*, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

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

    body {
        overflow-x: hidden;
    }

    ::selection {
        background: rgba(125, 223, 198, 0.2);
        color: #f0f3f9;
    }

    /* Scroll reveal — progressive enhancement, only active with JS */
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    @media (prefers-reduced-motion: no-preference) {
        .scroll-reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }
        .scroll-reveal:not(.revealed) {
            opacity: 0;
            transform: translateY(24px);
        }
    }

    /* Hero animations — above the fold, always visible by default */
    .hero-eyebrow {
        animation: fadeDown 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
    }
    .hero-title {
        animation: fadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both;
    }
    .hero-subtitle {
        animation: fadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.6s both;
    }
    .hero-cta {
        animation: fadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.8s both;
    }
    .hero-gradient-orb {
        animation: orbFloat1 8s ease-in-out infinite;
    }
    .hero-gradient-orb2 {
        animation: orbFloat2 10s ease-in-out infinite;
    }

    @keyframes fadeDown {
        from { opacity: 0; transform: translateY(-16px); }
        to { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeUp {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }
    @keyframes orbFloat1 {
        0%, 100% { transform: translate(0, 0) scale(1); }
        50% { transform: translate(-30px, 20px) scale(1.05); }
    }
    @keyframes orbFloat2 {
        0%, 100% { transform: translate(0, 0) scale(1); }
        50% { transform: translate(20px, -30px) scale(1.08); }
    }

    /* Navbar scroll state */
    #navbar.scrolled {
        background: rgba(10, 22, 40, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
    }

    /* Menu link hover underline */
    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 1px;
        background: #7ddfc6;
        transition: width 0.3s ease;
    }
    nav a:hover::after {
        width: 100%;
    }

    /* Select styling */
    select option {
        background: #0a1628;
        color: #dce3f0;
    }

    /* Custom scrollbar */
    ::-webkit-scrollbar {
        width: 6px;
    }
    ::-webkit-scrollbar-track {
        background: #0a1628;
    }
    ::-webkit-scrollbar-thumb {
        background: rgba(125, 223, 198, 0.25);
        border-radius: 3px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: rgba(125, 223, 198, 0.4);
    }

    /* Focus visible */
    :focus-visible {
        outline: 1px solid rgba(125, 223, 198, 0.5);
        outline-offset: 2px;
    }

    /* Mobile menu transitions */
    #mobile-menu.open {
        opacity: 1;
        pointer-events: all;
    }

    /* Image hover zoom */
    img {
        transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    img:hover {
        transform: scale(1.02);
    }