/* 聊天界面样式
 * 作者：小白 🐶
 */

/* 基础样式重置 */
.chat-body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* 主容器 */
.chat-container {
    max-width: 900px;
    margin: 0 auto;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: #fff;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.1);
}

/* 顶部导航栏 */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    font-size: 20px;
    font-weight: 600;
}

.gateway-selector {
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 14px;
    cursor: pointer;
}

.gateway-selector option {
    background: #333;
    color: white;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.connecting {
    background: #ffc107;
    color: #333;
}

.status-badge.connected {
    background: #28a745;
    color: white;
}

.status-badge.disconnected {
    background: #dc3545;
    color: white;
}

.user-info {
    font-size: 14px;
    opacity: 0.9;
}

.logout-btn {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.logout-btn:hover {
    opacity: 1;
}

/* 消息列表区域 */
.message-list {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f5f7fb;
}

/* 欢迎消息 */
.welcome-message {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 30px;
    background: white;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.welcome-avatar {
    font-size: 48px;
}

.welcome-text h3 {
    margin: 0 0 8px 0;
    color: #333;
}

.welcome-text p {
    margin: 0;
    color: #666;
}

/* 消息气泡 */
.message {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    animation: fadeIn 0.3s ease;
}

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

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: #e9ecef;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: #667eea;
}

.message-content {
    max-width: 70%;
    min-width: 100px;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    gap: 10px;
}

.message-sender {
    font-size: 12px;
    color: #666;
    font-weight: 500;
}

.message-time {
    font-size: 11px;
    color: #999;
}

.message-text {
    padding: 12px 16px;
    border-radius: 16px;
    background: white;
    color: #333;
    line-height: 1.5;
    word-wrap: break-word;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message.user .message-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.agent .message-text {
    border-bottom-left-radius: 4px;
}

.message.system .message-text {
    background: #fff3cd;
    color: #856404;
    border-radius: 8px;
}

/* 代码块样式 */
.message-text pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 8px 0;
}

.message-text code {
    background: #f0f0f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
}

.message-text pre code {
    background: transparent;
    padding: 0;
}

/* 输入区域 */
.chat-input-area {
    padding: 15px 20px;
    background: white;
    border-top: 1px solid #e9ecef;
}

.input-wrapper {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

#message-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 15px;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
    max-height: 150px;
    line-height: 1.5;
}

#message-input:focus {
    border-color: #667eea;
}

#send-btn {
    padding: 12px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
}

#send-btn:hover:not(:disabled) {
    opacity: 0.9;
}

#send-btn:active:not(:disabled) {
    transform: scale(0.98);
}

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

.input-hint {
    margin-top: 8px;
    height: 20px;
}

/* 打字指示器 */
.typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #666;
    font-size: 13px;
}

.typing-indicator .dot {
    width: 6px;
    height: 6px;
    background: #667eea;
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out;
}

.typing-indicator .dot:nth-child(1) { animation-delay: 0s; }
.typing-indicator .dot:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator .dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

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

.message-list::-webkit-scrollbar-track {
    background: transparent;
}

.message-list::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.message-list::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .chat-container {
        height: 100vh;
    }
    
    .chat-header {
        padding: 10px 15px;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .chat-input-area {
        padding: 10px 15px;
    }
    
    #send-btn {
        padding: 12px 16px;
    }
}