body { font-family: 'Inter', sans-serif; background: #fafafa; scroll-behavior: smooth; }
        .splash-out { opacity: 0; transition: opacity 0.8s ease-out; pointer-events: none; visibility: hidden; }
        #pre-header { transition: transform 0.3s ease, opacity 0.3s ease; height: 40px; background: black; position: relative; z-index: 60; }
        .nav-scrolled #pre-header { transform: translateY(-100%); opacity: 0; pointer-events: none; }
        .nav-scrolled #main-nav { transform: translateY(-40px); }
        .language-dropdown { position: absolute; top: 100%; left: 0; margin-top: 8px; background: white; color: black; padding: 1rem; border-radius: 1rem; box-shadow: 0 20px 40px -10px rgba(0,0,0,0.2); min-width: 140px; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.2s ease; z-index: 70; }
        .language-trigger:hover .language-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
        .glass-nav { background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.05); position: relative; z-index: 50; }
        .product-card { transition: all 0.3s ease; }
        .product-card:hover { transform: translateY(-4px); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15); }
        .feature-card { transition: all 0.3s ease; background: white; border: 1px solid #f1f5f9; }
        .feature-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -10px rgba(0,0,0,0.05); }
        #back-to-top { opacity: 0; visibility: hidden; transition: all 0.4s ease; position: fixed; bottom: 30px; right: 30px; z-index: 50; background: white; width: 56px; height: 56px; border-radius: 50%; box-shadow: 0 10px 30px -10px rgba(0,0,0,0.2); display: flex; align-items: center; justify-content: center; cursor: pointer; border: 1px solid rgba(0,0,0,0.05); }
        #back-to-top.show { opacity: 1; visibility: visible; }
        #back-to-top:hover { background: black; color: white; transform: translateY(-5px); }
        .modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); z-index: 100; display: none; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s ease; }
        .modal-overlay.active { display: flex; opacity: 1; }
        .modal-content { width: 100%; max-width: 420px; margin: 1rem; transform: scale(0.95) translateY(20px); opacity: 0; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
        .modal-overlay.active .modal-content { transform: scale(1) translateY(0); opacity: 1; }
        .modal-glass { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.8); border-radius: 2.5rem; padding: 2rem; box-shadow: 0 40px 100px -20px rgba(0,0,0,0.2); position: relative; }
        .modal-close { position: absolute; top: 1rem; right: 1rem; width: 2.5rem; height: 2.5rem; background: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease; border: 1px solid rgba(0,0,0,0.05); }
        .modal-close:hover { background: black; color: white; transform: scale(1.1); }
        .tab-slider { transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
        .tab-btn { transition: color 0.3s ease; }
        .input-field { border-bottom: 2px solid #e2e8f0; transition: all 0.2s ease; width: 100%; padding: 0.75rem 0; background: transparent; font-size: 1rem; font-weight: 500; }
        .input-field:focus { border-bottom-color: #000; outline: none; }
        .input-field::placeholder { color: #e2e8f0; }
        .hidden-element { display: none !important; }
        .blob { position: absolute; border-radius: 50%; filter: blur(80px); z-index: -1; opacity: 0.4; }
        .right-sidebar { position: fixed; top: 0; right: 0; width: 100%; max-width: 400px; height: 100vh; background: white; z-index: 200; transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); box-shadow: -10px 0 30px -10px rgba(0,0,0,0.1); display: flex; flex-direction: column; }
        .right-sidebar.active { transform: translateX(0); }
        .sidebar-header { padding: 1.5rem; border-bottom: 1px solid #f1f5f9; display: flex; justify-content: space-between; align-items: center; }
        .sidebar-content { flex: 1; overflow-y: auto; padding: 1.5rem; }
        .sidebar-footer { padding: 1.5rem; border-top: 1px solid #f1f5f9; }
        .sidebar-close { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease; }
        .sidebar-close:hover { background: #f1f5f9; }
        .cart-item, .wishlist-item { display: flex; gap: 1rem; padding: 1rem; border-radius: 1rem; transition: all 0.2s ease; }
        .cart-item:hover, .wishlist-item:hover { background: #f8fafc; }
        .user-menu-trigger { cursor: pointer; transition: all 0.2s ease; }
        .user-menu-trigger:hover { opacity: 0.8; }
        .user-dropdown { position: absolute; top: 100%; right: 0; margin-top: 8px; background: white; border-radius: 1rem; box-shadow: 0 20px 40px -10px rgba(0,0,0,0.2); min-width: 200px; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.2s ease; z-index: 100; }
        .user-dropdown.active { opacity: 1; visibility: visible; transform: translateY(0); }
        .dropdown-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; transition: all 0.2s ease; }
        .dropdown-item:hover { background: #f1f5f9; }
        .dropdown-item:first-child { border-top-left-radius: 1rem; border-top-right-radius: 1rem; }
        .dropdown-item:last-child { border-bottom-left-radius: 1rem; border-bottom-right-radius: 1rem; }
        .blur-main { filter: blur(4px); transition: filter 0.3s ease; pointer-events: none; user-select: none; }
        .mega-menu { opacity: 0; transform: translateY(-10px); pointer-events: none; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); visibility: hidden; position: fixed; left: 0; right: 0; width: 100vw; top: 80px; z-index: 45; }
        .mega-menu.active { opacity: 1; transform: translateY(0); pointer-events: auto; visibility: visible; }
        .cat-item { transition: all 0.2s ease; padding: 0.5rem; border-radius: 0.75rem; }
        .cat-item:hover { background: #f8fafc; }