body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #333;
}

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

.hero .overlay {
  background-color: rgba(0,0,0,0.5);
  padding: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: red;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  margin-top: 1rem;
}

.section {
  padding: 4rem 2rem;
  text-align: center;
}

.two-column {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}

.two-column .text { flex: 1; }
.two-column .image { flex: 1; }
.two-column img { max-width: 100%; border-radius: 10px; }

.categories .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.categories .card {
  position: relative;
  height: 200px;
  background-size: cover;
  background-position: center;
  border-radius: 10px;
  overflow: hidden;
}

.categories .card .overlay {
  background: rgba(255,0,0,0.6);
  color: white;
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  padding: 1rem;
}

.gallery .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

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

.brands .logos {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.testimonials .cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.testimonial {
  background: #f9f9f9;
  border-left: 5px solid red;
  padding: 1rem;
  border-radius: 5px;
}

.contact form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto 2rem;
}

.contact input, .contact textarea {
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.contact button {
  padding: 0.75rem;
  background: red;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.contact .info { margin-top: 2rem; }
.contact iframe { width: 100%; height: 200px; border: none; margin-top: 1rem; }

@media (max-width: 768px) {
  .two-column { flex-direction: column; }
}