/* ── Base & Animations ─────────────────────────────────── */

@layer base {
    html {
        scroll-behavior: smooth;
    }

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

    ::selection {
        background-color: rgba(5, 150, 105, 0.2);
        color: #064e3b;
    }
}

/* ── Scroll Reveal (progressive enhancement) ──────────── */
@media (prefers-reduced-motion: no-preference) {
    .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);
    }

    .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; }
}

/* ── Float Animations ─────────────────────────────────── */
@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-24px) scale(1.04); }
}

@keyframes float-delayed {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-18px) scale(1.02); }
}

.animate-float {
    animation: float 8s ease-in-out infinite;
}

.animate-float-delayed {
    animation: float-delayed 10s ease-in-out infinite;
    animation-delay: -3s;
}

/* ── Mobile Menu Transitions ──────────────────────────── */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    opacity: 0;
}

#mobile-menu.open {
    max-height: 500px;
    opacity: 1;
}

/* ── Navbar Scrolled State ────────────────────────────── */
#navbar.scrolled {
    background-color: rgba(253, 252, 248, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(4, 120, 87, 0.08);
    box-shadow: 0 1px 24px rgba(4, 120, 87, 0.06);
}

#navbar.scrolled .font-serif {
    color: #064e3b !important;
}

/* ── Utility ──────────────────────────────────────────── */
html {
    scroll-padding-top: 80px;
}