/* The tokens and the layout of the reference sheet the page was drawn from. */

/* Barlow and Barlow Condensed, the latin subsets only, copied out of @fontsource and
   served from this origin. Self-hosted rather than fetched from Google's CDN: a page whose
   whole claim is that nothing leaves your machine should not make a third party watch you
   read it. The OFL text ships beside the files as required.
   ceiling: latin only. A visitor whose name needs latin-ext or Vietnamese gets the
   system UI face for those glyphs; the fix is copying two more subsets in. */
@font-face {
  font-family: Barlow;
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/barlow-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: Barlow;
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/assets/fonts/barlow-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: Barlow;
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/barlow-latin-700-normal.woff2") format("woff2");
}

@font-face {
  font-family: Barlow;
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("/assets/fonts/barlow-latin-800-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Barlow Condensed";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/assets/fonts/barlow-condensed-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Barlow Condensed";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/barlow-condensed-latin-700-normal.woff2") format("woff2");
}

:root {
  color-scheme: dark light;

  --bg: #141416;
  --panel: #1b1b1f;
  --panel2: #202026;
  --line: #2a2a30;
  --line2: #35353d;
  --ink: #e6e3dc;
  --ink2: #9a978f;
  --ink3: #8a887f;
  --accent: #9bcb4f;
  --accent-ink: #17200b;
  --accent-edge: #6d9333;
  --focus: #9bcb4f;
  --lamp-run: #9bcb4f;
  --lamp-off: #2c2c33;
  --lamp-ring: #3a3a42;
  --halo: rgb(155 203 79 / 18%);
  --done: #6f9a3a;
  --screen: #0b0b0d;

  --radius-control: 4px;
  --radius-sheet: 6px;
  --step: 4px;

  --face: Barlow, ui-sans-serif, system-ui, sans-serif;
  --face-engraved: "Barlow Condensed", Barlow, ui-sans-serif, system-ui, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f2ec;
    --panel: #fbfaf7;
    --panel2: #eceae3;
    --line: #dad8d0;
    --line2: #c9c7be;
    --ink: #1c1c1e;
    --ink2: #5c5b56;
    --ink3: #6b6a64;
    --accent-edge: #6e9a33;
    --focus: #5f8a2b;
    --lamp-run: #5f8a2b;
    --lamp-off: #dedcd4;
    --lamp-ring: #c9c7be;
    --halo: rgb(95 138 43 / 18%);
    --done: #55673f;
    --screen: #1c1c1e;
  }
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--face);
  font-size: 14px;
  line-height: 1.45;
}

:where(a) {
  color: var(--ink);
  text-decoration-color: var(--line2);
  text-underline-offset: 3px;
}

:where(a):hover {
  text-decoration-color: var(--focus);
}

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

code {
  font-family: inherit;
  font-weight: 600;
  color: var(--ink);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: calc(var(--step) * 4);
  top: calc(var(--step) * -16);
  z-index: 1;
  padding: calc(var(--step) * 2) calc(var(--step) * 4);
  background: var(--panel);
  border: 1px solid var(--line2);
  border-radius: var(--radius-control);
  transition: top 150ms ease-out;
}

.skip-link:focus {
  top: calc(var(--step) * 4);
}

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

.engraved {
  font-family: var(--face-engraved);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink3);
  margin: 0;
}

.engraved-strong {
  font-weight: 700;
  color: var(--ink);
}

.page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 calc(var(--step) * 12);
}

/* Lamps ------------------------------------------------------------------- */

/* Never on their own: the reference pairs every lamp with the state word beside it, so
   the colour is a second reading of something already written down. */
.lamp {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lamp-off);
  box-shadow: inset 0 0 0 1px var(--lamp-ring);
}

.lamp[data-lamp="run"] {
  background: var(--lamp-run);
  box-shadow: 0 0 0 3px var(--halo);
  animation: lamp-pulse 1.2s ease-in-out infinite;
}

.lamp[data-lamp="done"] {
  background: var(--done);
  box-shadow: none;
}

@keyframes lamp-pulse {
  50% {
    box-shadow: 0 0 0 6px transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lamp[data-lamp="run"] {
    animation: none;
  }
}

/* Icons ------------------------------------------------------------------- */

/* The service marks are single-colour silhouettes painted as masks, the same trick the
   logo uses, so one file covers both themes and every size. */
.glyph {
  flex: none;
  width: 16px;
  height: 16px;
}

.glyph-large {
  width: 26px;
  height: 26px;
}

.glyph-github,
.glyph-patreon,
.glyph-coffee {
  display: inline-block;
}

/* The accent is the mark's own green, and it is what makes the two donation links read as
   something to press rather than another item of chrome. GitHub is a source link, not a
   donation, so it stays the colour of the text it sits in. */
.glyph-patreon,
.glyph-coffee {
  background-color: var(--lamp-run);
}

.glyph-github {
  background-color: currentColor;
  -webkit-mask: url("/assets/github.svg") center / contain no-repeat;
  mask: url("/assets/github.svg") center / contain no-repeat;
}

.glyph-patreon {
  -webkit-mask: url("/assets/patreon.svg") center / contain no-repeat;
  mask: url("/assets/patreon.svg") center / contain no-repeat;
}

.glyph-coffee {
  -webkit-mask: url("/assets/buymeacoffee.svg") center / contain no-repeat;
  mask: url("/assets/buymeacoffee.svg") center / contain no-repeat;
}

/* Masthead ---------------------------------------------------------------- */

.masthead {
  display: flex;
  align-items: center;
  gap: calc(var(--step) * 6);
  height: 64px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: calc(var(--step) * 2.5);
  margin-right: auto;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

/* logo-mark.svg is drawn in currentColor, which an <img> element cannot inherit, so it
   is painted as a mask filled with the accent instead. That also keeps one copy of the
   artwork for both sizes. */
.mark {
  display: inline-block;
  background-color: var(--accent);
  -webkit-mask: url("/assets/logo-mark.svg") center / contain no-repeat;
  mask: url("/assets/logo-mark.svg") center / contain no-repeat;
}

/* The goo reads as a descender only if the mark sits below the text baseline. */
.mark-inline {
  width: 26px;
  height: 26px;
  transform: translateY(3px);
}

.mark-hero {
  width: 96px;
  height: 96px;
}

.masthead-links {
  display: flex;
  align-items: center;
  gap: calc(var(--step) * 6);
}

.masthead-links a {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--step) * 1.5);
  color: var(--ink2);
  font-size: 13px;
  text-decoration: none;
}

.masthead-links a:hover {
  color: var(--ink);
}

/* Hero -------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: calc(var(--step) * 14);
  align-items: start;
  padding: calc(var(--step) * 16) 0 calc(var(--step) * 18);
}

.hero-pitch {
  display: flex;
  flex-direction: column;
  gap: calc(var(--step) * 6);
  max-width: 560px;
}

h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.lede {
  max-width: 34ch;
  margin: 0;
  color: var(--ink2);
  font-size: 18px;
  text-wrap: pretty;
}

.command {
  display: flex;
  align-items: center;
  gap: calc(var(--step) * 3);
  max-width: 440px;
  margin-top: calc(var(--step) * 2);
  padding: calc(var(--step) * 2.5) calc(var(--step) * 2.5) calc(var(--step) * 2.5)
    calc(var(--step) * 4.5);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sheet);
}

.command code {
  flex: 1;
  font-size: 18px;
  letter-spacing: -0.01em;
}

/* The same sheet at prose scale, sitting inside a sentence rather than under the headline:
   the hero command is the one being offered, this is the one being explained. */
.command-inline {
  display: inline-flex;
  max-width: none;
  margin: 0 calc(var(--step) * 0.5) 0 0;
  padding: calc(var(--step) * 0.5) calc(var(--step) * 1.5);
  gap: calc(var(--step) * 2);
  vertical-align: baseline;
}

.command-inline code {
  flex: 0 1 auto;
  font-size: 14px;
}

.key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--step) * 1.5);
  min-width: 96px;
  min-height: 32px;
  padding: calc(var(--step) * 2) calc(var(--step) * 3.5);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent);
  border: 0;
  border-radius: var(--radius-control);
  cursor: pointer;
}

/* The hero key is a 44 px target under the headline; this one sits in a line of prose and
   would break the leading at that height. It also gives up the accent fill: the green marks
   the one thing the page is asking you to press, and two of them on a page is none. */
.key-small {
  min-width: 0;
  min-height: 0;
  padding: calc(var(--step) * 0.5) calc(var(--step) * 1.5);
  font-size: 12px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line2);
  box-shadow: none;
}

.key-small:hover {
  background: var(--panel2);
}

/* One row per platform, so a reader takes their own line instead of parsing all three. The
   label column is fixed so the commands start on the same edge and read as a set. */
.step-line {
  margin: 0;
}

.picks {
  display: grid;
  gap: calc(var(--step) * 1.5);
  margin: calc(var(--step) * 2) 0;
}

.pick {
  display: flex;
  align-items: center;
  gap: calc(var(--step) * 2.5);
}

.pick dt {
  flex: 0 0 auto;
  min-width: 56px;
  color: var(--ink2);
}

.pick dd {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--step) * 2);
  margin: 0;
  padding: calc(var(--step) * 0.5) calc(var(--step) * 1.5);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
}

.pick dd code {
  font-size: 14px;
}

.key-glyph {
  width: 15px;
  height: 15px;
}

.key-glyph-done,
.key[data-copied] .key-glyph-copy {
  display: none;
}

.key[data-copied] .key-glyph-done {
  display: inline;
}

/* Tally board ------------------------------------------------------------- */

.tally {
  margin-top: calc(var(--step) * 3);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sheet);
  overflow: hidden;
}

.tally-board {
  margin: 0;
}

.tally-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: calc(var(--step) * 4);
  /* The negative margin lands the first row's rule on the sheet's own border instead of
     one pixel below it. */
  margin-top: -1px;
  padding: calc(var(--step) * 4) calc(var(--step) * 4.5);
  border-top: 1px solid var(--line);
}

.tally-item dd {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  line-height: 1;
}

/* Anything slower than about a second shows the final shape rather than a spinner. The
   bars are the row's own two boxes, emptied. */
.tally[data-loading] .tally-item {
  align-items: center;
  padding-block: calc(var(--step) * 5.5);
}

.tally[data-loading] dt,
.tally[data-loading] dd {
  overflow: hidden;
  color: transparent;
  background: var(--panel2);
  border-radius: var(--radius-control);
}

.tally[data-loading] dt {
  width: 90px;
  height: 10px;
}

.tally[data-loading] dd {
  width: 140px;
  height: 22px;
}

.tally-foot {
  display: flex;
  align-items: center;
  gap: calc(var(--step) * 2);
  margin: 0;
  padding: calc(var(--step) * 3) calc(var(--step) * 4.5);
  background: var(--panel2);
  border-top: 1px solid var(--line);
  color: var(--ink2);
  font-size: 12px;
}

/* Showcase ---------------------------------------------------------------- */

.showcase {
  padding-bottom: calc(var(--step) * 18);
}

.showcase-figure {
  margin: 0;
}

.showcase-frame {
  background: var(--screen);
  border: 1px solid var(--line);
  border-radius: var(--radius-sheet);
  overflow: hidden;
}

.showcase-video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--screen);
}

.showcase-caption {
  margin: calc(var(--step) * 2.5) 0 0;
  color: var(--ink2);
  font-size: 13px;
}

.showcase-description {
  max-width: 75ch;
  margin: calc(var(--step) * 1.5) 0 0;
  color: var(--ink3);
  font-size: 13px;
  text-wrap: pretty;
}

.support-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(var(--step) * 3);
  margin: calc(var(--step) * 7) 0 0;
}

.support-label {
  margin-right: calc(var(--step));
  color: var(--ink2);
  font-size: 13px;
}

.support-key {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--step) * 2);
  min-height: 32px;
  padding: calc(var(--step) * 1.75) calc(var(--step) * 3.5);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: var(--panel2);
  border: 1px solid var(--line2);
  border-radius: var(--radius-control);
  text-decoration: none;
}

.support-key:hover {
  border-color: var(--focus);
}

/* How to use and the options ---------------------------------------------- */

.guide {
  padding-bottom: calc(var(--step) * 18);
}

.guide h2 {
  margin: 0 0 calc(var(--step) * 2.5);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.guide h3 {
  margin: calc(var(--step) * 8) 0 calc(var(--step) * 2);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.guide-note {
  max-width: 75ch;
  margin: 0 0 calc(var(--step) * 2.5);
  color: var(--ink2);
  font-size: 13px;
}

.sheet,
.rundown {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sheet);
  overflow: hidden;
}

.rundown {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rundown-row {
  display: grid;
  grid-template-columns: 14px 110px 1fr;
  gap: calc(var(--step) * 3.5);
  align-items: baseline;
  margin-top: -1px;
  padding: calc(var(--step) * 3.5) calc(var(--step) * 4);
  border-top: 1px solid var(--line);
}

.rundown-row .lamp {
  position: relative;
  top: 1px;
}

.rundown-row > span:last-child {
  max-width: 75ch;
  text-wrap: pretty;
}

.options {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.options th,
.options td {
  padding: calc(var(--step) * 3) calc(var(--step) * 4);
  border-top: 1px solid var(--line);
  vertical-align: top;
  font-weight: 400;
}

.options thead th {
  border-top: 0;
}

.options tbody th,
.options tbody td:nth-child(2),
.options tbody td:nth-child(3) {
  white-space: nowrap;
}

.options-none {
  color: var(--ink3);
}

/* Four columns need about 700 px before the sentence column starts wrapping every other
   word, so below that each option becomes a card and the header row goes away. */
@media (max-width: 700px) {
  .options,
  .options tbody,
  .options tr,
  .options th,
  .options td {
    display: block;
  }

  .options thead {
    display: none;
  }

  .options tbody tr {
    margin-top: -1px;
    padding: calc(var(--step) * 3.5) calc(var(--step) * 4);
    border-top: 1px solid var(--line);
  }

  .options th,
  .options td {
    margin: 0;
    padding: 0;
    border: 0;
    white-space: normal;
  }

  .options tbody th {
    font-weight: 600;
  }

  .options td[data-label]::before {
    content: attr(data-label) " ";
    color: var(--ink3);
  }

  .options tbody td:last-child {
    margin-top: calc(var(--step));
  }
}

/* Footer ------------------------------------------------------------------ */

.free {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: calc(var(--step) * 6);
  padding: calc(var(--step) * 6) 0 calc(var(--step) * 10);
  border-top: 1px solid var(--line);
}

.free-text {
  max-width: 75ch;
  margin-right: auto;
}

.free-line {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.free-note {
  margin: calc(var(--step) * 1.5) 0 0;
  color: var(--ink3);
  font-size: 12px;
}

.free-support {
  margin: 0;
  color: var(--ink2);
  font-size: 13px;
}

.donate {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--step) * 1.5);
  color: var(--ink);
  font-size: 13px;
  text-decoration: underline;
}

/* Narrow ------------------------------------------------------------------ */

@media (max-width: 900px) {
  .page {
    padding: 0 calc(var(--step) * 5);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: calc(var(--step) * 8);
    padding: calc(var(--step) * 8) 0 calc(var(--step) * 12);
  }

  .tally {
    margin-top: 0;
  }

  h1 {
    font-size: 24px;
  }

  .masthead {
    height: auto;
    flex-wrap: wrap;
    gap: calc(var(--step) * 3) calc(var(--step) * 5);
    padding: calc(var(--step) * 4) 0;
  }

  .rundown-row {
    grid-template-columns: 14px 1fr;
    row-gap: calc(var(--step));
  }

  .rundown-row > span:last-child {
    grid-column: 2;
  }
}