/**
 * 🚀 ULTRA 3D UI SYSTEM - 2025
 * Glass Morphism, 3D Effects, Interactive Grid
 */

:root {
    /* Glass Morphism Colors */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* 3D Colors */
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    /* Interactive Colors */
    --hover-glow: 0 0 30px rgba(102, 126, 234, 0.6);
    --active-glow: 0 0 50px rgba(102, 126, 234, 1);
}

/* Glass Morphism Base */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    border-color: rgba(255, 255, 255, 0.4);
}

/* 3D Card Effect */
.card-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.6s;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg) scale(1.05);
}

.card-3d-inner {
    transform-style: preserve-3d;
    transition: transform 0.6s;
}

/* Interactive Grid */
.ultra-interactive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    padding: 40px 20px;
    perspective: 1000px;
}

.ultra-interactive-grid-item {
    position: relative;
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    cursor: pointer;
}

.ultra-interactive-grid-item:hover {
    transform: translateY(-15px) rotateX(5deg) rotateY(5deg);
    z-index: 10;
}

.ultra-interactive-grid-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-1);
    opacity: 0;
    border-radius: 20px;
    transition: opacity 0.4s;
    pointer-events: none;
}

.ultra-interactive-grid-item:hover::after {
    opacity: 0.1;
}

/* Floating Animation */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

/* Glow Effect */
.glow-on-hover {
    transition: all 0.3s;
}

.glow-on-hover:hover {
    box-shadow: var(--hover-glow);
    transform: scale(1.05);
}

/* Particle Background */
.particle-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    opacity: 0.05;
    pointer-events: none;
}

/* Modern Button */
.btn-ultra-3d {
    background: var(--gradient-1);
    border: none;
    border-radius: 15px;
    padding: 15px 30px;
    color: white;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    transition: all 0.3s;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-ultra-3d::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ultra-3d:hover::before {
    width: 300px;
    height: 300px;
}

.btn-ultra-3d:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

.btn-ultra-3d:active {
    transform: translateY(-1px) scale(1.02);
}

/* Loading Skeleton with 3D */
.skeleton-3d {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.1) 0%, 
        rgba(255,255,255,0.2) 50%, 
        rgba(255,255,255,0.1) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    border-radius: 15px;
    transform-style: preserve-3d;
}

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

/* Responsive */
@media (max-width: 768px) {
    .ultra-interactive-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px 10px;
    }
    
    .glass-card:hover {
        transform: translateY(-5px) scale(1.01);
    }
}

/* Dark Mode Support */
.dark-mode .glass-card {
    --glass-bg: rgba(26, 26, 26, 0.3);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* Performance Optimizations */
.ultra-interactive-grid-item,
.glass-card,
.btn-ultra-3d {
    will-change: transform;
}

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