style.css

:root {
    --ink: #121212;
    --copy: #484848;
    --muted: #696969;
    --faint: #a1a1a1;
    --hairline: #e5e5e5;
    --frame: #d3d3d3;
    --wash: #f3f3f3;
    --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
    --sans: "Inter", "Helvetica Neue", Arial, ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html,
body,
#root,
.gradio-container {
    min-height: 100%;
    margin: 0 !important;
    color: var(--ink) !important;
    background: #fff !important;
    font-family: var(--sans) !important;
    -webkit-font-smoothing: antialiased;
}

.gradio-container {
    max-width: none !important;
    padding: 0 !important;
    /* Gradio ships overflow:hidden here, which defeats every position:sticky
       descendant (site header, sidebar); the page scrolls on the document. */
    overflow: visible !important;
}

.gradio-container > .main,
.gradio-container .contain {
    max-width: none !important;
    padding: 0 !important;
}

.gradio-container .contain > .column {
    gap: 0 !important;
}

.gradio-container .prose { color: inherit !important; }
.gradio-container button { font-family: inherit !important; }
footer { display: none !important; }

/* Suppress Gradio's processing flash (spinner + "x.x/y.ys" text) on re-renders. */
.gradio-container .wrap.default.full,
.gradio-container .progress-text,
.gradio-container .eta-bar,
.gradio-container .meta-text,
.gradio-container .meta-text-center { display: none !important; }

#hidden-controls {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
}

.site-header-wrap {
    position: sticky !important;
    top: 0;
    z-index: 50;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    background: #fff !important;
}

.site-header-wrap .html-container {
    padding: 0 !important;
}

.site-header {
    height: 53px;
    padding: 0 24px; /* wordmark shares the 24px gridline with sidebar labels */
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--hairline);
    background: #fff;
}

.wordmark {
    color: var(--ink) !important;
    font-family: var(--serif);
    font-size: 18px;
    line-height: 24px;
    font-weight: 500;
    letter-spacing: -.01em;
    text-decoration: none !important;
    white-space: nowrap;
}

.top-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.top-nav a,
.top-nav span {
    padding: 4px 6px;
    color: var(--copy) !important;
    font-size: 12px;
    line-height: 18px;
    letter-spacing: .3px;
    text-decoration: none !important;
    white-space: nowrap;
}

.top-nav .active {
    color: var(--ink) !important;
    background: var(--wash);
}

.top-nav .search { padding-right: 0; }

.ot-main {
    min-height: calc(100vh - 53px);
    margin: 0 !important;
    gap: 0 !important;
    align-items: stretch !important;
    flex-wrap: nowrap !important;
}

.ot-sidebar {
    position: sticky;
    top: 53px;
    width: 285px !important;
    min-width: 285px !important;
    max-width: 285px !important;
    height: calc(100vh - 53px);
    padding: 0 8px !important;
    flex: 0 0 285px !important;
    overflow-y: auto;
    background: #fff !important;
}

.sidebar-inner {
    margin: 0 !important;
    padding: 0 !important;
}

/* Gradio's html-container injects 12px that knocks nav text off the 24px gridline. */
.ot-sidebar .html-container { padding: 0 !important; }

.side-section {
    margin: 0 8px 0 5px;
    padding: 12px 0;
}

.side-heading {
    height: 26px;
    padding: 4px 8px 4px 11px; /* text lands on the 24px gridline (8+5+11) */
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--copy);
    font-size: 12px;
    line-height: 18px;
    font-weight: 600;
    letter-spacing: .2px;
}

.side-list { margin-top: 4px; }

.side-link {
    width: 100%;
    min-height: 37px;
    margin: 0 !important;
    padding: 8px 8px 8px 9px !important; /* 8+5+2+9 = 24px gridline */
    display: flex;
    align-items: flex-start;
    border: 0 !important;
    border-left: 2px solid var(--hairline) !important;
    border-radius: 0 !important;
    color: var(--copy) !important;
    background: #fff !important;
    font-size: 14px !important;
    line-height: 21px !important;
    font-weight: 400 !important;
    text-align: left;
    cursor: pointer;
}

.side-link:hover { color: var(--ink) !important; }

.side-link.active {
    border-left-color: var(--ink) !important;
    color: var(--ink) !important;
    background: var(--wash) !important;
}

.ot-content {
    min-width: 0 !important;
    padding: 40px !important;
    gap: 0 !important;
    flex: 1 1 auto !important;
    overflow-x: hidden;
    background: #fff !important;
}

/* Overall header + table fill the full content width (fluid with the window). */
.ot-hero-wrap,
.ot-display {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
}

/* Benchmark detail (prose + chart) fills the width too, like Scale;
   capped so the chart column keeps a real right gutter at 1512+. */
.bm-detail-row {
    width: 100% !important;
    max-width: 1400px !important;
    margin: 0 !important;
}

.ot-hero-wrap {
    padding: 0 !important;
    border: 0 !important;
}

.ot-hero-wrap:has(.prose:empty) { display: none !important; }

.ov-header { padding: 4px 0 0; }

.gradio-container .ov-title {
    margin: 0 0 10px !important;
    color: var(--ink) !important;
    font-family: var(--serif) !important;
    font-size: 34px !important;
    line-height: 36px !important;
    font-weight: 500 !important;
    letter-spacing: -.8px !important;
}

.gradio-container .ov-desc {
    margin: 0 0 16px !important;
    max-width: 760px;
    color: var(--copy) !important;
    font-size: 14px !important;
    line-height: 22px !important;
}

.ov-toolbar {
    margin-top: 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.ov-search {
    flex: 1;
    max-width: 300px;
    height: 40px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 11px;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    color: var(--muted);
}

.ov-search svg { flex: 0 0 auto; }

.ov-search input {
    width: 100%;
    border: 0;
    outline: none;
    background: transparent;
    color: var(--ink) !important;
    font-family: inherit !important;
    font-size: 13px;
}

.ov-rankby {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--copy);
    font-size: 12.5px;
    white-space: nowrap;
}

.ov-rankby select {
    height: 40px;
    padding: 0 9px;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    font-family: inherit;
    font-size: 12.5px;
    cursor: pointer;
}

.ot-display {
    margin-top: 16px !important;
    padding: 0 !important;
    border: 0 !important;
}

.table-wrapper {
    width: 100%;
    max-width: 100%;
    /* Page owns vertical scroll (Scale-style one long page); only x scrolls here.
       The old inner max-height double-scroll clipped rows and ate column width. */
    overflow-x: auto;
    border: 1px solid var(--frame);
    border-radius: 8px;
}

/* Scroll affordances, classes toggled by _updateScrollHints() in app.py JS:
   fade at the cut edge says "more columns", so nothing reads as clipped glyphs. */
.table-wrapper.more-x {
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent);
    mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent);
}

.leaderboard-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
    table-layout: fixed;
    color: var(--ink);
    font-size: 14px;
    line-height: 20px;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

/* Scale-style header: white with a hairline rule, no gray band. */
.leaderboard-table thead tr { background: #fff; }

/* _pinThead() translates the whole thead to keep headers in view; the row
   needs its own stacking level above the sticky identity td cells (z 2). */
.leaderboard-table thead {
    position: relative;
    z-index: 5;
}

.leaderboard-table th,
.leaderboard-table td {
    height: 56px;
    padding: 10px 10px;
    overflow: hidden;
    border-bottom: 1px solid var(--hairline);
    color: var(--ink);
    background: transparent;
    /* Grotesk sans for headers and numbers; mono is model identity ONLY. */
    font-family: var(--sans) !important;
    text-align: right;
    text-overflow: clip;
}

/* Single vertical rule at the identity | scores boundary; a second rule after
   AVG boxed it into an island, so it whispers with one. */
.leaderboard-table .col-model { border-right: 1px solid var(--hairline); }

/* One header voice across the full row (identity + benchmark columns alike);
   sticky within the wrapper so column context survives long scrolls. */
.leaderboard-table th {
    position: sticky;
    top: 0;
    z-index: 3;
    color: #6b7280;
    background: #fff;
    font-size: 11px;
    line-height: 16px;
    font-weight: 500;
    letter-spacing: .02em;
    cursor: pointer;
    user-select: none;
    box-shadow: 0 1px 0 var(--hairline);
}

.leaderboard-table tbody tr:last-child td { border-bottom: 0; }
.leaderboard-table tbody tr:hover td { background: #fafafa; }

/* Identity columns stay frozen while the score columns scroll under them. */
.leaderboard-table .col-rank,
.leaderboard-table .col-spread,
.leaderboard-table .col-model {
    position: sticky;
    z-index: 2;
    background: #fff;
}
.leaderboard-table .col-rank { left: 0; width: 44px; text-align: left; }
.leaderboard-table .col-spread { left: 44px; width: 67px; text-align: center; }
.leaderboard-table .col-model { left: 111px; width: 240px; text-align: left; }
.leaderboard-table th.col-rank,
.leaderboard-table th.col-spread,
.leaderboard-table th.col-model { z-index: 4; background: #fff; }

/* Sorted column header carries the ink, not just the arrow. */
.leaderboard-table th.col-active {
    color: #111827;
    font-weight: 600;
}

/* Sticky Model seam: elevation cue appears only once content actually slides
   underneath (scrollLeft > 0), so the resting table stays flat and editorial. */
.table-wrapper.scrolled-x .leaderboard-table td.col-model {
    border-right-color: var(--frame);
    box-shadow: 10px 0 12px -6px rgba(0, 0, 0, .22);
}
.table-wrapper.scrolled-x .leaderboard-table th.col-model {
    border-right-color: var(--frame);
    box-shadow: 10px 0 12px -6px rgba(0, 0, 0, .22), 0 1px 0 var(--hairline);
}
.leaderboard-table thead th.col-spread { cursor: default; }

@media (max-width: 900px) {
    .leaderboard-table .col-spread { display: none; }
    .leaderboard-table .col-model { left: 44px; }
    .model-name { font-size: 12.5px; }
}

.rspread {
    color: var(--muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}
/* 44+67+240+140 + 7x88 = 1107px: fits the measured 1115px wrapper at 1512
   (Gradio chrome eats ~32px beyond the raw padding math); 88px keeps the
   srsRANBench header clear (probe had it overflowing at 84); 240px Model
   shows the longest model IDs without ellipsis. */
.leaderboard-table .col-avg { width: 140px; text-align: left; }
.leaderboard-table .col-score { width: 88px; }

/* Header digits share one right edge with the values below (same 10px inset). */
.leaderboard-table th.col-score {
    padding-left: 2px;
    padding-right: 10px;
}

.leaderboard-table th.col-spread {
    padding-left: 4px;
    padding-right: 4px;
}

.rank-num {
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
}

.rank-num.rank-1,
.rank-num.rank-2,
.rank-num.rank-3 { color: var(--ink); }

.model-cell {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-logo {
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
    overflow: hidden;
    border: 1px solid var(--hairline);
    border-radius: 50%;
    object-fit: cover;
}

.model-meta {
    min-width: 0;
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.model-name {
    min-width: 0;
    overflow: hidden;
    padding-right: 12px;
    color: var(--ink);
    font-family: var(--mono) !important;
    font-size: 13px;
    line-height: 20px;
    font-weight: 500;
    text-overflow: ellipsis;
}

.model-sub {
    margin-top: 1px;
    overflow: hidden;
    color: var(--muted);
    font-size: 12px;
    line-height: 16px;
    text-overflow: ellipsis;
}

.avg-wrap {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
}

/* Quiet 6px bar; the 13px/500 number is the dominant ink (Scale's restraint).
   Detail-page chart bars stay 14px, locked. */
.avg-track {
    position: relative;
    flex: 1 1 auto;
    min-width: 48px;
    height: 6px;
    overflow: visible;
    border-radius: 2px;
    background: #f1f2f4;
}

.avg-fill {
    height: 100%;
    border-radius: 2px;
    opacity: .8;
}

.avg-num {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: baseline;
}

.avg-score,
.score-main {
    color: var(--ink);
    font-size: 13px;
    line-height: 20px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum" 1;
}

/* Column leader's score in arena's signal green. */
.score-main.score-lead,
.avg-score.score-lead { color: #38a341; }

.score-stderr {
    margin-left: 6px;
    color: #9ca3af;
    font-size: 11px;
    line-height: 16px;
    font-variant-numeric: tabular-nums;
}

.sort-arrow {
    margin-left: 3px;
    color: var(--ink);
}

.bm-detail-row {
    gap: 64px !important;
    align-items: flex-start !important;
    flex-wrap: nowrap !important;
}

.bm-detail-row:has(.bm-prose-inner div:empty) { display: none !important; }
.bm-prose-inner:empty,
.bm-chart-inner:empty { display: none; }

.bm-prose-wrap {
    min-width: 0 !important;
    max-height: none !important;
    padding: 0 !important;
    flex: 1 1 auto !important;
    overflow: visible !important;
    border: 0 !important;
}

.bm-chart-wrap {
    width: 430px !important;
    min-width: 430px !important;
    max-width: 430px !important;
    max-height: none !important;
    padding: 0 !important;
    flex: 0 0 430px !important;
    overflow: visible !important;
    border: 0 !important;
}

.bm-prose-inner,
.bm-chart-inner {
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
}

.gradio-container .bm-title {
    margin: 0 0 12px !important;
    color: var(--ink) !important;
    font-family: var(--serif) !important;
    font-size: 34px !important;
    line-height: 36px !important;
    font-weight: 500 !important;
    letter-spacing: -.8px !important;
}

.gradio-container .bm-metrics {
    margin: 0 0 16px !important;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.gradio-container .bm-pill {
    padding: 5px 10px;
    border: 1px solid var(--hairline);
    border-radius: 0;
    color: var(--copy);
    background: #fff;
    font-size: 12px !important;
    line-height: 16px;
    font-weight: 500;
    letter-spacing: .35px;
    text-transform: uppercase;
}

.gradio-container .bm-description,
.gradio-container .bm-section-content {
    margin: 0 0 20px !important;
    max-width: 640px;
    color: #374151 !important;
    font-size: 14px !important;
    line-height: 22px !important;
}

.gradio-container .bm-section-heading {
    margin: 24px 0 10px !important;
    padding-top: 12px;
    color: var(--ink) !important;
    font-size: 13px !important;
    line-height: 20px !important;
    font-weight: 600 !important;
    letter-spacing: .8px;
    text-transform: uppercase;
}

.gradio-container .bm-separator {
    margin: 28px 0 !important;
    border: 0;
    border-top: 1px solid var(--hairline);
}

.gradio-container .bm-artifacts {
    margin-bottom: 32px !important;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.gradio-container .bm-artifact-link {
    padding: 6px 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--hairline);
    border-radius: 0;
    color: var(--ink) !important;
    background: #fff;
    font-size: 12px !important;
    line-height: 18px;
    font-weight: 500;
    letter-spacing: .35px;
    text-decoration: none !important;
}

.bm-artifact-link:hover { background: var(--wash); }
.bm-artifact-icon { width: 14px; height: 14px; }

.bar-chart { padding: 0; }

.bar-title {
    margin: 0 0 20px;
    color: var(--ink);
    font-size: 13px;
    line-height: 20px;
    font-weight: 600;
    letter-spacing: .8px;
    text-transform: uppercase;
}

.bar-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.bar-entry {
    min-height: 42px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.bar-rank-badge {
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--muted);
    background: transparent;
    font-size: 12px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.bar-rank-badge.tied-top {
    color: #fff;
    background: var(--ink);
}

.bar-entry-content {
    min-width: 0;
    flex: 1;
}

.bar-header {
    min-height: 22px;
    padding-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--copy);
    font-size: 14px;
    line-height: 20px;
}

.bar-model-info {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 7px;
    flex: 1;
}

.bar-model-info .model-logo {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
}

.bar-model-name {
    min-width: 0;
    overflow: hidden;
    color: var(--ink);
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-score-label {
    margin-left: auto;
    color: var(--ink);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.bar-score-label .score-main { font-size: 14px; }

.bar-track-wrapper,
.bar-track {
    position: relative;
    height: 14px;
}

.bar-track {
    overflow: visible;
    border-radius: 3px;
    background: var(--wash);
}

.bar-fill {
    height: 100%;
    border-radius: 3px;
    opacity: .88;
}

/* CI whisker: thin Scale-style I-beam, centered inside the 14px track.
   Pure strokes only; the old white halo box-shadow punched a notch into the
   bar fill and read as a paint artifact. */
.ci-tick {
    position: absolute;
    top: 4px;
    width: 1px;
    height: 6px;
    background: rgba(15, 23, 42, .55);
    z-index: 3;
}

.ci-connector {
    position: absolute;
    top: 6.5px;
    height: 1px;
    background: rgba(15, 23, 42, .55);
    z-index: 3;
}

.bar-empty {
    padding: 48px;
    color: var(--muted);
    text-align: center;
    font-size: 14px;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d4d4d8; border-radius: 3px; }

@media (max-width: 1279px) {
    .bm-detail-row {
        flex-direction: column-reverse !important;
        gap: 40px !important;
    }

    .bm-chart-wrap {
        width: 100% !important;
        min-width: 0 !important;
        max-width: none !important;
        flex-basis: auto !important;
    }
}

/* Below the desktop rail width the sidebar becomes a horizontal chip bar under
   the header; hiding it entirely left phones with no way to reach benchmarks. */
@media (max-width: 1023px) {
    .ot-content { padding: 24px !important; }
    .ot-main { flex-direction: column !important; }

    .ot-sidebar {
        display: block !important;
        position: static !important;
        width: 100% !important;
        min-width: 0 !important;
        max-width: none !important;
        height: auto !important;
        padding: 10px 12px !important;
        flex: 0 0 auto !important;
        overflow: visible;
        border-bottom: 1px solid var(--hairline);
    }

    .ot-sidebar .html-container > .sidebar-inner {
        display: flex;
        align-items: center;
        gap: 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .ot-sidebar .html-container > .sidebar-inner::-webkit-scrollbar { display: none; }

    .side-section,
    .side-list { display: contents; }
    .side-heading { display: none; }

    .side-link {
        width: auto;
        min-height: 32px;
        padding: 5px 12px !important;
        flex: 0 0 auto;
        border: 1px solid var(--hairline) !important;
        border-radius: 8px !important;
        font-size: 13px !important;
        line-height: 20px !important;
        white-space: nowrap;
    }

    .side-link.active {
        border-color: var(--ink) !important;
        color: var(--ink) !important;
        background: var(--wash) !important;
    }
}

@media (max-width: 767px) {
    .top-nav a,
    .top-nav > span:not(.search) { display: none; }
    .top-nav .search { font-size: 0; }
    .top-nav .search::first-letter { font-size: 16px; }
    .wordmark { font-size: 14px; }
    .ot-content { padding: 24px 12px !important; }
}

/* Phones: a 240px frozen Model column would leave almost no scrollable data. */
@media (max-width: 640px) {
    .leaderboard-table .col-model { width: 180px; }
    .ot-content { padding: 16px 10px !important; }
}

@media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; }
}