#whatsappButton,
#whatsappModal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#whatsappButton.loaded,
#whatsappModal.loaded {
  opacity: 1;
  transform: translateY(0);
}

#whatsappButton {
  position: fixed;
  bottom: clamp(20px, 5vw, 30px);
  right: clamp(20px, 5vw, 30px);
  width: clamp(60px, 5vw, 70px);
  height: clamp(60px, 5vw, 70px);
  cursor: pointer;
  z-index: 10000;
  transition: 0.5s ease;
  animation: floatUpDown 2s ease-in-out infinite;
}

#whatsappButton:hover {
  filter: brightness(1.3);
}

#whatsappModal {
  position: fixed;
  bottom: clamp(20px, 5vw, 30px);
  right: clamp(20px, 5vw, 30px);
  background: white;
  border-radius: 10px;
  padding: 1.5rem 2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
  width: 320px;
  max-width: 95vw;
  color: var(--texto-principal);
  
  visibility: hidden;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  z-index: 10001;
}

#whatsappModal.active {
  opacity: 1;
  transform: scale(1);
  visibility: visible;
}

#whatsappModal p {
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

#whatsappModal form {
  position: relative;
  margin-top: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

#whatsappModal input[type="text"],
#whatsappModal input[type="email"],
#whatsappModal input[type="tel"] {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 1.8px solid var(--secundaria);
  border-radius: 6px;
  font-size: 1rem;
  color: var(--texto-principal);
  transition: border-color 0.3s ease;
}

#whatsappModal input[type="text"]:focus,
#whatsappModal input[type="email"]:focus,
#whatsappModal input[type="tel"]:focus {
  outline: none;
  border-color: var(--primaria);
  box-shadow: 0 0 6px var(--primaria);
}

#whatsappModal input::placeholder {
  color: #999;
  opacity: 1;
}

#whatsappModal label.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.9rem;
  cursor: pointer;
}

#whatsappModal label.checkbox-label input[type="checkbox"] {
  transform: scale(1.1);
  margin-right: 5px;
}

#whatsappModal button#submitBtn {
  background-color: var(--destaque-contraste);
  color: white;
  font-weight: 700;
  padding: 1rem 2rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.5s ease, color 0.5s ease;
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: 5px;
}

#whatsappModal button#submitBtn:disabled {
  background-color: var(--secundaria);
  cursor: not-allowed;
}

#whatsappModal button#submitBtn:hover:not(:disabled) {
  background-color: var(--texto-destaque);
  color: var(--destaque-escuro);
}

#whatsappModal button#closeModal {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--secundaria);
  transition: color 0.2s ease;
  line-height: 1;
  padding: 0;
}

#whatsappModal button#closeModal:hover {
  background: transparent !important;
  filter: brightness(0.5);
}

#formMessage {
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@keyframes fadeInScale {
  0% {
  opacity: 0;
  transform: scale(0.9);
  }
  100% {
  opacity: 1;
  transform: scale(1);
  }
}

@keyframes floatUpDown {
  0%, 100% {
  transform: translateY(0);
  }
  50% {
  transform: translateY(-10px);
  }
}

#whatsappModal.active {
  animation: fadeInScale 0.35s ease forwards;
}

#whatsappOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.4); 
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 10000;
}

#whatsappOverlay.active {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 768px) {
  #whatsappModal {
    top: auto;
    bottom: clamp(10px, 3vw, 20px);
    right: 3%;
    left: auto;
    transform: scale(0.9);
    width: 95%;
    max-width: 400px;
  }

  #whatsappModal.active {
    transform: scale(1);
  }
}