index.css

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

a {
  text-decoration: none;
}

html {
  /*variáveis*/
  --bg-color: #EDF2FF;
  --text-color: #00082F;
  --primary-color: #4264ebe7;
  --primary-color-dark: #364FC7; 
}

body.dark-blue {
  --bg-color: #00082F;
  --text-color: #FFFFFF;
}

/* pinkColor refs{
  --bg-color: #FFF0F6;
  --text-color: #1F000B;
  --primary-color: #D6336C;
  --primary-color-dark: #A61E4D;
} */

body {
  /* background: var(--bg-color); */
  background-image: url('./images/maratonaExplorer2.0-1920x1080.png');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  height: 100vh;
}

.container01 {
  text-align: center;
  width: 250px;
  margin: auto;
  margin-top: 40px;
}

.container02 {
  margin: auto;
  margin-top: 10px;
  width: 250px;
  text-align: center;
}

/* img {
  width: 100%; 
} */

img.avatar {
  border-radius: 50%;
  width: 100px;
  height: 100px;
  padding: 3.7px;
  border: #4264ebe7 dotted 2px;
}

h1 {
  font-size: 30px;
  margin-top: 20px;
  margin-bottom: 8px;
}

h3 {
  font-size: 26px;
  margin-top: 10px;
  margin-bottom: 5px;
}

.username {
  font-family: 'Roboto Mono', monospace;
  font-weight: 600;
  opacity: 0.8;
  font-size: 18px;
}

ul {
  list-style: none;
}

ul li a {
  height: 53px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color); /* hex: 0 - F */
  color: white;
  /* text-transform: uppercase; */
  font-size: 14px;

  margin-bottom: 10px;
  border-radius: 6px;

  transition: background 400ms;
}

/* pseudo-class */
ul li a:hover {
  background: #d6336ce7;
}

footer {
  font-weight: 500;
  font-size: 12px;
  margin-top: 70px;
  opacity: 0.6;
  transition: opacity 400ms;
}

footer:hover {
  opacity: 1;
}

footer a{
  color: var(--text-color);
}