/* High-end IDE Layout */
:root {
    --primary-color: #165DFF;
    --secondary-color: #36CFC9;
    --accent-color: #FF7D00;
    --text-color: #1D2129;
    --text-secondary: #4E5969;
    --background-color: #F2F3F5;
    --card-bg: #FFFFFF;
    --border-color: #E5E6EB;
    --hover-color: #F7F8FA;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.16);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
}

.container {
    width: 100%;
    margin: 0;
    padding: 20px;
}

/* IDE Layout */
.ide-layout {
    display: flex;
    gap: 20px;
    height: calc(100vh - 120px);
}

/* Left Sidebar */
.left-sidebar {
    width: 280px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-section {
    background-color: var(--hover-color);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.sidebar-section h3 {
    margin-bottom: 16px;
    color: var(--text-color);
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-section h3:before {
    content: '';
    display: block;
    width: 4px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* Middle Editor */
.middle-editor {
    width: calc(100% - 280px - 320px);
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.editor-header {
    background-color: var(--primary-color);
    color: white;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-title {
    font-size: 16px;
    font-weight: 600;
}

.editor-actions {
    display: flex;
    gap: 10px;
}

.editor-action-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.editor-action-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Right Chat Panel */
.right-chat {
    width: 320px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chat-section {
    background-color: var(--hover-color);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.chat-section h3 {
    margin-bottom: 16px;
    color: var(--text-color);
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-section h3:before {
    content: '';
    display: block;
    width: 4px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.chat-messages-container {
    flex: 1;
    overflow: hidden;
}

.chat-messages {
    height: 100%;
    overflow-y: auto;
    padding: 10px;
}

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

.chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.chat-input-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-input-container textarea {
    flex: 1;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    resize: none;
    min-height: 80px;
}

.chat-input-container button {
    padding: 15px 30px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s ease;
}

.chat-input-container button:hover {
    background-color: #0F4CD0;
    box-shadow: var(--shadow-light);
}

/* Model Dropdown */
.model-dropdown {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background-color: var(--card-bg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.model-dropdown:hover {
    border-color: var(--primary-color);
}

.model-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(22, 93, 255, 0.1);
}

/* Context Menu */
#contextMenu {
    position: absolute;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-heavy);
    z-index: 1000;
    min-width: 160px;
}

.context-menu-item {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.context-menu-item:hover {
    background-color: var(--hover-color);
}

.context-menu-item i {
    width: 16px;
    text-align: center;
}

/* Chat Messages */
.message {
    margin-bottom: 20px;
    max-width: 80%;
}

.message.user {
    margin-left: auto;
}

.message.assistant {
    margin-right: auto;
}

.message-content {
    padding: 15px;
    border-radius: 8px;
    background-color: #f0f8ff;
    color: #333;
    font-size: 16px;
    line-height: 1.6;
}

.message.user .message-content {
    background-color: #e3f2fd;
    color: #1a73e8;
}

.message.assistant .message-content {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.message.error .message-content {
    background-color: #ffebee;
    color: #c62828;
}

/* File Tree */
.file-tree {
    list-style: none;
    max-height: 240px;
    overflow-y: auto;
    padding: 16px;
    background-color: #F7F8FA;
    border-radius: 8px;
    border: 1px solid #E5E6EB;
}

.tree-item {
    padding: 10px 14px;
    border: 1px solid #E5E6EB;
    border-radius: 4px;
    margin-bottom: 8px;
    cursor: pointer;
    background-color: white;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
}

.tree-item:hover {
    background-color: #F7F8FA;
    border-color: #165DFF;
}

.tree-item.selected {
    background-color: rgba(22, 93, 255, 0.05);
    border-color: #165DFF;
    color: #165DFF;
}

.tree-item.file::before {
    content: '📄';
    font-size: 16px;
}

.tree-item.folder::before {
    content: '📁';
    font-size: 16px;
}

.tree-item.folder::after {
    content: '▶';
    font-size: 12px;
    margin-left: auto;
    transition: transform 0.3s ease;
}

.tree-item.folder.open::after {
    transform: rotate(90deg);
}

.tree-content {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tree-children {
    list-style: none;
    margin-left: 20px;
    display: block;
}

.tree-children.open {
    display: block;
}

/* File Upload */
.file-upload {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    background-color: white;
    transition: all 0.3s ease;
}

.file-upload:hover {
    border-color: #2c3e50;
    background-color: #e8f5e9;
}

/* Project List */
.project-list {
    list-style: none;
}

.project-item {
    padding: 16px;
    border: 1px solid #E5E6EB;
    border-radius: 8px;
    margin-bottom: 12px;
    cursor: pointer;
    background-color: white;
    font-size: 14px;
    transition: all 0.2s ease;
}

.project-item:hover {
    background-color: #F7F8FA;
    border-color: #165DFF;
}

.project-item.active {
    background-color: rgba(22, 93, 255, 0.05);
    color: #165DFF;
    border-color: #165DFF;
    font-weight: 500;
}

/* Header */
.header {
    background-color: #165DFF;
    color: white;
    padding: 24px;
    text-align: center;
    margin-bottom: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
}