header {
  height: 350px;
}

.titre-header {
  position: absolute;
  top: 45%;
  left: 67%;
  text-align: center;
}

.titre-header h1 {
  font-size: 4rem;
}

/* main section a prospos */

.blog-intro {
  background-color: #fce4da;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  margin: auto;
  padding: 80px 0;
}
.blog-intro h2,
.blog-intro p {
  width: 70%;
  margin: 10px auto;
  color: #3a5151;
}

.blog-intro p {
  font-size: 16px;
  line-height: 1.8;
}
.blog-intro h2 {
  font-size: 32px;
}
.blog-titre {
  text-align: center;
  font-size: 32px;
  color: #3a5151;
  margin: 50px auto;
}
.blog-section {
  padding: 100px;
  width: 70%;
  margin: 50px auto;
  display: flex;
  justify-content: center;
  gap: 100px;
}
.blog-text {
  width: 100%;
}
.blog-text h2 {
  color: #3a5151;
  font-size: 32px;
}
.blog-text h3 {
  color: #3a5151;
  font-size: 22px;
}
.blog-text p {
  color: #3a5151;
  font-size: 16px;
  line-height: 1.8;
}

.blog-section-video {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 315px;
  margin: auto;
}
.blog-section-video iframe {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  box-shadow: 0px 8px 14px 4px #00000017;
  transition: 0.3s;
}
.blog-section-video iframe:hover {
  transition: 0.3s;
  box-shadow: 0px 8px 14px 4px rgba(0, 0, 0, 0.2);
}
.blog-video-supp {
  border-top: 1px solid #fce4da;
  padding: 0;
  margin: auto;
}
.video {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  flex-wrap: wrap;
  gap: 20px;
  margin: 50px auto;
  width: 100%;
}

.video iframe {
  width: 100%;
  aspect-ratio: 16 / 9; /* CSS moderne pour ratio 16:9 */
  box-shadow: 0px 8px 14px 4px #00000017;
  border-radius: 8px;
  transition: 0.3s;
}

.video iframe:hover {
  box-shadow: 0px 8px 14px 4px rgba(0, 0, 0, 0.2);
  transition: 0.3s;
}

@media (max-width: 1440px) {
  .video {
    grid-template-columns: 1fr 1fr;
  }
  .blog-section {
    flex-direction: column;
  }
  .blog-section-video {
    height: 515px;
  }
}
@media (max-width: 1240px) {
}
@media (max-width: 1024px) {
  .video {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .titre-header h1 {
    font-size: 28px;
  }
  .blog-intro h2,
  .blog-titre {
    font-size: 28px;
  }
  .blog-text h2 {
    font-size: 24px;
  }
  .blog-section-video {
    height: 315px;
  }
  .blog-section {
    padding: 0px;
    width: 85%;
  }
  .fa-chevron-down {
    display: none;
  }
}
@media (max-width: 550px) {
  .titre-header h1 {
    font-size: 22px;
  }
  .titre-header {
    position: absolute;
    top: 55%;
    left: 60% !important;
  }
}
@media (max-width: 425px) {
  .titre-header h1 {
    font-size: 18px;
  }
  .titre-header {
    position: absolute;
    top: 55%;
    left: 60% !important;
  }
  .blog-intro h2,
  .blog-titre {
    font-size: 26px;
  }
  .blog-text h2 {
    font-size: 22px;
  }
  .blog-intro p {
    width: 85%;
  }
}
@media (max-width: 320px) {
  .blog-intro h2,
  .blog-titre {
    font-size: 24px;
  }
  .blog-text h2 {
    font-size: 18px;
  }
}