/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

:root {
    /* Light Mode Colors */
    --bg-color-light: #ffffff;
    --text-color-light: #343541;
    --sidebar-bg-light: #f7f7f8;
    --sidebar-hover-light: #e5e5e5;
    --border-color-light: #e5e5e5;
    --input-bg-light: #ffffff;
    --button-bg-light: #f7f7f8;
    --button-hover-light: #e5e5e5;
    --ai-message-bg-light: #f7f7f8;
    --user-message-bg-light: #ffffff;
    --code-bg-light: #f7f7f8;
    
    /* Dark Mode Colors */
    --bg-color-dark: #343541;
    --text-color-dark: #ececf1;
    --sidebar-bg-dark: #202123;
    --sidebar-hover-dark: #2a2b32;
    --border-color-dark: #4d4d4f;
    --input-bg-dark: #40414f;
    --button-bg-dark: #40414f;
    --button-hover-dark: #565869;
    --ai-message-bg-dark: #444654;
    --user-message-bg-dark: #343541;
    --code-bg-dark: #1e1e2f;
}

body {
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
}

/* App Container */
.app-container {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* Sidebar Styles */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg-light);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color-light);
    transition: background-color 0.3s;
}

body.dark-mode .sidebar {
    background-color: var(--sidebar-bg-dark);
    border-right-color: var(--border-color-dark);
}

.sidebar-header {
    padding: 10px;
    border-bottom: 1px solid var(--border-color-light);
}

body.dark-mode .sidebar-header {
    border-bottom-color: var(--border-color-dark);
}

.new-chat-btn {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color-light);
    background-color: transparent;
    color: var(--text-color-light);
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
    transition: background-color 0.2s;
}

body.dark-mode .new-chat-btn {
    color: var(--text-color-dark);
    border-color: var(--border-color-dark);
}

.new-chat-btn:hover {
    background-color: var(--sidebar-hover-light);
}

body.dark-mode .new-chat-btn:hover {
    background-color: var(--sidebar-hover-dark);
}

.new-chat-btn i {
    margin-right: 10px;
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.chat-item {
    padding: 10px;
    margin-bottom: 5px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
    transition: background-color 0.2s;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.chat-item:hover {
    background-color: var(--sidebar-hover-light);
}

body.dark-mode .chat-item:hover {
    background-color: var(--sidebar-hover-dark);
}

.chat-item i {
    margin-right: 10px;
}

.sidebar-footer {
    padding: 10px;
    border-top: 1px solid var(--border-color-light);
}

body.dark-mode .sidebar-footer {
    border-top-color: var(--border-color-dark);
}

.theme-toggle-btn {
    width: 100%;
    padding: 10px;
    background-color: transparent;
    color: var(--text-color-light);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
    margin-bottom: 10px;
    transition: background-color 0.2s;
}

body.dark-mode .theme-toggle-btn {
    color: var(--text-color-dark);
}

.theme-toggle-btn:hover {
    background-color: var(--sidebar-hover-light);
}

body.dark-mode .theme-toggle-btn:hover {
    background-color: var(--sidebar-hover-dark);
}

.theme-toggle-btn i {
    margin-right: 10px;
}

.user-info {
    display: flex;
    align-items: center;
    padding: 10px;
    font-size: 14px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.user-info:hover {
    background-color: var(--sidebar-hover-light);
}

body.dark-mode .user-info:hover {
    background-color: var(--sidebar-hover-dark);
}

.user-info i {
    margin-right: 10px;
}

/* Main Content Styles */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    position: relative;
}

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 20px;
    text-align: center;
}

.welcome-screen h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.welcome-screen p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #8e8ea0;
}

.example-prompts {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    max-width: 900px;
}

.example-section {
    flex: 1;
    min-width: 250px;
}

.example-section h3 {
    margin-bottom: 15px;
    font-size: 1rem;
    display: flex;
    align-items: center;
    color: #8e8ea0;
}

.example-section h3 i {
    margin-right: 8px;
}

.example-item {
    background-color: var(--button-bg-light);
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: background-color 0.2s;
}

body.dark-mode .example-item {
    background-color: var(--button-bg-dark);
}

.example-item:hover {
    background-color: var(--button-hover-light);
}

body.dark-mode .example-item:hover {
    background-color: var(--button-hover-dark);
}

.example-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-color-light);
}

body.dark-mode .example-item p {
    color: var(--text-color-dark);
}

.messages {
    display: none;
    padding: 20px 0;
}

.message {
    padding: 20px;
    display: flex;
    border-bottom: 1px solid var(--border-color-light);
}

body.dark-mode .message {
    border-bottom-color: var(--border-color-dark);
}

.message.user-message {
    background-color: var(--user-message-bg-light);
}

body.dark-mode .message.user-message {
    background-color: var(--user-message-bg-dark);
}

.message.ai-message {
    background-color: var(--ai-message-bg-light);
}

body.dark-mode .message.ai-message {
    background-color: var(--ai-message-bg-dark);
}

.message-avatar {
    width: 30px;
    height: 30px;
    border-radius: 2px;
    background-color: #10a37f;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.message-avatar.user-avatar {
    background-color: #7c3aed;
}

.message-avatar i {
    color: white;
    font-size: 16px;
}

.message-content {
    flex: 1;
    line-height: 1.6;
}

.message-content p {
    margin-bottom: 15px;
}

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

.message-content pre {
    background-color: var(--code-bg-light);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 15px 0;
}

body.dark-mode .message-content pre {
    background-color: var(--code-bg-dark);
}

.message-content code {
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

/* Input Container Styles */
.input-container {
    padding: 10px 20px 20px;
    border-top: 1px solid var(--border-color-light);
}

body.dark-mode .input-container {
    border-top-color: var(--border-color-dark);
}

.input-box {
    display: flex;
    align-items: center;
    background-color: var(--input-bg-light);
    border: 1px solid var(--border-color-light);
    border-radius: 8px;
    padding: 8px 15px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

body.dark-mode .input-box {
    background-color: var(--input-bg-dark);
    border-color: var(--border-color-dark);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

textarea {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    resize: none;
    font-size: 16px;
    line-height: 1.5;
    max-height: 200px;
    color: var(--text-color-light);
}

body.dark-mode textarea {
    color: var(--text-color-dark);
}

textarea::placeholder {
    color: #8e8ea0;
}

#send-btn {
    background: none;
    border: none;
    color: #8e8ea0;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    margin-left: 10px;
    transition: color 0.2s;
}

#send-btn:hover:not([disabled]) {
    color: #10a37f;
}

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

.disclaimer {
    text-align: center;
    margin-top: 10px;
    font-size: 12px;
    color: #8e8ea0;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color-light);
    }
    
    body.dark-mode .sidebar {
        border-bottom-color: var(--border-color-dark);
    }
    
    .main-content {
        height: 0;
        flex: 1;
    }
    
    .example-prompts {
        flex-direction: column;
    }
}

/* Animation for the typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
}

.typing-indicator span {
    height: 8px;
    width: 8px;
    background-color: #8e8ea0;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

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

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
    margin-right: 0;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-5px);
    }
}

/* Code block styling */
.message-content pre {
    position: relative;
}

.copy-code-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 4px;
    color: #8e8ea0;
    padding: 5px 8px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.copy-code-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Markdown styling */
.message-content h1, 
.message-content h2, 
.message-content h3, 
.message-content h4, 
.message-content h5, 
.message-content h6 {
    margin-top: 20px;
    margin-bottom: 10px;
}

.message-content ul, 
.message-content ol {
    margin-left: 20px;
    margin-bottom: 15px;
}

.message-content blockquote {
    border-left: 3px solid #8e8ea0;
    padding-left: 15px;
    margin: 15px 0;
    color: #8e8ea0;
}

.message-content a {
    color: #10a37f;
    text-decoration: none;
}

body.dark-mode .message-content a {
    color: #10a37f;
}

.message-content a:hover {
    text-decoration: underline;
}

.message-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
}

.message-content th, 
.message-content td {
    border: 1px solid var(--border-color-light);
    padding: 8px;
    text-align: left;
}

body.dark-mode .message-content th, 
body.dark-mode .message-content td {
    border-color: var(--border-color-dark);
}

.message-content th {
    background-color: var(--button-bg-light);
}

body.dark-mode .message-content th {
    background-color: var(--button-bg-dark);
}