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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(79, 217, 168, 0.3);
    color: #f0fdf4;
}

/* ─── Scroll Reveal (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        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-left {
        opacity: 0;
        transform: translateX(-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-right {
        opacity: 0;
        transform: translateX(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-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translate(0, 0);
    }
}

/* Fallback: always visible if JS is disabled or reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
    }
}

/* ─── Navbar ─── */
#nav {
    background: transparent;
}

#nav.scrolled {
    background: rgba(2, 5, 16, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(79, 217, 168, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #4FD9A8;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: #7EE8C0;
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.menu-line {
    transform-origin: center;
}

body.menu-open {
    overflow: hidden;
}

/* ─── Smooth image loading ─── */
img {
    image-rendering: auto;
    loading: lazy;
}

/* ─── Custom scrollbar ─── */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #020510;
}

::-webkit-scrollbar-thumb {
    background: rgba(79, 217, 168, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(79, 217, 168, 0.5);
}

/* ─── Focus styles ─── */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #4FD9A8;
    outline-offset: 4px;
    border-radius: 4px;
}

/* ─── Map dark mode override ─── */
iframe[title*="Map"] {
    border-radius: 16px;
}

/* ─── Print ─── */
@media print {
    #nav, #mobile-menu { display: none !important; }
    body { background: white; color: black; }
    a { color: black; }
}