:root {
            --primary-color: #4CAF50;
            --secondary-color: #388E3C;
            --light-gray: #f5f5f5;
            --dark-gray: #333;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            background-color: white;
        }
        
        .app-bar {
            background-color: var(--primary-color);
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .app-title {
            font-weight: 700;
            font-size: 25px;
            margin: 0;
            text-align: center;
        }
        
        .nav-tabs {
            border-bottom: none;
            justify-content: center;
            margin-top: 15px;
        }
        
        .nav-tabs .nav-link {
            color: white;
            border: none;
            font-size: 14px;
            padding: 10px 15px;
            transition: all 0.3s;
        }
        
        .nav-tabs .nav-link.active {
            background-color: transparent;
            color: white;
            font-weight: bold;
            border-bottom: 2px solid white;
        }
        
        .nav-tabs .nav-link:hover {
            opacity: 0.8;
        }
        
        .tab-content {
            padding: 20px;
        }
        
        .banner {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
        }
        
        .product-image {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }
        
        .product-info {
            padding: 15px;
        }
        
        .product-title {
            font-weight: bold;
            margin-bottom: 5px;
        }
        
        .product-price {
            color: var(--primary-color);
            font-weight: bold;
        }
        
        .language-btn {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            cursor: pointer;
            z-index: 1000;
        }
        
        .language-menu {
            position: fixed;
            bottom: 90px;
            right: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            overflow: hidden;
            z-index: 1000;
            display: none;
        }
        
        .language-item {
            padding: 15px 20px;
            display: flex;
            align-items: center;
            cursor: pointer;
            transition: background 0.2s;
        }
        
        .language-item:hover {
            background: var(--light-gray);
        }
        
        .language-icon {
            margin-right: 10px;
            color: var(--primary-color);
        }
        
        .whatsapp-btn {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: #25D366;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            cursor: pointer;
            z-index: 1000;
            animation: float 3s ease-in-out infinite;
        }
        
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }
        
        .form-container {
            max-width: 600px;
            margin: 0 auto;
            padding: 20px;
            background: white;
            border-radius: 10px;
        }
        
        .form-title {
            color: var(--primary-color);
            text-align: center;
            margin-bottom: 30px;
        }
        
        .form-subtitle {
            text-align: center;
            color: #666;
            margin-bottom: 30px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            font-weight: 500;
            margin-bottom: 8px;
        }
        
        .form-control {
            border-radius: 10px;
            padding: 12px 15px;
            border: 1px solid #ddd;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(76, 175, 80, 0.25);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 12px;
            border-radius: 10px;
            font-weight: bold;
            width: 100%;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary-color);
        }
        
        .radio-group {
            display: flex;
            gap: 15px;
            margin-top: 10px;
        }
        
        .radio-option {
            display: flex;
            align-items: center;
        }
        
        .radio-option input {
            margin-right: 8px;
        }
        
        .error-message {
            color: #dc3545;
            font-size: 14px;
            margin-top: 5px;
        }
        
        .info-box {
            background-color: rgba(76, 175, 80, 0.1);
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
        }
        
        .section-title {
            color: var(--primary-color);
            font-size: 22px;
            font-weight: bold;
            margin-bottom: 15px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .contact-icon {
            color: var(--primary-color);
            margin-right: 10px;
            width: 24px;
            text-align: center;
        }