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

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

    body {
        margin: 0;
        overflow-x: hidden;
    }

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

    ::selection {
        background: rgba(20, 184, 166, 0.3);
        color: #f0fdfa;
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #080e1a;
    }
    ::-webkit-scrollbar-thumb {
        background: #1e293b;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #334155;
    }

    /* Hero Animations */
    .hero-eyebrow {
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.2s;
    }
    .hero-title {
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.4s;
    }
    .hero-subtitle {
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.6s;
    }
    .hero-ctas {
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.8s;
    }

    @keyframes heroFadeUp {
        from {
            opacity: 0;
            transform: translateY(24px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Scroll Reveal — progressive enhancement, hidden by default */
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
    }

    @media (prefers-reduced-motion: no-preference) {
        .reveal-up {
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal-left {
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal-right {
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal-up.revealed,
        .reveal-left.revealed,
        .reveal-right.revealed {
            opacity: 1;
            transform: none;
        }

        .reveal-up:not(.revealed) {
            opacity: 0;
            transform: translateY(32px);
        }
        .reveal-left:not(.revealed) {
            opacity: 0;
            transform: translateX(-40px);
        }
        .reveal-right:not(.revealed) {
            opacity: 0;
            transform: translateX(40px);
        }
    }

    /* Navbar */
    #navbar {
        background: transparent;
    }
    #navbar.scrolled {
        background: rgba(8, 14, 26, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    }
    #navbar.scrolled .nav-link {
        color: #94a3b8;
    }

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

    /* Mobile link hover */
    .mobile-link {
        position: relative;
    }
    .mobile-link::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: #14b8a6;
        transition: width 0.3s ease;
    }
    .mobile-link:hover::after {
        width: 100%;
    }

    /* Card hover */
    .group:hover img {
        transform: scale(1.05);
    }

    /* Button focus */
    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
        outline: 2px solid #14b8a6;
        outline-offset: 2px;
    }

    /* Smooth image loading */
    img {
        background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    }

    /* Print */
    @media print {
        #navbar, #mobile-toggle, .reveal-up, .reveal-left, .reveal-right {
            display: none !important;
        }
        body {
            background: white;
            color: black;
        }
    }