/* ========== 全局 ========== */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  background: #f5f5f5;
  color: #333;
}

header {
  background: #1a1a2e;
  color: #fff;
  padding: 16px 24px;
}

header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

main {
  padding: 20px 24px;
}

/* ========== 错误占位 ========== */
.error-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.error-banner.error {
  background: #f8d7da;
  border-color: #f44336;
}

.error-banner.hidden {
  display: none;
}

/* ========== 重试按钮 ========== */
.retry-btn {
  padding: 6px 14px;
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

.retry-btn:hover {
  background: #1558b0;
}

.retry-btn.hidden {
  display: none;
}

/* ========== 加载 / 空占位 ========== */
.loading,
.empty-state {
  text-align: center;
  color: #888;
  padding: 40px 0;
}

/* ========== 表格 ========== */
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

thead tr {
  background: #f0f0f0;
}

th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}

th {
  font-weight: 600;
  font-size: 13px;
  color: #555;
}

/* ========== 聚合行（可点击） ========== */
.batch-row {
  cursor: pointer;
  user-select: none;
  background: #fafafa;
  font-weight: 500;
}

.batch-row:hover {
  background: #e8f0fe;
}

.batch-row.expanded {
  background: #e8f0fe;
}

.batch-row .expand-icon {
  display: inline-block;
  width: 16px;
  transition: transform 0.15s;
}

.batch-row.expanded .expand-icon {
  transform: rotate(90deg);
}

/* ========== 子行 ========== */
.child-row td {
  background: #fff;
  font-size: 13px;
  padding-left: 36px;
}

.child-row:last-child td {
  border-bottom: 2px solid #e0e0e0;
}

/* ========== verdict-hint 颜色编码 ==========
 * 枚举值来自 report-data-contract verdict 字段：
 *   ok / dns_blocked / ip_blocked / tls_blocked / partial / unknown
 * CSS class 名称直接对应枚举值（下划线保留）。
 */
.verdict {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

/* ok：可正常访问 */
.verdict-ok {
  background: #e6f4ea;
  color: #137333;
}

/* dns_blocked：DNS 被封锁 */
.verdict-dns_blocked {
  background: #fce8e6;
  color: #c5221f;
}

/* ip_blocked：IP 层封锁 */
.verdict-ip_blocked {
  background: #fce8e6;
  color: #b71c1c;
}

/* tls_blocked：TLS 握手被干扰 */
.verdict-tls_blocked {
  background: #fce8e6;
  color: #880e4f;
}

/* partial：部分资源可达 */
.verdict-partial {
  background: #fef7e0;
  color: #b45309;
}

/* unknown：无法判定 */
.verdict-unknown {
  background: #f1f3f4;
  color: #5f6368;
}

/* ========== 报告链接 ========== */
.report-link {
  color: #1a73e8;
  text-decoration: none;
}

.report-link:hover {
  text-decoration: underline;
}

/* ========== batch_id 截断保护 ========== */
.batch-id-cell {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: break-all;
}