/* Custom Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #0a0f1c; 
        }
        ::-webkit-scrollbar-thumb {
            background: #1e293b; 
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #334155; 
        }
        
        /* Smooth Fade In */
        .fade-in-up {
            animation: fadeInUp 0.8s ease-out forwards;
            opacity: 0;
            transform: translateY(20px);
        }
        
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Hide Number Input Arrows */
        input[type=number]::-webkit-inner-spin-button, 
        input[type=number]::-webkit-outer-spin-button { 
            -webkit-appearance: none; 
            margin: 0; 
        }

        /* Glass Utility */
        .glass {
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
   /* Popup overlay */
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

/* Popup content */
.popup-content {
     background: rgba(0,0,0,0.9);
    width: 90%;
    max-width: 600px;
    padding: 30px;
    border-radius: 10px;
    text-align: left;
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
    animation: fadeIn 0.3s ease-in-out;
}

/* Close button */
.close-btn {
    position: absolute;
    top: 12px;
    right: 15px;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
    color: #333;
}

.close-btn:hover {
    color: red;
}

/* Fade-in animation */
@keyframes fadeIn {
    from {opacity: 0; transform: scale(0.9);}
    to {opacity: 1; transform: scale(1);}
}