styles.css

:root {
  --black: #111;
  --gray: #555;
  --gray-dark: #1c1d21;
  --gray-light: #888;
  --white: #f7f7f7;
  --red: #e94a50;
  --green: #7dbb5c;
  --blue: #4fb3db;
  --orange: #fe7c0d;
  --yellow: #f2d533;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

#root {
  height: 100vh;
}

body {
  background-color: var(--gray-dark);
  color: var(--white);
  font-family: Helvetica, sans-serif;
}

.container {
  width: 100%;
  max-width: 60rem;
  margin: auto;
}

.flex {
  display: flex;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

.h-100 {
  height: 100%;
}