/* ==========================================================================
   Reading Progress Bar
   ========================================================================== */

.reading-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: var(--z-progress);
    background-color: transparent;
}

.reading-progress {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    transition: width 50ms linear;
}

/* ==========================================================================
   Next Article CTA
   ========================================================================== */

.next-article {
    display: flex;
    align-items: stretch;
    background-color: var(--color-primary-dark);
    overflow: hidden;
    margin-bottom: var(--space-8);
    transition: all var(--transition-base);
}

.next-article:hover {
    box-shadow: var(--shadow-lg);
}

.next-article__link {
    display: flex;
    align-items: stretch;
    width: 100%;
    color: inherit;
}

.next-article__image {
    width: 200px;
    flex-shrink: 0;
    overflow: hidden;
}

.next-article__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.next-article:hover .next-article__image img {
    transform: scale(1.05);
}

.next-article__image--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-gray-400);
}

.next-article__content {
    flex: 1;
    padding: var(--space-5) var(--space-6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2);
}

.next-article__label {
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
}

.next-article__title {
    font-size: var(--text-lg);
    font-family: var(--font-serif);
    color: var(--color-white);
    line-height: 1.4;
}

.next-article__meta {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
}

@media (max-width: 640px) {
    .next-article__link {
        flex-direction: column;
    }
    .next-article__image {
        width: 100%;
        height: 150px;
    }
}

/* ==========================================================================
   Inline Newsletter CTA
   ========================================================================== */

.inline-newsletter {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    margin: var(--space-6) 0;
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-left: 4px solid var(--color-accent);
    font-family: var(--font-sans);
}

.inline-newsletter__icon {
    flex-shrink: 0;
    color: var(--color-accent);
}

.inline-newsletter__content {
    flex: 1;
}

.inline-newsletter__content strong {
    display: block;
    font-size: var(--text-base);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.inline-newsletter__content p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: 0;
    font-family: var(--font-sans);
    line-height: 1.4;
}

.inline-newsletter__btn {
    flex-shrink: 0;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .inline-newsletter {
        flex-direction: column;
        text-align: center;
    }
    .inline-newsletter__btn {
        width: 100%;
    }
}

/* ==========================================================================
   TOC (Table of Contents)
   ========================================================================== */

.toc {
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-6);
    font-family: var(--font-sans);
}

.toc__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.toc__title {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin: 0;
}

.toc__toggle {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-gray-500);
    border: 1px solid var(--color-gray-300);
    border-radius: 2px;
    background: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.toc__list {
    list-style: decimal;
    padding-left: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toc__item a {
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

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

.toc__item--sub {
    margin-left: var(--space-4);
    list-style-type: lower-alpha;
}

.toc__item--sub a {
    font-size: var(--text-xs);
    color: var(--color-gray-600);
}

/* ==========================================================================
   Single Post
   ========================================================================== */

.single-post__header {
    margin-bottom: var(--space-6);
}

.single-post__categories {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.single-post__title {
    font-size: var(--text-4xl);
    font-family: var(--font-serif);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.single-post__excerpt {
    font-size: var(--text-xl);
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    border-left: 4px solid var(--color-accent);
    padding-left: var(--space-4);
}

.single-post__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    border-top: 1px solid var(--color-gray-200);
    border-bottom: 1px solid var(--color-gray-200);
}

.single-post__author-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.single-post__avatar {
    flex-shrink: 0;
}

.single-post__avatar img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.single-post__author-name {
    font-weight: 700;
    color: var(--color-primary);
    font-size: var(--text-base);
}

.single-post__author-name:hover {
    color: var(--color-primary-light);
}

/* Share buttons */
.single-post__share {
    display: flex;
    gap: var(--space-2);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-2px);
    color: var(--color-white);
}

.share-btn--facebook { background-color: #1877f2; }
.share-btn--facebook:hover { background-color: #0d65d9; }
.share-btn--twitter { background-color: #0a0a0a; }
.share-btn--twitter:hover { background-color: #333; }
.share-btn--whatsapp { background-color: #25d366; }
.share-btn--whatsapp:hover { background-color: #1fb855; }

/* Featured image */
.single-post__featured-image {
    margin-bottom: var(--space-6);
    overflow: hidden;
}

.single-post__featured-image img {
    width: 100%;
    height: auto;
}

/* Post content */
.single-post__content {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-gray-800);
    margin-bottom: var(--space-8);
}

.single-post__content h2 {
    font-family: var(--font-sans);
    font-size: var(--text-2xl);
    margin: var(--space-8) 0 var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-gray-200);
}

.single-post__content h3 {
    font-family: var(--font-sans);
    font-size: var(--text-xl);
    margin: var(--space-6) 0 var(--space-3);
}

.single-post__content p {
    margin-bottom: var(--space-5);
}

.single-post__content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.single-post__content a:hover {
    color: var(--color-accent-dark);
}

.single-post__content blockquote {
    border-left: 4px solid var(--color-accent);
    padding: var(--space-4) var(--space-6);
    margin: var(--space-6) 0;
    background-color: var(--color-gray-50);
    font-style: italic;
    color: var(--color-gray-700);
}

.single-post__content ul,
.single-post__content ol {
    padding-left: var(--space-6);
    margin-bottom: var(--space-5);
}

.single-post__content ul {
    list-style: disc;
}

.single-post__content ol {
    list-style: decimal;
}

.single-post__content li {
    margin-bottom: var(--space-2);
}

.single-post__content img {
    border-radius: 2px;
    margin: var(--space-4) 0;
}

.single-post__content figure {
    margin: var(--space-6) 0;
}

.single-post__content figcaption {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    text-align: center;
    margin-top: var(--space-2);
}

.single-post__content table {
    margin: var(--space-6) 0;
    border: 1px solid var(--color-gray-200);
}

.single-post__content th,
.single-post__content td {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-gray-200);
    font-family: var(--font-sans);
    font-size: var(--text-base);
}

.single-post__content th {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
}

/* Tags */
.single-post__tags {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    padding: var(--space-4) 0;
    border-top: 1px solid var(--color-gray-200);
    margin-bottom: var(--space-6);
}

.single-post__tags-label {
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.tag-link {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    background-color: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-fast);
}

.tag-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Author box */
.author-box {
    display: flex;
    gap: var(--space-5);
    padding: var(--space-6);
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    margin-bottom: var(--space-8);
}

.author-box__avatar {
    flex-shrink: 0;
}

.author-box__avatar img {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-accent);
}

.author-box__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
    font-weight: 600;
}

.author-box__name {
    display: block;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin: var(--space-1) 0 var(--space-2);
}

.author-box__name:hover {
    color: var(--color-primary-light);
}

.author-box__bio {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: 0;
}

/* Related posts */
.related-posts {
    margin-bottom: var(--space-8);
}

.cards-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

/* Reading time */
.meta__reading-time {
    color: var(--color-gray-500);
}

/* Pagination */
.nav-links {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
}

.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.page-numbers:hover,
.page-numbers.current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}