/**
 * AI Chat Community - Complete Styles
 * Production-ready CSS with all components and responsive design
 * 
 * @package AIChatCommunity
 * @version 1.0.0
 */

/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */

:root {
    --ai-chat-primary: #3b82f6;
    --ai-chat-primary-dark: #2563eb;
    --ai-chat-secondary: #6b7280;
    --ai-chat-success: #10b981;
    --ai-chat-warning: #f59e0b;
    --ai-chat-error: #ef4444;
    
    --ai-chat-bg-primary: #ffffff;
    --ai-chat-bg-secondary: #f9fafb;
    --ai-chat-bg-tertiary: #f3f4f6;
    
    --ai-chat-text-primary: #111827;
    --ai-chat-text-secondary: #6b7280;
    --ai-chat-text-tertiary: #9ca3af;
    
    --ai-chat-border: #e5e7eb;
    --ai-chat-border-hover: #d1d5db;
    
    --ai-chat-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --ai-chat-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --ai-chat-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --ai-chat-radius: 8px;
    --ai-chat-radius-sm: 6px;
    --ai-chat-radius-lg: 12px;
    
    --ai-chat-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --ai-chat-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
.ai-chat-theme-dark {
    --ai-chat-bg-primary: #1f2937;
    --ai-chat-bg-secondary: #111827;
    --ai-chat-bg-tertiary: #374151;
    
    --ai-chat-text-primary: #f9fafb;
    --ai-chat-text-secondary: #d1d5db;
    --ai-chat-text-tertiary: #9ca3af;
    
    --ai-chat-border: #374151;
    --ai-chat-border-hover: #4b5563;
}

/* ==========================================================================
   Container & Layout
   ========================================================================== */

.ai-chat-container-wrapper {
    position: relative;
    /*border-radius: var(--ai-chat-radius);*/
    overflow: hidden;
    /*box-shadow: var(--ai-chat-shadow);*/
    background: var(--ai-chat-bg-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--ai-chat-text-primary);
}

.ai-chat-container {
    display: flex;
    height: 100%;
    background: var(--ai-chat-bg-secondary);
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.ai-chat-sidebar {
    width: 320px;
    background: var(--ai-chat-bg-primary);
    border-right: 1px solid var(--ai-chat-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--ai-chat-transition);
    transform: translateX(0);
}

.ai-chat-sidebar.collapsed {
    width: 0;
    min-width: 0;
    overflow: hidden;
    transform: translateX(-100%);
}

/* Sidebar Header/Top Bar */
.ai-chat-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--ai-chat-bg-primary);
    border-bottom: 1px solid var(--ai-chat-border);
    min-height: 48px;
}

.ai-chat-sidebar-logo {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--ai-chat-text-primary);
    /* Platz für zukünftiges Logo */
}

.ai-chat-theme-toggle-icon {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--ai-chat-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ai-chat-text-secondary);
    transition: var(--ai-chat-transition);
	padding: 0px;
}

.ai-chat-theme-toggle-icon:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-primary);
    transform: scale(1.05);
}

.ai-chat-theme-toggle-icon:active {
    transform: scale(0.95);
}

.ai-chat-theme-toggle-icon:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

/* Dark Theme Support for Icon Toggle */
.ai-chat-theme-dark .ai-chat-theme-toggle-icon {
    color: var(--ai-chat-text-secondary);
}

.ai-chat-theme-dark .ai-chat-theme-toggle-icon:hover {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-primary);
}

/* Agent Selection */
.ai-chat-agents {
    padding: 16px;
    border-bottom: 1px solid var(--ai-chat-border);
    background: var(--ai-chat-bg-primary);
}

.ai-chat-agent-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--ai-chat-radius);
    cursor: pointer;
    transition: var(--ai-chat-transition);
    text-align: left;
    font-size: 14px;
    font-weight: 500;
    color: var(--ai-chat-text-primary);
}

.ai-chat-agent-btn:last-child {
    margin-bottom: 0;
}

.ai-chat-agent-btn:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border-hover);
}

.ai-chat-agent-btn.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--ai-chat-primary);
    color: var(--ai-chat-primary);
}

.ai-chat-agent-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.ai-chat-agent-icon {
    padding: 8px;
    border-radius: var(--ai-chat-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.ai-chat-agent-icon.large {
    padding: 16px;
    width: 64px;
    height: 64px;
}

/* Zusätzliche CSS-Regeln für dynamische Agent-Loading */

/* Loading States für Agents */
.ai-chat-loading-agents {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ai-chat-bg-secondary);
    padding: 48px 20px;
}

.ai-chat-loading-agents .ai-chat-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--ai-chat-border);
    border-top: 4px solid var(--ai-chat-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.ai-chat-loading-agents p {
    color: var(--ai-chat-text-secondary);
    margin: 0;
    font-size: 14px;
}

/* No Agents State */
.ai-chat-no-agents {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ai-chat-bg-secondary);
    padding: 48px 20px;
    text-align: center;
}

.ai-chat-no-agents h3 {
    margin: 0 0 12px 0;
    color: var(--ai-chat-text-primary);
    font-size: 18px;
}

.ai-chat-no-agents p {
    margin: 0;
    color: var(--ai-chat-text-secondary);
    font-size: 14px;
}

/* No Agent Selected State */
.ai-chat-no-agent {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ai-chat-bg-secondary);
    padding: 32px;
}

.ai-chat-no-agent p {
    color: var(--ai-chat-text-secondary);
    margin: 0;
    font-size: 16px;
}

/* Agent Icon angepasst für dynamische Farben */
.ai-chat-agent-icon {
    /* Entferne die festen Farb-Klassen, da wir jetzt dynamische Farben verwenden */
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ai-chat-radius-sm);
    color: white;
    flex-shrink: 0;
    font-weight: 500;
}

/* Agent Icon Größen */
.ai-chat-agent-icon {
    padding: 8px;
    width: 32px;
    height: 32px;
    font-size: 16px;
}

.ai-chat-agent-icon.large {
    padding: 16px;
    width: 64px;
    height: 64px;
    font-size: 24px;
}

/* Entferne die alten festen Farb-Klassen */
/*
.ai-chat-agent-blue { background-color: #3b82f6; }
.ai-chat-agent-purple { background-color: #8b5cf6; }
.ai-chat-agent-green { background-color: #10b981; }
*/

/* New Chat Button */
.ai-chat-new-btn-container {
    padding: 16px;
    border-bottom: 1px solid var(--ai-chat-border);
    background: var(--ai-chat-bg-primary);
}

.ai-chat-new-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--ai-chat-primary);
    color: white;
    border: none;
    border-radius: var(--ai-chat-radius);
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: var(--ai-chat-transition);
}

.ai-chat-new-btn:hover:not(:disabled) {
    background: var(--ai-chat-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--ai-chat-shadow);
}

.ai-chat-new-btn:active {
    transform: translateY(0);
}

.ai-chat-new-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.ai-chat-new-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}


/* Chat History */
.ai-chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: var(--ai-chat-bg-primary);
}

.ai-chat-history::-webkit-scrollbar {
    width: 6px;
}

.ai-chat-history::-webkit-scrollbar-track {
    background: transparent;
}

.ai-chat-history::-webkit-scrollbar-thumb {
    background: var(--ai-chat-border);
    border-radius: 3px;
}

.ai-chat-history::-webkit-scrollbar-thumb:hover {
    background: var(--ai-chat-border-hover);
}

.ai-chat-history-item {
    position: relative;
    width: 100%;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--ai-chat-radius);
    cursor: pointer;
    transition: var(--ai-chat-transition);
    text-align: left;
    group: true;
}

.ai-chat-history-item:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border);
}

.ai-chat-history-item.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--ai-chat-primary);
}

.ai-chat-history-item svg {
    color: var(--ai-chat-text-tertiary);
    margin-top: 2px;
    flex-shrink: 0;
}

.ai-chat-history-content {
    min-width: 0;
    flex: 1;
}

.ai-chat-history-title {
    font-weight: 500;
    color: var(--ai-chat-text-primary);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-chat-history-preview {
    font-size: 12px;
    color: var(--ai-chat-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Old delete button styles removed - replaced by dropdown menu */

/* Loading States */
.ai-chat-sessions-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    color: var(--ai-chat-text-secondary);
    font-size: 12px;
}

.ai-chat-spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid var(--ai-chat-border);
    border-top: 2px solid var(--ai-chat-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.ai-chat-history-empty {
    text-align: center;
    padding: 32px 16px;
    color: var(--ai-chat-text-secondary);
}

.ai-chat-history-empty p {
    margin: 0 0 16px 0;
    font-size: 14px;
}

.ai-chat-create-first-btn {
    padding: 8px 16px;
    background: transparent;
    color: var(--ai-chat-primary);
    border: 1px solid var(--ai-chat-primary);
    border-radius: var(--ai-chat-radius-sm);
    cursor: pointer;
    font-size: 12px;
    transition: var(--ai-chat-transition);
}

.ai-chat-create-first-btn:hover {
    background: var(--ai-chat-primary);
    color: white;
}

/* Chat Session Items */
.ai-chat-session-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: var(--ai-chat-radius-sm);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--ai-chat-transition);
    outline: none;
}

.ai-chat-session-item:hover {
    background: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.1);
}

.ai-chat-session-item.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--ai-chat-primary);
}

.ai-chat-session-content {
    min-width: 0;
    flex: 1;
}

.ai-chat-session-title {
    font-weight: 500;
    color: var(--ai-chat-text-primary);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-chat-session-preview {
    font-size: 12px;
    color: var(--ai-chat-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-chat-session-delete {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    padding: 0;
    background: var(--ai-chat-error);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: var(--ai-chat-transition);
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
}

.ai-chat-session-item:hover .ai-chat-session-delete {
    opacity: 1;
}

.ai-chat-session-delete:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* ==========================================================================
   Main Chat Area
   ========================================================================== */

.ai-chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--ai-chat-bg-secondary);
    position: relative;
    transition: var(--ai-chat-transition);
}

.ai-chat-main.sidebar-collapsed {
    margin-left: 0;
}

/* Sidebar Toggle Button */
.ai-chat-sidebar-toggle {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 100;
    width: 40px;
    height: 40px;
    background: var(--ai-chat-bg-primary);
    border: 1px solid var(--ai-chat-border);
    border-radius: var(--ai-chat-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ai-chat-transition);
    box-shadow: var(--ai-chat-shadow-sm);
	padding: inherit;
}

.ai-chat-sidebar-toggle:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border-hover);
    box-shadow: var(--ai-chat-shadow);
    transform: translateY(-1px);
}

.ai-chat-sidebar-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.ai-chat-sidebar-toggle svg {
    color: var(--ai-chat-text-secondary);
    transition: var(--ai-chat-transition);
}

.ai-chat-sidebar-toggle:hover svg {
    color: var(--ai-chat-text-primary);
}

/* Chat Header */
.ai-chat-header {
    background: var(--ai-chat-bg-primary);
    border-bottom: 1px solid var(--ai-chat-border);
    padding: 16px 20px 16px 72px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 72px;
    transition: var(--ai-chat-transition);
}

.ai-chat-main.sidebar-collapsed .ai-chat-header {
    padding-left: 72px;
}

.ai-chat-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--ai-chat-text-primary);
}

.ai-chat-header p {
    margin: 0;
    font-size: 12px;
    color: var(--ai-chat-text-secondary);
}

.ai-chat-header-error {
    margin-left: auto;
    padding: 6px 12px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--ai-chat-error);
    border-radius: var(--ai-chat-radius-sm);
    font-size: 12px;
    font-weight: 500;
}

/* Messages Area */
.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--ai-chat-bg-secondary);
}

.ai-chat-messages::-webkit-scrollbar {
    width: 8px;
}

.ai-chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.ai-chat-messages::-webkit-scrollbar-thumb {
    background: var(--ai-chat-border);
    border-radius: 4px;
}

.ai-chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--ai-chat-border-hover);
}

.ai-chat-message {
    display: flex;
    margin-bottom: 4px;
}

.ai-chat-message.user {
    justify-content: flex-end;
}

.ai-chat-message.assistant {
    justify-content: flex-start;
}

.ai-chat-message-content {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 16px;
    word-wrap: break-word;
    white-space: pre-wrap;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
}

/* AI messages with markdown use normal white-space handling */
.ai-chat-message-content.assistant {
    white-space: normal;
}

.ai-chat-message-content.user {
    background: var(--ai-chat-primary);
    color: white;
    border-bottom-right-radius: 4px;
    margin-left: 48px;
}

.ai-chat-message-content.assistant {
    background: var(--ai-chat-bg-primary);
    color: var(--ai-chat-text-primary);
    border: 1px solid var(--ai-chat-border);
    border-bottom-left-radius: 4px;
    margin-right: 48px;
}

.ai-chat-message-content.assistant.error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--ai-chat-error);
}

/* Markdown Formatting in Messages */
.ai-chat-message-content p {
    margin: 0 0 8px 0;
}

.ai-chat-message-content p:last-child {
    margin-bottom: 0;
}

.ai-chat-message-content strong {
    font-weight: 600;
    color: var(--ai-chat-text-primary);
}

.ai-chat-message-content em {
    font-style: italic;
    color: var(--ai-chat-text-primary);
}

.ai-chat-message-content del {
    text-decoration: line-through;
    opacity: 0.7;
}

.ai-chat-message-content code {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    color: var(--ai-chat-text-primary);
}

.ai-chat-theme-dark .ai-chat-message-content code {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.ai-chat-message-content pre {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    padding: 12px;
    margin: 8px 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    line-height: 1.4;
}

.ai-chat-theme-dark .ai-chat-message-content pre {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.ai-chat-message-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
}

.ai-chat-message-content ul,
.ai-chat-message-content ol {
    margin: 8px 0;
    padding-left: 20px;
}

.ai-chat-message-content ul {
    list-style-type: disc;
}

.ai-chat-message-content ol {
    list-style-type: decimal;
}

.ai-chat-message-content li {
    margin: 4px 0;
    line-height: 1.4;
}

.ai-chat-message-content a {
    color: var(--ai-chat-primary);
    text-decoration: underline;
    transition: var(--ai-chat-transition-fast);
}

.ai-chat-message-content a:hover {
    color: var(--ai-chat-primary-dark);
    text-decoration: none;
}

.ai-chat-theme-dark .ai-chat-message-content a {
    color: #60a5fa;
}

.ai-chat-theme-dark .ai-chat-message-content a:hover {
    color: #93c5fd;
}

.ai-chat-message-content h1,
.ai-chat-message-content h2,
.ai-chat-message-content h3,
.ai-chat-message-content h4,
.ai-chat-message-content h5,
.ai-chat-message-content h6 {
    margin: 16px 0 8px 0;
    font-weight: 600;
    color: var(--ai-chat-text-primary);
    line-height: 1.3;
}

.ai-chat-message-content h1:first-child,
.ai-chat-message-content h2:first-child,
.ai-chat-message-content h3:first-child,
.ai-chat-message-content h4:first-child,
.ai-chat-message-content h5:first-child,
.ai-chat-message-content h6:first-child {
    margin-top: 0;
}

.ai-chat-message-content h1 {
    font-size: 1.5em;
    border-bottom: 2px solid var(--ai-chat-border);
    padding-bottom: 4px;
}

.ai-chat-message-content h2 {
    font-size: 1.3em;
    border-bottom: 1px solid var(--ai-chat-border);
    padding-bottom: 2px;
}

.ai-chat-message-content h3 {
    font-size: 1.2em;
}

.ai-chat-message-content h4 {
    font-size: 1.1em;
}

.ai-chat-message-content h5 {
    font-size: 1.05em;
}

.ai-chat-message-content h6 {
    font-size: 1em;
    color: var(--ai-chat-text-secondary);
}

/* Message Copy Functionality */
.ai-chat-message.assistant {
    position: relative;
}

.ai-chat-message-actions {
    position: absolute;
    bottom: -8px;
    right: 12px;
    opacity: 0;
    transition: var(--ai-chat-transition-fast);
    pointer-events: none;
}

.ai-chat-message-actions.visible {
    opacity: 1;
    pointer-events: auto;
}

.ai-chat-copy-btn {
    background: var(--ai-chat-bg-primary);
    border: 1px solid var(--ai-chat-border);
    border-radius: 6px;
    padding: 6px 8px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    transition: var(--ai-chat-transition-fast);
    box-shadow: var(--ai-chat-shadow-sm);
}

.ai-chat-copy-btn:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border-hover);
    transform: translateY(-1px);
    box-shadow: var(--ai-chat-shadow);
}

.ai-chat-copy-btn:active {
    transform: translateY(0);
    box-shadow: var(--ai-chat-shadow-sm);
}

.ai-chat-copy-btn.copied {
    background: var(--ai-chat-success);
    border-color: var(--ai-chat-success);
    color: white;
}

.ai-chat-copy-icon {
    line-height: 1;
    font-weight: normal;
    font-size: 13px;
}

/* Dark Theme Support */
.ai-chat-theme-dark .ai-chat-copy-btn {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-primary);
}

.ai-chat-theme-dark .ai-chat-copy-btn:hover {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border-hover);
}

/* Copy Button auf Touch-Geräten immer sichtbar */
@media (hover: none) and (pointer: coarse) {
    .ai-chat-message-actions {
        opacity: 1;
        pointer-events: auto;
    }
}

/* Chat History Item Dropdown Menu */
.ai-chat-history-item {
    position: relative;
}

.ai-chat-menu-container {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 1000;
}

.ai-chat-menu-btn {
    width: 24px;
    height: 24px;
    background: var(--ai-chat-bg-secondary);
    border: 1px solid var(--ai-chat-border);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--ai-chat-transition-fast);
    font-size: 12px;
    color: var(--ai-chat-text-secondary);
}

.ai-chat-menu-btn.visible {
    opacity: 1;
}

.ai-chat-menu-btn:hover {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border-hover);
    color: var(--ai-chat-text-primary);
}

.ai-chat-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 140px;
    background: var(--ai-chat-bg-primary);
    border: 1px solid var(--ai-chat-border);
    border-radius: var(--ai-chat-radius-sm);
    box-shadow: var(--ai-chat-shadow-lg);
    padding: 4px 0;
    z-index: 1001;
    margin-top: 4px;
}

.ai-chat-dropdown-item {
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ai-chat-text-primary);
    transition: var(--ai-chat-transition-fast);
}

.ai-chat-dropdown-item:hover {
    background: var(--ai-chat-bg-secondary);
}

.ai-chat-dropdown-item-danger {
    color: var(--ai-chat-error);
}

.ai-chat-dropdown-item-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.ai-chat-dropdown-icon {
    font-size: 12px;
    width: 16px;
    text-align: center;
}

/* Rename Input Field */
.ai-chat-rename-input {
    width: 100%;
    background: var(--ai-chat-bg-primary);
    border: 1px solid var(--ai-chat-primary);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ai-chat-text-primary);
    outline: none;
    margin: 0;
}

.ai-chat-rename-input:focus {
    border-color: var(--ai-chat-primary-dark);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

/* Touch devices - menu always visible */
@media (hover: none) and (pointer: coarse) {
    .ai-chat-menu-btn {
        opacity: 1;
    }
}

/* Dark Theme Support for Dropdown */
.ai-chat-theme-dark .ai-chat-menu-btn {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-secondary);
}

.ai-chat-theme-dark .ai-chat-menu-btn:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border-hover);
    color: var(--ai-chat-text-primary);
}

.ai-chat-theme-dark .ai-chat-dropdown-menu {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border);
}

.ai-chat-theme-dark .ai-chat-dropdown-item:hover {
    background: var(--ai-chat-bg-tertiary);
}

.ai-chat-theme-dark .ai-chat-rename-input {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-primary);
}

/* Typing Animation */
.ai-chat-typing {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 4px 0;
}

.ai-chat-typing span {
    width: 8px;
    height: 8px;
    background: var(--ai-chat-text-tertiary);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.ai-chat-typing span:nth-child(1) { animation-delay: -0.32s; }
.ai-chat-typing span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Input Area */
.ai-chat-input-area {
    background: var(--ai-chat-bg-primary);
    border-top: 1px solid var(--ai-chat-border);
    padding: 16px 20px;
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.ai-chat-input {
    flex: 1;
    resize: none;
    border: 1px solid var(--ai-chat-border);
    border-radius: var(--ai-chat-radius);
    padding: 12px 16px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    outline: none;
    transition: var(--ai-chat-transition);
    min-height: 44px;
    max-height: 120px;
    background: var(--ai-chat-bg-secondary);
    color: var(--ai-chat-text-primary);
}

.ai-chat-input::placeholder {
    color: var(--ai-chat-text-tertiary);
}

.ai-chat-input:focus {
    border-color: var(--ai-chat-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: var(--ai-chat-bg-primary);
}

.ai-chat-input:disabled {
    background: var(--ai-chat-bg-tertiary);
    color: var(--ai-chat-text-tertiary);
    cursor: not-allowed;
}

.ai-chat-send-btn {
    background: var(--ai-chat-primary);
    color: white;
    border: none;
    border-radius: var(--ai-chat-radius);
    padding: 12px;
    cursor: pointer;
    transition: var(--ai-chat-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    flex-shrink: 0;
}

.ai-chat-send-btn:hover:not(:disabled) {
    background: var(--ai-chat-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--ai-chat-shadow);
}

.ai-chat-send-btn:active {
    transform: translateY(0);
}

.ai-chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.ai-chat-send-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130,246,0.3);
}

/* Scroll to Bottom Button */
.ai-chat-scroll-to-bottom {
    position: absolute;
    bottom: 80px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: var(--ai-chat-bg-primary);
    border: 1px solid var(--ai-chat-border);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--ai-chat-shadow);
    transition: var(--ai-chat-transition);
    z-index: 100;
    color: var(--ai-chat-text-secondary);
}

.ai-chat-scroll-to-bottom:hover {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border-hover);
    color: var(--ai-chat-text-primary);
    transform: translateY(-2px);
    box-shadow: var(--ai-chat-shadow-lg);
}

.ai-chat-scroll-to-bottom:active {
    transform: translateY(0);
    box-shadow: var(--ai-chat-shadow);
}

.ai-chat-scroll-to-bottom:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.ai-chat-scroll-count {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 18px;
    height: 18px;
    background: var(--ai-chat-primary);
    color: white;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    padding: 2px 6px;
    box-shadow: var(--ai-chat-shadow-sm);
}

/* Dark Theme Support for Scroll Button */
.ai-chat-theme-dark .ai-chat-scroll-to-bottom {
    background: var(--ai-chat-bg-secondary);
    border-color: var(--ai-chat-border);
    color: var(--ai-chat-text-secondary);
}

.ai-chat-theme-dark .ai-chat-scroll-to-bottom:hover {
    background: var(--ai-chat-bg-tertiary);
    border-color: var(--ai-chat-border-hover);
    color: var(--ai-chat-text-primary);
}

/* Welcome Screen */
.ai-chat-welcome {
flex: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
padding: 48px 32px;
background: var(--ai-chat-bg-secondary);
}
.ai-chat-welcome h3 {
margin: 16px 0 8px 0;
font-size: 24px;
font-weight: 600;
color: var(--ai-chat-text-primary);
}
.ai-chat-welcome p {
margin: 0 0 24px 0;
color: var(--ai-chat-text-secondary);
max-width: 400px;
line-height: 1.6;
}

/* ==========================================================================
Error States
========================================================================== */
.ai-chat-error-state,
.ai-chat-error-boundary,
.ai-chat-init-error {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
background: var(--ai-chat-bg-secondary);
padding: 32px;
}
.ai-chat-error-content {
text-align: center;
max-width: 400px;
}
.ai-chat-error-content h3 {
margin: 0 0 12px 0;
font-size: 18px;
font-weight: 600;
color: var(--ai-chat-error);
}
.ai-chat-error-content p {
margin: 0 0 24px 0;
color: var(--ai-chat-text-secondary);
line-height: 1.5;
}
.ai-chat-retry-btn {
background: var(--ai-chat-error);
color: white;
border: none;
border-radius: var(--ai-chat-radius);
padding: 12px 24px;
font-size: 14px;
font-weight: 500;
cursor: pointer;
transition: var(--ai-chat-transition);
}
.ai-chat-retry-btn:hover {
background: #dc2626;
transform: translateY(-1px);
}
/* ==========================================================================
Login Required State
========================================================================== */
.ai-chat-login-required {
background: var(--ai-chat-bg-secondary);
border: 1px solid var(--ai-chat-border);
border-radius: var(--ai-chat-radius);
padding: 48px 32px;
text-align: center;
margin: 20px 0;
}
.ai-chat-login-message h3 {
margin: 0 0 16px 0;
font-size: 20px;
font-weight: 600;
color: var(--ai-chat-text-primary);
}
.ai-chat-login-message p {
margin: 0 0 32px 0;
color: var(--ai-chat-text-secondary);
font-size: 16px;
line-height: 1.5;
}
.ai-chat-login-buttons {
display: flex;
gap: 16px;
justify-content: center;
flex-wrap: wrap;
}
.ai-chat-login-btn,
.ai-chat-register-btn {
display: inline-flex;
align-items: center;
justify-content: center;
padding: 14px 28px;
border-radius: var(--ai-chat-radius);
text-decoration: none;
font-weight: 500;
font-size: 14px;
transition: var(--ai-chat-transition);
min-width: 120px;
}
.ai-chat-login-btn {
background: var(--ai-chat-primary);
color: white;
border: 1px solid var(--ai-chat-primary);
}
.ai-chat-login-btn:hover {
background: var(--ai-chat-primary-dark);
color: white;
text-decoration: none;
transform: translateY(-1px);
box-shadow: var(--ai-chat-shadow);
}
.ai-chat-register-btn {
background: transparent;
color: var(--ai-chat-primary);
border: 1px solid var(--ai-chat-primary);
}
.ai-chat-register-btn:hover {
background: var(--ai-chat-primary);
color: white;
text-decoration: none;
transform: translateY(-1px);
}
/* ==========================================================================
Animations
========================================================================== */
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
from { transform: translateX(-10px); opacity: 0; }
to { transform: translateX(0); opacity: 1; }
}
.ai-chat-message {
animation: fadeIn 0.3s ease-out;
}
.ai-chat-history-item {
animation: slideIn 0.2s ease-out;
}
/* ==========================================================================
Responsive Design
========================================================================== */
@media (max-width: 1024px) {
.ai-chat-sidebar {
width: 280px;
}
.ai-chat-message-content {
    max-width: 80%;
}
}
@media (max-width: 768px) {
.ai-chat-container {
flex-direction: column;
height: 100vh;
}

/* Mobile Sidebar Handling */
.ai-chat-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1000;
    background: var(--ai-chat-bg-primary);
    border-right: none;
    border-bottom: none;
    box-shadow: var(--ai-chat-shadow-lg);
}

.ai-chat-sidebar.collapsed {
    transform: translateX(-100%);
}

.ai-chat-main {
    width: 100%;
    min-height: 100vh;
}

.ai-chat-main.sidebar-collapsed {
    margin-left: 0;
}

.ai-chat-agents {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 12px 16px 16px 16px;
}

.ai-chat-agent-btn {
    flex-shrink: 0;
    min-width: 140px;
    margin-bottom: 0;
}

.ai-chat-history {
    max-height: 200px;
    padding: 12px 16px;
}

.ai-chat-main {
    flex: 1;
    min-height: 0;
}

.ai-chat-header {
    padding: 12px 16px;
    min-height: 60px;
}

.ai-chat-messages {
    padding: 16px;
}

.ai-chat-message-content {
    max-width: 90%;
    font-size: 13px;
    padding: 10px 14px;
}

.ai-chat-message-content.user {
    margin-left: 24px;
}

.ai-chat-message-content.assistant {
    margin-right: 24px;
}

.ai-chat-input-area {
    padding: 12px 16px;
    gap: 8px;
}

.ai-chat-input {
    font-size: 16px; /* Prevent zoom on iOS */
}

.ai-chat-welcome {
    padding: 32px 16px;
}

.ai-chat-welcome h3 {
    font-size: 20px;
}
}
@media (max-width: 480px) {
.ai-chat-container-wrapper {
border-radius: 0;
box-shadow: none;
height: 100vh !important;
}
.ai-chat-agents {
    flex-wrap: wrap;
    gap: 6px;
}

.ai-chat-agent-btn {
    min-width: calc(50% - 3px);
    padding: 10px 8px;
    gap: 8px;
    font-size: 12px;
}

.ai-chat-agent-icon {
    padding: 6px;
}

.ai-chat-new-btn {
    padding: 10px 12px;
    font-size: 13px;
}

.ai-chat-history-item {
    padding: 10px;
    gap: 10px;
}

.ai-chat-header h3 {
    font-size: 14px;
}

.ai-chat-header p {
    font-size: 11px;
}

.ai-chat-message-content {
    padding: 8px 12px;
    font-size: 12px;
}

.ai-chat-login-buttons {
    flex-direction: column;
    align-items: center;
}

.ai-chat-login-btn,
.ai-chat-register-btn {
    width: 100%;
    max-width: 200px;
}
}
/* ==========================================================================
Accessibility
========================================================================== */
.ai-chat-container-wrapper:focus-within {
outline: 2px solid var(--ai-chat-primary);
outline-offset: 2px;
}
/* Focus indicators */
.ai-chat-agent-btn:focus,
.ai-chat-history-item:focus,
.ai-chat-new-btn:focus,
.ai-chat-send-btn:focus,
.ai-chat-input:focus {
outline: none;
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}
/* High contrast mode support */
@media (prefers-contrast: high) {
:root {
--ai-chat-border: #000000;
--ai-chat-text-secondary: #000000;
}
.ai-chat-theme-dark {
    --ai-chat-border: #ffffff;
    --ai-chat-text-secondary: #ffffff;
}
}
/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
.ai-chat-spinner,
.ai-chat-spinner-small,
.ai-chat-typing span {
animation: none;
}
.ai-chat-message,
.ai-chat-history-item {
    animation: none;
}

* {
    transition: none !important;
    animation: none !important;
}
}
/* Print styles */
@media print {
.ai-chat-container-wrapper {
display: none;
}
}
/* ==========================================================================
Dark Theme Overrides
========================================================================== */
.ai-chat-theme-dark .ai-chat-spinner {
border-color: var(--ai-chat-border);
border-top-color: var(--ai-chat-primary);
}
.ai-chat-theme-dark .ai-chat-typing span {
background: var(--ai-chat-text-secondary);
}
.ai-chat-theme-dark .ai-chat-input:focus {
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}
/* ==========================================================================
Custom Scrollbars for Firefox
========================================================================== */
.ai-chat-history,
.ai-chat-messages {
scrollbar-width: thin;
scrollbar-color: var(--ai-chat-border) transparent;
}
/* ==========================================================================
Utility Classes
========================================================================== */
.ai-chat-sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
.ai-chat-hidden {
display: none !important;
}
.ai-chat-invisible {
visibility: hidden;
}
/* ==========================================================================
Performance Optimizations
========================================================================== */
.ai-chat-container * {
box-sizing: border-box;
}
.ai-chat-messages {
contain: layout style paint;
}
.ai-chat-message-content {
contain: layout style;
}
/* Force hardware acceleration for smooth animations */
.ai-chat-agent-btn,
.ai-chat-new-btn,
.ai-chat-send-btn,
.ai-chat-history-item {
transform: translateZ(0);
will-change: transform;
}