/* Custom CSS for additional styling and animations */

/* Font smoothing and base styles */
* {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation Link Hover Effect */
.nav-link {
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: linear-gradient(90deg, #2563eb, #0ea5e9);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out forwards;
}

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

.hero-cta {
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.hero-cta:hover {
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.3);
    transform: translateY(-2px) scale(1.05);
}

/* Feature Cards Animation */
.feature-card {
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Scroll Animations */
.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s ease-out;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s ease-out;
}

.fade-in-left.animate,
.fade-in-right.animate {
    opacity: 1;
    transform: translateX(0);
}

/* Gradient Text Animation */
.gradient-text {
    background: linear-gradient(-45deg, #2563eb, #0ea5e9, #06b6d4, #8b5cf6);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Button Pulse Effect */
.pulse-button {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Hover Effects for Interactive Elements */
.hover-lift {
    transition: all 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2563eb, #0ea5e9);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #1d4ed8, #0284c7);
}

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

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

/* Loading Animation */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Intersection Observer Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease-out;
}

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

/* Custom Focus States */
button:focus,
a:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Smooth transitions for theme changes */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Enhanced hover states */
.interactive-element {
    position: relative;
    overflow: hidden;
}

.interactive-element::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.interactive-element:hover::before {
    left: 100%;
}

/* Responsive image optimization */
img {
    max-width: 100%;
    height: auto;
    transition: all 0.3s ease;
}

img:hover {
    transform: scale(1.02);
}

/* Custom selection colors */
::selection {
    background: rgba(37, 99, 235, 0.2);
    color: #1e293b;
}

::-moz-selection {
    background: rgba(37, 99, 235, 0.2);
    color: #1e293b;
}

/* Performance optimizations */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    .feature-card {
        border: 2px solid #000;
    }
    
    .hero-cta {
        border: 2px solid #000;
    }
}

/* Dark mode preparation */
@media (prefers-color-scheme: dark) {
    /* Future dark mode styles can be added here */
}