* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
  background-image: url("back.jpg");
  background-size: 100% 100%;
}

.navbar {
  background: #1f2937;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
}

.navbar .logo {
  font-weight: bold;
  font-size: 1.3rem;
}

.navbar ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.navbar a {
  color: white;
  text-decoration: none;
  transition: color 0.2s;
}

.navbar a:hover {
  color: #facc15;
}

.hero {
  background: url('https://source.unsplash.com/1600x900/?construction-site,crane') center/cover no-repeat;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
  padding: 0 1rem;
}

.hero-content {
  background: rgba(0, 0, 0, 0.55);
  padding: 2rem;
  border-radius: 12px;
  max-width: 700px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.hero button {
  background: #facc15;
  color: #1f2937;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s;
}

.hero button:hover {
  background: #fbbf24;
}

.section {
  padding: 5rem 2rem;
  text-align: center;
}

.section h2 {
  font-size: 2rem;
  color: white;
  margin-bottom: 1.5rem;
}

#contact{
   color: white;
}

#about{
  color: white;
}

.about p, .about h2 {
  max-width: 800px;
  margin: 0 auto;
  color: white;
}

.service-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: #f3f4f6;
  padding: 1.5rem;
  border-radius: 10px;
  width: 250px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.project-card img {
  width: 100%;
  border-radius: 10px;
}

.contact button {
  background: #1f2937;
  color: #fff;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  margin-top: 1rem;
  transition: background 0.3s;
}

.contact button:hover {
  background: #111827;
}

footer {
  background: #1f2937;
  color: #f3f4f6;
  text-align: center;
  padding: 1.2rem;
}