body { background-color: #FDFBF7; }
        .glass-panel {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 10px 40px -10px rgba(177, 32, 37, 0.15);
        }
        /* Hide spinner for number input */
        input[type=number]::-webkit-inner-spin-button, 
        input[type=number]::-webkit-outer-spin-button { 
            -webkit-appearance: none; margin: 0; 
        }