/* ==========================================================================
   Grid and modules — the docking unit and the page-layout building blocks that
   live inside one: stats, lists, charts, the settings frame and the wizard.
   ========================================================================== */

@layer modules {
  /* settings layout: section list + stacked section modules */
  .zr-settings {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: var(--zr-5);
    align-items: start;
  }
  /* The nav inside is sticky, and a sticky element can only travel inside its own
     containing block. With `align-items: start` the column was as tall as the nav
     itself, so it scrolled away after 190px instead of following the page. */
  .zr-settings > aside {
    align-self: stretch;
  }

  .zr-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--zr-3);
    align-items: start;
  }
  .zr-grid > [data-span='3'] {
    grid-column: span 3;
  }
  .zr-grid > [data-span='4'] {
    grid-column: span 4;
  }
  .zr-grid > [data-span='5'] {
    grid-column: span 5;
  }
  .zr-grid > [data-span='6'] {
    grid-column: span 6;
  }
  .zr-grid > [data-span='7'] {
    grid-column: span 7;
  }
  .zr-grid > [data-span='8'] {
    grid-column: span 8;
  }
  /* 9 to 11 exist for the dashboard's resizable cards; the views themselves
     only ship the widths above. */
  .zr-grid > [data-span='9'] {
    grid-column: span 9;
  }
  .zr-grid > [data-span='10'] {
    grid-column: span 10;
  }
  .zr-grid > [data-span='11'] {
    grid-column: span 11;
  }
  .zr-grid > [data-span='12'] {
    grid-column: span 12;
  }

  /* a module is the docking unit: same head, same states, any content */
  .zr-module {
    container-type: inline-size;
    background: var(--zr-surface);
    border: 1px solid var(--zr-line);
    border-radius: var(--zr-r-lg);
    box-shadow: var(--zr-shadow-sm);
    overflow: hidden;
    min-width: 0;
  }
  .zr-module--flat {
    background: transparent;
    border: 0;
    box-shadow: none;
  }
  .zr-module__head {
    display: flex;
    align-items: center;
    gap: var(--zr-2);
    padding: var(--zr-2) var(--zr-3);
    border-bottom: 1px solid var(--zr-line);
    min-height: 38px;
  }
  .zr-module__title {
    font-size: var(--zr-fs-md);
    font-weight: 600;
    letter-spacing: -0.005em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .zr-module__meta {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-faint);
    margin-left: auto;
    white-space: nowrap;
  }
  .zr-module__actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--zr-1);
  }
  .zr-module__body {
    padding: var(--zr-3);
  }
  .zr-module__body--tight {
    padding: 0;
  }
  /* A chart next to its legend: the two keep more air between them than a plain
     row, and the legend starts at the top rather than centring on the chart.
     The markup pairs this with .zr-row, and a single class is enough to beat
     it: .zr-row lives in the base layer, this one in modules, and a later
     layer wins whatever the selectors weigh. */
  .zr-module__body--chart {
    gap: var(--zr-4);
    align-items: flex-start;
  }
  .zr-module__foot {
    padding: var(--zr-2) var(--zr-3);
    border-top: 1px solid var(--zr-line);
    background: var(--zr-surface-2);
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
  }

  /* A bare title directly inside a module reads as its header, so it gets the
     same treatment as .zr-module__head without needing the wrapper. */
  .zr-module > .zr-module__title {
    display: block;
    padding: var(--zr-2) var(--zr-3);
    border-bottom: 1px solid var(--zr-line);
    margin-bottom: var(--zr-3);
  }
  .zr-module > .zr-module__title:only-child {
    border-bottom: 0;
    margin-bottom: 0;
  }

  /* Fallback padding: a module whose content is not wrapped in __body still needs
     breathing room. Structural children bring their own padding and opt out. */
  .zr-module
    > *:not(.zr-module__head):not(.zr-module__body):not(.zr-module__foot):not(
      .zr-list
    ):not(.zr-table-wrap):not(.zr-table-cards):not(.zr-table-toolbar):not(
      .zr-table-foot
    ):not(table):not(script):not(style) {
    padding-left: var(--zr-3);
    padding-right: var(--zr-3);
  }
  .zr-module
    > *:not(.zr-module__head):not(.zr-module__body):not(.zr-module__foot):not(
      .zr-list
    ):not(.zr-table-wrap):not(.zr-table-cards):not(.zr-table-toolbar):not(
      .zr-table-foot
    ):not(table):not(script):not(style):first-child {
    padding-top: var(--zr-3);
  }
  .zr-module
    > *:not(.zr-module__head):not(.zr-module__body):not(.zr-module__foot):not(
      .zr-list
    ):not(.zr-table-wrap):not(.zr-table-cards):not(.zr-table-toolbar):not(
      .zr-table-foot
    ):not(table):not(script):not(style):last-child {
    padding-bottom: var(--zr-3);
  }
  /* Stacked modules need air between them; the grid handles its own gaps. */
  .zr-module + .zr-module,
  .zr-module + .zr-alert,
  .zr-alert + .zr-module {
    margin-top: var(--zr-3);
  }
  /* …which is why the grid has to opt out again: the margin lands on every card
     but the first, so the cards sharing a row no longer start at the same height
     and every row gap ends up doubled. */
  .zr-grid > .zr-module,
  .zr-grid > .zr-alert {
    margin-top: 0;
  }

  .zr-empty {
    text-align: center;
    padding: var(--zr-6) var(--zr-4);
    color: var(--zr-text-muted);
  }
  .zr-empty > .zr-icon {
    margin-right: var(--zr-1);
  }
  /* `.zr-table td` is more specific than `.zr-empty`, so an empty state used as
     a table cell would otherwise fall back to the tight generic cell padding. */
  .zr-table td.zr-empty {
    padding: var(--zr-6) var(--zr-4);
  }
  .zr-empty__icon {
    color: var(--zr-text-faint);
    margin: 0 auto var(--zr-2);
  }
  .zr-empty__title {
    font-weight: 600;
    color: var(--zr-text);
    margin-bottom: 2px;
  }

  /* stat — the KPI unit */
  .zr-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--zr-3);
  }
  .zr-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--zr-3);
    background: var(--zr-surface);
    border: 1px solid var(--zr-line);
    border-radius: var(--zr-r-lg);
    box-shadow: var(--zr-shadow-sm);
    min-width: 0;
    transition: border-color var(--zr-dur) var(--zr-ease);
  }
  a.zr-stat:hover {
    border-color: var(--zr-brand);
  }
  .zr-stat__label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    font-weight: 500;
  }
  .zr-stat__value {
    font-size: var(--zr-fs-2xl);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
  }
  /* Muted rather than faint: these three carry information (a date, a
     correspondent, a coverage figure). Faint is for decorative labels. */
  .zr-stat__delta {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
  }
  .zr-stat__delta--up {
    color: var(--zr-ok);
  }
  .zr-stat__delta--down {
    color: var(--zr-danger);
  }

  /* bar list — replaces most small charts */
  .zr-barlist {
    display: flex;
    flex-direction: column;
    gap: var(--zr-2);
  }
  .zr-barrow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px var(--zr-2);
    align-items: center;
  }
  .zr-barrow__label {
    font-size: var(--zr-fs-base);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .zr-barrow__value {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    font-variant-numeric: tabular-nums;
  }
  .zr-barrow__track {
    grid-column: 1 / -1;
  }

  /* list */
  .zr-list {
    display: flex;
    flex-direction: column;
  }
  .zr-list__item {
    display: flex;
    align-items: center;
    gap: var(--zr-3);
    padding: var(--zr-2) var(--zr-3);
    border-bottom: 1px solid var(--zr-line);
    min-width: 0;
  }
  .zr-list__item:last-child {
    border-bottom: 0;
  }
  a.zr-list__item:hover {
    background: var(--zr-surface-2);
  }
  .zr-list__main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1;
  }
  .zr-list__title {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .zr-list__sub {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .zr-list__time {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
  }

  /* section nav (settings) */
  .zr-sectionnav {
    display: flex;
    flex-direction: column;
    gap: 1px;
    position: sticky;
    top: calc(var(--zr-topbar-h) + var(--zr-4));
    /* A longer list on a short window scrolls inside the nav rather than reaching
       past the bottom of the screen where it could not be clicked. */
    max-height: calc(100dvh - var(--zr-topbar-h) - var(--zr-6));
    overflow-y: auto;
    scrollbar-width: thin;
  }
  .zr-sectionnav a {
    display: flex;
    align-items: center;
    gap: var(--zr-2);
    padding: 6px var(--zr-2);
    border-radius: var(--zr-r-md);
    color: var(--zr-text-muted);
    font-weight: 500;
  }
  .zr-sectionnav a:hover {
    background: var(--zr-surface-2);
    color: var(--zr-text);
  }
  .zr-sectionnav a[aria-current='true'] {
    background: var(--zr-brand-soft);
    color: var(--zr-brand-text);
    font-weight: 600;
  }

  /* stepper (setup) */
  .zr-stepper {
    display: flex;
    flex-direction: column;
    gap: 1px;
  }
  .zr-step {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: var(--zr-2);
    padding: var(--zr-2);
    border-radius: var(--zr-r-md);
    color: var(--zr-text-muted);
    text-align: left;
    width: 100%;
    align-items: center;
  }
  .zr-step:hover {
    background: var(--zr-surface-2);
  }
  .zr-step__marker {
    /* anchors the connector line drawn for finished steps */
    position: relative;
    display: grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid var(--zr-line-strong);
    font-size: var(--zr-fs-xs);
    font-weight: 700;
    color: var(--zr-text-faint);
    background: var(--zr-surface);
    flex: none;
  }
  .zr-step__name {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .zr-step__hint {
    font-size: var(--zr-fs-xs);
    color: var(--zr-text-faint);
  }
  /* A finished step used to differ from a pending one by the fill of a 22px
     circle and nothing else. Give the whole row the state: full-strength text,
     a check mark, and a connector line running down to the next step. */
  .zr-step[data-status='done'] .zr-step__marker {
    background: var(--zr-ok);
    border-color: var(--zr-ok);
    color: #fff;
  }
  .zr-step[data-status='done'] {
    color: var(--zr-text);
  }
  .zr-step[data-status='done'] .zr-step__name {
    font-weight: 600;
  }
  .zr-step[data-status='done'] .zr-step__hint {
    color: var(--zr-ok);
  }
  /* Connector between consecutive markers, drawn only below a finished step so
     the rail reads as a filled-in trail. */
  .zr-step[data-status='done'] .zr-step__marker::after {
    content: '';
    position: absolute;
    top: 22px;
    left: 50%;
    width: 1.5px;
    height: calc(100% + 1px);
    transform: translateX(-50%);
    background: var(--zr-ok);
  }
  .zr-step:last-child .zr-step__marker::after {
    display: none;
  }
  .zr-step[data-status='active'] {
    background: var(--zr-brand-soft);
    color: var(--zr-brand-text);
  }
  .zr-step[data-status='active'] .zr-step__marker {
    background: var(--zr-brand);
    border-color: var(--zr-brand);
    color: var(--zr-on-brand);
  }
  .zr-step[data-status='active'] .zr-step__name {
    font-weight: 600;
  }
  /* Steps not yet reached are genuinely inert, so stop advertising a click. */
  .zr-step[data-status='todo'] {
    cursor: default;
  }
  .zr-step[data-status='todo']:hover {
    background: transparent;
  }

  /* sticky action bar */
  .zr-actionbar {
    position: sticky;
    bottom: 0;
    z-index: 15;
    display: flex;
    align-items: center;
    gap: var(--zr-3);
    margin-top: var(--zr-4);
    padding: var(--zr-2) var(--zr-3);
    background: color-mix(in srgb, var(--zr-surface) 92%, transparent);
    backdrop-filter: blur(8px);
    border: 1px solid var(--zr-line);
    border-radius: var(--zr-r-lg);
    box-shadow: var(--zr-shadow-md);
  }
  .zr-actionbar__status {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    margin-right: auto;
  }
  .zr-actionbar[data-dirty='true'] {
    border-color: var(--zr-brand);
  }
  .zr-actionbar[data-dirty='true'] .zr-actionbar__status {
    color: var(--zr-brand-text);
    font-weight: 600;
  }

  /* view header — page-level title row with actions, inside the content area */
  .zr-viewhead {
    display: flex;
    align-items: center;
    gap: var(--zr-2);
    flex-wrap: wrap;
    margin-bottom: var(--zr-4);
  }
  .zr-viewhead__title {
    font-family: var(--zr-font-brand);
    font-size: var(--zr-fs-xl);
    font-weight: 700;
    letter-spacing: -0.01em;
  }
  .zr-viewhead__sub {
    font-size: var(--zr-fs-sm);
    color: var(--zr-text-muted);
    flex-basis: 100%;
    margin-top: -4px;
  }
  .zr-viewhead__actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--zr-2);
    flex-wrap: wrap;
  }

  /* sparkline */
  .zr-spark {
    width: 100%;
    height: 40px;
    overflow: visible;
  }
  .zr-spark path {
    fill: none;
    stroke: var(--zr-brand);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
  }
  .zr-spark .zr-spark__area {
    fill: color-mix(in srgb, var(--zr-brand) 14%, transparent);
    stroke: none;
  }
  .zr-spark .zr-spark__baseline {
    stroke: var(--zr-line-strong);
    stroke-dasharray: 3 3;
  }

  /* donut */
  .zr-donut {
    --zr-donut-size: 116px;
    width: var(--zr-donut-size);
    height: var(--zr-donut-size);
    flex: none;
  }
  .zr-donut circle {
    fill: none;
    stroke-width: 12;
  }
  /* The two labels in the hole. SVG text takes neither the page font nor the
     page colour, so both have to be named here. */
  .zr-donut__total {
    font: 700 15px var(--zr-font);
    fill: var(--zr-text);
  }
  .zr-donut__caption {
    font: 400 8px var(--zr-font);
    fill: var(--zr-text-faint);
  }

  /* entity button — a full-width row that behaves like a link */
  .zr-entitybtn {
    text-align: left;
    padding: var(--zr-2);
    margin: 0 calc(-1 * var(--zr-2));
    width: calc(100% + var(--zr-4));
    border-radius: var(--zr-r-md);
    color: inherit;
  }
  .zr-entitybtn:hover {
    background: var(--zr-surface-2);
  }

  /* key-value */
  .zr-kv {
    display: flex;
    justify-content: space-between;
    gap: var(--zr-3);
    padding: 5px 0;
    border-bottom: 1px dashed var(--zr-line);
  }
  .zr-kv:last-child {
    border-bottom: 0;
  }
  .zr-kv__k {
    color: var(--zr-text-muted);
  }
  .zr-kv__v {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
  }

  /* recessed panel — for read-only blocks inside a module */
  .zr-panel {
    padding: var(--zr-3);
    border-radius: var(--zr-r-md);
    background: var(--zr-surface-2);
    border: 1px solid var(--zr-line);
  }

  @container (max-width: 420px) {
    .zr-donut {
      --zr-donut-size: 92px;
    }
  }

  @media (max-width: 1180px) {
    .zr-grid > [data-span='3'],
    .zr-grid > [data-span='4'] {
      grid-column: span 6;
    }
    .zr-grid > [data-span='5'],
    .zr-grid > [data-span='7'],
    .zr-grid > [data-span='8'],
    .zr-grid > [data-span='9'],
    .zr-grid > [data-span='10'],
    .zr-grid > [data-span='11'] {
      grid-column: span 12;
    }
  }

  @media (max-width: 860px) {
    .zr-grid > * {
      grid-column: span 12 !important;
    }
    .zr-stats {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--zr-2);
    }
    /* an odd last tile takes the full row instead of leaving a hole */
    .zr-stats > :last-child:nth-child(odd) {
      grid-column: span 2;
    }

    /* Docked onto the tab bar instead of floating above it: the floating island
       left a strip of scrolling content visible between its bottom edge and the
       tabs, which read as a rendering glitch. */
    .zr-actionbar {
      position: fixed;
      left: 0;
      right: 0;
      bottom: var(--zr-tabbar-h);
      z-index: 25;
      margin: 0;
      gap: var(--zr-2);
      padding: var(--zr-2) var(--zr-3);
      border-radius: 0;
      border-left: 0;
      border-right: 0;
      border-bottom: 0;
      box-shadow: none;
    }
    /* The docked bar covers content the sticky island used to push away. */
    .zr-view:has(.zr-actionbar) {
      padding-bottom: calc(var(--zr-tabbar-h) + 72px);
    }
    .zr-actionbar__status {
      font-size: var(--zr-fs-xs);
      white-space: nowrap;
    }

    .zr-settings {
      grid-template-columns: minmax(0, 1fr);
      gap: var(--zr-3);
    }

    .zr-sectionnav {
      position: static;
      flex-direction: row;
      /* The desktop cap would squash the single row this becomes. */
      max-height: none;
      overflow-x: auto;
      gap: var(--zr-1);
      padding-bottom: var(--zr-1);
      scrollbar-width: none;
    }

    /* Filters stack rather than leaving a different amount of the row unused on
       every line — but only where the group holds a control. The OCR head uses
       the same box for three status badges, and those belong side by side. */
    .zr-viewhead__actions:has(.zr-select, .zr-input) {
      width: 100%;
      flex-direction: column;
      align-items: stretch;
    }
    .zr-sectionnav a {
      white-space: nowrap;
    }
  }

  @media (max-width: 860px) {
    /* An "updated 14:32" note is desktop chrome and stays out of the way here,
       but "the data stopped refreshing" has to reach the phone as well. */
    .zr-freshness:not(.zr-danger-text) {
      display: none;
    }

    /* The setup rail used to be desktop-only, leaving phones with just a line of
       text. Keep it, but collapse it to a row of markers — the step name is
       already spelled out above in "Step N of 7: …". */
    .zr-stepper {
      flex-direction: row;
      justify-content: space-between;
      gap: var(--zr-1);
    }
    .zr-step {
      grid-template-columns: auto;
      justify-items: center;
      padding: var(--zr-1);
    }
    .zr-step > .zr-col {
      display: none;
    }
    /* horizontal connector instead of the vertical one */
    .zr-step[data-status='done'] .zr-step__marker::after {
      top: 50%;
      left: 22px;
      width: calc(100% + 1px);
      height: 1.5px;
      transform: translateY(-50%);
    }
  }
}