/* Chat Interface Styles */

/* Loading Indicator - Inline below assistant messages */
.loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 0;
    margin-top: 8px;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loading-indicator.complete {
    opacity: 0.6;
}

.loading-indicator .spinner {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: radial-gradient(circle, #FFD700 0%, #4285f4 50%, #8B5CF6 100%);
    animation: burst 1.2s ease-in-out infinite;
}

.loading-indicator.complete .spinner {
    animation: none;
    opacity: 0.4;
}

@keyframes burst {
    0% {
        transform: scale(0.5);
        opacity: 0.3;
        box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.7);
    }
    50% {
        transform: scale(1);
        opacity: 1;
        box-shadow: 0 0 15px 5px rgba(66, 133, 244, 0.5);
    }
    100% {
        transform: scale(0.5);
        opacity: 0.3;
        box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.7);
    }
}

/* Sidebar Styles */
.sidebar {
    width: 280px;
    min-width: 280px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.sidebar-header {
    padding: var(--spacing-md) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.btn-new-chat {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
}

.btn-new-chat:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.sidebar-search {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-search input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    background-color: var(--background-color);
    transition: all var(--transition-fast);
}

.sidebar-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.chat-history-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.chat-history-item {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border: 1px solid transparent;
    position: relative;
}

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

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

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

.chat-history-item-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    outline: none;
    padding: 2px 4px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.chat-history-item-title:focus {
    background-color: var(--background-color);
    box-shadow: 0 0 0 2px var(--primary-color);
    white-space: normal;
    text-overflow: clip;
}

.chat-history-item-title:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

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

.chat-history-item-date {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.chat-history-item-delete {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    background-color: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-fast);
}

.chat-history-item-delete:hover {
    background-color: #fee;
    color: #c00;
}

.chat-history-item-delete:active {
    transform: scale(0.95);
}

.chat-history-item.active .chat-history-item-delete {
    opacity: 0.6;
}

.chat-history-item.active .chat-history-item-delete:hover {
    opacity: 1;
}

/* Actions Section */
.sidebar-section {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
}

.sidebar-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(0, 0, 0, 0.02);
}

.sidebar-section-header h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin: 0;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.actions-section {
    max-height: 300px;
    overflow-y: auto;
}

.actions-list {
    padding: var(--spacing-sm);
}

.action-item {
    background-color: var(--message-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.action-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.action-item-prompt {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
    line-height: 1.4;
    word-break: break-word;
}

.action-item-schedule {
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-xs);
}

.action-item-delete {
    background: transparent;
    border: none;
    padding: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.action-item-delete:hover {
    color: var(--error-color);
    background-color: rgba(239, 68, 68, 0.1);
}

.action-item-responses {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.action-response {
    font-size: 12px;
    padding: var(--spacing-xs);
    background-color: rgba(0, 0, 0, 0.02);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-xs);
}

.action-response-content {
    flex: 1;
    color: var(--text-secondary);
    line-height: 1.3;
    word-break: break-word;
    cursor: pointer;
    transition: color 0.2s ease;
}

.action-response-content:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.action-response-time {
    font-size: 10px;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.action-response-delete {
    background: transparent;
    border: none;
    padding: 2px;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.action-response-delete:hover {
    color: var(--error-color);
}

.empty-actions {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Response Modal */
.response-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
}

.response-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.response-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.response-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.response-modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.response-modal-close {
    background: transparent;
    border: none;
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.response-modal-close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.response-modal-body {
    padding: var(--spacing-md);
    overflow-y: auto;
    flex: 1;
}

.response-modal-time {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
}

.response-modal-text {
    color: var(--text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 0;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-email {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-logout {
    padding: var(--spacing-sm);
    color: var(--text-secondary);
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--background-color);
}

.chat-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--background-color);
    z-index: var(--z-header);
}

.chat-header h1 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.chat-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    scroll-behavior: smooth;
}

.welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
}

.welcome-content h2 {
    font-size: var(--font-size-xxl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.welcome-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
}

.chip {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.chip:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Message Bubbles - Messaging App Style */
.message {
    position: relative;
    margin-bottom: var(--spacing-lg);
    animation: messageSlideIn var(--transition-normal);
    display: flex;
    flex-direction: column;
}

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

/* Hide headers - no labels */
.message-header {
    display: none;
}

.message-avatar {
    display: none;
}

.message-sender {
    display: none;
}

.message-timestamp {
    display: none;
}

/* User messages - right aligned with subtle background */
.message.user {
    align-items: flex-end;
}

.message.user .message-content {
    max-width: 75%;
    background-color: rgba(96, 165, 250, 0.12);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Assistant messages - left aligned, no background */
.message.assistant {
    align-items: flex-start;
}

.message.assistant .message-content {
    max-width: 85%;
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--text-primary);
    padding: var(--spacing-sm) 0;
}

/* Markdown styling for both user and assistant messages */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

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

.message-content h1 {
    font-size: 1.8em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.message-content h2 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

.message-content h3 {
    font-size: 1.3em;
}

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

.message-content p {
    margin-bottom: var(--spacing-md);
}

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

.message-content p:first-child {
    margin-top: 0;
}

.message-content ul,
.message-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-xl);
}

.message-content li {
    margin-bottom: var(--spacing-xs);
}

.message-content blockquote {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--primary-color);
    color: var(--text-secondary);
    font-style: italic;
}

.message-content a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.message-content a:hover {
    border-bottom-color: var(--primary-color);
}

.message-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

.message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.message-content th,
.message-content td {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    text-align: left;
}

.message-content th {
    background-color: var(--surface-color);
    font-weight: 600;
}

.message-content pre {
    background-color: #1e1e1e;
    color: #d4d4d4;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.message-content code {
    background-color: rgba(110, 118, 129, 0.15);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: #d73a49;
}

.message.user .message-content code {
    background-color: rgba(96, 165, 250, 0.25);
    color: #1e40af;
}

.message-content pre code {
    background-color: transparent;
    padding: 0;
    color: inherit;
}

.message-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

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

.message-content em {
    font-style: italic;
}

.message.typing .message-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.typing-indicator {
    display: flex;
    gap: 4px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-tertiary);
    animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Message Action Buttons */
.message-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.message.assistant:hover .message-actions {
    opacity: 1;
}

.btn-message-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-message-action:hover {
    background-color: var(--surface-color);
    color: var(--text-primary);
    border-color: var(--text-tertiary);
    transform: none;
    box-shadow: none;
}

.btn-message-action svg {
    width: 14px;
    height: 14px;
}

.btn-message-action[data-action="rate"] svg {
    fill: none;
}

.btn-message-action[data-action="rate"]:hover svg {
    fill: var(--warning-color);
    stroke: var(--warning-color);
}

.btn-message-action[data-action="copy"]:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-message-action[data-action="redo"]:hover {
    color: var(--success-color);
    border-color: var(--success-color);
}

/* Chat Input */
.chat-input-container {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background-color: var(--background-color);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.chat-input {
    flex: 1;
    border: none;
    background-color: transparent;
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    resize: none;
    outline: none;
    max-height: 200px;
    line-height: 1.5;
    padding: var(--spacing-sm);
    color: var(--text-primary);
}

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

.input-actions {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

/* Private Checkbox */
.private-checkbox-container {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    user-select: none;
}

.private-checkbox-container:hover {
    background-color: var(--surface-color);
}

.private-checkbox-container input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.private-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
}

.private-checkbox-container input[type="checkbox"]:checked ~ .private-label {
    color: var(--primary-color);
    font-weight: 600;
}

.btn-send {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.btn-send:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.btn-send:disabled {
    background-color: var(--surface-color);
    color: var(--text-tertiary);
}

/* Voice Button */
#voiceBtn {
    transition: all var(--transition-normal);
}

#voiceBtn.listening {
    background-color: var(--error-color);
    color: white;
    animation: voicePulse 1.5s ease-in-out infinite;
}

#voiceBtn.listening svg {
    stroke: white;
}

#voiceBtn.processing {
    background-color: var(--warning-color);
    color: white;
}

#voiceBtn.processing svg {
    stroke: white;
}

#voiceBtn.error {
    background-color: var(--error-color);
    color: white;
}

#voiceBtn.error svg {
    stroke: white;
}

@keyframes voicePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 8px rgba(220, 38, 38, 0);
    }
}

.input-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--spacing-xs);
}

.char-count {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        z-index: var(--z-sidebar);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-content {
        width: 100%;
    }
    
    .chat-messages {
        padding: var(--spacing-md);
    }
    
    .chat-input-container {
        padding: var(--spacing-sm);
    }
}

/* Empty State */
.empty-history {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
}

.empty-history-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-history-text {
    font-size: var(--font-size-sm);
}

/* Folder Styles */
.btn-new-folder {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background-color: transparent;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

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

.folder-item {
    margin-bottom: var(--spacing-xs);
}

.folder-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    position: relative;
}

.folder-header:hover {
    background-color: var(--background-color);
}

.folder-header:hover .folder-actions {
    opacity: 1;
}

.folder-icon {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
}

.folder-icon.expanded {
    transform: rotate(90deg);
}

.folder-icon-folder {
    width: 16px;
    height: 16px;
    color: var(--primary-color);
}

.folder-name {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.folder-actions {
    display: flex;
    gap: 4px;
   opacity: 0;
    transition: opacity var(--transition-fast);
}

.folder-action-btn {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    background-color: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.folder-action-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.folder-action-btn[data-action="delete"]:hover {
    background-color: #fee;
    color: #c00;
}

.folder-item.drag-over .folder-header {
    background-color: var(--primary-light);
    border: 2px dashed var(--primary-color);
}

.chat-history-item.dragging {
    opacity: 0.5;
}

/* Uploaded Documents Area */
.uploaded-documents {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    background: var(--message-user-bg);
    max-height: 150px;
    overflow-y: auto;
}

.uploaded-documents.hidden {
    display: none;
}

.uploaded-doc-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: var(--spacing-xs);
}

.uploaded-doc-info {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.uploaded-doc-icon {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-sm);
    flex-shrink: 0;
}

.uploaded-doc-icon svg {
    width: 16px;
    height: 16px;
}

.uploaded-doc-details {
    flex: 1;
    min-width: 0;
}

.uploaded-doc-name {
    font-size: var(--font-size-sm);
font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.uploaded-doc-meta {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.uploaded-doc-remove {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    flex-shrink: 0;
    margin-left: var(--spacing-sm);
}

.uploaded-doc-remove:hover {
    background: var(--hover-bg);
    color: var(--error-color);
}

.uploaded-doc-remove svg {
    width: 16px;
    height: 16px;
}

/* Rating Popup Styles */
.rating-popup {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 8px;
    background: var(--bg-primary, #ffffff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10000;
    min-width: 240px;
}

.rating-popup-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rating-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #333);
    margin-bottom: 4px;
}

.rating-stars {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.star-btn {
    background: transparent;
    border: none;
    font-size: 28px;
    color: #ddd;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 4px;
    line-height: 1;
}

.star-btn:hover,
.star-btn.hover {
    color: #ffd700;
    transform: scale(1.2);
}

.star-btn:active {
    transform: scale(1.1);
}

.rating-cancel {
    padding: 8px 16px;
    background: var(--bg-secondary, #f5f5f5);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary, #666);
    transition: all 0.2s ease;
}

.rating-cancel:hover {
    background: var(--hover-bg, #e8e8e8);
    border-color: #ccc;
}

/* Toast Notification Styles */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-primary, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 8px;
    padding: 12px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 2000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    max-width: 400px;
    font-size: 14px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.toast-success {
    border-left: 4px solid #4caf50;
    color: #2e7d32;
}

.toast.toast-error {
    border-left: 4px solid #f44336;
    color: #c62828;
}

.toast.toast-info {
    border-left: 4px solid #2196f3;
    color: #1565c0;
}