* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: #f0f2f5;
  color: #333;
}

header {
  background-color: #111;
  color: #fff;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 999;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

nav h1 {
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #ff4500;
}

.hero {
  background: url('https://images.unsplash.com/photo-1607619056574-29d25a07dfaf?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: white;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.hero .overlay {
  background-color: rgba(0, 0, 0, 0.6);
  padding: 4rem;
  border-radius: 10px;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.btn {
  background: #ff3c00;
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}

.btn:hover {
  background: #e03500;
}

.content {
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  width: 100%;
}

.bike-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.bike-card {
  background: white;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  text-align: center;
}

.bike-card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 1rem;
}

footer {
  background-color: #111;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
  }

  .hero .overlay {
    padding: 2rem;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}