/* Additional animations and effects */

@keyframes pulseglow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(0, 212, 255, 0.6), 0 0 60px rgba(0, 212, 255, 0.3);
    }
}

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

@keyframes nebula {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

/* Space-themed decorative elements */
.cosmic-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 107, 107, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
    animation: nebula 20s ease-in-out infinite;
}

/* Holographic text effect */
.holographic {
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #00d4ff);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: hologram 3s ease-in-out infinite;
}

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

/* Floating particles */
.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #00d4ff;
    border-radius: 50%;
    animation: float-particle 6s linear infinite;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

/* Cyber grid effect */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -10;
}

/* Quantum loader */
.quantum-loader {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    border-top-color: #00d4ff;
    animation: quantum-spin 1s ease-in-out infinite;
}

@keyframes quantum-spin {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

/* Matrix rain effect */
.matrix-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -5;
    opacity: 0.1;
}

/* Cosmic dust */
.cosmic-dust {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="0.5" fill="rgba(255,255,255,0.3)"/><circle cx="30" cy="20" r="0.3" fill="rgba(0,212,255,0.4)"/><circle cx="60" cy="30" r="0.4" fill="rgba(255,215,0,0.3)"/><circle cx="80" cy="50" r="0.2" fill="rgba(255,107,107,0.3)"/></svg>') repeat;
    animation: drift 30s linear infinite;
    pointer-events: none;
    z-index: -8;
}

@keyframes drift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100px, -100px); }
}

/* Responsive enhancements */
@media (max-width: 1024px) {
    .cosmic-bg::before {
        animation-duration: 15s;
    }
    
    .particle {
        animation-duration: 4s;
    }
}

@media (max-width: 768px) {
    .holographic {
        background-size: 200% 200%;
    }
    
    .cyber-grid {
        background-size: 30px 30px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #ffffff;
        --secondary-color: #000000;
        --accent-color: #ffff00;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .stars, .stars2, .stars3 {
        animation: none;
    }
}