/* General Body */
body {
  font-family: 'Roboto', sans-serif;
  scroll-behavior: smooth;
}

/* Hero Section */
.hero {
  background: url('https://cdn.ezo.io/wp-content/uploads/2019/09/Challenges-in-construction-industry-.jpg') center/cover no-repeat;
  color: white;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}
.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
  animation: fadeInDown 1s ease forwards;
}
.hero p {
  font-size: 1.5rem;
  margin-bottom: 30px;
  animation: fadeInUp 1s ease forwards;
}

@keyframes fadeInDown {
  from {opacity:0; transform: translateY(-50px);}
  to {opacity:1; transform: translateY(0);}
}
@keyframes fadeInUp {
  from {opacity:0; transform: translateY(50px);}
  to {opacity:1; transform: translateY(0);}
}

/* Service Cards Hover */
.service-card:hover {
  transform: translateY(-10px);
  transition: 0.3s;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}
.accordion-button {
  font-weight: 600;
}
.accordion-button:not(.collapsed) {
  background-color: #0d6efd;
  color: white;
}
.accordion-item {
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 10px;
}

/* Footer */
footer {
  background-color: #343a40;
  color: white;
  padding: 40px 0;
}