:root {
    --xb-card-bg: #fff;
    --xb-text-dark: #111;
    --xb-btn-bg: #111;
    --xb-btn-text: #fff;
    --xb-shadow-light: rgba(0,0,0,0.06);
    --xb-shadow-dark: rgba(0,0,0,0.12);
}

.xb-grid {
    display: grid;
    gap: 24px;
}

.xb-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.xb-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.xb-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
    .xb-grid.cols-3,
    .xb-grid.cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 576px) {
    .xb-grid {
        grid-template-columns: 1fr !important;
    }
}

.xb-card {
    background: var(--xb-card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px var(--xb-shadow-light);
    transition: .25s ease;
}
.xb-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px var(--xb-shadow-dark);
}

.xb-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.xb-card-title {
    padding: 16px;
    margin: 0;
    font-size: 18px;
    color: var(--xb-text-dark);
}

.xb-load-more {
    margin-top: 30px;
    padding: 12px 24px;
    border: none;
    background: var(--xb-btn-bg);
    color: var(--xb-btn-text);
    border-radius: 10px;
    cursor: pointer;
    transition: background-color .2s ease;
}
.xb-load-more:hover {
    background: #333;
}
.xb-load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}