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

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

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal base — content is visible by default, JS adds animated state */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
    }

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

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(10, 15, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 168, 83, 0.08);
}

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

#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hamburger animation */
#mobile-menu.open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#mobile-menu.open .menu-line:nth-child(2) {
    opacity: 0;
}
#mobile-menu.open .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Selection color */
::selection {
    background: rgba(212, 168, 83, 0.3);
    color: #f1f5f9;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a0f1a;
}
::-webkit-scrollbar-thumb {
    background: #1e2d3d;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #d4a853;
}

/* Focus visible */
:focus-visible {
    outline: 2px solid rgba(212, 168, 83, 0.6);
    outline-offset: 2px;
}

/* Image placeholder fallback */
img {
    image-rendering: -webkit-optimize-contrast;
}