:root {
            --primary-color: #4CAF50;
            --primary-dark: #388E3C;
            --primary-light: #A5D6A7;
            --secondary-color: #2196F3;
            --secondary-dark: #1976D2;
            --secondary-light: #90CAF9;
            --background-color: #f8f9fa;
            --text-color: #333;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            overflow-x: hidden;
        }
        
        .container {
            max-width: auto;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .hero {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        .section {
            padding: 60px 0;
            position: relative;
        }
        
        .card {
            background: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            overflow: hidden;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            color: white;
            border-radius: 30px;
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
        }
        
        .btn-secondary {
            background-color: var(--secondary-color);
            color: white;
            border-radius: 30px;
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        
        .btn-secondary:hover {
            background-color: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(33, 150, 243, 0.3);
        }
        
        .input-group {
            margin-bottom: 20px;
        }
        
        .input-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
            color: var(--text-color);
        }
        
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
        }
        
        .result-card {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 25px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            margin-top: 30px;
        }
        
        .result-card h3 {
            margin-top: 0;
            font-size: 24px;
            font-weight: 700;
        }
        
        .nutrient-bar {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 30px;
            height: 10px;
            margin: 10px 0;
        }
        
        .nutrient-value {
            background: white;
            border-radius: 30px;
            height: 10px;
            width: 0%;
            transition: width 1s ease;
        }
        
        .canvas-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }
        
        .info-card {
            background: white;
            border-left: 5px solid var(--primary-color);
            padding: 20px;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .info-card h3 {
            color: var(--primary-color);
            margin-top: 0;
        }
        
        .food-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
            padding: 10px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        
        .food-item:hover {
            background-color: rgba(76, 175, 80, 0.1);
        }
        
        .food-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .food-details {
            flex-grow: 1;
        }
        
        .food-name {
            font-weight: 600;
            margin-bottom: 2px;
        }
        
        .food-nutrients {
            font-size: 14px;
            color: #6c757d;
        }
        
        .accordion {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .accordion-header {
            padding: 20px;
            background-color: var(--primary-light);
            color: var(--text-color);
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }
        
        .accordion-header:hover {
            background-color: var(--primary-color);
            color: white;
        }
        
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 20px;
        }
        
        .accordion-content.active {
            max-height: 1000px;
            padding: 20px;
        }
        
        .tab-container {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
        }
        
        .tabs {
            display: flex;
            background-color: var(--secondary-light);
        }
        
        .tab {
            padding: 15px 20px;
            cursor: pointer;
            flex-grow: 1;
            text-align: center;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .tab.active {
            background-color: var(--secondary-color);
            color: white;
        }
        
        .tab-content {
            display: none;
            padding: 20px;
            background-color: white;
        }
        
        .tab-content.active {
            display: block;
        }
        
        .nutrient-chart {
            width: 100%;
            height: 300px;
            margin: 20px 0;
        }
        
        @keyframes float {
            0% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
            100% {
                transform: translateY(0px);
            }
        }
        
        .floating {
            animation: float 6s ease-in-out infinite;
        }
        
        .icon-3d {
            transform-style: preserve-3d;
            perspective: 1000px;
            transition: transform 0.3s ease;
        }
        
        .icon-3d:hover {
            transform: rotateY(15deg) rotateX(10deg);
        }
        
        .bubble {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
            animation: float 8s ease-in-out infinite;
            z-index: 1;
        }
        
        .tooltip {
            position: relative;
            display: inline-block;
            cursor: pointer;
        }
        
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: #333;
            color: white;
            text-align: center;
            border-radius: 6px;
            padding: 10px;
            position: absolute;
            z-index: 10;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }
        
        @media (max-width: 768px) {
            .hero {
                padding: 60px 0;
            }
            
            .tabs {
                flex-direction: column;
            }
        }