body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  margin: 20px;
  background: #fafafa;
  color: #333;
}

h1 { font-size: 22px; margin-bottom: 4px; }
h2 { font-size: 16px; margin: 12px 0 8px; }

.info { font-size: 12px; color: #888; margin-bottom: 16px; }

.section {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 14px;
  margin-bottom: 16px;
}

button {
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 8px 18px;
  cursor: pointer;
  font-size: 14px;
}
button:hover { background: #1557b0; }
button:disabled { background: #aaa; cursor: default; }

#summary {
  margin: 10px 0;
  font-size: 14px;
  font-weight: bold;
}

.pass { color: #0a7e07; }
.fail { color: #d93025; }

.test-item {
  padding: 6px 10px;
  margin: 4px 0;
  border-radius: 4px;
  font-size: 13px;
}
.test-pass { background: #e6f4ea; border-left: 3px solid #0a7e07; }
.test-fail { background: #fce8e6; border-left: 3px solid #d93025; }