//
// COMPARE — light
// ===============
// Layout for the compare plugin's A/B view: an introductory band, four
// information cards (Settings / Run setup / Content breakdown /
// Comparison data) and a per-metric scatter plot for each measured
// metric.
//
// The scatter plots are rendered as absolutely-positioned DOM elements
// inside a relative wrapper rather than as SVG circles. Inline SVG with
// `preserveAspectRatio='none'` stretched into a wide rectangle distorted
// circles into ellipses; HTML dots stay round at any width and the
// median guides are simple dashed border-tops.
//

// Per-series colours — kept distinct enough to read without relying on
// hue alone (they're paired with text labels everywhere they appear).
$cmp--baseline: #468847;
$cmp--current: #c09853;
$cmp--overlap: #59922b;

.cmp-title {
  margin: 0 0 12px 0;
}

.cmp-intro {
  margin: 0 0 20px 0;
  color: $color--text-secondary;
  max-width: 80ch;
}

.cmp-alert {
  padding: 10px 14px;
  border-radius: $radius--sm;
  margin: 0 0 16px 0;
  font-size: 0.95rem;
  border: 1px solid $color--border;

  &--warning {
    background: $color--warning-bg;
    border-color: $color--warning-border;
    color: $color--warning;
  }
}

//
// Card shell — matches the .inp-card / .lcp-card / .loaf-card pattern
// already used on the Metrics tab so the whole report feels consistent.
//
.cmp-card {
  background: $color--surface-card;
  border: 1px solid $color--border;
  border-radius: $radius--md;
  padding: 18px 20px;
  margin: 0 0 18px 0;
  box-shadow: $shadow--sm;
}

.cmp-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid $color--border;
}

.cmp-card-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: $font--weight--semibold;
}

.cmp-card-help {
  margin: 12px 0 0 0;
  color: $color--text-muted;
  font-size: 0.9rem;
  max-width: 80ch;
}

//
// Settings card — compact dl with the test parameters. Same grid shape
// as the INP/LCP meta blocks.
//
.cmp-meta {
  display: grid;
  grid-template-columns: minmax(160px, auto) 1fr;
  column-gap: 16px;
  row-gap: 8px;
  margin: 0;
  font-size: 0.95rem;

  dt {
    color: $color--text-muted;
    font-weight: $font--weight--medium;
  }

  dd {
    margin: 0;
    color: $color--text;
    word-break: break-word;
  }

  code {
    font-size: 0.85em;
  }
}

//
// Run setup — baseline | current side by side; collapses to stacked on
// narrow screens so both columns stay readable.
//
.cmp-runs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;

  @media (max-width: 720px) {
    grid-template-columns: 1fr;
  }
}

.cmp-run {
  background: $color--surface;
  border: 1px solid $color--border;
  border-radius: $radius--sm;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cmp-run-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.cmp-run-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: $radius--pill;
  font-size: 0.75rem;
  font-weight: $font--weight--semibold;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: $color--white;

  &--baseline { background: $cmp--baseline; }
  &--current { background: $cmp--current; }
}

.cmp-run-timestamp {
  color: $color--text-muted;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.cmp-run-url {
  word-break: break-word;
  font-weight: $font--weight--medium;
}

.cmp-run-thumb {
  display: block;
  line-height: 0;

  img {
    display: block;
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: $radius--sm;
    border: 1px solid $color--border;
    background: $color--surface-card;
  }
}

.cmp-run-video video {
  width: 100%;
  max-width: 280px;
  border-radius: $radius--sm;
  border: 1px solid $color--border;
  background: $color--black;
}

.cmp-run-result {
  align-self: flex-start;
  font-size: 0.9rem;
  font-weight: $font--weight--medium;
}

//
// Content breakdown — straightforward 3-column table, right-aligned
// numbers so the eye can compare baseline vs current at a glance.
//
.cmp-types {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;

  th, td {
    padding: 8px 12px;
    border-bottom: 1px solid $color--border;
    text-align: left;
  }

  thead th {
    color: $color--text-muted;
    font-weight: $font--weight--semibold;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid $color--border-strong;
  }

  tbody tr:last-child td {
    border-bottom: none;
  }
}

.cmp-types-num {
  text-align: right !important;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

//
// Comparison data — the wide stats table. Wraps in a horizontally-
// scrollable container so narrow viewports don't blow up the page
// layout, and pairs each baseline/current column with a thin divider so
// the eye can group them.
//
.cmp-data-scroll {
  overflow-x: auto;
  margin: 0 -4px;
}

.cmp-data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;

  th, td {
    padding: 6px 10px;
    border-bottom: 1px solid $color--border;
    text-align: left;
    white-space: nowrap;
  }

  thead th {
    color: $color--text-muted;
    font-weight: $font--weight--semibold;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: $color--surface;
  }

  thead tr:last-child th {
    border-bottom: 1px solid $color--border-strong;
  }

  tbody tr:hover {
    background: $color--surface;
  }

  td {
    font-variant-numeric: tabular-nums;
  }
}

.cmp-data-pair {
  text-align: center !important;
  border-left: 1px solid $color--border;
}

// Right-align numeric columns and put a subtle divider before each
// "Baseline" cell so paired columns read as one logical group.
.cmp-data-base, .cmp-data-curr {
  text-align: right !important;
}

.cmp-data-base {
  border-left: 1px solid $color--border;
}

.cmp-data-metric a {
  font-weight: $font--weight--medium;
}

.cmp-data-score {
  text-align: right !important;
  color: $color--text-secondary;
}

//
// Status chips — small, high-contrast pills that work both inline in
// table cells and next to the chart titles.
//
.cmp-chip {
  display: inline-block;
  padding: 2px 10px;
  border-radius: $radius--pill;
  font-size: 0.78rem;
  font-weight: $font--weight--semibold;
  white-space: normal;

  &--ok {
    color: $color--ok;
    background: $color--ok-bg;
    border: 1px solid $color--ok-border;
  }

  &--error {
    color: $color--error;
    background: $color--error-bg;
    border: 1px solid $color--error-border;
  }

  &--neutral {
    color: $color--text-muted;
    background: $color--surface;
    border: 1px solid $color--border;
  }
}

//
// Per-metric chart card — the scatter plot, anchored by id so the
// "Metric" links in the comparison-data table jump straight to it.
//
.cmp-graphs {
  margin-top: 24px;

  > .cmp-card-title {
    margin: 0 0 12px 0;
  }
}

.cmp-chart-card {
  background: $color--surface-card;
  border: 1px solid $color--border;
  border-radius: $radius--md;
  padding: 14px 16px 16px 16px;
  margin: 0 0 18px 0;
  box-shadow: $shadow--sm;
  scroll-margin-top: 16px;
}

.cmp-chart-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.cmp-chart-title {
  margin: 0;
  font-size: 1rem;
  font-weight: $font--weight--semibold;
  word-break: break-word;
}

// Chart body lays the y-axis gutter (tick labels) next to the plot
// rectangle in a flex row. Both children stretch to the plot's height,
// so the tick labels stay vertically aligned with their grid lines.
.cmp-chart-body {
  display: flex;
  align-items: stretch;
  margin-bottom: 10px;
}

.cmp-y-axis {
  position: relative;
  flex: 0 0 auto;
  width: 56px;
  font-size: 0.7rem;
  color: $color--text-muted;
  font-variant-numeric: tabular-nums;
}

.cmp-y-tick {
  position: absolute;
  right: 6px;
  transform: translateY(-50%);
  white-space: nowrap;

  // First and last tick sit flush against the plot edges; nudge their
  // labels in slightly so they don't appear clipped at the chart card
  // edge.
  &:first-child { transform: translateY(0); }
  &:last-child { transform: translateY(-100%); }
}

// The plot itself — fixed pixel height so dots stay round, but its
// width is fluid. Each .cmp-point sits at a (left%, top%) coordinate.
.cmp-plot {
  position: relative;
  flex: 1 1 auto;
  height: 220px;
  background: $color--surface;
  border: 1px solid $color--border;
  border-radius: $radius--sm;
}

// Faint horizontal grid line at each y-tick — sits behind the data so
// dots and median guides stay visually dominant.
.cmp-grid {
  position: absolute;
  left: 0;
  right: 0;
  height: 0;
  border-top: 1px solid $color--border;
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

.cmp-median {
  position: absolute;
  left: 0;
  right: 0;
  height: 0;
  border-top: 1px dashed transparent;
  opacity: 0.6;
  pointer-events: none;

  &--baseline { border-top-color: $cmp--baseline; }
  &--current { border-top-color: $cmp--current; }
}

// Solid filled dots, no ring — matches the old chartist look. When a
// baseline run and the current run produced the same value the pug
// emits a single .cmp-point--overlap dot (instead of two stacked dots),
// rendered slightly larger so it reads as a "double hit".
.cmp-point {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translate(-50%, -50%);

  &--baseline { background: $cmp--baseline; }
  &--current { background: $cmp--current; }
  &--overlap {
    background: $cmp--overlap;
    width: 20px;
    height: 20px;
  }
}

// Run-count read-out — bottom-right corner of the plot. Y-axis values
// are rendered as a separate gutter (.cmp-y-axis) instead of corner
// badges, so the reader can read off any dot's value.
.cmp-axis-x {
  position: absolute;
  bottom: 4px;
  right: 4px;
  font-size: 0.7rem;
  color: $color--text-muted;
  font-variant-numeric: tabular-nums;
  background: $color--surface-card;
  border: 1px solid $color--border;
  border-radius: $radius--sm;
  padding: 1px 6px;
  pointer-events: none;
}

.cmp-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-size: 0.85rem;
  color: $color--text-secondary;
  word-break: break-word;

  li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
  }
}

.cmp-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;

  &--baseline { background: $cmp--baseline; }
  &--current { background: $cmp--current; }
}

.cmp-legend-label {
  color: $color--text-muted;
  font-weight: $font--weight--medium;
}

.cmp-legend-value {
  font-family: $font--mono;
  font-size: 0.8rem;
  color: $color--text;
}