/**
 * Стили для Сервиса AI Агентов
 * 
 * Структура файла:
 * 1. CSS переменные (цветовая схема платформы)
 * 2. Общие стили (body, контейнеры)
 * 3. Стили страницы чата
 * 4. Стили страницы логина
 */

/* ==========================================
   1. CSS ПЕРЕМЕННЫЕ - ЦВЕТОВАЯ СХЕМА ПЛАТФОРМЫ
   ========================================== */

:root {
    font-size: 103.5%;  /* Было 115%, уменьшено на ~10% */
    /* Основные цвета */
    --primary-color: #173845;        /* Темно-синий (основной) */
    --primary-light: #59c69e;        /* Светло-зеленый (акцент) */
    --secondary-color: #fff;         /* Белый */
    --accent-color: #ff4d4f;         /* Красный (для кнопок типа "Выйти") */
    
    /* Фоновые цвета */
    --bg-main: #59c69e0d;            /* Светло-зеленый прозрачный */
    --bg-message: #f7f9f9;           /* Фон сообщений ассистента */
    --bg-input: #f3f9fb;             /* Фон полей ввода (не используется, белый) */
    --bg-send: #f7fcf8;              /* Светло-зеленый фон */
    --bg-code: #ebeff0;              /* Фон для кода */
    --primary-hover: #e3f5ee;        /* Hover эффект */
    --bg-secondary: #cae8d824;       /* Вторичный фон прозрачный */
    
    /* Границы */
    --border-primary: #d0d5d8;       /* Темно-серые границы */
}

/* ==========================================
   2. ОБЩИЕ СТИЛИ
   ========================================== */

body { 
    height: 100vh; 
    display: flex; 
    flex-direction: column; 
    margin: 0;
    overflow: hidden;
    background: #f2f4f5;  /* Основной фон всего приложения */
}

/* ==========================================
   3. СТИЛИ СТРАНИЦЫ ЧАТА
   ========================================== */

/* --- 3.1. Navbar (верхняя панель) --- */
.navbar {
    background: #f2f4f5;
    border-bottom: 2px solid var(--border-primary);
    height: 64px;
}

.navbar-brand {
    color: var(--primary-color);
    font-weight: 600;
}

/* --- 3.2. Основной контейнер --- */
.main-container { 
    flex: 1; 
    display: flex; 
    flex-direction: column;
    overflow: hidden; 
}

/* --- 3.3. Вкладки (Tabs) --- */
.tabs-container {
    border-bottom: 1px solid var(--border-primary);
    background: #f2f4f5;
}

.nav-tabs .nav-link {
    color: var(--primary-color);
    border: none;
}

.nav-tabs .nav-link.active {
    background: var(--primary-light);
    color: white;
    border-radius: 0.5rem 0.5rem 0 0;
}

.nav-tabs .nav-link:hover {
    background: var(--primary-hover);
}

/* --- 3.4. Режимы чата (с ассистентами / простой) --- */
#assistantsMode, 
#simpleMode {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* --- 3.5. Sidebar (боковая панель с ассистентами) --- */
.sidebar { 
    width: 250px; 
    background: #f2f4f5; 
    border-right: 1px solid var(--border-primary); 
    padding: 1rem; 
    overflow-y: auto; 
}

.sidebar h5 {
    color: var(--primary-color);
    font-weight: 600;
}

/* --- 3.6. Элементы списка ассистентов --- */
.assistant-item { 
    cursor: pointer; 
    padding: 0.75rem; 
    border-radius: 0.5rem; 
    margin-bottom: 0.5rem;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.assistant-item:hover { 
    background-color: var(--primary-hover); 
    border-color: var(--border-primary);
}

/* Активный (выбранный) ассистент - СВЕТЛО-ЗЕЛЕНЫЙ фон */
.assistant-item.active { 
    background-color: #59c69e31;  /* Светло-зеленый фон */
    color: rgb(0, 0, 0);               /* Белый текст */
    box-shadow: 0 2px 8px rgba(89, 198, 158, 0.3);
}

/* --- 3.7. Область чата --- */
.chat-area { 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    padding: 1rem;
    overflow: hidden;
    background: #f2f4f5;
}

/* --- 3.8. Область сообщений --- */
.messages { 
    flex: 1; 
    overflow-y: auto; 
    margin-bottom: 1rem; 
    padding: 1rem; 
    border: 1px solid var(--border-primary); 
    border-radius: 0.5rem; 
    background: var(--secondary-color); 
}

/* --- 3.9. Сообщения --- */
.message { 
    margin-bottom: 1rem; 
    padding: 0.75rem 1rem; 
    max-width: 80%; 
    word-wrap: break-word;
}

/* Сообщения пользователя (справа, с градиентом) */
.message.user { 
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white; 
    margin-left: auto; 
    box-shadow: 0 2px 4px rgba(23, 56, 69, 0.2);
    border-radius: 0.75rem;  /* Закругленные углы для пользователя */
}

/* Сообщения ассистента (слева, с зеленой границей, БЕЗ закруглений) */
.message.assistant { 
    background-color: var(--bg-message); 
    color: var(--primary-color);
    border-left: 3px solid var(--primary-light);
    border-radius: 0;  /* Прямые углы для ассистента */
}

/* --- 3.10. Поля ввода --- */
.input-group input {
    background: white;
    border: 1px solid var(--border-primary);
}

.input-group input:focus {
    background: white;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.2rem rgba(89, 198, 158, 0.25);
}

/* --- 3.11. Кнопки --- */
.btn-primary {
    background: var(--primary-light);
    border-color: var(--primary-light);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* ==========================================
   4. СТИЛИ СТРАНИЦЫ ЛОГИНА
   ========================================== */

/* --- 4.1. Body для страницы логина --- */
.login-page {
    background: #f2f4f5;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    font-family: 'Montserrat', sans-serif;
}

/* --- 4.2. Карточка логина --- */
.login-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 1rem 3rem rgba(23, 56, 69, 0.15);
    background: white;
    border: 1px solid var(--border-primary);
}

.login-card h3 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 2rem;
}

.login-logo {
    height: 80px;
    width: auto;
    transition: opacity 0.2s;
}

.login-logo:hover {
    opacity: 0.8;
}

/* --- 4.3. Поля формы логина --- */
.form-label {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control {
    background: white;
    border: 1px solid var(--border-primary);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
}

.form-control:focus {
    background: white;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.25rem rgba(89, 198, 158, 0.25);
}

/* --- 4.4. Кнопка входа --- */
.login-card .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border: none;
    border-radius: 0.75rem;
    padding: 0.875rem;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s;
}

.login-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(89, 198, 158, 0.3);
}

/* --- 4.5. Сообщение об ошибке --- */
.text-danger {
    color: var(--accent-color) !important;
    font-size: 0.9rem;
}

/* ==========================================
   5. СТРАНИЦА СПИСКА САЙТОВ (sites.html)
   ========================================== */

.sites-nav {
    background: #f2f4f5;
    border-bottom: 2px solid var(--border-primary);
    height: 64px;
}

/* --- Logo in header --- */
.header-logo {
    height: 40px;
    width: auto;
    transition: opacity 0.2s;
}

.header-logo:hover {
    opacity: 0.8;
}

.header-logo-link {
    display: inline-block;
    line-height: 0;
}

.site-card {
    color: inherit;
    border: 1px solid var(--border-primary);
    border-radius: 0.75rem;
    transition: all 0.2s;
}

.site-card:hover {
    border-color: var(--primary-light);
    box-shadow: 0 4px 12px rgba(89, 198, 158, 0.2);
}

/* ==========================================
   6. OBSIDIAN-LIKE VIEWER (viewer.html)
   ========================================== */

.viewer-body {
    height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    overflow: hidden;
    background: var(--bg-main);
}

.viewer-nav {
    flex-shrink: 0;
    background: #f2f4f5;
    border-bottom: 1px solid var(--border-primary);
    height: 0;
    padding: 0 !important;
    overflow: hidden;
    border: none;
}

.viewer-brand {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.viewer-brand:hover {
    color: var(--primary-light);
}

.viewer-layout {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.viewer-sidebar {
    width: var(--viewer-sidebar-width, 260px);
    min-width: 200px;
    max-width: 60%;
    flex-shrink: 0;
    background: #e8eaed;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.3s ease, min-width 0.3s ease;
}

.viewer-sidebar.hidden {
    width: 0 !important;
    min-width: 0 !important;
    overflow: hidden;
}

.viewer-resize-handle {
    width: 6px;
    min-width: 6px;
    flex-shrink: 0;
    cursor: col-resize;
    background: var(--border-primary);
    transition: background 0.15s, width 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.viewer-resize-handle::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 32px;
    background: transparent;
    border-radius: 2px;
    transition: background 0.15s;
}

.viewer-resize-handle:hover::before,
.viewer-resize-handle:active::before {
    background: var(--primary-light);
}

.viewer-resize-handle:hover,
.viewer-resize-handle:active {
    background: rgba(89, 198, 158, 0.1);
}

.viewer-resize-handle.hidden {
    width: 0;
    min-width: 0;
}

.viewer-resize-handle.hidden::before {
    display: none;
}

.viewer-toggle-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.viewer-toggle-btn:hover {
    background: var(--primary-light);
    width: 28px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.viewer-toggle-btn:active {
    transform: translate(-50%, -50%) scale(0.95);
}

.viewer-sidebar.hidden + .viewer-resize-handle {
    left: 0;
}

.viewer-sidebar.hidden + .viewer-resize-handle .viewer-toggle-btn {
    transform: translate(-50%, -50%) rotate(180deg);
}

.viewer-sidebar.hidden + .viewer-resize-handle .viewer-toggle-btn:hover {
    transform: translate(-50%, -50%) rotate(180deg) scale(1.1);
}

.viewer-sidebar.hidden + .viewer-resize-handle .viewer-toggle-btn:active {
    transform: translate(-50%, -50%) rotate(180deg) scale(0.95);
}

.viewer-sidebar-header {
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.viewer-tree {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.viewer-tree-list {
    list-style: none;
    margin: 0;
    padding-left: 0;
}

.viewer-tree-list .viewer-tree-list {
    padding-left: 1.5rem;
    display: none;
}

.viewer-tree-list .viewer-tree-list.open {
    display: block;
}

.viewer-tree-item {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

.viewer-tree-item-content {
    display: flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: background 0.15s;
}

.viewer-tree-item-content:hover {
    background: var(--primary-hover);
}

.viewer-tree-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
    color: var(--primary-color);
    font-size: 0.65rem;
    user-select: none;
    flex-shrink: 0;
}

.viewer-tree-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.2rem;
    height: 1.2rem;
    margin-right: 0.4rem;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.viewer-tree-name {
    color: var(--primary-color);
    font-size: 0.9rem;
    flex: 1;
    cursor: pointer;
    user-select: none;
}

.viewer-tree-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    flex: 1;
    cursor: pointer;
    transition: all 0.2s;
}

.viewer-tree-link:hover {
    color: var(--primary-light);
}

/* Active (currently viewing) file */
.viewer-tree-link.active {
    font-weight: 700;
    color: var(--primary-light);
}

.viewer-tree-item-content.active {
    background: rgba(89, 198, 158, 0.15);
}

.viewer-tree-share-btn {
    opacity: 0;
    visibility: hidden;
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    margin-left: 0.5rem;
    font-size: 0.9rem;
    transition: opacity 0.2s, transform 0.2s, visibility 0s 0.2s;
    flex-shrink: 0;
}

.viewer-tree-share-btn:hover {
    opacity: 1 !important;
    transform: scale(1.2);
}

.viewer-tree-item:hover .viewer-tree-share-btn {
    opacity: 0.6;
    visibility: visible;
    transition: opacity 0.2s, transform 0.2s, visibility 0s 0s;
}

.viewer-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 2rem;
    background: #fff;
}

.viewer-placeholder {
    color: #6c757d;
    padding: 2rem;
}

.viewer-md {
    max-width: 800px;
    margin: 0 auto;
}

/* Markdown content (GitHub-style) */
.markdown-body {
    font-size: 0.85rem;  /* Было 1rem, уменьшено на 15% */
    line-height: 1.6;
}

.markdown-body h1 { font-size: 1.49rem; margin-top: 1.5rem; margin-bottom: 0.75rem; border-bottom: 1px solid var(--border-primary); padding-bottom: 0.25rem; }  /* 1.75 * 0.85 */
.markdown-body h2 { font-size: 1.19rem; margin-top: 1.25rem; margin-bottom: 0.5rem; }  /* 1.4 * 0.85 */
.markdown-body h3 { font-size: 1.02rem; margin-top: 1rem; margin-bottom: 0.5rem; }  /* 1.2 * 0.85 */
.markdown-body h4, .markdown-body h5, .markdown-body h6 { font-size: 0.85rem; margin-top: 0.75rem; margin-bottom: 0.25rem; }  /* 1 * 0.85 */

.markdown-body p { margin-bottom: 1rem; }
.markdown-body ul, .markdown-body ol { margin-bottom: 1rem; padding-left: 1.5rem; }
.markdown-body li { margin-bottom: 0.25rem; }

.markdown-body blockquote {
    margin: 1rem 0;
    padding: 0.5rem 1rem;
    border-left: 4px solid var(--primary-light);
    background: var(--bg-message);
    color: #555;
}

.markdown-body pre {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--bg-code);
    border-radius: 0.5rem;
    overflow-x: auto;
}

.markdown-body code {
    font-size: 0.9em;
    background: var(--bg-code);
    padding: 0.15rem 0.4rem;
    border-radius: 0.25rem;
}

.markdown-body pre code {
    padding: 0;
    background: none;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
}

.markdown-body table {
    border-collapse: collapse;
    margin: 1rem 0;
    width: 100%;
}

.markdown-body th, .markdown-body td {
    border: 1px solid var(--border-primary);
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.markdown-body th {
    background: var(--bg-message);
    font-weight: 600;
}

/* --- Branch Selector (in sidebar) --- */
.viewer-sidebar .viewer-branch-selector {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.viewer-sidebar .viewer-branch-selector select {
    width: 100%;
    border-color: var(--border-primary);
    font-size: 0.85rem;
}

.viewer-sidebar .viewer-branch-selector select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.25rem rgba(89, 198, 158, 0.25);
}

/* --- Branch Selector (Preview Mode - fixed at bottom, deprecated) --- */
.viewer-branch-selector.fixed {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 2px solid var(--primary-light);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.viewer-branch-label {
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
}

#branchSelect {
    border-color: var(--border-primary);
}

#previewBadge {
    display: none;
    font-size: 0.75rem;
    font-weight: 600;
}

/* --- Site Tabs (in viewer.html) --- */
#siteTabs {
    background: #f2f4f5;  /* Светло-серый фон */
    padding: 0px 0;      /* Вертикальный отступ 10px */
}

#siteTabs .nav-tabs {
    border-bottom: none;
    margin-bottom: 0;
}

#siteTabs .nav-link {
    color: var(--primary-color);
    border: none;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
}

#siteTabs .nav-link.active {
    background: var(--primary-light);
    color: white;
    border-radius: 0.5rem 0.5rem 0 0;
}

#siteTabs .nav-link:hover:not(.active) {
    background: var(--primary-hover);
    border-radius: 0.5rem 0.5rem 0 0;
}

#backToMenuBtn {
    color: var(--primary-color);
    font-weight: 500;
    white-space: nowrap;
    padding: 0.5rem 0;
}

#backToMenuBtn:hover {
    color: var(--primary-light);
}

.wiki-link {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px dashed var(--primary-light);
    cursor: pointer;
    transition: all 0.15s ease;
}

.wiki-link:hover {
    color: var(--primary-light);
    border-bottom-style: solid;
    background: var(--primary-hover);
}