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

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

body {
    overflow-x: hidden;
}

/* Fade-up animation for hero (above the fold — always visible) */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Scroll reveal — progressive enhancement, hidden by default */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile menu transitions */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a0a0f;
}
::-webkit-scrollbar-thumb {
    background: rgba(251, 191, 36, 0.3);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(251, 191, 36, 0.5);
}

/* Selection color */
::selection {
    background: rgba(251, 191, 36, 0.3);
    color: #fbbf24;
}

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