*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { font-family: 'Inter', system-ui, sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden; }

/* ── NAV ── */
.nav-link { position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 2px; background: #3dd9b0; border-radius: 1px; transform: translateX(-50%); transition: width 0.2s ease; }
.nav-link:hover::after { width: 60%; }

/* ── MOBILE MENU ── */
#mobile-menu { animation: slideDown 0.25s ease; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

/* ── FLOATING CARDS ── */
@keyframes float { 0%, 100% { transform: translateY(0px); } 50% { transform: translateY(-10px); } }
@keyframes floatDelayed { 0%, 100% { transform: translateY(0px); } 50% { transform: translateY(-8px); } }
.animate-float { animation: float 3.5s ease-in-out infinite; }
.animate-float-delayed { animation: floatDelayed 4s ease-in-out 0.8s infinite; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 1; transform: translateY(0); transition: opacity 0.6s ease, transform 0.6s ease; }
@media (prefers-reduced-motion: no-preference) {
    .reveal { opacity: 0; transform: translateY(28px); }
    .reveal.revealed { opacity: 1; transform: translateY(0); }
}

/* ── SERVICE CARDS ── */
.service-card { position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #3dd9b0, #1fb88e); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
.service-card:hover::before { transform: scaleX(1); }

/* ── FORM ── */
select option { background: #0f2b46; color: #fff; }

/* ── FOCUS STYLES ── */
:focus-visible { outline: 2px solid #3dd9b0; outline-offset: 2px; }

/* ── CUSTOM SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0f2b46; }
::-webkit-scrollbar-thumb { background: #1fb88e; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3dd9b0; }