:root {
  --bg: #ffffff;
  --bg-raised: #f1f2ef;
  --line: #d5d6d1;
  --line-strong: #b3b5af;
  --text: #1c211f;
  --dim: #5f6864;
  --mute: #6a726e;
  --cyan: #0f7a6e;
  --cyan-dim: #d7efe9;
  --gold: #8a6414;
  --green: #1b7f45;
  --red: #c23d36;
  --warn: #9a6b12;
  --sans: "IBM Plex Sans", "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --measure: 62rem;
  --gutter: clamp(1rem, 3vw, 2rem);
}

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

html {
  background: var(--bg);
  color: var(--text);
  color-scheme: light;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
}

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 20;
  background: var(--cyan);
  color: #fff;
  padding: 0.4rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.skip:focus {
  top: 0.75rem;
}

.wrap {
  width: min(var(--measure), calc(100% - 2 * var(--gutter)));
  margin-inline: auto;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.wordmark {
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.wordmark:hover {
  color: var(--cyan);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  color: var(--dim);
}

.nav a {
  color: inherit;
  text-decoration: none;
}

.nav a:hover {
  color: var(--text);
}

.hero {
  padding: 2.25rem 0 2rem;
}

.kicker {
  margin: 0 0 0.75rem;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

h1,
h2,
h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
}

.lede {
  max-width: 38rem;
  margin: 0 0 1.35rem;
  color: var(--dim);
  font-size: 1.08rem;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: var(--text);
  background: var(--bg-raised);
  padding: 0.12em 0.34em;
  white-space: nowrap;
}

.install-row code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 0.95rem;
}

.install {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.6rem 1rem;
  margin-bottom: 1rem;
}

.install-tabs {
  display: flex;
  border: 1px solid var(--line);
  background: var(--bg-raised);
}

.install-tabs button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
}

.install-tabs button[aria-pressed="true"] {
  background: var(--cyan-dim);
  color: var(--cyan);
}

.install-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 1 1 22rem;
  max-width: 36rem;
  padding: 0.45rem 0.55rem 0.45rem 0.85rem;
  border: 1px solid var(--line-strong);
  background: var(--bg-raised);
  font-family: var(--mono);
}

.prompt {
  color: var(--cyan);
}

#install-cmd {
  flex: 1;
  min-width: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.copy {
  appearance: none;
  flex-shrink: 0;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
}

.copy:hover,
.copy[data-state="copied"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.glossary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.35rem;
  margin: 0 0 1.75rem;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.glossary strong {
  margin-right: 0.4rem;
  color: var(--text);
  font-weight: 600;
}

.term {
  --text: #e6eeea;
  --dim: #8a9791;
  --mute: #6b7671;
  --cyan: #3ee0c5;
  --gold: #e4c35a;
  --green: #7dce8a;
  --line: #2c3834;
  --line-strong: #44554e;
  overflow: hidden;
  border: 1px solid #1a211e;
  border-radius: 10px;
  background: #121614;
  color: var(--text);
  box-shadow:
    0 1px 1px rgb(28 33 31 / 0.06),
    0 10px 28px rgb(28 33 31 / 0.12),
    0 28px 56px rgb(28 33 31 / 0.08);
}

.term-chrome {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.5rem;
  height: 2.35rem;
  padding: 0 0.85rem;
  background: #1a211e;
  border-bottom: 1px solid #0e1210;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--mute);
}

.term-lights {
  display: flex;
  gap: 8px;
}

.term-lights span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 0 0.5px rgb(0 0 0 / 0.25);
}

.term-lights span:nth-child(1) {
  background: #ff5f57;
}

.term-lights span:nth-child(2) {
  background: #febc2e;
}

.term-lights span:nth-child(3) {
  background: #28c840;
}

.term-title {
  min-width: 0;
  overflow: hidden;
  color: #b7c2bd;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.term-size {
  justify-self: end;
  color: var(--mute);
}

.tui {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.45;
  font-variant-ligatures: none;
}

.tui-bar,
.tui-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.8rem;
}

.tui-hint {
  margin: 0.7rem 0 0;
  padding: 0;
  overflow-wrap: anywhere;
  white-space: normal;
  color: var(--mute);
}

.tui-bar {
  padding-bottom: 0.2rem;
}

.tui-brand {
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.tui-tabs {
  display: flex;
  flex-wrap: wrap;
  min-width: 0;
  gap: 0.2rem 1rem;
}

.tui-tabs button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 0;
  cursor: pointer;
}

.tui-tabs button[aria-selected="true"] {
  color: var(--cyan);
  font-weight: 600;
}

.tui-quit {
  color: var(--mute);
}

.tui-frame {
  min-height: 17.5rem;
  margin: 0.15rem 0.65rem 0.2rem;
  padding: 0.7rem 0.8rem 0.65rem;
  border: 1px solid var(--line);
}

.screen[hidden] {
  display: none;
}

.screen-title {
  margin: 0 0 0.7rem;
  color: var(--text);
  font-weight: 600;
}

.dim {
  color: var(--dim);
}

.cyan {
  color: var(--cyan);
}

.green {
  color: var(--green);
}

.red {
  color: var(--red);
}

.warn {
  color: var(--warn);
}

.panes {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: 0.7rem;
}

.pane {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.55rem 0.7rem 0.65rem;
}

.pane.active {
  border-color: var(--cyan);
}

.pane-head,
.row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.pane-head {
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.pane-head .screen-title {
  margin: 0;
}

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

.list li,
.row {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cursor {
  color: var(--cyan);
}

.skill-cursor {
  color: var(--gold);
}

.keys {
  font-family: var(--sans);
}

.tui-status {
  padding-top: 0.35rem;
  color: var(--green);
}

.dot::before {
  content: "●";
  margin-right: 0.4rem;
}

.section {
  padding: 2.4rem 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 0.85rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.section-lead {
  margin: 0 0 1rem;
  max-width: 40rem;
  color: var(--dim);
}

.plan {
  border: 1px solid var(--cyan);
  border-radius: 6px;
  padding: 0.85rem 1rem 1rem;
  background: var(--bg-raised);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.plan h3 {
  font-size: 0.95rem;
}

.plan ol {
  margin: 0.6rem 0 0.8rem;
  padding: 0;
  list-style: none;
}

.plan li {
  white-space: pre-wrap;
}

.plan li + li {
  margin-top: 0.25rem;
}

.plan .hint {
  color: var(--mute);
}

.commands {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.commands th,
.commands td {
  text-align: left;
  vertical-align: top;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--line);
}

.commands th {
  color: var(--mute);
  font-weight: 500;
}

.commands td:first-child {
  white-space: nowrap;
  color: var(--cyan);
  padding-right: 1.25rem;
}

.commands td:last-child {
  color: var(--dim);
}

.commands tr:last-child th,
.commands tr:last-child td {
  border-bottom: 0;
}

.note {
  margin: 1rem 0 0;
  color: var(--mute);
  font-size: 0.92rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 1.25rem 1.6rem;
  color: var(--mute);
}

.site-footer a {
  color: var(--dim);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text);
}

@media (max-width: 800px) {
  .panes {
    grid-template-columns: 1fr;
  }

  .term {
    border-radius: 8px;
  }

  .tui {
    font-size: 0.75rem;
  }

  .term-chrome {
    grid-template-columns: auto 1fr;
  }

  .term-title {
    justify-self: start;
  }

  .term-size {
    display: none;
  }

  .list li,
  .row {
    white-space: normal;
    overflow: visible;
  }

  .row {
    flex-wrap: wrap;
    gap: 0.15rem 0.8rem;
  }

  .tui-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .tui-frame {
    min-height: 14rem;
    margin-inline: 0.45rem;
  }

  .tui-quit {
    display: none;
  }

  .commands td:first-child {
    display: block;
    padding-bottom: 0.15rem;
    white-space: normal;
  }

  .commands td:last-child {
    display: block;
    padding-top: 0;
    padding-bottom: 0.85rem;
  }

  .commands th {
    display: none;
  }
}

@media (max-width: 560px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .install-row {
    min-width: 0;
    width: 100%;
    max-width: none;
  }
}

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