body { margin:0; font-family: Arial, sans-serif; background:#0a0a0a; color:#eee; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }
.grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:30px; }
.card { background:#111; border-radius:8px; overflow:hidden; }
.card-content { padding:25px; }
.tag { background:#00ccff; color:#000; padding:4px 12px; border-radius:4px; font-size:13px; font-weight:bold; }

.nav-box {
    background:#111; color:#fff; padding:12px 16px; border-radius:6px; text-decoration:none; font-size:15px;
    transition:all 0.3s; border:1px solid #222;
}
.nav-box:hover { background:#00ccff; color:#000; }

.hero { height:100vh; background-size:cover; background-position:center; display:flex; align-items:center; justify-content:center; text-align:center; color:white; }

.nav-box {
    background:#111;
    color:#fff;
    padding:12px 16px;
    border-radius:6px;
    text-decoration:none;
    font-size:15px;
    font-weight:500;
    transition:all 0.3s;
    border:1px solid #222;
}
.nav-box:hover {
    background:#00ccff;
    color:#000;
}

.mobile-nav {
    display: none;
}
footer {
    text-align: center;
    padding: 40px 20px;
    background: #0a0a0a;
    border-top: 1px solid #222;
    margin-top: 80px;
    line-height: 1.6;
}