/* Reset básico y variables de color */
:root {
  --vac: #2E86AB;     /* Verde Azul Oscuro */
  --naranja: #F18F01; /* Naranja */
  --blanco: #FFFFFF;   /* Blanco */
  --sombra: 0 2px 10px rgba(0, 0, 0, 0.1);
  --transicion: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--vac);
  color: var(--blanco);
  line-height: 1.6;
  padding-top: 80px; /* Espacio para el header fijo */
}

/* HEADER */
.main-header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--naranja);
  color: var(--blanco);
  z-index: 1000;
  box-shadow: var(--sombra);
  height: 80px;
}

.header-container {
  width: 90%;
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 20px;
}

.nav-link {
  color: var(--blanco);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 4px;
  transition: var(--transicion);
}

.nav-link:hover {
  background-color: var(--vac);
}

/* CONTENIDO PRINCIPAL */
.main-content {
  min-height: calc(100vh - 160px); /* Altura total menos header y footer */
}

.content-section {
  padding: 40px 0;
  scroll-margin-top: 80px; /* Offset para el header fijo */
}

.section-container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  margin-bottom: 20px;
  color: var(--naranja);
}

.section-description {
  margin-bottom: 30px;
  font-size: 1.1rem;
}

/* FORMULARIO */
.product-form {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 8px;
  margin-top: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.9);
}

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

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

.price-input {
  position: relative;
}

.price-input input {
  padding-right: 30px;
}

.currency-symbol {
  position: absolute;
  right: 12px;
  top: 12px;
  font-weight: bold;
  color: #333;
}

.image-options {
  display: flex;
  gap: 20px;
  margin-top: 10px;
}

.option-group {
  flex: 1;
}

.supplier-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.supplier-contact {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.contact-option {
  display: flex;
  align-items: center;
  gap: 5px;
}

.submit-btn {
  background-color: var(--naranja);
  color: var(--blanco);
  border: none;
  padding: 12px 24px;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transicion);
  width: 100%;
  margin-top: 10px;
}

.submit-btn:hover {
  background-color: #e07f00;
}

/* INVENTARIO */
.inventory-controls {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.control-btn {
  background-color: var(--naranja);
  color: var(--blanco);
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transicion);
}

.control-btn:hover {
  background-color: #e07f00;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.product-card {
  background-color: var(--blanco);
  color: #333;
  border-radius: 8px;
  padding: 20px;
  box-shadow: var(--sombra);
}

.product-card h3 {
  color: var(--naranja);
  margin-bottom: 15px;
}

.product-card p {
  margin-bottom: 8px;
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: contain;
  margin: 10px 0;
  background-color: #f5f5f5;
  border-radius: 4px;
}

.product-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 15px;
}

.edit-btn, .delete-btn {
  padding: 8px 15px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transicion);
}

.edit-btn {
  background-color: var(--vac);
  color: var(--blanco);
}

.delete-btn {
  background-color: #ff4444;
  color: var(--blanco);
}

.empty-message {
  text-align: center;
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.7);
}

/* EXPORTAR */
.export-options {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.export-btn {
  background-color: var(--naranja);
  color: var(--blanco);
  border: none;
  padding: 15px 30px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transicion);
  display: flex;
  align-items: center;
  gap: 10px;
}

.export-btn:hover {
  background-color: #e07f00;
}

/* FOOTER */
.main-footer {
  background-color: var(--blanco);
  color: var(--vac);
  padding: 30px 0;
  text-align: center;
}

.footer-container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-title {
  margin-bottom: 20px;
}

.contact-info {
  margin-bottom: 20px;
}

.contact-item {
  margin-bottom: 10px;
}

.contact-link {
  color: var(--vac);
  text-decoration: none;
}

.contact-link:hover {
  text-decoration: underline;
}

.credits {
  font-style: italic;
  color: #666;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  body {
    padding-top: 120px;
  }

  .main-header {
    height: auto;
    padding: 10px 0;
  }

  .header-container {
    flex-direction: column;
  }

  .main-nav ul {
    margin-top: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .export-options {
    flex-direction: column;
    align-items: center;
  }

  .content-section {
    scroll-margin-top: 120px;
  }
}

@media (max-width: 480px) {
  .product-list {
    grid-template-columns: 1fr;
  }
}