:root{
  --red:#e60023;
  --blue:#004aad;
  --black:#111;
  --white:#fff;
}

/* Reset simple */
*{box-sizing:border-box}
body{font-family:Inter,Arial,Helvetica,sans-serif;margin:0;color:var(--black);background:#fff;line-height:1.4}

/* Layout */
.wrap{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px}
.header-inner{display:flex;align-items:center;gap:20px;width:100%}
.site-header{border-bottom:4px solid var(--red);background:#fff}
.main-nav a{margin:0 12px;text-decoration:none;color:var(--black);font-weight:600}
.actions a{margin-left:10px;text-decoration:none}

/* Logo - responsive */
.logo-img{
  max-height:72px;      /* ajusta el máximo alto del logo */
  width:auto;
  height:auto;
  display:block;
  object-fit:contain;
}

/* Contenedor principal */
.container{max-width:1100px;margin:20px auto;padding:0 12px}

/* Grid productos */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{border:1px solid #eee;border-radius:8px;overflow:hidden;transition:transform .18s ease;padding:10px;background:#fff;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px)}
.card img{width:100%;height:200px;object-fit:cover;border-radius:6px}
.card h3{margin:10px 0 6px;font-size:1rem}
.price{color:var(--red);font-weight:700}

/* Product page */
.product-page{display:grid;grid-template-columns:1fr 360px;gap:20px}
.gallery img{width:100%;max-height:420px;object-fit:contain;margin-bottom:8px;border-radius:6px}
.summary .btn{display:inline-block;padding:10px 14px;background:var(--red);color:#fff;border-radius:8px;text-decoration:none;border:none;cursor:pointer}

/* Tallas */
.tallas{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.talla{
  border:1px solid #ddd;padding:8px 12px;border-radius:6px;background:#fff;cursor:pointer;min-width:56px;text-align:center;
}
.talla.no-disponible{opacity:0.45;cursor:not-allowed;background:#f7f7f7}

/* Admin */
.admin-nav{background:#f7f7f7;padding:12px;border-bottom:1px solid #ddd}
.admin-nav a{margin-right:12px;text-decoration:none;color:var(--black)}
.admin-table{width:100%;border-collapse:collapse}
.admin-table th, .admin-table td{padding:8px;border:1px solid #eee;text-align:left}
.login{max-width:420px;margin:60px auto;padding:20px;border:1px solid #eee;border-radius:8px}

/* Cart table */
.cart-table{width:100%;border-collapse:collapse;margin-top:12px}
.cart-table th,.cart-table td{border:1px solid #eee;padding:8px}

/* Utilities */
.muted{color:#777}
.btn{display:inline-block;padding:8px 12px;background:var(--red);color:#fff;border-radius:8px;text-decoration:none}

/* Responsive */
@media (max-width:900px){
  .product-page{grid-template-columns:1fr}
  .wrap{padding:8px}
  .logo-img{max-height:56px}
}

.site-footer{padding:20px;text-align:center;background:#111;color:#fff}
@media(max-width:800px){.product-page{grid-template-columns:1fr}}