/* Основные стили сайта "Суть ИИ" - с Semantic UI и оптимизацией для чтения */

/* Подключение шрифтов для комфортного чтения */
@import url('https://fonts.googleapis.com/css2?family=Literata:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@400;500;600;700&display=swap');

/* Переменные цветовой схемы - успокаивающая палитра для интеллектуалов */
:root {
    /* Основные цвета - глубокий синий с мягкими акцентами */
    --primary-color: #1e3a5f;
    --primary-light: #2d5a8a;
    --primary-dark: #0f1f33;
    
    /* Акцентный цвет - мягкий бирюзовый */
    --accent-color: #3d8b8b;
    --accent-light: #5aadad;
    
    /* Фоновые цвета - теплые нейтральные */
    --bg-primary: #faf9f7;
    --bg-secondary: #f3f1ed;
    --bg-card: #ffffff;
    
    /* Цвета текста - мягкие для глаз */
    --text-primary: #2c3e50;
    --text-secondary: #5a6c7d;
    --text-muted: #8899a6;
    
    /* Типографика */
    --font-reading: 'Literata', Georgia, 'Times New Roman', serif;
    --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Размеры для чтения */
    --font-size-base: 19px;
    --line-height-reading: 1.75;
    --line-height-heading: 1.3;
    --max-width-reading: 720px;
}

/* Сброс стилей */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Базовые стили */
html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-reading);
    line-height: var(--line-height-reading);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Убираем яркие hero-секции, которые заезжали на контент */
.hero, .page-header {
    background: none !important;
    padding: 0 !important;
    color: inherit !important;
    text-align: left !important;
}

/* Контейнер для контента - полная ширина страницы */
.ui.container {
    max-width: 1200px !important;
    width: 100% !important;
    margin: 0 auto !important;
    padding: 0 2rem !important;
}

/* Контейнер для статей - оптимальная ширина для чтения */
.ui.container.narrow {
    max-width: 900px !important;
    width: 900px !important;
    padding-left: 1.5rem !important;
    padding-right: 1.5rem !important;
}

/* Main content needs padding from header */
.main-content {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
    padding: 0 2rem !important;
    box-sizing: border-box !important;
}

/* Шапка сайта */
.ui.menu.site-menu {
    background: var(--bg-card) !important;
    border: none !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04) !important;
    border-radius: 0 !important;
    padding: 0.75rem 2rem !important;
    position: sticky;
    top: 0;
    z-index: 100;
    margin-bottom: 0 !important;
}

.ui.menu.site-menu .header.item {
    font-family: var(--font-ui) !important;
    font-weight: 600 !important;
    font-size: 1.25rem !important;
    color: var(--primary-color) !important;
    padding: 0 !important;
    margin-right: 1.5rem !important;
}

.ui.menu.site-menu .header.item:hover {
    color: var(--accent-color) !important;
}

.ui.menu.site-menu .link.item {
    font-family: var(--font-ui) !important;
    font-weight: 500 !important;
    color: var(--text-secondary) !important;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease !important;
}

.ui.menu.site-menu .link.item:hover {
    color: var(--primary-color) !important;
    background: transparent !important;
}

.ui.menu.site-menu .right.menu .link.item {
    color: var(--text-secondary) !important;
}

/* Главная секция */
.main-title {
    font-family: var(--font-reading) !important;
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    color: var(--primary-dark) !important;
    line-height: var(--line-height-heading) !important;
    margin-top: 2rem !important;
    margin-bottom: 0.5rem !important;
}

.main-subtitle {
    font-family: var(--font-ui) !important;
    font-size: 1.15rem !important;
    color: var(--text-secondary) !important;
    line-height: 1.6 !important;
    margin-bottom: 3rem !important;
}

/* Секции контента */
.content-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.section-title {
    font-family: var(--font-reading) !important;
    font-size: 1.5rem !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
    margin-bottom: 1rem !important;
    line-height: var(--line-height-heading) !important;
}

.section-description {
    font-size: 1.05rem !important;
    color: var(--text-secondary) !important;
    line-height: var(--line-height-reading) !important;
}

/* Карточки статей - Grid раскладка на всю ширину */
.articles-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 1.5rem !important;
    width: 100% !important;
    max-width: 100% !important;
    justify-content: stretch !important;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
}

/* Контейнер для статей без ограничений ширины */
.full-width-grid {
    max-width: 100% !important;
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
}

/* Карточки внутри grid - растягиваем на всю ширину ячейки */
.articles-grid > .ui.card.article-card,
.articles-grid > article.ui.card.article-card,
.articles-grid > a.ui.card.article-card {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    flex: 1 1 auto !important;
}

.ui.card.article-card {
    background: var(--bg-card) !important;
    border: 1px solid rgba(0,0,0,0.06) !important;
    border-radius: 12px !important;
    padding: 1.5rem !important;
    margin: 0 !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02) !important;
    transition: all 0.25s ease !important;
    cursor: pointer;
    height: 100% !important;
    display: flex !important;
    flex-direction: column !important;
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06) !important;
    border-color: var(--accent-color) !important;
}

.article-card .header {
    font-family: var(--font-reading) !important;
    font-size: 1.2rem !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
    margin-bottom: 0.5rem !important;
    line-height: var(--line-height-heading) !important;
}

.article-card .description {
    font-family: var(--font-reading) !important;
    font-size: 1rem !important;
    color: var(--text-secondary) !important;
    line-height: var(--line-height-reading) !important;
}

/* Теги */
.ui.label.article-tag {
    font-family: var(--font-ui) !important;
    font-size: 0.75rem !important;
    font-weight: 500 !important;
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    padding: 0.4em 0.8em !important;
    border-radius: 6px !important;
    margin-right: 0.5em !important;
    margin-bottom: 0.3em !important;
}

/* Контент статьи - centered с ограничением ширины */
.article-content {
    background: var(--bg-card) !important;
    border-radius: 12px !important;
    padding: 3rem 2.5rem !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03) !important;
    margin-bottom: 3rem !important;
    margin-top: 1.5rem !important;
    max-width: 100% !important;
    width: 100% !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.article-content h1 {
    font-family: var(--font-reading) !important;
    font-size: 2.25rem !important;
    font-weight: 700 !important;
    color: var(--primary-dark) !important;
    line-height: var(--line-height-heading) !important;
    margin-bottom: 2rem !important;
}

.article-content h2 {
    font-family: var(--font-reading) !important;
    font-size: 1.6rem !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
    margin-top: 2.5rem !important;
    margin-bottom: 1rem !important;
    line-height: var(--line-height-heading) !important;
}

.article-content h3 {
    font-family: var(--font-reading) !important;
    font-size: 1.25rem !important;
    font-weight: 600 !important;
    color: var(--text-primary) !important;
    margin-top: 1.75rem !important;
    margin-bottom: 0.75rem !important;
    line-height: var(--line-height-heading) !important;
}

.article-content p {
    font-family: var(--font-reading) !important;
    font-size: 1.05rem !important;
    line-height: var(--line-height-reading) !important;
    color: var(--text-primary) !important;
    margin-bottom: 1.25rem !important;
}

.article-content ul, 
.article-content ol {
    margin-bottom: 1.25rem !important;
    padding-left: 1.5rem !important;
}

.article-content li {
    font-family: var(--font-reading) !important;
    font-size: 1.05rem !important;
    line-height: var(--line-height-reading) !important;
    color: var(--text-primary) !important;
    margin-bottom: 0.5rem !important;
}

.article-content strong {
    font-weight: 600 !important;
    color: var(--primary-color) !important;
}

.article-content a {
    color: var(--accent-color) !important;
    text-decoration: underline !important;
    text-underline-offset: 2px !important;
    transition: color 0.2s ease !important;
}

.article-content a:hover {
    color: var(--accent-light) !important;
}

/* Страница "О сайте" */
.about-content {
    background: var(--bg-card) !important;
    border-radius: 12px !important;
    padding: 2.5rem !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03) !important;
}

.about-content h2 {
    font-family: var(--font-reading) !important;
    font-size: 1.5rem !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
    margin-top: 2rem !important;
    margin-bottom: 1rem !important;
}

.about-content h2:first-child {
    margin-top: 0 !important;
}

.about-content p {
    font-family: var(--font-reading) !important;
    font-size: 1.05rem !important;
    line-height: var(--line-height-reading) !important;
    color: var(--text-primary) !important;
    margin-bottom: 1rem !important;
}

.about-content ul {
    margin-bottom: 1rem !important;
    padding-left: 1.5rem !important;
}

.about-content li {
    font-family: var(--font-reading) !important;
    font-size: 1.05rem !important;
    line-height: var(--line-height-reading) !important;
    color: var(--text-primary) !important;
    margin-bottom: 0.5rem !important;
}

/* Подвал */
.ui.inverted.segment.footer-segment {
    background: var(--primary-dark) !important;
    padding: 3rem 0 !important;
    margin-top: 4rem !important;
    border-radius: 0 !important;
}

.footer-content {
    font-family: var(--font-ui) !important;
    font-size: 0.95rem !important;
    color: rgba(255,255,255,0.7) !important;
    text-align: center !important;
}

/* Кнопка "Назад" */
.ui.button.back-button {
    font-family: var(--font-ui) !important;
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border: none !important;
    padding: 0.75rem 1.25rem !important;
    border-radius: 8px !important;
    font-weight: 500 !important;
    margin-top: 1.5rem !important;
    margin-bottom: 1.5rem !important;
    transition: all 0.2s ease !important;
    display: inline-block !important;
}

.ui.button.back-button:hover {
    background: var(--bg-card) !important;
    color: var(--primary-color) !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06) !important;
}

/* Адаптивность для articles-grid */
@media (max-width: 992px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 600px) {
    .articles-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Адаптивность */
@media (max-width: 768px) {
    :root {
        --font-size-base: 17px;
    }
    
    .main-title {
        font-size: 2rem !important;
    }
    
    .article-content {
        padding: 2rem 1.5rem !important;
    }
    
    .article-content h1 {
        font-size: 1.75rem !important;
    }
    
    .article-content h2 {
        font-size: 1.35rem !important;
    }
    
    .ui.container {
        padding: 0 1rem !important;
    }
    
    .content-section,
    .article-card,
    .article-content,
    .about-content {
        padding: 1.5rem !important;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 1.75rem !important;
    }
    
    .main-subtitle {
        font-size: 1rem !important;
    }
    
    .article-card .header {
        font-size: 1.1rem !important;
    }
}

/* Убираем старые классы для совместимости */
.container {
    max-width: var(--max-width-reading);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.intro {
    background: var(--bg-card);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 12px;
}

.intro h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.intro p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: var(--line-height-reading);
    margin: 0;
}