@keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        @keyframes twinkle {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        .animate-fadeIn { animation: fadeIn 0.5s ease-out; }
        .animate-spin { animation: spin 1s linear infinite; }
        .animate-float { animation: float 3s ease-in-out infinite; }
        
        .star {
            position: absolute;
            width: 2px;
            height: 2px;
            background: white;
            border-radius: 50%;
            animation: twinkle 3s ease-in-out infinite;
        }
        
        body {
            background: linear-gradient(to bottom, #0a0e27 0%, #1a1a3e 50%, #2d1b4e 100%);
            position: relative;
            overflow-x: hidden;
        }
        
        .camera-overlay video {
            filter: brightness(0.9);
        }
        
        .back-button {
            position: fixed;
            top: 20px;
            left: 20px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.9) 0%, rgba(99, 102, 241, 0.9) 100%);
            backdrop-filter: blur(10px);
            color: white;
            padding: 12px 24px;
            border-radius: 12px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
            z-index: 1000;
            border: 1px solid rgba(139, 92, 246, 0.5);
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
            transition: all 0.3s ease;
        }
        
        .back-button:hover {
            transform: translateX(-5px);
            box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
        }
        
        .back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.9) 0%, rgba(99, 102, 241, 0.9) 100%);
    backdrop-filter: blur(10px);
    color: white;
    padding: 12px 24px;
    border-radius: 12px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    z-index: 1000;
    border: 1px solid rgba(139, 92, 246, 0.5);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
    transition: all 0.3s ease;
}

.back-button:hover {
    transform: translateX(-5px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

.back-button svg {
    transition: transform 0.3s ease;
}

.back-button:hover svg {
    transform: translateX(-3px);
                    }