.submit-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 20px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #2980b9;
}

.submit-btn i {
    margin-right: 10px;
}

/* Estilos para o popup */
.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.popup-content {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    max-width: 400px;
    text-align: center;
    position: relative;
}

.popup h2 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.popup h2 i {
    margin-right: 10px;
}

.popup p {
    margin-bottom: 20px;
}

.close-popup {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: #7f8c8d;
}

.close-popup:hover {
    color: #34495e;
}

/* Estilo para mensagens de erro */
.error {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 5px;
}

/* Estilo para campos inválidos */
input:invalid, textarea:invalid {
    border-color: #e74c3c;
}

.waiting-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.popup-content {
    background: white;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    max-width: 80%;
}

.fa-check-circle {
    color: #4CAF50;
    font-size: 2em;
    margin-bottom: 15px;
    margin-left: 15px;
}



/* Container do texto */
.btn-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.3s ease;
}

/* Estilo do popup */
.waiting-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.popup-content {
  background-color: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  max-width: 300px;
}

/* Animação da ampulheta */
.hourglass-animation {
  font-size: 50px;
  margin-bottom: 20px;
  animation: flipHourglass 2s infinite;
}

@keyframes flipHourglass {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(180deg); }
  100% { transform: rotate(360deg); }
}

.popup-content p {
  margin: 10px 0;
  color: #333;
  font-size: 16px;
}

.popup-content p:first-of-type {
  font-weight: bold;
  font-size: 18px;
}