*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,sans-serif}
body{background:#0f1117;color:#fff;line-height:1.6}
section{padding:80px 10%}
h1,h2,h3{line-height:1.2}
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(120deg,#0f1117,#1c1f2a)}
.hero h1{font-size:2.5rem}
.hero h2{font-size:1.5rem}
.hero p{max-width:600px;margin:20px 0}
.btn{display:inline-block;padding:14px 28px;background:#5f7cff;color:#fff;border-radius:30px;text-decoration:none;font-weight:600}
.download-wrap{margin-top:20px}
.download-btn{font-size:1.1rem;padding:18px 34px}
@media (max-width:600px){
  .download-btn{display:block;width:80%;max-width:320px;margin:0 auto;font-size:1.2rem;padding:18px 24px}
}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;margin-top: 25px;}
.card{background:#1a1d29;padding:30px;border-radius:16px}
.dark{background:#141622}
.center{text-align:center}
footer{padding:40px 10%;background:#0b0d13;color:#888;text-align:center}
a {text-decoration: none; color: #fff;}