* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}

body {
  background: url(https://images.pexels.com/photos/5466789/pexels-photo-5466789.jpeg?cs=srgb&dl=pexels-olia-danilevich-5466789.jpg&fm=jpg) no-repeat;
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.conversor-divisas {
  padding: 2rem;
  border-radius: 20px;
  border: 2px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(15px);
  max-width: 500px;
  width: 100%;
  text-align: center;
}

.fila-divisas {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.caja-divisa {
  flex: 1;
  text-align: left;
}

.grupo-entrada {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

input, select {
  padding: 12px;
  border-radius: 12px;
  border: 2px solid #eee;
  transition: all 0.3s ease; 
}

.boton-convertir {
  background: rgba(255, 255, 255, 0.8);
  color: rgb(5, 4, 4);
  border: none;
  border-radius: 30px;
  padding: 14px;
  width: 50%;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.5s ease; 
}

.boton-convertir:hover {
  background-color: #ffffff;
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

#cantidadResultado {
  background-color: rgba(255, 255, 255, 0.2);
  font-weight: bold;
  border: 2px solid rgba(255, 255, 255, 0.8);
  color: #000;
}

@media (max-width: 480px) {
  .fila-divisas {
    flex-direction: column;
    align-items: stretch;
  }
}