/* Base & utilities */
html {
    scroll-behavior: smooth;
}

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

/* Scroll reveal — progressive enhancement, hidden by default */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(9, 9, 11, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-scrolled a,
.nav-scrolled button {
    color: rgba(255, 255, 255, 0.9) !important;
}

/* Mobile menu animation */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f4f4f5;
}

::-webkit-scrollbar-thumb {
    background: #ff8a4d;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e8521a;
}

/* Selection color */
::selection {
    background: #ff6b35;
    color: white;
}