body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f6f6f6;
  margin: 0;
}

.wrap {
  max-width: 420px;
  margin: 60px auto;
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 14px;
  padding: 16px;
}

h1 {
  margin: 0 0 10px;
  font-size: 20px;
}

.muted {
  color: #666;
  font-size: 12px;
  margin: 0 0 14px;
}

.row {
  margin: 10px 0;
}

label {
  display: block;
  font-size: 12px;
  color: #444;
  margin-bottom: 6px;
}

input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
}

button {
  border: 1px solid #ddd;
  background: #fafafa;
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 800;
  cursor: pointer;
  width: 100%;
}

button:hover {
  background: #f3f3f3;
}

.err {
  color: #b00020;
  font-size: 13px;
  margin-top: 10px;
}