@font-face {
  font-family: "Saira SC";
  src: url("fonts/saira-semi-condensed-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Saira SC";
  src: url("fonts/saira-semi-condensed-800.woff2") format("woff2");
  font-weight: 800;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Next";
  src: url("fonts/atkinson-hyperlegible-next-var.woff2") format("woff2");
  font-weight: 200 800;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrains-mono-var.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  /* the icon's plate: indigo body, the screen's near-black interior */
  --plate-hi: #4b2c8f;
  --plate: #2c1c63;
  --plate-lo: #1b1442;
  --well: #120d2a;
  --screen: #0a0718;

  /* keycaps */
  --cap-top: #2a2343;
  --cap-skirt: #17122c;
  --mod-top: #3b2a78;
  --mod-skirt: #221653;

  /* the icon's two accents and nothing else */
  --amber: #ffc27a;
  --coral: #ff6f86;
  --coral-hi: #ffd27a;

  --ink: #f2eefc;
  --ink-2: #c9c0e8;
  --ink-3: #a499cf;
  --rule: rgb(255 255 255 / 0.1);

  /* The Latin subsets carry no Hangul; Korean falls through to the system face. */
  --hangul: "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --display: "Saira SC", "Avenir Next Condensed", var(--hangul);
  --text: "Atkinson Next", "Avenir Next", var(--hangul);
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  --pitch: clamp(3.9rem, 3.3rem + 1.6vw, 4.7rem);
  --gap: clamp(1rem, 0.7rem + 1.2vw, 1.75rem);
  --section: clamp(5rem, 3.5rem + 6vw, 9rem);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-color: var(--mod-top) var(--plate-lo);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(
    180deg,
    var(--plate-hi) 0%,
    var(--plate) 18rem,
    var(--plate-lo) 52rem
  );
  background-color: var(--plate-lo);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--amber);
  color: var(--plate-lo);
}

a {
  color: var(--amber);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
}
a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.9em;
}
code {
  color: var(--ink);
  background: rgb(255 255 255 / 0.07);
  padding: 0.08em 0.36em;
  border-radius: 5px;
}

svg {
  width: 1em;
  height: 1em;
  flex: none;
}

.defs {
  position: absolute;
}

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

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--amber);
  color: var(--plate-lo);
  border-radius: 8px;
}
.skip:focus {
  top: 1rem;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.98;
  text-wrap: balance;
  margin: 0;
}
h2 {
  font-size: clamp(2.2rem, 1.6rem + 2.6vw, 3.9rem);
  margin-bottom: 1.1rem;
}
h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  margin-bottom: 1rem;
}

.section-lede,
.config-copy > p:first-of-type,
.persist-grid p {
  max-width: 62ch;
  color: var(--ink-2);
}

main > section {
  padding: var(--section) clamp(1.25rem, 5vw, 5rem) 0;
  max-width: 88rem;
  margin: 0 auto;
}

/* ---------- masthead ---------- */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 88rem;
  margin: 0 auto;
  padding: 1.25rem clamp(1.25rem, 5vw, 5rem);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font: 800 1.35rem/1 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.topnav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.8rem);
}
.topnav a {
  color: var(--ink-2);
  text-decoration: none;
  font: 600 0.92rem/1 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.topnav a.lang {
  padding-left: 1.1rem;
  border-left: 1px solid var(--rule);
}
.topnav a:hover {
  color: var(--ink);
}
.topnav .gh {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink);
}
.topnav .gh svg {
  width: 1.2rem;
  height: 1.2rem;
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(24rem, 1fr) minmax(0, 1.5fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: start;
  padding-top: clamp(2rem, 4vw, 4rem) !important;
}
.hero-copy {
  padding-top: clamp(0.5rem, 2.5vw, 2.5rem);
}
h1 {
  font-size: clamp(2.7rem, 1.5rem + 3.1vw, 4.6rem);
  margin-bottom: 1.2rem;
}
.lede {
  font-size: clamp(1.08rem, 1rem + 0.35vw, 1.25rem);
  color: var(--ink-2);
  max-width: 40ch;
  margin: 0 0 1.8rem;
}
.facts {
  margin: 1.1rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-3);
}

/* ---------- keycaps ---------- */

.cap,
.returnkey-face,
.k {
  --top: var(--cap-top);
  --skirt: var(--cap-skirt);
}
.cap.mod,
.k.mod {
  --top: var(--mod-top);
  --skirt: var(--mod-skirt);
}

.cap {
  position: relative;
  display: grid;
  align-content: space-between;
  width: var(--pitch);
  height: var(--pitch);
  padding: 0.42rem 0.5rem 0.4rem;
  border: 0;
  border-radius: 9px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.1), transparent 46%), var(--top);
  box-shadow:
    inset 0 -0.38rem 0 var(--skirt),
    inset 0 1px 0 rgb(255 255 255 / 0.14),
    0 0.3rem 0.5rem rgb(5 3 15 / 0.55),
    0 0.1rem 0.15rem rgb(5 3 15 / 0.6);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    transform 0.12s var(--ease),
    box-shadow 0.12s var(--ease),
    background-color 0.2s;
}
.cap .legend {
  display: inline-flex;
  align-items: center;
  gap: 0.14em;
  font: 800 1.12rem/1 var(--display);
  text-transform: uppercase;
}
.cap .legend svg {
  width: 0.82em;
  height: 0.82em;
  opacity: 0.8;
}
.cap .action {
  font: 600 0.7rem/1.05 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  padding-bottom: 0.32rem;
  overflow-wrap: anywhere;
}
.cap.accent {
  --top: #f0a85a;
  --skirt: #b56d2a;
  color: #2b1503;
}
.cap.accent .action {
  color: #4a2a0c;
}
.cap:hover {
  background-color: color-mix(in oklab, var(--top) 88%, white);
}
.cap:active,
.cap.is-down {
  transform: translateY(0.22rem);
  box-shadow:
    inset 0 -0.16rem 0 var(--skirt),
    inset 0 1px 0 rgb(255 255 255 / 0.1),
    0 0.08rem 0.18rem rgb(5 3 15 / 0.6);
}
.cap.wide {
  width: auto;
  height: auto;
  padding: 0.85rem 1.2rem 1.15rem;
  margin-top: 0.6rem;
}
.cap.wide .legend {
  font-size: 1rem;
  letter-spacing: 0.05em;
}

/* the download key: a wide Return key in the icon's amber */
.returnkey {
  display: inline-block;
  text-decoration: none;
  border-radius: 12px;
}
.returnkey-face {
  --top: #ffc27a;
  --skirt: #c47a2c;
  display: inline-flex;
  align-items: center;
  gap: 1.4rem;
  padding: 1rem 1.3rem 1.45rem 1.4rem;
  min-width: min(100%, 21rem);
  justify-content: space-between;
  border-radius: 12px;
  color: #2b1503;
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.32), transparent 50%),
    var(--top);
  box-shadow:
    inset 0 -0.5rem 0 var(--skirt),
    inset 0 1px 0 rgb(255 255 255 / 0.5),
    0 0.45rem 0.9rem rgb(20 6 2 / 0.45),
    0 0.12rem 0.2rem rgb(20 6 2 / 0.5);
  transition:
    transform 0.12s var(--ease),
    box-shadow 0.12s var(--ease);
}
.returnkey-label {
  font: 800 1.3rem/1 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.returnkey-glyph {
  width: 1.6rem;
  height: 1.6rem;
}
.returnkey:hover .returnkey-face {
  background-color: #ffcf93;
}
.returnkey:active .returnkey-face {
  transform: translateY(0.3rem);
  box-shadow:
    inset 0 -0.2rem 0 var(--skirt),
    inset 0 1px 0 rgb(255 255 255 / 0.45),
    0 0.1rem 0.25rem rgb(20 6 2 / 0.5);
}
.returnkey.small .returnkey-face {
  min-width: 0;
}
.returnkey.small .returnkey-label {
  font-size: 1.1rem;
}

/* inline keycaps in prose and tables */
.k {
  display: inline-flex;
  align-items: center;
  gap: 0.1em;
  min-width: 1.9em;
  justify-content: center;
  padding: 0.12em 0.42em 0.26em;
  margin: 0 0.06em;
  border-radius: 6px;
  font: 800 0.86em/1.2 var(--display);
  text-transform: uppercase;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.1), transparent 55%), var(--top);
  box-shadow:
    inset 0 -0.16em 0 var(--skirt),
    0 0.12em 0.22em rgb(5 3 15 / 0.5);
  vertical-align: 0.06em;
}
.k svg {
  width: 0.8em;
  height: 0.8em;
}

/* ---------- the window ---------- */

.stage {
  display: grid;
  gap: var(--gap);
  min-width: 0;
}

.window {
  --term-bg: #0d0a1e;
  --term-fg: #e9e4fb;
  --term-dim: #8f86b3;
  --term-1: #ff6f86;
  --term-2: #8fe3b0;
  --term-3: #ffc27a;
  --term-4: #9db4ff;
  --chrome: #171230;
  --chrome-2: #1f1940;
  --chrome-ink: #d9d2f5;
  --chrome-ink-2: #8e85b5;
  --chrome-rule: rgb(255 255 255 / 0.07);

  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  background: var(--chrome);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.09),
    0 1.6rem 3.2rem rgb(6 3 20 / 0.6),
    0 0.4rem 0.9rem rgb(6 3 20 / 0.45);
  transition:
    opacity 0.35s var(--ease),
    filter 0.35s var(--ease);
}
.window.is-restarting {
  opacity: 0;
  filter: blur(6px);
}

.titlebar {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  height: 2.6rem;
  padding: 0 0.9rem;
  background: var(--chrome-2);
  border-bottom: 1px solid var(--chrome-rule);
  color: var(--chrome-ink-2);
}
.lights {
  display: inline-flex;
  gap: 0.45rem;
}
.lights i {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: #ff5f57;
}
.lights i:nth-child(2) {
  background: #febc2e;
}
.lights i:nth-child(3) {
  background: #28c840;
}
.tb-btn {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.7rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--chrome-ink-2);
  cursor: pointer;
}
.tb-btn:hover,
.tb-btn[aria-pressed="true"] {
  color: var(--chrome-ink);
  background: rgb(255 255 255 / 0.07);
}
.tb-btn svg {
  width: 1.15rem;
  height: 1.15rem;
}
.tb-title {
  margin-left: auto;
  margin-right: auto;
  transform: translateX(-2.2rem);
  font: 600 0.82rem/1 var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.body {
  display: grid;
  grid-template-columns: 13.5rem minmax(0, 1fr);
  height: clamp(19rem, 15rem + 10vw, 25rem);
  transition: grid-template-columns 0.4s var(--ease);
}
.window.no-sidebar .body {
  grid-template-columns: 0 minmax(0, 1fr);
}

.sidebar {
  overflow: hidden auto;
  padding: 0.7rem 0.55rem;
  background: var(--chrome);
  border-right: 1px solid var(--chrome-rule);
  scrollbar-width: thin;
}
.window.no-sidebar .sidebar {
  padding: 0;
  border: 0;
}
.ws {
  margin-bottom: 0.35rem;
}
.ws-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.38rem 0.5rem;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--chrome-ink);
  font: 600 0.84rem/1.2 var(--text);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
}
.ws-head:hover {
  background: rgb(255 255 255 / 0.05);
}
.ws-dot {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 3px;
  background: var(--dot);
  flex: none;
}
.ws-num {
  margin-left: auto;
  font: 600 0.7rem/1 var(--display);
  color: var(--chrome-ink-2);
}
.ws.is-active > .ws-head {
  background: rgb(255 194 122 / 0.14);
  color: #fff;
}
.ws.is-active .ws-num {
  color: var(--amber);
}
.ws-tabs {
  list-style: none;
  margin: 0.15rem 0 0.25rem;
  padding: 0 0 0 1.05rem;
}
.ws-tab {
  display: block;
  width: 100%;
  padding: 0.24rem 0.5rem;
  border: 0;
  border-left: 1px solid var(--chrome-rule);
  background: transparent;
  color: var(--chrome-ink-2);
  font: 400 0.8rem/1.3 var(--text);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ws-tab:hover {
  color: var(--chrome-ink);
}
.ws-tab[aria-current="true"] {
  color: var(--chrome-ink);
  border-left-color: var(--amber);
}
.ws.is-new {
  animation: grow 0.5s var(--ease);
}
@keyframes grow {
  from {
    opacity: 0;
    transform: translateX(-0.6rem);
  }
}

.content {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-width: 0;
  background: var(--term-bg);
  transition: background-color 0.4s var(--ease);
}
.tabstrip {
  display: flex;
  gap: 1px;
  overflow-x: auto;
  background: var(--chrome);
  border-bottom: 1px solid var(--chrome-rule);
  scrollbar-width: none;
}
.tab {
  flex: 0 1 11rem;
  min-width: 6rem;
  padding: 0.5rem 0.9rem;
  border: 0;
  background: var(--chrome-2);
  color: var(--chrome-ink-2);
  font: 600 0.78rem/1.2 var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  text-align: left;
}
.tab[aria-selected="true"] {
  background: var(--term-bg);
  color: var(--term-fg);
  box-shadow: inset 0 2px 0 var(--amber);
}

.panes {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--chrome-rule);
  min-height: 0;
}
.pane {
  min-width: 0;
  overflow: hidden;
  padding: 0.75rem 0.9rem;
  background: var(--term-bg);
  color: var(--term-fg);
  font: 400 clamp(0.68rem, 0.6rem + 0.25vw, 0.8rem) / 1.55 var(--mono);
  cursor: text;
  opacity: 0.62;
  transition:
    opacity 0.3s var(--ease),
    background-color 0.4s var(--ease),
    color 0.4s var(--ease);
}
.pane.is-focused {
  opacity: 1;
}
.pane.is-new {
  animation: paneIn 0.45s var(--ease);
}
@keyframes paneIn {
  from {
    clip-path: inset(0 0 0 100%);
  }
}
.pane p {
  margin: 0;
  white-space: pre;
  overflow: hidden;
  text-overflow: ellipsis;
}
.t-dim {
  color: var(--term-dim);
}
.t-1 {
  color: var(--term-1);
}
.t-2 {
  color: var(--term-2);
}
.t-3 {
  color: var(--term-3);
}
.t-4 {
  color: var(--term-4);
}
.cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.1em;
  vertical-align: -0.2em;
  background: var(--term-1);
}
.pane:not(.is-focused) .cursor {
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--term-dim);
}
@media (prefers-reduced-motion: no-preference) {
  .pane.is-focused .cursor {
    animation: blink 1.1s steps(1) infinite;
  }
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

.nojs {
  margin: 0;
  padding: 1rem;
  color: var(--chrome-ink-2);
  font-size: 0.9rem;
}

/* ---------- keycap plate ---------- */

.plate {
  padding: 1rem 1.1rem 1.15rem;
  border-radius: 16px;
  /* the switch plate under the keys: a well with the 1u pitch etched into it */
  background:
    linear-gradient(90deg, rgb(255 255 255 / 0.035) 1px, transparent 1px) 0 0 /
      calc(var(--pitch) + 0.55rem) 100%,
    var(--well);
  box-shadow:
    inset 0 0.25rem 0.7rem rgb(0 0 0 / 0.5),
    inset 0 -1px 0 rgb(255 255 255 / 0.06);
}
.plate-title {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
  color: var(--ink-3);
}
.plate-title kbd {
  font-family: var(--text);
  color: var(--ink-2);
}
.capsrow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

/* ---------- three levels ---------- */

.legendsheet {
  list-style: none;
  padding: 0;
  margin: 3rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
}
.legendsheet li {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 0.8rem;
  padding: 1.8rem clamp(1rem, 2.5vw, 2.4rem) 0 0;
}
.legendsheet li + li {
  padding-left: clamp(1rem, 2.5vw, 2.4rem);
  border-left: 1px solid var(--rule);
}
.biglegend {
  font: 800 clamp(2.4rem, 1.5rem + 3.2vw, 4.6rem) / 0.9 var(--display);
  text-transform: uppercase;
  color: var(--ink);
}
.legendsheet li:nth-child(1) .biglegend {
  color: var(--amber);
}
.legendsheet li:nth-child(3) .biglegend {
  color: var(--coral);
}
.legendsheet p {
  margin: 0;
  color: var(--ink-2);
  max-width: 36ch;
}
.aside {
  margin: 3rem 0 0;
  max-width: 62ch;
  color: var(--ink-3);
}

/* ---------- config ---------- */

.config {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.swatch-help {
  margin: 2rem 0 0.8rem;
  font-size: 0.92rem;
  color: var(--ink-3);
}
.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.swatch {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.85rem 0.5rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgb(255 255 255 / 0.03);
  color: var(--ink-2);
  font: 600 0.86rem/1 var(--text);
  cursor: pointer;
}
.swatch:hover {
  color: var(--ink);
  border-color: rgb(255 255 255 / 0.22);
}
.swatch[aria-checked="true"] {
  color: var(--ink);
  border-color: var(--amber);
  background: rgb(255 194 122 / 0.1);
}
.swatch-chip {
  display: inline-grid;
  grid-template-columns: repeat(3, 0.5rem);
  height: 1.35rem;
  padding: 0.22rem;
  gap: 2px;
  border-radius: 999px;
  background: var(--sw-bg);
}
.swatch-chip i {
  border-radius: 999px;
}

.configfile {
  margin: 0;
  padding: clamp(1.2rem, 2.5vw, 2rem);
  border-radius: 14px;
  background: var(--screen);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.07),
    0 1rem 2rem rgb(6 3 20 / 0.45);
  color: var(--ink-2);
  font-size: clamp(0.8rem, 0.74rem + 0.25vw, 0.95rem);
  line-height: 1.75;
  overflow-x: auto;
}
.cf-path {
  color: var(--ink-3);
}
.cf-key {
  color: var(--ink);
}
.cf-val {
  color: var(--amber);
}

/* ---------- persistence ---------- */

.persist-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.persist-grid p {
  margin: 0 0 1.1rem;
}
.ledger {
  margin: 0;
  border-top: 1px solid var(--rule);
}
.ledger > div {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}
.ledger dt {
  font: 800 0.95rem/1.5 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--amber);
}
.ledger div:nth-child(2) dt {
  color: var(--coral);
}
.ledger div:nth-child(3) dt {
  color: var(--ink-3);
}
.ledger dd {
  margin: 0;
  color: var(--ink-2);
}

/* ---------- keymap ---------- */

.keymap-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: 2.6rem;
}
.kmap {
  margin: 0;
}
.kmap > div {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  padding: 0.62rem 0;
  border-bottom: 1px solid var(--rule);
}
.kmap dt {
  white-space: nowrap;
}
.kmap dd {
  margin: 0;
  color: var(--ink-2);
}
.kmap-note {
  margin: 1.3rem 0 0;
  color: var(--ink-3);
  max-width: 40ch;
}

/* ---------- install ---------- */

.install {
  padding-bottom: var(--section) !important;
}
.steps {
  margin: 2rem 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 1.1rem;
  max-width: 62ch;
}
.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
  color: var(--ink-2);
}
.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 7px;
  font: 800 1rem/1 var(--display);
  color: var(--ink);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.1), transparent 55%),
    var(--cap-top);
  box-shadow:
    inset 0 -0.2rem 0 var(--cap-skirt),
    0 0.15rem 0.3rem rgb(5 3 15 / 0.5);
  align-self: start;
}
.upgrade {
  max-width: 62ch;
  margin: 0 0 2.2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
}
.upgrade strong {
  color: var(--ink-2);
}

/* ---------- footer ---------- */

.foot {
  max-width: 88rem;
  margin: 0 auto;
  padding: 2rem clamp(1.25rem, 5vw, 5rem) 3rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: 0.9rem;
}
.foot p {
  margin: 0 0 0.5rem;
  max-width: 80ch;
}
.foot a {
  color: var(--ink-2);
}

/* ---------- responsive ---------- */

/* Korean: break between words, not inside them, and give Hangul the line
   height and tracking it needs next to the condensed Latin display face. */
:lang(ko) {
  word-break: keep-all;
  overflow-wrap: anywhere;
}
:lang(ko) :is(h1, h2, h3) {
  line-height: 1.14;
  letter-spacing: -0.01em;
}
:lang(ko) h1 {
  font-size: clamp(2.5rem, 1.5rem + 2.7vw, 4.1rem);
}
:lang(ko) .biglegend {
  font-size: clamp(2rem, 1.3rem + 2.4vw, 3.6rem);
  line-height: 1.05;
}
:lang(ko) :is(.topnav a, .cap .action, .ledger dt, .returnkey-label) {
  letter-spacing: 0;
}
/* Uppercasing only hits the Latin words in Korean copy ("MACOS용"); keep
   them as written. Paragraphs avoid a lone word on the last line. */
:lang(ko) :is(h1, h2, h3, .returnkey-label, .biglegend) {
  text-transform: none;
}
:lang(ko) p {
  text-wrap: pretty;
}

@media (max-width: 64rem) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-copy {
    padding-top: 0;
  }
  .lede {
    max-width: 52ch;
  }
  .config,
  .persist-grid,
  .keymap-cols {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 44rem) {
  .topnav a:not(.gh, .lang) {
    display: none;
  }
  .legendsheet {
    grid-template-columns: minmax(0, 1fr);
  }
  .legendsheet li,
  .legendsheet li + li {
    padding: 1.6rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--rule);
  }
  .body {
    grid-template-columns: 9.5rem minmax(0, 1fr);
    height: 20rem;
  }
  .ws-tabs {
    padding-left: 0.7rem;
  }
  .tb-title {
    transform: none;
  }
  .panes .pane:nth-child(n + 3) {
    display: none;
  }
  .kmap > div {
    grid-template-columns: 9rem minmax(0, 1fr);
  }
  .ledger > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.2rem;
  }
  .returnkey,
  .returnkey-face {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}