body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 0;
}
.login-container,
.register-container {
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
}
.register-container {
  max-width: 600px;
}
.login-card,
.register-card {
  background: var(--white);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}
.login-header,
.register-header {
  background: linear-gradient(
    135deg,
    var(--primary-blue),
    var(--secondary-blue)
  );
  color: var(--white);
  padding: 3rem 2rem;
  text-align: center;
}
.register-header {
  padding: 2.5rem 2rem;
}
.login-header i,
.register-header i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}
.register-header i {
  font-size: 3.5rem;
}
.login-header h1,
.register-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.login-header p,
.register-header p {
  opacity: 0.9;
  margin: 0;
}
.login-body,
.register-body {
  padding: 2.5rem;
}
.form-label {
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}
.form-control {
  border: 2px solid var(--light-grey);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  transition: all 0.3s ease;
}
.form-control:focus {
  border-color: var(--secondary-blue);
  box-shadow: 0 0 0 0.2rem rgba(66, 153, 225, 0.25);
}
.form-select {
  border: 2px solid var(--light-grey);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  transition: all 0.3s ease;
}
.form-select:focus {
  border-color: var(--secondary-blue);
  box-shadow: 0 0 0 0.2rem rgba(66, 153, 225, 0.25);
}
.input-group-text {
  background: var(--light-grey);
  border: 2px solid var(--light-grey);
  border-right: none;
  color: var(--accent-grey);
}
.input-group .form-control {
  border-left: none;
}
.input-group:focus-within .input-group-text {
  border-color: var(--secondary-blue);
  background: rgba(66, 153, 225, 0.1);
}
.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.5rem 0;
  color: var(--accent-grey);
}
.divider::before,
.divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--light-grey);
}
.divider span {
  padding: 0 1rem;
  font-size: 0.9rem;
}
.social-login {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.btn-social {
  flex: 1;
  padding: 0.8rem;
  border: 2px solid var(--light-grey);
  border-radius: 10px;
  background: var(--white);
  color: var(--accent-grey);
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn-social:hover {
  border-color: var(--secondary-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.age-verification {
  background: linear-gradient(
    135deg,
    rgba(237, 137, 54, 0.1),
    rgba(237, 137, 54, 0.05)
  );
  border: 2px solid var(--warning);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.age-verification h3 {
  color: #c05621;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.age-verification p {
  color: var(--accent-grey);
  margin: 0;
  line-height: 1.6;
}
.terms-box {
  background: var(--light-grey);
  border-radius: 10px;
  padding: 1.2rem;
  margin-bottom: 1.5rem;
}
.form-check-label {
  color: var(--accent-grey);
  line-height: 1.6;
}
.form-check-label a {
  color: var(--secondary-blue);
  font-weight: 600;
  text-decoration: none;
}
.form-check-label a:hover {
  text-decoration: underline;
}
.password-strength {
  height: 4px;
  background: var(--light-grey);
  border-radius: 2px;
  margin-top: 0.5rem;
  overflow: hidden;
}
.password-strength-bar {
  height: 100%;
  width: 0%;
  transition: all 0.3s ease;
}
.register-link,
.login-link {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--light-grey);
  color: var(--accent-grey);
}
.register-link a,
.login-link a {
  color: var(--secondary-blue);
  font-weight: 600;
  text-decoration: none;
}
.register-link a:hover,
.login-link a:hover {
  text-decoration: underline;
}
.back-home {
  text-align: center;
  margin-top: 1.5rem;
}
.back-home a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}
.back-home a:hover {
  background: rgba(255, 255, 255, 0.1);
}
@media (max-width: 576px) {
  .login-header,
  .register-header {
    padding: 2rem 1.5rem;
  }
  .login-header h1,
  .register-header h1 {
    font-size: 1.5rem;
  }
  .login-body,
  .register-body {
    padding: 1.5rem;
  }
}