:root {
            --primary-color: #0d6efd;
            --primary-dark: #0b5ed7;
            --dark-color: #212529;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
            --border-color: #dee2e6;
            --warning-bg: #ffc107;
            --danger-color: #dc3545;
            --success-color: #198754;
            --transition-speed: 0.2s;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            font-size: 1rem;
            line-height: 1.5;
            color: var(--dark-color);
            background-color: var(--light-color);
        }

        .container {
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        .py-5 { padding-top: 3rem; padding-bottom: 3rem; }
        .mb-3 { margin-bottom: 1rem; }
        .mb-4 { margin-bottom: 1.5rem; }
        .mb-5 { margin-bottom: 3rem; }
        .mt-3 { margin-top: 1rem; }
        .mt-4 { margin-top: 1.5rem; }

        .text-center { text-align: center; }
        .fw-bold { font-weight: bold; }
        .small { font-size: 0.875rem; }
        .text-muted { color: var(--gray-color); }
        .text-danger { color: var(--danger-color); }
        .text-success { color: var(--success-color); }
        .d-none { display: none !important; }

        .error-feedback {
            font-size: 0.8rem;
            color: var(--danger-color);
            margin-top: 0.25rem;
            display: none;
        }

        .lang-fixed-container {
            position: fixed;
            top: 0;
            right: 0;
            padding: 1rem;
            z-index: 5000;
        }
        .dropdown {
            position: relative;
            display: inline-block;
        }
        .dropdown-toggle-custom {
            background-color: rgba(0, 0, 0, 0.7);
            color: #ffffff;
            border: 1px solid #ffc107;
            padding: 0.375rem 0.75rem;
            border-radius: 0.375rem;
            cursor: pointer;
            font-weight: bold;
            font-size: 0.875rem;
            box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.2);
        }
        .dropdown-menu-custom {
            display: none;
            position: absolute;
            right: 0;
            top: calc(100% + 5px);
            background-color: #ffffff;
            min-width: 160px;
            box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
            border-radius: 0.375rem;
            padding: 0.5rem 0;
            z-index: 5001;
            border: 1px solid var(--border-color);
        }
        .dropdown.active .dropdown-menu-custom {
            display: block;
        }
        .dropdown-menu-custom a {
            display: block;
            padding: 0.5rem 1rem;
            color: #212529;
            text-decoration: none;
            font-size: 0.875rem;
        }
        .dropdown-menu-custom a:hover, .dropdown-menu-custom a.active {
            background-color: var(--light-color);
            font-weight: bold;
        }

        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 3000;
            justify-content: center;
            align-items: center;
            padding: 1rem;
        }
        .modal-overlay.active {
            display: flex;
        }
        .modal-dialog {
            background-color: #fff;
            width: 100%;
            max-width: 700px;
            border-radius: 0.5rem;
            box-shadow: 0 1rem 3rem rgba(0,0,0,0.175);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            max-height: 90vh;
        }
        .modal-header {
            background-color: var(--dark-color);
            color: #fff;
            padding: 1rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .modal-header.bg-info {
            background-color: #0dcaf0;
            color: var(--dark-color);
        }
        .modal-header.bg-primary {
            background-color: var(--primary-color);
            color: #fff;
        }
        .modal-body {
            padding: 1.5rem;
            overflow-y: auto;
            color: var(--gray-color);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .modal-footer {
            background-color: var(--light-color);
            padding: 1rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
        }
        .btn-close {
            background: none;
            border: none;
            font-size: 1.25rem;
            cursor: pointer;
            color: inherit;
        }

        .btn {
            display: inline-block;
            font-weight: 600;
            text-align: center;
            vertical-align: middle;
            cursor: pointer;
            padding: 0.5rem 1rem;
            font-size: 1rem;
            border-radius: 0.375rem;
            border: 1px solid transparent;
            text-decoration: none;
            transition: background-color var(--transition-speed);
        }
        .btn-sm { padding: 0.25rem 0.5rem; font-size: 0.875rem; }
        .btn-lg { padding: 0.75rem 1.5rem; font-size: 1.125rem; }
        .w-100 { width: 100%; }

        .btn-primary { background-color: var(--primary-color); color: #fff; }
        .btn-primary:hover { background-color: var(--primary-dark); }
        .btn-outline-primary { background-color: transparent; border-color: var(--primary-color); color: var(--primary-color); }
        .btn-outline-primary:hover { background-color: var(--primary-color); color: #fff; }
        .btn-outline-dark { background-color: transparent; border-color: var(--dark-color); color: var(--dark-color); }
        .btn-outline-dark:hover { background-color: var(--dark-color); color: #fff; }
        .btn-outline-secondary { background-color: transparent; border-color: var(--gray-color); color: var(--gray-color); }
        .btn-outline-secondary:hover { background-color: var(--gray-color); color: #fff; }
        .btn-success { background-color: var(--success-color); color: #fff; }
        .btn-success:hover { background-color: #157347; }
        .btn-secondary { background-color: var(--gray-color); color: #fff; }
        .btn-warning { background-color: var(--warning-bg); color: var(--dark-color); }
        .btn-warning:hover { background-color: #ffca2c; }

        .card {
            background-color: #fff;
            border-radius: 0.5rem;
            box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
            border: none;
        }
        .card-body { padding: 2rem; }

        .form-label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; }
        .form-control, .form-select {
            display: block;
            width: 100%;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            line-height: 1.5;
            color: var(--dark-color);
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 0.375rem;
            outline: none;
            transition: border-color var(--transition-speed);
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }
        .form-control:disabled, .form-select:disabled {
            background-color: #e9ecef;
            opacity: 1;
            cursor: not-allowed;
        }
        .form-control.is-valid, .form-select.is-valid { border-color: var(--success-color); }
        .form-control.is-invalid, .form-select.is-invalid { border-color: var(--danger-color); }

        .input-group {
            display: flex;
            width: 100%;
        }
        .input-group .form-control {
            border-top-right-radius: 0;
            border-bottom-right-radius: 0;
            flex: 1;
        }
        .input-group .btn {
            border-top-left-radius: 0;
            border-bottom-left-radius: 0;
        }

        .row {
            display: flex;
            flex-wrap: wrap;
            margin-right: -0.5rem;
            margin-left: -0.5rem;
        }
        .col-12 { flex: 0 0 100%; max-width: 100%; padding: 0.5rem; }
        @media (min-width: 768px) {
            .col-md-3 { flex: 0 0 25%; max-width: 25%; }
            .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
            .col-md-6 { flex: 0 0 50%; max-width: 50%; }
            .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
            .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
        }
        .justify-content-center { justify-content: center; }
        .g-3 { gap: 0; }

        .table {
            width: 100%;
            margin-bottom: 1rem;
            color: var(--dark-color);
            border-collapse: collapse;
        }
        .table th, .table td {
            padding: 0.75rem;
            vertical-align: middle;
            border-top: 1px solid var(--border-color);
        }
        .table-bordered th, .table-bordered td { border: 1px solid var(--border-color); }
        .table-striped tbody tr:nth-of-type(odd) { background-color: rgba(0,0,0,0.02); }

        .alert {
            position: relative;
            padding: 1rem 1rem;
            margin-bottom: 1rem;
            border: 1px solid transparent;
            border-radius: 0.375rem;
        }
        .alert-warning { color: #664d03; background-color: #fff3cd; border-color: #ffecb5; }
        .alert-success { color: #0f5132; background-color: #d1e7dd; border-color: #badbcc; }
        .alert-danger { color: #842029; background-color: #f8d7da; border-color: #f5c2c7; }

        .progress {
            display: flex;
            height: 6px;
            overflow: hidden;
            background-color: #e9ecef;
            border-radius: 0.375rem;
            margin-top: 0.5rem;
        }
        .progress-bar {
            display: flex;
            flex-direction: column;
            justify-content: center;
            color: #fff;
            text-align: center;
            white-space: nowrap;
            transition: width 0.6s ease;
        }
        .bg-danger { background-color: var(--danger-color); }
        .bg-warning { background-color: var(--warning-bg); }
        .bg-success { background-color: var(--success-color); }
        .bg-secondary { background-color: var(--gray-color); }

        .form-check { display: flex; align-items: center; gap: 0.5rem; }
        .form-check-input { width: 1.125rem; height: 1.125rem; cursor: pointer; }

        /* -------------------------------------------------- */
        /* STILI AGGIUNTIVI SPECIFICI PER MODALI DI SCADENZA  */
        /* -------------------------------------------------- */

        .modal-dialog.modal-scadenza {
            max-width: 480px;
            text-align: center;
            border: 2px solid var(--warning-bg);
        }

        .modal-scadenza-icona {
            font-size: 3rem;
            margin-bottom: 1rem;
            animation: pulse-icon 1.5s infinite;
        }

        @keyframes pulse-icon {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }

        .modal-scadenza-titolo {
            font-weight: bold;
            color: var(--dark-color);
            margin-bottom: 0.75rem;
            font-size: 1.25rem;
        }

        .modal-scadenza-testo {
            color: var(--gray-color);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .modal-scadenza-testo strong {
            color: var(--danger-color);
        }