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

/* ── Floating Animations ── */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
}
@keyframes float-delay {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}
@keyframes float-delay-2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.animate-float { animation: float 4s ease-in-out infinite; }
.animate-float-delay { animation: float-delay 5s ease-in-out infinite; }
.animate-float-delay-2 { animation: float-delay-2 4.5s ease-in-out infinite; }

/* ── Mobile Menu ── */
.mobile-link {
    position: relative;
}
.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #fbbf24;
    transition: width 0.3s ease;
}
.mobile-link:hover::after {
    width: 100%;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
                    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
    }
    .reveal.visible {
        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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ── Nav active state ── */
nav.scrolled .bg-plum-950\/80 {
    background: rgba(15, 5, 24, 0.95);
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0f0518; }
::-webkit-scrollbar-thumb { background: #9d174d; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #be185d; }

/* ── Focus visible ── */
*:focus-visible {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* ── Selection ── */
::selection {
    background: rgba(251, 191, 36, 0.3);
    color: #fbbf24;
}