html {
    scroll-behavior: smooth;
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #2563eb, #7c3aed);
}

/* Ensure animations start hidden */
.animate-fade-up,
.animate-fade-in,
.animate-slide-in {
    opacity: 0;
}

/* Animation keyframes - these are fallbacks if Tailwind config doesn't load */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Ensure smooth transitions for interactive elements */
* {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Custom gradient text animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-text-animated {
    background: linear-gradient(-45deg, #3b82f6, #8b5cf6, #ec4899, #3b82f6);
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Enhanced focus states for accessibility */
a:focus,
button:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 4px;
}

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

#mobile-menu.show {
    max-height: 300px;
}

/* Loading animation for when page is loading */
.loading {
    background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Backdrop blur fallback */
.backdrop-blur-md {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.backdrop-blur-sm {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* Enhanced shadow effects */
.shadow-glow {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

/* Responsive typography improvements */
@media (max-width: 640px) {
    .text-7xl {
        font-size: 3.5rem;
        line-height: 1;
    }
    
    .text-5xl {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .text-4xl {
        font-size: 2rem;
        line-height: 1.2;
    }
}

/* Intersection Observer animation trigger */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Print styles */
@media print {
    nav,
    footer,
    .no-print {
        display: none;
    }
    
    .print-break {
        page-break-before: always;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .bg-gradient-to-r {
        background: #000 !important;
        color: #fff !important;
    }
}