.services-main {
  min-height: 100vh;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  box-sizing: border-box;
}

/* ===========================
   HERO SECTION
   =========================== */

.services-hero {
  background: linear-gradient(
    135deg,
    rgba(30, 58, 138, 0.9),
    rgba(15, 23, 42, 0.95)
  );
  text-align: center;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  padding: var(--spacing-xxl) 0;
}

.services-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.services-hero .container {
  position: relative;
}

.services-hero h1 {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.services-hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  margin: 0;
}

/* ===========================
   NAVEGACIÓN DE CATEGORÍAS
   =========================== */

.categories-nav {
  padding: var(--spacing-lg) 0;
  position: sticky;
  top: 0;
  /* SIN z-index - usar stacking context natural */
}

.categories-desktop {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.categories-mobile {
  display: none;
}

.category-btn {
  background: var(--color-white);
  border: 2px solid #e5e7eb;
  color: var(--color-gray-dark);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 200px;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  font-family: var(--font-family-primary);
}

.category-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.category-btn.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.category-btn i {
  font-size: 1.2rem;
}

.categories-select {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid #e5e7eb;
  border-radius: var(--border-radius);
  background: var(--color-white);
  color: var(--color-gray-dark);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  outline: none;
  text-align: center;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23374151' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--spacing-lg) center;
  background-size: 20px;
  padding-right: calc(var(--spacing-xl) + 30px);
  font-family: var(--font-family-primary);
}

.categories-select:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.categories-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(49, 129, 255, 0.1);
}

.categories-select option {
  background: var(--color-white);
  color: var(--color-gray-dark);
  padding: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

/* ===========================
   CONTENIDO DE SERVICIOS
   =========================== */

.services-content {
  padding: var(--spacing-xxl) 0;
  min-height: 60vh;
  position: relative;
  /* SIN z-index - usar stacking context natural */
}

/* Fondos con blur para cada categoría */
.services-content.bg-academica {
  background-image: url('/assets/images/ServicioAcademico.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.services-content.bg-academica::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1;
}

.services-content.bg-legales {
  background-image: url('/assets/images/ServicioLegal.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.services-content.bg-legales::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1;
}

.services-content.bg-ambiental {
  background-image: url('/assets/images/ServicioAmbiental.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.services-content.bg-ambiental::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1;
}

.services-content.bg-seguridad {
  background-image: url('/assets/images/ServicioSeguridad.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.services-content.bg-seguridad::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1;
}

.category-section {
  display: none;
  animation: fadeInUp 0.5s ease-out;
}

.category-section.active {
  display: block;
}

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

.service-selector {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.service-select {
  background: var(--color-white);
  border: 2px solid #e5e7eb;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-dark);
  min-width: 400px;
  max-width: 600px;
  width: 100%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  font-family: var(--font-family-primary);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23374151' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--spacing-lg) center;
  background-size: 20px;
  padding-right: calc(var(--spacing-xl) + 30px);
  position: relative;
  z-index: 10;
}

.service-select:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.service-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(49, 129, 255, 0.1);
}

.service-select option {
  background: var(--color-white);
  color: var(--color-gray-dark);
  padding: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

/* ===========================
   DETALLES DEL SERVICIO
   =========================== */

.service-details {
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-top: var(--spacing-lg);
}

.service-card {
  position: relative;
  z-index: 2;
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.service-info {
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.service-title {
  font-size: 1.8rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  margin-left: 1rem;
}

.service-category {
  background: var(--color-accent);
  color: var(--color-gray-dark);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: var(--font-weight-bold);
  display: inline-block;
  margin-bottom: var(--spacing-md);
  margin-left: 1rem;
}

.service-description {
  font-size: 1rem;
  color: var(--color-gray);
  line-height: 1.6;
  margin-left: 1rem;
}

.service-features,
.service-benefits {
  margin-bottom: var(--spacing-md);
  margin-left: 1rem;
}

.service-features h4,
.service-benefits h4 {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-xs);
}

.service-features ul,
.service-benefits ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-features li,
.service-benefits li {
  padding: var(--spacing-xs) 0;
  color: var(--color-gray);
  line-height: 1.4;
  font-size: 0.9rem;
  position: relative;
  padding-left: var(--spacing-md);
}

.service-features li::before,
.service-benefits li::before {
  content: "•";
  color: var(--color-gray-dark);
  font-weight: var(--font-weight-bold);
  position: absolute;
  left: 0;
}

/* Layout de dos columnas para todos los servicios */
.service-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 400px;
}

.service-content-left {
  flex-direction: column;
  padding: var(--spacing-lg);
}

.service-content-right {
  flex-direction: column;
  padding: var(--spacing-lg);
  background: var(--color-white);
  margin: 3rem 3rem;
}

/* Sección de revistas académicas */
.service-journals {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);

}

.service-journals h4 {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-sm);
}

.journals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.journal-card {
  display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      transition: all 0.3s ease;
      text-align: center;
      background: rgba(255, 255, 255, 0.95);
      border-radius: 12px;
      padding: var(--spacing-lg);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
      height: 120px;
      position: relative;
      overflow: hidden;
}

.journal-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.journal-logo {
  max-width: 100%;
  max-height: 50px;
  object-fit: contain;
}

/* ===========================
   CONTENEDOR DE FORMULARIO
   =========================== */

.service-form-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-form-container .form-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.025em;
}

.service-form-container .service-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

.service-form-container .form-group {
  margin-bottom: 0;
}

.service-form-container .form-group label {
  font-size: 0.875rem;
  display: block;
  margin-bottom: 0.5rem;
  color: #374151;
  font-weight: 500;
  letter-spacing: 0.025em;
}

.service-form-container .form-group input,
.service-form-container .form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: var(--font-family-primary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
  background: #ffffff;
  color: #1f2937;
}

.service-form-container .form-group input:focus,
.service-form-container .form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.service-form-container .form-group input:hover,
.service-form-container .form-group textarea:hover {
  border-color: #d1d5db;
}

.service-form-container .form-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.service-form-container .btn-submit {
  width: 100%;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-family-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
  letter-spacing: 0.025em;
  position: relative;
  overflow: hidden;
}

.service-form-container .btn-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.service-form-container .btn-submit:hover::before {
  left: 100%;
}

.service-form-container .btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.service-form-container .btn-submit:active {
  transform: translateY(0);
}

.service-form-container .btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ===========================
   MODAL DE FORMULARIO DE SERVICIO
   =========================== */

.service-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 10000;
  animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.service-modal-container {
  background: #ffffff;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 20px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-modal-header {
  padding: 2rem 2rem 0;
  border-bottom: 1px solid #f1f5f9;
  position: relative;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 20px 20px 0 0;
}

.service-modal-title {
  margin: 0 0 2rem 0;
  color: #1e293b;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-align: center;
}

.service-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.8);
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #64748b;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-modal-close:hover {
  background: #ffffff;
  color: #1e293b;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.service-modal-body {
  padding: 2rem;
  background: #ffffff;
}

.form-title {
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #374151;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: var(--font-family-primary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
  background: #ffffff;
  color: #1f2937;
  line-height: 1.5;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: #d1d5db;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-family-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  letter-spacing: 0.025em;
  position: relative;
  overflow: hidden;
}

.btn-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-submit:hover::before {
  left: 100%;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.btn-submit:active {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ===========================
   MODAL MÓVIL
   =========================== */

.mobile-form-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 10000;
  overflow-y: auto;
  animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-form-modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.mobile-form-content {
  background: #ffffff;
  border-radius: 20px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-form-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  margin: -2rem -2rem 2rem -2rem;
  padding: 2rem 2rem 1rem 2rem;
  border-radius: 20px 20px 0 0;
}

.mobile-form-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0;
  letter-spacing: -0.025em;
}

.mobile-close-btn {
  background: rgba(255, 255, 255, 0.8);
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #64748b;
  padding: 0.5rem;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-close-btn:hover {
  background: #ffffff;
  color: #1e293b;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-input-group {
  margin-bottom: 1.5rem;
}

.mobile-input-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #374151;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
}

.mobile-input-group input,
.mobile-input-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: var(--font-family-primary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
  background: #ffffff;
  color: #1f2937;
  line-height: 1.5;
}

.mobile-input-group input:focus,
.mobile-input-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.mobile-input-group input:hover,
.mobile-input-group textarea:hover {
  border-color: #d1d5db;
}

.mobile-input-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.mobile-submit-btn {
  width: 100%;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-family-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  letter-spacing: 0.025em;
  position: relative;
  overflow: hidden;
  margin-top: 1rem;
}

.mobile-submit-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.mobile-submit-btn:hover::before {
  left: 100%;
}

.mobile-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

  .mobile-submit-btn:active {
    transform: translateY(0);
  }

/* ===========================
   MICRO-INTERACCIONES Y ESTADOS
   =========================== */

/* Efecto de carga en botones */
.btn-submit.loading,
.mobile-submit-btn.loading {
  pointer-events: none;
  position: relative;
}

.btn-submit.loading::after,
.mobile-submit-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Efecto de éxito */
.btn-submit.success,
.mobile-submit-btn.success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  animation: bounce 0.6s ease;
}

/* Efecto de error */
.btn-submit.error,
.mobile-submit-btn.error {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  animation: pulse 0.3s ease;
}

/* Placeholder mejorado */
.form-group input::placeholder,
.form-group textarea::placeholder,
.mobile-input-group input::placeholder,
.mobile-input-group textarea::placeholder {
  color: #9ca3af;
  transition: all 0.2s ease;
}

.form-group input:focus::placeholder,
.form-group textarea:focus::placeholder,
.mobile-input-group input:focus::placeholder,
.mobile-input-group textarea:focus::placeholder {
  color: #6b7280;
  transform: translateY(-2px);
}

/* Efecto de validación */
.form-group input:valid,
.form-group textarea:valid,
.mobile-input-group input:valid,
.mobile-input-group textarea:valid {
  border-color: #10b981;
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown),
.mobile-input-group input:invalid:not(:placeholder-shown),
.mobile-input-group textarea:invalid:not(:placeholder-shown) {
  border-color: #ef4444;
}

/* Efecto de hover en labels */
.form-group label:hover,
.mobile-input-group label:hover {
  color: #3b82f6;
  transition: color 0.2s ease;
}

/* Efecto de focus en labels */
.form-group:focus-within label,
.mobile-input-group:focus-within label {
  color: #3b82f6;
  transform: translateY(-1px);
  transition: all 0.2s ease;
}

/* ===========================
   MODAL DE ASESORÍA
   =========================== */

.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  /* z-index alto solo para modal */
  z-index: 10000;
  animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-container {
  background: var(--color-white);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}

.modal-header {
  padding: var(--spacing-lg) var(--spacing-xl) 0;
  border-bottom: 1px solid #e5e7eb;
  position: relative;
}

.modal-title {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--color-gray-dark);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-lg);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-gray);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: #f3f4f6;
  color: var(--color-gray-dark);
}

.modal-body {
  padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray-dark);
  font-weight: var(--font-weight-medium);
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid #d1d5db;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-family: var(--font-family-primary);
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(49, 129, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-family-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.loading-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid var(--color-white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes fadeIn {
  from { 
    opacity: 0; 
    backdrop-filter: blur(0px);
  }
  to { 
    opacity: 1; 
    backdrop-filter: blur(8px);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -8px, 0);
  }
  70% {
    transform: translate3d(0, -4px, 0);
  }
  90% {
    transform: translate3d(0, -2px, 0);
  }
}

/* ===========================
   FOOTER
   =========================== */

.footer {
  background: var(--color-secondary-dark);
  color: var(--color-white);
  padding: 3rem 0 1rem;
  margin-top: 0;
}

.footer .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  opacity: 1;
  transform: none;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
  font-size: 1.5rem;
  color: var(--color-primary);
}

.footer-section h3 {
  font-size: 1.8rem;
  font-weight: var(--font-weight-bold);
}

.footer-section p {
  color: var(--color-white);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.footer-social a i {
  color: var(--color-gray-dark);
  font-size: 1.2rem;
}

.footer-social a:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: var(--color-white);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 1rem;
}

.footer-section ul li a:hover {
  color: var(--color-accent);
}

.footer-contact p {
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.footer-contact i {
  color: var(--color-accent);
  width: 20px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* ===========================
   SECCIONES COLAPSABLES MÓVIL
   =========================== */

.mobile-section-toggle {
  display: none;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin: 1rem 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.mobile-section-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.mobile-section-toggle i {
  transition: transform 0.2s ease;
}

.mobile-section-toggle.expanded i {
  transform: rotate(180deg);
}

.mobile-collapsible {
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-collapsible.collapsed {
  max-height: 0;
  opacity: 0;
  margin: 0;
  padding: 0;
}

.mobile-collapsible.expanded {
  max-height: 1000px;
  opacity: 1;
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .services-hero h1 {
    font-size: 2.5rem;
  }

  .services-hero p {
    font-size: 1rem;
  }

  .categories-desktop {
    display: none;
  }

  .categories-mobile {
    display: block;
  }

  .categories-nav {
    padding: var(--spacing-md) 0;
  }

  .service-select {
    min-width: 100%;
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  /* Layout responsive para todas las páginas */
  .service-content-grid {
    grid-template-columns: 1fr;
    gap: 0;
    min-height: auto;
  }

  .service-content-left {
    order: 1;
    padding: var(--spacing-md);
    border-right: none;
    border-bottom: 1px solid #e5e7eb;
  }

  .service-content-right {
    order: 2;
    padding: var(--spacing-md);
  }

  /* Mostrar botones de toggle en móvil */
  .mobile-section-toggle {
    display: flex !important;
  }

  /* Ocultar secciones de escritorio en móvil */
  .desktop-features-benefits {
    display: none;
  }

  /* Mostrar secciones colapsables en móvil */
  .service-features,
  .service-benefits {
    display: block; /* Asegurarse que se muestren dentro del colapsable */
  }

  /* Mostrar contenido de secciones cuando están expandidas */
  .mobile-collapsible.expanded .service-features,
  .mobile-collapsible.expanded .service-benefits {
    display: block;
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Ocultar formulario en móvil y mostrar botón */
  .service-form-container {
    display: none !important;
  }

  .mobile-form-trigger {
    display: flex !important;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 1rem 0;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  }

  .mobile-form-trigger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
  }

  .mobile-form-trigger i {
    font-size: 1.1rem;
  }

  .journals-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .journal-card {
    height: 50px;
    padding: var(--spacing-xs);
  }

  .journal-logo {
    max-height: 30px;
  }

  .service-title {
    font-size: 1.5rem;
  }

  .service-description {
    font-size: 0.95rem;
  }

  .journals-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .journal-card {
    height: 60px;
    padding: var(--spacing-sm);
  }

  .journal-logo {
    max-height: 40px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  /* Modal responsive */
  .service-modal-container {
    width: 95%;
    margin: var(--spacing-md);
    max-height: 95vh;
  }

  .service-modal-header,
  .service-modal-body {
    padding: var(--spacing-md);
  }

  .service-modal-title {
    font-size: 1.3rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .services-hero {
    padding: var(--spacing-xl) 0;
  }

  .services-hero h1 {
    font-size: 2rem;
  }

  .services-hero p {
    font-size: 0.9rem;
  }

  .categories-nav {
    padding: var(--spacing-sm) 0;
  }

  .service-select {
    font-size: 0.9rem;
    padding: var(--spacing-sm);
  }

  .service-info {
    padding: var(--spacing-md);
  }

  .service-form {
    padding: var(--spacing-md);
  }

  .service-title {
    font-size: 1.3rem;
  }

  .service-description {
    font-size: 0.9rem;
  }

  .service-features li,
  .service-benefits li {
    font-size: 0.9rem;
  }

  .modal-container {
    width: 100%;
    margin: var(--spacing-sm);
    max-height: 95vh;
  }

  .modal-header,
  .modal-body {
    padding: var(--spacing-sm);
  }

  .modal-title {
    font-size: 1.2rem;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 0.9rem;
    padding: var(--spacing-sm);
  }

  .btn-submit {
    font-size: 0.9rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* ===========================
   ESTILOS ESPECÍFICOS PARA DESKTOP
   =========================== */

@media (min-width: 769px) {
  .mobile-form-modal {
    display: none !important;
  }

  .service-form {
    display: block !important;
  }

  .form-title {
    display: block !important;
  }

  /* Ocultar elementos móviles en desktop */
  .mobile-section-toggle,
  .mobile-form-trigger {
    display: none !important;
  }

  /* Ocultar wrapper colapsable de móvil en desktop */
  .mobile-collapsible {
    display: none !important;
  }

  /* Mostrar secciones de escritorio */
  .service-features,
  .service-benefits {
    display: block;
  }

  .service-form-container {
    display: flex !important;
  }
}