/* Custom Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUpDelay {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUpDelay2 {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
    opacity: 0;
}

.animate-slide-up-delay {
    animation: slideUpDelay 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.animate-slide-up-delay-2 {
    animation: slideUpDelay2 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

/* Scroll-triggered animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

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

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
}

/* Mobile menu transitions */
#mobile-menu {
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
}

#mobile-menu.hidden {
    max-height: 0;
    opacity: 0;
}

#mobile-menu:not(.hidden) {
    max-height: 300px;
    opacity: 1;
}

/* Navbar scroll effect */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Button hover effects */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* Form focus states */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

/* Image loading placeholder */
img {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

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

img[src] {
    animation: none;
    background: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .font-serif {
        font-size: 2.5rem;
    }
}