/* ============ FORMULARIO - CSS OPTIMIZADO ============ */
/* Variables CSS para consistencia */
:root {
  --primary-blue: #102542;
  --secondary-blue: #4da8da;
  --light-blue: #b3d4fc;
  --dark-blue: #2a7bb6;
  --white: #ffffff;
  --gray-light: #f8f9fa;
  --gray-medium: #6c757d;
  --gray-dark: #495057;
  --success: #28a745;
  --error: #dc3545;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  --shadow-light: 0 10px 30px rgba(0, 0, 0, 0.1);
  --radius: 20px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  padding: 20px;
  line-height: 1.5;
}

/* 1. CONTENEDOR PRINCIPAL */
.formulario-container {
  display: flex;
  width: 100%;
  max-width: 1200px;
  min-height: 750px;
  margin: 40px auto;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 2. LADO IZQUIERDO - BLANCO */
.left-side {
  flex: 1;
  background: var(--white);
  padding: 50px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

/* Decoración sutil */
.left-side::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: linear-gradient(45deg, transparent 50%, var(--primary-blue) 50%);
  opacity: 0.05;
  border-radius: 0 0 0 100px;
}

/* Logo con efecto hover */
.left-side .logo {
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin-bottom: 30px;
  filter: drop-shadow(0 5px 15px rgba(16, 37, 66, 0.1));
  transition: var(--transition);
}

.left-side .logo:hover {
  transform: scale(1.05) rotate(5deg);
  filter: drop-shadow(0 8px 20px rgba(16, 37, 66, 0.15));
}

/* Título con gradiente */
.left-side h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* Texto */
.left-side p {
  font-size: 1.15rem;
  color: var(--gray-dark);
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: 40px;
  padding: 0 10px;
}

/* Partners */
.partners {
  margin-top: auto;
  width: 100%;
}

.partners h3 {
  font-size: 1rem;
  color: var(--gray-medium);
  margin-bottom: 25px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
}

.partners h3::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background: var(--secondary-blue);
}

.partner-logos {
  display: flex;
  gap: 25px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 15px 0;
}

.partner-logos img {
  height: 35px;
  width: auto;
  opacity: 0.6;
  transition: var(--transition);
  filter: grayscale(1);
}

.partner-logos img:hover {
  opacity: 1;
  filter: grayscale(0);
  transform: translateY(-3px);
}

/* 3. LADO DERECHO - AZUL */
.right-side {
  flex: 1.5;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #1a3a6c 100%);
  padding: 60px 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Patrón decorativo */
.right-side::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(77, 168, 218, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* 4. FORMULARIOS */
.form-slide {
  width: 100%;
  max-width: 520px;
  display: none;
  animation: slideIn 0.5s ease-out;
  position: relative;
  z-index: 1;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.form-slide.active {
  display: block;
}

/* Títulos del formulario */
.form-slide h2 {
  color: var(--white);
  font-size: 2.2rem;
  margin-bottom: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  position: relative;
  padding-bottom: 15px;
}

.form-slide h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--secondary-blue);
  border-radius: 2px;
}

.form-slide p {
  color: var(--light-blue);
  font-size: 1.05rem;
  margin-bottom: 35px;
  line-height: 1.6;
  opacity: 0.9;
}

.form-slide strong {
  color: var(--secondary-blue);
  font-weight: 600;
}

/* 5. CAMPOS DEL FORMULARIO */
.form-slide input,
.form-slide select {
  width: 100%;
  padding: 16px 18px;
  margin-bottom: 22px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  outline: none;
  transition: var(--transition);
}

.form-slide input:hover,
.form-slide select:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

.form-slide input:focus,
.form-slide select:focus {
  border-color: var(--secondary-blue);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 3px rgba(77, 168, 218, 0.2);
  transform: translateY(-2px);
}

/* Placeholder */
.form-slide input::placeholder {
  color: rgba(255, 255, 255, 0.5);
  transition: opacity 0.3s;
}

.form-slide input:focus::placeholder {
  opacity: 0.7;
}

/* Select personalizado */
.form-slide select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='%234da8da' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 18px center;
  background-size: 16px;
  padding-right: 45px;
  cursor: pointer;
}

/* 6. GRUPO DE TELÉFONO */
.phone-group {
  display: flex;
  gap: 15px;
  margin-bottom: 22px;
}

.phone-group select {
  width: 140px;
  flex-shrink: 0;
}

.phone-group input {
  flex: 1;
}

/* 7. GRUPO EN LÍNEA */
.inline-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-bottom: 28px;
}

.input-box {
  display: flex;
  flex-direction: column;
}

.input-box label {
  color: var(--white);
  font-size: 0.92rem;
  margin-bottom: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

.input-box label::after {
  content: '*';
  color: var(--error);
  font-size: 0.8rem;
  opacity: 0.8;
}

.input-box input,
.input-box select {
  margin-bottom: 0;
}

/* 8. OPCIONES DE GÉNERO */
.form-group {
  margin-bottom: 32px;
}

.form-group > label {
  display: block;
  color: var(--white);
  font-size: 0.92rem;
  margin-bottom: 14px;
  font-weight: 600;
}

.gender-options {
  display: flex;
  gap: 30px;
}

.gender-options label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  cursor: pointer;
  font-size: 1rem;
  padding: 8px 15px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.gender-options label:hover {
  background: rgba(255, 255, 255, 0.05);
}

.gender-options input[type="radio"] {
  width: 22px;
  height: 22px;
  accent-color: var(--secondary-blue);
  cursor: pointer;
  transition: var(--transition);
}

/* 9. BOTONES */
.buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 45px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.buttons button {
  padding: 16px 35px;
  border-radius: var(--radius-sm);
  font-family: 'Poppins', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 140px;
}

/* Botón "back" */
.buttons button.prev {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.buttons button.prev:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(-3px);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Botón "next" */
.buttons button.next {
  background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--dark-blue) 100%);
  color: var(--white);
  box-shadow: 0 5px 15px rgba(77, 168, 218, 0.3);
}

.buttons button.next:hover {
  background: linear-gradient(135deg, var(--dark-blue) 0%, #1a5a8c 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(77, 168, 218, 0.4);
}

.buttons button.next:active {
  transform: translateY(0);
}

/* Iconos en botones */
.buttons button::before {
  font-size: 1.2rem;
}

button.prev::before {
  content: '←';
}

button.next::before {
  content: '→';
}

/* 10. PAYPAL */
.paypal-box {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 15px;
  padding: 30px;
  margin-bottom: 35px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.paypal-box:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.paypal-box h3 {
  color: var(--white);
  text-align: center;
  margin-bottom: 25px;
  font-size: 1.4rem;
  font-weight: 600;
}

#paypal-container-X6KD2RMURS6Q4 {
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  transition: var(--transition);
}

#paypal-container-X6KD2RMURS6Q4:hover {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

/* 11. PROGRESS INDICATOR (nuevo) */
.progress-indicator {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 40px;
}

.progress-step {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transition: var(--transition);
}

.progress-step.active {
  background: var(--secondary-blue);
  transform: scale(1.3);
}

/* 12. VALIDACIÓN */
.form-slide input:invalid,
.form-slide select:invalid {
  border-color: var(--error);
  background: rgba(220, 53, 69, 0.05);
}

.form-slide input:valid,
.form-slide select:valid {
  border-color: var(--success);
}

/* Mensajes de error */
.error-message {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: -18px;
  margin-bottom: 20px;
  display: none;
}

.form-slide input:invalid + .error-message {
  display: block;
}

/* 13. RESPONSIVE */
@media (max-width: 1100px) {
  .formulario-container {
    max-width: 95%;
  }
}

@media (max-width: 1024px) {
  .formulario-container {
    flex-direction: column;
    max-width: 650px;
    min-height: auto;
    margin: 30px auto;
  }
  
  .left-side {
    padding: 40px 30px;
  }
  
  .right-side {
    padding: 45px 35px;
  }
  
  .left-side h1 {
    font-size: 2.2rem;
  }
}

@media (max-width: 768px) {
  .formulario-container {
    margin: 20px;
    border-radius: 15px;
  }
  
  .left-side,
  .right-side {
    padding: 35px 25px;
  }
  
  .inline-group {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  
  .phone-group {
    flex-direction: column;
    gap: 18px;
  }
  
  .phone-group select {
    width: 100%;
  }
  
  .gender-options {
    flex-direction: column;
    gap: 15px;
  }
  
  .buttons {
    flex-direction: column;
    gap: 15px;
  }
  
  .buttons button {
    width: 100%;
    justify-content: center;
  }
  
  .partner-logos {
    gap: 20px;
  }
  
  .partner-logos img {
    height: 28px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 10px;
  }
  
  .formulario-container {
    margin: 10px;
    border-radius: 12px;
  }
  
  .left-side,
  .right-side {
    padding: 30px 20px;
  }
  
  .left-side h1 {
    font-size: 1.9rem;
  }
  
  .form-slide h2 {
    font-size: 1.7rem;
  }
  
  .form-slide input,
  .form-slide select {
    padding: 14px 16px;
  }
  
  .buttons button {
    padding: 14px 25px;
  }
  
  .paypal-box {
    padding: 25px 20px;
  }
}

/* 14. DARK MODE SUPPORT (opcional) */
@media (prefers-color-scheme: dark) {
  body {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  }
  
  .left-side {
    background: #1a1a2e;
    color: #e6e6e6;
  }
  
  .left-side p {
    color: #b0b0b0;
  }
}

/* 15. ANIMACIONES DE CARGA */
.loading-spinner {
  display: none;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--secondary-blue);
  animation: spin 1s ease-in-out infinite;
  margin: 20px auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.buttons button.loading .loading-spinner {
  display: inline-block;
  margin-left: 10px;
}
/* Agregar al final del CSS existente */
@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-20px);
  }
}

/* Estilos adicionales para el JavaScript */
.general-error {
  color: var(--error);
  background: rgba(220, 53, 69, 0.1);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  margin: 15px 0;
  border-left: 4px solid var(--error);
  animation: fadeIn 0.3s ease-out;
}

.success-message {
  text-align: center;
  animation: fadeIn 0.8s ease-out;
}

/* Estilo para botón final */
button.next.final {
  background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%) !important;
}

button.next.final:hover {
  background: linear-gradient(135deg, #1e7e34 0%, #145523 100%) !important;
}
/* Agregar al final de tu archivo CSS */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOutRight {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.field-error {
  color: #dc3545;
  font-size: 0.85rem;
  margin-top: -15px;
  margin-bottom: 15px;
  display: none;
}

.error-field {
  border-color: #dc3545 !important;
  animation: shake 0.5s ease-in-out;
}

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #4da8da;
  animation: spin 1s linear infinite;
  display: inline-block;
  margin-left: 10px;
}