html,
body {
  min-height: 100vh;
  background: linear-gradient(135deg, #4229df 0%, #3414d7 55%, #2b0fbe 100%);
  font-family: 'Lato', Arial, sans-serif;
  color: #34495e;
}

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 15px;
}

.card {
  width: 420px;
  background: #ffffff;
  border: 1px solid #e0e6ed;
  box-shadow: 0 12px 30px rgba(15, 76, 129, 0.15);
  border-radius: 12px;
  overflow: hidden;
}

.card-header {
  background: linear-gradient(90deg, #0f4c81, #bc9a00);
  color: #ffffff;
  padding: 18px 24px;
}

.card-header h3 {
  margin: 0;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
}

.card-header p {
  margin: 6px 0 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
}

.card-body {
  padding: 24px;
}

.card-body .form-group + .form-group {
  margin-top: 16px;
}

.card-body .form-control {
  height: auto;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid #cfd9e7;
  box-shadow: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-body .form-control:focus {
  border-color: #0f4c81;
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.15);
}

.btn.btn-primary {
  background: linear-gradient(90deg, #0f4c81, #0f87b6);
  border: none;
  color: #ffffff;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
}

.btn.btn-primary + .btn.btn-primary {
  margin-left: 10px;
}

.btn.btn-primary:hover {
  box-shadow: 0 10px 18px rgba(15, 76, 129, 0.25);
  transform: translateY(-1px);
}

.text-muted {
  color: #5f6f81;
}

.helper-text {
  margin-top: 14px;
  font-size: 13px;
}