*, *::before, *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        scroll-padding-top: 80px;
    }

    body {
        overflow-x: hidden;
    }

    /* ── Navbar ── */
    #navbar {
        transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
    }

    #navbar.scrolled {
        background: rgba(253, 252, 248, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 1px 20px rgba(5, 150, 105, 0.08);
    }

    /* ── Mobile Menu ── */
    #mobileMenu.open {
        opacity: 1;
        pointer-events: all;
    }

    #mobileMenu.closed {
        opacity: 0;
        pointer-events: none;
    }

    .mobile-link {
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

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

    .reveal.animate-in {
        opacity: 1;
        transform: translateY(0);
    }

    /* Reduced motion */
    @media (prefers-reduced-motion: reduce) {
        .reveal {
            opacity: 1;
            transform: none;
            transition: none;
        }
        html {
            scroll-behavior: auto;
        }
        .reveal.animate-in {
            opacity: 1;
            transform: none;
        }
    }

    /* ── Decorative Blobs ── */
    .blob {
        position: absolute;
        border-radius: 50%;
        filter: blur(80px);
        opacity: 0.4;
        pointer-events: none;
        animation: float 8s ease-in-out infinite;
    }

    @keyframes float {
        0%, 100% { transform: translate(0, 0) scale(1); }
        33% { transform: translate(30px, -20px) scale(1.05); }
        66% { transform: translate(-20px, 20px) scale(0.95); }
    }

    /* ── Form Focus States ── */
    input:focus, textarea:focus {
        outline: none;
    }

    /* ── Selection ── */
    ::selection {
        background: rgba(16, 185, 129, 0.2);
        color: #064E3B;
    }

    /* ── Scrollbar ── */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #FAF8F2;
    }
    ::-webkit-scrollbar-thumb {
        background: #A7F3D0;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #34D399;
    }