/* ── Private Collection 4-category grid — responsive ── */
.pc-four-grid,
.pc-cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
@media (max-width: 1024px) {
    .pc-four-grid,
    .pc-cat-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 16px !important;
        padding: 0 16px !important;
    }
    .pc-cat-grid .rotator-card-title { font-size: 18px !important; }
    .pc-cat-grid .rotator-card-img { aspect-ratio: 1/1 !important; }
    .pc-cat-grid .rotator-card-body { padding: 16px 12px 20px !important; }
}
@media (max-width: 480px) {
    .pc-four-grid,
    .pc-cat-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
        padding: 0 12px !important;
    }
}

/* ── Ring setting cards (step 9) — 2 cols on mobile ── */
.os-setting-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    max-width: 880px;
    margin: 0 auto 20px;
    padding: 0 4px;
}
@media (max-width: 768px) {
    .os-setting-cards { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 480px) {
    .os-setting-cards { grid-template-columns: repeat(2, 1fr) !important; gap: 8px !important; }
}

/* ── Atelier badges 4-col → 2-col on mobile ── */
@media (max-width: 768px) {
    .atelier-badges-grid { grid-template-columns: repeat(2,1fr) !important; }
}
@media (max-width: 480px) {
    .atelier-badges-grid { grid-template-columns: repeat(2,1fr) !important; gap: 10px !important; }
}

/* ── Necklace / bracelet design grids — 2 cols on mobile ── */
.nk-grid,
.br-grid {
    display: grid;
    gap: 12px;
    margin: 0 auto 14px;
}
@media (max-width: 768px) {
    .nk-grid  { grid-template-columns: repeat(2, 1fr) !important; }
    .br-grid  { grid-template-columns: repeat(2, 1fr) !important; }
}

.diamond-grid-5x5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 20px;
}
.diamond-card {
    background: #fff;
    border: 1px solid #7a6200;
    padding: 15px;
    text-align: center;
    transition: 0.3s;
}
.diamond-card img {
    width: 100%;
    height: 150px;
    object-fit: contain;
}