body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  max-width: 480px;
  margin: 32px auto;
  padding: 0 16px;
  color: #1e293b;
}
h1 { font-size: 18px; color: #1a1a2e; }
label { display: block; margin-top: 16px; font-weight: 600; font-size: 13px; }
input {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  margin-top: 4px;
  border: 1px solid #e4e8ee;
  border-radius: 8px;
  font-size: 13px;
}
.hint { color: #64748b; font-size: 12px; margin: 4px 0 0; }
button {
  margin-top: 20px;
  margin-right: 8px;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  background: #c9a84c;
  color: #1a1a2e;
  font-weight: 600;
  cursor: pointer;
}
button#test { background: #f4f5f7; color: #1e293b; border: 1px solid #e4e8ee; }
#status { margin-top: 12px; font-size: 13px; }