body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f5f5f5;
  margin: 0;
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}

.card {
  background: #fff;
  border: 1px solid #c0392b;
  border-radius: 4px;
  width: 100%;
  max-width: 480px;
  overflow: hidden;
}

.card-header {
  background: #c0392b;
  color: #fff;
  text-align: center;
  padding: 14px;
  font-weight: bold;
  letter-spacing: 0.5px;
}

.card-body {
  padding: 32px;
}

.logo-badge {
  display: block;
  margin: 0 auto 24px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px solid #111;
  color: #c0392b;
  font-weight: bold;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.logo-badge .brand {
  font-size: 22px;
  color: #111;
  margin: 2px 0;
}

.intro {
  text-align: center;
  color: #333;
  margin-bottom: 24px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-weight: bold;
  margin-bottom: 6px;
  color: #222;
}

.field input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
}

.btn {
  display: block;
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  color: #fff;
  cursor: pointer;
}

.btn-primary {
  background: #3f7fb3;
}

.btn-primary:hover {
  background: #356a97;
}

.error {
  background: #fdecea;
  border: 1px solid #c0392b;
  color: #c0392b;
  padding: 10px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
  font-size: 14px;
}

.center-text {
  text-align: center;
  color: #333;
}