:root {
            --primary-color: #4CAF50;
            --primary-light: #81C784;
            --primary-dark: #2E7D32;
            --secondary-color: #2196F3;
            --secondary-light: #64B5F6;
            --secondary-dark: #1565C0;
        }
        
        body {
            background: #f9fafb;
            color: #333;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .bg-primary { background-color: var(--primary-color); }
        .bg-primary-light { background-color: var(--primary-light); }
        .bg-primary-dark { background-color: var(--primary-dark); }
        .bg-secondary { background-color: var(--secondary-color); }
        .bg-secondary-light { background-color: var(--secondary-light); }
        .bg-secondary-dark { background-color: var(--secondary-dark); }
        
        .text-primary { color: var(--primary-color); }
        .text-primary-dark { color: var(--primary-dark); }
        .text-secondary { color: var(--secondary-color); }
        .border-primary { border-color: var(--primary-color); }
        .border-secondary { border-color: var(--secondary-color); }
        
        .hero-pattern {
            background-color: #ffffff;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cg fill-rule='evenodd'%3E%3Cg fill='%234CAF50' fill-opacity='0.1'%3E%3Cpath opacity='.5' d='M96 95h4v1h-4v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9zm-1 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-9-10h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm9-10v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-9-10h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm9-10v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-9-10h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm9-10v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-9-10h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9z'/%3E%3Cpath d='M6 5V0H5v5H0v1h5v94h1V6h94V5H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        
        .card {
            border-radius: 16px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease-in-out;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        
        .btn-secondary {
            background-color: var(--secondary-color);
            transition: all 0.3s ease;
        }
        
        .btn-secondary:hover {
            background-color: var(--secondary-dark);
            transform: translateY(-2px);
        }
        
        .progress-bar {
            height: 8px;
            border-radius: 4px;
            transition: width 0.5s ease-in-out;
        }
        
        /* Custom range slider styling */
        input[type="range"] {
            -webkit-appearance: none;
            width: 100%;
            height: 8px;
            border-radius: 5px;  
            background: #d3d3d3;
            outline: none;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%; 
            background: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        input[type="range"]::-webkit-slider-thumb:hover {
            background: var(--primary-dark);
            transform: scale(1.1);
        }
        
        .fade-in {
            animation: fadeIn 0.8s ease-in;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        .rotate-icon {
            transition: transform 0.5s ease;
        }
        
        .rotate-icon:hover {
            transform: rotate(360deg);
        }
        
        .nutrient-bar {
            transition: width 1s ease-in-out;
        }
        
        table {
            border-collapse: separate;
            border-spacing: 0;
        }
        
        th, td {
            padding: 12px 15px;
            border-bottom: 1px solid #eee;
        }
        
        tr:hover {
            background-color: rgba(76, 175, 80, 0.05);
        }
        
        .ripple {
            position: relative;
            overflow: hidden;
        }
        
        .ripple:after {
            content: "";
            display: block;
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            pointer-events: none;
            background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
            background-repeat: no-repeat;
            background-position: 50%;
            transform: scale(10, 10);
            opacity: 0;
            transition: transform .5s, opacity 1s;
        }
        
        .ripple:active:after {
            transform: scale(0, 0);
            opacity: .3;
            transition: 0s;
        }

        /* Custom Food Item Style */
        .food-item {
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }
        
        .food-item:hover {
            border-left: 4px solid var(--primary-color);
            background-color: rgba(76, 175, 80, 0.05);
        }

        /* SVG Wave Animation */
        .wave {
            animation: wave 8s cubic-bezier(0.36, 0.45, 0.63, 0.53) infinite;
            transform-origin: center bottom;
        }

        @keyframes wave {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-15px);
            }
        }
        
        /* Print-friendly styles */
        @media print {
            body {
                width: 100%;
                margin: 0;
                padding: 0;
            }
            
            .no-print {
                display: none;
            }
            
            .page-break {
                page-break-after: always;
            }
        }