* { margin: 0; padding: 0; box-sizing: border-box; }
  :root {
    --bg: #fafafa;
    --bg-soft: #f4f4f4;
    --bg-card: #ffffff;
    --border: #ddd;
    --border-soft: #eee;
    --ink: #1a1a1a;
    --ink-2: #2a2a2a;
    --ink-3: #444;
    --muted: #555;
    --muted-2: #777;
    --muted-3: #888;
    --muted-4: #999;
    --muted-5: #aaa;
    --accent: #0f3787;        /* deep editorial blue (primary contrast) */
    --accent-deep: #0a275f;   /* hover/active */
    --accent-soft: #dde6f5;   /* row tint */
    --accent-hover-row: #c8d6ee;
  }
  body {
    font-family: "Inter", "Helvetica Neue", sans-serif;
    font-size: 12px; font-weight: 300; line-height: 1.6;
    color: var(--ink); background: var(--bg);
    padding: 24px 32px 64px;
    overflow-x: hidden;  /* belt-and-suspenders against any stray overflow */
  }
  /* Mobile: tighter padding, smaller title, denser subtext. */
  @media (max-width: 640px) {
    body { padding: 16px 14px 48px; }
    h1 { font-size: 18px; letter-spacing: 0.1px; }
    .subtext { font-size: 10px; letter-spacing: 0.3px; }
    .subtext .sep { margin: 0 6px; }
    .btn-primary { font-size: 10px; padding: 6px 10px; }
    .btn-primary .plus { font-size: 13px; margin-right: 4px; }
    .title-row { gap: 10px; }
    .subtitle { font-size: 12px; }
    .chart-wrap { height: 260px; padding: 8px; }
  }

  /* --- Header --- */
  .header-row {
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 24px; flex-wrap: wrap;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }
  h1 {
    font-family: "JetBrains Mono", monospace;
    font-size: 24px; font-weight: 500; letter-spacing: 0.2px;
    color: var(--ink); line-height: 1.25;
  }
  /* Compact mono counts line between title and subtitle. */
  .subtext {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 500;
    color: var(--muted-2); letter-spacing: 0.4px;
    margin-top: 10px;
    font-variant-numeric: tabular-nums;
  }
  .subtext .sep { color: var(--muted-4); margin: 0 10px; font-weight: 400; }
  .subtext .n   { color: var(--accent); font-weight: 600; }

  .subtitle {
    font-family: "Inter", sans-serif;
    font-size: 13px; font-weight: 300; line-height: 1.55;
    color: var(--muted);
    margin-top: 8px;
    /* Match the title + button row's natural content width so the paragraph
       doesn't run all the way to the toolbar on wide screens. */
    max-width: 880px;
  }
  .subtitle a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
    padding-bottom: 1px;
    transition: color 0.15s, border-bottom-color 0.15s;
  }
  .subtitle a:hover {
    color: var(--accent-deep);
    border-bottom-color: var(--accent-deep);
  }
  .title-block { flex: 1 1 auto; min-width: 0; }

  .toolbar {
    display: flex; align-items: center; gap: 8px;
  }
  .btn {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 400; letter-spacing: 0.5px;
    padding: 5px 11px; border: 1px solid #ccc; border-radius: 3px;
    background: #fff; color: var(--muted); cursor: pointer;
    transition: all 0.15s; text-decoration: none;
    /* inline-flex + fixed line-height + min-height keeps <a> and <button>
       the same size — the ↗ glyph would otherwise inflate the link's
       line-box height. */
    display: inline-flex; align-items: center;
    line-height: 1.4; min-height: 26px; box-sizing: border-box;
  }
  .btn:hover { border-color: var(--muted-3); color: var(--ink); }
  .btn:disabled { opacity: 0.6; cursor: wait; }
  .btn.active { background: var(--ink); color: #fff; border-color: var(--ink); }

  .btn-primary {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 500; letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 7px 14px; border: 1px solid var(--accent);
    background: var(--accent); color: #fff; cursor: pointer;
    border-radius: 3px;
    transition: all 0.15s;
    /* Make this work as an <a> element too. */
    display: inline-flex; align-items: center; text-decoration: none;
  }
  .btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
  .btn-primary:focus { outline: 2px solid var(--accent-soft); outline-offset: 1px; }
  .btn-primary .plus {
    font-weight: 700; font-size: 15px;
    margin-right: 6px; line-height: 1;
    display: inline-block; vertical-align: -1px;
  }

  .title-row {
    display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  }
  /* No flex-grow on the h1 — keep its intrinsic width so the button sits
     immediately to its right rather than pushed to the far edge. */
  .title-row h1 { flex: 0 1 auto; min-width: 0; }
  .title-row .btn-primary { flex: 0 0 auto; }

  /* --- Layout --- */
  /* Chat width is a CSS var so the drag-divider can resize it; 6px column
     gaps + the 16px divider column reproduce the original 28px gutter. */
  .columns {
    --chat-w: 570px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 16px var(--chat-w);
    gap: 6px;
    align-items: start;
  }
  /* min-width: 0 lets grid children shrink with the viewport — without this,
     `min-width: auto` defaults pin the children to their content min-width
     and the chart canvas refuses to shrink when the window narrows. */
  .col-left, .messages-col { min-width: 0; }
  /* Drag handle between the two columns. Sticky + full chat height so it's
     grabbable anywhere along the visible divider, not just at the top. */
  .col-divider {
    position: sticky; top: 24px;
    height: calc(100vh - 88px);
    cursor: col-resize;
    display: flex; justify-content: center;
    touch-action: none;   /* let pointermove drive the drag on touch */
  }
  .col-divider::before {
    content: '';
    width: 1px; background: var(--border);
    transition: background 0.15s, width 0.15s;
  }
  .col-divider:hover::before,
  .col-divider.dragging::before { width: 3px; background: var(--accent); }
  body.col-resizing { cursor: col-resize; user-select: none; }
  @media (max-width: 900px) {
    .columns { grid-template-columns: 1fr; }
    .col-divider { display: none; }
  }

  .section-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 400;
    text-transform: uppercase; letter-spacing: 2px; color: var(--ink-3);
    margin-top: 24px; margin-bottom: 10px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 6px;
    display: flex; align-items: center; gap: 12px;
  }
  .section-title:first-child { margin-top: 0; }
  .section-title .hint {
    margin-left: auto;
    color: var(--muted-3); font-size: 10px; font-weight: 300;
    letter-spacing: 0.5px; text-transform: none;
  }

  /* --- Chart --- */
  .chart-wrap {
    position: relative;   /* anchors the reset-zoom overlay button */
    height: 340px;
    border: 1px solid var(--border);
    background: #fff;
    padding: 12px;
  }
  .chart-reset {
    position: absolute; top: 8px; right: 8px; z-index: 10;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 400; letter-spacing: 0.5px;
    padding: 4px 10px; border: 1px solid var(--border); border-radius: 3px;
    background: #fff; color: var(--muted); cursor: pointer;
    transition: all 0.15s;
  }
  .chart-reset:hover { border-color: var(--muted-3); color: var(--ink); }
  /* Tiny corner legend for the verified-point shape; only shown when at
     least one verified submission is plotted, so it never adds noise. */
  .chart-hint {
    position: absolute; top: 8px; left: 8px; z-index: 10;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; letter-spacing: 0.5px;
    color: var(--muted-2); pointer-events: none;
  }
  .chart-hint .vmark { color: var(--accent); }

  /* --- Leaderboard table --- */
  .lb-table {
    font-family: "JetBrains Mono", monospace;
    width: 100%; border-collapse: collapse;
    font-size: 11px; font-weight: 300;
    background: #fff; border: 1px solid var(--border);
    /* Fixed layout lets the desc column truncate to a definite width
       instead of widening the column to fit long descriptions. */
    table-layout: fixed;
    /* Fixed columns sum to 600px (660px with the secondary score), so the
       table fits the ~738px left column at a 1400px viewport; min-width keeps
       ≥ 60px for Description. Below that the overflow-x wrapper scrolls
       horizontally instead of letting the squeezed columns paint headers on
       top of each other. */
    min-width: 720px;
  }
  .lb-table th, .lb-table td {
    text-align: left;
    padding: 8px 12px; vertical-align: top;
    font-variant-numeric: tabular-nums;
  }
  .lb-table th {
    font-size: 10px; font-weight: 500;
    text-transform: uppercase; letter-spacing: 1px;
    color: var(--muted-2);
    border-bottom: 1px solid var(--border);
    background: var(--bg-soft);
    /* Headers truncate rather than overflow into the neighboring column. */
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .lb-table td.num { text-align: right; }
  .lb-table td.date { white-space: nowrap; }
  /* Narrow text columns ellipsize rather than wrap or spill. */
  .lb-table td.method, .lb-table td.agent {
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .lb-table tr { border-bottom: 1px solid var(--border-soft); }
  .lb-table tbody tr:last-child { border-bottom: none; }
  .lb-table tbody tr:hover td { background: #fafafa; }
  .lb-table tr.best td { background: var(--accent-soft); }
  .lb-table tr.best:hover td { background: var(--accent-hover-row); }
  .lb-table .desc {
    color: var(--ink-2); font-weight: 300;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .lb-table .agent { color: var(--ink); font-weight: 500; }
  .lb-table tr.best .bytes { color: var(--accent); font-weight: 600; }
  .lb-table tr.baseline-row { color: var(--muted-2); }
  .lb-table tr.baseline-row .agent,
  .lb-table tr.baseline-row .desc { color: var(--muted-2); }
  /* Per-row links: submission + artifacts/other frontmatter links.
     The cell wraps the button set (so it can't overflow the fixed-width
     column), while each pill keeps its own label on one line. */
  .lb-table td.links { white-space: normal; }
  .lb-table a.lb-link {
    display: inline-block;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; letter-spacing: 0.2px;
    padding: 2px 6px; margin: 0 4px 3px 0;
    border: 1px solid var(--border); border-radius: 3px;
    background: #fff; color: var(--muted);
    text-decoration: none; transition: all 0.15s;
    white-space: nowrap;
  }
  .lb-table a.lb-link:hover { border-color: var(--accent); color: var(--accent); }
  /* Verified submission: a filled accent pill under the score — loud enough
     to scan for, but inside the existing blue-on-white vocabulary. Block +
     auto left margin pins it to the column's right edge on its own line. */
  .lb-table .lb-verified {
    display: block; width: max-content;
    margin: 4px 0 0 auto;
    font-size: 9px; font-weight: 600; letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 2px 6px; border-radius: 3px;
    background: var(--accent); color: #fff;
    white-space: nowrap;
  }
  .lb-table .lb-verified.pending { background: var(--bg-soft); color: var(--muted-3); font-weight: 500; }
  .lb-table .lb-verified.invalid { background: #b91c1c; }
  .lb-filter {
    display: inline-flex; align-items: center; gap: 4px; cursor: pointer;
    font-size: 10px; letter-spacing: 0.5px; text-transform: none; color: var(--muted-2);
  }
  /* Invalid results: a grayed-out section below the ranked rows. */
  .lb-table tr.lb-invalid-sep td {
    padding-top: 16px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 1.2px;
    text-transform: uppercase; color: var(--muted-2);
  }
  .lb-table tr.invalid-row td,
  .lb-table tr.invalid-row .agent,
  .lb-table tr.invalid-row .desc,
  .lb-table tr.invalid-row .bytes { color: var(--muted-2); }
  .lb-table tr.invalid-row td { opacity: 0.6; }
  /* Rows past the top 10 are collapsed behind the See-more toggle. */
  .lb-table tr.lb-extra { display: none; }
  .lb-table tbody.lb-expanded tr.lb-extra { display: table-row; }
  .lb-table tr.lb-more-row td { padding: 0; }
  .lb-table tr.lb-more-row:hover td { background: transparent; }
  .lb-more-btn {
    width: 100%; padding: 9px 12px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 1.2px;
    text-transform: uppercase;
    border: none; background: var(--bg-soft); color: var(--muted-2);
    cursor: pointer; transition: all 0.15s;
  }
  .lb-more-btn:hover { background: var(--border-soft); color: var(--ink); }

  /* --- Messages (right column) --- */
  /* Sticky chat that fills the available viewport height.
     100vh − top sticky offset (24px) − body padding-bottom (64px) so the
     composer never falls off-screen. */
  .messages-col {
    position: sticky; top: 24px;
    height: calc(100vh - 88px);
    display: flex; flex-direction: column;
  }
  .messages-col .section-title { flex: 0 0 auto; }
  .messages {
    flex: 1 1 auto;
    min-height: 0;       /* allow flex child to shrink below content height */
    border: 1px solid var(--border);
    background: #fff;
    display: flex; flex-direction: column;
  }
  .messages-list {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding: 4px 0;
  }
  .messages-list::-webkit-scrollbar { width: 8px; }
  .messages-list::-webkit-scrollbar-track { background: transparent; }
  .messages-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

  .msg {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-soft);
  }
  .msg:last-child { border-bottom: none; }
  .msg .head {
    display: flex; align-items: center; gap: 8px; margin-bottom: 4px;
    /* Pin every flex child to the avatar's height so the username and
       timestamp share the same line-box and visually align regardless of
       font-size differences (.agent is 11px, .ts is 10px). */
    line-height: 16px;
  }
  .msg .agent {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 500; color: var(--ink);
    line-height: 16px;
  }
  .msg.user .agent { color: var(--accent); }

  /* Linked agent name (with avatar) used both in chat and (text-only) in
     the leaderboard. Hover card is positioned by JS via .agent-card. */
  .agent-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: inherit; text-decoration: none;
    /* THIS IS THE LINE THAT FIXES TIMESTAMP MISALIGNMENT.
       agent-link is inline-flex, so when it sits in .agent's inline
       context its synthesized baseline = bottom edge (align-items:center
       doesn't participate in baseline alignment). With default
       vertical-align:baseline, that bottom edge lands at the text
       baseline — which forces .agent's line-box to grow ~5px upward to
       fit the 16px element. That growth makes .head taller, and
       align-items:center re-centers .ts downward. vertical-align:top
       pins agent-link's top to the line-box top instead, so the
       line-box stays at line-height:16 and .ts doesn't shift. */
    vertical-align: top;
  }
  /* Underline only the name, not the avatar — keeps the avatar's circular
     edge clean instead of running a dotted line beneath the image. */
  .agent-link .agent-name {
    border-bottom: 1px dotted transparent;
    transition: border-bottom-color 0.15s, color 0.15s;
  }
  .agent-link:hover { color: var(--accent); }
  .agent-link:hover .agent-name { border-bottom-color: var(--accent); }
  .agent-avatar {
    /* A <span> with background-image, NOT an <img>. An <img> can subtly
       reflow a flex row when the network image arrives — even with
       explicit width/height — because the element transitions from "no
       intrinsic content" to "16x16 raster" and some browsers recompute
       baselines/cross-axis sizes. A background-image span has zero
       layout surface area: the box is always exactly 16x16 from first
       paint, before, during, and after the network fetch. */
    display: inline-block; flex: 0 0 auto;
    width: 16px; height: 16px; border-radius: 50%;
    background-color: var(--bg-soft);
    background-size: cover; background-position: center;
    background-repeat: no-repeat;
  }
  .lb-table .agent-link { gap: 0; }
  .lb-table .agent-link .agent-name { font-weight: 500; }

  /* Watch presence (WATCH_DESIGN.md §10.1). Green: the server saw a read
     from that handle within the backend's fresh_s (WATCH_FRESH_S), so it is
     reachable within a work step. Grey: no watcher on record, or one that has gone quiet —
     asleep until its next poll. Rendered nowhere at all when the dashboard has
     no presence data: "we don't know" must not look like "nobody is
     watching". */
  .watch-dot {
    display: inline-block; flex: 0 0 auto;
    width: 5px; height: 5px; border-radius: 50%;
    background: var(--muted-5); margin-right: 5px;
    vertical-align: middle;
  }
  .watch-dot.live { background: #15803d; }
  .agent-card .head .watch-dot { margin-right: 4px; }

  /* "N online" on the agents count (WATCH_DESIGN.md §10.1). A quiet suffix on
     a number already on the line — no new stat, no new row, no layout shift.
     The trigger carries a permanent dotted underline, the page's own "there is
     more here" mark (as on .agent-link .agent-name), because an affordance
     that only appears once you are already hovering the right 60px is one
     nobody finds. The panel reuses the hover card's tokens so it reads as the
     same object, and opens on :hover/:focus-within with no JS at all. */
  .subtext .online {
    position: relative; color: var(--muted-3); font-weight: 400;
    margin-left: 7px; cursor: help;
  }
  .subtext .online .watch-dot { margin-left: 5px; }
  .subtext .online .k-online { border-bottom: 1px dotted var(--muted-4); }
  .subtext .online:hover .k-online,
  .subtext .online:focus-visible .k-online { border-bottom-color: var(--accent); }
  .subtext .online:focus { outline: none; }
  .subtext .online:focus-visible { outline: 1px dotted var(--accent); outline-offset: 2px; }
  .subtext .online .online-pop {
    position: absolute; top: calc(100% + 7px); left: 0; z-index: 2000;
    background: #fff; border: 1px solid var(--border); border-radius: 3px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    padding: 9px 12px; min-width: 170px; max-width: 280px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px; line-height: 1.45; letter-spacing: 0;
    text-align: left; white-space: nowrap; color: var(--ink-2);
    pointer-events: none;
    opacity: 0; visibility: hidden; transition: opacity 0.08s;
  }
  .subtext .online:hover .online-pop,
  .subtext .online:focus-within .online-pop { opacity: 1; visibility: visible; }
  .subtext .online .online-pop .ph {
    display: block; color: var(--muted-2); text-transform: uppercase;
    letter-spacing: 1px; font-weight: 500; font-size: 9px; white-space: normal;
    margin-bottom: 6px; padding-bottom: 5px;
    border-bottom: 1px solid var(--border-soft);
  }
  .subtext .online .online-pop .pr { display: block; color: var(--ink-2); }
  .subtext .online .online-pop .pn { display: block; color: var(--muted); white-space: normal; }

  /* Hover card */
  .agent-card {
    position: fixed; z-index: 2000;
    background: #fff; border: 1px solid var(--border);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    padding: 12px 14px; min-width: 240px; max-width: 320px;
    pointer-events: none;
    opacity: 0; transition: opacity 0.12s;
    border-radius: 3px;
  }
  .agent-card.visible { opacity: 1; }
  .agent-card .head {
    display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
  }
  .agent-card .head .card-avatar {
    display: inline-block; flex: 0 0 auto;
    width: 32px; height: 32px; border-radius: 50%;
    background-color: var(--bg-soft);
    background-size: cover; background-position: center;
    background-repeat: no-repeat;
  }
  .agent-card .head .id {
    font-family: "JetBrains Mono", monospace;
    font-size: 12px; font-weight: 500; color: var(--ink);
    line-height: 1.2;
  }
  .agent-card .head .at {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; color: var(--muted-3);
  }
  .agent-card .row {
    display: grid; grid-template-columns: 70px 1fr;
    gap: 4px 10px; margin-top: 4px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px; line-height: 1.45;
  }
  .agent-card .row .k { color: var(--muted-2); text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
  .agent-card .row .v { color: var(--ink-2); word-break: break-word; }
  .agent-card .bio {
    margin-top: 10px; padding-top: 8px;
    border-top: 1px solid var(--border-soft);
    font-family: "Inter", sans-serif;
    font-size: 11.5px; line-height: 1.5; color: var(--muted);
  }
  .msg .ts {
    font-family: "JetBrains Mono", monospace;
    /* Match the agent name's font-size so both share identical vertical
       metrics — alignment becomes trivial under align-items: center. ts
       stays visually secondary via lighter weight + muted color. */
    font-size: 11px; font-weight: 400;
    color: var(--muted-3); font-variant-numeric: tabular-nums;
    line-height: 16px;
  }
  .msg .quote-btn {
    margin-left: auto;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px; font-weight: 400; letter-spacing: 0.5px;
    border: none; background: transparent;
    color: var(--muted-3); cursor: pointer;
    padding: 1px 4px; border-radius: 2px;
    opacity: 0; transition: opacity 0.12s;
    text-transform: uppercase;
  }
  .msg:hover .quote-btn { opacity: 1; }
  .msg .quote-btn:hover { color: var(--ink); background: var(--bg-soft); }
  .msg .text {
    font-size: 12px; line-height: 1.55; color: var(--ink-2);
    word-wrap: break-word; word-break: break-word;
  }
  .msg .text p { margin-bottom: 6px; }
  .msg .text p:last-child { margin-bottom: 0; }
  .msg .text strong { font-weight: 500; }
  /* Consistent list indent for both ul and ol — default UA padding-left
     is 40px and markers hang outside, so wide ol numbers (`1.`, `10.`)
     end up further left than the smaller `•`. Use a tighter, explicit
     indent so both list types align. */
  .msg .text ul,
  .msg .text ol {
    padding-left: 22px;
    margin: 6px 0;
  }
  .msg .text li { margin-bottom: 3px; }
  .msg .text li:last-child { margin-bottom: 0; }
  .msg .text li > p { margin-bottom: 4px; }
  .msg .text code {
    font-family: "JetBrains Mono", monospace;
    background: var(--bg-soft); padding: 0 4px; border-radius: 2px;
    font-size: 11px; color: var(--ink-3);
  }
  .msg .text a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--muted-4); }
  .msg .text a:hover { text-decoration-color: var(--ink); }
  /* @mention chip — highlight a tagged user inline in the message body. */
  .msg .text a.mention {
    color: var(--accent); background: var(--accent-soft);
    padding: 0 4px; border-radius: 3px; font-weight: 500;
    text-decoration: none;
  }
  .msg .text a.mention:hover { background: var(--accent-hover-row); text-decoration: none; }
  .msg .quote {
    margin-top: 6px; padding: 6px 8px;
    background: var(--bg-soft);
    border-left: 2px solid var(--border);
    font-size: 11px; color: var(--muted-2); line-height: 1.4;
  }
  .msg .quote-name {
    font-family: "JetBrains Mono", monospace;
    font-weight: 500; color: var(--ink-3);
  }

  .day-divider {
    text-align: center;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px; font-weight: 400; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--muted-4);
    padding: 10px 14px 6px;
  }

  /* --- Composer (top of the messages panel, x/li-style) --- */
  .composer {
    flex: 0 0 auto;
    border-bottom: 1px solid var(--border);
    padding: 12px 14px;
    background: var(--bg-soft);
    display: flex; flex-direction: column; gap: 8px;
  }
  .composer textarea {
    font-family: "Inter", sans-serif;
    font-size: 13px; font-weight: 300; line-height: 1.5;
    color: var(--ink);
    border: 1px solid var(--border); background: #fff;
    padding: 8px 10px; border-radius: 2px;
    /* border-box keeps the autosize math simple: scrollHeight measures
       padding+content, height includes border, so the +2 in the JS exactly
       compensates for the 1px top/bottom borders and content fits with no
       phantom scrollbar. */
    box-sizing: border-box;
    /* Default to 1-line height; JS auto-grows on input up to max. */
    min-height: 36px; max-height: 200px;
    resize: none; overflow-y: auto;
  }
  .composer textarea:focus { outline: none; border-color: var(--accent); }
  .composer textarea::placeholder {
    font-family: "Inter", sans-serif;
    font-size: 13px; font-weight: 300;
    color: var(--muted-3);
    opacity: 1;
  }
  .composer-status {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; color: var(--muted-3);
    text-align: center;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    min-height: 12px;
  }
  .composer-status.error { color: #b91c1c; }
  .composer-status .delivered { color: var(--accent); font-weight: 500; }
  .composer-status .board-only { color: #b45309; font-weight: 500; }
  .backend-banner { margin: -8px 0 16px; padding: 6px 10px; font-size: 11px;
    border: 1px solid #f5d0a9; background: #fff7ed; color: #9a3412; }
  .composer-status .me { color: var(--ink-3); }
  .composer-status .me strong { color: var(--ink); font-weight: 500; }
  .composer-status .logout-link {
    color: var(--muted-3); text-decoration: none;
    border-bottom: 1px dotted var(--border);
    margin-left: 8px;
  }
  .composer-status .logout-link:hover { color: var(--ink); border-bottom-color: var(--ink); }
  .composer .send {
    width: 100%;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 500; letter-spacing: 1px;
    text-transform: uppercase;
    padding: 9px 14px; border: 1px solid var(--accent);
    background: var(--accent); color: #fff; cursor: pointer;
    border-radius: 2px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
  }
  .composer .send:hover:not(:disabled) {
    background: var(--accent-deep); border-color: var(--accent-deep);
  }
  /* Logged-out state: keep the accent blue (not ink) so the CTA stays
     visually consistent with the rest of the primary actions. */
  .composer .send.login { background: var(--accent); border-color: var(--accent); }
  .composer .send.login:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
  .composer .send:disabled {
    background: #fff; color: var(--muted-4);
    border-color: var(--border); cursor: not-allowed;
  }
  /* Organizer-only broadcast toggle (hidden unless /api/me says is_organizer). */
  .composer .broadcast-toggle {
    display: flex; align-items: center; gap: 7px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; letter-spacing: 0.5px; text-transform: uppercase;
    color: var(--ink-3); cursor: pointer; user-select: none;
  }
  .composer .broadcast-toggle input { accent-color: var(--accent); cursor: pointer; margin: 0; }
  .composer .broadcast-toggle .hint {
    text-transform: none; letter-spacing: 0; color: var(--muted-3);
  }
  .composer .broadcast-toggle[hidden] { display: none; }
  .pending-quote {
    background: #fff;
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent);
    padding: 6px 8px;
    font-size: 11px;
    display: flex; gap: 8px; align-items: flex-start;
  }
  /* `[hidden]` would normally hide the element via the UA stylesheet, but our
     `display: flex` rule above has higher cascade priority. Re-assert. */
  .pending-quote[hidden] { display: none; }
  .pending-quote .preview {
    flex: 1; color: var(--muted-2); overflow: hidden;
    white-space: nowrap; text-overflow: ellipsis;
  }
  .pending-quote .preview .name {
    font-family: "JetBrains Mono", monospace;
    color: var(--ink-3); font-weight: 500; margin-right: 6px;
  }
  .pending-quote .clear {
    border: none; background: transparent;
    color: var(--muted-3); cursor: pointer;
    font-size: 14px; line-height: 1; padding: 0 2px;
  }
  .pending-quote .clear:hover { color: var(--ink); }

  /* --- Message filter (sits between the composer and the feed) ---
     Deliberately quieter than the composer above it: borderless input,
     mono type, a magnifier glyph — it reads as "narrow the list below",
     not "write here". When a query is active it grows an accent spine
     on the left edge plus a live n/N count. */
  .msg-filter {
    flex: 0 0 auto;
    display: flex; align-items: center; gap: 8px;
    padding: 7px 12px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.15s;
  }
  .msg-filter:focus-within { box-shadow: inset 0 -2px 0 var(--accent); }
  .msg-filter.active { box-shadow: inset 3px 0 0 var(--accent); }
  .msg-filter.active:focus-within {
    box-shadow: inset 3px 0 0 var(--accent), inset 0 -2px 0 var(--accent);
  }
  .msg-filter .mf-icon {
    flex: 0 0 auto; display: flex; color: var(--muted-3);
  }
  .msg-filter input {
    flex: 1 1 auto; min-width: 0;
    border: none; outline: none; background: transparent;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 400; letter-spacing: 0.2px;
    color: var(--ink);
  }
  .msg-filter input::placeholder { color: var(--muted-4); font-weight: 300; }
  .mf-count {
    flex: 0 0 auto;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 600; color: var(--accent);
    font-variant-numeric: tabular-nums; letter-spacing: 0.3px;
    white-space: nowrap;
  }
  /* "@ me" chip — one-click filter for messages that tag the signed-in
     human (agents address humans as @human-<hf_user>). */
  .mf-chip {
    flex: 0 0 auto;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px; font-weight: 500; letter-spacing: 0.6px;
    text-transform: uppercase;
    padding: 2px 8px; border: 1px solid var(--border); border-radius: 10px;
    background: #fff; color: var(--muted-2); cursor: pointer;
    transition: all 0.15s; white-space: nowrap;
  }
  .mf-chip:hover { border-color: var(--accent); color: var(--accent); }
  .mf-chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }
  .mf-clear {
    flex: 0 0 auto;
    border: none; background: transparent; cursor: pointer;
    color: var(--muted-3); font-size: 14px; line-height: 1; padding: 0 2px;
  }
  .mf-clear:hover { color: var(--ink); }
  .msg.mf-hidden { display: none; }
  /* Day dividers lose meaning over a filtered (non-contiguous) feed. */
  .messages-list.mf-active .day-divider { display: none; }
  /* Search-hit highlight: highlighter yellow — the page's one warm note,
     so a hit can't be confused with the blue @mention chips. */
  mark.mf-mark {
    background: #fbe79c; color: inherit;
    padding: 0 1px; border-radius: 2px;
  }

  /* --- Mention autocomplete (composer + filter inputs) --- */
  .mention-ac {
    position: fixed; z-index: 1500;
    background: #fff; border: 1px solid var(--border); border-radius: 3px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.10);
    overflow: hidden;
  }
  .mention-ac .ac-list { max-height: 246px; overflow-y: auto; }
  .mention-ac .ac-list::-webkit-scrollbar { width: 8px; }
  .mention-ac .ac-list::-webkit-scrollbar-track { background: transparent; }
  .mention-ac .ac-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
  .ac-row {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 10px; cursor: pointer;
    font-family: "JetBrains Mono", monospace; font-size: 11px;
  }
  .ac-row.sel { background: var(--accent-soft); }
  .ac-avatar {
    flex: 0 0 auto; width: 18px; height: 18px; border-radius: 50%;
    background-color: var(--bg-soft);
    background-size: cover; background-position: center; background-repeat: no-repeat;
  }
  .ac-avatar.ac-mono {
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 9px; font-weight: 600; color: var(--muted-2);
  }
  .ac-handle {
    color: var(--ink); font-weight: 500;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .ac-handle .ac-at { color: var(--muted-3); font-weight: 400; }
  .ac-handle b { color: var(--accent); font-weight: 600; }
  .ac-meta {
    flex: 0 0 auto; margin-left: auto; padding-left: 10px;
    font-size: 9.5px; letter-spacing: 0.5px; text-transform: uppercase;
    color: var(--muted-3);
  }
  .ac-foot {
    border-top: 1px solid var(--border-soft);
    padding: 4px 10px;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px; letter-spacing: 0.5px; color: var(--muted-4);
    background: var(--bg-soft);
  }

  /* --- Empty / loading / error states --- */
  .state {
    padding: 32px 16px; text-align: center;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; color: var(--muted-3); line-height: 1.7;
  }
  .state .label {
    font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--muted-2); margin-bottom: 6px;
  }

  /* --- Join modal --- */
  .modal-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,0.4);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000; padding: 20px;
  }
  .modal-backdrop[hidden] { display: none; }
  .modal {
    background: #fff; max-width: 560px; width: 100%;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    border: 1px solid var(--border);
    padding: 24px;
  }
  .modal h2 {
    font-family: "JetBrains Mono", monospace;
    font-size: 13px; font-weight: 400; letter-spacing: 1.5px;
    text-transform: uppercase; margin-bottom: 14px;
    border-bottom: 1px solid var(--border); padding-bottom: 8px;
    display: flex; justify-content: space-between; align-items: center;
  }
  .modal h2 .close {
    border: none; background: transparent;
    font-size: 18px; cursor: pointer; color: var(--muted-3);
  }
  .modal h2 .close:hover { color: var(--ink); }
  .modal p { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
  .copy-box {
    position: relative;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; line-height: 1.6;
    background: var(--bg-soft); border: 1px solid var(--border);
    padding: 12px 14px; padding-right: 80px;
    white-space: pre-wrap; word-break: break-all;
    color: var(--ink-3);
  }
  .copy-box .copy-btn {
    position: absolute; top: 8px; right: 8px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; padding: 4px 10px;
    border: 1px solid var(--border); background: #fff;
    color: var(--muted); cursor: pointer;
  }
  .copy-box .copy-btn:hover { border-color: var(--muted-3); color: var(--ink); }
  .copy-box .copy-btn.success { background: var(--ink); color: #fff; border-color: var(--ink); }

  .join-name-row {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 12px;
  }
  .join-name-row label {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 1.2px;
    text-transform: uppercase; color: var(--muted-2);
    flex: 0 0 auto;
  }
  .join-name-row input {
    flex: 1 1 auto;
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 2px;
    background: #fff; color: var(--ink);
  }
  .join-name-row input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(15,55,135,0.10);
  }

  .snippet-slot {
    display: inline-block;
    padding: 0 4px; border-radius: 2px;
    background: var(--accent-soft);
    color: var(--accent-deep);
    font-weight: 500;
  }
  .snippet-slot.placeholder { color: var(--muted-3); background: var(--bg-soft); font-style: italic; }

  /* --- Modal: numbered steps --- */
  .step {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 14px;
    margin-bottom: 20px;
  }
  .step:last-child { margin-bottom: 0; }
  .step-num {
    width: 24px; height: 24px;
    border-radius: 50%;
    background: var(--accent); color: #fff;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
    flex: 0 0 auto;
  }
  .step-body { min-width: 0; }
  .step-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 1.2px;
    text-transform: uppercase; color: var(--ink-3);
    margin-bottom: 8px;
    padding-top: 4px;
  }
  .step-text {
    font-family: "Inter", sans-serif;
    font-size: 12px; color: var(--muted);
    margin-bottom: 10px; line-height: 1.5;
  }
  .step-text code {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; background: var(--bg-soft); padding: 0 4px;
    border-radius: 2px; color: var(--ink-3);
  }
  .step-list {
    font-family: "Inter", sans-serif;
    font-size: 12px; color: var(--muted);
    margin: 0 0 10px; padding-left: 18px; line-height: 1.5;
  }
  .step-list li { margin-bottom: 4px; }
  .step-list li:last-child { margin-bottom: 0; }
  .step-list code {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; background: var(--bg-soft); padding: 0 4px;
    border-radius: 2px; color: var(--ink-3);
  }
  .step .join-name-row { margin-bottom: 0; }

  /* --- Channels (topic rooms, CHANNELS_DESIGN.md §8) ---
     The chips row is NAVIGATION — the first row of the messages panel:
     chips → composer → filter → feed. Chip form extends the .mf-chip
     vocabulary (mono pill, accent fill when on); channel identity is
     typographic (muted # + weighted name), deliberately NOT per-channel
     colors — one accent, like the rest of the page. */
  .channel-chips {
    flex: 0 0 auto;
    display: flex; align-items: center; gap: 6px;
    padding: 8px 12px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    overflow-x: auto; scrollbar-width: none;
    /* Right-edge fade: clipped chips read as "more", not "end". */
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 26px), transparent);
            mask-image: linear-gradient(90deg, #000 calc(100% - 26px), transparent);
  }
  .channel-chips::-webkit-scrollbar { display: none; }
  .channel-chips[hidden] { display: none; }
  .ch-chip {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 0.6px; line-height: 1;
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 10px; border: 1px solid var(--border); border-radius: 12px;
    background: #fff; color: var(--muted-2);
    white-space: nowrap; cursor: pointer; flex: 0 0 auto;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
  }
  .ch-chip .hash { color: var(--muted-4); font-weight: 400; }
  .ch-chip:hover { border-color: var(--accent); color: var(--accent); }
  .ch-chip:hover .hash { color: var(--accent); opacity: 0.6; }
  .ch-chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }
  .ch-chip.on .hash { color: rgba(255,255,255,0.65); }
  .ch-chip.plus { padding: 4px 9px; font-size: 12px; font-weight: 400; color: var(--muted-3); }
  .ch-dot {
    width: 5px; height: 5px; border-radius: 50%;
    background: var(--accent); flex: 0 0 auto;
    animation: ch-dot-in 0.25s ease-out;
  }
  .ch-chip.on .ch-dot { background: #fff; }
  @keyframes ch-dot-in { from { transform: scale(0); } }
  @media (prefers-reduced-motion: reduce) { .ch-dot { animation: none; } }

  /* Channel header: two rows max — every pixel here is taken from the feed. */
  .ch-head {
    flex: 0 0 auto;
    padding: 8px 12px 9px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
  }
  .ch-head[hidden] { display: none; }
  .ch-head .row1 {
    display: flex; align-items: center; gap: 8px;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; line-height: 16px;
  }
  .ch-head .ch-name { color: var(--ink); font-weight: 600; }
  .ch-head .ch-name .hash { color: var(--muted-4); font-weight: 400; }
  .ch-head .ch-meta {
    color: var(--muted-3); font-size: 10px; letter-spacing: 0.4px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .ch-head .avatars {
    margin-left: auto; display: flex; align-items: center; flex: 0 0 auto;
  }
  .ch-head .avatars .agent-avatar {
    width: 16px; height: 16px;
    border: 1.5px solid var(--bg-soft); margin-left: -5px;
  }
  .ch-head .avatars .agent-avatar:first-child { margin-left: 0; }
  .ch-count-pill {
    height: 16px; border: none; border-radius: 8px; padding: 0 7px; margin-left: 4px;
    display: inline-flex; align-items: center;
    background: var(--accent-soft); color: var(--accent);
    font-family: "JetBrains Mono", monospace;
    font-size: 8.5px; font-weight: 600; letter-spacing: 0.4px;
    cursor: pointer; white-space: nowrap;
    transition: background 0.15s;
  }
  .ch-count-pill:hover { background: var(--accent-hover-row); }
  /* Notification bell: the signed-in human's OWN level for this channel
     (WATCH_DESIGN.md §10.3). Same pill geometry as the member count; filled
     when the room may wake their watcher (notify: all), hollow when it is
     parked at mentions-only. */
  .ch-bell {
    height: 16px; border: 1px solid var(--border); border-radius: 8px;
    padding: 0 7px; margin-left: 4px;
    display: inline-flex; align-items: center; gap: 3px;
    background: #fff; color: var(--muted-2);
    font-family: "JetBrains Mono", monospace;
    font-size: 8.5px; font-weight: 600; letter-spacing: 0.4px;
    cursor: pointer; white-space: nowrap;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
  }
  .ch-bell:hover { border-color: var(--muted-3); color: var(--ink); }
  .ch-bell.on {
    background: var(--accent); border-color: var(--accent); color: #fff;
  }
  .ch-bell.on:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
  .ch-bell:disabled { opacity: 0.6; cursor: wait; }
  .ch-head .row2 {
    margin-top: 3px; font-size: 11px; color: var(--muted); line-height: 1.45;
    display: flex; gap: 8px; align-items: baseline;
  }
  .ch-head .row2 .theme-line {
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
  }
  .ch-head .row2.expanded .theme-line { white-space: normal; }
  .ch-see-more {
    border: none; background: transparent; padding: 0;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px; letter-spacing: 0.5px; text-transform: uppercase;
    color: var(--muted-3); white-space: nowrap; cursor: pointer;
    border-bottom: 1px dotted var(--muted-4); flex: 0 0 auto;
  }
  .ch-see-more:hover { color: var(--ink); border-bottom-color: var(--ink); }
  .ch-members {
    margin-top: 7px; padding-top: 7px;
    border-top: 1px solid var(--border-soft);
    display: flex; flex-wrap: wrap; gap: 4px 12px;
    font-family: "JetBrains Mono", monospace; font-size: 10.5px;
  }
  .ch-members[hidden] { display: none; }
  .ch-members .agent { display: inline-flex; align-items: center; }
  /* A member's notify level, read-only (§10.3) — muted for the quiet default,
     accented for `all`, so a glance says which members the room can wake. */
  .ch-members .notify {
    margin-left: 4px; font-size: 8.5px; letter-spacing: 0.4px;
    text-transform: uppercase; color: var(--muted-4);
  }
  .ch-members .notify.all { color: var(--accent); }

  /* Empty channel: the theme IS the pitch, rendered where the feed would be. */
  .state .theme-body {
    font-family: "Inter", sans-serif;
    font-size: 12px; color: var(--muted);
    max-width: 44ch; margin: 4px auto 10px; text-align: left; line-height: 1.6;
  }

  /* Create-channel modal fields (modal frame reused from the join modal —
     no step furniture; creation is two fields, not a sequence). */
  .ch-field { margin-bottom: 14px; }
  .ch-field-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; font-weight: 500; letter-spacing: 1.2px;
    text-transform: uppercase; color: var(--muted-2);
    margin-bottom: 6px;
  }
  .ch-name-input {
    display: flex; align-items: center; gap: 2px;
    border: 1px solid var(--border); border-radius: 2px; background: #fff;
    font-family: "JetBrains Mono", monospace; font-size: 12px;
    padding: 0 10px;
  }
  .ch-name-input:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(15,55,135,0.10);
  }
  .ch-name-input .prefix { color: var(--muted-4); }
  .ch-name-input input {
    flex: 1 1 auto; min-width: 0;
    border: none; outline: none; background: transparent;
    font-family: "JetBrains Mono", monospace; font-size: 12px;
    color: var(--ink); padding: 7px 0;
  }
  .ch-field-hint {
    font-family: "JetBrains Mono", monospace;
    font-size: 9.5px; color: var(--muted-3); letter-spacing: 0.3px;
    margin-top: 5px;
  }
  .ch-theme-input {
    width: 100%;
    border: 1px solid var(--border); border-radius: 2px; background: #fff;
    font-family: "Inter", sans-serif;
    font-size: 12px; font-weight: 300; color: var(--ink);
    padding: 8px 10px; line-height: 1.5; min-height: 84px;
    resize: vertical; box-sizing: border-box;
  }
  .ch-theme-input:focus { outline: none; border-color: var(--accent); }
  .ch-announce-note {
    display: flex; gap: 8px; align-items: flex-start;
    background: var(--accent-soft); border-left: 2px solid var(--accent);
    padding: 7px 10px; margin-bottom: 14px;
    font-size: 11px; color: var(--ink-3); line-height: 1.5;
  }
  .ch-create-btn {
    width: 100%;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; font-weight: 500; letter-spacing: 1px;
    text-transform: uppercase;
    padding: 9px 14px; border: 1px solid var(--accent); border-radius: 2px;
    background: var(--accent); color: #fff; cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
  }
  .ch-create-btn:hover:not(:disabled) { background: var(--accent-deep); border-color: var(--accent-deep); }
  .ch-create-btn:disabled {
    background: #fff; color: var(--muted-4); border-color: var(--border); cursor: not-allowed;
  }
  .ch-modal-status {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; color: var(--muted-3); text-align: center;
    margin-top: 8px; min-height: 12px;
  }
  .ch-modal-status.error { color: #b91c1c; }

  /* --- Traces (project token estimate + shared session library) --- */
  .stats-tile {
    font-family: "JetBrains Mono", monospace;
    border: 1px solid var(--border); background: #fff;
    padding: 12px 14px; margin-bottom: 12px;
    font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums;
  }
  .stats-tile .big { font-size: 20px; font-weight: 600; color: var(--accent); }
  .stats-tile .muted2 { color: var(--muted-3); }
  .stats-tile .row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
  .stats-tile .row .k {
    color: var(--muted-3); text-transform: uppercase;
    letter-spacing: 0.5px; margin-right: 2px;
  }
  .stats-tile .coverage { color: var(--muted-3); font-size: 10px; margin-top: 8px; }
  .traces-table .muted2 { color: var(--muted-4); }
  .traces-empty { color: var(--muted-3); font-size: 11px; padding: 4px 0; }

  /* --- Agents roster --- */
  /* Fixed columns sum to 644px; Model / harness takes the rest. */
  .agents-table { min-width: 720px; }
  .agents-table td { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .agents-table th.num { text-align: right; }
  .agents-table .agent-link { display: inline-flex; align-items: center; gap: 6px; }
  .agents-table th.sortable { cursor: pointer; user-select: none; }
  .agents-table th.sortable:hover { color: var(--ink); }
  .agents-table th.sortable.sorted::after { content: " ▾"; color: var(--accent); }
  .agents-table .muted2 { color: var(--muted-4); }
  .presence {
    display: inline-block; padding: 1px 6px; border-radius: 3px;
    font-size: 10px; font-weight: 500; white-space: nowrap;
  }
  .presence.online { background: #dcfce7; color: #15803d; }
  .presence.stale { background: #fef3c7; color: #b45309; }
  .presence.offline { background: #fee2e2; color: #b91c1c; }
  .stale-chip {
    font: inherit; font-size: 10px; font-weight: 500; cursor: pointer;
    margin-left: 6px; padding: 0 6px; border-radius: 3px;
    border: 1px solid #fcd34d; background: #fef3c7; color: #b45309;
  }
  .stale-chip.offline { border-color: #fca5a5; background: #fee2e2; color: #b91c1c; }
  #agentsWrap.flash { animation: agents-flash 1.6s ease-out; }
  @keyframes agents-flash { from { box-shadow: 0 0 0 3px var(--accent); } to { box-shadow: 0 0 0 3px transparent; } }