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

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

    body {
        overflow-x: hidden;
    }

    /* Hero stat card float animation */
    @keyframes float {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-10px); }
    }

    .stat-card {
        animation: float 4s ease-in-out infinite;
    }

    .stat-card:nth-child(2) {
        animation-delay: -1.3s;
        animation-duration: 4.5s;
    }

    .stat-card:nth-child(3) {
        animation-delay: -2.6s;
        animation-duration: 3.8s;
    }

    /* Reveal animations — progressive enhancement */
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(30px);
        }

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

    /* Mobile menu */
    .mobile-link {
        opacity: 0;
        transform: translateY(10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    #mobile-menu.open .mobile-link {
        opacity: 1;
        transform: translateY(0);
    }

    #mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
    #mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
    #mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
    #mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

    /* Hamburger animation */
    #menu-toggle.active .menu-line:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    #menu-toggle.active .menu-line:nth-child(2) {
        opacity: 0;
    }

    #menu-toggle.active .menu-line:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
        width: 1.25rem;
    }

    /* Navbar scroll state */
    #navbar.scrolled {
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(12px);
        box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
    }

    #navbar.scrolled .font-serif.font-bold {
        color: #0f172a;
    }

    /* Selection color */
    ::selection {
        background-color: #0d9488;
        color: white;
    }

    /* 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;
    }