/* ─── Base & Reset ─── */
    *, *::before, *::after {
        box-sizing: border-box;
    }

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

    body {
        margin: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    img {
        display: block;
        max-width: 100%;
    }

    ::selection {
        background: rgba(95, 184, 168, 0.25);
        color: #0B1F3A;
    }

    /* ─── Scroll Reveal ─── */
    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                        transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .reveal.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; }
    }

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

    @keyframes slideDown {
        from {
            opacity: 0;
            max-height: 0;
        }
        to {
            opacity: 1;
            max-height: 500px;
        }
    }

    /* ─── Scrollbar ─── */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #0B1F3A;
    }
    ::-webkit-scrollbar-thumb {
        background: #2E7569;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #5FB8A8;
    }

    /* ─── Focus Styles ─── */
    a:focus-visible, button:focus-visible {
        outline: 2px solid #5FB8A8;
        outline-offset: 2px;
        border-radius: 2px;
    }

    /* ─── Print ─── */
    @media print {
        header, #hero, #facility, .reveal { display: none; }
        body { color: #000; background: #fff; }
    }