body { font-family: 'Noto Sans KR', sans-serif; }
        .hide-scrollbar::-webkit-scrollbar { display: none; }
        .hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
        
        /* Smooth fade transitions for SPA feel */
        .page-section { display: none; animation: fadeIn 0.5s ease-in-out; }
        .page-section.active { display: block; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

        /* Lightbox styles */
        #lightbox { display: none; }
        
        /* Hero Slider Styles */
        .scrolling-wrapper {
            -webkit-overflow-scrolling: touch;
            scroll-snap-type: x mandatory;
        }
        .scrolling-card {
            scroll-snap-align: start;
        }

        /* Mobile Menu Transition */
        #mobile-menu { transition: max-height 0.3s ease-in-out; max-height: 0; overflow: hidden; }
        #mobile-menu.open { max-height: 400px; }
        
        /* Loading Overlay for Zip Generation */
        #zip-loading {
            display: none;
            position: fixed; inset: 0; background: rgba(0,0,0,0.8); z-index: 9999;
            justify-content: center; align-items: center; flex-direction: column; color: white;
        }
        .spinner {
            width: 50px; height: 50px; border: 5px solid #f3f3f3; border-top: 5px solid #3b82f6; border-radius: 50%;
            animation: spin 1s linear infinite; margin-bottom: 20px;
        }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }