/*Custom CSS*/
.lastname {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  height: 0;
  width: 0;
  z-index: -1;
}

.btn-label-fb {
  background-color: #1877f2; /* Facebook Blue */
  color: white;
  border: none;
}

.btn-label-google {
  background-color: #db4437; /* Google Red */
  color: white;
  border: none;
}

.btn-label-x {
  background-color: #000000; /* X (Twitter) Black */
  color: white;
  border: none;
}

.btn-label-whatsapp {
  background-color: #25d366; /* WhatsApp Green */
  color: white;
  border: none;
}

/* Optional: Hover effect */
.btn-label-facebook:hover,
.btn-label-google:hover,
.btn-label-x:hover,
.btn-label-whatsapp:hover {
  opacity: 0.85;
}

#otp-container {
  display: none; /* hidden by default */
  flex-direction: column;
  justify-content: flex-start; /* push content to top instead of center */
  align-items: center;
  min-height: 100vh;
  padding-top: 20vh; /* push it down a bit from the top */
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#otp-container.show {
  display: flex;
  opacity: 1;
  transform: scale(1);
}

#otp-container .otp-row {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.otp-input {
  width: 60px;
  height: 60px;
  text-align: center;
  font-size: 28px;
  font-weight: bold;
  border: 2px solid #007bff;
  border-radius: 8px;
  margin: 0 5px;
  outline: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.otp-input:focus {
  border-color: #0056b3;
  transform: scale(1.1);
}

@keyframes shake {
  0% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-5px);
  }
  40% {
    transform: translateX(5px);
  }
  60% {
    transform: translateX(-5px);
  }
  80% {
    transform: translateX(5px);
  }
  100% {
    transform: translateX(0);
  }
}

.shake {
  animation: shake 0.4s ease;
}