }

    .article-footer {
        background: var(--primary-blue-deep);
    }

    .back-to-blog-btn {
        background: var(--primary-teal);
        color: var(--primary-dark);
    }

    .back-to-blog-btn:hover {
        background: var(--accent-cyan);
    }
}

/* END OF MAIN ARTICLE */

/* FUNDIC HEIGHT */
.image-placeholder-container img {
    max-width: 70%;
    height: auto;
    border-radius: var(--radius-md);
}

.toc-item-wrapper {
    display: flex;
    align-items: center;
}

.toc-toggle {
    cursor: pointer;
    /* padding-right: 10px; */
    user-select: none;
    display: inline-block;
    transition: transform 0.2s;
}

.toc-toggle.open {
    transform: rotate(90deg);
}

/* END OF FUNDIC HEIGHT */