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

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

body {
    overflow-x: hidden;
}

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

.animate-fade-up {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Scroll reveal */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal[data-revealed="false"] {
    opacity: 0;
    transform: translateY(32px);
}

/* Navbar */
#navbar {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(250, 249, 246, 0.85);
    border-bottom: 1px solid rgba(5, 150, 105, 0.08);
}

#navbar.scrolled {
    background: rgba(250, 249, 246, 0.95);
    box-shadow: 0 1px 0 rgba(5, 150, 105, 0.06);
}

/* Mobile menu */
.mobile-link {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

/* Menu button animation */
.menu-line {
    transform-origin: center;
}

.menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(2px, 2px);
}

.menu-btn.active .menu-line:nth-child(2) {
    transform: rotate(-45deg) translate(0px, 0px);
}

/* Subtle hover underline on links */
a:not(.mobile-link):not([class*="bg-"]):not([class*="text-emerald-"]) {
    position: relative;
}

/* Selection color */
::selection {
    background: rgba(5, 150, 105, 0.15);
    color: #064E3B;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .animate-fade-up {
        animation: none;
        opacity: 1;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    img {
        transition: none;
    }
}