* {
  font-family: Arial, Helvetica, sans-serif;
}


body {
  display: grid;
  align-items: center;
  justify-items: center;
  min-height: 100vh;
  background:linear-gradient(to left, #d9ecf2, #1AA6B7);
  color: #dfe4ea;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  text-align: center;
}

.bandeau {
  width: 750px;
  height: 150px;
  background-color:#FF414D;
  text-align: center;
  padding: 10px;
  border-radius: 10px;
  border: solid 2px  #FF414D;
  box-shadow: 5px 5px 5px 0px rgb(0,0,0,0.5);
}


/* titre de la leçon */
h1 {
  font-size: 2rem;
  width: 90%;
  color: white;
  border: solid 2px  #FF414D;
  border-radius: 10px;
  padding: 15px;
  background-color:#F56A79;
  text-align: center;
  line-height: 40px; /*valeur égale à height pour centrer verticalement le texte */
  box-shadow: 5px 5px 5px 0px rgb(0,0,0,0.5);
}
h1::first-letter, body h1 i {
  color: rgba(15, 5, 103, 0.6);
  font-size: 4rem;
  font-style: italic;
  font-weight: 900;
}

/* les questions */
h2 {
  font-size: 25px;
  width: 550px;
  height: auto;
  background-color: #D9ECF2;
  color: #1AA6B7;
  border: solid 2px #1AA6B7;
  border-radius: 10px;
  text-align: center;
  margin-top: 50px;
  padding-left: 20px;
  line-height: 40px; /*valeur égale à height pour centrer verticalement le texte */

}

/* le score */
h3 {
  color: #1AA6B7;
  font-size: 1.5rem;

}

body .container .choices {
  display: flex;
  flex-wrap: wrap;
  margin: 3rem auto 3rem;
  width: 500px;
}
body .container .choices button {
  flex: 1 0 45%;
  width: 200px;
  height: 80px;
  background-color: #D9ECF2;
  color: #1AA6B7;
  border: solid 2px #1AA6B7;
  border-radius: 10px;
  cursor: pointer;
  margin: 0.4rem;
  outline: none;
  user-select: none;
  font-weight: 600;
}
body .container .choices button:hover {
  background: #1AA6B7;
  color: white;
  transition: 0.5s;
}
body .container .choices button:active {
  transform: scale(0.9);
  transition: transform 0.1s;
}
body .container .choices button {
  font-size: 1.3rem;
}
body #progress {
  font-size: 1.3rem;
  color: #1AA6B7;
  background-color: white;
  border: solid 2px #1AA6B7;
  border-radius: 20px;
}