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

/* ── Scroll Reveal ── */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal[data-reveal-state="hidden"] {
    opacity: 0;
    transform: translateY(32px);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ── Floating Animations ── */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}
@keyframes float-delayed {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}
@keyframes float-slow {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-16px) scale(1.05); }
}

.animate-float { animation: float 4s ease-in-out infinite; }
.animate-float-delayed { animation: float-delayed 5s ease-in-out infinite 1s; }
.animate-float-slow { animation: float-slow 6s ease-in-out infinite 0.5s; }

/* ── Navbar Transition ── */
.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #059669;
    border-radius: 1px;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
.nav-link:hover::after { width: 60%; }

/* ── Mobile Menu ── */
.mobile-link { display: block; }

/* ── Custom Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #FAF8F2; }
::-webkit-scrollbar-thumb { background: #D1D5DB; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #9CA3AF; }

/* ── Selection ── */
::selection { background: #D1FAE5; color: #064E3B; }

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

/* ── Responsive Tweaks ── */
@media (max-width: 640px) {
    .font-serif { line-height: 1.15; }
}