form {
      background: #ffffff;
      border-radius: 16px;
      /* padding: 40px; */
      width: 100%;
      /* width: 850px; */
      /* box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); */
    }

    #form-catalogue {
      width: 100%;
    }

    label {
      font-weight: 500;
      margin-top: 18px;
      display: block;
    }

    #form-catalogue label {
      font-weight: 400;
      margin-top: 10px;
      display: block;
    }

    .form-grid .consent label {
      font-size: 14px;
      font-weight: 400;
      display: flex;
      flex: 1 1 0;
      min-width: 0;
      align-items: center;
      margin: 8px 0 8px 0;
    }

    .consent {
      display: flex;
      flex-wrap: wrap;
    }

    .consent input[type="checkbox"] {
      margin-right: 12px;
      width: 20px;
    }

    .consent .error-message {
      flex-basis: 100%;
      margin: 4px 0 8px 32px;
    }

    .captcha-area {
    margin-top: 15px;
    }

    input,
    textarea,
    select {
      width: 100%;
      padding: 12px;
      margin-top: 6px;
      border-radius: 8px;
      border: 1px solid #ccc;
      font-size: 15px;
    }

   #submitBtn {
      background-color: #f5a623;
      color: white;
      font-weight: bold;
      cursor: pointer;
      margin-top: 25px;
      font-size: 18px;
      border: none;
      padding: 14px;
      border-radius: 8px;
      transition: .3s;
    }

    #submitBtn:hover {
      background-color: #d87c15;
      transition: .3s;
    }

    .demand-buttons {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 16px;
    }

    .demand-buttons button {
      display: flex;
      font-family: 'Poppins';
      justify-content: center;
      align-items: center;
      padding: 16px;
      font-size: 18px;
      background-color: #f9f9f9;
      border: 2px solid #ddd;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s;
    }

    .demand-buttons button:hover {
      background-color: #f0f0f0;
      border-color: #f5a623;
      color: #131523;
    }

    .demand-buttons button.selected {
      background-color: #f5a623;
      color: white;
      border-color: #f5a623;
    }

    .consent a {
    text-decoration: underline #131523;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    }

    .hidden {
      display: none;
    }

    .error-message {
      color: #f74f4f;
      font-size: 0.7em;
      margin-top: 6px;
      display: block;
      height: auto;
      /* réserve de l’espace même quand vide */
    }

    .error-message:empty {
      display: none; 
    }

    .input-error {
      border-color: #f74f4f;
    }

    input[type="checkbox"] {
      width: auto;
    }

    /* Animation d'apparition/disparition fluide */
    .animated-toggle {
      transition: opacity 0.3s;
      opacity: 1;
    }

    .animated-toggle.hide {
      opacity: 0;
    }

    .animated-toggle.gone {
      display: none;
    }

    @keyframes shake {
      0% {
        transform: translateX(0);
      }

      20% {
        transform: translateX(-8px);
      }

      40% {
        transform: translateX(8px);
      }

      60% {
        transform: translateX(-6px);
      }

      80% {
        transform: translateX(6px);
      }

      100% {
        transform: translateX(0);
      }
    }

    .input-error.shake,
    .error-message.shake {
      animation: shake 0.35s;
      will-change: transform;
    }

    .error-message.shake {
      animation: shake 0.35s;
      will-change: transform;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0px 20px;
      /* 24px vertical, 20px horizontal */
    }

    .d-flex {
      display: flex;
    }

    /* Pour que certains champs occupent toute la largeur */
    .form-grid .full-width {
      grid-column: 1 / 3;
    }

  /* Base des alertes animées */
.alert {
  opacity: 0;
  transform: translateY(-6px);
  max-height: 0;
  overflow: hidden;
  pointer-events: none;
  font-size: 17px;
  margin-top:24px;
  transition:
    opacity .35s ease,
    transform .35s ease,
    max-height .35s ease;
}

/* État visible */
.alert-show {
  opacity: 1;
  transform: translateY(0);
  max-height: 160px; /* suffisante pour 2-3 lignes */
  pointer-events: auto;
}

/* Styles visuels (optionnel si tu as déjà les tiens) */
.alert-success { background:#e6ffed; border:1px solid #b7f5c9; padding:12px; border-radius:8px; color:#007721; text-align: center;}
.alert-error   { background:#ffecec; border:1px solid #ffd0d0; padding:12px; border-radius:8px; }

button[disabled],
.btn-locked {
  opacity: .5;
  cursor: not-allowed !important;
}


/* Petit shake pour l’erreur */
@keyframes shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}
.shake { animation: shake .35s; }

/* Accessibilité : réduire l’animation si l’utilisateur le demande */
@media (prefers-reduced-motion: reduce) {
  .alert { transition: none; transform: none; }
  .shake { animation: none; }
}


    /* Responsive : 1 colonne sur petit écran */
    @media (max-width: 700px) {
      .form-grid {
        grid-template-columns: 1fr;
        gap: 18px 0;
      }



      .form-grid .full-width {
        grid-column: 1;
      }
    }

    /* Adapter le label et input pour qu’ils prennent la largeur de la colonne */
    .form-grid label,
    .form-grid input,
    .form-grid select,
    .form-grid textarea {
      width: 100%;
      box-sizing: border-box;
      font-size: 16px;
      font-family: 'Poppins';
    }