body{font-family:system-ui;margin:0;background:#0f1419;color:#fff}
.header{background:#1a2332;padding:1rem;border-bottom:1px solid #333}
.container{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.search{padding:8px;border-radius:8px;border:1px solid #333;background:#0f1419;color:#fff}
main{max-width:1400px;margin:0 auto;padding:2rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1.5rem}
.card{text-decoration:none;color:#fff;text-align:center}
.card img{width:100%;border-radius:18px;margin-bottom:8px}
.card h3{font-size:14px}
.app-detail{max-width:900px;margin:0 auto;text-align:center}
.big-icon{width:150px;border-radius:24px;margin:2rem}
button{background:#6366f1;color:#fff;border:none;padding:12px 32px;border-radius:8px;cursor:pointer;font-size:16px}
.desc{background:#1a2332;padding:2rem;border-radius:16px;text-align:left;margin-top:2rem}
footer{text-align:center;padding:2rem;color:#9ca3af;margin-top:4rem}