*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Scroll reveal — progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

/* Navbar transition */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding-top: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(212, 175, 55, 0.08);
}

/* Hero entrance animations */
@media (prefers-reduced-motion: no-preference) {
    #hero-subtitle {
        animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
    }
    #hero-headline {
        animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
    }
    #hero-body {
        animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.7s both;
    }
    #hero-cta {
        animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.9s both;
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.18s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.26s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.34s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.42s; }

/* Selection */
::selection {
    background: rgba(212, 175, 55, 0.25);
    color: #F0D48A;
}

/* Focus visible */
*:focus-visible {
    outline: 2px solid #D4AF37;
    outline-offset: 4px;
    border-radius: 2px;
}

/* Image lazy loading placeholder */
img {
    background-color: rgba(30, 41, 59, 0.5);
}