/* RESET DE BASE + BODY */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}
html, body { height: 100%; }
body {
  color: white;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  min-height: 100vh;
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow-x: hidden;
  padding-top: 100px;
  padding-bottom: 50px;
  font-size: 16px;
}

.hero-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
}

.header {
  padding: 20px;
}
.logo {
  height: 100px;
  max-width: 80vw;
  background-color: transparent;
  transition: none;
  display: block;
  margin: 0 auto;
}
img:hover { filter: none; }

.retour-button {
  display: inline-block;
  margin: 30px 0 0 0;
  padding: 10px 20px;
  background-color: #006A80;
  color: white;
  border: none;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  font-size: 20px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}
.retour-button:hover { background-color: #004f60; }

.title h1 {
  font-size: 36px;
  font-weight: bold;
  margin: 20px auto;
  max-width: 600px;
}

.content-wrapper {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: left;
}
section {
  background-color: rgba(255,255,255,0.07);
  border-radius: 20px;
  margin-bottom: 30px;
  padding: 30px 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.13);
}
.intro, .engagement, .qui-sommes-nous, .valeurs {
  margin-bottom: 25px;
}
.intro h2, .engagement h2, .qui-sommes-nous h2, .valeurs h2 {
  color: #fff;
  font-size: 26px;
  margin-bottom: 15px;
}
.intro p, .engagement ul, .engagement p, .qui-sommes-nous p, .qui-sommes-nous ul, .valeurs ul {
  color: #f0f0f0;
  font-size: 24px;
  line-height: 1.6;
}
ul { margin-left: 20px; }
li { margin-bottom: 8px; }

/* Animation fade-in */
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeInUp 1s ease forwards; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 1100px) {
  body { font-size: 15px; padding-top: 70px; }
  .header { padding: 10px; }
  .title h1 { font-size: 24px; }
  .content-wrapper { padding: 10 6vw; }
  section { padding: 20px 8px; }
  .retour-button { font-size: 28px;}
  li { margin-bottom: 8px; }
  ul {
  list-style-type: none;}

}
@media (max-width: 500px) {
  .logo { height: 40px; max-width: 90vw; }
  .title h1 { font-size: 18px; }
  
}