/* Scroll-triggered reveal animations */
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
    }

    .reveal-hidden {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
    }

    .reveal-hidden.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }

    @media (prefers-reduced-motion: no-preference) {
        .reveal-hidden {
            opacity: 0;
            transform: translateY(24px);
        }
    }

    @media (prefers-reduced-motion: reduce) {
        .reveal,
        .reveal-hidden,
        .reveal-hidden.revealed {
            opacity: 1;
            transform: none;
            transition: none;
        }
    }

    /* Navbar transition */
    .nav-scrolled header {
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(12px);
        box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
    }

    /* Smooth scroll */
    html {
        scroll-behavior: smooth;
    }

    /* Custom scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #f1f5f9;
    }
    ::-webkit-scrollbar-thumb {
        background: #94a3b8;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #64748b;
    }

    /* Mobile menu animation */
    #mobile-menu {
        max-height: 0;
        overflow: hidden;
    }
    #mobile-menu.open {
        max-height: 400px;
    }

    /* Selection color */
    ::selection {
        background: #99f6e4;
        color: #134e4a;
    }