body, html {
  margin: 0; 
  padding: 0; 
  height: 100%;
  font-family: 'Poppins', sans-serif;
  color: #fff;
  background: url('background.jpg') no-repeat center center fixed;
  background-size: cover;
}

/* Header avec logo */
.header {
  position: absolute;
  top: 15px;
  left: 20px;
  z-index: 1000;
}

.logo {
  height: 60px;
  width: auto;
  max-width: 120px;
}

/* Overlay principale */
.overlay {
  background-color: rgba(0, 0, 50, 0.6);
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 20px;
}

h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 6px rgba(0,0,0,0.6);
  font-weight: 700;
}

h1 .by {
  display: block;        
  font-size: 1.2rem;     
  font-weight: 600;      
  text-transform: uppercase;
  color: #ffd700;        
  margin-top: 5px;       
  letter-spacing: 1px;
}

p {
  font-size: 1.3rem;
  max-width: 700px;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.features {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.feature {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 20px;
  width: 250px;
  transition: background 0.3s ease, transform 0.2s ease;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.feature:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-8px);
}

.feature i {
  margin-bottom: 15px;
  color: #ffd700;
}

.feature h3 {
  margin: 0 0 10px 0;
  font-size: 1.3rem;
}

.feature p {
  font-size: 1rem;
  color: #ddd;
}

/* Galerie */
.gallery {
  margin: 50px 0;
}
.gallery h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 15px;
}
.gallery-grid img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
  transition: transform 0.3s ease;
}
.gallery-grid img:hover {
  transform: scale(1.05);
}

/* Contact */
.contact {
  margin: 60px 0 40px 0;
  max-width: 600px;
  width: 100%;
}
.contact h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}
.contact p {
  margin-bottom: 20px;
}
.contact form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.contact input, 
.contact textarea {
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
}
.contact button {
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: #ffd700;
  color: #000;
  font-weight: bold;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.3s;
}
.contact button:hover {
  background: #e6c200;
}

footer {
  margin-top: 30px;
  font-size: 0.9rem;
  color: #bbb;
}