body{
margin:0;
font-family:Segoe UI,Arial;
background:#0f172a;
color:white;
}

header{
background:#020617;
padding:15px 30px;
display:flex;
align-items:center;
justify-content:space-between;
box-shadow:0 4px 20px rgba(0,0,0,.6);
position: sticky;
top: 0;
z-index: 999;
} 

.logoBox{
display:flex;
align-items:center;
gap:15px;
} 

.logoBox img{
height:50px;
} 

.marca{
font-size:24px;
font-weight:bold;
}

.back{
position:fixed;
top:80px;
left:20px;
background:#22c55e;
padding:10px 18px;
border-radius:30px;
text-decoration:none;
color:rgb(11, 7, 41);
font-weight:bold;
z-index: 998;
transition: all 0.3s;
}

.back:hover{
background:#1ea34c;
transform: scale(1.05);
}

#iconoCarrito{
position:fixed;
top:20px;
right:20px;
background:#22c55e;
padding:10px 16px;
border-radius:30px;
cursor:pointer;
font-weight:bold;
transition:.3s;
z-index: 1001;
}

#iconoCarrito:hover{
background:#1ea34c;
transform: scale(1.05);
}

#contador{
background:red;
padding:3px 8px;
border-radius:50%;
margin-left:5px;
font-size: 14px;
}

.tienda{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:30px;
padding:40px;
max-width:1400px;
margin:auto;
}

.producto{
background:#020617;
border-radius:14px;
padding:15px;
box-shadow:0 6px 20px rgba(0,0,0,.5);
text-align:center;
transition: transform 0.3s;
}

.producto:hover{
transform: translateY(-5px);
}

.producto img{
width:100%;
height:180px;
object-fit:cover;
border-radius:10px;
}

.producto h3{
font-size: 16px;
margin: 10px 0;
min-height: 40px;
}

.precio{
color:#22c55e;
font-weight:bold;
font-size:20px;
margin:10px 0;
}

.btn{
background:#22c55e;
border:none;
padding:12px;
width:100%;
border-radius:8px;
color:#020617;
font-weight:bold;
font-size: 16px;
cursor:pointer;
transition: all 0.3s;
}

.btn:hover{
background:#1ea34c;
transform: scale(1.02);
}

#carrito{
position:fixed;
right:-100%;
top:0;
width:100%;
max-width:350px;
height:100%;
background:#020617;
display:flex;
flex-direction:column;
transition:.4s;
box-shadow:-4px 0 20px rgba(0,0,0,.6);
z-index: 1002;
} 

#carrito.show{
right:0;
}

.carrito-header{
padding:20px;
border-bottom:1px solid #334155;
display:flex;
justify-content:space-between;
align-items:center;
}

.carrito-header h2{
margin: 0;
font-size: 20px;
}

.carrito-header button{
background:#ef4444;
border:none;
padding:8px 14px;
border-radius:6px;
color:white;
cursor:pointer;
font-weight: bold;
transition: all 0.3s;
}

.carrito-header button:hover{
background:#dc2626;
}

.carrito-contenido{
flex:1;
overflow:auto;
padding:20px;
}

.carrito-footer{
padding:20px;
border-top:1px solid #334155;
background:#020617;
}

.item{
display:flex;
justify-content:space-between;
align-items:center;
border-bottom:1px solid #334155;
padding:10px 0;
gap: 10px;
} 

.item b{
font-size: 14px;
}

.quitar{
background:red;
border:none;
padding:6px 12px;
border-radius:6px;
color:white;
cursor:pointer;
font-weight: bold;
flex-shrink: 0;
transition: all 0.3s;
} 

.quitar:hover{
background:#dc2626;
}

.total{
font-size:20px;
color:#22c55e;
margin:15px 0;
font-weight: bold;
} 

.whatsapp{
background:#25d366;
padding:12px;
border:none;
width:100%;
border-radius:8px;
color:rgb(15, 9, 44);
font-weight:bold;
cursor:pointer;
margin-bottom:10px;
transition: all 0.3s;
} 

.whatsapp:hover{
background:#20ba5a;
}

.vaciar{
background:#ef4444;
padding:10px;
border:none;
width:100%;
border-radius:8px;
color:white;
cursor:pointer;
font-weight: bold;
transition: all 0.3s;
}

.vaciar:hover{
background:#dc2626;
}

#modal{
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
background:rgba(0,0,0,.8);
display:none;
align-items:center;
justify-content:center;
z-index: 1003;
padding: 20px;
box-sizing: border-box;
} 

.modal-content{
background:#020617;
padding:25px;
border-radius:12px;
text-align:center;
max-width: 400px;
width: 100%;
}

.modal-content h3{
margin-top: 0;
font-size: 18px;
}

.modal-content input{
width:80px;
padding:8px;
text-align:center;
font-size: 16px;
border: 2px solid #334155;
border-radius: 6px;
background: #0f172a;
color: white;
}

footer{
background:#020617;
color:#94a3b8;
padding:25px;
text-align:center;
margin-top:40px;
}

/* ========== RESPONSIVE MOBILE ========== */

/* Tablets y pantallas medianas (768px - 1100px) */
@media(max-width:1100px){
.tienda{
grid-template-columns:repeat(3,1fr);
gap:25px;
padding:30px 20px;
}

.producto h3{
font-size: 15px;
}
}

/* Tablets pequeñas (600px - 768px) */
@media(max-width:768px){
header{
padding:12px 20px;
}

.logoBox img{
height:40px;
}

.marca{
font-size:18px;
}

.back{
top:70px;
left:15px;
padding:8px 14px;
font-size: 14px;
}

#iconoCarrito{
top:15px;
right:15px;
padding:8px 14px;
font-size: 14px;
}

.tienda{
grid-template-columns:repeat(2,1fr);
gap:20px;
padding:25px 15px;
}

.producto{
padding:12px;
}

.producto img{
height:150px;
}

.producto h3{
font-size: 14px;
min-height: 38px;
}

.precio{
font-size:18px;
}

.btn{
padding:10px;
font-size: 15px;
}

#carrito{
max-width:320px;
}

.carrito-header{
padding:15px;
}

.carrito-header h2{
font-size: 18px;
}

.carrito-contenido{
padding:15px;
}

.carrito-footer{
padding:15px;
}

.total{
font-size:18px;
}

footer{
padding:20px;
font-size: 13px;
}
}

/* Móviles (480px - 600px) */
@media(max-width:600px){
header{
padding:10px 15px;
}

.logoBox{
gap:10px;
}

.logoBox img{
height:35px;
}

.marca{
font-size:15px;
line-height: 1.2;
}

.back{
top:65px;
left:10px;
padding:7px 12px;
font-size: 13px;
}

#iconoCarrito{
top:12px;
right:12px;
padding:7px 12px;
font-size: 13px;
}

#contador{
padding:2px 6px;
font-size: 12px;
}

.tienda{
grid-template-columns:repeat(2,1fr);
gap:15px;
padding:20px 12px;
margin-top: 50px;
}

.producto{
padding:10px;
}

.producto img{
height:130px;
}

.producto h3{
font-size: 13px;
min-height: 36px;
}

.precio{
font-size:16px;
margin:8px 0;
}

.btn{
padding:9px;
font-size: 14px;
}

#carrito{
max-width:100%;
width:100%;
}

.carrito-header{
padding:12px;
}

.carrito-header h2{
font-size: 16px;
}

.carrito-header button{
padding:6px 10px;
font-size: 13px;
}

.carrito-contenido{
padding:12px;
}

.item{
font-size: 13px;
}

.item b{
font-size: 13px;
}

.quitar{
padding:5px 10px;
font-size: 12px;
}

.carrito-footer{
padding:12px;
}

.total{
font-size:16px;
margin:12px 0;
}

.whatsapp{
padding:10px;
font-size: 14px;
}

.vaciar{
padding:9px;
font-size: 13px;
}

.modal-content{
padding:20px;
margin: 0 15px;
}

.modal-content h3{
font-size: 16px;
}

.modal-content input{
width:70px;
padding:7px;
font-size: 15px;
}

footer{
padding:15px;
font-size: 12px;
margin-top:30px;
}
}

/* Móviles pequeños (360px - 480px) */
@media(max-width:480px){
header{
padding:8px 12px;
}

.logoBox img{
height:30px;
}

.marca{
font-size:13px;
}

.back{
top:60px;
left:8px;
padding:6px 10px;
font-size: 12px;
}

#iconoCarrito{
top:10px;
right:10px;
padding:6px 10px;
font-size: 12px;
}

.tienda{
grid-template-columns:repeat(2,1fr);
gap:12px;
padding:18px 10px;
margin-top: 45px;
}

.producto{
padding:8px;
}

.producto img{
height:110px;
}

.producto h3{
font-size: 12px;
min-height: 34px;
margin: 8px 0;
}

.precio{
font-size:15px;
margin:6px 0;
}

.btn{
padding:8px;
font-size: 13px;
}

.modal-content{
padding:18px;
margin: 0 12px;
}

.modal-content h3{
font-size: 15px;
}

.modal-content p{
font-size: 14px;
}

.modal-content input{
width:65px;
padding:6px;
font-size: 14px;
}

.modal-content .btn{
padding:10px 20px;
font-size: 14px;
}
}

/* Móviles muy pequeños (menos de 360px) */
@media(max-width:360px){
.marca{
font-size:12px;
}

.tienda{
grid-template-columns:1fr;
gap:15px;
padding:15px 8px;
}

.producto{
max-width: 280px;
margin: 0 auto;
}

.producto img{
height:140px;
}

.producto h3{
font-size: 13px;
min-height: 38px;
}

.precio{
font-size:16px;
}

.btn{
font-size: 14px;
}
}