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

body{
    background:linear-gradient(180deg,#0f172a,#111827,#020617);
    color:white;
    overflow-x:hidden;
}

nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:25px 8%;
    background:#111827;
    position:sticky;
    top:0;
}

.logo{
    font-size:1.6rem;
    font-weight:bold;
}

.links a{
    color:white;
    text-decoration:none;
    margin-left:30px;
    transition:.3s;
}

.links a:hover{
    color:#38bdf8;
}

.hero{
    text-align:center;
    padding:120px 20px;
}

.hero h1{

font-size:4rem;

font-weight:800;

line-height:1.1;

margin-bottom:25px;

background:linear-gradient(90deg,#ffffff,#60a5fa,#38bdf8);

-webkit-background-clip:text;

-webkit-text-fill-color:transparent;

}

.hero p{
    color:#cbd5e1;
    font-size:1.2rem;
    margin-bottom:40px;
}

.search-box{
    display:flex;
    justify-content:center;
    gap:10px;
    flex-wrap:wrap;
}

.search-box input{
    width:420px;
    max-width:90%;
    padding:18px;
    border:none;
    border-radius:12px;
    font-size:16px;
}

.search-box button{
    padding:18px 30px;
    border:none;
    border-radius:12px;
    background:linear-gradient(90deg,#2563eb,#3b82f6);
    color:white;
    font-size:16px;
    cursor:pointer;
    transition:.3s;
}

.search-box button:hover{
    background:#1d4ed8;
    transform:scale(1.05);
}

.featured{
    padding:80px 8%;
}

.featured h2{
    text-align:center;
    margin-bottom:40px;
    font-size:2rem;
}

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

.card{

background:rgba(255,255,255,.05);

border:1px solid rgba(255,255,255,.08);

backdrop-filter:blur(12px);

border-radius:20px;

padding:30px;

transition:.35s;

}

.card:hover{

transform:translateY(-12px);

border-color:#38bdf8;

box-shadow:0 20px 50px rgba(56,189,248,.25);

}

.card:hover{
    transform:translateY(-8px);
}

.card h3{
    margin-bottom:20px;
}

.card span{
    color:#38bdf8;
    font-size:1.4rem;
    font-weight:bold;
}

@media(max-width:768px){

    nav{
        flex-direction:column;
        gap:20px;
    }

    .links{
        display:flex;
        flex-wrap:wrap;
        justify-content:center;
    }

    .links a{
        margin:8px;
    }

    .hero h1{
        font-size:2.5rem;
    }

}

.hero{
    position:relative;
}

.hero::before{

content:"";

position:absolute;

width:700px;
height:700px;

background:#2563eb;

filter:blur(180px);

opacity:.22;

left:50%;

top:-250px;

transform:translateX(-50%);

z-index:-1;

}

.card span{
    display:block;
    margin-top:15px;
    font-size:2rem;
    font-weight:bold;
    color:#3b82f6;
}

.card img{
    height:220px;
    object-fit:cover;
}

.card p{
    line-height:1.5;
}

.card{
    position:relative;
}

.badge{
    position:absolute;
    top:15px;
    right:15px;
    background:#ef4444;
    color:white;
    padding:8px 12px;
    border-radius:999px;
    font-size:.8rem;
    font-weight:bold;
}

.old-price{
    color:#8b95a7;
    text-decoration:line-through;
    font-size:1rem;
    margin-top:8px;
    margin-bottom:0px;
}

.you-save{
    color:#22c55e;
    font-size:1rem;
    font-weight:bold;
    margin-bottom:8px;
}

.rating{
    color:#facc15;
    font-weight:bold;
    font-size:1.1rem;
    margin-bottom:10px;
}

.stock{
    color:#34d399;
    font-size:1rem;
    font-weight:bold;
    margin-bottom:12px;
}

.shipping{
    color:#cbd5e1;
    font-size:.95rem;
    margin-bottom:10px;
}

.reviews{
    color:#94a3b8;
    font-size:.95rem;
    margin-bottom:15px;
}

.warranty{
    color:#60a5fa;
    font-size:.95rem;
    font-weight:600;
    margin-bottom:15px;
}

.card-footer{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-top:20px;
}

.price{
    font-size:2rem;
    font-weight:bold;
    color:#3b82f6;
}

.favorite-btn{
    background:#2d3748;
    color:white;
    border:none;
    padding:10px 18px;
    border-radius:999px;
    cursor:pointer;
    transition:0.25s ease;
    font-weight:bold;
}

.favorite-btn:hover{
    background:#ef4444;
    transform:scale(1.05);
}