/* navbar */
        .navbar {
            position: sticky;
            top: 0;
            background: rgba(5, 5, 12, 0.85);
            backdrop-filter: blur(16px);
            z-index: 1000;
            border-bottom: 1px solid rgba(108, 99, 255, 0.25);
            padding: 1rem 0;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .nav-flex {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(130deg, #FFFFFF, #BFA6FF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .logo span {
            background: linear-gradient(135deg, #6C63FF, #B86EFF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .nav-links {
            display: flex;
            gap: 2.2rem;
            align-items: center;
        }

        .nav-links a {
            font-weight: 500;
            transition: 0.2s;
            text-decoration: none;
            color: inherit;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #6C63FF;
        }

        .mobile-menu {
            display: none;
            font-size: 1.6rem;
            cursor: pointer;
        }

        @media (max-width: 800px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 75%;
                height: calc(100vh - 70px);
                background: rgba(8, 8, 18, 0.98);
                backdrop-filter: blur(24px);
                flex-direction: column;
                justify-content: center;
                gap: 2rem;
                transition: 0.35s ease;
                z-index: 999;
                border-right: 1px solid #6C63FF40;
            }

            .nav-links.active {
                left: 0;
            }

            .mobile-menu {
                display: block;
            }
        }