/* ── Base & Utilities ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; }

/* ── Scroll Reveal (progressive enhancement) ────────────────── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-up.hidden-reveal {
        opacity: 0;
        transform: translateY(32px);
    }
    .reveal-left.hidden-reveal {
        opacity: 0;
        transform: translateX(-32px);
    }
    .reveal-right.hidden-reveal {
        opacity: 0;
        transform: translateX(32px);
    }
    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

/* ── Navbar ─────────────────────────────────────────────────── */
#main-nav.scrolled {
    background: rgba(7, 13, 31, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(201, 168, 76, 0.1);
}

/* ── Mobile Menu ────────────────────────────────────────────── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
}
#mobile-menu .mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s 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: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* ── Hamburger ──────────────────────────────────────────────── */
.menu-line:nth-child(3) {
    transition-delay: 0s;
}
#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}
#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.5rem;
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #070D1F; }
::-webkit-scrollbar-thumb { background: #162240; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #C9A84C; }

/* ── Selection ──────────────────────────────────────────────── */
::selection { background: rgba(201, 168, 76, 0.3); color: #fff; }