:root {
            --navy: #1A3263;
            --grey: #EEEEEE;
            --beige: #F6F0D7;
            --teal: #4B9DA9;
        }

        body {
            font-family: 'Inter', sans-serif;
            color: var(--navy);
            background-color: #FFFFFF;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* Zalando Sans Weights */
        .zs-200 { font-weight: 200; }
        .zs-400 { font-weight: 400; }
        .zs-600 { font-weight: 600; }
        .zs-800 { font-weight: 800; }
        .zs-900 { font-weight: 900; }

        /* Animations & Interaction */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s cubic-bezier(0.2, 1, 0.3, 1);
        }
        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        .btn-teal {
            background-color: var(--teal);
            color: white;
            padding: 14px 32px;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            font-size: 11px;
            transition: all 0.4s ease;
            display: inline-block;
            border-radius: 4px;
        }
        .btn-teal:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(75, 157, 169, 0.3);
            filter: brightness(1.1);
        }

        .nav-link {
            font-weight: 700;
            font-size: 11px;
            letter-spacing: 1px;
            text-transform: uppercase;
            position: relative;
            cursor: pointer;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px; left: 0;
            width: 0; height: 2px;
            background-color: var(--teal);
            transition: width 0.3s;
        }
        .nav-link:hover::after, .nav-link.active::after { width: 100%; }

        /* Custom Scrollbar */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--grey); }
        ::-webkit-scrollbar-thumb { background: var(--navy); }

        /* Hero Animation Background */
        .animated-bg {
            background: linear-gradient(45deg, #1A3263, #254b8c);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
        }
        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Modal & Auth Styling */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(26, 50, 99, 0.95);
            z-index: 9999;
            display: none;
            overflow-y: auto;
            padding: 40px 20px;
        }
        .modal-overlay.active { display: block; }

        .auth-container {
            max-width: 450px;
            margin: 60px auto;
            background: white;
            padding: 50px;
            border-radius: 8px;
            box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }