/* ===== SELL ITEM - DISEÑO MODERNO Y PROFESIONAL ===== */
/* Importar fuente moderna */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");

/* Variables CSS para consistencia con el index */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary: #64748b;
  --success: #10b981;
  --success-hover: #059669;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --warning: #f59e0b;
  --warning-hover: #d97706;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.35s ease;
}

/* Reseteo básico y configuración de fuente mejorada */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--gray-50) 0%, #ffffff 100%);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ===== LAYOUT PRINCIPAL MODERNO ===== */
.sell-container {
  display: grid;
  grid-template-columns: 480px 1fr;
  min-height: calc(100vh - 80px);
  gap: 0;
  flex: 1;
  background: var(--bg-secondary);
}

@media (max-width: 1200px) {
  .sell-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    gap: 1rem;
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  .sell-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: 1rem;
    padding: 0.5rem;
  }
}

/* ===== SECCIÓN FORMULARIO MODERNA ===== */
.form-section {
  background: var(--bg-primary);
  border-right: 1px solid var(--gray-200);
  overflow-y: auto;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.form-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
}

.card-form {
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  max-width: 100%;
}

.card-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.02em;
  position: relative;
}

.card-title::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
  border-radius: 2px;
}

/* ===== ZONA DE SUBIDA DE FOTOS MODERNA ===== */
.photo-upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 250px; /* Antes: 200px */
  margin-bottom: 0.25rem; /* Antes: 0.5rem */
  padding: 2rem;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--bg-primary) 100%);
  border: 2px dashed var(--gray-300);
  border-radius: var(--border-radius-xl);
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.photo-upload::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
  transition: left 0.5s;
}

.photo-upload:hover::before {
  left: 100%;
}

.photo-upload:hover {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-primary) 100%);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.photo-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary);
  transition: all var(--transition-normal);
}

.photo-upload:hover .photo-icon {
  transform: scale(1.1);
  color: var(--primary-hover);
}

.photo-text {
  font-size: 1rem;
  color: var(--gray-600);
  font-weight: 500;
  position: relative;
  z-index: 2;
  text-align: center;
}

.photo-text #photoTextLine3 {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 0.5rem;
  font-weight: 400;
  opacity: 0.8;
}



/* ✅ CORRECCIÓN: Contador "0/6" más visible y hacia la derecha */
.photo-text .photo-count {
  position: absolute;
  top: -120px; /* Mantener la altura */
  left: -120px; /* Mover más a la derecha (era -180px) */
  background: var(--primary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-xl);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  z-index: 3;
}

/* ===== THUMBNAILS MODERNOS ===== */
.thumbnail-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--border-radius-lg);
  min-height: 80px;
  align-items: center;
  justify-content: flex-start;
}

.thumbnail {
  position: relative;
  width: 100px; /* Antes: 80px */
  height: 100px; /* Antes: 80px */
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  cursor: grab;
  transition: all var(--transition-normal);
  background: var(--bg-primary);
  box-shadow: var(--shadow-sm);
}

.thumbnail:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.thumbnail.dragging {
  opacity: 0.6;
  cursor: grabbing;
  transform: rotate(5deg) scale(1.1);
}

.thumbnail.removing {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s ease;
}

.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-normal);
}

.thumbnail:hover img {
  transform: scale(1.1);
}

.remove-btn {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 24px;
  height: 24px;
  background: var(--danger);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.75rem; /* Antes: 0.875rem - más pequeño para mejor centrado */
  font-weight: bold;
  z-index: 10;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
  line-height: 1; /* Agregar line-height para mejor centrado */
}

.remove-btn:hover {
  background: var(--danger-hover);
  transform: scale(1.2);
  box-shadow: var(--shadow-lg);
}

/* Botón pequeño de agregar foto */
.thumbnail.add-photo-thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--bg-primary) 100%);
  color: var(--primary);
  font-size: 1rem;
  cursor: pointer;
  border: 2px dashed var(--gray-300);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.thumbnail.add-photo-thumb::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
  transition: left 0.5s;
}

.thumbnail.add-photo-thumb:hover::before {
  left: 100%;
}

.thumbnail.add-photo-thumb:hover {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-primary) 100%);
  border-color: var(--primary);
  color: var(--primary-hover);
  transform: translateY(-2px);
}

.add-photo-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  transition: all var(--transition-fast);
}

.thumbnail.add-photo-thumb:hover .add-photo-icon {
  transform: scale(1.2);
}

.add-photo-text {
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
}

/* ===== BARRA DE PROGRESO MODERNA ===== */
.progress-bar {
  width: 100%;
  height: 8px;
  margin-bottom: 1.5rem;
  background: var(--gray-200);
  border-radius: 4px;
  overflow: hidden;
  display: none;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
  transition: width 0.3s ease;
  border-radius: 4px;
  position: relative;
}

.progress-fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progressShimmer 2s infinite;
}

@keyframes progressShimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ===== GRUPOS DE FORMULARIO MODERNOS ===== */
.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-700);
  letter-spacing: -0.01em;
}

.required {
  color: var(--danger);
  font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-normal);
  color: var(--gray-800);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px var(--primary-light);
  transform: translateY(-1px);
}

.form-group input.input-error,
.form-group select.input-error,
.form-group textarea.input-error {
  border-color: var(--danger);
  background: #fef2f2;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

/* ===== CUSTOM SELECTS MODERNOS ===== */
.custom-select-wrapper {
  position: relative;
  width: 100%;
}

.custom-select-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  color: var(--gray-800);
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.custom-select-trigger::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.05), transparent);
  transition: left 0.5s;
}

.custom-select-trigger:hover::before {
  left: 100%;
}

.custom-select-trigger:hover {
  border-color: var(--primary);
  background: var(--bg-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.custom-select-trigger.active {
  border-color: var(--primary);
  background: var(--bg-primary);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  box-shadow: 0 0 0 4px var(--primary-light);
}

.custom-select-trigger.input-error {
  border-color: var(--danger);
  background: #fef2f2;
}

.custom-select-trigger i {
  margin-left: 0.75rem;
  transition: transform var(--transition-normal);
  color: var(--gray-500);
  font-size: 0.875rem;
}

.custom-select-trigger.active i {
  transform: rotate(180deg);
  color: var(--primary);
}

.custom-select-trigger.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--gray-100);
}

.custom-select-options {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--bg-primary);
  border: 2px solid var(--primary);
  border-top: none;
  border-bottom-left-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  display: none;
  max-height: 300px;
  overflow-y: auto;
  backdrop-filter: blur(20px);
}

.custom-select-options.active {
  display: block;
  animation: dropdownSlideIn 0.3s ease-out;
}

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

.custom-select-options .search-input-dropdown {
  width: calc(100% - 1rem);
  padding: 0.75rem 1rem;
  margin: 0.5rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  background: var(--gray-50);
  font-family: inherit;
  transition: all var(--transition-fast);
}

.custom-select-options .search-input-dropdown:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.custom-select-options .options-list {
  max-height: 200px;
  overflow-y: auto;
  padding-bottom: 0.5rem;
}

.custom-option {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--gray-700);
  transition: all var(--transition-fast);
  border-radius: var(--border-radius-sm);
  margin: 0 0.5rem;
  position: relative;
}

.custom-option::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.custom-option:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateX(4px);
}

.custom-option:hover::before {
  transform: scaleY(1);
}

/* ===== CONTADOR DE CARACTERES ===== */
.char-counter {
  position: absolute;
  left: 0;
  bottom: -16px;
  font-size: 0.875rem;
  color: var(--gray-500);
  font-weight: 500;
}

/* ===== MENSAJES DE ERROR MODERNOS ===== */
.error-message {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--danger);
  font-weight: 500;
  min-height: 20px;
  padding-left: 0.25rem;
  position: relative;
}

.error-message::before {
  display: none;
}

/* ===== BOTÓN SUBMIT MODERNO ===== */
.btn-submit {
  display: block;
  width: 100%;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  border: none;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  letter-spacing: -0.01em;
  margin-top: 1rem;
}

.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(-3px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.btn-submit:disabled {
  background: var(--gray-400);
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.btn-submit:disabled::before {
  display: none;
}

/* ===== SECCIÓN VISTA PREVIA MODERNA ===== */
.preview-section {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  background: var(--bg-secondary);
  padding: 1rem 0.5rem; /* Reducido el padding lateral */
  position: relative;
  /* Remover overflow-y: auto que puede interferir con sticky */
}

.preview-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
}

/* ✅ CORRECCIÓN: Vista previa que realmente sigue el scroll */
.card-preview {
  width: 100%;
  max-width: 800px; /* Antes: 600px */
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
  position: sticky;
  top: 2rem; /* Cambiar de 20px a 2rem para más espacio */
  align-self: flex-start; /* Importante para que sticky funcione correctamente */
}

.preview-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.02em;
  position: relative;
}

.preview-title::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
  border-radius: 2px;
}

/* ===== CARRUSEL DE IMÁGENES MODERNO ===== */
.image-carousel-wrapper {
  position: relative;
  width: 100%;
  margin-bottom: 2rem;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  padding: 0;
  line-height: 1;
}

.nav-arrow:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: translateY(-50%) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.nav-arrow.left {
  left: 1rem;
}

.nav-arrow.right {
  right: 1rem;
}

.preview-image.large {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 400px;
  background: var(--gray-100);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
}

.preview-image.large img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: none;
  transition: all var(--transition-normal);
}

.preview-image.large img[style*="display: block"] {
  display: block !important;
}

.image-placeholder {
  font-size: 1.1rem;
  color: var(--gray-500);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.image-placeholder::before {
  content: "📷";
  font-size: 2rem;
}

.carousel-counter {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--gray-600);
  font-weight: 500;
  background: var(--gray-100);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-xl);
  display: inline-block;
  margin-left: 50%;
  transform: translateX(-50%);
}

/* ===== TEXTO DE VISTA PREVIA ===== */
.preview-text-below {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Elimino el estilo especial de .preview-price */
/* .preview-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
} */

.preview-price-secondary {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  margin: 0;
}

.preview-location {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-600);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-location::before {
  content: "📍";
  font-size: 1.2rem;
}

.preview-desc {
  font-size: 1rem;
  color: var(--gray-700);
  line-height: 1.6;
  margin: 0;
  padding: 1.5rem;
  background: var(--gray-50);
  border-radius: var(--border-radius-md);
  border-left: 4px solid var(--primary);
  white-space: pre-wrap;
}

/* ===== UTILIDADES ===== */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
  .form-section {
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
    padding: 1.5rem;
  }

  .preview-section {
    padding: 1.5rem;
  }

  .card-preview {
    position: static; /* En tablet/móvil no sticky */
    top: auto;
  }
}

@media (max-width: 768px) {
  .form-section,
  .preview-section {
    padding: 1rem;
  }

  .card-title,
  .preview-title {
    font-size: 1.5rem;
  }

  /* ✅ MEJORA MÓVIL: Área de subida más grande y clara */
  .photo-upload {
    height: 180px; /* Aumentado de 150px */
    padding: 1.5rem 1rem;
    border-width: 3px; /* Borde más grueso para mejor visibilidad */
  }

  .photo-icon {
    font-size: 2.5rem; /* Aumentado de 2rem */
    margin-bottom: 1.25rem; /* Más espacio */
  }

  .photo-text {
    font-size: 1.1rem; /* Texto más grande */
    line-height: 1.4;
  }

  .photo-text #photoTextLine3 {
    font-size: 0.75rem;
    margin-top: 0.4rem;
  }

  /* ✅ MEJORA: Contador de fotos en la misma posición que PC */
  .photo-text .photo-count {
    position: absolute;
    top: -80px;
    left: -120px;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    z-index: 3;
  }

  /* ✅ MEJORA: Thumbnails más grandes para mejor usabilidad táctil */
  .thumbnail {
    width: 100px; /* Aumentado de 80px */
    height: 100px; /* Aumentado de 80px */
  }

  .thumbnail-container {
    gap: 1rem; /* Más espacio entre thumbnails */
    padding: 1rem;
    min-height: 100px; /* Más altura */
  }

  .form-group {
    margin-bottom: 1.25rem;
  }

  .form-group input,
  .form-group select,
  .form-group textarea,
  .custom-select-trigger {
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
  }

  .preview-image.large {
    height: 300px;
  }

  .nav-arrow {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .preview-price {
    font-size: 1.5rem;
  }

  .custom-select-options {
    max-height: 250px;
  }


}

@media (max-width: 480px) {
  .sell-container {
    padding: 0.25rem;
    gap: 0.5rem;
  }

  .form-section,
  .preview-section {
    padding: 0.75rem;
  }

  .card-form,
  .card-preview {
    padding: 1rem;
  }

  .card-title,
  .preview-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }

  /* ✅ MEJORA MÓVIL PEQUEÑO: Área de subida optimizada */
  .photo-upload {
    height: 160px; /* Aumentado de 120px */
    padding: 1.25rem 0.75rem;
    border-width: 3px;
  }

  .photo-icon {
    font-size: 2.25rem;
    margin-bottom: 1rem;
  }

  .photo-text {
    font-size: 1rem;
    line-height: 1.3;
  }

  .photo-text #photoTextLine3 {
    font-size: 0.7rem;
    margin-top: 0.3rem;
  }

  /* ✅ MEJORA: Contador de fotos en la misma posición que PC */
  .photo-text .photo-count {
    position: absolute;
    top: -70px;
    left: -100px;
    background: var(--primary);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    z-index: 3;
  }

  /* ✅ MEJORA: Thumbnails más grandes para usabilidad táctil */
  .thumbnail {
    width: 90px; /* Aumentado de 70px */
    height: 90px; /* Aumentado de 70px */
  }

  .thumbnail-container {
    gap: 0.75rem;
    padding: 0.75rem;
    min-height: 90px;
  }

  .remove-btn {
    width: 22px; /* Aumentado de 20px */
    height: 22px; /* Aumentado de 20px */
    font-size: 0.8rem;
    top: 4px;
    left: 4px;
  }

  .form-group {
    margin-bottom: 1rem;
  }

  .btn-submit {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }

  .preview-image.large {
    height: 250px;
  }

  .nav-arrow {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }

  .nav-arrow.left {
    left: 0.5rem;
  }

  .nav-arrow.right {
    right: 0.5rem;
  }


}

/* ===== ANIMACIONES ADICIONALES ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-section,
.preview-section {
  animation: fadeInUp 0.6s ease-out;
}

.form-group {
  animation: fadeInUp 0.6s ease-out;
}

.form-group:nth-child(2) {
  animation-delay: 0.1s;
}

.form-group:nth-child(3) {
  animation-delay: 0.2s;
}

.form-group:nth-child(4) {
  animation-delay: 0.3s;
}

.form-group:nth-child(5) {
  animation-delay: 0.4s;
}

/* ===== MEJORAS DE ACCESIBILIDAD ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus visible para navegación por teclado */
.custom-select-trigger:focus-visible,
.btn-submit:focus-visible,
.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible,
.photo-upload:focus-visible,
.thumbnail:focus-visible,
.nav-arrow:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== SCROLL PERSONALIZADO ===== */
.form-section::-webkit-scrollbar,
.preview-section::-webkit-scrollbar,
.custom-select-options::-webkit-scrollbar {
  width: 8px;
}

.form-section::-webkit-scrollbar-track,
.preview-section::-webkit-scrollbar-track,
.custom-select-options::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: 4px;
}

.form-section::-webkit-scrollbar-thumb,
.preview-section::-webkit-scrollbar-thumb,
.custom-select-options::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: 4px;
}

.form-section::-webkit-scrollbar-thumb:hover,
.preview-section::-webkit-scrollbar-thumb:hover,
.custom-select-options::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* ===== EFECTOS DE SELECCIÓN ===== */
::selection {
  background: var(--primary-light);
  color: var(--primary-hover);
}

::-moz-selection {
  background: var(--primary-light);
  color: var(--primary-hover);
}

/* ===== ESTADOS DE CARGA ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top: 3px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ===== MEJORAS FINALES ===== */
.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--gray-300);
}

.custom-select-trigger span {
  flex: 1;
  text-align: left;
  color: var(--gray-800);
}

.custom-select-trigger span:empty::before {
  content: "Seleccione";
  color: var(--gray-500);
}

/* Optimización para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
  .thumbnail:hover,
  .custom-select-trigger:hover,
  .btn-submit:hover {
    transform: none;
  }

  .photo-upload:hover {
    transform: none;
  }

  /* ✅ MEJORA TÁCTIL: Área de subida más responsiva */
  .photo-upload {
    min-height: 120px;
    touch-action: manipulation;
  }

  /* ✅ MEJORA TÁCTIL: Thumbnails más fáciles de tocar */
  .thumbnail {
    touch-action: manipulation;
    min-width: 60px;
    min-height: 60px;
  }

  /* ✅ MEJORA TÁCTIL: Botones de eliminar más grandes */
  .remove-btn {
    min-width: 24px;
    min-height: 24px;
    touch-action: manipulation;
  }

  /* ✅ MEJORA TÁCTIL: Mejor feedback visual */
  .photo-upload:active {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-primary) 100%);
    border-color: var(--primary);
    transform: scale(0.98);
  }

  .thumbnail:active {
    transform: scale(0.95);
  }
}