*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Scroll Reveal ── */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: none;
    }
    .reveal.delay-1 { transition-delay: 0.1s; }
    .reveal.delay-2 { transition-delay: 0.2s; }
    .reveal.delay-3 { transition-delay: 0.3s; }
}

/* ── Floating Cards ── */
@media (prefers-reduced-motion: no-preference) {
    .floating-card {
        animation: float 4s ease-in-out infinite;
    }
    .animate-float-delayed {
        animation-delay: 1.3s;
    }
    .animate-float-delayed2 {
        animation-delay: 2.6s;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ── Navbar ── */
#site-header.scrolled {
    background: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(6, 95, 70, 0.08), 0 4px 20px rgba(6, 95, 70, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #059669;
    border-radius: 1px;
    transition: width 0.25s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* ── Mobile Menu ── */
#mobile-menu {
    animation: slideDown 0.25s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-link {
    display: block;
}

/* ── Back to Top ── */
#back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

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

/* ── Selection ── */
::selection {
    background: #a7f3d0;
    color: #064e3b;
}

/* ── Smooth Image Loading ── */
img {
    image-rendering: auto;
}

/* ── Print ── */
@media print {
    #site-header, #back-to-top, .floating-card { display: none; }
    body { background: white; }
    section { page-break-inside: avoid; }
}