/* === Base & Utilities === */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* === Scroll Reveal (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);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* === Navbar scroll state === */
.navbar-scrolled {
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

/* === Mobile menu transition === */
#mobile-menu {
    animation: slideDown 0.25s ease-out;
}

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

/* === Frame card hover === */
.frame-card img {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* === Custom scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #faf9f6;
}
::-webkit-scrollbar-thumb {
    background: #c8bfb4;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #a89888;
}

/* === Focus visible === */
*:focus-visible {
    outline: 2px solid #2e633e;
    outline-offset: 2px;
    border-radius: 4px;
}