/* ================================================
   Telegram风格聊天界面模板 - 现代简洁云端风格
   设计理念：蓝色渐变头部、淡绿用户气泡、纯白界面、云端同步感
   ================================================ */

:root {
    /* 主题变量 - Telegram配色 */
    --tpl-primary: var(--template-primaryColor, #0088CC);
    --tpl-header: var(--template-headerColor, #54A9EB);
    --tpl-bg: var(--template-bgColor, #FFFFFF);
    --tpl-user-bubble: var(--template-userBubbleColor, #EFFDDE);
    --tpl-admin-bubble: var(--template-adminBubbleColor, #FFFFFF);
    --tpl-text-primary: var(--template-textPrimary, #000000);
    --tpl-text-secondary: var(--template-textSecondary, #999999);
    --tpl-radius: var(--template-borderRadius, 18px);
    
    /* Telegram经典配色 */
    --tg-blue: #0088CC;
    --tg-blue-light: #54A9EB;
    --tg-blue-dark: #0077B5;
    --tg-green: #4FAE4E;
    --tg-user-bubble: #EFFDDE;
    --tg-admin-bubble: #FFFFFF;
    --tg-bg: #FFFFFF;
    --tg-chat-bg: #E6EBEE;
    --tg-text-primary: #000000;
    --tg-text-secondary: #999999;
    --tg-text-time: #A0ACB6;
    --tg-border: #E6E6E6;
    --tg-divider: #F0F0F0;
    
    /* 精致阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-bubble: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-blue: 0 4px 12px rgba(0, 136, 204, 0.3);
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ================================================
   全局字体设置
   ================================================ */
.chat-container-premium,
.chat-container-premium * {
    font-family: var(--font-family) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================================
   背景系统 - 淡灰蓝聊天背景
   ================================================ */
.modern-background {
    background: var(--tpl-bg) !important;
    position: relative;
}

/* 聊天背景纹理（可选的墙纸效果） */
.modern-background::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 136, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 136, 204, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.gradient-layer {
    display: none !important;
}

/* ================================================
   聊天容器 - 简洁卡片
   ================================================ */
.chat-container-premium {
    background: transparent !important;
    border: none !important;
    border-radius: 12px !important;
    box-shadow: var(--shadow-lg) !important;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.chat-container-premium::before {
    display: none !important;
}

/* ================================================
   头部设计 - Telegram蓝色渐变
   ================================================ */
.chat-header-simple {
    background: linear-gradient(135deg, var(--tpl-header) 0%, var(--tpl-primary) 100%) !important;
    border-bottom: none !important;
    padding: 12px 16px !important;
    position: relative;
    z-index: 10;
}

.chat-header-simple h1 {
    color: #FFFFFF !important;
    font-weight: 600 !important;
    font-size: 17px !important;
    letter-spacing: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 队列状态文字 */
#queue-status,
.chat-header-simple .text-gray-500,
.chat-header-simple .text-xs {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 400 !important;
    font-size: 13px !important;
}

/* ================================================
   头像设计 - 圆形带边框
   ================================================ */
.header-avatar {
    background: rgba(255, 255, 255, 0.2) !important;
    border: 2px solid rgba(255, 255, 255, 0.5) !important;
    border-radius: 50% !important;
    box-shadow: none !important;
    width: 40px !important;
    height: 40px !important;
    overflow: hidden;
}

.header-avatar img {
    border-radius: 50% !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}

/* ================================================
   头部图标按钮 - 白色风格
   ================================================ */
.header-icon-btn {
    color: rgba(255, 255, 255, 0.9) !important;
    background: transparent !important;
    border: none !important;
    border-radius: 50% !important;
    transition: all 0.2s ease !important;
    padding: 8px !important;
    width: 36px !important;
    height: 36px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.header-icon-btn:hover {
    background: rgba(255, 255, 255, 0.15) !important;
    color: #FFFFFF !important;
}

.header-icon-btn:active {
    background: rgba(255, 255, 255, 0.25) !important;
    transform: scale(0.95);
}

/* ================================================
   消息区域 - 白色背景
   ================================================ */
.messages-container {
    background: var(--tpl-bg) !important;
    padding: 12px 16px !important;
    position: relative;
}

/* ================================================
   时间戳分隔 - Telegram风格
   ================================================ */
.date-divider {
    text-align: center !important;
    margin: 16px 0 !important;
}

.date-divider span {
    background: rgba(0, 0, 0, 0.2) !important;
    color: #FFFFFF !important;
    padding: 4px 12px !important;
    border-radius: 12px !important;
    font-size: 13px !important;
    font-weight: 500 !important;
}

/* ================================================
   消息气泡 - Telegram经典样式
   ================================================ */
.message-bubble {
    max-width: 80% !important;
    padding: 8px 12px !important;
    border-radius: var(--tpl-radius) !important;
    position: relative;
    word-break: break-word;
    white-space: pre-wrap;
    box-shadow: var(--shadow-bubble) !important;
}

/* 用户消息 - 淡绿气泡 */
.user-message .message-bubble {
    background: var(--tpl-user-bubble) !important;
    color: var(--tpl-text-primary) !important;
    border: none !important;
    border-top-right-radius: 4px !important;
    margin-left: auto;
}

/* 用户消息尾巴 */
.user-message .message-bubble::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 0;
    border-width: 8px;
    border-style: solid;
    border-color: var(--tpl-user-bubble) transparent transparent transparent;
}

/* 客服消息 - 纯白气泡 */
.admin-message .message-bubble {
    background: var(--tpl-admin-bubble) !important;
    color: var(--tpl-text-primary) !important;
    border: none !important;
    border-top-left-radius: 4px !important;
}

/* 客服消息尾巴 */
.admin-message .message-bubble::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0;
    border-width: 8px;
    border-style: solid;
    border-color: var(--tpl-admin-bubble) transparent transparent transparent;
}

/* 消息文字 */
.message-bubble p,
.message-bubble span:not(.message-time) {
    color: inherit !important;
    font-size: 15px !important;
    line-height: 1.45 !important;
    margin: 0 !important;
}

/* 消息时间戳 */
.message-time {
    color: var(--tpl-text-secondary) !important;
    font-size: 11px !important;
    font-weight: 400 !important;
    margin-top: 4px !important;
    display: block;
    text-align: right;
}

.user-message .message-time {
    color: rgba(0, 100, 0, 0.5) !important;
}

/* ================================================
   消息头像 - 圆形设计
   ================================================ */
.message-avatar {
    width: 36px !important;
    height: 36px !important;
    border-radius: 50% !important;
    overflow: hidden !important;
    background: var(--tpl-header) !important;
    border: none !important;
    box-shadow: none !important;
    flex-shrink: 0 !important;
}

.message-avatar img {
    width: 100% !important;
    height: 100% !important;
    border-radius: 50% !important;
    object-fit: cover !important;
}

/* ================================================
   发送按钮 - Telegram蓝色圆形
   ================================================ */
.send-btn-simple,
.action-btn-primary {
    background: var(--tpl-primary) !important;
    border: none !important;
    border-radius: 50% !important;
    box-shadow: var(--shadow-blue) !important;
    transition: all 0.2s ease !important;
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative;
    overflow: hidden;
}

.send-btn-simple::before,
.action-btn-primary::before {
    display: none !important;
}

.send-btn-simple:hover:not(:disabled),
.action-btn-primary:hover:not(:disabled) {
    background: color-mix(in srgb, var(--tpl-primary) 85%, black) !important;
    box-shadow: 0 6px 16px rgba(0, 136, 204, 0.4) !important;
    transform: scale(1.05);
}

.send-btn-simple:active:not(:disabled),
.action-btn-primary:active:not(:disabled) {
    transform: scale(0.95);
    box-shadow: 0 2px 8px rgba(0, 136, 204, 0.3) !important;
}

.send-btn-simple:disabled,
.action-btn-primary:disabled {
    background: #C4C4C4 !important;
    box-shadow: none !important;
    opacity: 1;
}

.send-btn-simple svg,
.action-btn-primary svg {
    color: #FFFFFF !important;
    width: 20px !important;
    height: 20px !important;
}

/* ================================================
   功能按钮区域 - 简洁设计
   ================================================ */
.function-buttons-premium {
    background: #FFFFFF !important;
    border-top: 1px solid var(--tg-border) !important;
    border-bottom: none !important;
    padding: 8px 12px !important;
}

.function-chip {
    background: var(--tg-divider) !important;
    border: none !important;
    color: var(--tpl-text-primary) !important;
    border-radius: 16px !important;
    padding: 8px 14px !important;
    font-size: 14px !important;
    font-weight: 400 !important;
    transition: all 0.2s ease !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
}

.function-chip::before {
    display: none !important;
}

.function-chip:hover {
    background: #E0E0E0 !important;
    color: var(--tpl-text-primary) !important;
}

.function-chip:active {
    background: var(--tpl-primary) !important;
    color: #FFFFFF !important;
}

/* ================================================
   操作按钮 - 简洁次要样式
   ================================================ */
.action-btn-secondary {
    background: transparent !important;
    border: none !important;
    border-radius: 50% !important;
    color: var(--tpl-text-secondary) !important;
    transition: all 0.2s ease !important;
}

.action-btn-secondary:hover {
    background: rgba(0, 0, 0, 0.05) !important;
    color: var(--tpl-text-primary) !important;
    transform: none;
    box-shadow: none !important;
}

/* ================================================
   打字指示器 - 简洁动画
   ================================================ */
.typing-avatar {
    background: var(--tpl-header) !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 50% !important;
}

.typing-bubble {
    background: var(--tpl-admin-bubble) !important;
    border: none !important;
    box-shadow: var(--shadow-bubble) !important;
    border-radius: var(--tpl-radius) !important;
    border-top-left-radius: 4px !important;
    padding: 12px 16px !important;
}

.typing-dot {
    background: var(--tpl-primary) !important;
    width: 8px !important;
    height: 8px !important;
    border-radius: 50% !important;
    animation: typingBounce 1.4s ease-in-out infinite !important;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s !important; }
.typing-dot:nth-child(3) { animation-delay: 0.4s !important; }

@keyframes typingBounce {
    0%, 60%, 100% { 
        transform: translateY(0); 
        opacity: 0.5;
    }
    30% { 
        transform: translateY(-6px); 
        opacity: 1;
    }
}

/* ================================================
   消息入场动画 - 简洁滑入
   ================================================ */
.chat-message {
    animation: messageSlideIn 0.25s ease-out both !important;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================
   底部输入区域 - Telegram风格
   ================================================ */
.footer-premium {
    background: #FFFFFF !important;
    border-top: 1px solid var(--tg-border) !important;
    padding: 8px 12px !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* 输入框容器 */
.input-wrapper-premium {
    background: var(--tg-divider) !important;
    border: none !important;
    border-radius: 22px !important;
    padding: 0 !important;
    transition: all 0.2s ease !important;
}

.input-wrapper-premium:focus-within {
    background: #E8E8E8 !important;
    box-shadow: none !important;
}

/* 输入框 */
#message-input {
    background: transparent !important;
    border: none !important;
    color: var(--tpl-text-primary) !important;
    font-size: 15px !important;
    padding: 10px 16px !important;
    line-height: 1.4 !important;
}

#message-input::placeholder {
    color: var(--tpl-text-secondary) !important;
    opacity: 1 !important;
}

/* ================================================
   滚动条 - 简洁风格
   ================================================ */
.messages-container::-webkit-scrollbar {
    width: 6px !important;
}

.messages-container::-webkit-scrollbar-track {
    background: transparent !important;
}

.messages-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15) !important;
    border-radius: 3px !important;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25) !important;
}

/* ================================================
   链接样式
   ================================================ */
.message-bubble a {
    color: var(--tpl-primary) !important;
    text-decoration: none !important;
}

.message-bubble a:hover {
    text-decoration: underline !important;
}

/* ================================================
   图片和媒体消息
   ================================================ */
.message-bubble img:not(.emoji) {
    border-radius: 12px !important;
    max-width: 100% !important;
}

/* ================================================
   底部按钮对齐修复
   ================================================ */
#emoji-btn,
#function-panel-btn,
.toolbar-btn {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: var(--tpl-text-secondary) !important;
    background: transparent !important;
    border: none !important;
    border-radius: 50% !important;
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    min-height: 40px !important;
    padding: 0 !important;
    transition: all 0.2s ease !important;
}

#emoji-btn:hover,
#function-panel-btn:hover,
.toolbar-btn:hover {
    background: rgba(0, 0, 0, 0.05) !important;
    color: var(--tpl-text-primary) !important;
}

#send-btn {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* ================================================
   响应式适配 - 移动端主题保持
   ================================================ */
@media (max-width: 768px) {
    /* 移动端保持 Telegram 灰蓝背景 */
    #chat-widget-container {
        background: var(--tpl-bg) !important;
    }
    
    .chat-header-simple {
        padding: 10px 12px !important;
        background: linear-gradient(135deg, var(--tpl-header) 0%, var(--tpl-primary) 100%) !important;
    }
    
    .chat-header-simple h1 {
        font-size: 16px !important;
        color: #FFFFFF !important;
    }
    
    .messages-container {
        padding: 10px 12px !important;
        background: var(--tpl-bg) !important;
    }
    
    .message-bubble {
        max-width: 85% !important;
        padding: 8px 10px !important;
    }
    
    /* 移动端气泡选择器修复 */
    .message-bubble.user-message,
    .user-message .message-bubble {
        background: var(--tpl-user-bubble) !important;
    }
    
    .message-bubble.admin-message,
    .admin-message .message-bubble {
        background: var(--tpl-admin-bubble) !important;
    }
    
    .footer-premium {
        padding: 6px 10px !important;
        padding-bottom: calc(6px + env(safe-area-inset-bottom)) !important;
        background: #FFFFFF !important;
    }
    
    /* 移动端头部和底部样式 */
    header {
        background: linear-gradient(135deg, var(--tpl-header) 0%, var(--tpl-primary) 100%) !important;
        backdrop-filter: none !important;
        border-bottom: none !important;
    }
    
    footer {
        background: #FFFFFF !important;
        backdrop-filter: none !important;
        border-top: 1px solid var(--tg-border) !important;
    }
    
    .send-btn-simple,
    .action-btn-primary {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
    }
}

/* ================================================
   深色模式（可选）
   ================================================ */
@media (prefers-color-scheme: dark) {
    /* 暂不启用深色模式，保持Telegram经典浅色风格 */
}