.isbu-pb-wrapper{
    background:#f8faf4;
    border:1px solid #dce7cb;
    border-radius:18px;
    padding:20px;
    margin:20px 0;
}

.isbu-pb-header{
    text-align:center;
    margin-bottom:20px;
}

.isbu-pb-header h2{
    margin:0;
    color:#1B5E20;
    font-size:28px;
    font-weight:800;
    line-height:1.2;
}

.isbu-pb-header p{
    margin-top:8px;
    color:#666;
    font-size:14px;
}

.isbu-pb-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.isbu-pb-card{
    background:#fff;
    border:1px solid #ececec;
    border-radius:16px;
    overflow:hidden;
    transition:.3s;
}

.isbu-pb-card:hover{
    transform:translateY(-4px);
    box-shadow:0 10px 20px rgba(0,0,0,.06);
}

.isbu-pb-image{
    padding:8px;
}

.isbu-pb-image img{
    width:100%;
    display:block;
    border-radius:10px;
}

.isbu-pb-branch{
    color:#fff;
    text-align:center;
    padding:10px;
    font-size:20px;
    font-weight:700;
}

.isbu-green{
    background:#1B5E20;
}

.isbu-yellow{
    background:#F4B400;
}

.isbu-red{
    background:#E53935;
}

.isbu-pb-stock{
    margin:15px;
    padding:14px;
    border-radius:12px;
    text-align:center;
}

.isbu-pb-stock.available{
    background:#edf8e7;
    color:#2e7d32;
}

.isbu-pb-stock.unavailable{
    background:#fff0f0;
    color:#d32f2f;
}

.isbu-pb-stock-title{
    font-size:18px;
    font-weight:700;
}

.isbu-pb-stock-subtitle{
    margin-top:5px;
    font-size:14px;
}

.isbu-pb-button{
    width:calc(100% - 30px);
    margin:0 15px 15px;
    padding:12px;
    border:none;
    border-radius:10px;
    background:#69BE28;
    color:#fff;
    font-size:15px;
    font-weight:700;
    cursor:pointer;
}

@media(max-width:768px){

    .isbu-pb-grid{
        grid-template-columns:1fr;
    }

}