/* ============================================
   JV POSTS - Styly pro zobrazení příspěvků
   ============================================ */

.jv-posts-container {
    width: 100%;
    margin: 0 auto;
    padding: 0 15px;
}

.jv-posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

/* Tablet - 2 sloupce */
@media (min-width: 768px) {
    .jv-posts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* Desktop - 4 sloupce */
@media (min-width: 1024px) {
    .jv-posts-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
}

/* Karta příspěvku */
.jv-post-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.jv-post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.jv-post-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Thumbnail wrapper */
.jv-post-thumbnail {
    width: 100%;
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
    background: #f5f5f5;
}

.jv-post-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* Video wrapper */
.jv-post-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.jv-post-video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.jv-post-video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Placeholder když není náhled */
.jv-post-no-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e0e0e0;
    color: #999;
    font-size: 14px;
}

/* Obsah příspěvku */
.jv-post-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.jv-post-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px 0;
    line-height: 1.4;
    color: #333;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.jv-post-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 15px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.jv-post-meta {
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.jv-post-meta time {
    font-size: 12px;
    color: #999;
}

/* Tlačítko "Načíst další" */
.jv-posts-load-more-wrapper {
    text-align: center;
    margin-top: 40px;
}

.jv-posts-load-more {
    background: #333;
    color: #fff;
    border: none;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s ease, transform 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.jv-posts-load-more:hover {
    background: #555;
    transform: translateY(-2px);
}

.jv-posts-load-more:active {
    transform: translateY(0);
}

.jv-posts-load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Loading indikátor */
.jv-posts-loading {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 14px;
}

.jv-posts-loading:before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #333;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
    vertical-align: middle;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responzivní úpravy */
@media (max-width: 767px) {
    .jv-posts-container {
        padding: 0 10px;
    }
    
    .jv-posts-grid {
        gap: 20px;
    }
    
    .jv-post-content {
        padding: 15px;
    }
    
    .jv-post-title {
        font-size: 16px;
    }
    
    .jv-post-excerpt {
        font-size: 13px;
    }
    
    .jv-posts-load-more {
        padding: 12px 30px;
        font-size: 14px;
        width: 100%;
        max-width: 300px;
    }
}