/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { overflow-x: hidden; }

/* ── Buttons ── */
.btn-mint {
    background: linear-gradient(135deg, #a7f3d0 0%, #6ee7b7 100%);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3), inset 0 1px 0 rgba(255,255,255,0.3);
    transition: all 0.3s ease;
}
.btn-mint:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4), inset 0 1px 0 rgba(255,255,255,0.3);
}

/* ── Hover lift ── */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(15, 43, 76, 0.15);
}

/* ── Nav scroll state ── */
#navbar.scrolled {
    background: rgba(250, 248, 245, 0.92);
    backdrop-blur-xl;
    box-shadow: 0 1px 20px rgba(15, 43, 76, 0.08);
}
#navbar.scrolled .nav-link { color: #163d6b; }
#navbar.scrolled .nav-link:hover { color: #10b981; }
#navbar.scrolled a[href="#hero"] span { color: #10b981; }

/* ── Scroll reveal ── */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Float animation ── */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* ── Mobile menu ── */
.mobile-link {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid rgba(15, 43, 76, 0.08);
    transition: color 0.2s ease;
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover { color: #10b981; }

/* ── Selection ── */
::selection {
    background: #a7f3d0;
    color: #0f2b4c;
}

/* ── Focus visible ── */
:focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
}

/* ── Responsive tweaks ── */
@media (max-width: 640px) {
    .font-display { font-size: 2.2rem; }
}