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

/* ── Nav Links ────────────────────────────────────── */
.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Mobile Menu ──────────────────────────────────── */
.mobile-link { position: relative; }
#mobile-menu.open { opacity: 1; pointer-events: all; }
#mobile-menu.closed { opacity: 0; pointer-events: none; }

.menu-line { display: block; }
body.menu-open .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
body.menu-open .menu-line:nth-child(2) {
    opacity: 0;
}
body.menu-open .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.25rem;
}

/* ── Floating Cards ───────────────────────────────── */
.floating-card {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(2, 44, 34, 0.4);
}
.card-1 { animation: float1 6s ease-in-out infinite; }
.card-2 { animation: float2 7s ease-in-out infinite; }
.card-3 { animation: float3 5.5s ease-in-out infinite; }
.card-4 { animation: float4 6.5s ease-in-out infinite; }

@keyframes float1 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
}
@keyframes float2 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}
@keyframes float3 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(0.5deg); }
}
@keyframes float4 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(-0.5deg); }
}

/* ── Scroll Reveal ────────────────────────────────── */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Initial state — visible by default (no JS required) */
.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* Progressive enhancement: add animation when JS runs and user prefers motion */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Selection ────────────────────────────────────── */
::selection {
    background: rgba(6, 79, 70, 0.2);
    color: #064e3b;
}