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

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

body {
    min-height: 100vh;
}

/* Scroll reveal base — visible by default for progressive enhancement */
.reveal {
    opacity: 1;
    transform: translateY(0);
    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);
}

/* Staggered delays for grid items */
.reveal:nth-child(1) { transition-delay: 0.05s; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.15s; }
.reveal:nth-child(4) { transition-delay: 0.2s; }
.reveal:nth-child(5) { transition-delay: 0.25s; }
.reveal:nth-child(6) { transition-delay: 0.3s; }

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

/* Mobile menu transitions */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

#mobile-menu.open {
    max-height: 400px;
    padding-bottom: 0.5rem;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0fdf9;
}
::-webkit-scrollbar-thumb {
    background: #a8b8c8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #7c94aa;
}

/* Selection color */
::selection {
    background: #bdf0d8;
    color: #0c1740;
}

/* Focus visible styles */
:focus-visible {
    outline: 2px solid #28b87a;
    outline-offset: 2px;
}

/* Input autofill override */
input:-webkit-autofill,
textarea:-webkit-autofill,
select:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 30px #f5fdf9 inset !important;
    -webkit-text-fill-color: #1e3340 !important;
}

/* Print styles */
@media print {
    header, footer, .animate-bounce { display: none; }
    body { color: #000; background: #fff; }
    a { color: #000; }
}