* {
  padding: 0;
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.hero {
  padding-top: 1rem;
  position: relative;
}
/* Bar de Navigation */
.navigation {
  padding-left: 10rem;
  padding-right: 10rem;
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}
.navigation ul {
  display: flex;
  justify-content: space-around;
  list-style: none;
  align-items: center;
}
.navigation ul li {
  padding: 20px;
}
.navigation ul li a {
  text-decoration: none;
  color: rgb(0, 0, 0);
}
.logo {
  height: 70px;
  width: 70px;
}
.navigation ul button {
  padding: 5px 20px;
  border-radius: 5px;
  margin-left: 2rem;
  background-color: red;
  color: #fff;
  border-color: rgba(255, 0, 0, 0);
}
.navigation ul li a:hover {
  color: red;
}
.navigation ul button:hover {
  background-color: rgb(1, 1, 28);
  color: #fff;
  transition: 0.5s;
}

/* Professeur */

.prof {
  display: block;
  text-align: center;
  padding: 2rem;
  font-size: 2rem;
  font-weight: 700;
  background-color: #f4f4f4;
  color: red;
}
.list_prof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 2rem 10rem 2rem 10rem;
}
.profe {
  height: 420px;
  display: flex;
  flex-direction: column;
  padding: 10px;
}
.profe button a {
  text-decoration: none;
  color: #fff;
  font-size: 15px;
}
.profe button {
  padding: 5px;
  background-color: red;
  border-color: rgba(255, 0, 0, 0);
  margin-top: 5px;
}

.profe button:hover {
  background-color: #01011c;
  transition: 0.5s;
}

.profe img {
  width: 100%;
  height: 270px;
  object-fit: cover;
  object-position: top;
  border-top-right-radius: 10px;
  border-top-left-radius: 10px;
}
.formulaire_prof {
  margin-left: 10rem;
  margin-right: 10rem;
  margin-bottom: 2rem;
  margin-top: 2rem;
}
.formulaire_prof .message .text {
  text-align: left;
}
.formulaire_prof .message {
  margin-bottom: 10px;
}
.formulaire_prof .text_entrez {
  height: 50px;
  width: 100%;
  margin: 10px 0;
}
.formulaire_prof .text_entrez input {
  width: 100%;
  height: 100%;
  background: #f4f4f4;
  border: none;
  border-radius: 5px;
  padding-left: 10px;
}
.formulaire_prof .texte {
  width: 100%;
  height: 100px;
  margin-bottom: 20px;
}
.formulaire_prof .texte textarea {
  width: 100%;
  height: 100%;
  background: #f4f4f4;
  border: none;
  border-radius: 5px;
  resize: none;
  padding-left: 10px;
  padding-top: 10px;
}
.formulaire_prof .btn input {
  padding: 5px 20px;
  border-radius: 5px;
  background-color: red;
  color: #fff;
  border-color: rgba(255, 0, 0, 0);
}
.formulaire_prof .btn input:hover {
  background-color: rgb(1, 1, 28);
  color: #fff;
  transition: 0.5s;
}

/* footer */
.pied {
  padding: 2rem 10rem 2rem 10rem;
  display: flex;
  justify-content: space-between;
  background-color: #01011c;
}
.pied div h1 {
  font-size: 30px;
  color: #ffffff;
}
.info ul li a,
li,
h3 {
  text-decoration: none;
  color: #ffffff;
}
.tag {
  border-top: 1px #ffff solid;
  padding: 20px;
  background-color: #01011c;
}
.tag p {
  text-align: center;
  color: #ffffff;
}