/* Bottone Trigger */
    .btn-iscrizione-trigger {
        background-color: #8a1c14; /* Colore primario IATA */
        color: #ffffff;
        font-size: 1.15rem;
        font-weight: bold;
        padding: 15px 35px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        transition: background 0.3s ease, transform 0.1s ease;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
    .btn-iscrizione-trigger:hover {
        background-color: #6b140e;
    }
    .btn-iscrizione-trigger:active {
        transform: scale(0.98);
    }

    /* Struttura Modale (Sfondo) */
    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 9999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }
    .modal-overlay:not([aria-hidden="true"]) {
        opacity: 1;
        visibility: visible;
    }

    /* Finestra dei Contenuti */
    .modal-content {
        background-color: #ffffff;
        width: 100%;
        max-width: 550px;
        padding: 30px;
        border-radius: 8px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        position: relative;
        box-sizing: border-box;
        max-height: 90vh;
        overflow-y: auto;
    }

    /* Animazione di ingresso */
    .animate-fade-in {
        transform: translateY(-20px);
        transition: transform 0.3s ease;
    }
    .modal-overlay:not([aria-hidden="true"]) .modal-content {
        transform: translateY(0);
    }

    /* Bottone X di chiusura */
    .modal-close-trigger {
        position: absolute;
        top: 15px;
        right: 20px;
        background: none;
        border: none;
        font-size: 2rem;
        cursor: pointer;
        color: #666;
        line-height: 1;
    }
    .modal-close-trigger:hover {
        color: #000;
    }

    /* Elementi del Form */
    .modal-header h3 {
        margin: 0 0 5px 0;
        color: #8a1c14;
        font-size: 1.5rem;
        text-align: left;
    }
    .modal-subtitle {
        margin: 0 0 20px 0;
        font-size: 0.95rem;
        color: #555;
    }
    .form-group {
        margin: 20px 0 20px 0;
    }
    .form-group label {
        display: block;
        font-weight: 600;
        margin-bottom: 5px;
        font-size: 0.9rem;
    }
    .form-group input {
        width: 100%;
        padding: 10px;
        border: 1px solid #ddd;
        border-radius: 4px;
        box-sizing: border-box;
        font-size: 1rem;
    }
    .form-group input:focus {
        border-color: #8a1c14;
        outline: none;
        box-shadow: 0 0 4px rgba(138, 28, 20, 0.2);
    }
    .modal-notice-box {
        background-color: #f9f9f9;
        border-left: 4px solid #8a1c14;
        padding: 12px;
        margin-bottom: 20px;
        font-size: 0.85rem;
        line-height: 1.4;
        color: #444;
    }
    .form-group-checkbox {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 25px;
    }
    .form-group-checkbox input {
        margin-top: 3px;
        cursor: pointer;
    }
    .form-group-checkbox label {
        font-size: 0.85rem;
        color: #444;
        line-height: 1.4;
        cursor: pointer;
    }
    .btn-submit-iscrizione {
        background-color: #8a1c14;
        color: white;
        width: 100%;
        padding: 12px;
        border: none;
        border-radius: 4px;
        font-size: 1.1rem;
        font-weight: bold;
        cursor: pointer;
        transition: background 0.2s ease;
    }
    .btn-submit-iscrizione:hover {
        background-color: #6b140e;
    }