/* Примечание: поддерживаем совместимость сетки урока и панели ассистента на разных разрешениях */
.lesson-learning-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    width: 100%;
}

.lesson-learning-layout__main {
    flex: 1 1 auto;
    min-width: 0;
}

.lesson-ai-panel {
    flex: 0 0 360px;
    width: 100%;
    position: sticky;
    top: 90px;
    z-index: 2;
}

.lesson-ai-panel__inner {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.lesson-ai-panel__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.lesson-ai-panel__title h2 {
    font-size: 1.25rem;
    margin: 0 0 4px 0;
    color: var(--color-blue);
}

.lesson-ai-panel__title p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.lesson-ai-panel__expand-btn {
    border: 1px solid var(--border-color);
    background: #fff6ed;
    color: var(--color-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] .lesson-ai-panel__expand-btn {
    background: rgba(139, 122, 107, 0.3);
    color: var(--color-light-blue);
}

.lesson-ai-panel__expand-btn:hover,
.lesson-ai-panel__expand-btn:focus-visible {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px rgba(64, 93, 230, 0.15);
    outline: none;
}

.lesson-ai-panel__chat {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    max-height: 420px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: #faf6f1;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

[data-theme="dark"] .lesson-ai-panel__chat {
    background-color: rgba(45, 58, 74, 0.8);
}

.assistant-message {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.assistant-message--bot {
    background-color: var(--color-light-brown);
    color: var(--text-primary);
    align-self: flex-start;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.assistant-message--user {
    background-color: var(--color-light-blue);
    color: #fff;
    align-self: flex-end;
    transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] .assistant-message--user {
    background-color: var(--color-blue);
    color: var(--color-white);
}

.assistant-message h1,
.assistant-message h2,
.assistant-message h3,
.assistant-message h4,
.assistant-message h5,
.assistant-message h6 {
    margin-top: 0;
    margin-bottom: 0.5em;
    font-size: 1.05rem;
}

.assistant-message p {
    margin: 0 0 0.6em 0;
}

.assistant-message ul,
.assistant-message ol {
    margin: 0 0 0.6em 1.2em;
    padding-left: 1.2em;
}

.assistant-message li {
    margin-bottom: 0.4em;
}

.assistant-message code {
    background: rgba(212, 196, 176, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] .assistant-message code {
    background: rgba(139, 122, 107, 0.25);
}

.assistant-message 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;
    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;
}

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

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

/* Отключение подсветки синтаксиса в ответах ИИ */
.assistant-message pre *,
.assistant-message code *,
.assistant-message pre span,
.assistant-message code span {
    color: inherit !important;
    background: transparent !important;
    font-weight: inherit !important;
    font-style: inherit !important;
}

/* Исправление темных цветов синтаксической подсветки в темной теме */
[data-theme="dark"] .assistant-message pre,
[data-theme="dark"] .assistant-message code {
    /* Переопределяем темные цвета на светлые */
}

[data-theme="dark"] .assistant-message pre *,
[data-theme="dark"] .assistant-message code *,
[data-theme="dark"] .assistant-message pre span,
[data-theme="dark"] .assistant-message code span {
    color: #f5f5f5 !important; /* Единый светлый цвет для всего кода */
    background: transparent !important;
}

[data-theme="dark"] .assistant-message pre .hljs-keyword,
[data-theme="dark"] .assistant-message pre .hljs-built_in,
[data-theme="dark"] .assistant-message pre .hljs-selector-tag,
[data-theme="dark"] .assistant-message pre .hljs-type,
[data-theme="dark"] .assistant-message pre .hljs-tag,
[data-theme="dark"] .assistant-message pre .hljs-name,
[data-theme="dark"] .assistant-message pre .hljs-attr,
[data-theme="dark"] .assistant-message pre .hljs-attribute,
[data-theme="dark"] .assistant-message pre .hljs-variable,
[data-theme="dark"] .assistant-message pre .hljs-template-variable,
[data-theme="dark"] .assistant-message pre .hljs-selector-id,
[data-theme="dark"] .assistant-message pre .hljs-selector-class {
    color: #8fb8e8 !important; /* Светло-синий */
}

[data-theme="dark"] .assistant-message pre .hljs-string,
[data-theme="dark"] .assistant-message pre .hljs-char,
[data-theme="dark"] .assistant-message pre .hljs-template-string,
[data-theme="dark"] .assistant-message pre .hljs-regexp,
[data-theme="dark"] .assistant-message pre .hljs-addition,
[data-theme="dark"] .assistant-message pre .hljs-meta-string {
    color: #a8d5a8 !important; /* Светло-зеленый */
}

[data-theme="dark"] .assistant-message pre .hljs-number,
[data-theme="dark"] .assistant-message pre .hljs-literal,
[data-theme="dark"] .assistant-message pre .hljs-hexcode,
[data-theme="dark"] .assistant-message pre .hljs-link {
    color: #e8b88a !important; /* Светло-оранжевый */
}

[data-theme="dark"] .assistant-message pre .hljs-comment,
[data-theme="dark"] .assistant-message pre .hljs-quote,
[data-theme="dark"] .assistant-message pre .hljs-deletion,
[data-theme="dark"] .assistant-message pre .hljs-meta {
    color: #b0b0b0 !important; /* Светло-серый */
}

[data-theme="dark"] .assistant-message pre .hljs-function,
[data-theme="dark"] .assistant-message pre .hljs-title,
[data-theme="dark"] .assistant-message pre .hljs-title.function_,
[data-theme="dark"] .assistant-message pre .hljs-title.class_,
[data-theme="dark"] .assistant-message pre .hljs-title.class_.inherited__ {
    color: #8fb8e8 !important; /* Светло-синий */
}

[data-theme="dark"] .assistant-message pre .hljs-params {
    color: #e0e0e0 !important; /* Светлый */
}

/* Общие правила для темных цветов в коде */
[data-theme="dark"] .assistant-message pre span[style*="color: #000"],
[data-theme="dark"] .assistant-message pre span[style*="color:#000"],
[data-theme="dark"] .assistant-message pre span[style*="color: rgb(0"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(0"],
[data-theme="dark"] .assistant-message pre span[style*="color: #00"],
[data-theme="dark"] .assistant-message pre span[style*="color:#00"],
[data-theme="dark"] .assistant-message pre span[style*="color: #008"],
[data-theme="dark"] .assistant-message pre span[style*="color:#008"],
[data-theme="dark"] .assistant-message pre span[style*="color: #006"],
[data-theme="dark"] .assistant-message pre span[style*="color:#006"],
[data-theme="dark"] .assistant-message pre span[style*="color: #080"],
[data-theme="dark"] .assistant-message pre span[style*="color:#080"],
[data-theme="dark"] .assistant-message pre span[style*="color: #800"],
[data-theme="dark"] .assistant-message pre span[style*="color:#800"] {
    color: #e0e0e0 !important; /* Светлый цвет по умолчанию */
}

/* Специфичные цвета для синтаксической подсветки */
[data-theme="dark"] .assistant-message pre span[style*="color: #0000ff"],
[data-theme="dark"] .assistant-message pre span[style*="color:#0000ff"],
[data-theme="dark"] .assistant-message pre span[style*="color: blue"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(0, 0, 255)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(0,0,255)"] {
    color: #7ba3d0 !important; /* Светло-синий */
}

[data-theme="dark"] .assistant-message pre span[style*="color: #008000"],
[data-theme="dark"] .assistant-message pre span[style*="color:#008000"],
[data-theme="dark"] .assistant-message pre span[style*="color: green"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(0, 128, 0)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(0,128,0)"] {
    color: #a8d5a8 !important; /* Светло-зеленый */
}

[data-theme="dark"] .assistant-message pre span[style*="color: #800000"],
[data-theme="dark"] .assistant-message pre span[style*="color:#800000"],
[data-theme="dark"] .assistant-message pre span[style*="color: #cc0000"],
[data-theme="dark"] .assistant-message pre span[style*="color:#cc0000"],
[data-theme="dark"] .assistant-message pre span[style*="color: red"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(128, 0, 0)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(128,0,0)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(204, 0, 0)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(204,0,0)"] {
    color: #ff9999 !important; /* Светло-красный */
}

[data-theme="dark"] .assistant-message pre span[style*="color: #800080"],
[data-theme="dark"] .assistant-message pre span[style*="color:#800080"],
[data-theme="dark"] .assistant-message pre span[style*="color: purple"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(128, 0, 128)"],
[data-theme="dark"] .assistant-message pre span[style*="color:rgb(128,0,128)"] {
    color: #d4a0d4 !important; /* Светло-фиолетовый */
}

.lesson-ai-panel__form textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 14px;
    resize: vertical;
    font-size: 0.95rem;
    min-height: 120px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.lesson-ai-panel__form textarea:focus {
    border-color: var(--border-color-hover);
    outline: none;
    box-shadow: 0 0 0 3px rgba(64, 93, 230, 0.15);
    background-color: var(--bg-input-focus);
}

[data-theme="dark"] .lesson-ai-panel__form textarea {
    background-color: var(--bg-input) !important;
    color: var(--color-light-blue) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .lesson-ai-panel__form textarea:focus {
    background-color: var(--bg-input-focus) !important;
    color: var(--color-light-blue) !important;
    border-color: var(--border-color-hover) !important;
    box-shadow: 0 0 0 3px rgba(143, 184, 232, 0.2) !important;
}

[data-theme="dark"] .lesson-ai-panel__form textarea::placeholder {
    color: var(--color-light-blue) !important;
    opacity: 0.6;
}

.lesson-ai-panel__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.lesson-ai-panel__status {
    min-height: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.lesson-ai-panel__status--error {
    color: #b61827;
}

.lesson-ai-panel__status--success {
    color: var(--color-blue);
}

/* Анимированный индикатор загрузки */
.assistant-loading-indicator {
    opacity: 0.8;
}

.assistant-loading-dots {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-bottom: 8px;
}

.assistant-loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-blue);
    animation: assistant-loading-bounce 1.4s ease-in-out infinite both;
}

.assistant-loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.assistant-loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

.assistant-loading-dots span:nth-child(3) {
    animation-delay: 0s;
}

@keyframes assistant-loading-bounce {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.assistant-loading-text {
    margin: 0;
    font-size: 0.9em;
    color: var(--text-secondary);
    font-style: italic;
}

[data-theme="dark"] .assistant-loading-dots span {
    background-color: var(--color-light-blue);
}

[data-theme="dark"] .assistant-loading-text {
    color: var(--text-secondary);
}

.lesson-ai-panel--expanded {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1050;
    padding: 24px;
    background: rgba(45, 58, 74, 0.75);
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1 1 auto !important;
}

.lesson-ai-panel--expanded .lesson-ai-panel__inner {
    max-width: min(960px, 100%);
    width: 100%;
    height: min(720px, calc(100vh - 48px));
}

.lesson-ai-panel--expanded .lesson-ai-panel__chat {
    flex: 1 1 auto;
    max-height: none;
}

.lesson-ai-panel--expanded .lesson-ai-panel__form textarea {
    min-height: 140px;
}

.lesson-ai-panel--expanded .lesson-ai-panel__expand-btn {
    background: var(--color-blue);
    color: var(--color-white);
}

[data-theme="dark"] .lesson-ai-panel--expanded .lesson-ai-panel__expand-btn {
    background: var(--color-light-blue);
    color: var(--color-white);
}

body.lesson-ai-expanded {
    overflow: hidden;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 1200px) {
    .lesson-ai-panel {
        flex-basis: 320px;
    }
}

@media (max-width: 991px) {
    .lesson-learning-layout {
        flex-direction: column;
    }

    .lesson-ai-panel {
        position: static;
        flex-basis: auto;
    }
}

@media (max-width: 768px) {
    /* Вертикальная компоновка на мобильных - все блоки идут друг за другом */
    .lesson-learning-layout {
        flex-direction: column !important;
    }
    
    /* 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;
    }
    
    /* Убираем блоки для ИИ помощника */
    .lesson-ai-panel__inner {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0;
    }
    
    .lesson-ai-panel__header {
        margin-bottom: 16px;
    }
    
    .lesson-ai-panel__chat {
        max-height: none;
        background: transparent !important;
        border: none !important;
        padding: 0;
    }
    
    .lesson-ai-panel__form {
        margin-top: 16px;
    }
    
    .lesson-ai-panel__form textarea {
        border: 1px solid var(--border-color);
    }

    .lesson-ai-panel__actions {
        flex-direction: column;
    }
    
    .lesson-ai-panel__status {
        margin-top: 12px;
    }

    .lesson-ai-panel--expanded {
        padding: 12px;
    }
    
    .lesson-ai-panel--expanded .lesson-ai-panel__inner {
        background: var(--bg-card) !important;
        border: 1px solid var(--border-color) !important;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08) !important;
        padding: 24px;
    }
    
    .lesson-ai-panel--expanded .lesson-ai-panel__chat {
        background-color: var(--bg-card) !important;
        border: 1px solid var(--border-color) !important;
        padding: 16px;
    }
}