/* PCAP Element Styles - Academic/Professional Theme */
/*
  该文件为PCAP元素及其子元素提供整体样式，
  采用简洁、专业的配色和布局，适合数据展示场景。
*/

:host {
  /* 组件根节点，采用等宽字体，设置边框、圆角和内边距，提升可读性 */
  display: block;
  font-family: 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 12px;
  margin: 12px 0;
  background: #fafafa;
  font-size: 12px;
  line-height: 1.4;
  position: relative;
}

.loading {
  /* 加载中提示，居中显示，字体颜色较浅 */
  text-align: center;
  padding: 16px;
  color: #666;
  font-size: 12px;
}

.error {
  /* 错误信息样式，红色背景和边框，突出警告 */
  color: #d32f2f;
  background: #ffebee;
  padding: 8px 10px;
  border-radius: 3px;
  margin: 6px 0;
  font-size: 11px;
  border-left: 3px solid #d32f2f;
}

/* 格式切换按钮样式 */
.format-toggle {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #3b82f6;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease;
  z-index: 10;
  font-family: inherit;
}

.format-toggle:hover {
  background: #2563eb;
}

.format-toggle:active {
  background: #1d4ed8;
}

.summary {
  /* 摘要信息区域，浅灰背景，圆角和边框 */
  background: #f3f4f6;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid #e5e7eb;
}

.summary h3 {
  /* 摘要标题，深色字体，大写字母，增强可读性 */
  margin: 0 0 6px 0;
  color: #374151;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-grid {
  /* 摘要统计信息采用flex布局，横向排列 */
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.summary-item {
  /* 单项统计卡片，白底、圆角、边框，居中显示 */
  background: white;
  padding: 6px 8px;
  border-radius: 3px;
  text-align: center;
  border: 1px solid #e5e7eb;
  flex: 1;
  min-width: 0;
}

.summary-item .label {
  /* 统计项标签，灰色小号字体，大写 */
  font-size: 10px;
  color: #6b7280;
  text-transform: uppercase;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.summary-item .value {
  /* 统计值，字号较大，深色加粗 */
  font-size: 15px;
  font-weight: 600;
  color: #1f2937;
  margin-top: 2px;
}

.summary-details {
  /* 协议分布、活跃地址等详细信息，横向wrap布局 */
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #e5e7eb;
  font-size: 11px;
  line-height: 1.4;
}

.detail-item {
  /* 详细项卡片，浅色背景，圆角，边框 */
  color: #374151;
  background: #f8f9fa;
  padding: 4px 8px;
  border-radius: 3px;
  border: 1px solid #e9ecef;
  white-space: nowrap;
}

.detail-item strong {
  /* 详细项标题加粗 */
  color: #1f2937;
  font-weight: 600;
}

.packets {
  /* 数据包列表区域，白底、圆角、边框 */
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  background: white;
}

.packet.even {
  /* 偶数行数据包，白色背景 */
  background: #fff;
}

.packet.odd {
  /* 奇数行数据包，浅灰背景，便于区分 */
  background: #f8fafc;
}

.packet {
  /* 单个数据包卡片，内边距，去除阴影和边框 */
  margin: 0;
  padding: 12px 16px;
  border: none;
  border-radius: 0;
  box-shadow: none;
  transition: background-color 0.2s ease;
  position: relative;
}

.packet:hover {
  /* 鼠标悬停高亮 - 区分奇偶行 */
  background-color: #e5e7eb !important;
}

.packet.odd:hover {
  /* 奇数行悬停时用更深的颜色 */
  background-color: #d1d5db !important;
}

.packet-divider {
  /* 数据包分隔线 */
  height: 1px;
  background: #e5e7eb;
  margin: 0;
  opacity: 0.6;
}

.packet-header {
  /* 数据包头部，flex布局，左右分布 */
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  padding-bottom: 6px;
  border-bottom: 1px solid #f3f4f6;
  font-size: 11px;
}

.packet-title {
  /* 包标题区域，协议徽章与编号并列 */
  display: flex;
  align-items: center;
  gap: 8px;
}

.packet-info {
  /* 包内详细信息，采用grid布局 */
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 6px;
  font-size: 10px;
}

.packet-info .info-item {
  /* 信息项，浅灰背景，圆角 */
  display: flex;
  justify-content: space-between;
  padding: 2px 4px;
  background: #f3f4f6;
  border-radius: 2px;
}

.packet-info .info-label {
  /* 信息项标签，灰色加粗 */
  color: #6b7280;
  font-weight: 600;
}

.packet-info .info-value {
  /* 信息项值，深色字体 */
  color: #1f2937;
  font-weight: 500;
}

.packet-data {
  /* 数据包原始数据区域，浅灰背景，等宽字体，可滚动 */
  background: #f8f9fa;
  padding: 8px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 10px;
  line-height: 1.3;
  max-height: 200px;
  overflow-y: auto;
  word-break: break-all;
  border: 1px solid #e9ecef;
  color: #374151;
}

/* 16进制数据样式 */
.hex-data {
  background: #1e1e1e;
  color: #d4d4d4;
  border: 1px solid #404040;
}

.hex-data pre {
  margin: 0;
  font-family: 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 10px;
  line-height: 1.4;
  white-space: pre;
  overflow-x: auto;
}

.protocol-badge {
  /* 协议徽章，小号字体，圆角，不同协议不同颜色 */
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: white;
}

.protocol-badge.smtp {
  background: #059669;
}

.protocol-badge.tcp {
  background: #3b82f6;
}

.protocol-badge.udp {
  background: #8b5cf6;
}

.protocol-badge.icmp {
  background: #f59e0b;
}

.protocol-badge.arp {
  background: #ef4444;
}

.protocol-badge.http {
  background: #10b981;
}

.protocol-badge.https {
  background: #059669;
}

/* 响应式设计 */
@media (max-width: 768px) {
  :host {
    /* 移动端适配，减小内边距和字体 */
    padding: 8px;
    font-size: 11px;
  }

  .summary-grid {
    /* 移动端统计信息改为垂直排列 */
    flex-direction: column;
    gap: 6px;
  }

  .packet-info {
    /* 移动端信息项改为单列 */
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .packet-header {
    /* 移动端头部改为垂直排列 */
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* 加载动画 */
.loading {
  animation: pulse 1.5s ease-in-out infinite alternate;
}

@keyframes pulse {
  from {
    opacity: 0.6;
  }
  to {
    opacity: 1;
  }
}

/* 交互效果 */
.summary-item:hover {
  /* 统计项悬停效果 */
  background: #f8fafc;
  border-color: #d1d5db;
  transition: all 0.2s ease;
}

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

.packets::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.packets::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}

.packets::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

.packet-data::-webkit-scrollbar {
  width: 6px;
}

.packet-data::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.packet-data::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}