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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #fff;
  color: #1a1a1a;
  font-size: 14px;
  line-height: 1.5;
}

#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

h1 {
  font-size: 20px;
  font-weight: 600;
}

button {
  background: #1a1a1a;
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

button:hover {
  background: #333;
}

#summary {
  font-size: 13px;
  color: #555;
  margin-bottom: 16px;
  min-height: 1.5em;
}

#error {
  background: #fff0f0;
  border: 1px solid #fca5a5;
  color: #b91c1c;
  padding: 10px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  background: #f5f5f5;
  border: 1px solid #ddd;
  padding: 8px 10px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

td {
  border: 1px solid #ddd;
  padding: 8px 10px;
  vertical-align: top;
}

tr.flag-80 td {
  background: #fffbeb;
}

#empty-msg {
  color: #777;
  font-style: italic;
  margin-top: 16px;
}