/* The stepping grid figure (assets/grid.js). Colours come from the variables of
 * assets/gem.css: Tensix cores amber, X280 cores sapphire, the current step iolite. */

figure.km-grid {
  background: var(--st-card);
  border: 1px solid var(--st-border);
  border-radius: var(--radius-card);
  margin: 1.2em 0;
  padding: 0.8em 0.9em 0.9em;
}

figure.km-grid:focus-visible {
  outline: 2px solid var(--gt-iolite);
  outline-offset: 2px;
}

.km-svg {
  display: block;
  height: auto;
  margin: 0 auto;
  max-width: 34rem;
  width: 100%;
}

.km-svg rect {
  stroke-width: 1;
}

/* What each part is drawn in; a lit part is in use in the current step and gets the
   iolite ring. */
.km-svg .km-core {
  fill: color-mix(in srgb, var(--gem-amber) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-amber) 40%, transparent);
}

.km-svg .km-x280 {
  fill: color-mix(in srgb, var(--gem-sapphire) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-sapphire) 60%, transparent);
  stroke-width: 1.5;
}

.km-svg .km-host {
  fill: var(--st-alt);
  stroke: var(--st-muted);
  stroke-width: 1.5;
}

.km-svg .km-dram {
  fill: var(--st-border);
  stroke: none;
}

.km-svg .km-core.km-lit {
  fill: var(--gem-amber);
}

.km-svg .km-x280.km-lit {
  fill: var(--gem-sapphire);
}

.km-svg .km-host.km-lit,
.km-svg .km-dram.km-lit {
  fill: var(--st-border);
}

.km-svg .km-lit {
  stroke: var(--gt-iolite);
  stroke-width: 2.4;
}

.km-svg .km-text {
  fill: var(--st-text);
  font-family: var(--font-sans);
  font-size: 14px;
}

.km-svg .km-small {
  font-size: 13px;
}

.km-svg .km-muted {
  fill: var(--st-muted);
}

.km-svg .km-mark {
  fill: var(--ink-on-gem);
  font-size: 12px;
  font-weight: 700;
}

.km-svg .km-x280 + .km-text {
  fill: var(--gt-sapphire);
}

.km-svg .km-x280.km-lit + .km-text {
  fill: var(--gem-sapphire-light);
}

.km-svg .km-arrow {
  fill: none;
  stroke-linecap: round;
  stroke-width: 2.4;
}

.km-svg .km-arrow.km-command {
  stroke: var(--gt-sapphire);
}

.km-svg .km-arrow.km-data {
  stroke: var(--st-text);
  stroke-dasharray: 5 3.5;
}

.km-svg .km-arrow.km-reply {
  stroke: var(--gt-sage);
  stroke-dasharray: 1 4.5;
  stroke-width: 3;
}

.km-svg .km-arrow.km-broadcast {
  stroke: var(--gt-aquamarine);
}

.km-svg .km-arrow.km-routed {
  stroke: var(--gt-taaffeite);
}

.km-svg .km-arrow.km-error {
  stroke: var(--gt-coral);
}

.km-svg .km-head.km-command {
  fill: var(--gt-sapphire);
}

.km-svg .km-head.km-data {
  fill: var(--st-text);
}

.km-svg .km-head.km-reply {
  fill: var(--gt-sage);
}

.km-svg .km-head.km-broadcast {
  fill: var(--gt-aquamarine);
}

.km-svg .km-head.km-routed {
  fill: var(--gt-taaffeite);
}

.km-svg .km-head.km-error {
  fill: var(--gt-coral);
}

.km-bar {
  align-items: center;
  display: flex;
  gap: 0.6rem;
  justify-content: space-between;
  margin-top: 0.7rem;
}

.km-bar button {
  background: var(--st-card);
  border: 1px solid var(--st-border);
  border-radius: var(--radius-control);
  color: var(--st-text);
  cursor: pointer;
  font: inherit;
  font-size: var(--fs-small);
  min-width: 6.2rem;
  padding: 0.35rem 0.7rem;
}

.km-bar button:hover:not(:disabled),
.km-bar button:focus-visible {
  border-color: var(--gt-iolite);
  color: var(--gt-iolite);
}

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

.km-count {
  background: color-mix(in srgb, var(--gem-iolite) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--gem-iolite) 40%, transparent);
  border-radius: var(--radius-pill);
  color: var(--gt-iolite);
  font-size: var(--fs-chip);
  line-height: 1;
  padding: 0.25rem 0.6rem;
}

.km-label {
  font-size: var(--fs-small);
  margin: 0.7rem 0 0;
  min-height: 3.2em;
}

/* A run's output: a card of its own, marked by its pill label in the text above it. */
.md-typeset .km-output {
  border-color: color-mix(in srgb, var(--gem-sage) 40%, transparent);
}

@media (max-width: 30em) {
  .km-bar button {
    min-width: 0;
    padding: 0.35rem 0.5rem;
  }
}

/* The lesson diagrams (assets/diagram.js): boxes in the gem of their kind, arrows in
   the gem of what they carry, the reader's place in iolite. */
figure.km-diagram {
  display: block;
  box-sizing: border-box;
  width: 100%;
  background: var(--st-card);
  border: 1px solid var(--st-border);
  border-radius: var(--radius-card);
  margin: 1.2em 0;
  padding: 0.9em 0.9em 0.7em;
  overflow-x: auto;
}

figure.km-diagram figcaption {
  color: var(--st-muted);
  font-size: var(--fs-small);
  margin-top: 0.6rem;
  text-align: center;
}

.kd-svg,
figure.km-diagram svg.kd-svg {
  display: block;
  max-width: none !important;
  margin: 0 auto;
  overflow: visible;
}

.kd-text {
  fill: var(--st-text);
  font-family: var(--font-sans);
  font-size: 14px;
}

.kd-code {
  fill: var(--st-text);
  font-family: var(--font-mono);
  font-size: 14px;
}

.kd-named {
  fill: var(--gt-iolite);
}

.kd-note {
  font-size: 13.5px;
}

.kd-small {
  fill: var(--st-muted);
  font-size: 13px;
}

.kd-box {
  fill: var(--st-alt);
  stroke: var(--st-border);
  stroke-width: 1.2;
}

.kd-box.kd-dashed {
  stroke-dasharray: 5 4;
}

.kd-box.kd-here {
  stroke: var(--gt-iolite);
  stroke-width: 2.4;
}

.kd-box.g-amber {
  fill: color-mix(in srgb, var(--gem-amber) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-amber) 40%, transparent);
}

.kd-box.g-sapphire {
  fill: color-mix(in srgb, var(--gem-sapphire) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-sapphire) 40%, transparent);
}

.kd-box.g-aquamarine {
  fill: color-mix(in srgb, var(--gem-aquamarine) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-aquamarine) 40%, transparent);
}

.kd-box.g-taaffeite {
  fill: color-mix(in srgb, var(--gem-taaffeite) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-taaffeite) 40%, transparent);
}

.kd-box.g-coral {
  fill: color-mix(in srgb, var(--gem-coral) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-coral) 40%, transparent);
}

.kd-box.g-sage {
  fill: color-mix(in srgb, var(--gem-sage) 10%, var(--st-card));
  stroke: color-mix(in srgb, var(--gem-sage) 40%, transparent);
}

.kd-bracket {
  fill: none;
  stroke: var(--st-muted);
  stroke-width: 1.2;
}

.kd-arrow {
  fill: none;
  stroke: var(--st-muted);
  stroke-linecap: round;
  stroke-width: 1.8;
}

.kd-arrow.kd-command {
  stroke: var(--gt-sapphire);
}

.kd-arrow.kd-data {
  stroke: var(--st-text);
  stroke-dasharray: 5 3.5;
}

.kd-arrow.kd-reply {
  stroke: var(--gt-sage);
  stroke-dasharray: 1 4.5;
  stroke-width: 2.6;
}

.kd-arrow.kd-broadcast {
  stroke: var(--gt-aquamarine);
}

.kd-arrow.kd-routed {
  stroke: var(--gt-taaffeite);
}

.kd-arrow.kd-error {
  stroke: var(--gt-coral);
}

.kd-head {
  fill: var(--st-muted);
}

.kd-head.kd-command {
  fill: var(--gt-sapphire);
}

.kd-head.kd-data {
  fill: var(--st-text);
}

.kd-head.kd-reply {
  fill: var(--gt-sage);
}

.kd-head.kd-broadcast {
  fill: var(--gt-aquamarine);
}

.kd-head.kd-routed {
  fill: var(--gt-taaffeite);
}

.kd-head.kd-error {
  fill: var(--gt-coral);
}

/* The lesson's line of links, above and below the text, and its eyebrow. */
.km-eyebrow {
  color: var(--st-muted);
  font-size: var(--fs-small);
  margin: 0 0 0.2rem;
}

.km-lesson-bar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-size: var(--fs-small);
  gap: 0.4rem 1rem;
  justify-content: space-between;
  margin: 0.6rem 0 1.4rem;
}

.km-lesson-bar .km-prev,
.km-lesson-bar .km-next {
  flex: 1 1 14rem;
}

.km-lesson-bar .km-up {
  color: var(--st-muted);
  flex: 0 0 auto;
}

.km-lesson-bar .km-next {
  text-align: right;
}

@media (max-width: 30em) {
  .km-lesson-bar .km-next {
    text-align: left;
  }
}

/* A table of lessons uses the whole width. */
.md-typeset__table {
  display: block;
  width: 100%;
}

.md-typeset__table table:not([class]) {
  display: table;
  width: 100%;
}