/* DeepSeek Chat - 现代化聊天界面样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-chat: #ffffff;
    
    /* 文字颜色 */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* 边框颜色 */
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    font-family: var(--font-family);
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

/* 应用容器 */
.app-container {
    display: flex;
    height: 100vh;
    background: var(--bg-primary);
}

/* 侧边栏 */
.sidebar {
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.new-chat-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.new-chat-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

/* 对话历史 */
.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.history-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.history-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

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

.history-item.active {
    background: var(--primary-color);
    color: white;
}

.history-title {
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.history-item.active .history-time {
    color: rgba(255, 255, 255, 0.8);
}

/* 侧边栏底部 */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.settings-btn {
    width: 100%;
    padding: 0.75rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.settings-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

/* 主聊天区域 */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-chat);
}

.chat-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
}

.chat-title h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.model-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.chat-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* 聊天容器 */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    scroll-behavior: smooth;
}

/* 欢迎消息 */
.welcome-message {
    text-align: center;
    padding: 3rem 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.welcome-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.welcome-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.welcome-message p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.quick-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.quick-btn {
    padding: 0.75rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

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

/* 消息样式 */
.message {
    display: flex;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.3s ease;
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 70%;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    position: relative;
    word-wrap: break-word;
}

.message.user .message-content {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message.assistant .message-content {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.message-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0.75rem;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--primary-color);
    color: white;
    order: 1;
}

.message.assistant .message-avatar {
    background: var(--accent-color);
    color: white;
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    text-align: right;
}

.message.assistant .message-time {
    text-align: left;
}

/* 输入容器 */
.input-container {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 0.25rem 1rem;
    transition: all 0.2s ease;
    min-height: 3.5rem;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#messageInput {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    max-height: 120px;
    min-height: 1.5rem;
    padding: 0.5rem 0;
    margin: 0;
    vertical-align: middle;
}

#messageInput::placeholder {
    color: var(--text-muted);
}

.input-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.attach-btn, .send-btn {
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.attach-btn {
    background: transparent;
    color: var(--text-muted);
}

.attach-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.send-btn {
    background: var(--primary-color);
    color: white;
}

.send-btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.send-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.model-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    color: #10b981;
    font-size: 0.5rem;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    width: 2rem;
    height: 2rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-body {
    padding: 1.5rem;
}

.setting-group {
    margin-bottom: 2rem;
}

.setting-group > label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.input-group input, .input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.input-group input:focus, .input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group input[type="range"] {
    padding: 0;
}

.range-value {
    font-weight: 500;
    color: var(--primary-color);
    margin-left: 0.5rem;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 0 !important;
}

.checkbox-label input[type="checkbox"] {
    width: auto !important;
    margin: 0;
}

.checkmark {
    font-size: 0.875rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}



/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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



/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        z-index: 100;
        height: 100vh;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .chat-main {
        width: 100%;
    }
    
    .quick-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .quick-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
}

/* 深色模式 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --bg-chat: #0f172a;
        
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --text-muted: #64748b;
        
        --border-color: #334155;
        --border-hover: #475569;
    }
}

body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-chat: #0f172a;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border-color: #334155;
    --border-hover: #475569;
}

/* 流式输出样式 */
.message.streaming .message-content {
    position: relative;
}

.typing-indicator {
    display: inline-block;
    color: var(--primary-color);
    font-size: 1.2rem;
    animation: typing 1.5s infinite;
}

.message.streaming .typing-indicator {
    margin-right: 0.5rem;
}

.message.error .message-content {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #dc2626;
}

/* 打字动画 */
@keyframes typing {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

/* 流式文本渐入效果 */
.message.streaming .message-content {
    animation: fadeIn 0.3s ease;
}

/* 配置管理界面样式 */
.config-section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.section-header h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.add-config-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-config-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.config-list {
    display: grid;
    gap: 0.75rem;
}

.config-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    transition: all 0.2s ease;
    position: relative;
}

.config-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.config-item.active {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.config-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
    border-radius: 0 3px 3px 0;
}

.config-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.config-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin: 0;
}

.config-actions {
    display: flex;
    gap: 0.5rem;
}

.config-btn {
    background: none;
    border: none;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.config-btn.default {
    background: var(--primary-color);
    color: white;
}

.config-btn.edit {
    color: var(--text-secondary);
}

.config-btn.edit:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.config-btn.delete {
    color: #ef4444;
}

.config-btn.delete:hover {
    background: rgba(239, 68, 68, 0.1);
}

.config-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.config-detail {
    display: flex;
    justify-content: space-between;
}

.config-detail-label {
    font-weight: 500;
}

/* 配置表单样式 */
.config-form-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1rem;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.toggle-password:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.input-group {
    position: relative;
    margin-bottom: 1rem;
}

.input-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
}

.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.save-btn,
.test-btn,
.cancel-btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.save-btn {
    background: var(--primary-color);
    color: white;
}

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

.test-btn {
    background: #10b981;
    color: white;
}

.test-btn:hover {
    background: #059669;
    transform: translateY(-1px);
}

.cancel-btn {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.cancel-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* 同步状态样式 */
.sync-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.sync-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.sync-indicator.synced {
    background: #10b981;
}

.sync-indicator.syncing {
    background: #f59e0b;
    animation: pulse 1.5s infinite;
}

.sync-indicator.error {
    background: #ef4444;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.sync-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.sync-btn,
.export-btn,
.import-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sync-btn {
    background: var(--primary-color);
    color: white;
}

.sync-btn:hover {
    background: var(--primary-hover);
}

.export-btn,
.import-btn {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.export-btn:hover,
.import-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}