@layer modules {
  /* Traffic: what callers did in an environment, where they stopped, and each session step by step. */
  /* Staging and live traffic are one keystroke apart, so each keeps its own colour: blue for the rehearsal, red for real callers. */
  .segmented { display: inline-flex; padding: .2rem; border: 1px solid var(--line); border-radius: var(--r-control); background: var(--surface-2); }
  .segment { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem 1.1rem; border-radius: var(--r-control); color: var(--ink-2); font-size: 1.3rem; font-weight: 550; text-decoration: none; }
  .segment-dot { width: .8rem; height: .8rem; border-radius: 999px; background: currentColor; opacity: .5; }
  .segment.is-staging { --segment-tone: var(--router); }
  .segment.is-live { --segment-tone: var(--danger); }
  .segment.is-active { background: var(--surface); color: var(--segment-tone, var(--ink)); box-shadow: 0 1px 2px rgb(var(--shade) / .12); }
  .segment.is-active .segment-dot { opacity: 1; background: var(--segment-tone); }
  .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: .8rem; margin: 0 0 1.6rem; }
  .stat { padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: var(--r-card); background: var(--surface); }
  .stat dt { font-size: 1.2rem; color: var(--ink-3); }
  .stat dd { margin: .2rem 0 0; font-size: 2.2rem; font-weight: 650; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
  .stat.is-bad { border-color: var(--error-line); background: var(--error-surface); }
  .stat.is-bad dd { color: var(--error); }
  /* A plain-language line above the numbers, for readers who don't parse tables. */
  .stat dd.stat-fix { margin: .6rem 0 0; font-size: 1.3rem; font-weight: 500; letter-spacing: 0; }
  .stat dd.stat-fix a { color: inherit; }
  .endpoint-screen { display: inline-block; margin-right: .8rem; }
  .traffic-section { margin-top: 1.6rem; }
  .traffic-heading { margin: 0 0 .8rem; font-size: 1.45rem; font-weight: 650; }
  /* The drop-off funnel: one rung per screen, the bar the share who reached it, the number the share lost there. */
  .pane-bar .segmented + .segmented { margin-left: auto; }
  .funnel { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
  .funnel-step { display: grid; grid-template-columns: minmax(12rem, 16rem) minmax(0, 1fr) 15rem; align-items: center; gap: 1rem; }
  .funnel-label { min-width: 0; display: grid; gap: .1rem; }
  .funnel-name { font-size: 1.35rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .funnel-id { font-family: var(--mono); font-size: 1.1rem; color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .funnel-bar { height: 2.2rem; border-radius: var(--r-control); background: var(--surface-2); overflow: hidden; }
  .funnel-bar span { display: flex; align-items: center; height: 100%; min-width: fit-content; padding: 0 .8rem; border-radius: var(--r-control); background: var(--viz-1); color: var(--on-accent); font-size: 1.2rem; font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
  .funnel-drop { font-size: 1.25rem; color: var(--ink-3); font-variant-numeric: tabular-nums; text-align: right; }
  .funnel-drop.is-high { color: var(--error); font-weight: 650; }
  .funnel-step.is-worst .funnel-bar span { background: var(--warning); }
  .funnel-step.is-worst .funnel-name { color: var(--error); }
  .sessions { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: var(--r-card); background: var(--surface); }
  .sessions > li + li { border-top: 1px solid var(--line); }
  .traffic-session > summary { list-style: none; cursor: pointer; }
  .traffic-session > summary::-webkit-details-marker { display: none; }
  .traffic-session-row { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.2rem; padding: .8rem 1.2rem; }
  .traffic-session[open] > .traffic-session-row { background: var(--surface-2); }
  .session-phone { min-width: 12rem; font-family: var(--mono); font-size: 1.25rem; }
  .session-steps { display: flex; flex-wrap: wrap; gap: .3rem; min-width: 8rem; }
  .session-timeline { list-style: none; margin: 0; padding: .6rem 1.2rem 1rem 2.4rem; display: grid; gap: .5rem; font-size: 1.3rem; }
  .session-timeline li { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem .9rem; }
  .timeline-call { font-family: var(--mono); font-size: 1.15rem; color: var(--ink-2); }
  .timeline-call.is-failed { color: var(--error); }
  .timeline-call.is-warning { color: var(--warning); }
  @container panel (max-width: 34rem) { .funnel-step { grid-template-columns: minmax(0, 1fr) auto; } .funnel-bar { grid-column: 1 / -1; order: 3; } }

  /* Narrowing the session list: outcome chips with their counts, a caller search, and which end to read from. */
  .traffic-page { padding: 2.4rem 0 4.8rem; }
  .traffic-page .analytics-bar { margin-bottom: 1.6rem; }
  .traffic-page .flash.is-inline { margin-bottom: 1.2rem; }
  /* The chart is context here, not the subject: half the height it gets on the summary page. */
  .traffic-page .viz-plot { height: 9rem; }
  .traffic-page .viz + details, .traffic-page .traffic-section:has(.viz) { margin-top: 0; }
  .traffic-page .stats { margin-bottom: 1.2rem; }
  .traffic-crumbs { display: flex; align-items: center; gap: .6rem; margin: 0 0 .4rem; font-size: 1.3rem; }
  .traffic-crumbs span { color: var(--ink-3); }
  .traffic-back { color: var(--ink-2); text-decoration: none; }
  .traffic-back:hover { color: var(--ink); text-decoration: underline; }
  .traffic-page .traffic-sections { margin: 1.6rem 0 1rem; }
  .traffic-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; margin-bottom: 1.2rem; }
  .traffic-chips { display: flex; flex-wrap: wrap; gap: .6rem; }
  .traffic-chip { display: inline-flex; align-items: center; gap: .6rem; padding: .4rem 1rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-2); font-size: 1.25rem; text-decoration: none; }
  .traffic-chip:hover { border-color: var(--line-strong, var(--ink-3)); color: var(--ink); }
  .traffic-chip.is-active { border-color: var(--ink); background: var(--inverse); color: var(--on-inverse); font-weight: 600; }
  .traffic-chip-count { font-family: var(--mono); font-size: 1.15rem; }
  .traffic-find { display: flex; align-items: center; gap: .8rem; }
  .traffic-find .label { margin: 0; }
  .traffic-narrowed { display: flex; align-items: center; gap: 1rem; margin: 0 0 1.6rem; color: var(--ink-2); font-size: 1.3rem; }
  .traffic-count { margin: 0 0 1rem; }
  .session-screen { font-family: var(--mono); font-size: 1.15rem; color: var(--ink-2); }
  .session-screen:hover { color: var(--ink); }
  /* A debugging table: when first, in the reader's own zone, and a page at a time. */
  .session-time { font-family: var(--mono); font-size: 1.2rem; font-variant-numeric: tabular-nums; white-space: nowrap; color: var(--ink-2); }
  .traffic-count { display: flex; align-items: center; justify-content: flex-end; gap: 1.6rem; margin: 0 0 .8rem; }
  .traffic-zone { display: inline-flex; align-items: center; gap: .8rem; white-space: nowrap; }
  .traffic-zone .label, .traffic-zone .hint { margin: 0; white-space: nowrap; }
  .traffic-zone .field--small { max-width: 24rem; }
  /* Carbon shapes: an expandable data table, its pagination stacked under it, an inline notification above. */
  .sessions-table th.is-expander, .sessions-table td.is-expander { width: 3.2rem; padding-right: 0; }
  .expander { display: grid; place-items: center; width: 2.8rem; height: 2.8rem; padding: 0; border: 0; border-radius: var(--r-control); background: transparent; color: var(--ink-2); cursor: pointer; }
  .expander:hover { background: var(--surface-hover); color: var(--ink); }
  .mirror { display: inline-grid; transform: scaleX(-1); }
  .expander .mirror { transition: transform .12s ease; }
  .expander .icon { width: 1.6rem; height: 1.6rem; }
  .session.is-expanded .expander .mirror { transform: scaleX(-1) rotate(-90deg); }
  .session-expansion > td { padding: 0 1.2rem 1.2rem 4.4rem; background: var(--surface-2); }
  .session-expansion .session-timeline { margin: 0; }
  .sessions-table .session-steps { white-space: nowrap; }
  .pagination { display: flex; align-items: center; justify-content: space-between; gap: 1.6rem; padding: .6rem 1.2rem; border: 1px solid var(--line); border-top: 0; background: var(--surface); }
  .pagination-per { display: flex; align-items: center; gap: .8rem; }
  .pagination-per .hint { margin: 0; }
  .pagination-range { padding-left: .8rem; border-left: 1px solid var(--line); }
  .pagination-pages { display: flex; align-items: center; gap: .4rem; }
  .pagination-pages .hint { margin-right: .8rem; }
  .pagination .tool.is-disabled { opacity: .35; pointer-events: none; }
  .traffic-alert { display: flex; align-items: flex-start; gap: 1.2rem; }
  .traffic-alert > .icon { flex: none; width: 2rem; height: 2rem; margin-top: .1rem; }
  .traffic-alert .flash-body { display: flex; flex-direction: column; gap: .2rem; flex-grow: 1; }
  .traffic-alert .flash-title { font-weight: 600; }
  .traffic-alert .btn { flex: none; align-self: center; }
  /* A phone keeps what a row is for - when, who, how it ended - and leaves keys and calls to the row opened. */
  @media (max-width: 600px) {
    .sessions-table .is-keys, .sessions-table .session-steps, .sessions-table .is-calls, .sessions-table .session-calls { display: none; }
    .sessions-table .session-time { display: grid; }
    .sessions-table .session-date { font-size: 1.15rem; color: var(--ink-3); }
    .sessions-table .pill-where { display: none; }
    .session-timeline li { flex-wrap: wrap; }
    .pagination { flex-wrap: wrap; row-gap: .8rem; }
    .pagination-per > label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
    .pagination-per .field { width: auto; }
    .pagination-pages { margin-left: auto; }
    .traffic-chips { flex-wrap: nowrap; margin-inline: -1.6rem; padding-inline: 1.6rem; overflow-x: auto; scrollbar-width: none; }
    .traffic-chips::-webkit-scrollbar { display: none; }
    .traffic-chip { flex: none; }
    .traffic-find { width: 100%; }
    .traffic-find .field { flex: 1; min-width: 0; }
    .traffic-filters .segmented { display: flex; width: 100%; }
    .traffic-filters .segment { flex: 1; justify-content: center; }
  }
}