/* Header e Navigation */
        .header {
            background: linear-gradient(135deg, #ffffff 25%, #f5f5f5 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100px;
        }
        .nav-container ul {list-style: none;}

        /* Logo */
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        /* .logo img {
            width: 50px;
            height: 50px;
            border-radius: 8px;
            margin-right: 12px;
            background: white;
            padding: 8px;
        } */

        .logo-text {
            color: white;
            font-size: 24px;
            font-weight: bold;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }

        /* Navigation Menu */
        .nav-menu {
            display: flex;
            list-style: none;
            align-items: center;
            gap: 1rem;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            color: #215573;
            text-decoration: none;
            padding: 12px 20px;
            display: block;
            /* font-weight: 500; */
            transition: all 0.3s ease;
            border-radius: 6px;
            position: relative;
        }

        .nav-link:hover,
        .nav-link:focus {
            /* background-color: rgba(255,255,255,0.2); */
            /* background-color: rgba(240, 109, 38); */
            /* background-color: rgba(33, 85, 115, 1); */
            
             /* background-color: #667eea; */
            /* color: #fff; */
            /* transform: translateY(-2px); */
            /* outline: 2px solid rgba(255,255,255,0.5); */
            outline: 2px solid rgba(240, 109, 38, 0.5);
            outline-offset: 2px;
        }

        /* Dropdown Menu */
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            min-width: 250px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            border-radius: 8px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .nav-item:hover .dropdown,
        .nav-item:focus-within .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-link {
            color: #333;
            text-decoration: none;
            padding: 12px 20px;
            display: block;
            transition: all 0.3s ease;
            border-radius: 6px;
            margin: 4px;
        }

        .dropdown-link:hover,
        .dropdown-link:focus {
            /* background-color: #667eea; */
            background-color: rgba(240, 109, 38);
            color: white;
            /* transform: translateX(5px); */
            /* outline: 2px solid #667eea; */
            outline: 2px solid rgba(33, 85, 115, 1);
            outline-offset: 2px;
        }

        /* Mobile Menu Toggle */
        .mobile-toggle {
            display: none;
            /* background: none; */
            background-color: rgba(240,109,38, 1);
            border: none;
            /* color: white; */
            color: #215573;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: all 0.3s ease;
        }

        .mobile-toggle:hover,
        .mobile-toggle:focus {
            /* background-color: rgba(255,255,255,0.2); */
            background-color: rgba(33,85,115, 1);
            outline: 2px solid rgba(240,109,38,1);
            outline-offset: 2px;
        }

        .nav-item.has-dropdown > .nav-link::after {
                content: ' ▼';
                font-size: 12px;
                transition: transform 0.3s ease;
            }

            .nav-item.has-dropdown.dropdown-open > .nav-link::after {
                transform: rotate(180deg);
            }

        /* Mobile Styles */
        @media (max-width: 897px) {
            .mobile-toggle {
                display: block;
            }

            .nav-menu {
                position: fixed;
                top: 100px;
                left: 0;
                width: 100%;
                height: calc(100vh - 100px);
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                flex-direction: column;
                justify-content: flex-start;
                align-items: stretch;
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
                overflow-y: auto;
                gap: 0;
            }

            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
                animation: slideDown 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            }

            @keyframes slideDown {
                0% {
                    transform: translateY(-100%);
                    opacity: 0;
                }
                100% {
                    transform: translateY(0);
                    opacity: 1;
                }
            }

            .nav-item {
                width: 100%;
                margin-bottom: 10px;
            }

            .nav-link {
                padding: 15px 20px;
                font-size: 1rem;
                border-radius: 8px;
                /* background-color: rgba(255,255,255,0.1); */
                background-color: #fff;
                /* background: linear-gradient(135deg, #ffffff 25%, #f5f5f5 100%); */
                margin-bottom: 8px;
            }

            .dropdown {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: rgba(255,255,255,0.1);
                border-radius: 8px;
                margin-top: 8px;
                max-height: 0;
                overflow: hidden;
                transition: all 0.3s ease;
            }

            .nav-item:hover .dropdown,
            .nav-item.dropdown-open .dropdown {
                max-height: 300px;
                padding: 10px 0;
            }

            .dropdown-link {
                color: white;
                padding: 12px 30px;
                font-size: 0.75rem;
            }

            .dropdown-link:hover,
            .dropdown-link:focus {
                background-color: rgba(255,255,255,0.2);
                color: white;
                transform: translateX(10px);
            }

            /* Mobile dropdown toggle */
            .nav-item.has-dropdown > .nav-link::after {
                content: ' ▼';
                font-size: 12px;
                transition: transform 0.3s ease;
            }

            .nav-item.has-dropdown.dropdown-open > .nav-link::after {
                transform: rotate(180deg);
            }
        }

        /* Content Demo */
        .content {
            padding: 40px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        
        /* Skip Link per accessibilità */
        .skip-link {
            position: absolute;
            top: -40px;
            right: 6px;
            background: #B30000;
            color: #fff;
            padding: 8px;
            text-decoration: none;
            border-radius: 4px;
            z-index: 1001;
        }

        .skip-link:focus {
            top: 6px;
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        /* Icone hamburger personalizzate */
        .hamburger {
            width: 25px;
            height: 20px;
            position: relative;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 100%;
            height: 3px;
            background: white;
            /* background: #215573; */
            /* color: #215573; */
            margin: 4px 0;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }