:root {
  /* Tema claro (actual) */
  --color-fondo-light: #faf3e0;
  --color-texto-light: #6b4d21;
  --color-acento-light: #d4a017;
  --color-borde-light: #e0d6c2;
  --color-grupo-light: rgba(255, 255, 255, 0.7);
  
  /* Tema oscuro */
  --color-fondo-dark: #1e1e1e;
  --color-texto-dark: #e0e0e0;
  --color-acento-dark: #d4a017;
  --color-borde-dark: #3a3a3a;
  --color-grupo-dark: rgba(40, 40, 40, 0.7);
  
  /* Valores por defecto */
  --color-fondo: var(--color-fondo-light);
  --color-texto: var(--color-texto-light);
  --color-acento: var(--color-acento-light);
  --color-borde: var(--color-borde-light);
  --color-grupo: var(--color-grupo-light);
  --max-contenido-ancho: 1200px;
  --grupos-ancho: 220px;
  --boton-grupo-ancho: 180px;
  --boton-grupo-seleccionado-ancho: 200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-fondo);
  color: var(--color-texto);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-mode {
  --color-fondo: var(--color-fondo-dark);
  --color-texto: var(--color-texto-dark);
  --color-acento: var(--color-acento-dark);
  --color-borde: var(--color-borde-dark);
  --color-grupo: var(--color-grupo-dark);
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-contenido-ancho);
  padding: 70px 20px 60px;
  margin: 0 auto;
}

/* ---------- Menú principal mejorado ---------- */
.menu-wrapper {
  position: fixed;
  top: 15px;
  right: 20px;
  z-index: 1000;
}

.menu-container {
  position: relative;
  display: inline-block;
}

.menu-button {
  padding: 10px 20px;
  background-color: var(--color-acento);
  color: var(--color-texto);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  min-width: 110px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.menu-button:hover {
  background-color: #e6b800;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  background-color: var(--color-grupo);
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  width: 320px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  margin-top: 8px;
  overflow: hidden;
  z-index: 1001;
  transition: all 0.3s ease;
}

.dropdown-menu.show {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

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

/* Secciones del menú */
.menu-section {
  padding: 18px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.menu-section:last-child {
  border-bottom: none;
}

.menu-section h3 {
  margin: 0 0 16px 0;
  font-size: 1.1rem;
  color: var(--color-texto);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-acento);
  font-weight: 600;
}

/* Formulario mejorado */
#miFormulario {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#miFormulario label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-texto);
  opacity: 0.8;
}

#miFormulario input {
  padding: 10px 14px;
  border: 1px solid var(--color-borde);
  border-radius: 6px;
  width: 100%;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  background-color: var(--color-fondo);
  color: var(--color-texto);
}

#miFormulario input:focus {
  outline: none;
  border-color: var(--color-acento);
  box-shadow: 0 0 0 3px rgba(212, 160, 23, 0.15);
}

.error-message {
  display: none;
  color: #ff6b6b;
  font-size: 0.8rem;
  margin-top: 2px;
}

/* Botones */
.button {
  padding: 10px 18px;
  background-color: var(--color-acento);
  color: var(--color-texto);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.button:hover {
  background-color: #e6b800;
  transform: translateY(-1px);
}

.button-primary {
  background-color: var(--color-acento);
  color: var(--color-texto);
  font-weight: 600;
  margin-top: 8px;
}

.button-danger {
  background-color: #ff6b6b;
  color: white;
  border: none;
}

.button-danger:hover {
  background-color: #e05555;
}

.action-icon {
  font-size: 1.1em;
}

/* Botones de acción */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.menu-action {
  display: flex;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  justify-content: flex-start;
}

/* ---------- Layout principal ---------- */
.layout-container {
  display: flex;
  gap: 25px;
  margin-top: 25px;
}

/* Columna de grupos */
.group-buttons {
  width: var(--grupos-ancho);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.group-buttons .button {
  width: var(--boton-grupo-ancho);
  text-align: left;
  padding: 10px 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.9rem;
}

.group-buttons .button.active {
  width: var(--boton-grupo-seleccionado-ancho);
  background-color: #e6b800;
}

/* Contenido desplegado */
.saved-buttons {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.group-section {
  background-color: var(--color-grupo);
  border-radius: 10px;
  padding: 18px;
  display: none;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.group-section.active {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 15px;
}

.group-section h3 {
  grid-column: 1 / -1;
  margin: 0 0 15px 0;
  border-bottom: 2px solid var(--color-acento);
  padding-bottom: 8px;
  font-size: 1.2rem;
}

.group-section .button {
  padding: 10px 14px 10px 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  font-size: 0.9rem;
  justify-content: flex-start;
}

.button-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Menú contextual */
.context-menu {
  display: none;
  position: fixed;
  background-color: var(--color-grupo);
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  z-index: 1002;
  min-width: 190px;
  transition: all 0.3s ease;
}

.context-menu-item {
  padding: 10px 16px;
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.context-menu-item:hover {
  background-color: rgba(0,0,0,0.1);
}

/* Selector de tema */
.theme-switcher {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
}

.theme-button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background-color: var(--color-acento);
  color: var(--color-texto);
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.theme-button:hover {
  transform: scale(1.1);
}

/* Estilos para el selector de grupos en el menú contextual */
#groupSelector {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--color-borde);
  border-radius: 4px;
  background-color: var(--color-fondo);
  color: var(--color-texto);
  font-size: 0.9rem;
  cursor: pointer;
}

#groupSelector:focus {
  outline: none;
  border-color: var(--color-acento);
}

#moveToGroupItem {
  padding: 5px 16px;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
}

#moveToGroupItem:hover {
  background-color: transparent;
}

.context-menu-item select option {
  background-color: var(--color-fondo);
  color: var(--color-texto);
}

/* ---------- Pie de página mejorado ---------- */
.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(212, 160, 23, 0.15);
  backdrop-filter: blur(8px);
  padding: 12px 0;
  border-top: 1px solid var(--color-acento);
  z-index: 100;
}

.footer-content {
  max-width: var(--max-contenido-ancho);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-texto);
  font-size: 0.85rem;
}

.version {
  font-family: 'Courier New', monospace;
  background-color: rgba(212, 160, 23, 0.2);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  border: 1px solid var(--color-acento);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .layout-container {
    flex-direction: column;
  }
  
  .group-buttons {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .group-section.active {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }
}

@media (max-width: 600px) {
  body {
    padding-top: 80px;
  }
  
  .dropdown-menu {
    width: 280px;
    right: -20px;
  }
  
  .group-section.active {
    grid-template-columns: 1fr;
  }
  
  .menu-button {
    padding: 12px 18px;
  }

  .footer-content {
    flex-direction: column;
    gap: 5px;
    text-align: center;
  }
  
  .app-footer {
    padding: 8px 0;
  }
}

/* ---------- Otros estilos ---------- */
#titulo {
  text-align: center;
  margin-bottom: 25px;
  color: var(--color-texto);
  font-weight: 600;
  font-size: 2.2rem;
}

.alert {
  background-color: rgba(255, 235, 59, 0.3);
  padding: 12px 18px;
  border-radius: 8px;
  margin: 20px auto;
  max-width: 80%;
  text-align: center;
  border: 1px solid var(--color-acento);
  display: none;
  font-weight: 500;
}

/* Estilo para el botón de grupo cuando está en contexto */
.group-buttons .button:active {
  background-color: rgba(212, 160, 23, 0.3);
}

/* Estilo para el menú contextual de grupo */
#groupContextMenu {
  z-index: 1003; /* Por encima del menú contextual normal */
}

#groupContextMenu .button-danger {
  background-color: #ff6b6b;
  color: white;
  justify-content: flex-start;
  width: 100%;
  margin: 0;
  padding: 10px 16px;
  border-radius: 0;
}

#groupContextMenu .button-danger:hover {
  background-color: #e05555;
}

/* Estilos para el modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.modal-content {
  background-color: var(--color-fondo);
  color: var(--color-texto);
  padding: 25px;
  border-radius: 12px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 5px 25px rgba(0,0,0,0.3);
  border: 1px solid var(--color-acento);
}

.modal h2 {
  color: var(--color-acento);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

.modal h3 {
  margin: 20px 0 10px 0;
  font-size: 1.2rem;
  color: var(--color-acento);
}

.modal ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

.modal li {
  margin-bottom: 8px;
}

.modal p {
  margin-bottom: 15px;
  line-height: 1.5;
}

.modal em {
  font-style: italic;
  opacity: 0.8;
}

#closeModal {
  margin-top: 20px;
  width: 100%;
}

/* Estilos para los botones del modal */
.modal-buttons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.modal-buttons .button {
  flex: 1;
  min-width: 120px;
  text-align: center;
}

.button-secondary {
  background-color: rgba(212, 160, 23, 0.2);
  color: var(--color-texto);
  border: 1px solid var(--color-acento);
}

.button-secondary:hover {
  background-color: rgba(212, 160, 23, 0.3);
}

.action-icon {
  margin-right: 8px;
}

/* Ajustes para móviles */
@media (max-width: 480px) {
  .modal-buttons {
    flex-direction: column;
    gap: 10px;
  }
  
  .modal-buttons .button {
    width: 100%;
  }
}