/* Base Styles & Reset */
html {
    scroll-behavior: smooth;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #f5f5f4;
}
::-webkit-scrollbar-thumb {
    background: #99f6e4;
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2dd4bf;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 20px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

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

.animate-fade-in-up {
    animation-name: fadeInUp;
    animation-duration: 0.8s;
    animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    animation-fill-mode: forwards;
}

.animate-fade-in {
    animation-name: fadeIn;
    animation-duration: 1s;
    animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    animation-fill-mode: forwards;
}

/* Scroll Reveal Utility */
.reveal-on-scroll {
    /* Default state: visible to ensure content renders even if JS fails */
    opacity: 1;
    transform: translateY(0);
}

/* When JS is active, these classes trigger the animation */
.reveal-on-scroll.is-visible {
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.reveal-on-scroll.delay-100 {
    animation-delay: 0.1s;
}

.reveal-on-scroll.delay-200 {
    animation-delay: 0.2s;
}

.reveal-on-scroll.delay-300 {
    animation-delay: 0.3s;
}

/* Navbar Scroll State */
.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

/* Mobile Menu Transitions */
#mobile-menu {
    transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

#mobile-menu.open {
    max-height: 300px;
    opacity: 1;
}

/* Image Aspect Ratios */
img {
    max-width: 100%;
    height: auto;
}