#btn-hoy {
  position: fixed;
  top: 20px;
  left: -40px;
  width: 90px;
  height: 40px;
  background-color: #3b82f6;
  color: #f3f4f6; /* texto claro */
  border: none;
  border-radius: 8px;
  cursor: pointer;
  z-index: 1; /* menor que o header */
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  padding-left: 50px; /* desloca o texto para a direita */
}

#btn-hoy:hover {
  background-color: #20498b;
  color: #f3f4f6;
  transform: scale(1.05);
}