/**
 * Multisite Content Hub - Enhanced Frontend Styles
 * WPBakery compatible with multiple layouts and styles
 *
 * @package MultisiteContentHub
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */
:root {
    --mch-accent-color: #0073aa;
    --mch-bg-color: #ffffff;
    --mch-text-color: #1e1e1e;
    --mch-text-muted: #666666;
    --mch-border-color: #e0e0e0;
    --mch-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --mch-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --mch-shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    --mch-shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.16);
    --mch-radius-sm: 4px;
    --mch-radius-md: 8px;
    --mch-radius-lg: 16px;
    --mch-radius-full: 9999px;
    --mch-gap-sm: 1rem;
    --mch-gap-md: 1.5rem;
    --mch-gap-lg: 2rem;
    --mch-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base Container
   ========================================================================== */
.mch-wpb-container {
    margin: 2rem 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

/* ==========================================================================
   Grid Layout
   ========================================================================== */
.mch-grid {
    display: grid;
    gap: var(--mch-gap-md);
}

.mch-cols-1 .mch-grid {
    grid-template-columns: 1fr;
}

.mch-cols-2 .mch-grid {
    grid-template-columns: repeat(2, 1fr);
}

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

.mch-cols-4 .mch-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Gap Variants */
.mch-gap-none .mch-grid {
    gap: 0;
}

.mch-gap-small .mch-grid {
    gap: var(--mch-gap-sm);
}

.mch-gap-medium .mch-grid {
    gap: var(--mch-gap-md);
}

.mch-gap-large .mch-grid {
    gap: var(--mch-gap-lg);
}

/* ==========================================================================
   List Layout
   ========================================================================== */
.mch-list {
    display: flex;
    flex-direction: column;
    gap: var(--mch-gap-md);
}

.mch-list-item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--mch-gap-md);
    background: var(--mch-bg-color);
    border-radius: var(--mch-radius-md);
    overflow: hidden;
}

.mch-list-item .mch-item-image {
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.mch-list-item .mch-item-content {
    padding: 1.5rem 1.5rem 1.5rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ==========================================================================
   Masonry Layout
   ========================================================================== */
.mch-masonry {
    columns: 3;
    column-gap: var(--mch-gap-md);
}

.mch-cols-1 .mch-masonry {
    columns: 1;
}

.mch-cols-2 .mch-masonry {
    columns: 2;
}

.mch-cols-3 .mch-masonry {
    columns: 3;
}

.mch-cols-4 .mch-masonry {
    columns: 4;
}

.mch-masonry .mch-card {
    break-inside: avoid;
    margin-bottom: var(--mch-gap-md);
}

/* ==========================================================================
   Carousel Layout
   ========================================================================== */
.mch-carousel-wrapper {
    position: relative;
    padding: 0 3rem;
}

.mch-carousel {
    overflow: hidden;
}

.mch-carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.mch-carousel-slide {
    flex: 0 0 calc(100% / var(--mch-carousel-cols, 3));
    padding: 0 0.75rem;
    box-sizing: border-box;
}

.mch-carousel-prev,
.mch-carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--mch-bg-color);
    box-shadow: var(--mch-shadow-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--mch-transition);
    z-index: 10;
}

.mch-carousel-prev {
    left: 0;
}

.mch-carousel-next {
    right: 0;
}

.mch-carousel-prev:hover,
.mch-carousel-next:hover {
    background: var(--mch-accent-color);
    color: #fff;
    box-shadow: var(--mch-shadow-lg);
}

.mch-carousel-prev svg,
.mch-carousel-next svg {
    width: 24px;
    height: 24px;
}

.mch-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.mch-carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--mch-border-color);
    border: none;
    cursor: pointer;
    transition: all var(--mch-transition);
}

.mch-carousel-dot.active {
    background: var(--mch-accent-color);
    transform: scale(1.2);
}

/* ==========================================================================
   Card Component
   ========================================================================== */
.mch-card {
    background: var(--mch-bg-color);
    border-radius: var(--mch-radius-md);
    overflow: hidden;
    transition: all var(--mch-transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.mch-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.mch-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.mch-card-image a {
    display: block;
    height: 100%;
}

.mch-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Card Content Elements
   ========================================================================== */
.mch-card-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.mch-category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--mch-accent-color), color-mix(in srgb, var(--mch-accent-color) 80%, #000));
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--mch-radius-full);
}

.mch-card-title {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
}

.mch-card-title a {
    color: var(--mch-text-color);
    text-decoration: none;
    background-image: linear-gradient(var(--mch-accent-color), var(--mch-accent-color));
    background-position: 0 100%;
    background-repeat: no-repeat;
    background-size: 0 2px;
    transition: background-size var(--mch-transition), color var(--mch-transition);
}

.mch-card-title a:hover {
    color: var(--mch-accent-color);
    background-size: 100% 2px;
}

.mch-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--mch-text-muted);
}

.mch-meta-date::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 0.25rem;
    vertical-align: -3px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z'/%3E%3C/svg%3E");
}

.mch-meta-author::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 0.25rem;
    vertical-align: -3px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z'/%3E%3C/svg%3E");
}

.mch-card-excerpt {
    color: var(--mch-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    flex: 1;
}

.mch-card-footer {
    margin-top: auto;
}

.mch-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--mch-accent-color);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border: 2px solid var(--mch-accent-color);
    border-radius: var(--mch-radius-full);
    transition: all var(--mch-transition);
}

.mch-read-more svg {
    width: 16px;
    height: 16px;
    transition: transform var(--mch-transition);
}

.mch-read-more:hover {
    background: var(--mch-accent-color);
    color: #fff;
}

.mch-read-more:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Style Variants
   ========================================================================== */

/* Modern (default) */
.mch-style-modern .mch-card {
    box-shadow: var(--mch-shadow-sm);
}

.mch-style-modern .mch-card:hover {
    box-shadow: var(--mch-shadow-lg);
}

/* Classic */
.mch-style-classic .mch-card {
    border: 1px solid var(--mch-border-color);
}

.mch-style-classic .mch-category-badge {
    background: transparent;
    color: var(--mch-accent-color);
    border: 1px solid var(--mch-accent-color);
}

/* Minimal */
.mch-style-minimal .mch-card {
    background: transparent;
    border-radius: 0;
}

.mch-style-minimal .mch-card-image {
    border-radius: var(--mch-radius-md);
}

.mch-style-minimal .mch-card-body {
    padding: 1rem 0;
}

/* Overlay */
.mch-style-overlay .mch-card {
    position: relative;
}

.mch-style-overlay .mch-card-image {
    aspect-ratio: 3/4;
}

.mch-style-overlay .mch-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem 1.5rem 1.5rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.5) 60%, transparent 100%);
    color: #fff;
}

.mch-style-overlay .mch-card-title a {
    color: #fff;
}

.mch-style-overlay .mch-card-meta {
    color: rgba(255, 255, 255, 0.8);
}

.mch-style-overlay .mch-card-excerpt {
    color: rgba(255, 255, 255, 0.9);
}

.mch-style-overlay .mch-read-more {
    color: #fff;
    border-color: #fff;
}

.mch-style-overlay .mch-read-more:hover {
    background: #fff;
    color: var(--mch-accent-color);
}

/* Bordered */
.mch-style-bordered .mch-card {
    border: 2px solid var(--mch-text-color);
    background: transparent;
}

.mch-style-bordered .mch-card:hover {
    border-color: var(--mch-accent-color);
    background: var(--mch-bg-color);
}

/* Elevated */
.mch-style-elevated .mch-card {
    box-shadow: var(--mch-shadow-md);
    transform: translateY(0);
}

.mch-style-elevated .mch-card:hover {
    box-shadow: var(--mch-shadow-xl);
    transform: translateY(-8px);
}

/* ==========================================================================
   Border Radius Variants
   ========================================================================== */
.mch-radius-none .mch-card,
.mch-radius-none .mch-card-image {
    border-radius: 0;
}

.mch-radius-small .mch-card {
    border-radius: var(--mch-radius-sm);
}

.mch-radius-small .mch-card-image {
    border-radius: var(--mch-radius-sm) var(--mch-radius-sm) 0 0;
}

.mch-radius-medium .mch-card {
    border-radius: var(--mch-radius-md);
}

.mch-radius-medium .mch-card-image {
    border-radius: var(--mch-radius-md) var(--mch-radius-md) 0 0;
}

.mch-radius-large .mch-card {
    border-radius: var(--mch-radius-lg);
}

.mch-radius-large .mch-card-image {
    border-radius: var(--mch-radius-lg) var(--mch-radius-lg) 0 0;
}

.mch-radius-full .mch-card {
    border-radius: 24px;
}

.mch-radius-full .mch-card-image {
    border-radius: 24px 24px 0 0;
}

/* ==========================================================================
   Shadow Variants
   ========================================================================== */
.mch-shadow-none .mch-card {
    box-shadow: none;
}

.mch-shadow-small .mch-card {
    box-shadow: var(--mch-shadow-sm);
}

.mch-shadow-medium .mch-card {
    box-shadow: var(--mch-shadow-md);
}

.mch-shadow-large .mch-card {
    box-shadow: var(--mch-shadow-lg);
}

/* ==========================================================================
   Hover Effects
   ========================================================================== */
.mch-hover-lift .mch-card:hover {
    transform: translateY(-8px);
}

.mch-hover-zoom .mch-card:hover .mch-card-image img {
    transform: scale(1.1);
}

.mch-hover-glow .mch-card:hover {
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--mch-accent-color) 30%, transparent),
        var(--mch-shadow-lg);
}

.mch-hover-border .mch-card {
    border: 2px solid transparent;
}

.mch-hover-border .mch-card:hover {
    border-color: var(--mch-accent-color);
}

/* ==========================================================================
   Animations
   ========================================================================== */
.mch-animation-fade-in .mch-item {
    opacity: 0;
    animation: mchFadeIn 0.6s ease forwards;
}

.mch-animation-slide-up .mch-item {
    opacity: 0;
    transform: translateY(30px);
    animation: mchSlideUp 0.6s ease forwards;
}

.mch-animation-slide-left .mch-item {
    opacity: 0;
    transform: translateX(30px);
    animation: mchSlideLeft 0.6s ease forwards;
}

.mch-animation-scale .mch-item {
    opacity: 0;
    transform: scale(0.9);
    animation: mchScale 0.6s ease forwards;
}

.mch-animation-stagger .mch-item {
    opacity: 0;
    transform: translateY(20px);
    animation: mchStagger 0.5s ease forwards;
}

.mch-animation-stagger .mch-item[data-index="0"] {
    animation-delay: 0s;
}

.mch-animation-stagger .mch-item[data-index="1"] {
    animation-delay: 0.1s;
}

.mch-animation-stagger .mch-item[data-index="2"] {
    animation-delay: 0.2s;
}

.mch-animation-stagger .mch-item[data-index="3"] {
    animation-delay: 0.3s;
}

.mch-animation-stagger .mch-item[data-index="4"] {
    animation-delay: 0.4s;
}

.mch-animation-stagger .mch-item[data-index="5"] {
    animation-delay: 0.5s;
}

.mch-animation-stagger .mch-item[data-index="6"] {
    animation-delay: 0.6s;
}

.mch-animation-stagger .mch-item[data-index="7"] {
    animation-delay: 0.7s;
}

@keyframes mchFadeIn {
    to {
        opacity: 1;
    }
}

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

@keyframes mchSlideLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes mchScale {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* ==========================================================================
   Empty & Error States
   ========================================================================== */
.mch-empty {
    padding: 3rem;
    text-align: center;
    color: var(--mch-text-muted);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--mch-radius-lg);
    font-size: 1.1rem;
}

.mch-error {
    padding: 1.5rem;
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: var(--mch-radius-md);
    color: #856404;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .mch-cols-4 .mch-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .mch-cols-4 .mch-masonry {
        columns: 3;
    }
}

@media (max-width: 768px) {

    .mch-cols-3 .mch-grid,
    .mch-cols-4 .mch-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mch-cols-3 .mch-masonry,
    .mch-cols-4 .mch-masonry {
        columns: 2;
    }

    .mch-list-item {
        grid-template-columns: 1fr;
    }

    .mch-list-item .mch-item-content {
        padding: 1rem;
    }

    .mch-carousel-wrapper {
        padding: 0;
    }

    .mch-carousel-prev,
    .mch-carousel-next {
        width: 36px;
        height: 36px;
    }

    .mch-carousel-slide {
        flex: 0 0 100%;
    }
}

@media (max-width: 480px) {

    .mch-cols-2 .mch-grid,
    .mch-cols-3 .mch-grid,
    .mch-cols-4 .mch-grid {
        grid-template-columns: 1fr;
    }

    .mch-cols-2 .mch-masonry,
    .mch-cols-3 .mch-masonry,
    .mch-cols-4 .mch-masonry {
        columns: 1;
    }

    .mch-card-body {
        padding: 1rem;
    }

    .mch-card-title {
        font-size: 1.1rem;
    }
}

/* ==========================================================================
   Dark Mode Support
   ========================================================================== */
@media (prefers-color-scheme: dark) {
    .mch-wpb-container {
        --mch-bg-color: #1e1e1e;
        --mch-text-color: #f0f0f0;
        --mch-text-muted: #a0a0a0;
        --mch-border-color: #333;
    }

    .mch-carousel-prev,
    .mch-carousel-next {
        background: #2d2d2d;
        color: #f0f0f0;
    }

    .mch-empty {
        background: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    }
}

/* ==========================================================================
   Legacy Support (non-WPBakery shortcode)
   ========================================================================== */
.mch-posts-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--mch-gap-md);
    margin: 2rem 0;
}

.mch-post {
    background: var(--mch-bg-color);
    border-radius: var(--mch-radius-md);
    box-shadow: var(--mch-shadow-sm);
    overflow: hidden;
    transition: all var(--mch-transition);
}

.mch-post:hover {
    transform: translateY(-4px);
    box-shadow: var(--mch-shadow-lg);
}

.mch-post-thumbnail {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

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

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

.mch-post-content {
    padding: 1.5rem;
}

.mch-post-title {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
    line-height: 1.4;
}

.mch-post-title a {
    color: var(--mch-text-color);
    text-decoration: none;
}

.mch-post-title a:hover {
    color: var(--mch-accent-color);
}

.mch-post-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--mch-text-muted);
}

.mch-post-excerpt {
    color: var(--mch-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.mch-post-categories {
    margin-top: 1rem;
}

.mch-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #f0f0f0;
    border-radius: var(--mch-radius-sm);
    font-size: 0.8rem;
    color: #555;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   Theme Inherit Style
   Uses WordPress semantic classes so theme CSS takes precedence.
   Minimal plugin styling - relies on theme's post/entry styles.
   ========================================================================== */

/* Theme Grid Container - minimal layout only */
.mch-style-theme .mch-grid-container,
.mch-style-theme .mch-theme-grid {
    margin: 2rem 0;
}

.mch-style-theme .mch-grid {
    display: grid;
    gap: 2rem;
}

.mch-style-theme.mch-cols-1 .mch-grid {
    grid-template-columns: 1fr;
}

.mch-style-theme.mch-cols-2 .mch-grid {
    grid-template-columns: repeat(2, 1fr);
}

.mch-style-theme.mch-cols-3 .mch-grid {
    grid-template-columns: repeat(3, 1fr);
}

.mch-style-theme.mch-cols-4 .mch-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Theme List Container */
.mch-style-theme .mch-list-container,
.mch-style-theme .mch-theme-list {
    margin: 2rem 0;
}

/* Theme Card - minimal structural CSS, inherits from theme */
.mch-style-theme .mch-theme-card {
    /* Let theme define background, borders, shadows */
    margin-bottom: 0;
}

/* Theme Card Image - structural only */
.mch-style-theme .mch-card-image,
.mch-style-theme .post-thumbnail {
    overflow: hidden;
    margin-bottom: 1rem;
}

.mch-style-theme .mch-card-image img,
.mch-style-theme .post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* Theme Card Body - inherits entry-content styles */
.mch-style-theme .mch-card-body {
    /* Inherits from theme's .entry-content */
}

/* Category tags in theme mode */
.mch-style-theme .mch-category-tag {
    display: inline-block;
    margin-right: 0.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.85em;
    /* Theme should style .cat-links or similar */
}

/* Theme List Item - horizontal layout */
.mch-style-theme .mch-theme-list-item {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

.mch-style-theme .mch-theme-list-item:last-child {
    border-bottom: none;
}

.mch-style-theme .mch-list-image {
    flex: 0 0 200px;
    max-width: 200px;
}

.mch-style-theme .mch-list-image img {
    width: 100%;
    height: auto;
    display: block;
}

.mch-style-theme .mch-list-content {
    flex: 1;
}

/* Read more - tries to inherit from theme's .more-link */
.mch-style-theme .mch-read-more,
.mch-style-theme .more-link {
    /* Theme styles .more-link */
}

/* Responsive for theme style */
@media (max-width: 768px) {

    .mch-style-theme.mch-cols-3 .mch-grid,
    .mch-style-theme.mch-cols-4 .mch-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mch-style-theme .mch-theme-list-item {
        flex-direction: column;
    }

    .mch-style-theme .mch-list-image {
        flex: none;
        max-width: 100%;
    }
}

@media (max-width: 480px) {

    .mch-style-theme.mch-cols-2 .mch-grid,
    .mch-style-theme.mch-cols-3 .mch-grid,
    .mch-style-theme.mch-cols-4 .mch-grid {
        grid-template-columns: 1fr;
    }
}