/* Custom styles and animations */
:root {
    --color-midnight-900: #102a43;
    --color-midnight-800: #243b53;
    --color-mint-500: #22c55e;
    --color-mint-400: #4ade80;
}

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* Scroll reveal animations */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll effect */
nav.scrolled {
    box-shadow: 0 4px 20px rgba(16, 42, 67, 0.1);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #627d98;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #334e68;
}

/* Button hover effects */
a, button {
    transition: all 0.3s ease;
}

/* Image loading placeholder */
img {
    background: linear-gradient(90deg, #f0f4f8 25%, #e2e8f0 50%, #f0f4f8 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

img.loaded {
    animation: none;
    background: none;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Mobile menu animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

#mobile-menu.open {
    max-height: 400px;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #22c55e;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection color */
::selection {
    background-color: #bbf7d0;
    color: #102a43;
}