.login-card,
.register-card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.form-control:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.password-strength .progress {
  height: 0.55rem;
  border-radius: 999px;
  background-color: #e9ecef;
}

.password-strength-text {
  display: inline-block;
  margin-top: 0.35rem;
}

.password-rules {
  padding-left: 1rem;
}

.password-rules li {
  margin-bottom: 0.2rem;
}

.password-rules li.rule-ok {
  color: #198754;
  font-weight: 600;
}

.progress-bar.strength-fragil {
  background: linear-gradient(90deg, #dc3545 0%, #ef5350 100%);
}

.progress-bar.strength-regular {
  background: linear-gradient(90deg, #f59e0b 0%, #facc15 100%);
}

.progress-bar.strength-fuerte {
  background: linear-gradient(90deg, #198754 0%, #20c997 100%);
}

.security-card {
  border: none;
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(13, 110, 253, 0.12);
}

.security-card .card-header {
  background: linear-gradient(90deg, #0d6efd 0%, #2563eb 100%);
  color: #fff;
  border-radius: 18px 18px 0 0;
}

.password-rules.compact {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.password-suggestions .btn-link {
  text-decoration: none;
}

.password-suggestions .form-range {
  margin-top: 0.45rem;
  margin-bottom: 0.2rem;
}