/* CSS Variables for Design System */
:root {
    --background: 222 47% 11%;
    --foreground: 210 40% 98%;

    --card: 222 35% 15%;
    --card-foreground: 210 40% 98%;

    --popover: 222 35% 15%;
    --popover-foreground: 210 40% 98%;

    --primary: 263 70% 50%;
    --primary-foreground: 210 40% 98%;

    --secondary: 217 33% 17%;
    --secondary-foreground: 210 40% 98%;

    --muted: 215 20% 25%;
    --muted-foreground: 217 10% 70%;

    --accent: 263 70% 50%;
    --accent-foreground: 210 40% 98%;

    --destructive: 0 62% 30%;
    --destructive-foreground: 210 40% 98%;

    --border: 215 25% 20%;
    --input: 215 25% 20%;
    --ring: 263 70% 50%;

    --radius: 0.75rem;

    --neon-purple: 263 70% 50%;
    --neon-blue: 200 100% 50%;
    --dark-navy: 222 47% 11%;
    --accent-cyan: 180 100% 50%;
}

/* Base Styles */
* {
    border-color: hsl(var(--border));
}

body {
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Custom Animations */
@keyframes fade-up {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

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

.animate-gradient {
    background-size: 200% 200%;
    animation: gradient 3s ease infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

::-webkit-scrollbar-track {
    background: hsl(var(--background));
}

::-webkit-scrollbar-thumb {
    background: hsl(var(--primary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: hsl(var(--primary) / 0.8);
}

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

/* Focus Styles */
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid hsl(var(--ring));
    outline-offset: 2px;
}

/* Button Hover Effects */
button {
    transition: all 0.2s ease-in-out;
}

/* Card Hover Effects */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

.group:hover .group-hover\:translate-x-1 {
    transform: translateX(0.25rem);
}

/* Mobile Menu Animation */
#mobile-menu {
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

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

#mobile-menu:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

/* Navigation Scroll Effect */
.nav-scrolled {
    background-color: hsl(var(--background) / 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid hsl(var(--border));
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

/* Form Input Styles */
input, textarea {
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

input:focus, textarea:focus {
    border-color: hsl(var(--ring));
    box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, hsl(var(--neon-purple)), hsl(var(--neon-blue)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Loading Animation */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .text-6xl {
        font-size: 3rem;
        line-height: 1.1;
    }
    
    .text-8xl {
        font-size: 4rem;
        line-height: 1.1;
    }
    
    .text-5xl {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .text-6xl {
        font-size: 3rem;
        line-height: 1.2;
    }
}

/* Print Styles */
@media print {
    .fixed {
        position: static !important;
    }
    
    .hidden {
        display: none !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border: 0 0% 50%;
        --muted-foreground: 0 0% 50%;
    }
}

/* Reduced Motion */
@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;
    }
}

/* Dark Mode Specific Styles */
.dark {
    color-scheme: dark;
}

/* Selection Styles */
::selection {
    background-color: hsl(var(--primary) / 0.3);
    color: hsl(var(--primary-foreground));
}

/* Placeholder Styles */
::placeholder {
    color: hsl(var(--muted-foreground));
    opacity: 1;
}

/* Image Optimization */
img {
    max-width: 100%;
    height: auto;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Visible */
.focus-visible:focus {
    outline: 2px solid hsl(var(--ring));
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}