/* ── Base & Reset ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ── Navbar ── */
#nav { background: transparent; }
#nav.scrolled { background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); box-shadow: 0 1px 20px rgba(10,22,40,0.06); }

/* ── Mobile Nav ── */
#mobile-nav.open { display: block; }
#mobile-nav .mobile-overlay { opacity: 0; transition: opacity 0.3s ease; }
#mobile-nav.open .mobile-overlay { opacity: 1; }
#mobile-nav .relative { transform: translateX(-100%); transition: transform 0.3s ease; }
#mobile-nav.open .relative { transform: translateX(0); }

/* ── Hero Stat Cards ── */
.stat-card { transform: translateY(0); transition: transform 0.25s ease, box-shadow 0.25s ease; }
.stat-card:hover { transform: translateY(-4px); }

/* ── Service Cards ── */
.service-card { transform: translateY(0); transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease; }
.service-card:hover { transform: translateY(-6px); }

/* ── Process Cards ── */
.process-card { transform: translateY(0); transition: transform 0.3s ease; }
.process-card:hover { transform: translateY(-4px); }

/* ── Testimonial Cards ── */
.testimonial-card { transform: translateY(0); transition: transform 0.3s ease, background 0.3s ease; }
.testimonial-card:hover { transform: translateY(-4px); }

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
    }
    .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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
}

/* ── Accessibility ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}

/* ── Focus Styles ── */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid #2bc4b4;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f0fdf9; }
::-webkit-scrollbar-thumb { background: #4fd1c5; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2bc4b4; }