/* Base styles & custom properties */
:root {
    --emerald-50: #ecfdf5;
    --emerald-100: #d1fae5;
    --emerald-500: #10b981;
    --emerald-600: #059669;
    --emerald-700: #047857;
    --emerald-800: #065f46;
    --emerald-900: #064e3b;
    --cream-50: #fffef9;
}

html {
    scroll-behavior: smooth;
}

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

/* Scroll reveal - progressive enhancement, hidden by default via JS */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .scroll-reveal:not(.revealed) {
        opacity: 0;
        transform: translateY(24px);
    }
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(255, 254, 249, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(5, 150, 105, 0.1);
}

/* Mobile menu transitions */
#mobile-menu {
    animation: slideDown 0.25s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cream-50);
}

::-webkit-scrollbar-thumb {
    background: var(--emerald-200);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--emerald-400);
}

/* Selection color */
::selection {
    background: var(--emerald-200);
    color: var(--emerald-900);
}