/* ─── Reset & Base ─── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
    body { min-height: 100vh; }
    img { max-width: 100%; display: block; }
    select option { background: #18181f; }

    /* ─── Header ─── */
    #site-header {
        background: transparent;
        transition: background 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
    }
    #site-header.scrolled {
        background: rgba(13, 13, 18, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        box-shadow: 0 1px 0 rgba(255,255,255,0.04);
    }

    /* ─── Nav Links ─── */
    .nav-link { position: relative; }
    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1px;
        background: #c15b40;
        transition: width 0.3s ease;
    }
    .nav-link:hover::after { width: 100%; }

    /* ─── Mobile Menu ─── */
    #mobile-menu.open { opacity: 1 !important; pointer-events: all !important; }
    #mobile-menu.open .mobile-nav-link { animation: fadeUp 0.4s ease forwards; opacity: 0; }
    #mobile-menu.open .mobile-nav-link:nth-child(1) { animation-delay: 0.05s; }
    #mobile-menu.open .mobile-nav-link:nth-child(2) { animation-delay: 0.1s; }
    #mobile-menu.open .mobile-nav-link:nth-child(3) { animation-delay: 0.15s; }
    #mobile-menu.open .mobile-nav-link:nth-child(4) { animation-delay: 0.2s; }
    #mobile-menu.open .mobile-nav-link:nth-child(6) { animation-delay: 0.25s; }

    @keyframes fadeUp {
        from { opacity: 0; transform: translateY(12px); }
        to { opacity: 1; transform: translateY(0); }
    }

    /* ─── Hamburger ─── */
    #menu-toggle.active .menu-line:nth-child(1) { transform: translateY(5px) rotate(45deg); }
    #menu-toggle.active .menu-line:nth-child(2) { opacity: 0; }
    #menu-toggle.active .menu-line:nth-child(3) { transform: translateY(-5px) rotate(-45deg); width: 24px; }

    /* ─── Hero ─── */
    .hero-bg { transition: transform 8s ease; }
    #hero:hover .hero-bg { transform: scale(1.03); }
    .scroll-line { animation: scrollPulse 2s ease-in-out infinite; }
    @keyframes scrollPulse {
        0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
        50% { opacity: 1; transform: scaleY(1); }
    }

    /* ─── Reveal Animations ─── */
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }

    /* ─── Hero Entrance ─── */
    .hero-eyebrow { transition: opacity 0.8s ease 0.2s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s; }
    .hero-title { transition: opacity 0.8s ease 0.35s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.35s; }
    .hero-subtitle { transition: opacity 0.8s ease 0.5s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s; }
    .hero-cta { transition: opacity 0.8s ease 0.65s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.65s; }
    #hero.loaded .hero-eyebrow { opacity: 1; transform: translateY(0); }
    #hero.loaded .hero-title { opacity: 1; transform: translateY(0); }
    #hero.loaded .hero-subtitle { opacity: 1; transform: translateY(0); }
    #hero.loaded .hero-cta { opacity: 1; transform: translateY(0); }

    /* ─── Service Cards ─── */
    .service-card { position: relative; overflow: hidden; }
    .service-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0;
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg, transparent, #c15b40, transparent);
        opacity: 0;
        transition: opacity 0.5s ease;
    }
    .service-card:hover::before { opacity: 1; }

    /* ─── Why Cards ─── */
    .why-card { position: relative; overflow: hidden; }
    .why-card::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0;
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg, transparent, #c15b40, transparent);
        opacity: 0;
        transition: opacity 0.5s ease;
    }
    .why-card:hover::after { opacity: 1; }

    /* ─── Form ─── */
    input:focus, textarea:focus, select:focus {
        border-color: rgba(193, 91, 64, 0.5) !important;
        box-shadow: 0 0 0 1px rgba(193, 91, 64, 0.15);
    }

    /* ─── Selection ─── */
    ::selection { background: rgba(193, 91, 64, 0.3); color: #f6f6f7; }

    /* ─── Scrollbar ─── */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: #0d0d12; }
    ::-webkit-scrollbar-thumb { background: #33333d; border-radius: 3px; }
    ::-webkit-scrollbar-thumb:hover { background: #c15b40; }

    /* ─── Responsive ─── */
    @media (max-width: 767px) {
        .hero-title { font-size: 2.5rem; }
        @supports (font-size: clamp(2rem, 8vw, 3.5rem)) {
            .hero-title { font-size: clamp(2rem, 8vw, 3.5rem); }
        }
    }