/* ── Base ── */
*, *::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; }

/* ── Nav height ── */
#nav { height: 72px; }

/* ── Reveal animations (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);
    }
}

/* Fallback: always visible if JS is disabled or motion preferred */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ── Mobile menu transitions ── */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
#mobileMenu.open {
    max-height: 400px;
}

/* ── Subtle hover lift on cards ── */
.group:hover { transform: translateY(-2px); }
.group { transition: transform 0.25s ease; }

/* ── Selection color ── */
::selection { background: rgba(94, 234, 212, 0.3); color: #041a2b; }