jsoncrack.com/src/components/Loading/index.tsx

import React from "react";
import styled from "styled-components";

interface LoadingProps {
  message?: string;
}

const StyledLoading = styled.div`
  position: fixed;
  top: 0;
  left: 0;
  display: grid;
  place-content: center;
  width: 100%;
  height: 100vh;
  text-align: center;
  background: ${({ theme }) => theme.BLACK_DARK};
  z-index: 10;
`;

const StyledLogo = styled.h2`
  font-weight: 600;
  font-size: 56px;
  pointer-events: none;
  margin-bottom: 10px;
`;

const StyledText = styled.span`
  color: #faa81a;
`;

const StyledMessage = styled.div`
  color: #b9bbbe;
  font-size: 24px;
  font-weight: 500;
`;

export const Loading: React.FC<LoadingProps> = ({ message }) => {
  return (
    <StyledLoading>
      <StyledLogo>
        <StyledText>JSON</StyledText> Crack
      </StyledLogo>
      <StyledMessage>
        {message ?? "Preparing the environment for you..."}
      </StyledMessage>
    </StyledLoading>
  );
};