:root{
  --bg:#f6f8fb;
  --primary:#22c55e; 
  --accent:#1a5fd8;
  --panel:#fff;
  --muted:#8792a1;
}

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

body{
  background: var(--bg);
  color: #1f2937;
  min-height: 100vh;
  display:flex;
  flex-direction:column;
}

.header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 40px;
  background: var(--panel);
  box-shadow:0 4px 12px rgba(0,0,0,0.05);
}

.logo{
  font-size:32px;
  font-weight:700;
  color: var(--accent);
}

.top-nav .btn{
  margin-left:10px;
  padding:8px 16px;
  border-radius:10px;
  border:1px solid var(--accent);
  background:transparent;
  cursor:pointer;
  font-weight:600;
  transition:all 0.2s;
}

.top-nav .btn:hover{
  background:var(--accent);
  color:#fff;
}

.landing-main{
  flex:1;
  display:flex;
  justify-content:center;
  align-items:center;
  padding:40px;
}

.landing-content{
  text-align:center;
  max-width:600px;
}

.title{
  font-size:60px;
  font-weight:700;
  color: var(--accent);
  margin-bottom:20px;
}

.subtitle{
  font-size:22px;
  margin-bottom:30px;
}

.features{
  list-style:none;
  display:flex;
  justify-content:center;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:40px;
  font-weight:600;
}

.features li{
  background:#e6f4ea;
  padding:8px 14px;
  border-radius:12px;
  color:var(--primary);
  font-size:14px;
}

.btn.primary{
  background: var(--primary);
  color:#fff;
  border:none;
  padding:14px 28px;
  border-radius:12px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  transition:all 0.2s;
}

.btn.primary:hover{
  filter: brightness(1.1);
}

@media(max-width:768px){
  .title{font-size:48px;}
  .subtitle{font-size:20px;}
  .features{flex-direction:column;gap:12px;}
}