* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  }
  body {
    margin: 0;
    padding: 16px;
    min-height: 100vh;
    background-color: #f3f7f5;
    background-image:
      radial-gradient(at 12% 8%, rgba(37, 211, 102, 0.10) 0px, transparent 48%),
      radial-gradient(at 88% 92%, rgba(0, 86, 179, 0.08) 0px, transparent 52%),
      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64' viewBox='0 0 64 64'%3E%3Cg fill='none' stroke='%231e3a2f' stroke-opacity='0.055' stroke-width='1'%3E%3Cpath d='M32 0v64M0 32h64'/%3E%3Ccircle cx='32' cy='32' r='10'/%3E%3Cpath d='M0 0l10 10M64 0L54 10M0 64l10-10M64 64l-10-10'/%3E%3C/g%3E%3C/svg%3E");
    background-attachment: fixed;
  }
  /* Campo anti-spam (honeypot): fora da tela para pessoas */
  .hp-campo {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  .form-container {
    max-width: 500px;
    margin: 16px auto;
    background: #ffffff;
    padding: 32px;
    border-radius: 14px;
    border: 1px solid rgba(30, 58, 47, 0.08);
    box-shadow: 0 12px 32px rgba(15, 35, 25, 0.07), 0 2px 6px rgba(15, 35, 25, 0.03);
  }
  @media (min-width: 768px) {
    .form-container {
      margin: 56px auto;
    }
  }
  .form-container h2 {
    color: #333;
    margin-bottom: 5px;
    text-align: center;
  }
  .form-container p {
    color: #666;
    text-align: center;
    font-size: 14px;
    margin-bottom: 25px;
  }
  fieldset {
    border: none;
    padding: 0;
    margin-bottom: 25px;
  }
  legend {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
    width: 100%;
    padding-bottom: 5px;
  }
  .input-group {
    margin-bottom: 15px;
  }
  .input-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: #444;
  }
  .input-group input, 
  .input-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
    background-color: #fcfcfc;
    transition: border-color 0.3s ease;
  }
  .input-group input:focus, 
  .input-group select:focus {
    border-color: #0056b3;
    outline: none;
  }
  button {
    width: 100%;
    padding: 15px;
    background-color: #25D366; /* Cor do WhatsApp para conversão */
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  button:hover {
    background-color: #1ebe5d;
  }

  /* Página de Obrigado */
  .obrigado {
    margin-top: 10vh;
    text-align: center;
    animation: surgir 0.5s ease-out;
  }
  .obrigado h1 {
    color: #333;
    margin: 10px 0;
  }
  .obrigado p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 0;
  }
  .obrigado-icone {
    width: 70px;
    height: 70px;
    margin: 0 auto;
    border-radius: 50%;
    background-color: #25D366;
    color: #fff;
    font-size: 36px;
    line-height: 70px;
  }
  @keyframes surgir {
    from { opacity: 0; transform: translateY(15px); }
    to   { opacity: 1; transform: translateY(0); }
  }