/* ============================================================================
   FORMULÁRIO DE CONTATO
   ============================================================================ */

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--color-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
  margin-bottom: 0;
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  background-color: var(--color-white);
  color: var(--color-text-dark);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 37, 64, 0.1);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

/* VALIDAÇÃO */
input.error,
textarea.error {
  border-color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.05);
}

input.error:focus,
textarea.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

input.success,
textarea.success {
  border-color: var(--color-success);
  background-color: rgba(16, 185, 129, 0.05);
}

input.success:focus,
textarea.success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: none;
}

.error-message.show {
  display: block;
}

/* BOTÃO SUBMIT */
.form-submit {
  width: 100%;
  padding: var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-submit:hover:not(:disabled) {
  background-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-submit.loading {
  position: relative;
  color: transparent;
}

.form-submit.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-white);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* MENSAGEM DE SUCESSO */
.form-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  display: none;
  animation: slideDown 0.4s ease-out;
}

.form-success.show {
  display: block;
}

.form-success-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.form-success-message {
  font-size: var(--font-size-sm);
}

/* MENSAGEM DE ERRO */
.form-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  display: none;
  animation: slideDown 0.4s ease-out;
}

.form-error.show {
  display: block;
}

.form-error-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.form-error-message {
  font-size: var(--font-size-sm);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* RESPONSIVIDADE */
@media (max-width: 768px) {
  .form-container {
    padding: var(--spacing-lg);
  }

  label {
    font-size: var(--font-size-xs);
  }

  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="number"],
  select,
  textarea {
    padding: var(--spacing-md);
    font-size: 16px; /* Evita zoom em iOS */
  }
}