body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #0e0e0e;
  color: #f5f5f5;
}
header {
  background-color: #111;
  padding: 20px;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1000;
}
nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
  transition: 0.3s;
}
nav a:hover {
  color: orange;
}
.hero {
  position: relative;
  height: 100vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1;
}
.hero-text {
  z-index: 2;
  position: relative;
}
.title-orange {
  font-size: 3em;
  color: orange;
  margin: 0;
}
.subtitle {
  font-size: 1.5em;
  margin: 10px 0 20px;
}
.join-btn {
  padding: 12px 24px;
  background-color: orange;
  color: black;
  font-weight: bold;
  text-decoration: none;
  border-radius: 5px;
}
.gallery {
  padding: 40px;
  display: flex;
  justify-content: center;
  gap: 20px;
  background-color: #1b1b1b;
}
.gallery img {
  width: 30%;
  border-radius: 10px;
}