*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hero fade-up animation — above-the-fold, always visible */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.7s ease-out both;
}

@keyframes bounceSlow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

.animate-bounce-slow {
    animation: bounceSlow 2.5s ease-in-out infinite;
}

/* Scroll reveal — below the fold only, progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fallback: if JS is disabled, all reveals are visible */
@media not all and (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Navbar glass effect */
#navbar.scrolled {
    background: rgba(250, 249, 246, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(63, 95, 48, 0.08);
}

/* Mobile menu transitions */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* Hamburger animation */
#menu-btn.active #bar1 {
    transform: translateY(4px) rotate(45deg);
}

#menu-btn.active #bar2 {
    opacity: 0;
}

#menu-btn.active #bar3 {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.25rem;
}

/* Subtle link underline animation */
a {
    text-decoration: none;
}

/* Selection color */
::selection {
    background: rgba(63, 95, 48, 0.15);
    color: #1a2e14;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #3f5f30;
    outline-offset: 2px;
    border-radius: 2px;
}

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