/* ─── Reset & Base ─── */
    *, *::before, *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

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

    body {
        overflow-x: hidden;
    }

    ::selection {
        background: rgba(13, 148, 136, 0.2);
        color: inherit;
    }

    /* ─── Scroll Reveal ─── */
    .scroll-reveal {
        opacity: 1;
        transform: translateY(0);
        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);
    }

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

    /* ─── Hero Animations ─── */
    .hero-subtitle {
        animation: fadeUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s forwards;
        opacity: 0;
    }

    .hero-title {
        animation: fadeUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.5s forwards;
        opacity: 0;
    }

    .hero-desc {
        animation: fadeUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.7s forwards;
        opacity: 0;
    }

    .hero-cta {
        animation: fadeUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.9s forwards;
        opacity: 0;
    }

    @keyframes fadeUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* ─── Navbar ─── */
    #navbar {
        background: transparent;
    }

    #navbar.scrolled {
        background: rgba(255, 255, 255, 0.95);
        backdrop-blur-md;
        box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
    }

    #navbar.scrolled .nav-text {
        color: #1e293b;
    }

    .nav-link {
        position: relative;
    }

    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1px;
        background: #0d9488;
        transition: width 0.3s ease;
    }

    .nav-link:hover::after {
        width: 100%;
    }

    /* ─── Mobile Menu ─── */
    #mobileMenu.open {
        opacity: 1;
        pointer-events: all;
    }

    #mobileMenu.closed {
        opacity: 0;
        pointer-events: none;
    }

    .mobile-link {
        opacity: 1;
    }

    /* ─── Image Hover Effects ─── */
    .group img {
        will-change: transform;
    }

    /* ─── Focus Styles ─── */
    input:focus,
    textarea:focus {
        outline: none;
    }

    /* ─── Reduced Motion ─── */
    @media (prefers-reduced-motion: reduce) {
        html {
            scroll-behavior: auto;
        }

        .hero-subtitle,
        .hero-title,
        .hero-desc,
        .hero-cta {
            animation: none;
            opacity: 1;
        }

        .scroll-reveal {
            opacity: 1;
            transform: none;
        }

        .group img {
            transition: none;
        }
    }

    /* ─── Custom Scrollbar ─── */
    ::-webkit-scrollbar {
        width: 8px;
    }

    ::-webkit-scrollbar-track {
        background: #f8fafc;
    }

    ::-webkit-scrollbar-thumb {
        background: #cbd5e1;
        border-radius: 4px;
    }

    ::-webkit-scrollbar-thumb:hover {
        background: #94a3b8;
    }

    /* ─── Form Input Transitions ─── */
    input,
    textarea {
        transition: border-color 0.3s ease;
    }

    /* ─── Button Press Effect ─── */
    button:active {
        transform: scale(0.98);
    }

    /* ─── Mobile Menu Bar Animation ─── */
    #menuBtn.active #bar1 {
        transform: translateY(5px) rotate(45deg);
    }

    #menuBtn.active #bar2 {
        opacity: 0;
        transform: scaleX(0);
    }

    #menuBtn.active #bar3 {
        transform: translateY(-5px) rotate(-45deg);
        width: 1.5rem;
    }