.snstore-hero { padding: 72px 0 16px; }
.snstore-hero h1 { font-size: clamp(37px, 4.3vw, 61px); margin-top: 0; }
.snstore-hero .sn-hero-grid { min-height: 390px; gap: 44px; }
.snstore-topic-panel {
    padding: clamp(16px, 3vw, 28px);
    border: 1px solid rgba(172, 201, 255, .3);
    border-radius: 20px;
    background: rgba(10, 22, 43, .44);
}
.snstore-panel-title { margin: 0 0 16px; color: #dce8ff; font-weight: 750; }
.snstore-topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.snstore-topic-tile {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    padding: clamp(12px, 2vw, 18px);
    border-radius: 12px;
    background: #f8faff;
    color: #172745;
}
.snstore-topic-tile:hover { background: #e8efff; color: #172745; }
.snstore-topic-tile:focus-visible, .snstore-catalog-nav a:focus-visible {
    outline: 3px solid #7ddbd3;
    outline-offset: 3px;
}
.snstore-topic-tile .sn-category-icon { margin-bottom: 3px; }
.snstore-topic-tile > span:last-child { color: #51627e; font-size: .8rem; }
#resources, #about { scroll-margin-top: 110px; }
.snstore-shelf { margin-top: 32px; }
.snstore-shelf-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px 16px;
    margin-bottom: 14px;
}
.snstore-shelf-heading h3 { margin: 0; font-size: 1.25rem; }
.snstore-empty {
    padding: 16px 20px;
    border: 1px dashed #cbd5e1;
    border-radius: 12px;
    color: #51627e;
    margin: 0;
}
.snstore-about p { max-width: 660px; }
.snstore-plsql-cover b { letter-spacing: -.045em; }
.snstore-catalog-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.snstore-catalog-nav a {
    padding: 8px 14px;
    background: #fff;
    color: #1c325c;
    border: 1px solid #cbd7ed;
    border-radius: 999px;
    font-weight: 700;
    font-size: .85rem;
}
.snstore-catalog-nav a[aria-current], .snstore-catalog-nav a:hover { background: #1c325c; color: #fff; }
@media (max-width: 680px) {
    .snstore-hero { padding-top: 44px; }
    .snstore-hero .sn-hero-grid { gap: 28px; }
    .snstore-shelf-heading .sn-view-all { margin-top: 0; }
}
@media (max-width: 340px) {
    .snstore-topic-grid { grid-template-columns: 1fr; }
}