:root {
  --beige: #f4ead8;
  --beige-fonce: #f1dec1;
  --gris: #4d5052;
  --texte: #4d5052;
  --blanc: #ffffff;
--police-texte: "Segoe UI", Roboto, Arial, sans-serif;
--police-titre: "Segoe UI", Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--police-texte);
  background: var(--beige-fonce);
  color: var(--texte);
}

.navbar {
  display: flex;
  justify-content: space-between;
  background: var(--beige);
  align-items: center;
  gap: 40px;
  padding: 14px 8%;
  font-family: var(--police-titre);
  font-weight: bold;
  font-size: x-large;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  width: 100px;
  height: 100px;
  object-fit: contain;
}

.menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex: 1;
  gap: 24px;
}

.menu a {
  margin-left: 0;
  text-decoration: none;
  color: var(--gris);
  font-weight: bold;
  text-align: center;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 9px;
  border: 0;
  border-radius: 10px;
  background: var(--beige-fonce);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  margin: 4px 0;
  border-radius: 999px;
  background: var(--gris);
}

.hero {
  background: linear-gradient(135deg, #f4ead8, #d8c3a5);
  padding-bottom: 70px;
}

.intro {
  text-align: center;
  padding: 70px 20px;
}

.intro h1 {
  font-family: var(--police-titre);
  font-weight: bold;
  font-size: 4rem;
  margin: 0;
  color: var(--gris);
}

.intro p {
  font-size: 1.2rem;
}

.container {
  max-width: 1100px;
  width: 100%;
  margin: 50px auto;
  padding: 0 20px;
}

.container h2 {
  font-family: var(--police-titre);
  text-align: center;
  color: var(--gris);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.card {
  background: var(--beige);
  padding:  15px;
  border-radius: 18px;
  text-decoration: none;
  text-align: center;
  color: var(--texte);
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transition: 0.2s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  font-family: var(--police-titre);
  color: var(--gris);
  font-size: 1.5rem;
}

footer {
  text-align: center;
  padding: 25px;
  color: var(--gris);
}

.page-title {
  font-family: var(--police-titre);
  text-align: center;
  color: var(--gris);
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.page-subtitle {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.card span {
  display: inline-block;
  margin-top: 15px;
  font-weight: bold;
  color: var(--gris);
}

.chapitres {
  display: grid;
  gap: 20px;
}

.chapitre {
  background: var(--beige);
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
}


.chapitre h3 {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  gap: 12px;
  margin: 0;
  font-weight: bold;
  font-size: 1.05rem;
  color: var(--gris);
}

.chapitre h3::before {
  content: "";
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  background-image: url("../image/arbre.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.contenu-chapitre {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.bouton {
  display: inline-block;
  padding: 10px 15px;
  background: #4a3428;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transition: 0.2s;
}

.bouton:hover {
  transform: translateY(-5px);
}

.bouton.secondaire {
  background: #d8c3a5;
  color: #4a3428;
}

@media (max-width: 900px) {
  .navbar {
    gap: 28px;
    padding: 12px 5%;
  }

  .menu {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px 16px;
  }

  .intro {
    padding: 55px 20px;
  }

  .intro h1 {
    font-size: 3.2rem;
  }

  .container {
    margin: 40px auto;
  }
}

@media (max-width: 650px) {
  .navbar {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
    padding: 14px 20px;
    text-align: center;
  }

  .menu-toggle {
    display: inline-block;
  }

  .menu {
    display: none;
    width: 100%;
    flex: auto;
    flex-direction: column;
    justify-content: center;
    gap: 10px 14px;
  }

  .navbar.menu-open .menu {
    display: flex;
  }

  .menu a {
    font-size: 0.95rem;
  }

  .logo img {
    width: 34px;
    height: 34px;
  }

  .hero {
    padding-bottom: 35px;
  }

  .intro {
    padding: 42px 18px;
  }

  .intro h1 {
    font-size: 2.6rem;
  }

  .intro p {
    font-size: 1rem;
  }

  .page-title {
    font-size: 2.1rem;
    margin-top: 12px;
  }

  .container {
    margin: 32px auto;
    padding: 0 16px;
  }

  .cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .card {
    padding: 22px;
  }

  .chapitres {
    gap: 14px;
  }

  .chapitre {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px;
  }

  .contenu-chapitre {
    flex: 1 1 auto;
    flex-direction: column;
    width: 100%;
  }

  .bouton {
    display: block;
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .menu {
    flex-direction: column;
  }

  .intro h1 {
    font-size: 2.2rem;
  }

  .page-title {
    font-size: 1.9rem;
  }
}