/* 
 * 现代化聊天UI模板
 * 参考：Telegram、微信、Material Design
 * 特点：简洁、现代、流畅、美观
 */

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

:root {
    /* 统一字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    
    /* 字体大小规范 */
    --font-size-xs: 11px;      /* 徽章、标签 */
    --font-size-sm: 12px;     /* 辅助文字、时间 */
    --font-size-base: 14px;   /* 正文、按钮、输入框 */
    --font-size-md: 15px;     /* 次要标题 */
    --font-size-lg: 16px;     /* 主要文字、列表项 */
    --font-size-xl: 18px;     /* 页面标题、卡片标题 */
    --font-size-xxl: 20px;    /* 重要标题 */
    --font-size-title: 24px;  /* 页面主标题 */
    --font-size-display: 30px; /* 特殊显示（如余额） */
    
    /* 字体加粗规范 */
    --font-weight-normal: 400;    /* 正文 */
    --font-weight-medium: 500;    /* 按钮、次要标题 */
    --font-weight-semibold: 600;  /* 标题、重要文字 */
    --font-weight-bold: 700;      /* 特殊强调（少用） */
    
    /* 主题颜色 - 白黑灰为主 */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #eeeeee;
    --color-gray-300: #e0e0e0;
    --color-gray-400: #bdbdbd;
    --color-gray-500: #9e9e9e;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    
    /* 背景色 - 白灰系 */
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-gray-50);
    --bg-tertiary: var(--color-gray-100);
    --bg-hover: var(--color-gray-100);
    --bg-active: var(--color-gray-200);
    --bg-message-own: var(--color-gray-100);
    --bg-message-other: var(--color-white);
    
    /* 文字颜色 - 黑灰系 */
    --text-primary: var(--color-gray-900);
    --text-secondary: var(--color-gray-600);
    --text-muted: var(--color-gray-500);
    --text-disabled: var(--color-gray-400);
    
    /* 边框颜色 */
    --border-color: var(--color-gray-300);
    --border-color-light: var(--color-gray-200);
    --border-color-dark: var(--color-gray-400);
    
    /* 阴影 - 灰色系 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* 卡片样式 */
    --card-bg: var(--color-white);
    --card-border: var(--border-color);
    --card-shadow: var(--shadow-md);
    --card-radius: 12px;
    --card-padding: 16px;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    background: var(--bg-secondary);
    height: 100vh;
    overflow: hidden;
    touch-action: manipulation;
    -webkit-overflow-scrolling: touch;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.chat-container {
    display: flex;
    height: 100vh;
    position: relative;
    background: var(--bg-primary);
}

/* ========== 侧边栏 ========== */
.sidebar {
    width: 320px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.sidebar-header h2 {
    font-size: var(--font-size-title, 24px);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-header h2::before {
    content: '💬';
    font-size: var(--font-size-title, 24px);
}

.user-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.user-info > div {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.vip-badge {
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs, 11px);
    font-weight: var(--font-weight-semibold, 600);
    text-transform: uppercase;
}

.vip-badge.vip {
    background: var(--color-gray-800);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.vip-badge.admin {
    background: var(--color-gray-900);
    color: var(--color-white);
}

.admin-link, .logout-btn {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm, 12px);
    font-weight: var(--font-weight-medium, 500);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.admin-link:hover, .logout-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ========== 搜索框 ========== */
.search-box {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.search-box input {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    outline: none;
    font-size: var(--font-size-base, 14px);
    font-weight: var(--font-weight-normal, 400);
    background: var(--bg-secondary);
    transition: all 0.2s;
}

.search-box input:focus {
    background: var(--bg-primary);
    border-color: var(--color-gray-600);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

/* ========== 标签页 ========== */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: var(--font-size-md, 15px);
    font-weight: var(--font-weight-medium, 500);
    color: var(--text-secondary);
    transition: all 0.2s;
}

.tab-btn.active {
    border-bottom-color: var(--color-gray-800);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

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

/* ========== 联系人列表 ========== */
.contact-list {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* ========== 统一卡片组件 ========== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    box-shadow: var(--card-shadow);
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.card-header {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color-light);
}

.card-body {
    color: var(--text-secondary);
    line-height: 1.6;
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color-light);
}

.contact-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
    background: var(--bg-primary);
}

.contact-item:hover {
    background: var(--bg-hover);
}

.contact-item:active {
    background: var(--bg-active);
}

.contact-item.active {
    background: var(--bg-hover);
    border-left: 3px solid var(--color-gray-700);
}

.contact-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--color-gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: var(--font-weight-semibold, 600);
    font-size: var(--font-size-xxl, 20px);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.contact-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-avatar.admin-avatar {
    background: var(--color-gray-800);
}

.contact-info {
    flex: 1;
    min-width: 0;
}

.contact-name {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-status {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-status.online {
    color: #28a745;
    font-weight: 500;
}

.unread-badge {
    position: absolute;
    top: 12px;
    right: var(--spacing-md);
    background: #dc3545;
    color: white;
    border-radius: var(--radius-full);
    padding: 2px 8px;
    font-size: var(--font-size-xs, 11px);
    font-weight: var(--font-weight-semibold, 600);
    min-width: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

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

.chat-placeholder {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 16px;
}

.chat-window {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 10;
}

.chat-header h3 {
    flex: 1;
    margin: 0;
    font-size: var(--font-size-xl, 18px);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--text-primary);
}

.chat-actions button {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.2s;
    margin-left: var(--spacing-sm);
}

.chat-actions button:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    position: relative;
}

/* ========== 消息气泡 ========== */
.message {
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    position: relative;
    animation: messageSlideIn 0.3s ease;
}

/* ========== 聊天窗（覆盖层）消息布局修正：支持头像/左右布局 ========== */
/* 说明：index.php 只引入了 style-modern.css，但消息 DOM 结构包含 .message-avatar，
   所以必须在这里定义头像尺寸与横向布局，否则图片会按原始尺寸显示成“巨无霸”。 */
.chat-window-overlay #messages-container .message {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-start !important;
    gap: 10px !important;
    padding: 0 15px !important;
}

.chat-window-overlay #messages-container .message.own {
    flex-direction: row-reverse !important; /* 自己的消息头像在右侧 */
}

.chat-window-overlay #messages-container .message.other {
    flex-direction: row !important; /* 对方消息头像在左侧 */
}

.chat-window-overlay #messages-container .message.own,
.chat-window-overlay #messages-container .message.other {
    justify-content: flex-start !important;
}

.chat-window-overlay #messages-container .message-avatar {
    width: 25px !important;
    height: 25px !important;
    min-width: 25px !important;
    min-height: 25px !important;
    max-width: 25px !important;
    max-height: 25px !important;
    border-radius: 50% !important;
    flex-shrink: 0 !important;
    overflow: hidden !important;
    background: rgba(0, 0, 0, 0.05) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-sizing: border-box !important;
    margin: 0 !important;
    padding: 0 !important;
}

.chat-window-overlay #messages-container .message-avatar img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    border-radius: 50% !important;
    display: block !important;
}

.chat-window-overlay #messages-container .message-content-wrapper {
    flex: 1 !important;
    min-width: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
}

.chat-window-overlay #messages-container .message.own .message-content-wrapper {
    align-items: flex-end !important;
}

.chat-window-overlay #messages-container .message.other .message-content-wrapper {
    align-items: flex-start !important;
}

.chat-window-overlay #messages-container .message-time {
    font-size: 12px !important;
    color: var(--text-muted, #9e9e9e) !important;
    margin-top: 4px !important;
    margin-left: 8px !important;
    flex-shrink: 0 !important;
    align-self: flex-start !important;
}

.chat-window-overlay #messages-container .message.own .message-time {
    margin-left: 0 !important;
    margin-right: 8px !important;
}

@media (max-width: 768px) {
    .chat-window-overlay #messages-container .message {
        gap: 8px !important;
        padding: 0 12px !important;
    }
    
    .chat-window-overlay #messages-container .message-avatar {
        width: 25px !important;
        height: 25px !important;
        min-width: 25px !important;
        min-height: 25px !important;
        max-width: 25px !important;
        max-height: 25px !important;
    }
}

/* 兜底：防止其它页面或缓存未命中覆盖层选择器时，头像仍按原图尺寸显示 */
.message-avatar {
    width: 25px !important;
    height: 25px !important;
    min-width: 25px !important;
    min-height: 25px !important;
    max-width: 25px !important;
    max-height: 25px !important;
    border-radius: 50% !important;
    overflow: hidden !important;
    flex-shrink: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-sizing: border-box !important;
    margin: 0 !important;
    padding: 0 !important;
}

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

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

.message.own {
    align-items: flex-end;
}

.message.other {
    align-items: flex-start;
}

.message-content {
    max-width: 70%;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    word-wrap: break-word;
    word-break: break-word;
    position: relative;
    line-height: 1.5;
    font-size: 15px;
    box-shadow: var(--shadow-sm);
}

.message.own .message-content {
    background: var(--bg-message-own);
    color: var(--text-primary);
    border-bottom-right-radius: 4px;
}

.message.other .message-content {
    background: var(--bg-message-other);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.message-info {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.message-status {
    font-size: 12px;
    display: inline-block;
}

.message-status.sent {
    color: var(--text-muted);
}

.message-status.read {
    color: var(--primary-color);
}

.message-image {
    max-width: 100%;
    border-radius: var(--radius-md);
    display: block;
    cursor: pointer;
    transition: opacity 0.2s;
    box-shadow: var(--shadow-md);
}

.message-image:active {
    opacity: 0.8;
}

/* ========== 输入区域 ========== */
.input-area {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.input-toolbar {
    margin-bottom: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-sm);
}

.tool-btn {
    background: transparent;
    border: none;
    font-size: 22px;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}

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

.tool-btn:active {
    transform: scale(0.95);
}

.input-box {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.input-box textarea {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    resize: none;
    outline: none;
    font-family: inherit;
    font-size: 15px;
    line-height: 1.5;
    background: var(--bg-secondary);
    transition: all 0.2s;
    min-height: 40px;
    max-height: 40px;
    overflow-y: hidden;
}

.input-box textarea:focus {
    max-height: 120px;
    overflow-y: auto;
}

.input-box textarea:focus {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
}

#send-btn {
    padding: 10px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

#send-btn:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-md);
}

#send-btn:active {
    transform: scale(0.95);
}

/* ========== 移动端优化 ========== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 85%;
        max-width: 320px;
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
        z-index: 200;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 150;
        backdrop-filter: blur(2px);
    }
    
    .sidebar-overlay.show {
        display: block;
        animation: fadeIn 0.3s ease;
    }
    
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }
    
    .chat-area {
        width: 100%;
    }
    
    .chat-header {
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top));
    }
    
    .messages-container {
        padding: var(--spacing-md) var(--spacing-sm);
        padding-bottom: calc(100px + env(safe-area-inset-bottom));
    }
    
    .message-content {
        max-width: 80%;
        font-size: 16px;
    }
    
    .input-area {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
        z-index: 100;
    }
    
    .menu-toggle, .back-btn {
        display: inline-block !important;
        background: none;
        border: none;
        font-size: 24px;
        cursor: pointer;
        padding: var(--spacing-sm);
        color: var(--primary-color);
        margin-right: var(--spacing-sm);
        border-radius: var(--radius-full);
        transition: background 0.2s;
        -webkit-tap-highlight-color: transparent;
    }
    
    .menu-toggle:active, .back-btn:active {
        background: rgba(0, 136, 204, 0.1);
    }
}

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

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 400px;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.close {
    position: absolute;
    right: var(--spacing-md);
    top: var(--spacing-md);
    font-size: 28px;
    cursor: pointer;
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: all 0.2s;
}

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

.modal-content h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-size: 20px;
}

.modal-content input,
.modal-content textarea {
    width: 100%;
    padding: 12px 16px;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    outline: none;
    font-size: 14px;
    background: var(--bg-secondary);
    transition: all 0.2s;
}

.modal-content input:focus,
.modal-content textarea:focus {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
}

.modal-content button {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s;
}

.modal-content button:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-md);
}

.modal-content button:active {
    transform: scale(0.98);
}

/* 添加好友弹窗特定样式 */
#add-friend-modal .modal-content {
    font-family: var(--font-family);
}

#add-friend-modal .modal-content h3 {
    font-family: var(--font-family);
    font-size: var(--font-size-xl, 18px);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg, 24px);
}

#add-friend-modal .modal-content input {
    font-family: var(--font-family);
    font-size: var(--font-size-base, 14px);
    font-weight: var(--font-weight-normal, 400);
    color: var(--text-primary);
}

#add-friend-modal .modal-content button {
    font-family: var(--font-family);
    font-size: var(--font-size-base, 14px);
    font-weight: var(--font-weight-semibold, 600);
    margin-top: var(--spacing-sm, 8px);
}

#add-friend-modal #search-results {
    margin-top: var(--spacing-md, 16px);
    font-family: var(--font-family);
}

#add-friend-modal #search-results p {
    font-size: var(--font-size-base, 14px);
    font-weight: var(--font-weight-normal, 400);
    color: var(--text-secondary);
    text-align: center;
    padding: var(--spacing-md, 16px);
    margin: 0;
}

#add-friend-modal .search-result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md, 16px);
    margin-bottom: var(--spacing-sm, 8px);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm, 6px);
    font-family: var(--font-family);
    transition: all 0.2s;
}

#add-friend-modal .search-result-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-color-dark);
}

#add-friend-modal .search-result-item strong {
    font-size: var(--font-size-base, 14px);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--text-primary);
}

#add-friend-modal .search-result-item span {
    font-size: var(--font-size-sm, 12px);
    font-weight: var(--font-weight-normal, 400);
    color: var(--text-secondary);
    margin-left: var(--spacing-sm, 8px);
}

#add-friend-modal .search-result-item button {
    padding: 8px 16px;
    background: var(--color-gray-800, #424242);
    color: var(--color-white, #ffffff);
    border: none;
    border-radius: var(--radius-sm, 6px);
    font-size: var(--font-size-sm, 12px);
    font-weight: var(--font-weight-medium, 500);
    cursor: pointer;
    font-family: var(--font-family);
    transition: all 0.2s;
    margin: 0;
    width: auto;
}

#add-friend-modal .search-result-item button:hover {
    background: var(--color-gray-900, #212121);
}

#add-friend-modal .search-result-item button:active {
    transform: scale(0.95);
}