body{
  font-family: "Segoe UI", Arial, sans-serif;
  margin: 0;
  background-color: #f8fafc;
  color: #222;  
}
footer{
  background-color: #1d4ed8;
}
a{
  text-decoration: none;
  color: inherit
}
.container{
  max-width: 1200px;
  margin: 0 auto;
}

#nav-bar{
  background-color: #fff;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 2px 8px 0 #0001;
  position: sticky;
  top: 0;
  z-index: 10;
}
#nav-div{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}
#nav-items{
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}
#nav-items a{
  color: #222;
  font-weight: 500;
}
#nav-items a.active{
  color: #2563eb;
  text-decoration-line: underline;
  font-weight: 700;
}
#nav-items a:hover{
  color: #2563eb;
  transition: color .2s;
}

#hero-bg{
  background-image: url("../assets/images/it-lobby.jpg");
  background-position: center;
  text-align: center;
  padding: 3rem 0 3rem 0;
}
#hero{
  padding: 1rem 0 1rem 0;
  background-color: #ffffffaf;
}
#hero h1{
  color: #1d4ed8;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
#hero p{
  color: #444;
  max-width: 600px;
  margin: 0 auto 2rem auto;
  font-size: 1rem;
}
#hero-btn{
  background-color: #2563eb;
  color: #fff;
  padding: .75rem 2rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 2px 0 0 #0001;
  display: inline-block;
  margin-bottom: 1rem;
}
#hero-btn:hover{
  background-color: #1d4ed8;
  transition: background .2s;
}

#programs {
  background-color: #fff;
  padding: 3rem 0 4rem;
}
#programs h2{
  color: #1d4ed8;
  text-align: center;
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 2rem;
  font-weight: 800;
}

#facilities {
  background-color: #e4edfb;
  padding: 3rem 0 4rem;
}
#facilities h2{
  color: #1d4ed8;
  text-align: center;
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 2rem;
  font-weight: 800;
}

.card-content{
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.big-card-container{
  padding: 0 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.big-card{
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 2px 8px 0 #0001;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  justify-content: space-between;
  transition: box-shadow .2s;
  text-align: center;
  margin: 2rem 0;
}
.big-card img{
  width: 50%;
  border-radius: 1rem;
  object-fit: cover;
}
.card-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  padding: 0 1.5rem;
  max-width: 1200px;
  margin: 0 auto;  
}
.card{
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 2px 8px 0 #0001;
  padding: 2rem 1.2rem;
  display: flex;
  align-items: center;
  flex-direction: column;
  transition: box-shadow .2s;
  text-align: center;
  cursor: pointer;
}
.card:hover, .big-card:hover {
  box-shadow: 0 8px 24px 0 #0002;
}
.card img{
  width: 100%;
  height: 5rem;
  border-radius: 1rem;
  margin-bottom: 1rem;
  object-fit: cover;
}

.card-content h3{
  margin-top: 0;
}
.card h3, .big-card h3 {
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.card p, .big-card p {
  color: #444;
  font-size: 1rem;
  margin: 0;
}

#footer{
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1rem;
  font-size: 1rem;
}

@media (max-width: 650px){
  #nav-div{
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
  }
  .card-grid{
    gap: 1.2rem;
    padding: 0 .5rem;
  }
  .big-card{
    flex-direction: column;
  }
  .big-card img{
    width: 100%;
  }
  #hero h1{
    font-size: 2rem;
  }
  #programs h2{
    font-size: 1.3rem;
    margin-bottom: 1.1rem;
  }
  #facilities h2{
    font-size: 1.3rem;
    margin-bottom: 1.1rem;
  }
  #footer{  
    flex-direction: column;
    font-size: .97rem;
    text-align: center;
  }
}