/*
 * Site polish: shared shell and mobile navigation rails.
 * The rules stay narrowly scoped so page-local product themes keep ownership.
 */

:root {
    --site-canvas: #020617;
    --site-surface: #0f172a;
    --site-raised: #111827;
    --site-line: #334155;
    --site-text: #f8fafc;
    --site-muted: #a3b2c6;
    --site-gold: #ffbc05;
    --site-teal: #39c6b4;
}

.gnb-brand-mini,
.gnb-tab,
.gnb-my,
.gnb-about {
    -webkit-tap-highlight-color: transparent;
}

.gnb-brand-mini {
    white-space: nowrap;
}

.gnb-nav {
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
}

.gnb-tab {
    scroll-snap-align: center;
}

.gnb-tab:focus-visible,
.gnb-server-box select:focus-visible,
.gnb-about:focus-visible {
    outline: 2px solid var(--site-gold);
    outline-offset: 2px;
}

@media (max-width: 1024px) {
    .gnb-inner {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-areas:
            "left right"
            "nav nav";
        align-items: center;
        height: auto;
        padding: 8px 14px 0;
        gap: 7px 12px;
    }

    .gnb-left {
        grid-area: left;
        width: auto;
        min-width: 0;
        justify-content: flex-start;
    }

    .gnb-nav {
        grid-area: nav;
        width: 100%;
        min-width: 0;
        height: 46px;
        padding: 0;
        mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 48px), transparent);
        -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 48px), transparent);
    }

    .gnb-nav::after {
        flex: 0 0 28px;
        padding: 0;
    }

    .gnb-tab {
        min-height: 44px;
    }

    .gnb-right {
        grid-area: right;
        min-width: max-content;
    }
}

@media (max-width: 640px) {
    .gnb-inner {
        padding-inline: 10px;
        gap: 6px 8px;
    }

    .gnb-left {
        gap: 8px;
    }

    .gnb-brand-mini {
        gap: 7px;
        font-size: 13px;
        letter-spacing: -0.035em;
    }

    .gnb-server-box select {
        width: 106px;
        min-height: 40px;
        padding: 6px 22px 6px 27px;
        font-size: 11px;
    }

    .gnb-server-box .select-icon {
        left: 9px;
        font-size: 12px;
    }

    .gnb-server-box .arrow-icon {
        right: 8px;
    }

    .gnb-right {
        gap: 4px;
    }

    .gnb-my,
    .gnb-about {
        width: 44px;
        min-width: 44px;
        min-height: 44px;
        justify-content: center;
        padding: 0;
        gap: 0;
    }

    .gnb-my span,
    .gnb-about {
        font-size: 0;
    }

    .gnb-my i,
    .gnb-about i {
        font-size: 13px;
    }

    .gnb-tab {
        padding-inline: 11px;
        font-size: 13px;
    }
}

@media (max-width: 360px) {
    .gnb-brand-name {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
}

/*
 * Horizontal rails keep their existing interaction model while removing
 * platform-native scrollbars and leaving a visible next-item cue.
 */
@media (max-width: 900px) {
    .meta-command .meta-command-nav,
    .meta-command .meta-command-recent,
    .economy-experience .market-sub-nav,
    .economy-experience .market-recent-tools,
    .wiki-library .wiki-library-nav-track,
    .wiki-page-wrapper.wiki-library .wiki-toc-grid,
    .weapon-lab .wl-subnav,
    .weapon-lab .wl-change-track,
    .build-hub-nav {
        overscroll-behavior-inline: contain;
        scroll-snap-type: x proximity;
        scrollbar-width: none !important;
        -webkit-overflow-scrolling: touch;
    }

    .meta-command .meta-command-nav::-webkit-scrollbar,
    .meta-command .meta-command-recent::-webkit-scrollbar,
    .economy-experience .market-sub-nav::-webkit-scrollbar,
    .economy-experience .market-recent-tools::-webkit-scrollbar,
    .wiki-library .wiki-library-nav-track::-webkit-scrollbar,
    .wiki-page-wrapper.wiki-library .wiki-toc-grid::-webkit-scrollbar,
    .weapon-lab .wl-subnav::-webkit-scrollbar,
    .weapon-lab .wl-change-track::-webkit-scrollbar,
    .build-hub-nav::-webkit-scrollbar {
        display: none !important;
        width: 0;
        height: 0;
    }

    .meta-command .meta-command-nav,
    .economy-experience .market-sub-nav,
    .wiki-library .wiki-library-nav-track,
    .wiki-page-wrapper.wiki-library .wiki-toc-grid,
    .weapon-lab .wl-subnav,
    .weapon-lab .wl-change-track,
    .build-hub-nav {
        mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 34px), transparent);
        -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 34px), transparent);
    }
}

@media (max-width: 640px) {
    .meta-command .meta-command-workspace-copy,
    .meta-command .meta-command-recent,
    .meta-command .meta-trust-key,
    .meta-command .meta-trust-note,
    .wiki-library .wiki-library-brand small,
    .wiki-library .wiki-evidence-kicker,
    .wiki-library .wiki-evidence-step span {
        font-size: 11px !important;
        line-height: 1.45;
    }

    .meta-command .meta-trust-node strong,
    .wiki-library .wiki-evidence-intro strong,
    .wiki-library .wiki-evidence-step strong {
        font-size: 12px;
        line-height: 1.5;
    }

    .wiki-library .wiki-library-nav-track a,
    .wiki-library .wiki-library-search-link,
    .wiki-page-wrapper.wiki-library .wiki-toc-link {
        min-height: 44px;
    }

    .meta-command .meta-command-recent a {
        min-height: 40px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .gnb-brand-mini,
    .gnb-tab,
    .gnb-my,
    .gnb-about {
        scroll-behavior: auto;
        transition: none;
    }
}