/**
 * Modern Blog Design
 * Современный дизайн блога с адаптивной версткой
 */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #01b2ba;
    --primary-hover: #019ba3;
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --text-light: #999;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --border-light: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Hero Section — article-hero style */
.article-hero {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: white;
    padding: 120px 10% 70px;
    position: relative;
    overflow: hidden;
}

.article-hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
    position: relative;
    z-index: 1;
}

.article-hero .meta {
    font-size: 1.05rem;
    color: #aad4de;
    position: relative;
    z-index: 1;
}

/* Container */
.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.125rem;
    color: var(--text-gray);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

/* Blog Card */
.blog-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    cursor: pointer; /* Make entire card clickable - Делаем всю карточку кликабельной */
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #01b2ba 0%, #019ba3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
    position: relative;
    z-index: 1;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

/* Fallback если изображение не загрузилось */
.blog-card-image::before {
    content: '📝';
    font-size: 4rem;
    opacity: 0.3;
    position: absolute;
    z-index: 0;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Скрываем иконку если есть изображение */
.blog-card-image:has(img[src])::before {
    display: none;
}

/* Если изображение скрыто через onerror, показываем градиент */
.blog-card-image img[style*="display: none"] ~ ::before,
.blog-card-image:not(:has(img:not([style*="display: none"])))::before {
    display: block;
}

.blog-card-content {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.blog-card-excerpt {
    font-size: 1rem;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.blog-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.blog-card-link:hover {
    color: var(--primary-hover);
    gap: 12px;
}

.blog-card-link::after {
    content: '→';
    font-size: 1.25rem;
    transition: var(--transition);
}

/* Featured Article Section */
.featured-section {
    background: var(--bg-white);
    padding: 80px 0;
    margin: 60px 0;
}

/* Generated Articles Section */
.generated-articles {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 50px;
    margin: 60px 0;
    box-shadow: var(--shadow-sm);
}

.generated-articles h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: center;
}

.articles-mini-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.article-mini-card {
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer; /* Make entire card clickable - Делаем всю карточку кликабельной */
    display: flex;
    flex-direction: column;
}

.article-mini-card:hover {
    background: #f0f0f0;
    transform: translateY(-4px);
}

.article-mini-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #01b2ba 0%, #019ba3 100%);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.article-mini-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.article-mini-card:hover .article-mini-image img {
    transform: scale(1.05);
}

.article-mini-card h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
}

.article-mini-card h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.article-mini-card h3 a:hover {
    color: var(--primary-hover);
}

.article-mini-card p {
    font-size: 0.9375rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Back Button */
.back-button-container {
    text-align: center;
    margin: 60px 0;
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--bg-white);
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.back-button:hover {
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 25px;
    }
    
    .generated-articles {
        padding: 40px 30px;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 100px 20px 60px;
    }
    
    .blog-hero h1 {
        font-size: 2.5rem;
    }
    
    .blog-hero p {
        font-size: 1.125rem;
    }
    
    .blog-container {
        padding: 40px 15px;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .articles-mini-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .generated-articles {
        padding: 30px 20px;
        margin: 40px 0;
    }
    
    .blog-card-content {
        padding: 20px;
    }
    
    .blog-card-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 80px 15px 50px;
    }
    
    .blog-hero h1 {
        font-size: 2rem;
    }
    
    .blog-hero p {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
    
    .blog-card-image {
        height: 180px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-card {
    animation: fadeInUp 0.6s ease-out;
}

.blog-card:nth-child(1) { animation-delay: 0.1s; }
.blog-card:nth-child(2) { animation-delay: 0.2s; }
.blog-card:nth-child(3) { animation-delay: 0.3s; }
.blog-card:nth-child(4) { animation-delay: 0.4s; }
.blog-card:nth-child(5) { animation-delay: 0.5s; }
.blog-card:nth-child(6) { animation-delay: 0.6s; }

/* Back Button Container - Контейнер кнопки возврата */
.back-button-container {
    text-align: center;
    margin: 60px 0 40px;
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-white);
    color: var(--primary);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid var(--primary);
}

.back-button:hover {
    background: var(--primary);
    color: white;
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
}

/* Blog Filters - Фильтры блога */
.blog-filters {
    background: var(--bg-white);
    padding: 30px;
    margin: 30px auto;
    max-width: 1200px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.filter-select {
    padding: 10px 20px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 0.95rem;
    background: var(--bg-white);
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition);
}

.filter-select:hover,
.filter-select:focus {
    border-color: var(--primary-color);
    outline: none;
}

.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-btn {
    padding: 8px 16px;
    border: 2px solid var(--border-light);
    border-radius: 20px;
    background: var(--bg-white);
    color: var(--text-gray);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tag-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(1, 178, 186, 0.05);
}

.tag-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Blog Card Meta - Метаданные карточек */
.blog-card-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.blog-card-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(1, 178, 186, 0.1);
    color: var(--primary-color);
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card-tags {
    color: var(--text-light);
    font-size: 0.8rem;
}

.article-mini-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
    font-size: 0.8rem;
}

.article-mini-category {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(1, 178, 186, 0.1);
    color: var(--primary-color);
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
}

.article-mini-tags {
    color: var(--text-light);
    font-size: 0.75rem;
}

/* Section Title - Заголовок раздела */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
}

.blog-section {
    margin-bottom: 60px;
}

/* Hidden articles - Скрытые статьи при фильтрации */
.blog-card.hidden,
.article-mini-card.hidden {
    display: none;
}

.blog-section.hidden {
    display: none;
}

/* No Results Message - Сообщение об отсутствии результатов */
.no-results-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-gray);
    font-size: 1.2rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin: 40px auto;
    max-width: 600px;
}