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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

/* Hero reveal animations — above the fold, always visible */
.reveal {
    opacity: 1;
    transform: translateY(0);
    animation: fadeUp 0.8s ease forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal — below the fold, progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .scroll-reveal.hidden-scroll {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
}

/* Fallback for no-JS scroll reveal */
@media not all and (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar transitions */
#navbar {
    transition: background-color 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background-color: rgba(254, 252, 232, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(6, 78, 59, 0.08);
}

#navbar.scrolled .font-serif,
#navbar.scrolled a {
    color: rgb(6, 78, 59);
}

#navbar.scrolled a:hover {
    color: rgb(5, 150, 105);
}

/* Mobile menu transitions */
#mobile-menu {
    animation: menuSlide 0.3s ease forwards;
}

#mobile-menu.hidden {
    animation: menuHide 0.25s ease forwards;
}

@keyframes menuSlide {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes menuHide {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Subtle image hover */
img {
    display: block;
}

/* Selection color */
::selection {
    background-color: rgb(5, 150, 105);
    color: rgb(254, 252, 232);
}

/* Thin scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgb(254, 252, 232);
}

::-webkit-scrollbar-thumb {
    background: rgb(16, 185, 129);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgb(5, 150, 105);
}