/* ============================================================== 
   LIBRARY AI - СТИЛЬ DEEPSEEK
   Сайдбар внутри вкладки "Чат"
   Компактная статистика в одну строку
============================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

#library_ai_content {
    all: initial;
    display: block;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --primary-color: #10a37f;
    --primary-hover: #0e8c6d;
    --primary-light: rgba(16, 163, 127, 0.1);
    --secondary-color: #6c5ce7;
    --secondary-hover: #5a4ad1;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #f44336;
    --text-primary: #1e1e2f;
    --text-secondary: #6c757d;
    --text-tertiary: #9e9e9e;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e9ecef;
    --border-color: #e9ecef;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

#library_ai_content * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ==============================================================
   LAYOUT
============================================================== */

#library_ai_content .ai-layout {
    display: flex;
    height: calc(100vh - 80px);
    min-height: 500px;
    margin: 10px 20px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

#library_ai_content .ai-main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* ==============================================================
   ВКЛАДКИ
============================================================== */

#library_ai_content .ai-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    background: var(--bg-secondary);
    flex-shrink: 0;
}

#library_ai_content .tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    font-size: 15px;
}

#library_ai_content .tab-btn:hover {
    color: var(--text-primary);
}

#library_ai_content .tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* ==============================================================
   MAIN
============================================================== */

#library_ai_content .ai-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    min-width: 0;
    overflow: hidden;
}

/* ==============================================================
   CHAT LAYOUT - САЙДБАР СЛЕВА + ЧАТ СПРАВА
============================================================== */

#library_ai_content .chat-layout {
    display: flex;
    height: 100%;
    min-height: 500px;
    background: var(--bg-primary);
    overflow: hidden;
}

/* САЙДБАР */
#library_ai_content .chat-sidebar {
    width: 280px;
    min-width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 16px 0;
    overflow: hidden;
    flex-shrink: 0;
}

#library_ai_content .chat-sidebar .sidebar-header {
    padding: 0 16px 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

#library_ai_content .chat-sidebar .sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

#library_ai_content .chat-sidebar .sidebar-subtitle {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

#library_ai_content .chat-sidebar .btn-new-chat {
    margin: 12px 16px;
    padding: 10px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    font-family: inherit;
    font-size: 14px;
}

#library_ai_content .chat-sidebar .btn-new-chat:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

#library_ai_content .chat-sidebar .chat-search {
    padding: 0 16px 8px 16px;
}

#library_ai_content .chat-sidebar .chat-search input {
    width: 100%;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    font-size: 13px;
    background: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
}

#library_ai_content .chat-sidebar .chat-search input:focus {
    border-color: var(--primary-color);
}

#library_ai_content .chat-sidebar .chat-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 12px;
}

#library_ai_content .chat-sidebar .chat-list::-webkit-scrollbar {
    width: 4px;
}

#library_ai_content .chat-sidebar .chat-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--border-radius-full);
}

#library_ai_content .chat-sidebar .chat-item {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border-radius: var(--border-radius-md);
    cursor: default;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    border: 1px solid transparent;
}

#library_ai_content .chat-sidebar .chat-item:hover {
    background: var(--bg-tertiary);
}

#library_ai_content .chat-sidebar .chat-item.active {
    background: var(--primary-light);
    border-color: var(--primary-color);
}

#library_ai_content .chat-sidebar .chat-item-content {
    flex: 1;
    cursor: pointer;
    overflow: hidden;
}

#library_ai_content .chat-sidebar .chat-item-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#library_ai_content .chat-sidebar .chat-item-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

#library_ai_content .chat-sidebar .chat-item-delete {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 14px;
    padding: 4px 6px;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
    opacity: 0;
    flex-shrink: 0;
}

#library_ai_content .chat-sidebar .chat-item:hover .chat-item-delete {
    opacity: 1;
}

#library_ai_content .chat-sidebar .chat-item-delete:hover {
    background: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

#library_ai_content .chat-sidebar .chat-list-empty,
#library_ai_content .chat-sidebar .chat-list-loading {
    text-align: center;
    color: var(--text-tertiary);
    padding: 20px 0;
    font-size: 14px;
}

/* ==============================================================
   СТАТИСТИКА В САЙДБАРЕ (КОМПАКТНАЯ, ОДНА СТРОКА)
============================================================== */

#library_ai_content .chat-sidebar .sidebar-footer {
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

#library_ai_content .chat-sidebar .stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

#library_ai_content .chat-sidebar .stats-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

#library_ai_content .chat-sidebar .stats-item:hover {
    background: var(--bg-tertiary);
}

#library_ai_content .chat-sidebar .stats-icon {
    font-size: 14px;
    line-height: 1;
    opacity: 0.7;
}

#library_ai_content .chat-sidebar .stats-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1;
}

#library_ai_content .chat-sidebar .stats-divider {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    flex-shrink: 0;
}

#library_ai_content .chat-sidebar .stats-item:first-child .stats-number {
    color: var(--primary-color);
}

#library_ai_content .chat-sidebar .stats-item:last-child .stats-number {
    color: var(--secondary-color);
}

/* ==============================================================
   ОБЛАСТЬ ЧАТА СПРАВА
============================================================== */

#library_ai_content .chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    min-width: 0;
    overflow: hidden;
}

/* ХЕДЕР ЧАТА */
#library_ai_content .chat-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 8px 24px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    min-height: 48px;
}

#library_ai_content .chat-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

#library_ai_content .btn-tts-ai {
    padding: 6px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

#library_ai_content .btn-tts-ai:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

#library_ai_content .btn-tts-ai i {
    font-size: 18px;
}

#library_ai_content .btn-new-chat-header {
    padding: 6px 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
}

#library_ai_content .btn-new-chat-header:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

/* ==============================================================
   СООБЩЕНИЯ
============================================================== */

#library_ai_content .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 30px;
    scroll-behavior: smooth;
}

#library_ai_content .chat-messages::-webkit-scrollbar {
    width: 6px;
}

#library_ai_content .chat-messages::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-full);
}

#library_ai_content .chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--border-radius-full);
}

#library_ai_content .message {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    animation: fadeIn 0.3s ease;
}

#library_ai_content .message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    background: var(--bg-tertiary);
}

#library_ai_content .user-message .message-avatar {
    background: var(--primary-color);
    color: white;
}

#library_ai_content .ai-message .message-avatar {
    background: var(--secondary-color);
    color: white;
}

#library_ai_content .message-content {
    flex: 1;
    max-width: calc(100% - 48px);
}

#library_ai_content .message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    flex-wrap: wrap;
}

#library_ai_content .message-author {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

#library_ai_content .message-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

#library_ai_content .message-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    border-bottom-left-radius: 4px;
    word-wrap: break-word;
}

#library_ai_content .user-message .message-text {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 4px;
    border-bottom-left-radius: var(--border-radius-md);
}

/* Действия под сообщением */
#library_ai_content .message-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
    flex-wrap: wrap;
}

#library_ai_content .message-actions button {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    padding: 2px 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    color: var(--text-secondary);
    line-height: 1.5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
}

#library_ai_content .message-actions button:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

#library_ai_content .message-actions .btn-copy i,
#library_ai_content .message-actions .btn-retry i {
    font-size: 16px;
}

/* RATING */
#library_ai_content .rating-buttons {
    display: flex;
    gap: 4px;
}

#library_ai_content .rating-buttons .btn-like,
#library_ai_content .rating-buttons .btn-dislike {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    padding: 2px 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    color: var(--text-secondary);
    line-height: 1.5;
}

#library_ai_content .rating-buttons .btn-like:hover {
    background: rgba(76,175,80,0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

#library_ai_content .rating-buttons .btn-dislike:hover {
    background: rgba(244,67,54,0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

#library_ai_content .rating-buttons .btn-like.active {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

#library_ai_content .rating-buttons .btn-dislike.active {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

#library_ai_content .rating-buttons .btn-like:disabled,
#library_ai_content .rating-buttons .btn-dislike:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* RESPONSE TIME */
#library_ai_content .response-time-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
    font-size: 11px;
    font-weight: 600;
    background: rgba(76,175,80,0.15);
    color: var(--success-color);
}

/* TYPING */
#library_ai_content .typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}

#library_ai_content .typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

#library_ai_content .typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}
#library_ai_content .typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}
#library_ai_content .typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* EMPTY CHAT */
#library_ai_content .empty-chat {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
}

#library_ai_content .empty-chat-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

#library_ai_content .empty-chat h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

#library_ai_content .empty-chat p {
    color: var(--text-secondary);
}

/* ==============================================================
   ОБЛАСТЬ ВВОДА
============================================================== */

#library_ai_content .chat-input-area {
    padding: 12px 24px 20px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
    flex-shrink: 0;
}

#library_ai_content .input-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-full);
    padding: 4px 4px 4px 18px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

#library_ai_content .input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--primary-light);
}

#library_ai_content .chat-textarea {
    flex: 1;
    border: none;
    background: transparent;
    padding: 8px 0;
    font-size: 15px;
    line-height: 1.5;
    max-height: 150px;
    resize: none;
    outline: none;
    font-family: inherit;
    color: var(--text-primary);
    min-height: 36px;
}

#library_ai_content .chat-textarea::placeholder {
    color: var(--text-tertiary);
}

#library_ai_content .input-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

#library_ai_content .model-select {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    padding: 5px 30px 5px 12px;
    font-size: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
    font-family: inherit;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310a37f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 12px;
    transition: all var(--transition-fast);
    min-width: 90px;
    font-weight: 500;
    height: 32px;
}

#library_ai_content .model-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

#library_ai_content .model-select option {
    padding: 4px 8px;
    font-weight: 400;
    background: var(--bg-primary);
    color: var(--text-primary);
}

#library_ai_content .btn-ask-all {
    padding: 5px 10px;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    height: 32px;
}

#library_ai_content .btn-ask-all:hover {
    background: var(--secondary-hover);
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

#library_ai_content .btn-ask-all:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

#library_ai_content .btn-ask-all i {
    font-size: 14px;
}

#library_ai_content .btn-ask-all span {
    font-size: 12px;
}

#library_ai_content .btn-send {
    width: 38px;
    height: 38px;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

#library_ai_content .btn-send:hover:not(:disabled) {
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
}

#library_ai_content .btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#library_ai_content .input-footer {
    margin-top: 6px;
    text-align: right;
}

#library_ai_content .ai-status {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==============================================================
   СТАТИСТИКА
============================================================== */

#library_ai_content .stats-container {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

#library_ai_content .manager-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

#library_ai_content .manager-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

#library_ai_content .manager-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

#library_ai_content .stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 14px;
    text-align: center;
}

#library_ai_content .stat-card .stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

#library_ai_content .stat-card .stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

#library_ai_content .stats-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

#library_ai_content .stats-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#library_ai_content .chart-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 16px;
}

#library_ai_content .chart-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

#library_ai_content .chart-card canvas {
    width: 100% !important;
    height: 180px !important;
    max-height: 180px;
}

#library_ai_content .loading-small {
    text-align: center;
    padding: 20px;
    color: var(--text-tertiary);
}

/* USERS LIST */
#library_ai_content .users-stats-header {
    display: grid;
    grid-template-columns: 1fr 60px 80px;
    gap: 8px;
    font-weight: 600;
    font-size: 12px;
    color: var(--text-secondary);
    padding: 4px 0;
    border-bottom: 1px solid var(--border-color);
}

#library_ai_content .user-stat-item {
    display: grid;
    grid-template-columns: 1fr 60px 80px;
    gap: 8px;
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

#library_ai_content .user-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#library_ai_content .user-count {
    text-align: center;
    font-weight: 500;
}

#library_ai_content .user-satisfaction {
    display: flex;
    align-items: center;
    gap: 6px;
}

#library_ai_content .sat-bar {
    height: 6px;
    border-radius: var(--border-radius-full);
    background: var(--success-color);
    flex: 1;
}

#library_ai_content .sat-value {
    font-size: 12px;
    font-weight: 500;
    min-width: 36px;
    text-align: right;
}

#library_ai_content .table-stats {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

#library_ai_content .table-stats th,
#library_ai_content .table-stats td {
    padding: 6px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

#library_ai_content .table-stats th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
}

#library_ai_content .popular-list {
    list-style: none;
    padding: 0;
}

#library_ai_content .popular-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
}

#library_ai_content .popular-list .q-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-right: 10px;
}

#library_ai_content .popular-list .q-freq {
    font-weight: 500;
    color: var(--text-secondary);
    margin-right: 10px;
}

#library_ai_content .popular-list .q-sat {
    font-weight: 600;
    color: var(--primary-color);
}

/* ==============================================================
   AUTH FULL PAGE
============================================================== */

#library_ai_content .auth-full-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
    margin: 10px 20px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-color);
}

#library_ai_content .auth-container {
    text-align: center;
    padding: 40px;
    max-width: 400px;
}

#library_ai_content .auth-container .auth-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

#library_ai_content .auth-container h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

#library_ai_content .auth-container p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 16px;
}

#library_ai_content .auth-container .btn {
    padding: 12px 40px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-fast);
}

#library_ai_content .auth-container .btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==============================================================
   NOTIFICATION
============================================================== */

#library_ai_content .notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    border-radius: var(--border-radius-full);
    color: white;
    font-size: 14px;
    font-weight: 500;
    z-index: 100001;
    animation: slideInRight 0.3s ease;
    box-shadow: var(--shadow-lg);
}

#library_ai_content .notification.success {
    background: var(--success-color);
}

#library_ai_content .notification.error {
    background: var(--danger-color);
}

#library_ai_content .notification.info {
    background: var(--primary-color);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ==============================================================
   MATHJAX
============================================================== */

#library_ai_content .math-block {
    margin: 12px 0;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    overflow-x: auto;
    text-align: center;
}

#library_ai_content .math-inline {
    display: inline-block;
    margin: 0 2px;
    padding: 0 2px;
}

#library_ai_content .math-formula {
    font-family: 'Times New Roman', serif;
}

#library_ai_content mjx-container {
    font-size: 1.05em;
    padding: 2px 0;
}

#library_ai_content .user-message mjx-container,
#library_ai_content .user-message mjx-container * {
    color: white !important;
}

#library_ai_content .ai-message mjx-container,
#library_ai_content .system-message mjx-container {
    color: var(--text-primary) !important;
}

/* ==============================================================
   RESPONSIVE
============================================================== */

@media (max-width: 992px) {
    #library_ai_content .ai-layout {
        flex-direction: column;
        height: auto;
        min-height: calc(100vh - 60px);
        margin: 10px;
    }
    #library_ai_content .chat-layout {
        flex-direction: column;
        height: auto;
        min-height: calc(100vh - 60px);
    }
    #library_ai_content .chat-sidebar {
        width: 100%;
        min-width: 0;
        max-height: 250px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    #library_ai_content .stats-two-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #library_ai_content .chat-messages {
        padding: 12px;
    }
    #library_ai_content .message {
        gap: 8px;
    }
    #library_ai_content .message-avatar {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }
    #library_ai_content .message-text {
        font-size: 14px;
        padding: 10px 14px;
    }
    #library_ai_content .chat-sidebar {
        max-height: 200px;
    }
    #library_ai_content .chat-sidebar .sidebar-title {
        font-size: 16px;
    }
    #library_ai_content .ai-tabs .tab-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    #library_ai_content .ai-layout {
        margin: 5px;
        border-radius: var(--border-radius-md);
    }
    #library_ai_content .chat-sidebar {
        max-height: 180px;
    }
    #library_ai_content .chat-messages {
        padding: 8px;
    }
    #library_ai_content .input-wrapper {
        padding-left: 12px;
    }
    #library_ai_content .chat-textarea {
        font-size: 14px;
    }
    #library_ai_content .model-select {
        min-width: 60px;
        font-size: 10px;
        padding: 4px 20px 4px 8px;
        height: 28px;
    }
    #library_ai_content .btn-ask-all span {
        display: none;
    }
    #library_ai_content .btn-ask-all {
        padding: 4px 8px;
        height: 28px;
        font-size: 11px;
    }
    #library_ai_content .btn-send {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
}