/* ===== Base & Typography ===== */
    *, *::before, *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        margin: 0;
        overflow-x: hidden;
    }

    /* ===== Scroll Reveal Animations ===== */
    .reveal-up {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-left {
        opacity: 1;
        transform: translateX(0);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-right {
        opacity: 1;
        transform: translateX(0);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-grid {
        opacity: 1;
        transform: scale(1);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-card {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    /* Hidden states — applied by JS for progressive enhancement */
    .reveal-up.hidden-state,
    .reveal-left.hidden-state,
    .reveal-right.hidden-state,
    .reveal-grid.hidden-state,
    .reveal-card.hidden-state {
        opacity: 0;
    }

    .reveal-up.hidden-state {
        transform: translateY(32px);
    }

    .reveal-left.hidden-state {
        transform: translateX(-32px);
    }

    .reveal-right.hidden-state {
        transform: translateX(32px);
    }

    .reveal-grid.hidden-state {
        transform: scale(0.96);
    }

    .reveal-card.hidden-state {
        transform: translateY(24px);
    }

    /* Respect reduced motion preference */
    @media (prefers-reduced-motion: reduce) {
        .reveal-up,
        .reveal-left,
        .reveal-right,
        .reveal-grid,
        .reveal-card {
            opacity: 1 !important;
            transform: none !important;
            transition: none !important;
        }
        .reveal-up.hidden-state,
        .reveal-left.hidden-state,
        .reveal-right.hidden-state,
        .reveal-grid.hidden-state,
        .reveal-card.hidden-state {
            opacity: 1 !important;
            transform: none !important;
        }
        html {
            scroll-behavior: auto;
        }
    }

    /* ===== Navbar Scroll State ===== */
    #navbar.scrolled {
        background: rgba(255, 251, 240, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 1px 0 rgba(6, 78, 59, 0.08);
    }

    #navbar.scrolled .nav-text {
        color: #064e3b;
    }

    #navbar.scrolled .nav-link {
        color: #065f46;
    }

    #navbar.scrolled .nav-link:hover {
        color: #059669;
    }

    /* ===== Mobile Menu ===== */
    #mobile-menu {
        animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-8px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* ===== Button Focus States ===== */
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid #34d399;
        outline-offset: 2px;
        border-radius: 4px;
    }

    /* ===== Selection ===== */
    ::selection {
        background: #059669;
        color: #fffbf0;
    }

    /* ===== Custom Scrollbar ===== */
    ::-webkit-scrollbar {
        width: 8px;
    }

    ::-webkit-scrollbar-track {
        background: #fffbf0;
    }

    ::-webkit-scrollbar-thumb {
        background: #065f46;
        border-radius: 4px;
    }

    ::-webkit-scrollbar-thumb:hover {
        background: #059669;
    }