.chat_area {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    font-family: var(--font-family);
}

.chat_messages {
    flex: 1;
    padding: 15px;
    border-radius: 15px;
    margin-bottom: 15px;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.chat_messages::-webkit-scrollbar {
    width: 6px;
}

.chat_messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat_messages::-webkit-scrollbar-thumb {
    background: var(--color-gray-disabled);
    border-radius: 3px;
}

.chat_messages::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray);
}

.messages_container {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    
}

.messages_spacer {
    flex: 1;
    min-height: 20px;
}

.chat_input {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    flex-shrink: 0;
    flex-direction: column;
    transition: all 0.2s ease;
}

.chat_input.drag_over {
    background-color: var(--color-secondary-disabled);
    border: 2px dashed var(--color-secondary);
    border-radius: 12px;
    padding: 8px;
}

.input_row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    width: 100%;
}

.message_input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-gray-disabled);
    border-radius: 12px;
    outline: none;
    font-size: 14px;
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
}

.message_input:focus {
    border-color: var(--color-secondary);
}

.message_input:disabled {
    background-color: var(--color-surface);
    cursor: not-allowed;
    opacity: 0.6;
}

.attachment_button {
    height: 48px;
    width: 48px;
    background-color: var(--color-secondary-disabled);
    color: var(--color-secondary);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    font-family: var(--font-family);
}

.attachment_button:hover {
    background-color: var(--color-secondary-hover);
    color: var(--color-bg);
}

.attachment_button:disabled {
    background-color: var(--color-surface);
    cursor: not-allowed;
    opacity: 0.6;
}

.attached_files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    margin-bottom: 5px;
}

.attached_file {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    background-color: var(--color-secondary-disabled);
    border: 1px solid var(--color-secondary);
    border-radius: 8px;
    font-size: 12px;
    color: var(--color-secondary);
    font-family: var(--font-family);
}

.attached_file_icon {
    font-size: 16px;
}

.attached_file_name {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attached_file_remove {
    background: none;
    border: none;
    color: var(--color-gray);
    cursor: pointer;
    padding: 0;
    margin-left: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.attached_file_remove:hover {
    background-color: var(--color-gray-disabled);
    color: var(--color-text);
}

.send_button {
    height: 48px;
    width: 48px;
    background-color: var(--color-secondary);
    color: var(--color-bg);
    border: 1px solid var(--color-secondary);
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
}

.send_button:hover {
    background-color: var(--color-secondary-hover);
}

.send_button_icon {
    height: 60%;
    width: 60%;
    margin: none;
    padding: none;
}

.send_button:disabled {
    background-color: var(--color-gray-disabled);
    cursor: not-allowed;
    opacity: 0.6;
    border: 1px solid var(--color-gray-disabled);
}

.stop_button {
    padding: 12px 12px;
    height: 48px;
    width: 48px;
    background-color: var(--color-red);
    color: var(--color-bg);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
}

.stop_button:hover {
    background-color: var(--color-red-hover);
}

.stop_button:disabled {
    background-color: var(--color-gray-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}

.loading_message {
    padding: 10px;
    background-color: var(--color-secondary-disabled);
    border-left: 4px solid var(--color-secondary);
    border-radius: 4px;
    margin-bottom: 10px;
}

.loading_message p {
    margin: 0;
    color: var(--color-secondary);
    font-size: 14px;
    font-family: var(--font-family);
}

.error_message {
    padding: 10px;
    background-color: var(--color-red-disabled);
    border-left: 4px solid var(--color-red);
    border-radius: 4px;
    margin-bottom: 10px;
}

.error_message p {
    margin: 0;
    color: var(--color-red);
    font-size: 14px;
    font-family: var(--font-family);
}

.message {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 12px;
    max-width: 80%;
    font-family: var(--font-family);
}

.message_user {
    background-color: var(--color-secondary);
    color: var(--color-bg);
    margin-left: auto;
    margin-right: 0;
}

.message_assistant {
    background-color: var(--color-surface);
    color: var(--color-text);
    margin-left: 0;
    margin-right: auto;
}

.message_system {
    background-color: var(--color-primary-disabled);
    color: var(--color-primary);
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.message_role {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    opacity: 0.8;
    font-family: var(--font-family);
}

.message_content {
    font-size: 14px;
    line-height: 1.4;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-family);
}

.message_timestamp {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.6;
    font-family: var(--font-family);
}

.placeholder_text {
    text-align: center;
    color: var(--color-gray);
    font-style: italic;
    margin: 20px 0;
    font-family: var(--font-family);
}

.workflow_status {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    margin: 5px 0;
}

.workflow_status p {
    margin: 0;
    font-size: 14px;
    color: var(--color-gray);
    font-family: var(--font-family);
}

.retry_container {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--color-red-disabled);
    border: 1px solid var(--color-red);
    border-radius: 12px;
}

.failed_message {
    font-size: 14px;
    color: var(--color-red);
    font-family: var(--font-family);
    font-weight: 500;
}

.retry_button {
    background-color: var(--color-primary);
    color: var(--color-bg);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    font-family: var(--font-family);
    transition: background-color 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

.retry_button:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.retry_button:disabled {
    background-color: var(--color-gray-disabled);
    cursor: not-allowed;
    transform: none;
    opacity: 0.6;
}

.completion_message {
    padding: 10px 12px;
    background-color: var(--color-secondary-disabled);
    border-left: 4px solid var(--color-secondary);
    border-radius: 4px;
    margin-bottom: 10px;
    text-align: center;
}

.completion_message p {
    margin: 0 0 10px 0;
    color: var(--color-secondary);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-family);
}

.new_workflow_button {
    background-color: var(--color-secondary);
    color: var(--color-bg);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-family: var(--font-family);
}

.new_workflow_button:hover {
    background-color: var(--color-secondary-hover);
}

.message_documents {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.document_item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-gray-disabled);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 13px;
}

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

.message_assistant .document_item {
    background-color: var(--color-bg);
    border-color: var(--color-gray-disabled);
}

.message_assistant .document_item:hover {
    border-color: var(--color-primary);
    background-color: var(--color-surface);
}

.document_icon {
    font-size: 16px;
    color: var(--color-secondary);
    flex-shrink: 0;


}

.document_info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.document_name {
    font-weight: 500;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-family);
}

.document_meta {
    display: flex;
    gap: 8px;
    font-size: 11px;
    color: var(--color-gray);
    font-family: var(--font-family);
}

.document_size {
    font-size: 11px;
    color: var(--color-gray);
}

.document_type {
    font-size: 11px;
    color: var(--color-gray);
}

.document_actions {
    display: flex;
    gap: 4px;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.document_item:hover .document_actions {
    opacity: 1;
}

.document_action_button {
    background: none;
    border: none;
    color: var(--color-gray);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.document_action_button:hover {
    background-color: var(--color-surface);
    color: var(--color-text);
}

.message_assistant .document_action_button {
    color: var(--color-gray);
}

.message_assistant .document_action_button:hover {
    background-color: var(--color-surface);
    color: var(--color-text);
}