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

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

    body {
        overflow-x: hidden;
    }

    ::selection {
        background: rgba(79, 188, 148, 0.3);
        color: #fff;
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #050D1A;
    }
    ::-webkit-scrollbar-thumb {
        background: #1B3560;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #244478;
    }

    /* Reveal Animations (progressive enhancement) */
    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .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; }
    }

    /* Reduced motion - ensure content is always visible */
    @media (prefers-reduced-motion: reduce) {
        .reveal {
            opacity: 1;
            transform: none;
            transition: none;
        }
        html {
            scroll-behavior: auto;
        }
    }

    /* Floating card animations */
    @media (prefers-reduced-motion: no-preference) {
        .float-1 {
            animation: float1 6s ease-in-out infinite;
        }
        .float-2 {
            animation: float2 7s ease-in-out infinite;
        }
        .float-3 {
            animation: float3 5s ease-in-out infinite;
        }
        .float-4 {
            animation: float4 8s ease-in-out infinite;
        }
    }

    @keyframes float1 {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-12px); }
    }
    @keyframes float2 {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-8px); }
    }
    @keyframes float3 {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-15px); }
    }
    @keyframes float4 {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-10px); }
    }

    /* Navbar glass effect */
    .navbar-scrolled {
        background: rgba(5, 13, 26, 0.92) !important;
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    }

    /* Button shine effect */
    .btn-shine {
        position: relative;
        overflow: hidden;
    }
    .btn-shine::after {
        content: '';
        position: absolute;
        top: -50%;
        left: -60%;
        width: 40%;
        height: 200%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
        transform: skewX(-20deg);
        transition: left 0.6s ease;
    }
    .btn-shine:hover::after {
        left: 120%;
    }

    /* Gradient text utility */
    .gradient-text {
        background: linear-gradient(135deg, #4FBC94 0%, #7DD5B3 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }