style.css

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

body {
  min-height: 100vh;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  font-family: Arial;
  background-color: #8EC5FC;
  background-image: linear-gradient(62deg, #8EC5FC 0%, #E0C3FC 100%);
}

header h1 {
  font-weight: normal;
  padding: 20px;
  letter-spacing: 0.1em;
}

main {
  
}

.tuto {
  margin: 20px auto;
}

.streak {
  font-size: 24px;
  margin: 20px auto;
  padding: 4px 8px;
  border-radius: 4px;
  background: black;
  color: white;
}

.card {
  width: 200px;
  height: 282px;
  background: white;
  margin: 20px auto;
  border-radius: 8px;
  border: solid 1px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 48px;
  transition: all 0.8s;
  transition-delay: -0.4s;
}

button {
  margin: 0 auto 20px;
  padding: 4px 8px;
  background: white;
  border: solid 1px;
  cursor: pointer;
  font-size: 18px;
}

button:hover {
  background: black;
  color: white;
  border-color: black;
}

footer {
  font-size: 14px;
  padding: 10px;
}

footer a {
  text-decoration: none;
  color: #666;
}

footer a:hover {
  text-decoration: underline;
  color: #000;
}