/* ========== BASE & RESET ========== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; scroll-padding-top: 80px; }
    body { min-height: 100vh; }
    img { max-width: 100%; height: auto; display: block; }
    select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 40px; }

    /* ========== NAVBAR ========== */
    .nav-link { position: relative; }
    .nav-link::after { content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 2px; background: #0d9488; transform: translateX(-50%); transition: width 0.2s ease; }
    .nav-link:hover::after { width: 60%; }

    /* ========== HERO ========== */
    @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
    .hero-float { animation: float 4s ease-in-out infinite; }

    /* ========== SCROLL ANIMATIONS ========== */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
    .reveal.visible { 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; }
    .reveal-delay-4 { transition-delay: 0.4s; }

    /* ========== SERVICES GRID ========== */
    .service-card { position: relative; overflow: hidden; }
    .service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #0d9488, #14b8a6); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
    .service-card:hover::before { transform: scaleX(1); }

    /* ========== MOBILE MENU ========== */
    #mobile-menu { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
    #mobile-menu.open { max-height: 500px; padding-bottom: 1rem; }

    /* ========== BUTTONS ========== */
    a, button { transition: all 0.2s ease; }

    /* ========== FORM ========== */
    input:focus, select:focus, textarea:focus { box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1); }

    /* ========== RESPONSIVE ========== */
    @media (max-width: 767px) {
        html { scroll-padding-top: 70px; }
        h1, .font-display.text-5xl { font-size: 2.5rem !important; }
        .font-display.text-4xl { font-size: 2rem !important; }
    }

    @media (min-width: 768px) and (max-width: 1023px) {
        html { scroll-padding-top: 80px; }
    }