*, *::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;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #FDF8F0; }
::-webkit-scrollbar-thumb { background: #059669; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #047857; }

/* Selection */
::selection { background: #A7F3D0; color: #064E3B; }

/* Blob animation for hero */
@keyframes blob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -50px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 50px) scale(1.05); }
}
.animate-blob { animation: blob 7s infinite ease-in-out; }
.animation-delay-2000 { animation-delay: 2s; }
.animation-delay-4000 { animation-delay: 4s; }

/* Scroll reveal animations (below fold only, progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* Nav link underline on hover */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #059669;
    border-radius: 999px;
    transition: width 0.2s, left 0.2s;
}
.nav-link:hover::after {
    width: 60%;
    left: 20%;
}

/* Focus visible */
:focus-visible {
    outline: 2px solid #059669;
    outline-offset: 2px;
    border-radius: 8px;
}

/* Smooth image loading */
img {
    display: block;
    max-width: 100%;
}