body{
    margin:0;
    font-family:Inter, Arial;
    background:#050505;
    color:#fff;
}

/* fundo neon animado */
.bg{
    position:fixed;
    inset:0;
    background:
        radial-gradient(circle at 20% 20%, #00ffcc22, transparent 40%),
        radial-gradient(circle at 80% 30%, #7c4dff22, transparent 40%),
        radial-gradient(circle at 50% 80%, #00ff9922, transparent 40%);
    z-index:-1;
}

/* HEADER */
header{
    padding:18px 25px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    border-bottom:1px solid #111;
    backdrop-filter: blur(10px);
}

.logo{
    font-weight:800;
    color:#00ffcc;
    text-shadow:0 0 10px #00ffcc33;
    font-size:18px;
}

/* HERO */
.hero{
    text-align:center;
    padding:60px 20px 30px;
}

.hero h1{
    font-size:32px;
    text-shadow:0 0 15px #7c4dff;
}

.hero p{
    color:#aaa;
}

/* GRID */
.grid{
    max-width:1100px;
    margin:auto;
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
    gap:20px;
    padding:20px;
}

/* CARD */
.card{
    background:#0d0d0d;
    border:1px solid #1a1a1a;
    border-radius:16px;
    padding:15px;
    transition:.25s;
}

.card:hover{
    transform:translateY(-6px);
    border-color:#00ffcc;
    box-shadow:0 0 20px #00ffcc33;
}

.card img{
    width:100%;
    border-radius:12px;
}

.price{
    color:#00ffcc;
    font-weight:700;
    margin-top:5px;
}

/* BOTÃO */
.btn{
    width:100%;
    margin-top:10px;
    padding:10px;
    border:none;
    border-radius:10px;
    font-weight:700;
    cursor:pointer;
    background:linear-gradient(90deg,#00ffcc,#7c4dff);
    color:#000;
    transition:.2s;
}

.btn:hover{
    transform:scale(1.03);
}

/* POPUP */
.popup-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.75);
    backdrop-filter: blur(10px);
    display:none;
    justify-content:center;
    align-items:center;
    z-index:999;
}

.popup{
    width:90%;
    max-width:400px;
    background:#111;
    border:1px solid #00ffcc33;
    border-radius:16px;
    padding:25px;
}

.popup h2{
    color:#00ffcc;
    text-align:center;
}

.popup p{
    text-align:center;
    color:#aaa;
}

.popup input{
    width:100%;
    padding:10px;
    margin:8px 0;
    background:#000;
    border:1px solid #222;
    border-radius:10px;
    color:#fff;
}

/* CARRINHO FLUTUANTE */
.floating-cart{
    position:fixed;
    bottom:20px;
    right:20px;
    width:60px;
    height:60px;
    border-radius:50%;
    background:linear-gradient(135deg,#00ffcc,#7c4dff);
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:24px;
    cursor:pointer;
    box-shadow:0 0 20px #00ffcc55;
}

.floating-cart span{
    position:absolute;
    top:5px;
    right:5px;
    background:#000;
    color:#00ffcc;
    width:18px;
    height:18px;
    font-size:12px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
}

/* CARRINHO LATERAL */
.cart-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.6);
    display:none;
}

.cart{
    position:fixed;
    top:0;
    right:-400px;
    width:350px;
    height:100%;
    background:#0d0d0d;
    border-left:1px solid #222;
    transition:.3s;
    display:flex;
    flex-direction:column;
}

.cart.open{
    right:0;
}

.cart-header{
    padding:15px;
    display:flex;
    justify-content:space-between;
    border-bottom:1px solid #222;
}

.cart-items{
    flex:1;
    overflow:auto;
    padding:10px;
}

.cart-item{
    background:#111;
    margin:8px 0;
    padding:10px;
    border-radius:10px;
}

.cart-footer{
    padding:15px;
    border-top:1px solid #222;
}

.cart-footer button{
    width:100%;
    padding:10px;
    background:linear-gradient(90deg,#00ffcc,#7c4dff);
    border:none;
    font-weight:700;
    border-radius:10px;
}