* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background: #f5f7fa;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        h1 {
            color: #2d3748;
            text-align: center;
            margin-bottom: 30px;
            font-size: 2.5em;
        }
        
        /* Product Grid */
        .products-section {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            margin-bottom: 30px;
        }
        
        .products-section h2 {
            color: #333;
            margin-bottom: 20px;
            font-size: 1.8em;
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            max-width: 1100px;
            margin: 0 auto;
        }
        
        .product-card {
            border: none;
            border-radius: 15px;
            padding: 0;
            text-align: center;
            transition: all 0.3s ease;
            background: white;
            cursor: pointer;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(192, 10, 10, 0.15);
        }
        
        .product-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: #f0f0f0;
            border-radius: 15px 15px 0 0;
        }
        
        .product-info {
            padding: 20px;
        }
        
        .product-name {
            font-size: 1.2em;
            font-weight: bold;
            color: #333;
            margin-bottom: 10px;
        }
        
        .product-price {
            font-size: 2em;
            color: #C00A0A;
            font-weight: bold;
            margin-bottom: 15px;
        }
        
        .product-description {
            color: #666;
            font-size: 0.9em;
            margin-bottom: 15px;
            min-height: 40px;
            line-height: 1.4;
        }
        
        .add-to-cart-btn {
            background: #C00A0A;
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 10px;
            font-size: 1em;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .add-to-cart-btn:hover {
            background: #a00808;
            box-shadow: 0 5px 15px rgba(192, 10, 10, 0.4);
        }
        
        .add-to-cart-btn:active {
            transform: scale(0.98);
        }
        
        /* Cart Section */
        .cart-section {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            margin-bottom: 30px;
            display: none;
        }
        
        .cart-section.active {
            display: block;
            animation: slideDown 0.4s ease;
        }
        
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .cart-section h2 {
            color: #333;
            margin-bottom: 20px;
            font-size: 1.8em;
        }
        
        .cart-empty {
            text-align: center;
            color: #999;
            padding: 40px;
            font-size: 1.2em;
        }
        
        .cart-items {
            margin-bottom: 20px;
        }
        
        .cart-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px;
            border-bottom: 1px solid #e0e0e0;
            transition: background 0.3s ease;
        }
        
        .cart-item:hover {
            background: #f9f9f9;
        }
        
        .cart-item-info {
            flex: 1;
        }
        
        .cart-item-name {
            font-weight: bold;
            color: #333;
            margin-bottom: 5px;
        }
        
        .cart-item-price {
            color: #C00A0A;
            font-size: 1.1em;
        }
        
        .cart-item-controls {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        /* OPRAVENÉ TLAČÍTKA + A - */
        .qty-btn {
            background: #C00A0A !important;
            color: white !important;
            border: none !important;
            width: 32px !important;
            height: 32px !important;
            border-radius: 8px !important; /* Změněno z 50% na 8px - čtvercové s lehce zaoblenými rohy */
            cursor: pointer !important;
            font-size: 1.2em !important;
            font-weight: bold !important;
            line-height: 1 !important;
            display: inline-flex !important;
            align-items: center !important;
            justify-content: center !important;
            transition: all 0.3s ease !important;
        }
        
        .qty-btn:hover {
            background: #a00808;
            transform: scale(1.1);
        }
        
        .qty-display {
            font-size: 1.2em;
            font-weight: bold;
            min-width: 30px;
            text-align: center;
        }
        
        .remove-btn {
            background: #ff4757;
            color: white;
            border: none;
            padding: 8px 15px;
            border-radius: 15px;
            cursor: pointer;
            font-size: 0.9em;
            transition: all 0.3s ease;
        }
        
        .remove-btn:hover {
            background: #ff3838;
            transform: scale(1.05);
        }
        
        .cart-total {
            text-align: right;
            padding: 20px;
            border-top: 2px solid #C00A0A;
            margin-top: 20px;
        }
        
        .cart-total-label {
            font-size: 1.3em;
            color: #666;
            margin-bottom: 10px;
        }
        
        .cart-total-amount {
            font-size: 2.5em;
            font-weight: bold;
            color: #C00A0A;
        }
        
        .proceed-btn {
            background: #C00A0A;
            color: white;
            border: none;
            padding: 15px 40px;
            border-radius: 25px;
            font-size: 1.2em;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            margin-top: 20px;
            transition: all 0.3s ease;
        }
        
        .proceed-btn:hover {
            background: #a00808;
            transform: scale(1.02);
            box-shadow: 0 5px 15px rgba(192, 10, 10, 0.4);
        }
        
        /* Checkout Section */
        .checkout-section {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            display: none;
        }
        
        .checkout-section.active {
            display: block;
            animation: slideDown 0.4s ease;
        }
        
        .checkout-section h2 {
            color: #333;
            margin-bottom: 20px;
            font-size: 1.8em;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            color: #333;
            font-weight: bold;
            margin-bottom: 8px;
        }
        
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1em;
            transition: all 0.3s ease;
        }
        
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #C00A0A;
            box-shadow: 0 0 0 3px rgba(192, 10, 10, 0.1);
        }
        
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .payment-btn {
            background: #C00A0A;
            color: white;
            border: none;
            padding: 18px 40px;
            border-radius: 25px;
            font-size: 1.3em;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            margin-top: 20px;
            transition: all 0.3s ease;
        }
        
        .payment-btn:hover {
            background: #a00808;
            transform: scale(1.02);
            box-shadow: 0 5px 15px rgba(192, 10, 10, 0.4);
        }
        
        .payment-btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
        }
        
        .order-summary {
            background: #f5f7fa;
            padding: 20px;
            border-radius: 15px;
            margin-bottom: 20px;
        }
        
        .order-summary h3 {
            color: #333;
            margin-bottom: 15px;
        }
        
        .summary-item {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            color: #666;
        }
        
        .summary-total {
            border-top: 2px solid #C00A0A;
            margin-top: 10px;
            padding-top: 10px;
            font-size: 1.3em;
            font-weight: bold;
            color: #C00A0A;
        }
        
        /* Success Message */
        .success-message {
            background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
            color: white;
            padding: 20px;
            border-radius: 15px;
            margin-bottom: 20px;
            text-align: center;
            display: none;
            animation: slideDown 0.4s ease;
        }
        
        .success-message.active {
            display: block;
        }
        
        .success-icon {
            font-size: 3em;
            margin-bottom: 10px;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .product-grid {
                grid-template-columns: 1fr;
            }
            
            .form-row {
                grid-template-columns: 1fr;
            }
            
            h1 {
                font-size: 2em;
            }
        }