*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Arial, sans-serif;
}

body{
  background:#f6f2eb;
  color:#1f252b;
}

header{
  background:white;
  padding:18px 8%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 2px 10px rgba(0,0,0,0.08);
}

.logo{
  font-weight:900;
  font-size:22px;
  color:#222;
}

nav a{
  color:#222;
  text-decoration:none;
  margin-left:22px;
  font-weight:bold;
}

nav a:hover{
  color:#c71f25;
}

.hero{
  min-height:88vh;
  background:
    linear-gradient(90deg, rgba(246,242,235,0.96) 0%, rgba(246,242,235,0.80) 42%, rgba(246,242,235,0.20) 100%),
    url("images/hero.jpg");
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:center;
  padding:0 8%;
}

.hero-content{
  max-width:650px;
}

.subtitle{
  color:#c71f25;
  font-weight:bold;
  text-transform:uppercase;
  letter-spacing:1px;
  margin-bottom:18px;
}

.hero h1{
  font-size:64px;
  line-height:1;
  margin-bottom:25px;
  color:#222;
}

.hero p{
  font-size:21px;
  line-height:1.6;
  margin-bottom:28px;
}

.hero-buttons{
  display:flex;
  gap:15px;
  flex-wrap:wrap;
}

.btn,
.btn-secondary,
.btn-appel{
  display:inline-block;
  text-decoration:none;
  padding:16px 25px;
  border-radius:50px;
  font-weight:bold;
}

.btn{
  background:#c71f25;
  color:white;
}

.btn-secondary{
  background:#222;
  color:white;
}

section{
  padding:80px 8%;
}

h2{
  text-align:center;
  font-size:42px;
  margin-bottom:45px;
}

.cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:25px;
}

.card{
  background:white;
  border-radius:18px;
  overflow:hidden;
  box-shadow:0 8px 25px rgba(0,0,0,0.10);
  transition:0.3s;
}

.card:hover{
  transform:translateY(-6px);
}

.card img{
  width:100%;
  height:230px;
  object-fit:cover;
}

.card h3{
  padding:22px 22px 8px;
  font-size:24px;
}

.card p{
  padding:0 22px 25px;
  line-height:1.6;
}

.histoire{
  background:white;
  text-align:center;
}

.histoire p{
  max-width:900px;
  margin:15px auto;
  font-size:19px;
  line-height:1.7;
}

.devis{
  background:#f6f2eb;
  text-align:center;
}

.devis-form{
  max-width:720px;
  margin:auto;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.devis-form input,
.devis-form select,
.devis-form textarea{
  padding:17px;
  border:1px solid #ddd;
  border-radius:10px;
  font-size:16px;
}

.devis-form button{
  background:#c71f25;
  color:white;
  border:none;
  padding:18px;
  border-radius:50px;
  font-size:18px;
  font-weight:bold;
  cursor:pointer;
}

.appel{
  margin-top:45px;
}

.btn-appel{
  margin-top:18px;
  background:#222;
  color:white;
  font-size:20px;
}

.contact{
  background:#222;
  color:white;
  text-align:center;
}

.contact p{
  margin:14px 0;
  font-size:18px;
}

footer{
  background:#111;
  color:white;
  text-align:center;
  padding:25px;
}

@media(max-width:900px){
  header{
    flex-direction:column;
  }

  nav{
    margin-top:15px;
    text-align:center;
  }

  nav a{
    display:inline-block;
    margin:8px;
  }

  .hero{
    min-height:80vh;
    background:
      linear-gradient(rgba(246,242,235,0.92), rgba(246,242,235,0.92)),
      url("images/hero.jpg");
    background-size:cover;
    background-position:center;
  }

  .hero h1{
    font-size:42px;
  }

  .hero p{
    font-size:18px;
  }

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

.logo img{
  height:60px;
  width:auto;
}

.avis{
  background:white;
  text-align:center;
}

.avis-list{
  display:flex;
  flex-direction:column;
  gap:25px;
  margin-top:40px;
}

.avis-card{
  background:#f6f2eb;
  border-radius:20px;
  padding:25px;
  display:flex;
  align-items:center;
  gap:25px;
  text-align:left;
  box-shadow:0 8px 25px rgba(0,0,0,0.10);
}

.avis-card img{
  width:170px;
  height:170px;
  object-fit:cover;
  border-radius:15px;
  flex-shrink:0;
}

.avis-content{
  flex:1;
}

.stars{
  color:#c71f25;
  font-size:28px;
  font-weight:bold;
  margin-bottom:10px;
  letter-spacing:4px;
}

.avis-card p{
  line-height:1.6;
  font-size:18px;
  margin-bottom:15px;
}

.avis-card span{
  font-weight:bold;
  color:#555;
  font-size:20px;
}

@media(max-width:900px){
  .avis-card{
    flex-direction:column;
    text-align:center;
  }
}