:root {
  --trend-accent: #e8512a;
  --trend-accent-soft: rgba(232, 81, 42, 0.13);
  --trend-grid: rgba(0, 0, 0, 0.14);
  --trend-shadow: rgba(0, 0, 0, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --trend-accent: #ff8561;
    --trend-accent-soft: rgba(255, 133, 97, 0.16);
    --trend-grid: rgba(211, 211, 211, 0.18);
    --trend-shadow: rgba(211, 211, 211, 0.26);
  }
}

.trends-page {
  max-width: calc(min(112ch, 100%));
  padding-top: calc(var(--line-height) * 1.5);
}

.trends-page::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.24;
  background-image: linear-gradient(to right, var(--trend-grid) 1px, transparent 1px);
  background-size: 1ch 100%;
}

.trends-header {
  margin-bottom: calc(var(--line-height) * 2);
}

.trends-header h1 {
  margin: 0;
  letter-spacing: -0.05em;
}

.page-intro {
  margin: 0 0 calc(var(--line-height) * 2);
  color: var(--text-color-alt);
}

.signals-section {
  scroll-margin-top: calc(var(--line-height) * 2);
}

.section-heading,
.filter-bar,
.trend-card__top,
.dialog-close-row {
  display: flex;
  align-items: baseline;
  gap: 2ch;
}

.section-heading {
  align-items: end;
  justify-content: space-between;
  margin-bottom: var(--line-height);
}

.section-heading h2 {
  margin: 0;
  font-size: 1rem;
}

.eyebrow {
  margin: 0 0 calc(var(--line-height) / 2);
  color: var(--trend-accent);
  font-size: 0.7rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  line-height: var(--line-height);
  text-transform: uppercase;
}

.filter-bar {
  flex-wrap: wrap;
  margin-bottom: calc(var(--line-height) * 1.5);
}

.filter-bar > * {
  margin-top: 0;
}

.filter-button {
  width: auto;
  min-width: 0;
  height: calc(var(--line-height) * 1.75);
  padding: calc(var(--line-height) / 2 - var(--border-thickness)) 1ch;
  font-size: 0.75rem;
}

.filter-button.is-active {
  border-color: var(--trend-accent);
  background: var(--trend-accent);
  color: #fff;
}

.filter-button--method {
  margin-left: auto;
}

.trend-list {
  display: grid;
  grid-auto-rows: 1fr;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: calc(var(--line-height) * 1.5) 1ch;
  margin-top: 0;
}

.trend-card {
  --series-color: var(--text-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  margin-top: 0;
  min-width: 0;
  padding: 1.5ch;
  border: var(--border-thickness) solid var(--text-color);
  box-shadow: none;
  background: var(--background-color);
}

.trend-card.is-hidden {
  display: none;
}

.trend-card__top {
  align-items: start;
  justify-content: space-between;
}

.trend-card__actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.75ch;
  margin-top: 0;
}

.trend-card h3 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.04em;
}

.trend-card__info {
  display: grid;
  place-items: center;
  width: 2.4ch;
  min-width: 0;
  height: 2.4ch;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-color-alt);
  font-size: 0.8rem;
  line-height: 1;
}

.trend-card__info svg {
  display: block;
  width: 1.25em;
  height: 1.25em;
}

.trend-card__info:hover,
.trend-card__info:focus-visible {
  color: var(--trend-accent);
}

.chart-frame {
  position: relative;
  margin-top: var(--line-height);
  touch-action: pan-y;
}

.trend-chart {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.trend-chart .chart-grid {
  stroke: var(--trend-grid);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-line {
  fill: none;
  stroke: var(--series-color);
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-line--muted,
.trend-chart .chart-point--muted {
  opacity: 0.3;
}

.trend-chart .chart-point {
  fill: var(--background-color);
  stroke: var(--series-color);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-point:hover,
.trend-chart .chart-point:focus,
.trend-chart .chart-focus-point {
  fill: var(--trend-accent);
  stroke: var(--trend-accent);
  outline: none;
}

.trend-chart .chart-hit-area {
  fill: transparent;
  cursor: crosshair;
  outline: none;
}

.trend-chart .chart-hit-area:focus {
  stroke: var(--trend-accent);
  stroke-dasharray: 2 3;
  stroke-width: 1;
}

.trend-chart .chart-crosshair {
  stroke: var(--trend-accent);
  stroke-dasharray: 3 3;
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-marker-band {
  fill: var(--trend-accent-soft);
}

.trend-chart .chart-marker {
  stroke: var(--trend-accent);
  stroke-dasharray: 4 4;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-marker--end {
  stroke-dasharray: 2 3;
}

.trend-chart .chart-marker-point {
  fill: var(--trend-accent);
  stroke: var(--background-color);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.trend-chart .chart-label,
.trend-chart .chart-marker-label {
  fill: var(--text-color-alt);
  font-family: var(--font-family);
  font-size: 12px;
}

.trend-chart .chart-marker-label {
  fill: var(--trend-accent);
  font-weight: var(--font-weight-bold);
}

.chart-readout {
  min-height: var(--line-height);
  margin: 0.5ch 0 0;
  color: var(--text-color-alt);
  font-size: 0.7rem;
}

.trend-card__source {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 2.4ch;
  height: 2.4ch;
  margin-top: 0;
  color: var(--text-color-alt);
  text-decoration: none;
}

.trend-card__source svg {
  display: block;
  width: 1.1em;
  height: 1.1em;
}

.trend-card__source:hover,
.trend-card__source:focus-visible {
  color: var(--trend-accent);
}

.loading-state,
.empty-state,
.error-state {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2ch;
  border: var(--border-thickness) dashed var(--text-color-alt);
  color: var(--text-color-alt);
}

.error-state {
  border-color: var(--trend-accent);
  color: var(--trend-accent);
}

dialog {
  width: min(62ch, calc(100% - 4ch));
  max-height: calc(100vh - 4ch);
  margin: auto;
  overflow: auto;
  padding: 2ch;
  border: var(--border-thickness) solid var(--text-color);
  box-shadow: 0.75ch 0.75ch 0 var(--trend-shadow);
  background: var(--background-color);
  color: var(--text-color);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.58);
}

.dialog-heading-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 2ch;
}

.dialog-close-row {
  flex: 0 0 auto;
  margin: 0;
}

.dialog-close-row button {
  width: auto;
  min-width: 0;
  height: calc(var(--line-height) * 1.75);
  padding: 0 0.75ch;
  font-size: 1.25rem;
  line-height: 1;
}

dialog h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

dialog p {
  margin-top: var(--line-height);
}

dialog p.eyebrow {
  margin-top: 0;
}

.dialog-markdown {
  max-width: 62ch;
}

.dialog-markdown h3 {
  margin-top: calc(var(--line-height) * 1.5);
  font-size: 1rem;
}

.dialog-markdown p {
  margin-top: var(--line-height);
}

.dialog-markdown ul {
  margin-top: var(--line-height);
  padding-left: 2ch;
}

.dialog-markdown li + li {
  margin-top: 0.5ch;
}

.dialog-markdown code {
  padding: 0 0.25ch;
  background: var(--background-color-alt);
}

.dialog-source {
  font-size: 0.75rem;
}

.icon-link {
  display: inline-grid;
  place-items: center;
  width: 2.4ch;
  height: 2.4ch;
  color: var(--text-color-alt);
}

.icon-link svg {
  display: block;
  width: 1.1em;
  height: 1.1em;
}

.icon-link:hover,
.icon-link:focus-visible {
  color: var(--trend-accent);
}

@media screen and (max-width: 720px) {
  .trend-list {
    grid-template-columns: 1fr;
  }

  .filter-button--method {
    margin-left: 0;
  }
}