:root {
    --primary-color: #1e88e5;
    --secondary-color: #64b5f6;
    --accent-color: #0d47a1;
    --text-primary: #333;
    --text-secondary: #666;
    --background-primary: #fff;
    --background-secondary: #f5f7fb;
    --background-tertiary: #edf0f7;
    --ai-message-bg: #e3f2fd;
    --user-message-bg: #1e88e5;
    --user-message-text: #fff;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --animation-speed: 0.3s;
    --border-radius: 12px;
    --typing-indicator-color: var(--primary-color);
    --button-hover-bg: rgba(33, 150, 243, 0.1);
    --button-active-bg: rgba(33, 150, 243, 0.2);
    --box-shadow: 0 6px 16px -8px rgba(0, 0, 0, 0.1), 0 9px 28px 0 rgba(0, 0, 0, 0.05), 0 12px 48px 16px rgba(0, 0, 0, 0.03);
  }
  
  .dark-mode {
    --primary-color: #2196f3;
    --secondary-color: #64b5f6;
    --accent-color: #90caf9;
    --text-primary: #e0e0e0;
    --text-secondary: #aaaaaa;
    --background-primary: #1a1a1a;
    --background-secondary: #252525;
    --background-tertiary: #333333;
    --ai-message-bg: #1e2738;
    --user-message-bg: #2196f3;
    --user-message-text: #fff;
    --border-color: #444;
    --shadow-color: rgba(0, 0, 0, 0.6);
    --button-hover-bg: rgba(33, 150, 243, 0.15);
    --button-active-bg: rgba(33, 150, 243, 0.25);
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
      Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    transition: background-color var(--animation-speed),
      color var(--animation-speed);
  }
  
  body {
    background-color: var(--background-secondary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    font-size: 16px;
    line-height: 1.5;
  }
  
  .code-copy-container {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 10;
  }
  
  .code-copy-button {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ddd;
    border: none;
    border-radius: 4px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
  }
  
  .code-copy-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    transform: scale(1.05);
  }
  
  .code-copy-button.copied {
    background-color: #4caf50;
    color: white;
  }
  
  .container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 20px;
    background-image: linear-gradient(to bottom right, rgba(30, 136, 229, 0.05), rgba(30, 136, 229, 0.1));
  }
  
  .app-container {
    display: flex;
    width: 100%;
    max-width: 1200px;
    height: 85vh;
    background-color: var(--background-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(30, 136, 229, 0.1);
  }
  
  /* Sidebar Styles */
  .sidebar {
    width: 280px;
    background-color: var(--background-tertiary);
    padding: 20px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    transition: width 0.3s ease;
  }
  
  .logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 24px;
    color: var(--primary-color);
  }
  
  .logo i {
    margin-right: 10px;
    font-size: 24px;
    animation: pulse 2s infinite ease-in-out;
  }
  
  @keyframes pulse {
    0% {
      transform: scale(1);
    }
    50% {
      transform: scale(1.1);
    }
    100% {
      transform: scale(1);
    }
  }
  
  .new-chat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 20px;
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
  }
  
  .new-chat-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
  
  .new-chat-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 3px rgba(0, 0, 0, 0.15);
  }
  
  .new-chat-btn i {
    margin-right: 8px;
  }
  
  .history-container {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) transparent;
  }
  
  .history-container::-webkit-scrollbar {
    width: 6px;
  }
  
  .history-container::-webkit-scrollbar-track {
    background: transparent;
  }
  
  .history-container::-webkit-scrollbar-thumb {
    background-color: var(--secondary-color);
    border-radius: 10px;
  }
  
  .history-container h3, .model-settings h3 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-left: 5px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
  }
  
  .chat-history-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: var(--border-radius);
    margin-bottom: 5px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    position: relative;
    overflow: visible;
  }
  #chat-history span {
    white-space: nowrap;
    width: 16ch;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .chat-history-item:hover {
    background-color: var(--button-hover-bg);
    transform: translateX(2px);
  }
  
  .chat-history-item.active {
    background-color: rgba(33, 150, 243, 0.1);
    font-weight: 500;
    border-left: 3px solid var(--primary-color);
  }
  
  .chat-history-item i {
    margin-right: 10px;
    color: var(--text-secondary);
    font-size: 14px;
  }
  
  /* Model Settings Styles */
  .model-settings {
    margin-bottom: 20px;
    padding: 18px;
    background-color: rgba(33, 150, 243, 0.05);
    border-radius: var(--border-radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(33, 150, 243, 0.1);
  }
  
  .settings-control {
    margin-bottom: 15px;
  }
  
  .settings-control label, .model-selection label {
    display: block;
    font-size: 13px;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
  }
  
  .slider-container {
    display: flex;
    align-items: center;
  }
  
  .slider-container input {
    flex: 1;
    margin-right: 10px;
    -webkit-appearance: none;
    height: 6px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 5px;
    outline: none;
  }
  
  .slider-container input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: background 0.2s, transform 0.1s;
  }
  
  .slider-container input::-webkit-slider-thumb:hover {
    background: var(--secondary-color);
    transform: scale(1.1);
  }
  
  .slider-container span {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    min-width: 25px;
    text-align: center;
  }
  
  .model-selection select {
    width: 100%;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--background-primary);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
  }
  
  .model-selection select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.2);
  }
  
  .model-selection select:hover {
    border-color: var(--secondary-color);
  }
  
  .settings {
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
  }
  
  .settings button {
    display: flex;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px 5px;
    width: 100%;
    text-align: left;
    cursor: pointer;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: background-color 0.2s, color 0.2s, transform 0.1s;
  }
  
  .settings button:hover {
    background-color: var(--button-hover-bg);
    color: var(--primary-color);
    transform: translateX(2px);
  }
  
  .settings button:active {
    background-color: var(--button-active-bg);
  }
  
  .settings button i {
    margin-right: 10px;
    width: 16px;
  }
  
  /* Chat Container Styles */
  .chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--background-primary);
  }
  
  .chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 25px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--background-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }
  
  .current-chat-title {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
  }
  
  .header-actions {
    display: flex;
    gap: 8px;
  }
  
  .header-actions button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s, background-color 0.2s, transform 0.1s;
  }
  
  .header-actions button:hover {
    color: var(--primary-color);
    background-color: var(--button-hover-bg);
    transform: scale(1.05);
  }
  
  .header-actions button:active {
    transform: scale(0.95);
    background-color: var(--button-active-bg);
  }
  
  /* Chat messages */
  .messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) transparent;
  }
  
  .messages::-webkit-scrollbar {
    width: 6px;
  }
  
  .messages::-webkit-scrollbar-track {
    background: transparent;
  }
  
  .messages::-webkit-scrollbar-thumb {
    background-color: var(--secondary-color);
    border-radius: 10px;
  }
  
  .message {
    display: flex;
    margin: 25px;
    animation: fadeIn 0.3s ease-out;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .message-content {
    max-width: 80%;
    padding: 16px;
    border-radius: var(--border-radius);
    font-size: 15px;
    line-height: 1.6;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  
  .message.ai {
    justify-content: flex-start;
  }
  
  .message.user {
    justify-content: flex-end;
  }
  
  .message.ai .message-content {
    background-color: var(--ai-message-bg);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    border-top-left-radius: 0;
  }
  
  .message.user .message-content {
    background-color: var(--user-message-bg);
    color: var(--user-message-text);
    border-radius: var(--border-radius);
    border-bottom-right-radius: 0;
  }
  
  .message.ai .message-content h1 {
    font-size: 22px;
    margin: 16px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    color: var(--primary-color);
  }
  
  .message.ai .message-content h2 {
    font-size: 18px;
    margin: 14px 0 8px;
    color: var(--text-primary);
  }
  
  .message.ai .message-content h3 {
    font-size: 16px;
    margin: 12px 0 6px;
    color: var(--text-primary);
  }
  
  /* List styles for better readability */
  .message.ai .message-content ul,
  .message.ai .message-content ol {
    margin: 8px 0 12px;
    padding-left: 25px;
  }
  
  .message.ai .message-content li {
    margin-bottom: 6px;
  }
  
  /* Block quote styling */
  .message.ai .message-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 2px 0 2px 15px;
    margin: 12px 0;
    color: var(--text-secondary);
    background-color: rgba(33, 150, 243, 0.05);
    border-radius: 0 4px 4px 0;
  }
  
  /* Table styling */
  .message.ai .message-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
    border-radius: 4px;
    overflow: hidden;
  }
  
  .message.ai .message-content th,
  .message.ai .message-content td {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
  }
  
  .message.ai .message-content th {
    background-color: var(--background-tertiary);
    font-weight: 600;
  }
  
  .message.ai .message-content tr:nth-child(even) {
    background-color: rgba(33, 150, 243, 0.03);
  }
  
  /* Links styling */
  .message.ai .message-content a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s, border-bottom 0.2s;
    border-bottom: 1px solid transparent;
  }
  
  .message.ai .message-content a:hover {
    border-bottom: 1px solid var(--primary-color);
  }
  
  .hljs-keyword,
  .hljs-selector-tag,
  .hljs-addition {
    color: #c792ea;
  }
  
  .hljs-number,
  .hljs-string,
  .hljs-doctag,
  .hljs-regexp {
    color: #89ca78;
  }
  
  .hljs-title,
  .hljs-section,
  .hljs-built_in,
  .hljs-name {
    color: #e2b93d;
  }
  
  .hljs-variable,
  .hljs-template-variable,
  .hljs-selector-id,
  .hljs-class .hljs-title {
    color: #7fdbca;
  }
  
  .hljs-type,
  .hljs-tag {
    color: #e06c75;
  }
  
  /* Language badge for code blocks */
  pre::before {
    content: attr(class);
    position: absolute;
    top: 0;
    right: 0;
    padding: 3px 8px;
    font-size: 12px;
    color: #eee;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 0 8px 0 8px;
    display: block;
  }
  
  /* Horizontal rule */
  .message.ai .message-content hr {
    border: none;
    height: 1px;
    background-color: var(--border-color);
    margin: 15px 0;
  }
  
  .typing-indicator {
    display: flex;
    padding: 15px 25px;
    align-items: center;
    background-color: var(--ai-message-bg);
    border-radius: var(--border-radius);
    margin: 25px;
    max-width: 150px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.3s ease-out;
  }
  
  .typing-indicator span {
    font-size: 14px;
    margin-right: 10px;
    color: var(--text-secondary);
    font-weight: 500;
  }
  
  .typing-dot {
    width: 8px;
    height: 8px;
    margin: 0 2px;
    background-color: var(--typing-indicator-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: typingAnimation 1.5s infinite;
  }
  
  .typing-dot:nth-child(2) {
    animation-delay: 0.2s;
  }
  
  .typing-dot:nth-child(3) {
    animation-delay: 0.4s;
  }
  
  @keyframes typingAnimation {
    0% {
      transform: translateY(0px);
    }
    25% {
      transform: translateY(-5px);
    }
    50% {
      transform: translateY(0px);
    }
  }
  
  .input-area {
    padding: 15px 25px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--background-primary);
  }
  
  .input-container {
    display: flex;
    position: relative;
    background-color: var(--background-tertiary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  }
  
  /* Style for file upload button */
  #file-upload-button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    padding: 15px;
    cursor: pointer;
    transition: color 0.2s, transform 0.1s;
  }
  
  #file-upload-button:hover {
    color: var(--primary-color);
    transform: scale(1.1);
  }
  
  #file-upload-button:active {
    transform: scale(0.95);
  }
  
  textarea {
    flex: 1;
    border: none;
    background: none;
    padding: 15px;
    font-size: 15px;
    resize: none;
    max-height: 150px;
    color: var(--text-primary);
    outline: none;
    line-height: 1.5;
  }
  
  textarea::placeholder {
    color: var(--text-secondary);
  }
  
  #send-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s, transform 0.1s;
  }
  
  #send-button:hover {
    background-color: var(--secondary-color);
    transform: scale(1.05);
  }
  
  #send-button:active {
    transform: scale(0.95);
  }
  
  .disclaimer {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 12px;
    padding: 5px;
    border-radius: 12px;
    background-color: rgba(33, 150, 243, 0.05);
  }
  
  /* Rate limit info styling */
  .rate-limit-info {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    padding: 6px 12px;
    background-color: rgba(33, 150, 243, 0.1);
    border-radius: 15px;
    display: inline-block;
    font-weight: 500;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }
  
  /* Pending file preview (for selected file before send) */
  #pending-file-preview {
    display: none;
    margin: 10px 0;
    padding: 12px;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    background-color: rgba(33, 150, 243, 0.03);
  }
  
  /* Intro Message Styles */
  .intro-message {
    text-align: center;
    max-width: 600px;
    margin: 40px auto;
    padding: 40px;
    background-color: var(--background-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    animation: fadeIn 0.5s ease-out;
    border: 1px solid rgba(33, 150, 243, 0.1);
  }
  
  .intro-message h1 {
    color: var(--primary-color);
    font-size: 28px;
    margin-bottom: 15px;
    font-weight: 700;
  }
  
  .intro-message p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 16px;
  }
  
  .suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
  }
  
  .suggestion-chip {
    background-color: var(--background-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }
  
  .suggestion-chip:hover {
    background-color: var(--background-secondary);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
  }
  
  .suggestion-chip:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  }
  
  /* Code block styling */
  pre {
    position: relative;
    background-color: #282c34;
    border-radius: 8px;
    padding: 16px;
    padding-top: 35px;
    overflow-x: auto;
    margin: 12px 0;
    border: 1px solid #3e4451;
    color: #edf0f7;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  }
  
  code {
    font-family: "Fira Code", "JetBrains Mono", "Courier New", Courier, monospace;
    font-size: 14px;
  }
  
  pre code {
    white-space: pre;
    font-size: 14px;
    line-height: 1.5;
  }
  
  :not(pre) > code {
    background-color: rgba(125, 125, 125, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
    color: var(--primary-color);
    font-size: 90%;
    font-weight: 500;
  }
  
  /* Chat options button and menu */
  .chat-options-button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 5px;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    transition: color 0.2s, transform 0.1s;
  }
  
  .chat-options-button:hover {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
  }
  
  .chat-options-menu {
    position: absolute;
    right: 10px;
    top: 100%;
    background-color: var(--background-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    z-index: 100;
    min-width: 150px;
  }
  
  .chat-options-item {
    padding: 10px 15px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s, color 0.2s;
    font-size: 14px;
  }
  
  .chat-options-item:hover {
    background-color: var(--button-hover-bg);
    color: var(--primary-color);
  }
  
  .chat-options-item:first-child {
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
  }
  
  .chat-options-item:last-child {
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
  }
  
  /* Media Queries for Responsiveness */
  @media (max-width: 1024px) {
    .app-container {
      max-width: 95%;
      height: 90vh;
    }
  }
  
  @media (max-width: 768px) {
    .app-container {
      flex-direction: column;
      height: 95vh;
    }
    
    .sidebar {
      width: 100%;
      max-height: 40%;
      border-right: none;
      border-bottom: 1px solid var(--border-color);
    }
    
    .message-content {
      max-width: 90%;
    }
  }
  
  @media (max-width: 480px) {
    .container {
      padding: 10px;
    }
    
    .message {
      margin: 15px 10px;
    }
    
    .message-content {
      max-width: 95%;
      padding: 12px;
    }
    
    .chat-header {
      padding: 12px 15px;
    }
    
    .input-area {
      padding: 10px 15px 15px;
    }
    
    .suggestion-chip {
      padding: 6px 12px;
      font-size: 13px;
    }
  }
  
  /* Toggle switch for web search */
  .toggle-container {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    margin-top: 5px;
  }
  
  .toggle-container input {
    opacity: 0;
    width: 0;
    height: 0;
  }
  
  .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 22px;
  }
  
  .toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
  }
  
  input:checked + .toggle-slider {
    background-color: var(--primary-color);
  }
  
  input:checked + .toggle-slider:before {
    transform: translateX(18px);
  }
  
  .dark-mode .toggle-slider {
    background-color: #555;
  }
  
  .dark-mode input:checked + .toggle-slider {
    background-color: var(--primary-color);
  }
  
  /* Web search results styling */
  .web-search-results {
    background-color: var(--accent-light);
    border-radius: 8px;
    padding: 12px;
    margin-top: 10px;
    font-size: 0.85em;
  }
  
  .dark-mode .web-search-results {
    background-color: var(--accent-dark);
  }
  
  .web-search-results .source {
    color: var(--accent-color);
    font-weight: bold;
    margin-bottom: 4px;
  }
  
  .web-search-results .snippet {
    color: var(--text-color);
  }
  
  /* Image message styling */
  .image-message {
    max-width: 100%;
    border-radius: 8px;
    margin: 8px 0;
  }
  
  .message img {
    max-width: 300px;
    max-height: 300px;
    border-radius: 8px;
    margin: 8px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }
  
  /* Thinking indicator */
  .thinking {
    display: inline-block;
    position: relative;
    padding-right: 20px;
    color: var(--text-color);
    font-style: italic;
    animation: pulse 1.5s infinite;
  }
  
  @keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
  }