:root {
  --ewi-unavailable: #e05252;
}

/* Interactive EWI fingering diagram (ewi_fingerings.md).

   Colours come from Material's theme variables so the diagram follows the
   light/dark palette toggle. The fills and strokes exported by Illustrator are
   presentation attributes, which lose to these rules. */

/* Diagram on the left, readout above the table on the right. The minmax(0, 1fr)
   is what lets the right column shrink below the table's natural width; a plain
   1fr would refuse to go narrower than 50,000-odd pixels of entries. */
.ewi-page {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem 1.5rem;
  margin: 1.5rem 0;
}

/* Note and diagram travel together as one block, centred on each other, and the
   pair is centred vertically against the table beside it. */
.ewi-instrument {
  grid-column: 1;
  grid-row: 2;
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

/* Spans both columns so the controls run the full width, rather than being
   squeezed into the column the table occupies, and stacks key layout above the
   buttons. */
.ewi-actions {
  grid-column: 1 / -1;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
}

.ewi-diagram svg {
  display: block;
  height: 480px;
  width: auto;
}

.ewi-body > * {
  fill: var(--md-default-fg-color--lightest);
  stroke: var(--md-default-fg-color--lighter);
}

/* Keys the model has but this page cannot represent. */
.ewi-extra > * {
  fill: var(--md-default-bg-color);
  stroke: var(--md-default-fg-color--lightest);
}

.ewi-key > * {
  fill: var(--md-default-bg-color);
  stroke: var(--md-default-fg-color--light);
  cursor: pointer;
}

.ewi-key--down > * {
  fill: var(--md-primary-fg-color);
  stroke: var(--md-primary-fg-color);
}

.ewi-key:hover > * {
  stroke: var(--md-accent-fg-color);
}

.ewi-key:focus {
  outline: none;
}

.ewi-key:focus-visible > * {
  stroke: var(--md-accent-fg-color);
}

/* Keys the chosen instrument does not have. Drawn, and deliberately legible
   rather than hidden: where an instrument has one of several pinky keys, these
   are what tell the player which position theirs occupies. They stay clickable
   so that a fingering arriving from a link or a code can always be edited.
   Placed after the rules above so they win at equal specificity. */
.ewi-key--absent > * {
  fill: none;
  /* With fill:none only the stroke itself would be clickable. */
  pointer-events: all;
  stroke: var(--md-default-fg-color--lighter);
  stroke-dasharray: 3 2;
}

.ewi-key--absent:hover > *,
.ewi-key--absent:focus-visible > * {
  stroke: var(--md-accent-fg-color);
}

/* Pressed, but not a key this instrument has. Coloured differently from an
   ordinary pressed key, and still dashed, so the signal does not rest on
   colour alone. */
.ewi-key--absent.ewi-key--down > * {
  fill: var(--ewi-unavailable);
  stroke: var(--ewi-unavailable);
  stroke-dasharray: 3 2;
}

/* Shows the current fingering's code, and accepts one typed in. Bidirectional,
   which is what earns it a place beside the note name. */
.ewi-code {
  width: 4.5rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font-family: monospace;
  font-size: 0.85rem;
  text-align: center;
  text-transform: uppercase;
}

.ewi-code:focus {
  outline: none;
  border-color: var(--md-accent-fg-color);
}

/* Three characters that do not name a fingering. Quiet, and it clears itself
   as soon as the value becomes valid again. */
.ewi-code--invalid {
  border-color: var(--ewi-unavailable);
}

.ewi-note {
  /* Reserved width so that column one, and therefore the table beside it, does
     not change width as the note name changes length. */
  min-width: 3.6em;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
}

.ewi-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
}

/* Flipping only the drawing: the keys keep their identities, so a mirrored
   diagram still toggles exactly the keys it appears to. */
.ewi-diagram--mirrored svg {
  transform: scaleX(-1);
}

.ewi-check {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

/* Fixed rather than intrinsic: the options arrive from the sets file after
   first paint, and a select sized to its widest option would silently grow the
   first time it was opened. */
.ewi-set {
  width: 10rem;
}

.ewi-controls select,
.ewi-set {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font-size: 0.7rem;
}

/* Only shown when there is something to say, so it costs no layout otherwise. */
.md-typeset .ewi-status {
  margin: 0;
  font-size: 0.65rem;
  color: var(--md-default-fg-color--light);
}

/* Held at the natural width of "Copy link" so the transient labels, which are
   both narrower, do not resize the button as they swap in. */
#ewi-copy {
  min-width: 4.75rem;
}

.ewi-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.ewi-button {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 0.2rem;
  background: transparent;
  color: var(--md-default-fg-color);
  cursor: pointer;
  font-size: 0.7rem;
}

.ewi-button:hover:not(:disabled) {
  border-color: var(--md-accent-fg-color);
  color: var(--md-accent-fg-color);
}

.ewi-button:disabled {
  opacity: 0.4;
  cursor: default;
}

/* The collection. One horizontal scrollbar for the whole table: the grid is as
   wide as its widest row, and the note column is pinned so it stays readable
   while the entries scroll under it. */
.ewi-table-scroll {
  grid-column: 2;
  grid-row: 2;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--md-default-fg-color--lighter) transparent;
}

.ewi-table {
  --ewi-entry-height: 1.2rem;

  display: grid;
  /* The entries column is at least as wide as its widest row, but stretches to
     fill the table when the collection is small, so rows always span the full
     width. */
  grid-template-columns: max-content minmax(max-content, 1fr);
  align-items: stretch;
  width: max-content;
  min-width: 100%;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  font-size: 0.7rem;
}

.ewi-row-note,
.ewi-row-entries {
  border-top: 1px solid var(--md-default-fg-color--lightest);
  padding: 0.2rem 0.5rem;
}

.ewi-row-note {
  position: sticky;
  left: 0;
  z-index: 1;
  border-right: 1px solid var(--md-default-fg-color--lightest);
  background: var(--md-default-bg-color);
  font-weight: 700;
  white-space: nowrap;
  line-height: var(--ewi-entry-height);
}

.ewi-row-entries {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.2rem;
  min-height: var(--ewi-entry-height);
}

.ewi-entry {
  display: inline-flex;
  align-items: center;
  flex: none;
  box-sizing: border-box;
  height: var(--ewi-entry-height);
  padding: 0 0.35rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 0.15rem;
  background: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font-family: monospace;
  font-size: 0.7rem;
  cursor: pointer;
}

.ewi-entry:hover {
  border-color: var(--md-accent-fg-color);
  color: var(--md-accent-fg-color);
}

.ewi-entry--selected {
  border-color: var(--md-primary-fg-color);
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}

/* A fingering that needs a key the chosen instrument does not have. Dashed as
   well as coloured, echoing the ghost keys on the diagram. Text and border
   only — with a large collection on a reduced layout nearly every entry
   qualifies, and a filled background would read as breakage. */
.ewi-entry--unplayable {
  border-style: dashed;
  border-color: var(--ewi-unavailable);
  color: var(--ewi-unavailable);
}

/* Selection keeps its fill and text; the dashes carry the signal instead. */
.ewi-entry--selected.ewi-entry--unplayable {
  color: var(--md-primary-bg-color);
}

@keyframes ewi-flash {
  from {
    border-color: var(--md-accent-fg-color);
    background: var(--md-accent-fg-color);
    color: var(--md-primary-bg-color);
  }
}

.ewi-entry--flash {
  animation: ewi-flash 0.7s ease-out;
}

/* Narrow screens: one column, diagram above the readout and table. Kept last
   so these overrides beat the grid placement set on the rules above. */
@media screen and (max-width: 60em) {
  .ewi-page {
    grid-template-columns: minmax(0, 1fr);
  }

  .ewi-instrument,
  .ewi-actions,
  .ewi-table-scroll {
    grid-column: 1;
    grid-row: auto;
  }

  .ewi-instrument {
    justify-self: start;
  }
}

/* Opt-in tighter list spacing: Material puts 0.5em under every list item,
   which is airy for a long reference list.

   attr_list can only attach a class to the LAST list item, and only when the
   `{ .ewi-tight }` marker sits on its own line after the list, so :has() is
   what reaches the rest of the items from there. A browser without :has()
   simply keeps the default spacing. */
.md-typeset ul:has(> li.ewi-tight) > li,
.md-typeset ol:has(> li.ewi-tight) > li {
  margin-bottom: 0;
}