/* Custom styles for LJP Lab */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Fade-in animations for hero (above fold - always visible) */
.fade-in {
    opacity: 1;
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.1s;
}

.fade-in-delay-2 {
    animation-delay: 0.2s;
}

.fade-in-delay-3 {
    animation-delay: 0.3s;
}

.fade-in-delay-4 {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal for below-fold content */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

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

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

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

::-webkit-scrollbar-track {
    background: #f7f1e6;
}

::-webkit-scrollbar-thumb {
    background: #46834b;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2d6333;
}

/* Selection color */
::selection {
    background: #46834b;
    color: #fcf9f4;
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}