.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #ff7f00;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    display: inline-block;
    vertical-align: middle;
  }
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  nav a {
    text-decoration: none;
    font-size: 24px;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 5px;
}

/* Efecto de subrayado que aparece desde el centro */
nav a:hover {
    color: var(--primary-color);
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav a:hover::after {
    width: 100%;
}
    /* Estilos generales */
/* Estilos generales */
.event-details {
  max-width: 1000px;
  margin: 20px auto;
  margin-top: 420px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-family: 'Montserrat', sans-serif;
}

.event-title {
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 20px;
  text-align: center;
  justify-content: center;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  color: #2c3e50;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
  letter-spacing: 0.5px;
  font-family: 'Montserrat', 'Helvetica Neue', sans-serif;
  text-transform: uppercase;
  background: linear-gradient(45deg, #3498db, #2980b9);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  padding: 10px 0;
  border-bottom: 2px solid #3498db;
}

/* Diseño en cuadrícula para la información del evento */
.event-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
  margin-bottom: 30px;
}

.left-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.event-image-container {
  text-align: center;
}

.event-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.register-btn-container {
  text-align: center;
  margin-top: auto;
}

.right-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
}

.info-card {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.info-card-title {
  font-weight: 600;
  color: #3498db;
  margin-bottom: 8px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-card-content {
  font-size: 1rem;
}

.event-description {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 20px;
  margin-top: 15px;
}

.pdf-viewer {
  margin-top: 30px;
  width: 100%;
}

.register-btn {
  display: inline-block;
  width: fit-content;
  padding: 12px 30px;
  background: #4f46e5;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  transition: background 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.register-btn:hover {
  background: #4338ca;
  transform: translateY(-2px);
  box-shadow: 0 6px 10px rgba(79, 70, 229, 0.3);
}

.register-btn.disabled {
  background: #ccc;
  pointer-events: none;
  box-shadow: none;
}

/* Estilos responsivos */
@media (max-width: 768px) {
  .event-grid {
    grid-template-columns: 1fr;
  }
  
  .info-cards {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* Estilos generales previos (mantener estos estilos) */
.event-image {
  max-width: 250px;
  height: auto;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
}

.event-info {
  margin-top: 20px;
  line-height: 1.6;
  text-align: left !important;
}

.event-info h1 {
  font-size: 24px;
}

.event-info p {
  margin: 10px 0;
  text-align: left !important;
}

.event-info p strong {
  margin-right: 8px;
  text-align: left !important;
}

/* Formulario de inscripción (para usuarios logueados) */
.payment-form {
  display: none;
  margin-top: 20px;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #f9f9f9;
}

.payment-form h2 {
  margin-bottom: 15px;
}

.payment-option {
  margin-bottom: 15px;
}

.payment-option p {
  margin-bottom: 5px;
  font-weight: bold;
}

.payment-option label {
  display: inline-block;
  padding: 5px 10px;
  background: #e0e0e0;
  border-radius: 4px;
  margin-right: 10px;
  cursor: pointer;
  transition: background 0.3s;
}

.payment-option label:hover {
  background: #d0d0d0;
}

.payment-option input[type="radio"] {
  margin-right: 5px;
}

.payment-option small {
  display: block;
  color: #555;
  margin-top: 2px;
}

.payment-submit {
  display: block;
  width: 100%;
  padding: 10px 20px;
  background: #10b981;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  margin-top: 20px;
}

/* Formulario de registro de invitado */
.guest-registration {
  max-width: 400px;
  margin: 180px auto 180px;
  margin-top: 280px;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #f9f9f9;
  font-family: 'Montserrat', sans-serif;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: relative;
}

.guest-registration h2 {
  margin-bottom: 15px;
  text-align: center;
  font-size: 18px;
}

.guest-registration label {
  display: block;
  margin: 10px 0 5px;
}

.guest-registration input {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.guest-registration button {
  margin-top: 15px;
  width: 100%;
  padding: 10px;
  background: #4f46e5;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

/* Sección "¿Ya tienes una cuenta?" */
.guest-registration p {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #eee;
  color: #666;
}

.guest-registration a {
  color: #4A90E2;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.guest-registration a:hover {
  color: #357ABD;
  text-decoration: underline;
}

/* Estilos para campos de donación y selección de fundación */
.donation-input {
  border: 2px solid #10b981;
  padding: 8px;
  border-radius: 4px;
  transition: border-color 0.3s;
}

.donation-input:focus {
  border-color: #0f9d58;
  outline: none;
}

.charity-select {
  border: 2px solid #10b981;
  padding: 8px;
  border-radius: 4px;
  transition: border-color 0.3s;
}

.charity-select:focus {
  border-color: #0f9d58;
  outline: none;
}

.form-input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  margin-top: 5px;
  margin-bottom: 15px;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
  border-color: #4f46e5;
  outline: none;
  box-shadow: 0 0 5px rgba(79,70,229,0.5);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
}    

/* Oculta el botón de radio original */
input[type="radio"] {
  display: none;
}

/* Estilo base para las etiquetas de radio */
input[type="radio"] + label {
  padding: 8px 16px;
  border: 1px solid #ccc;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  display: inline-block;
  margin-right: 10px;
}

/* Estilo para la etiqueta cuando el radio está seleccionado */
input[type="radio"]:checked + label {
  background-color: #4f46e5;
  color: #fff;
  border-color: #4f46e5;
}

.pdf-viewer {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.pdf-container {
  position: relative;
  width: 100%;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

.pdf-object {
  display: block;
  border: none;
}

.pdf-fallback {
  padding: 20px;
  text-align: center;
}

.no-pdf-message {
  padding: 20px;
  text-align: center;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .pdf-container {
    padding: 10px;
  }
  
  .pdf-object {
    height: 400px;
  }
}

@media (max-width: 480px) {
  .pdf-viewer {
    padding: 10px;
  }
  
  .pdf-object {
    height: 300px;
  }
}

.slider-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.main-slider {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.slider-wrapper {
  display: flex;
  transition: transform 0.5s ease-in-out;
  height: 100%;
}

.slide {
  min-width: 100%;
  height: 100%;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.7);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s;
}

.slider-nav:hover {
  background: rgba(255,255,255,0.9);
}

.prev {
  left: 10px;
}

.next {
  right: 10px;
}

.thumbnails {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 10px 0;
}

.thumbnail {
  flex: 0 0 100px;
  height: 70px;
  cursor: pointer;
  border-radius: 4px;
  overflow: hidden;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.thumbnail:hover {
  opacity: 1;
}

.thumbnail.active {
  opacity: 1;
  border: 2px solid #007bff;
}

.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.logo-img {
  height: 160px; /* Usa height en lugar de max-height */
  width: auto;
  transition: height 0.3s ease-in-out, margin 0.3s ease-in-out; /* Suaviza la animación */
  margin-top: 80px;
  margin-bottom: 80px;
  margin-right: 50px;
}

/* Cuando se hace scroll */
.logo-img.shrink {
  height: 80px !important; /* Ajusta el tamaño */
  margin-top: 20px !important;
  margin-bottom: 20px !important;
  margin-right: 20px !important;
}

/* Estilos para el contenedor principal */
.event-page-container {
  position: relative;
  margin-top: 260px; /* Mantiene el margen original */
  padding-bottom: 30px;
}

/* Imagen promocional como fondo */
.promotional-background {
  position: absolute;
  top: -200px; /* Se extiende 60px hacia arriba */
  left: 0;
  width: 100%;
  height: calc(100% - 300px); /* Altura adicional para que se extienda hacia abajo */
  background-size: cover;
  background-position: center;
  filter: brightness(0.85);
  z-index: 0;
}

/* Agrega una capa de degradado sobre la imagen */
.promotional-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, 
                rgba(0,0,0,0.4) 0%, 
                rgba(255,255,255,0.8) 40%, 
                rgba(255,255,255,1) 60%);
  pointer-events: none;
}

/* Estilos para la sección de detalles */
.event-details {
  position: relative;
  z-index: 1;
}

.event-details-inner {
  /* Cambia el fondo semitransparente a uno con menor opacidad o transparente */
  background-color: rgba(255, 255, 255, 0.6); /* Ajusta la opacidad según necesites, o usa 'transparent' */
  /* Quita o reduce la sombra para que no se vea tan marcado */
  box-shadow: none;
  /* Ajusta el padding y el margin para integrarlo mejor con el fondo */
  padding: 20px;
  margin-top: 50px; /* Puedes modificar este valor para que se integre con el fondo promocional */
}


/* Título del evento destacado */
.event-title {
  font-size: 2.2rem;
  font-weight: bold;
  color: #333;
  text-shadow: 0 1px 2px rgba(255,255,255,0.6);
  margin-bottom: 20px;
}

/* Tarjetas de información con efecto de cristal */
.info-card {
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

/* Adaptaciones para el formulario de pago */
.payment-form {
  position: relative;
  z-index: 1;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  padding: 30px;
  margin-top: 200px !important; /* Sobrescribe el margen en línea */
}

/* Efecto para los botones de acción */
.register-btn, .confirm-coupon-btn, #finish-registration-btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.register-btn:after, .confirm-coupon-btn:after, #finish-registration-btn:after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: all 0.6s ease;
}

.register-btn:hover:after, .confirm-coupon-btn:hover:after, #finish-registration-btn:hover:after {
  left: 100%;
}

/* Adaptación para móviles */
@media (max-width: 768px) {
  .promotional-background {
    height: calc(100% + 50px);
  }
  
  .event-details-inner, .payment-form {
    margin-top: 150px;
    padding: 20px;
  }
  
  .event-title {
    font-size: 1.8rem;
  }
}