body {
  font-family: Arial, sans-serif;
  margin: 20px;
  text-align: center;
  background: #f0f0f0;
}

h1 {
  margin-bottom: 20px;
  color: #333;
}

.menu {
  margin-bottom: 20px;
}

button {
  padding: 10px 15px;
  margin: 5px;
  border: none;
  border-radius: 5px;
  background: #4CAF50;
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #45a049;
}

#visor {
  width: 90%;
  height: 500px;
  border: 2px solid #ccc;
  border-radius: 8px;
  background: white;
  margin-top: 20px;
}

/* Tarjeta de tareas (ej6) */
.card {
  background: white;
  width: 80%;
  margin: 20px auto;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: center;
  min-height: 200px;
}

#nuevaTarea {
  width: 70%;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#agregarTarea {
  padding: 10px 15px;
  margin-left: 10px;
  background: #4CAF50;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#listaTareas {
  margin-top: 20px;
  text-align: left;
}

.tarea {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 10px;
}

.tarea span {
  flex-grow: 1;
  margin-left: 10px;
}

.check {
  color: orange;
  cursor: pointer;
  margin-right: 10px;
}

.check.realizada {
  color: green;
}

.eliminar {
  color: red;
  cursor: pointer;
}