/* 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) {
    .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);
    }
}

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(10, 21, 40, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(212, 168, 67, 0.12);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Selection color */
::selection {
    background: rgba(212, 168, 67, 0.3);
    color: #f0f3f9;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a1528;
}
::-webkit-scrollbar-thumb {
    background: #1e3460;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2e4a82;
}

/* Mobile menu transition */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
#mobile-menu.open {
    max-height: 400px;
}