/* ── Base & Utilities ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* ── Nav scroll state ── */
nav.scrolled {
    background: rgba(10, 15, 26, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(212, 168, 83, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ── Nav link hover underline ── */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #d4a853;
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}

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

/* ── Scroll reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* ── Gold accent line animation ── */
@keyframes goldPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}
.gold-line-pulse {
    animation: goldPulse 3s ease-in-out infinite;
}

/* ── Input autofill override ── */
input:-webkit-autofill,
textarea:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 30px #151f32 inset !important;
    -webkit-text-fill-color: #f1f5f9 !important;
}

/* ── Selection color ── */
::selection {
    background: rgba(20, 184, 166, 0.3);
    color: #f1f5f9;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a0f1a;
}
::-webkit-scrollbar-thumb {
    background: #1e2d45;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2d4a6b;
}