@charset "UTF-8";
/* CSS Document */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f7fafc;
  color: #1a202c;
  line-height: 1.8;
}
header {
  background-color: #2d3748;
  color: #fff;
  text-align: center;
  padding: 40px 20px 20px;
}
header a {
    color: white
}
header h1 {
  margin: 0;
  font-size: 28px;
}
header p {
  margin: 5px 0;
}
.tel-fixed {
position: relative;
  background: #e53e3e;
  color: #fff;
  padding: 12px 18px;
  border-radius: 30px;
  font-weight: bold;
  animation: blink 1.5s infinite;
  z-index: 1000;
  max-width: max-content;
  margin: 0 auto;
}
@keyframes blink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.5;
  }
}
.tel-fixed a {
  color: white;
  text-decoration: none;
  font-size: 18px;
}
nav {
  background: #4a5568;
  text-align: center;
  padding: 15px;
}
nav a {
  color: white;
  margin: 0 20px;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  color: #fbd38d;
}
.photo {
  width: 100%;
  height: 260px;
  background: url('renovation-toiture-charpente-valpuiseaux.jpg') center/cover no-repeat;
  border-bottom: 3px solid #2d3748;
}
.content {
  max-width: 950px;
  margin: 40px auto;
  padding: 0 20px;
}
.content p {
  margin-bottom: 14px;
  text-align: justify;
}
footer {
  background: #2d3748;
  color: white;
  padding: 20px;
  text-align: center;
  margin-top: 40px;
}
img {
   max-width: 950px;
  width: 100%;
  display: block; 
}
@media (max-width: 768px) {
  .tel-fixed {
    top: auto;
    bottom: 20px;
    right: 20px;
  }
  .photo {
    height: 180px;
  }
}