/*
 * Стили для страницы просмотра урока (view_lesson.html)
 * 
 * ВАЖНО: Все новые стили для этой страницы должны добавляться ТОЛЬКО в этот CSS файл.
 * HTML файл (view_lesson.html) содержит только ссылку на этот CSS файл.
 * Не добавляйте стили напрямую в HTML через тег <style>.
 */

.lesson-detail {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 20px;
}

.lesson-detail__header {
    margin-bottom: 30px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.lesson-detail__header h1 {
    color: var(--color-blue);
    font-weight: 600;
    font-size: 2em;
    line-height: 1.3;
}

.lesson-detail__hero {
    width: 100%;
    margin-bottom: 40px;
}

.lesson-detail__hero img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.lesson-learning-layout__main {
    max-width: 100%;
    width: 100%;
}

.lesson-detail__content {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
    line-height: 1.8;
    color: var(--text-primary);
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.lesson-detail__content h1,
.lesson-detail__content h2,
.lesson-detail__content h3,
.lesson-detail__content h4 {
    color: var(--color-blue);
    margin-top: 28px;
    margin-bottom: 16px;
    font-weight: 600;
}

.lesson-detail__content h1:first-child,
.lesson-detail__content h2:first-child,
.lesson-detail__content h3:first-child {
    margin-top: 0;
}

.lesson-detail__content p {
    margin-bottom: 18px;
}

.lesson-detail__content ul,
.lesson-detail__content ol {
    margin-left: 28px;
    margin-bottom: 18px;
}

.lesson-detail__content li {
    margin-bottom: 10px;
}

.lesson-detail__content a {
    color: var(--color-light-blue);
    text-decoration: none;
}

.lesson-detail__content a:hover {
    color: var(--color-blue);
    text-decoration: underline;
}

.lesson-detail__content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.lesson-detail__content code {
    background: rgba(212, 196, 176, 0.2);
    padding: 3px 8px;
    border-radius: 4px;
    font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

.lesson-detail__content pre {
    background: #ffffff;
    color: #2c3e50;
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    border: 1px solid #e0e6ed;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin: 1.5rem 0;
    font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    -moz-tab-size: 4;
    -o-tab-size: 4;
    -webkit-tab-size: 4;
    tab-size: 4;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    position: relative;
}

[data-theme="dark"] .lesson-detail__content pre {
    background: #8b7355 !important;
    color: #f5f5f5 !important;
    border-color: #a6896b !important;
}

.lesson-detail__content pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
    color: inherit;
}

/* Стили для кнопки копирования кода */
.code-block-wrapper {
    position: relative;
}

.code-copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--color-blue);
    color: #ffffff;
    border: none;
    padding: 0.4rem;
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.code-copy-btn:hover {
    background: var(--color-light-blue);
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

.code-copy-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.code-copy-btn svg {
    width: 16px;
    height: 16px;
    color: currentColor;
}

.lesson-detail__content blockquote {
    border-left: 4px solid var(--color-light-blue);
    padding-left: 20px;
    margin: 20px 0;
    color: var(--color-dark-gray);
    font-style: italic;
}

.lesson-videos-section {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--color-light-brown);
}

.lesson-videos-section h2 {
    color: var(--color-blue);
    margin-bottom: 30px;
    font-size: 1.8em;
    font-weight: 600;
}

.lesson-video-item {
    background: var(--color-white);
    padding: 24px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--color-light-brown);
}

.lesson-video-item h3 {
    color: var(--color-blue);
    margin-bottom: 12px;
}

.video-player-wrapper {
    width: 100%;
    margin-top: 16px;
}

.lesson-video-player {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.lesson-navigation {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--color-light-brown);
}

.lesson-nav-link {
    display: block;
    background: var(--color-white);
    padding: 20px 24px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--color-light-brown);
    text-decoration: none;
    color: var(--color-black);
    transition: all 0.3s ease;
    height: 100%;
}

.lesson-nav-link:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.12);
    border-color: var(--color-blue);
    transform: translateY(-2px);
    color: var(--color-black);
    text-decoration: none;
}

.lesson-nav-link--prev {
    text-align: left;
}

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

.lesson-nav-label {
    font-size: 0.9em;
    color: var(--color-dark-gray);
    margin-bottom: 8px;
    font-weight: 500;
}

.lesson-nav-title {
    font-size: 1.1em;
    color: var(--color-blue);
    font-weight: 600;
}

.lesson-nav-link:hover .lesson-nav-title {
    color: var(--color-light-blue);
}

.lesson-qa-section {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--color-light-brown);
}

.lesson-qa-section h2 {
    color: var(--color-blue);
    margin-bottom: 20px;
    font-size: 1.8em;
    font-weight: 600;
}

.lesson-qa-item {
    background: var(--color-white);
    padding: 24px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--color-light-brown);
    border-left: 4px solid var(--color-light-blue);
}

.lesson-qa-question {
    margin-bottom: 16px;
}

.lesson-qa-question-text {
    background: #f8f9fa;
    padding: 16px;
    border-radius: 8px;
    border-left: 3px solid var(--color-blue);
    color: var(--color-black);
    line-height: 1.6;
    font-size: 1.05em;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Темная тема для текста вопроса в дополнительном материале */
[data-theme="dark"] .lesson-qa-question-text {
    background: #4a6fa5 !important;
    color: #ffffff !important;
}

.lesson-qa-answer {
    padding-top: 16px;
    border-top: 1px solid var(--color-light-brown);
}

.lesson-qa-answer strong {
    color: var(--color-blue);
    font-size: 1.1em;
}

.lesson-qa-answer-text {
    color: var(--color-black);
    line-height: 1.8;
    margin-top: 12px;
}

.lesson-qa-answer-text p {
    margin-bottom: 12px;
}

.lesson-qa-answer-text ul,
.lesson-qa-answer-text ol {
    margin-left: 24px;
    margin-bottom: 12px;
}

.lesson-qa-answer-text li {
    margin-bottom: 8px;
}

.lesson-qa-answer-text code {
    background: rgba(212, 196, 176, 0.2);
    padding: 3px 8px;
    border-radius: 4px;
    font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

.lesson-qa-answer-text pre {
    background: #ffffff;
    color: #2c3e50;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border: 1px solid #e0e6ed;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
    margin: 1rem 0;
    font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    position: relative;
}

[data-theme="dark"] .lesson-qa-answer-text pre {
    background: #8b7355 !important;
    color: #f5f5f5 !important;
    border-color: #a6896b !important;
}

.lesson-qa-answer-text pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
    color: inherit;
}

/* Адаптация кнопки копирования для мобильных устройств */
@media (max-width: 768px) {
    .code-copy-btn {
        width: 28px;
        height: 28px;
        padding: 0.35rem;
        top: 0.4rem;
        right: 0.4rem;
    }
    
    .code-copy-btn svg {
        width: 14px;
        height: 14px;
    }
}

/* Мобильная версия */
@media (max-width: 768px) {
    .lesson-detail {
        max-width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
        width: 100%;
        overflow-wrap: break-word;
        word-wrap: break-word;
        overflow-x: hidden;
        position: relative;
    }
    
    .lesson-detail__header {
        margin-bottom: 20px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        padding: 0;
        overflow-wrap: break-word;
        word-wrap: break-word;
    }
    
    .lesson-detail__header h1 {
        font-size: 1.5em;
        line-height: 1.4;
        word-wrap: break-word;
        overflow-wrap: break-word;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    /* Вертикальная компоновка на мобильных - все блоки идут друг за другом */
    .lesson-learning-layout {
        display: flex !important;
        flex-direction: column !important;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-wrap: break-word;
        word-wrap: break-word;
        gap: 20px;
    }
    
    .lesson-learning-layout__main {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        flex: 1 1 auto;
        box-sizing: border-box;
        overflow-wrap: break-word;
        word-wrap: break-word;
        overflow-x: hidden;
    }
    
    /* ИИ-помощник на мобильных - полная ширина, вертикально */
    .lesson-ai-panel {
        width: 100% !important;
        max-width: 100% !important;
        flex: 1 1 auto !important;
        flex-basis: auto !important;
        position: static !important;
        min-width: 0;
        box-sizing: border-box;
    }
    
    /* Убираем блоки для основного контента */
    .lesson-detail__content {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0;
        margin-bottom: 0;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        box-sizing: border-box;
        overflow-wrap: break-word;
        word-wrap: break-word;
        word-break: break-word;
        overflow-x: hidden;
        position: relative;
    }
    
    /* Глобальные стили для всех элементов внутри контента */
    .lesson-detail__content * {
        max-width: 100%;
        overflow-wrap: break-word;
        word-wrap: break-word;
        box-sizing: border-box;
    }
    
    /* Исключение для pre и code - они обрабатываются отдельно */
    .lesson-detail__content pre,
    .lesson-detail__content pre * {
        box-sizing: border-box;
    }
    
    /* Исключения для элементов, которые должны иметь свою ширину */
    .lesson-detail__content pre,
    .lesson-detail__content pre code,
    .lesson-detail__content table,
    .lesson-detail__content img {
        box-sizing: border-box;
    }
    
    /* Для всех inline и текстовых элементов - принудительный перенос */
    .lesson-detail__content h1,
    .lesson-detail__content h2,
    .lesson-detail__content h3,
    .lesson-detail__content h4,
    .lesson-detail__content h5,
    .lesson-detail__content h6,
    .lesson-detail__content p,
    .lesson-detail__content li,
    .lesson-detail__content span,
    .lesson-detail__content strong,
    .lesson-detail__content em,
    .lesson-detail__content b,
    .lesson-detail__content i,
    .lesson-detail__content a,
    .lesson-detail__content blockquote,
    .lesson-detail__content div:not(.table-scroll-wrapper):not(pre) {
        word-break: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    /* Стили для таблиц на мобильных - чтобы не растягивали контейнер */
    .lesson-detail__content table {
        max-width: 100%;
        width: 100%;
        border-collapse: collapse;
        margin: 1.5rem 0;
        overflow-x: auto;
        display: block;
    }
    
    .lesson-detail__content table thead,
    .lesson-detail__content table tbody,
    .lesson-detail__content table tr {
        display: table;
        width: 100%;
        table-layout: fixed;
    }
    
    .lesson-detail__content table td,
    .lesson-detail__content table th {
        word-wrap: break-word;
        overflow-wrap: break-word;
        padding: 8px 12px;
        border: 1px solid var(--border-color);
        font-size: 0.85em;
    }
    
    /* Стили для изображений на мобильных */
    .lesson-detail__content img {
        max-width: 100% !important;
        width: auto !important;
        height: auto !important;
        display: block;
    }
    
    /* Стили для длинных URL на мобильных */
    .lesson-detail__content a {
        word-break: break-all;
        overflow-wrap: break-word;
    }
    
    /* Стили для блоков кода на мобильных - не должны увеличивать ширину контейнера */
    .lesson-detail__content pre {
        white-space: pre;
        word-wrap: normal;
        overflow-x: auto;
        max-width: 100% !important;
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        display: block;
    }
    
    .lesson-detail__content pre code {
        max-width: 100% !important;
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        display: block;
        overflow-x: auto;
    }
    
    /* Стили для ответов ИИ на мобильных */
    .lesson-qa-answer-text {
        overflow-wrap: break-word;
        word-wrap: break-word;
        word-break: break-word;
        max-width: 100%;
    }
    
    .lesson-qa-answer-text table {
        max-width: 100%;
        width: 100%;
        border-collapse: collapse;
        margin: 1rem 0;
        overflow-x: auto;
        display: block;
    }
    
    .lesson-qa-answer-text table thead,
    .lesson-qa-answer-text table tbody,
    .lesson-qa-answer-text table tr {
        display: table;
        width: 100%;
        table-layout: fixed;
    }
    
    .lesson-qa-answer-text table td,
    .lesson-qa-answer-text table th {
        word-wrap: break-word;
        overflow-wrap: break-word;
        padding: 6px 8px;
        border: 1px solid var(--border-color);
        font-size: 0.85em;
    }
    
    .lesson-qa-answer-text img {
        max-width: 100% !important;
        width: auto !important;
        height: auto !important;
        display: block;
    }
    
    .lesson-qa-answer-text a {
        word-break: break-all;
        overflow-wrap: break-word;
    }
    
    .lesson-qa-answer-text pre {
        white-space: pre;
        word-wrap: normal;
        overflow-x: auto;
        max-width: 100% !important;
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        display: block;
    }
    
    .lesson-qa-answer-text pre code {
        max-width: 100% !important;
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        display: block;
        overflow-x: auto;
    }
    
    .lesson-detail__hero {
        margin-bottom: 25px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .lesson-detail__hero img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box;
    }
    
    .lesson-detail__content h1,
    .lesson-detail__content h2,
    .lesson-detail__content h3,
    .lesson-detail__content h4 {
        font-size: 1.2em;
        margin-top: 20px;
        margin-bottom: 12px;
    }
    
    .lesson-detail__content p {
        font-size: 0.95em;
        margin-bottom: 14px;
    }
    
    /* Убираем блоки для вопросов/ответов */
    .lesson-qa-section {
        margin-top: 30px;
        padding-top: 20px;
        border-top: none;
    }
    
    .lesson-qa-section h2 {
        font-size: 1.4em;
        margin-bottom: 20px;
    }
    
    .lesson-qa-item {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        border-left: none !important;
        padding: 0;
        margin-bottom: 30px;
    }
    
    .lesson-qa-question-text {
        background: transparent !important;
        border-left: 3px solid var(--color-blue);
        padding-left: 12px;
        padding-top: 0;
        padding-bottom: 0;
    }
    
    .lesson-qa-answer {
        padding-top: 12px;
        border-top: 1px solid var(--border-color);
    }
    
    .lesson-videos-section {
        margin-top: 30px;
        padding-top: 20px;
    }
    
    .lesson-videos-section h2 {
        font-size: 1.4em;
    }
    
    .lesson-navigation {
        margin-top: 30px;
        padding-top: 20px;
    }
    
    /* Стили для обертки таблиц с прокруткой */
    .table-scroll-wrapper {
        overflow-x: auto;
        max-width: 100%;
        margin: 1.5rem 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    
    .table-scroll-wrapper::-webkit-scrollbar {
        height: 8px;
    }
    
    .table-scroll-wrapper::-webkit-scrollbar-track {
        background: #f1f1f1;
        border-radius: 4px;
    }
    
    .table-scroll-wrapper::-webkit-scrollbar-thumb {
        background: #888;
        border-radius: 4px;
    }
    
    .table-scroll-wrapper::-webkit-scrollbar-thumb:hover {
        background: #555;
    }
    
    /* Улучшенные стили для блоков кода с ограничением высоты */
    .lesson-detail__content pre,
    .lesson-qa-answer-text pre {
        scrollbar-width: thin;
    }
    
    .lesson-detail__content pre::-webkit-scrollbar,
    .lesson-qa-answer-text pre::-webkit-scrollbar {
        height: 8px;
        width: 8px;
    }
    
    .lesson-detail__content pre::-webkit-scrollbar-track,
    .lesson-qa-answer-text pre::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.1);
        border-radius: 4px;
    }
    
    .lesson-detail__content pre::-webkit-scrollbar-thumb,
    .lesson-qa-answer-text pre::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 4px;
    }
    
    .lesson-detail__content pre::-webkit-scrollbar-thumb:hover,
    .lesson-qa-answer-text pre::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 0, 0, 0.5);
    }
}