body {
  font-family: system-ui, Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f6f8fa;
  color: #24292e;
}

header, footer {
  padding: 16px;
  background: #ffffff;
  border-bottom: 1px solid #e1e4e8;
}

.controls {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  align-items: center;
  background: #fff;
  border-bottom: 1px solid #e1e4e8;
}

#searchInput {
  flex: 1;
  padding: 8px;
  border: 1px solid #d0d7de;
  border-radius: 6px;
}

#refreshBtn, #updateLink {
  padding: 8px 12px;
  background: #2da44e;
  color: #fff;
  border: none;
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
}

#refreshBtn {
  background: #0969da;
}

#summary {
  display: flex;
  gap: 12px;
  padding: 16px;
}

.card {
  background: #fff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  padding: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 16px;
  border: 1px solid #d0d7de;
}

th, td {
  border-bottom: 1px solid #e1e4e8;
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

tbody tr:hover {
  background: #f1f8ff;
}