/* ── Base & Reset ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; height: auto; display: block; }

/* ── Nav Link Hover Underline ── */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: currentColor;
    transition: width 0.25s ease;
    opacity: 0.5;
}
.nav-link:hover::after {
    width: 100%;
}

/* ── Header Scrolled State ── */
#site-header.scrolled {
    background: rgba(253, 252, 250, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(74, 124, 74, 0.08);
}

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

/* ── Reveal Animations (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .reveal-up.animated,
    .reveal-left.animated,
    .reveal-right.animated {
        opacity: 1;
        transform: none;
    }

    /* Default visible state — JS adds .animated for the transition */
    .reveal-up {
        opacity: 1;
    }
    .reveal-up.js-animate {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-up.js-animate.animated {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-left {
        opacity: 1;
    }
    .reveal-left.js-animate {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-left.js-animate.animated {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-right {
        opacity: 1;
    }
    .reveal-right.js-animate {
        opacity: 0;
        transform: translateX(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-right.js-animate.animated {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ── Reduced motion — no animations ── */
@media (prefers-reduced-motion: reduce) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    html { scroll-behavior: auto; }
}

/* ── Selection ── */
::selection {
    background: rgba(74, 124, 74, 0.15);
    color: #1a2e1a;
}

/* ── Focus visible ── */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #4a7c4a;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Smooth image loading ── */
img {
    background-color: #f0f5f0;
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #faf7f2;
}
::-webkit-scrollbar-thumb {
    background: #b9d0b9;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #8fb88f;
}