/*
 * Desktop Material documentation site — changelog viewer styles.
 *
 * Mobile-first: one column from 320 CSS px upward, no horizontal *page*
 * scrolling (the calendar grid scrolls inside its own container instead of
 * shrinking its day targets below 44 px), and every interactive target at least
 * 44 px in its smallest dimension.
 *
 * Colour, shape and elevation come from the M3 tokens defined in docs-hub.css.
 * Each `var()` carries a fallback so this stylesheet still renders sensibly if
 * it is ever loaded on a page that does not define them.
 */

.dm-changelog {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.dm-changelog *,
.dm-changelog *::before,
.dm-changelog *::after {
  box-sizing: border-box;
}

.dm-changelog-heading {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.25;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-blurb,
.dm-changelog-source {
  margin: 0;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-source {
  font-size: 0.875rem;
}

/* --------------------------------------------------------------- controls */

.dm-changelog-controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dm-changelog-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--md-outline-variant, #cac4d0);
  border-radius: var(--md-shape-lg, 16px);
  background: var(--md-surface-container-low, #f7f2fa);
  min-width: 0;
}

.dm-changelog-group-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.3;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-label {
  display: block;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-search-row,
.dm-changelog-date-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.dm-changelog-field {
  display: flex;
  align-items: stretch;
  gap: 8px;
  min-width: 0;
}

.dm-changelog-input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 44px;
  padding: 10px 12px;
  font: inherit;
  color: var(--md-on-surface, #1d1b20);
  background: var(--md-surface-container-lowest, #ffffff);
  border: 1px solid var(--md-outline, #6f6779);
  border-radius: var(--md-shape-sm, 8px);
}

.dm-changelog-input[aria-invalid='true'] {
  border-color: var(--md-error, #b3261e);
}

.dm-changelog-select {
  min-height: 44px;
  min-width: 88px;
  padding: 8px;
  font: inherit;
  color: var(--md-on-surface, #1d1b20);
  background: var(--md-surface-container-lowest, #ffffff);
  border: 1px solid var(--md-outline, #6f6779);
  border-radius: var(--md-shape-sm, 8px);
}

.dm-changelog-button,
.dm-changelog-chip,
.dm-changelog-token,
.dm-changelog-icon-button {
  min-height: 44px;
  padding: 10px 16px;
  font: inherit;
  color: var(--md-on-secondary-container, #1d192b);
  background: var(--md-secondary-container, #e8def8);
  border: 1px solid transparent;
  border-radius: var(--md-shape-full, 999px);
  cursor: pointer;
}

.dm-changelog-icon-button {
  min-width: 44px;
  padding: 10px;
  text-align: center;
}

.dm-changelog-token {
  min-width: 44px;
  padding: 10px 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--md-surface-container-highest, #e6e0e9);
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-chip[aria-pressed='true'],
.dm-changelog-chip[aria-expanded='true'] {
  background: var(--md-primary, #6750a4);
  color: var(--md-on-primary, #ffffff);
}

.dm-changelog-button:hover,
.dm-changelog-chip:hover,
.dm-changelog-token:hover,
.dm-changelog-icon-button:hover {
  border-color: var(--md-outline, #6f6779);
}

.dm-changelog :focus-visible {
  outline: 3px solid var(--md-primary, #6750a4);
  outline-offset: 2px;
}

.dm-changelog-modes,
.dm-changelog-presets,
.dm-changelog-tokens,
.dm-changelog-flags,
.dm-changelog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.dm-changelog-check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-size: 0.875rem;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-check input {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
}

.dm-changelog-hint {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--md-on-surface-variant, #49454f);
}

/*
 * These lines quote the reader's own search text back at them — a 200-character
 * pattern with no spaces included — so they must wrap mid-token. Without this a
 * long query pushes the whole page sideways at 320 CSS px.
 */
.dm-changelog-status,
.dm-changelog-summary-line,
.dm-changelog-error,
.dm-changelog-empty-facts,
.dm-changelog-hint {
  overflow-wrap: anywhere;
}

.dm-changelog-status,
.dm-changelog-summary-line {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-status-error,
.dm-changelog-error {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--md-error, #b3261e);
}

.dm-changelog-error:empty {
  display: none;
}

.dm-changelog-summary {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px;
  border-radius: var(--md-shape-md, 12px);
  background: var(--md-surface-container, #f3edf7);
}

.dm-changelog-builder {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border: 1px dashed var(--md-outline, #6f6779);
  border-radius: var(--md-shape-md, 12px);
  background: var(--md-surface-container-lowest, #ffffff);
}

.dm-changelog-builder[hidden] {
  display: none;
}

.dm-changelog-literal {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.dm-changelog-date-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.dm-changelog-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------- calendar */

.dm-changelog-calendar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--md-outline-variant, #cac4d0);
  border-radius: var(--md-shape-lg, 16px);
  background: var(--md-surface-container-lowest, #ffffff);
  box-shadow: var(
    --md-elevation-2,
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 2px 6px 2px rgba(0, 0, 0, 0.15)
  );
}

.dm-changelog-calendar[hidden] {
  display: none;
}

.dm-changelog-calendar-head,
.dm-changelog-calendar-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

/*
 * Day targets keep their full 44 px rather than shrinking on a narrow screen,
 * so the grid scrolls inside this container. The page itself never scrolls
 * sideways.
 */
.dm-changelog-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.dm-changelog-grid-row {
  display: flex;
  gap: 2px;
  min-width: 322px;
}

.dm-changelog-grid-head {
  flex: 1 1 44px;
  min-width: 44px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-grid-cell {
  flex: 1 1 44px;
  min-width: 44px;
  display: flex;
}

.dm-changelog-day {
  flex: 1 1 auto;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  font: inherit;
  color: var(--md-on-surface, #1d1b20);
  background: var(--md-surface-container-low, #f7f2fa);
  border: 1px solid transparent;
  border-radius: var(--md-shape-sm, 8px);
  cursor: pointer;
}

.dm-changelog-day-outside {
  color: var(--md-on-surface-variant, #49454f);
  background: transparent;
}

.dm-changelog-day[aria-pressed='true'] {
  background: var(--md-primary-container, #eaddff);
  color: var(--md-on-primary-container, #21005d);
}

.dm-changelog-day[data-edge='true'] {
  background: var(--md-primary, #6750a4);
  color: var(--md-on-primary, #ffffff);
}

.dm-changelog-day[aria-current='date'] {
  border-color: var(--md-primary, #6750a4);
}

/* ---------------------------------------------------------------- results */

.dm-changelog-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.dm-changelog-list[hidden] {
  display: none;
}

.dm-changelog-release {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--md-outline-variant, #cac4d0);
  border-radius: var(--md-shape-lg, 16px);
  background: var(--md-surface-container-lowest, #ffffff);
  min-width: 0;
}

.dm-changelog-release-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.dm-changelog-version {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.3;
  /* A version is an identifier: it wraps only where it must, and never breaks
     into something that reads as a different version. */
  overflow-wrap: anywhere;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-date {
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-date-unrecorded {
  padding: 2px 8px;
  border-radius: var(--md-shape-full, 999px);
  background: var(--md-surface-container-high, #ece6f0);
}

.dm-changelog-count {
  margin-inline-start: auto;
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-entries {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.dm-changelog-entry {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.dm-changelog-category {
  align-self: flex-start;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--md-shape-full, 999px);
  background: var(--md-secondary-container, #e8def8);
  color: var(--md-on-secondary-container, #1d192b);
}

.dm-changelog-category[data-category='fixed'] {
  background: var(--md-tertiary-container, #ffd8e4);
  color: var(--md-on-tertiary-container, #31111d);
}

.dm-changelog-category[data-category='removed'],
.dm-changelog-category[data-category='unshipped'] {
  background: var(--md-error-container, #f9dedc);
  color: var(--md-on-error-container, #410e0b);
}

.dm-changelog-text {
  /* Entry text is quoted verbatim, so long identifiers and URLs must wrap
     rather than push the page sideways. */
  overflow-wrap: anywhere;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-commit {
  /* The commit reference is the entry's evidence, so it sits beside the text
     rather than under it — but it is evidence, not the headline, so it reads
     quieter than the sentence it supports. */
  flex: none;
  align-self: baseline;
  margin-left: 8px;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--md-surface-container-high, #ece6f0);
  color: var(--md-on-surface-variant, #49454f);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  text-decoration: none;
  white-space: nowrap;
}

.dm-changelog-commit:hover,
.dm-changelog-commit:focus-visible {
  background: var(--md-secondary-container, #e8def8);
  color: var(--md-on-secondary-container, #1d192b);
  text-decoration: underline;
}

.dm-changelog-commit:focus-visible {
  outline: 2px solid var(--md-primary, #6750a4);
  outline-offset: 2px;
}

.dm-changelog-empty {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--md-outline-variant, #cac4d0);
  border-radius: var(--md-shape-lg, 16px);
  background: var(--md-surface-container, #f3edf7);
}

.dm-changelog-empty[hidden] {
  display: none;
}

.dm-changelog-empty-lead {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--md-on-surface, #1d1b20);
}

.dm-changelog-empty-facts {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant, #49454f);
}

.dm-changelog-more[hidden] {
  display: none;
}

.dm-changelog-more {
  align-self: flex-start;
}

/* Bilingual mode: the secondary label stays present but visually secondary. */
.dm-changelog .i18n-b:not(:empty) {
  display: block;
  font-size: 0.9em;
  opacity: 0.8;
}

/* ------------------------------------------------------------- wider views */

@media (min-width: 600px) {
  .dm-changelog-search-row,
  .dm-changelog-date-row {
    flex-direction: row;
    align-items: flex-end;
  }

  .dm-changelog-search-row .dm-changelog-label {
    flex: 0 0 auto;
    align-self: center;
  }

  .dm-changelog-field {
    flex: 1 1 auto;
  }

  .dm-changelog-date-field {
    flex: 1 1 180px;
  }

  .dm-changelog-literal {
    flex-direction: row;
    align-items: center;
  }

  .dm-changelog-entry {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
  }

  .dm-changelog-category {
    flex: 0 0 auto;
  }
}

/* ------------------------------------------------------- user preferences */

@media (prefers-reduced-motion: reduce) {
  .dm-changelog * {
    transition: none !important;
    animation: none !important;
  }
}

@media (forced-colors: active) {
  .dm-changelog-group,
  .dm-changelog-release,
  .dm-changelog-calendar,
  .dm-changelog-empty,
  .dm-changelog-day {
    border-color: CanvasText;
  }

  /* Forced colours drop the fills, so selection has to be stated in text-safe
     terms rather than by background alone. */
  .dm-changelog-day[aria-pressed='true'],
  .dm-changelog-chip[aria-pressed='true'] {
    border-width: 3px;
    forced-color-adjust: none;
    background: Highlight;
    color: HighlightText;
  }
}