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

body{
  font-family:Arial, sans-serif;
  background:#f5f9ff;
  color:#0f172a;
  line-height:1.6;
}

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

.header{
  background:white;
  padding:18px 0;
  box-shadow:0 2px 12px rgba(0,0,0,0.05);
  position:sticky;
  top:0;
}

.nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo{
  display:flex;
  align-items:center;
  gap:12px;
}

.logo-mark{
  width:50px;
  height:50px;
  background:#0b5cff;
  color:white;
  border-radius:12px;
  display:flex;
  justify-content:center;
  align-items:center;
  font-weight:bold;
}

nav a{
  margin-left:18px;
  text-decoration:none;
  color:#0f172a;
  font-weight:600;
}

.hero{
  padding:90px 0;
}

.hero-grid{
  display:grid;
  grid-template-columns:1fr 400px;
  gap:50px;
  align-items:center;
}

.hero h2{
  font-size:54px;
  margin:20px 0;
}

.hero p{
  font-size:18px;
  color:#475569;
}

.badge{
  background:#dbeafe;
  color:#0b5cff;
  padding:10px 16px;
  border-radius:999px;
  font-weight:bold;
}

.hero-buttons{
  margin-top:30px;
}

.btn-primary,
.btn-secondary{
  padding:14px 22px;
  border-radius:10px;
  text-decoration:none;
  font-weight:bold;
}

.btn-primary{
  background:#0b5cff;
  color:white;
}

.btn-secondary{
  border:2px solid #0b5cff;
  color:#0b5cff;
  margin-left:10px;
}

.hero-card{
  background:white;
  padding:30px;
  border-radius:24px;
  box-shadow:0 10px 30px rgba(0,0,0,0.08);
}

.stat{
  margin-bottom:25px;
}

.categories{
  padding:70px 0;
}

.grid{
  margin-top:30px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:25px;
}

.card{
  background:white;
  padding:30px;
  border-radius:20px;
  box-shadow:0 8px 25px rgba(0,0,0,0.05);
}

.featured{
  padding:70px 0;
}

.article-grid{
  margin-top:30px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:25px;
}

.article-card{
  background:white;
  padding:30px;
  border-radius:20px;
}

.tag{
  display:inline-block;
  background:#0b5cff;
  color:white;
  padding:6px 12px;
  border-radius:999px;
  margin-bottom:15px;
}

.newsletter{
  padding:70px 0;
}

.newsletter-box{
  background:#0b5cff;
  color:white;
  padding:50px;
  border-radius:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.newsletter input{
  padding:14px;
  border:none;
  border-radius:10px;
  width:260px;
}

.newsletter button{
  padding:14px 20px;
  border:none;
  border-radius:10px;
  margin-left:10px;
  font-weight:bold;
}

.footer{
  background:#0f172a;
  color:white;
  padding:30px 0;
  text-align:center;
}

.article-layout{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:40px;
  padding:60px 0;
}

.article-content,
.sidebar-card{
  background:white;
  padding:30px;
  border-radius:20px;
}

.lead{
  font-size:20px;
  margin:20px 0;
}

@media(max-width:900px){
  .hero-grid,
  .article-layout,
  .newsletter-box{
    grid-template-columns:1fr;
    display:block;
  }

  nav{
    display:none;
  }

  .hero h2{
    font-size:38px;
  }
}