/* Homepage topic chips: compact, non-sticky discovery row beneath the main navigation. */

.sn-topic-nav {
    --sn-topic-ink: var(--sn-l-text, #17302b);
    --sn-topic-muted: var(--sn-l-muted, #54645f);
    --sn-topic-line: var(--sn-l-border, rgba(23, 60, 53, 0.14));
    --sn-topic-accent: var(--sn-l-link, #067466);
    position: relative;
    padding: 0 1rem;
}

html[data-ui-theme="dark"] .sn-topic-nav {
    --sn-topic-ink: #edf5f1;
    --sn-topic-muted: #b7c5bf;
    --sn-topic-line: rgba(226, 241, 235, 0.2);
    --sn-topic-accent: #68e2c9;
}

.sn-topic-nav-list {
    display: flex;
    gap: 0.5rem;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 0.7rem 0 0.2rem;
    list-style: none;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.sn-topic-nav-list::-webkit-scrollbar {
    display: none;
}

.sn-topic-nav-list li {
    flex: 0 0 auto;
    margin: 0;
}

.sn-topic-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    height: 2rem;
    padding: 0 0.85rem 0 0.7rem;
    border: 1px solid var(--sn-topic-line);
    border-radius: 999px;
    background: transparent;
    color: var(--sn-topic-ink);
    font: 500 0.8125rem/1 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
    letter-spacing: 0.01em;
    white-space: nowrap;
    text-decoration: none;
    transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.sn-topic-chip-arrow {
    color: var(--sn-topic-muted);
    font-size: 0.85em;
    transition: transform 0.15s ease, color 0.15s ease;
}

.sn-topic-chip:hover,
.sn-topic-chip:focus-visible {
    border-color: var(--sn-topic-chip-accent, var(--sn-topic-accent));
    color: var(--sn-topic-chip-accent, var(--sn-topic-accent));
    text-decoration: none;
}

.sn-topic-chip:hover .sn-topic-chip-arrow,
.sn-topic-chip:focus-visible .sn-topic-chip-arrow {
    color: inherit;
    transform: translate(1px, -1px);
}

.sn-topic-chip:focus-visible {
    outline: 2px solid var(--sn-topic-chip-accent, var(--sn-topic-accent));
    outline-offset: 2px;
}

@media (max-width: 767.98px) {
    .sn-topic-nav {
        padding: 0;
    }

    /* Edge padding and a soft fade hint that the row scrolls */
    .sn-topic-nav-list {
        width: auto;
        margin: 0;
        padding: 0.6rem 1rem 0.15rem;
        -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 1.5rem), transparent 100%);
        mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 1.5rem), transparent 100%);
    }

    .sn-topic-nav-list li:last-child {
        padding-right: 1.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sn-topic-chip,
    .sn-topic-chip-arrow {
        transition: none;
    }
}