/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* ===== NAV SCROLL SHADOW ===== */
#mainNav.scrolled {
    box-shadow: 0 1px 20px rgba(45, 96, 25, 0.08);
}

/* ===== MOBILE MENU ===== */
.mobile-menu-open { overflow: hidden; }
.mobile-menu-open body { overflow: hidden; }

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

#mobileMenu.open .mobile-link {
    animation: fadeDown 0.3s ease forwards;
}
#mobileMenu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobileMenu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Hamburger animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.2s ease, width 0.3s ease;
}
#menuBtn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menuBtn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.5rem;
}

/* ===== SCROLL REVEAL (below-the-fold only) ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== SECTION REVEAL UTILITY ===== */
.section-reveal {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SMOOTH IMAGE LOADING ===== */
img {
    image-rendering: auto;
    image-rendering: -webkit-optimize-contrast;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #faf8f0; }
::-webkit-scrollbar-thumb { background: #aed09e; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #7fb86a; }

/* ===== FORM FOCUS RING ===== */
input:focus, textarea:focus {
    outline: none;
}

/* ===== CARD HOVER LIFT ===== */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(45, 96, 25, 0.12);
}