* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
}

body {
  padding: 0px;
  margin: 0;
  display: flex;
  flex-direction: column;  
  font-family: "Gothic A1", serif;
  overflow-x: hidden;
  max-width: 100vw;
}

/* Vidéo de fond, nommé image car c'était une image a la base*/

.background-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;  
  height: 100vh;  
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.background-image video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Text qui est par dessus la vidéo background */

.text-overlay {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  font-family: "Gothic A1", serif;
  font-weight: 200;
  font-style: normal;
  cursor: pointer;
  opacity: 0;
  animation: slideUp 0.7s ease-out forwards;
  max-width: 90vw;
  z-index: 100;
  box-sizing: border-box;
  padding: 0 20px;
}
  
.text-overlay h1 {
  font-size: clamp(60px, 8vw, 158px);
  margin: 0 0 10px;
  line-height: 1.1;
}
  
/* Bouton qui est par dessus la vidéo background, debug car l'id ne le centrais pas au milieu de la page*/
  
.btn-debug{
  border: 1px solid #ffffff;
  background-color: transparent;
  color: white;
  padding: 12px 25px;
  cursor: pointer;
  margin-top: 40px;
  margin-left: 0;
  font-size: clamp(12px, 1.5vw, 16px);
  white-space: nowrap;
  }
  
.btn-debug:hover {
  border-color: #d4d4d4;
  color: #d4d4d4;
}
  
/* Animation au lancement de la page, fait a l'aide de ChatGPT*/

@keyframes slideUp {
  0% {
    transform: translate(-50%, 50%);
    opacity: 0;
  }
  100% {
    transform: translate(-50%, -50%);
    opacity: 1;
  }
}

@keyframes slidein {
  0% {
    opacity: 0;
    transform: translateY(100%);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* header */

header {
  position: fixed; 
  width: 100%;
  padding: 15px 20px;
  margin-top: -10px;
  background: rgba(255, 255, 255, 0); 
  backdrop-filter: blur(0px);
  transition: transform 0.3s ease, opacity 0.3s ease, backdrop-filter 0.3s ease; 
  z-index: 1000; 
}

/* Animation , fait a l'aide de ChatGPT*/
.hidden {
  transform: translateY(-100%);
  opacity: 0;
}

.visible {
  background: rgba(56, 53, 53, 0.7);
  backdrop-filter: blur(20px);
  height: 40px; 
  transform: translateY(0);
}




header ul {
  position: absolute;
  display: flex;
  list-style: none;
  margin-top: 15px;
  margin-left: 240px;
  padding: 0;
  max-width: 90%;
  overflow: hidden;
  flex-wrap: wrap;
}
header ul li {
  margin: 0 90px;
  display: block;
}


header ul a {
  text-decoration: none;
  color: white;
  font-size: 18px;
  font-weight: lighter;
  margin-left: 100px;
  font-family: 'Montserrat', sans-serif;
  white-space: nowrap;
}

ul li a:hover {
color: grey; 
}

/* Section en dessous de l'aniamtion de la vidéo background; débug car 
Il y avait un probleme avec la marge du haut et du bas */

.debug-section{
  margin-top: 950px;
  background-color: #050505;
  width: auto;
  height: 1300px;
}

/* ID des sections */
  
#presentation-voiture {
  background-color: #050505;
  width: auto;
  height: 1300px;
  
}

/* Un deuxième overlay pour la vidéo*/

.txt-overlay {
  top: 165%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: white;
  font-family: "Gothic A1", serif;
  font-weight: 300;
  cursor: pointer;
  max-width: 90%;
  padding: 0 20px;
}

.txt-overlay h4 {
  font-size: clamp(24px, 4vw, 33px);
  margin: 0 0 10px;
}

/* Vidéo*/

.video-voiture {
  width: min(1660px, 90%);
  height: 880px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 140px;
  overflow: hidden;
  display: flex;
  align-items: center;
  cursor: pointer;
  max-width: 90%;
}

.video-voiture video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}



/* ID pour tout les h3 et p*/

#h3-presentation{
  color: white;
  font-family: 'Montserrat', sans-serif;
  font-weight: 300; 
  font-size: clamp(28px, 4vw, 42px);
  text-align: center;
  font-style:inherit;
  font-weight: bold;
  padding: 0 20px;
}

#p-bugatti{
  font-family: 'Montserrat', sans-serif;
  color: white;
  font-size: clamp(14px, 2vw, 18px);
  text-align: center;
  font-weight: 50; 
  margin-top: -20px;
  padding: 0 20px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* balise ul nommé brand*/

.brand {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 35px;
  flex-wrap: wrap;
  padding: 0 20px;
}

.photo-brand {
  position: relative;
  display: flex;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  width: min(520px, 100%);
  height: 715px;
  max-width: 520px;
  flex: 1 1 300px;
}


.photo-brand img {
  display: block;
  width: 100%;
  height: 100%; 
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
  filter:brightness(70%) ;

}

.photo-brand:hover img {
  transform: scale(1.05);
}

.maison-name {
  text-align: center;
  font-weight: 500;
  font-size: clamp(20px, 3vw, 30px);
  color: rgb(255, 255, 255);
  position: absolute;
  top: 35px;
  padding: 0 10px;
}

#btn-presentation {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  padding: 14px 40px;
  width: 80%;
  font-size: 12px;
}


#btn-presentation:hover {
  border-color: #d4d4d4;
  color: #d4d4d4;
}

/* Section voiture Luxe avec elle aussi des balsies ul*/

.voiture-luxe{
  margin-top: -150px;
  min-height: 2650px;
}

.collection {
  display: flex;
  gap: 34px;
  margin-right: 60px;
  margin-top: 40px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 20px;
}

#photo-collection {
  position: relative;
  overflow: hidden;
  flex: 1 1 300px;
  max-width: 600px;
}

#photo-collection img {  
  height: 720px;
  width: auto;
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
  cursor: pointer;
}

#photo-collection:hover img {
  transform: scale(1.05);
}

.brand-name {
  font-family: "Allura", serif;
  font-weight: 400;
  font-size: clamp(40px, 6vw, 100px);
  color: white;
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}



#btn-collection {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 600px;
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  padding: 12px 0;
  cursor: pointer;
  font-size: 14px;
  text-align: center;
  white-space: nowrap;
}

#btn-collection:hover {
  border-color: #d4d4d4;
  color: #d4d4d4;
}

/* Un rectangle gris foncé, par dessus la section*/

.rectangle {
  background-color: #161515;
  display: flex; 
  align-items: center; 
  margin-top: 20px;
  margin-left: auto;
  margin-right: auto;
  max-width: min(1740px, 90%);
  width: 90%;
}

.rectangle img {
  width: auto;
  height: 850px;
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
  cursor: pointer;
}


.text-content {
  display: flex;
  flex-direction: column; 
  justify-content: center;
  align-items: center;
  margin-left: 20px; 
}

.h3-rec {
  color: white;
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: bold;
  text-align: center;
  margin-bottom: 10px; 
}

.p-rec {
  font-size: clamp(14px, 2vw, 18px);
  color: white;
  font-family: 'Montserrat', sans-serif;
  text-align: center;
}



#btn-transparent{
  border: 1px solid #ffffff;
  background-color: transparent;
  color: white;
  padding: 12px 25px;
  cursor: pointer;
  margin-top: 40px;
}

#btn-transparent:hover{
  border-color: #d4d4d4;
  color: #d4d4d4;
}

header .text-overlay{
  margin-left: 250px ;
}

/*Footer du site */

footer {
  background-color: #0c0c0c ;
  color: #f0f5f9;
  padding: 2rem;      
  clear: both; 
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

#footer-section {
  flex: 1 1 200px;
  min-width: 200px;
}

#footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

#footer-section ul {
  list-style-type: none;
  padding: 0;
}

#footer-section ul li {
  margin-bottom: 0.5rem;
}

.social-icons {
  display: flex;
  flex-wrap: wrap;
}

.social-icons a {
  margin-right: 1rem;
}

/* ========================================
   RESPONSIVE DESIGN - MEDIA QUERIES
   ======================================== */

/* Tablettes et écrans moyens (max-width: 1024px) */
@media screen and (max-width: 1024px) {
  html, body {
    overflow-x: hidden;
    max-width: 100vw;
  }
  /* Header */
  header {
    padding: 10px 15px;
    width: 100%;
    max-width: 100vw;
  }
  
  header ul {
    margin-left: 20px;
    max-width: 95%;
    justify-content: center;
    position: relative;
  }
  
  header ul li {
    margin: 0 25px;
  }
  
  header ul a {
    font-size: 16px;
    margin-left: 0;
  }
  
  /* Section hero */
  .text-overlay {
    left: 50%;
    top: 35%;
    transform: translate(-50%, -50%);
    max-width: 95vw;
    width: 95%;
  }
  
  .text-overlay h1 {
    font-size: 120px;
  }
  
  .btn-debug {
    margin-left: 0;
    padding: 10px 20px;
  }
  
  /* Vidéo actualités */
  .video-voiture {
    width: 90%;
    height: 600px;
    margin-left: 5%;
  }
  
  .txt-overlay {
    left: 50%;
    margin-left: 0;
    top: 130%;
    transform: translateX(-50%);
    max-width: 95vw;
    width: 95%;
  }
  
  /* Galeries */
  .brand {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  
  .photo-brand {
    width: 80%;
    max-width: 600px;
    height: 500px;
  }
  
  .collection {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  #photo-collection img {
    height: 500px;
  }
  
  /* Rectangle */
  .rectangle {
    flex-direction: column;
    margin-left: 20px;
    max-width: 95%;
  }
  
  .rectangle img {
    width: 100%;
    height: 400px;
  }
  
  /* Footer tablette */
  footer {
    padding: 1.5rem 1rem;
  }
  
  .footer-content {
    gap: 1.2rem;
  }
  
  #footer-section {
    flex: 1 1 180px;
    min-width: 160px;
  }
  
  #footer-section h3 {
    font-size: 1rem;
    margin-bottom: 0.7rem;
  }
  
  #footer-section ul li {
    font-size: 0.8rem;
    margin-bottom: 0.3rem;
  }
  
  .social-icons {
    gap: 1rem;
  }
  
  .social-icons a i {
    font-size: 1.5rem;
  }
}

  /* Mobiles (max-width: 768px) */
@media screen and (max-width: 768px) {
  html, body {
    overflow-x: hidden;
    max-width: 100vw;
  }
  /* Header mobile */
  header {
    padding: 8px 10px;
    height: auto;
  }
  
  header ul {
    margin-left: 0;
    margin-top: 5px;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    width: 100%;
    max-width: 100%;
  }
  
  header ul li {
    margin: 3px 10px;
    flex-shrink: 0;
  }
  
  header ul a {
    font-size: 13px;
    margin-left: 0;
    padding: 5px 8px;
  }  /* Section hero mobile */
  .text-overlay {
    left: 50%;
    top: 30%;
    width: 95%;
    max-width: 95vw;
    transform: translate(-50%, -50%);
    padding: 0 10px;
  }
  
  .text-overlay h1 {
    font-size: 60px;
    line-height: 1.1;
  }
  
  .btn-debug {
    font-size: 12px;
    padding: 8px 16px;
    margin-left: 0;
  }
  
  /* Sections */
  .debug-section {
    margin-top: 100vh;
    height: auto;
    padding-bottom: 50px;
  }
  
  #presentation-voiture {
    height: auto;
    padding: 20px 0;
  }
  
  /* Textes */
  #h3-presentation {
    font-size: 28px;
    padding: 0 20px;
  }
  
  #p-bugatti {
    font-size: 16px;
    padding: 0 20px;
  }
  
  /* Vidéo actualités mobile */
  .video-voiture {
    width: 95%;
    height: 250px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 50px;
  }
  
  .txt-overlay {
    position: relative;
    margin-left: auto;
    margin-right: auto;
    left: auto;
    transform: none;
    top: 0;
    padding: 20px;
    text-align: center;
  }
  
  .txt-overlay h4 {
    font-size: 24px;
  }
  
  .txt-overlay p {
    font-size: 14px;
  }
  
  /* Galeries mobile */
  .brand {
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 0 20px;
  }
  
  .photo-brand {
    width: 100%;
    height: 400px;
  }
  
  .maison-name {
    font-size: 20px;
    top: 20px;
  }
  
  #btn-presentation {
    font-size: 10px;
    padding: 10px 20px;
  }
  
  /* Collection mobile */
  .collection {
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-right: 0;
    padding: 0 20px;
  }
  
  #photo-collection {
    width: 100%;
  }
  
  #photo-collection img {
    height: 400px;
    width: 100%;
  }
  
  .brand-name {
    font-size: 60px;
    top: -20px;
  }
  
  #btn-collection {
    font-size: 12px;
    padding: 10px 0;
  }
  
  /* Section luxe */
  .voiture-luxe {
    margin-top: 0;
    min-height: auto;
    padding-bottom: 50px;
  }
  
  /* Rectangle mobile */
  .rectangle {
    flex-direction: column;
    margin-left: 10px;
    margin-right: 10px;
    max-width: 95%;
  }
  
  .rectangle img {
    width: 100%;
    height: 250px;
  }
  
  .text-content {
    margin-left: 0;
    padding: 20px;
  }
  
  .h3-rec {
    font-size: 22px;
  }
  
  .p-rec {
    font-size: 14px;
  }
  
  #btn-transparent {
    padding: 10px 20px;
    font-size: 12px;
  }
  
  /* Footer mobile */
  footer {
    padding: 1rem 0.5rem;
  }
  
  .footer-content {
    gap: 0.8rem;
    justify-content: space-around;
  }
  
  #footer-section {
    flex: 1 1 150px;
    min-width: 120px;
  }
  
  #footer-section h3 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
  }
  
  #footer-section ul li {
    font-size: 0.7rem;
    margin-bottom: 0.2rem;
  }
  
  .social-icons {
    justify-content: center;
    gap: 0.8rem;
  }
  
  .social-icons a i {
    font-size: 1.2rem;
  }
}

/* Très petits écrans (max-width: 480px) */
@media screen and (max-width: 480px) {
  .text-overlay h1 {
    font-size: 40px;
  }
  
  .btn-debug {
    font-size: 11px;
    padding: 6px 12px;
  }
  
  #h3-presentation {
    font-size: 24px;
  }
  
  .txt-overlay h4 {
    font-size: 20px;
  }
  
  .brand-name {
    font-size: 40px;
  }
  
  .maison-name {
    font-size: 16px;
  }
  
  .h3-rec {
    font-size: 18px;
  }
}

/* Écrans très larges (min-width: 1920px) */
@media screen and (min-width: 1920px) {
  .text-overlay {
    left: 50%;
    transform: translate(-50%, -50%);
  }
  
  header ul {
    margin-left: 300px;
  }
  
  .txt-overlay {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .video-voiture {
    width: 1800px;
    margin-left: 60px;
  }
  
  .rectangle {
    margin-left: 90px;
    max-width: 1800px;
  }
}