html, body {
    height: 100%; 
    margin: 0;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-image: url('images/fond-musee.JPG');
    background-size: cover;       
    background-position: center;  
    background-attachment: fixed; 
    background-repeat: no-repeat;
}

main {
    flex: 1 0 auto;                     
    display: flex;
    justify-content: center;      
    align-items: center;         
}

h1 {
    color :#ffffff;
    text-align: center;
    margin-top: 20px;
}

nav {
    background-color:rgba(255, 255, 255, 0.672); 
    text-align: center;
    padding: 20px;
    width: 100%;
    flex-shrink: 0;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 1000; 
}

.navbar-brand.no-brand-bg,
nav .navbar-brand.no-brand-bg {
  background: transparent;
  padding: 0;
  border-radius: 0;
  color: black;
}

.navbar .nav-link,
nav a {
  background-color: rgb(208, 157, 38);
  color: rgb(255, 255, 255);
  margin: 0 6px;
  border-radius: 6px;
  padding: 10px 18px;
  display: inline-block;
  transition: background-color .15s, color .15s, box-shadow .15s;
  text-decoration: none;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
nav a:hover,
nav a:focus {
  background-color: rgb(136, 49, 49);
  color: rgb(255, 255, 255);
  box-shadow: 5px 5px 10px rgba(0,0,0,0.35);
}

.navbar .nav-link.active,
nav a.active {
  background-color: rgb(136, 49, 49);
  color: rgb(255, 255, 255);
  box-shadow: 5px 5px 10px black;  
  transition: 0.3s;
    color: white;
  font-size: 1.1em;
  font-weight: bold;
}

@media (max-width: 575.98px) {
  .navbar .nav-link,
  nav a {
    display: block;
    margin: 6px 0;
  }
}

.conteneur {
    display: flex;
}

#content {
    padding: 20px;
}

.conteneur-texte {
    background-color: rgba(0, 0, 0, 0.7); 
    color: white;                         
    padding: 20px;                        
    border-radius: 10px;
    display: inline-block;  
    text-align: center;              
    max-width: 80%;                       
    margin: 20px;                       
}

footer {
    background-color:rgba(255, 255, 255, 0.672); 
    text-align: center;
    padding: 20px;
    width: 100%;
    flex-shrink: 0;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 1000; 
}

.selector-for-some-widget {
  box-sizing: content-box;
}

.wrapper {
    background-color: whitesmoke;
    list-style-type: none;
    padding: 0;
    border-radius: 3px;
  }
  .form-row {
    display: flex;
    justify-content: flex-end;
    padding: .5em;
  }
  .form-row > label {
    padding: .5em 1em .5em 0;
    flex: 1;
  }
  .form-row > input {
    flex: 2;
  }
  .form-row > input,
  .form-row > button {
    padding: .5em;
  }
  .form-row > button {
   background: gray;
   color: white;
   border: 0;
  }

  form {
  display: grid;
  padding: 1em;
  background: #f9f9f9;
  border: 1px solid #c1c1c1;
  margin: 2rem auto 0 auto;
  max-width: 600px;
  padding: 1em;
}
form input {
  background: #fff;
  border: 1px solid #9c9c9c;
}
form button {
  background: lightgrey;
  padding: 0.7em;
  width: 100%;
  border: 0;
}
form button:hover {
  background: rgb(50, 50, 47);
}

label {
  padding: 0.5em 0.5em 0.5em 0;
}

input {
  padding: 0.7em;
  margin-bottom: 0.5rem;
}
input:focus {
  outline: 3px solid gold;
}

@media (min-width: 400px) {
  form {
    grid-template-columns: 200px 1fr;
    grid-gap: 16px;
  }

  label {
    text-align: right;
    grid-column: 1 / 2;
  }

  input,
  button {
    grid-column: 2 / 3;
  }
}

.image-wrapper {
    width: calc(33.33% - 20px); 
    min-width: 250px; 
    margin: 10px; 
    position: relative;
}


.image-wrapper img {
    width: 100%;
    height: 400px; 
    object-fit: cover;
    display: block;
}

.image-wrapper h3 {
    min-height: 3em; 
    text-align: center;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(
    0,
    0,
    0,
    0.7
  ); 
  color: white;
  display: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 20px;
}

.image-wrapper:hover .overlay {
  display: flex; 
  
}

.image-container {
  display: flex;
  flex-wrap: wrap; 
  justify-content: center; 
  background-color: #e7bab743;
  color: #161414c0;
  margin-top: 100px;
  margin-bottom: 100px;
  border-radius: 10px;
  border: 2px solid #ccc;
  padding: 10px;
  overflow: auto;
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  align-items: flex-start; 
  gap: 20px; 
  margin: 0 auto;
}

.container {
  background-color: #e7bab743;
  color: #161414c0;
  margin-top: 100px;
  margin-bottom: 100px;
  border-radius: 10px;
  border: 2px solid #ccc;
  padding: 20px;
  overflow: auto;
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
  width: 95%;
}

.text-with-image-container {
  display: flex;
  flex-direction: row;
  gap: 20px;
}


.container-synopsis .image-wrapper img {
    filter: grayscale(0%) !important;
}

.image-container .image-wrapper img {
    filter: grayscale(100%);
    transition: filter 0.3s ease-in-out;
}

.image-container .image-wrapper:hover img {
    filter: grayscale(0%);
}

@media screen and (max-width: 1280px) {
  .container {
    margin: 80px 50px 10px 50px;
  }
  .image-container {
    margin: 80px 50px 10px 50px;
  }

  .text-with-image-container {
    flex-direction: column;
  }

  .text-with-image-container-reverse {
    flex-direction: column;
  }

.text-with-image-container-reverse {
  display: flex;
  flex-direction: row-reverse;
  gap: 20px;
}
}