/* Custom Animations */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #1e5a96;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2c74b3;
}

/* Navbar Scroll Effect */
.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Loading Animation */
.loading {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.loaded {
    opacity: 1;
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Background Pattern */
.pattern-dots {
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #1e5a96 0%, #2c74b3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Image Overlay */
.img-overlay {
    position: relative;
    overflow: hidden;
}

.img-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.img-overlay:hover::after {
    opacity: 1;
}

/* Responsive Typography */
@media (max-width: 640px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
}

/* Accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: #1e5a96;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* Print Styles */
@media print {
    nav, footer, #scrollToTop {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed in the future */
}

/* Custom Utilities */
.text-shadow {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Transition Utilities */
.transition-all-slow {
    transition: all 0.5s ease;
}

/* Focus Styles for Accessibility */
a:focus, button:focus {
    outline: 2px solid #1e5a96;
    outline-offset: 2px;
}

/* Loading State */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

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