/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

/* ── Navbar ── */
.nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(250, 250, 245, 0);
    transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.nav-fixed.scrolled {
    background: rgba(250, 250, 245, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}

/* ── Hero Gradient ── */
.hero-gradient {
    background: linear-gradient(135deg, #163a16 0%, #2d6a2d 35%, #3d7a3d 60%, #5a9a5a 100%);
    position: relative;
}

/* ── Decorative Circles ── */
.hero-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
    background: white;
}
.circle-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -150px;
    animation: float 20s ease-in-out infinite;
}
.circle-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}
.circle-3 {
    width: 200px;
    height: 200px;
    top: 40%;
    left: 10%;
    animation: float 12s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(20px, -30px) scale(1.02); }
    50% { transform: translate(-10px, 20px) scale(0.98); }
    75% { transform: translate(15px, 10px) scale(1.01); }
}

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

    .reveal-up.visible,
    .reveal-left.visible,
    .reveal-right.visible {
        opacity: 1;
        transform: translate(0, 0);
    }
}

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

/* ── Mobile menu ── */
#mobileMenu {
    animation: slideDown 0.25s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f5f5ee; }
::-webkit-scrollbar-thumb { background: #2d6a2d; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #1f4f1f; }