.form-submissao {
  margin-top: 32px;
  padding: 64px 56px;
  background: rgba(255,255,255,0.03);
  border-top: 1px solid var(--linha-escura);
  border-bottom: 1px solid var(--linha-escura);
  border-radius: 2px;
}

.form-linha {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.form-campo {
  margin-bottom: 28px;
}

.form-campo label {
  display: block;
  font-size: 14px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  margin-bottom: 12px;
}

.form-campo input,
.form-campo select,
.form-campo textarea {
  width: 100%;
  padding: 16px 20px;
  background: rgba(6,21,48,0.65);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 2px;
  color: var(--branco);
  font-family: var(--font-texto);
  font-size: 17px;
  line-height: 1.55;
  transition: border-color .25s var(--curva), background .25s var(--curva);
}

.form-campo textarea {
  resize: vertical;
  min-height: 180px;
  font-family: var(--font-texto);
}

.form-campo input::placeholder,
.form-campo textarea::placeholder {
  color: rgba(255,255,255,0.38);
}

.form-campo input:focus,
.form-campo select:focus,
.form-campo textarea:focus {
  outline: none;
  border-color: var(--verde-400);
  background: rgba(6,21,48,0.9);
  box-shadow: 0 0 0 3px rgba(184,230,0,0.12);
}

.form-campo input:invalid:not(:placeholder-shown),
.form-campo textarea:invalid:not(:placeholder-shown) {
  border-color: rgba(229,72,77,0.5);
}

.form-campo select option {
  background: #0A1F44;
  color: var(--branco);
}

.form-campo small {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}

.form-campo input[type="file"] {
  padding: 14px 16px;
  cursor: pointer;
  color: rgba(255,255,255,0.8);
  font-size: 15px;
}

.form-campo input[type="file"]::file-selector-button {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--branco);
  padding: 10px 18px;
  margin-right: 16px;
  font-family: var(--font-texto);
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  border-radius: 2px;
  transition: background .2s var(--curva);
}

.form-campo input[type="file"]::file-selector-button:hover {
  background: rgba(255,255,255,0.18);
}

.form-acoes {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  margin-top: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--linha-escura);
}

.form-nota {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  line-height: 1.6;
}

/* ============================================================
   MENSAGEM DE SUCESSO / ERRO
   ============================================================ */
.form-mensagem {
  margin-top: 32px;
  padding: 32px 36px;
  border-left: 4px solid var(--verde-400);
  background: rgba(184,230,0,0.08);
  border-radius: 2px;
  animation: surgir-mensagem .6s var(--curva);
}

.form-mensagem h3 {
  font-family: var(--font-titulo);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.015em;
  color: var(--verde-400);
  margin-bottom: 12px;
  line-height: 1.2;
}

.form-mensagem .mensagem-corpo {
  font-size: 17px;
  color: rgba(255,255,255,0.9);
  line-height: 1.65;
  margin-bottom: 16px;
}

.form-mensagem .mensagem-numero {
  display: inline-block;
  padding: 10px 20px;
  background: rgba(6,21,48,0.6);
  border: 1px solid var(--verde-400);
  border-radius: 2px;
  font-family: var(--font-titulo);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .12em;
  color: var(--verde-400);
  margin-bottom: 16px;
}

.form-mensagem .mensagem-rodape {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.form-mensagem.erro {
  border-left-color: #E5484D;
  background: rgba(229,72,77,0.1);
}
.form-mensagem.erro h3 { color: #FF6B6F; }
.form-mensagem.erro .mensagem-numero { border-color: #E5484D; color: #FF6B6F; }

@keyframes surgir-mensagem {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 
   RESPONSIVO
    */
@media (max-width: 860px) {
  .form-submissao { padding: 48px 28px; }
  .form-linha { grid-template-columns: 1fr; gap: 0; }
  .form-campo { margin-bottom: 24px; }
  .form-mensagem { padding: 26px 24px; }
  .form-mensagem h3 { font-size: 22px; }
  .form-mensagem .mensagem-corpo { font-size: 16px; }
}