:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #151b23;
  --line: #2a323d;
  --line-soft: #222a34;
  --ink: #e6edf3;
  --muted: #9198a1;
  --faint: #6e7681;
  --brand: #1db954;
  --warn: #d29922;
  --error: #f85149;
}

* {
  box-sizing: border-box;
}

/*
 * `hidden` loses to any `display` rule, and several classes here set one -
 * `.field` is flex, `.row` is flex - so hiding an element by attribute quietly
 * did nothing. This makes the attribute mean what it says.
 */
[hidden] {
  display: none !important;
}

/*
 * Centred with a ceiling rather than filling the viewport. The form is a fixed
 * 500px and the preview is capped by the card's own 1000px maximum, so past
 * ~1160px the extra width goes to a gap nobody asked for.
 */
body {
  margin: 0 auto;
  max-width: 1160px;
  padding: 0 24px;
  background: var(--bg);
  color: var(--ink);
  font:
    15px/1.5 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 28px 0 20px;
  border-bottom: 1px solid var(--line-soft);
}

/* The header block below is kept identical to the one in
   lastfm-recently-played-readme, so switching between the two sites shows no
   shift in the title, tagline or pills. Change both or neither. */
h1 {
  margin: 0 0 4px;
  font-size: 21px;
  letter-spacing: -0.01em;
}

h1 .accent {
  color: var(--brand);
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.repo-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  white-space: nowrap;
}

.repo-link:hover {
  color: var(--ink);
  border-color: var(--faint);
}

/* The wordmark is fixed red, so it does not follow the pill's hover color. */
.repo-link .lastfm {
  flex: none;
  width: auto;
}

main {
  padding: 24px 0 48px;
}

.policy-notice {
  margin: 0 0 24px;
  padding: 10px 12px;
  color: var(--warn);
  background: #d2992218;
  border: 1px solid #d2992240;
  border-radius: 8px;
  font-size: 13px;
}

.policy-notice a {
  color: inherit;
  font-weight: 600;
}

/*
 * The form is a fixed column and the preview takes the rest: the card can be
 * up to 1000px wide and the form cannot usefully use more. Card height changes
 * with track count, but the preview is in its own column, so it never reflows
 * the form.
 *
 * `minmax(0, …)` on both tracks, because a grid track's default `auto` minimum
 * refuses to shrink below its content - a long snippet in the <pre> would push
 * the column wider than the grid instead of scrolling inside it.
 */
.split {
  display: grid;
  grid-template-columns: minmax(0, 500px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

/* Keeps the card in view while the form is scrolled. */
.split > section:last-child {
  position: sticky;
  top: 24px;
}

@media (max-width: 980px) {
  .split {
    grid-template-columns: minmax(0, 1fr);
  }

  /* Stacked, the preview sits after the form, where sticking would pin it over
     the content below rather than beside it. */
  .split > section:last-child {
    position: static;
  }
}

/* The centred body carries the gutter, so it narrows with the layout. */
@media (max-width: 560px) {
  body {
    padding: 0 16px;
  }

  /* One column below the point where two would leave the selects too narrow to
     read their own option text. */
  .group-grid,
  .toggles {
    grid-template-columns: minmax(0, 1fr);
  }
}

fieldset.group {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px 18px;
  margin: 0 0 16px;
  background: var(--panel);
}

legend {
  padding: 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
}

.group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
}

.span-2 {
  grid-column: 1 / -1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.field-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

label {
  font-size: 13px;
  color: var(--muted);
}

input[type='text'],
select {
  font: inherit;
  font-size: 14px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
  min-width: 0;
}

input[type='text']:focus,
select:focus {
  outline: 2px solid var(--brand);
  outline-offset: -1px;
}

input[aria-invalid='true'] {
  border-color: var(--error);
}

input[type='range'] {
  width: 100%;
  accent-color: var(--brand);
}

.range-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.range-head output {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
}

.toggle input {
  accent-color: var(--brand);
  width: 15px;
  height: 15px;
}

.error {
  color: var(--error);
  font-size: 12px;
}

.hint {
  color: var(--faint);
  font-size: 12px;
  margin: 0 0 12px;
}

/* A disabled control is still readable, just clearly not in play. */
input:disabled,
select:disabled,
.toggle input:disabled {
  opacity: 0.4;
  cursor: default;
}

.toggle:has(input:disabled) {
  opacity: 0.5;
  cursor: default;
}

.scope-note {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--warn);
  background: #d2992218;
  border: 1px solid #d2992240;
  border-radius: 8px;
  padding: 8px 10px;
  margin: 0;
}

.scope-note a {
  color: inherit;
}

/* Colors ------------------------------------------------------------------ */

details.colors {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0;
  background: var(--bg);
}

details.colors > summary {
  cursor: pointer;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  /* The default triangle sits outside the flex row and cannot be aligned with
     the label, so it is replaced by the inline chevron. */
  list-style: none;
}

details.colors > summary::-webkit-details-marker {
  display: none;
}

.chevron {
  flex: none;
  transition: transform 150ms ease-in-out;
}

details.colors[open] > summary .chevron {
  transform: rotate(90deg);
}

@media (prefers-reduced-motion: reduce) {
  .chevron {
    transition: none;
  }
}

details.colors[open] > summary {
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}

.badge {
  background: var(--brand);
  color: #0d1117;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
}

.color-row {
  display: grid;
  grid-template-columns: 1fr 28px 96px auto;
  align-items: center;
  gap: 8px;
  padding: 0 12px 10px;
}

.color-row[data-unset='true'] input[type='text'] {
  color: var(--faint);
}

.swatch-wrap {
  position: relative;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.swatch-wrap[data-alpha='true']::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(45deg, #666 25%, transparent 25%, transparent 75%, #666 75%),
    linear-gradient(45deg, #666 25%, #999 25%, #999 75%, #666 75%);
  background-size: 8px 8px;
  background-position:
    0 0,
    4px 4px;
}

/*
 * A native color input draws its own inset border and padding around the
 * swatch, which shows through as a pale ring at the corners however far the
 * element is oversized. The oversize hides the straight edges; these strip the
 * chrome that produces the ring in the first place.
 */
.swatch-wrap input[type='color'] {
  position: absolute;
  inset: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.swatch-wrap input[type='color']::-webkit-color-swatch-wrapper {
  padding: 0;
  border: 0;
}

.swatch-wrap input[type='color']::-webkit-color-swatch {
  border: 0;
  border-radius: 0;
}

.swatch-wrap input[type='color']::-moz-color-swatch {
  border: 0;
  border-radius: 0;
}

.reset {
  font: inherit;
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 6px;
  padding: 5px 9px;
  cursor: pointer;
}

.reset:hover:not(:disabled) {
  color: var(--ink);
  border-color: var(--faint);
}

/*
 * Disabled while the field still matches the theme. Resetting something that is
 * already at its default looks like it did nothing, which is what made the
 * swatch appear not to follow the text field.
 */
.reset:disabled {
  opacity: 0.35;
  cursor: default;
}

#color-status {
  padding: 0 12px 12px;
  font-size: 12px;
  color: var(--faint);
}

#color-status[data-level='warn'] {
  color: var(--warn);
}

#color-status[data-level='error'] {
  color: var(--error);
}

/* Output ------------------------------------------------------------------ */

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.tab {
  font: inherit;
  font-size: 13px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
}

.tab[aria-selected='true'] {
  background: var(--panel);
  border-color: var(--line);
  color: var(--ink);
}

pre {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  margin: 0 0 10px;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12.5px;
  white-space: pre-wrap;
  word-break: break-all;
}

.row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

button.action,
a.action {
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}

button.action:hover:not(:disabled),
a.action:hover {
  border-color: var(--faint);
}

button.action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

a.action.primary,
button.action.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #08130b;
}

button.copied {
  color: var(--brand);
  border-color: var(--brand);
}

/*
 * No frame: a bordered panel around the card was a card around a card, and it
 * made the preview read as a component rather than as the image it will be.
 * The page background is GitHub-dark already, so this doubles as a realistic
 * backdrop - including for the transparent theme, which has nothing of its own.
 *
 * Left-aligned rather than centred, because that is where it sits in a README.
 */
.preview-frame {
  min-height: 120px;
}

.preview-frame img {
  display: block;
  max-width: 100%;
}

.preview-empty {
  color: var(--faint);
  font-size: 13px;
  margin: 0;
}

.connect {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 16px 18px;
  margin-bottom: 16px;
}

/* Account ----------------------------------------------------------------- */

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faint);
  flex: none;
}

.account[data-connected='true'] .dot {
  background: var(--brand);
}

.linklike {
  font: inherit;
  font-size: 12px;
  background: none;
  border: 0;
  padding: 0;
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.linklike:hover {
  color: var(--ink);
}

.manual-toggle {
  margin: 12px 0 0;
}

#manual-field {
  margin-top: 12px;
}

#manual-field .hint {
  margin: 8px 0 0;
}