/**
 * Single Post Styles
 * Complete styles using design system variables
 *
 * @package RevBridge
 * @since 2.0.0
 */

/* ===================================
   SINGLE CONTAINER
   =================================== */

.single-container {
    padding: var(--spacing-3) 0;
    background-color: var(--color-gray-50);
}

/* ===================================
   SINGLE LAYOUT
   =================================== */

.single-layout {
    display: grid;
    grid-template-columns: 1fr 18.75rem; /* 300px - consider adding to variables if needed */
    gap: var(--spacing-8);
    align-items: start;
}

.single-main {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-base);
    overflow: hidden;
}

.single-sidebar {
    position: sticky;
    top: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

/* ===================================
   SINGLE POST TITLE SECTION
   =================================== */

.single-title-section {
    padding: var(--spacing-5) var(--spacing-5) 0;
}

.single-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-4) 0;
    line-height: var(--line-height-tight);
}

/* ===================================
   SINGLE META
   =================================== */

.single-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    align-items: center;
    margin: var(--spacing-4) 0;
    padding: var(--spacing-3) var(--spacing-5);
    background-color: var(--color-gray-50);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.single-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.single-meta a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-medium) var(--ease-out);
}

.single-meta a:hover {
    color: var(--color-primary-dark);
}

/* ===================================
   SINGLE EXCERPT
   =================================== */

.single-excerpt {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
    font-style: italic;
    padding: var(--spacing-4) var(--spacing-5) var(--spacing-2) var(--spacing-5);
    border-top: var(--border-width-1) solid var(--color-gray-200);
    margin-top: var(--spacing-5);
}

/* ===================================
   SINGLE CONTENT
   =================================== */

.single-content {
    padding: 0 var(--spacing-5) var(--spacing-5);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-gray-700);
}

.single-content h1,
.single-content h2,
.single-content h3,
.single-content h4,
.single-content h5,
.single-content h6 {
    color: var(--color-gray-800);
    margin: var(--spacing-8) 0 var(--spacing-4) 0;
    font-weight: var(--font-weight-semibold);
}

.single-content h2 {
    font-size: var(--font-size-3xl);
    border-bottom: var(--border-width-2) solid var(--color-primary);
    padding-bottom: var(--spacing-3);
}

.single-content h3 {
    font-size: var(--font-size-2xl);
}

.single-content p {
    margin-bottom: var(--spacing-1);
    margin-top: var(--spacing-1);
}

.single-content ul,
.single-content ol {
    margin: var(--spacing-5) 0;
    padding-left: var(--spacing-8);
}

.single-content li {
    margin-bottom: var(--spacing-2);
}

.single-content blockquote {
    border-left: var(--border-width-4) solid var(--color-primary);
    padding: var(--spacing-5) var(--spacing-8);
    margin: var(--spacing-8) 0;
    background: var(--color-gray-50);
    border-radius: var(--border-radius-base);
    font-style: italic;
    color: var(--color-gray-600);
}

.single-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    margin: var(--spacing-5) 0;
}

.single-content a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-medium) var(--ease-out);
}

.single-content a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ===================================
   AUTHOR BIO
   =================================== */

.author-bio {
    display: flex;
    gap: var(--spacing-5);
    padding: var(--spacing-8) var(--spacing-10);
    background: var(--color-gray-50);
    border-top: var(--border-width-1) solid var(--color-gray-200);
}

.author-avatar img {
    width: 5rem; /* 80px - consider adding to variables if needed */
    height: 5rem; /* 80px - consider adding to variables if needed */
    border-radius: var(--border-radius-full);
    object-fit: cover;
}

.author-info h3 {
    margin: 0 0 var(--spacing-3) 0;
    color: var(--color-gray-800);
    font-size: var(--font-size-xl);
}

.author-info p {
    margin: 0 0 var(--spacing-4) 0;
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

.author-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-medium) var(--ease-out);
}

.author-link:hover {
    color: var(--color-primary-dark);
}

/* ===================================
   RELATED POSTS
   =================================== */

.related-posts {
    padding: var(--spacing-5);
    border-top: var(--border-width-1) solid var(--color-gray-200);
}

.related-posts h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-gray-800);
    margin: 0 0 var(--spacing-8) 0;
    text-align: center;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr)); /* 400px - consider adding to variables if needed */
    gap: var(--spacing-6);
}

.related-post {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium) var(--ease-out), box-shadow var(--transition-medium) var(--ease-out);
    display: flex;
    flex-direction: row;
    align-items: stretch;
}

.related-post:hover {
    transform: translateY(calc(var(--spacing-1) * -1.25));
    box-shadow: var(--shadow-xl);
}

.related-post-thumbnail {
    flex: 0 0 7.5rem; /* 120px - consider adding to variables if needed */
    overflow: hidden;
    border-radius: var(--border-radius-lg) 0 0 var(--border-radius-lg);
}

.related-post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium) var(--ease-out);
}

.related-post:hover .related-post-thumbnail img {
    transform: scale(1.05);
}

.related-post-content {
    padding: var(--spacing-5);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px;
}

.related-post-title {
    margin: 0 0 var(--spacing-3) 0;
    font-size: var(--font-size-lg);
    line-height: var(--line-height-snug);
    flex: 1;
}

.related-post-title a {
    color: var(--color-gray-800);
    text-decoration: none;
    transition: color var(--transition-medium) var(--ease-out);
}

.related-post-title a:hover {
    color: var(--color-primary);
}

.related-post-excerpt {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    margin: 0 0 var(--spacing-4) 0;
    flex: 1;
}

.related-post-date {
    color: var(--color-gray-400);
    font-size: var(--font-size-xs);
    margin-top: auto;
}

/* ===================================
   POST NAVIGATION
   =================================== */

.post-navigation {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-8) var(--spacing-10);
    background: var(--color-gray-50);
    border-top: var(--border-width-1) solid var(--color-gray-200);
}

.nav-previous,
.nav-next {
    flex: 1;
}

.nav-next {
    text-align: right;
}

.post-navigation a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-medium) var(--ease-out);
}

.post-navigation a:hover {
    color: var(--color-primary-dark);
}

/* ===================================
   SIDEBAR WIDGETS
   =================================== */

.sidebar-widget {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-base);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    border: var(--border-width-1) solid var(--color-gray-100);
}

.widget-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-4) 0;
    padding-bottom: var(--spacing-2);
    border-bottom: var(--border-width-2) solid var(--color-gray-200);
}

/* ===================================
   SIDEBAR RELATED POSTS
   =================================== */

.sidebar-related-posts .widget-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0 0 var(--spacing-5) 0;
    padding-bottom: var(--spacing-3);
    border-bottom: var(--border-width-2) solid var(--color-primary);
}

.sidebar-posts-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.sidebar-post-item {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-post-link {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: var(--border-width-1) solid var(--color-gray-200);
}

.sidebar-post-link:hover {
    background-color: var(--color-gray-50);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.sidebar-post-thumb {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    overflow: hidden;
    border-radius: var(--border-radius-md);
}

.sidebar-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.sidebar-post-link:hover .sidebar-post-thumb img {
    transform: scale(1.1);
}

.sidebar-post-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-1);
}

.sidebar-post-title {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.sidebar-post-link:hover .sidebar-post-title {
    color: var(--color-primary);
}

.sidebar-post-date {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ===================================
   CATEGORIES SIDEBAR
   =================================== */

.single-sidebar .categories-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.single-sidebar .category-item {
    margin-bottom: var(--spacing-3);
}

.single-sidebar .category-item a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    color: var(--color-gray-700);
    text-decoration: none;
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-base);
    transition: all var(--transition-fast);
    border: var(--border-width-1) solid var(--color-gray-100);
}

.single-sidebar .category-item a:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(calc(var(--spacing-1) * -0.5));
    border-color: var(--color-primary);
}

.single-sidebar .category-count {
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

/* ===================================
   EXCERPT BLOCK STYLES
   =================================== */

.wp-block-post-excerpt__excerpt {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    margin-top: calc(var(--spacing-4) * -1);
    margin-bottom: var(--spacing-6);
    padding: 0;
    background-color: transparent;
    border: none;
    border-radius: 0;
    font-style: normal;
}

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

@media (max-width: 1024px) {
    .single-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

    .single-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .single-container {
        padding: var(--spacing-2) 0;
    }

    .single-title-section {
        padding: var(--spacing-3) var(--spacing-4) var(--spacing-2) var(--spacing-4);
    }

    .single-content {
        padding: var(--spacing-2) var(--spacing-4) var(--spacing-4) var(--spacing-4);
    }

    .related-posts {
        padding: var(--spacing-4);
    }

    .single-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-3);
    }

    .single-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-2);
        padding: var(--spacing-3) var(--spacing-4);
    }

    .author-bio {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-6);
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-5);
    }

    .related-post {
        flex-direction: column;
    }

    .related-post-thumbnail {
        flex: none;
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    }

    .related-post-thumbnail img {
        height: 200px;
    }

    .related-post-content {
        min-height: auto;
    }

    .post-navigation {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
        padding: var(--spacing-6);
    }

    .nav-next {
        text-align: center;
    }

    .wp-block-post-excerpt__excerpt {
        font-size: var(--font-size-base);
        padding: 0;
        margin-top: calc(var(--spacing-4) * -1);
        margin-bottom: var(--spacing-5);
    }
}

@media (max-width: 480px) {
    .single-title-section {
        padding: var(--spacing-2) var(--spacing-3) var(--spacing-1) var(--spacing-3);
    }

    .single-content {
        padding: var(--spacing-1) var(--spacing-3) var(--spacing-3) var(--spacing-3);
    }

    .single-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-2);
    }

    .single-content {
        font-size: var(--font-size-lg);
    }

    .author-bio {
        padding: var(--spacing-5);
    }

    .post-navigation {
        padding: var(--spacing-5);
    }
}