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

body{
  background:#f4f7fb;
  color:#222;
  line-height:1.8;
}

/* HERO */

.hero{
  width:100%;
  min-height:45vh;

  background:
  linear-gradient(rgba(7,17,31,0.85),rgba(7,17,31,0.85)),
  url('https://images.unsplash.com/photo-1516321318423-f06f85e504b3?q=80&w=1400&auto=format&fit=crop');

  background-size:cover;
  background-position:center;

  display:flex;
  justify-content:center;
  align-items:center;
  text-align:center;

  color:#fff;
  padding:40px;
}

.hero-content h1{
  font-size:52px;
  margin-bottom:15px;
}

.hero-content p{
  font-size:20px;
  max-width:850px;
  margin:auto;
  color:#ddd;
}

/* CONTAINER */

.container{
  width:90%;
  max-width:1200px;
  margin:60px auto;
}

.main-title{
  text-align:center;
  margin-bottom:50px;
}

.main-title h2{
  font-size:40px;
  color:#07111f;
}

.main-title p{
  color:#666;
  margin-top:10px;
}

/* GRID */

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:25px;
}

/* CARD */

.card{
  background:#fff;
  padding:25px;
  border-radius:18px;
  box-shadow:0 4px 15px rgba(0,0,0,0.08);
  transition:0.3s;
}

.card:hover{
  transform:translateY(-5px);
}

.card h3{
  color:#0077b6;
  margin-bottom:15px;
  padding-bottom:10px;
  border-bottom:2px solid #eee;
  font-size:24px;
}

.card ul{
  padding-left:18px;
}

.card li{
  margin-bottom:10px;
  color:#444;
}

/* CODE BOX */

.code-box{
  background:#07111f;
  color:#00e5ff;
  padding:15px;
  border-radius:10px;
  margin-top:15px;
  font-size:16px;
  overflow:auto;
}

/* DOWNLOAD BUTTON */

.download-section{
  text-align:center;
  margin-top:50px;
}

.download-btn{
  display:inline-block;
  background:#00b4d8;
  color:#fff;
  padding:15px 35px;
  border-radius:12px;
  text-decoration:none;
  font-size:18px;
  font-weight:600;
  transition:0.3s;
  box-shadow:0 4px 15px rgba(0,0,0,0.15);
}

.download-btn:hover{
  background:#0096c7;
  transform:translateY(-3px);
}

/* MOBILE */

@media(max-width:768px){

  .hero-content h1{
    font-size:36px;
  }

  .hero-content p{
    font-size:17px;
  }

}