/* docs/DESIGN_SYSTEM.md Section 10.4. This was the first file under
   styles/components/ -- every other shared component (Card, StatTile,
   Badge, EmptyState, LoadingSkeleton, ErrorBanner, ChartPanel) then
   had none, a known, already-tracked gap (PROJECT_LOG.md, Shared
   Components / Overview milestones) that this file didn't close --
   all of them got their own CSS in Milestones 18/20. DataTable was the
   one exception worth making immediately, ahead of the rest:
   its defining architectural requirement -- collapsing to a stacked
   card per row below 768px (docs/ARCHITECTURE.md Section 12) -- is
   not a styling nicety layered on top of a working component, it is
   the actual behaviour a "data table" is specified to have; without
   this file the component could not do the one thing that makes it
   distinct from a bare <table>.

   Mobile-first, matching layout.css's and tokens.css's own convention:
   base rules are the <768px (stacked-card) case, the single @media
   rule below is the Tablet-and-up (real table) override. */

.data-table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

/* Hidden below 768px the same way base.css's .visually-hidden hides
   content -- clipped, not display:none, so column names stay in the
   accessibility tree even though the visible label now comes from
   each cell's own data-label (below). Duplicated here rather than
   applying the .visually-hidden class from JS, since this hiding is
   breakpoint-conditional, not permanent. */
.data-table thead {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.data-table tbody tr {
  display: block;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  /* Uniform --space-4, matching docs/DESIGN_SYSTEM.md Section 10.3's
     base Card padding -- each mobile row is styled as a card. */
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}

.data-table tbody tr:last-child {
  margin-bottom: 0;
}

.data-table__cell {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-1) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.data-table__cell:last-child {
  border-bottom: none;
}

.data-table__cell::before {
  content: attr(data-label);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-label);
}

.data-table__cell--right {
  font-family: var(--font-family-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--letter-spacing-data);
  /* Phase G.3 mobile-overflow mitigation: a monospaced numeral face is
     typically wider per character than the proportional base sans it
     replaces -- keep the value from an awkward mid-number wrap at
     narrow widths. If real values still overflow the stacked-card
     layout at 320-375px, this is the rule to revisit first (Stage 8
     visual QA), not a claim this fully solves it. */
  white-space: nowrap;
}

@media (min-width: 768px) {
  .data-table thead {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    clip-path: none;
    white-space: normal;
    border: 0;
  }

  .data-table__h {
    background: var(--color-surface-raised);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-label);
    text-align: left;
    padding: var(--space-2) var(--space-3);
    border-bottom: var(--border-width) solid var(--color-border);
  }

  .data-table__h--right {
    text-align: right;
  }

  .data-table tbody tr {
    display: table-row;
    background: var(--color-surface);
    border: none;
    border-radius: 0;
    padding: 0;
    margin-bottom: 0;
    transition: background var(--duration-fast) var(--ease-standard);
  }

  .data-table tbody tr:hover {
    background: var(--color-surface-raised);
  }

  .data-table__cell {
    display: table-cell;
    padding: var(--space-2) var(--space-3);
    border-bottom: var(--border-width) solid var(--color-border);
    gap: 0;
  }

  .data-table tbody tr:last-child .data-table__cell {
    border-bottom: none;
  }

  .data-table__cell::before {
    content: none;
  }

  .data-table__cell--right {
    text-align: right;
  }
}