index.css

:root {
  color-scheme: dark;
  --bg: #000;
  --panel: #08090b;
  --panel-raised: #0b0d10;
  --line: #22272e;
  --line-soft: #181c21;
  --text: #e8eaed;
  --muted: #9aa1ab;
  --dim: #6b7280;
  --cyan: #00bcd4;
  --green: #4ade80;
  --pink: #ff5cad;
  --mono: "DejaVu Sans Mono", "Cascadia Mono", "SF Mono", Menlo, Consolas, ui-monospace, monospace;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, #0a1b1e 0%, rgba(0, 0, 0, 0) 60%);
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: #d7dde5;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 5px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 10;
  padding: 10px 14px;
  background: var(--cyan);
  color: #001014;
  font-weight: 700;
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  width: min(1180px, 100% - 64px);
  margin: 0 auto;
  padding: 26px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

main {
  width: min(1180px, 100% - 64px);
  margin: 0 auto;
}

.hero {
  padding: 44px 0 36px;
  max-width: 960px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.release-link {
  color: var(--muted);
  text-transform: none;
  text-decoration: underline;
  text-decoration-color: #2f3a43;
  text-underline-offset: 3px;
}

.release-link:hover {
  color: var(--text);
  text-decoration-color: var(--cyan);
}

.eyebrow__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.12);
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 4.8vw, 3.75rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
  font-weight: 700;
  text-wrap: balance;
}

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

.nowrap {
  white-space: nowrap;
}

.lede {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11.5px;
}

.meta li {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #050607;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.85fr);
  gap: 40px;
  align-items: start;
}

/* Terminal */
.terminal {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-raised);
}

.terminal__dots {
  display: inline-flex;
  gap: 6px;
}

.terminal__dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #2b3139;
}

.terminal__title {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11.5px;
}

.terminal__body {
  padding: 22px 24px 24px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.banner {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 0 0 22px;
  padding: 0;
  overflow-x: auto;
  color: #f2f4f7;
  font-family: var(--mono);
  font-size: clamp(8px, 1.6vw, 13px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.term-line {
  margin: 0;
  color: #c7ccd3;
}

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

.term-punct {
  color: var(--muted);
}

.term-path {
  color: var(--pink);
}

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

.term-out {
  margin: 0;
  color: #c7ccd3;
}

.term-out.accent {
  color: var(--cyan);
  margin-top: 10px;
}

.term-out.muted {
  color: var(--muted);
}

.command {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  margin: 14px 0 0;
  border: 1px solid #2b3138;
  border-radius: 8px;
  background: #000;
  overflow: hidden;
  transition: border-color 160ms ease;
}

.command:hover {
  border-color: #3a424c;
}

.command__code {
  display: block;
  min-width: 0;
  padding: 13px 15px;
  color: #eef1f4;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  user-select: all;
}

.copy {
  min-width: 82px;
  min-height: 46px;
  padding: 0 16px;
  border: 0;
  border-left: 1px solid #2b3138;
  background: #0d1013;
  color: var(--muted);
  font: 600 12px/1 var(--sans);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease;
}

.copy:hover {
  background: #151a20;
  color: var(--text);
}

.copy[data-state="success"] {
  background: var(--green);
  color: #04130a;
}

.copy[data-state="error"] {
  background: #7f1d1d;
  color: #fff;
}

.term-or {
  margin: 10px 0;
  color: var(--muted);
  font-size: 12px;
}

.term-note {
  margin: 14px 0 0;
  color: #fbbf24;
  font-size: 12.5px;
}

.term-line--last {
  margin-top: 22px;
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 2px;
  background: var(--text);
  vertical-align: -0.16em;
  animation: blink 1.1s steps(1, end) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* Sidebar */
.sidebar {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.panel {
  padding: 20px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--panel);
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.panel ul {
  margin: 0;
  padding: 0 0 0 18px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.panel li + li {
  margin-top: 7px;
}

.panel p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.panel a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.panel--accent {
  border-color: rgba(0, 188, 212, 0.28);
  background: linear-gradient(180deg, rgba(0, 188, 212, 0.06), rgba(0, 188, 212, 0.015));
}

.panel--accent .button-link {
  margin-top: 14px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--cyan);
  border-radius: 7px;
  background: var(--cyan);
  color: #001014;
  font-size: 13px;
  font-weight: 700;
}

.button-link:hover {
  background: #2dd4e8;
  text-decoration: none;
}

.button-link--ghost {
  background: transparent;
  color: var(--cyan);
}

.button-link--ghost:hover {
  background: rgba(0, 188, 212, 0.1);
}

.text-link {
  font-size: 13px;
}

/* TUI preview */
.tui {
  margin: 72px 0 0;
}

.tui__head {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 24px;
}

.tui__head .eyebrow {
  margin-bottom: 14px;
}

.tui__head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.tui__head p {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.tui__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tui__chips li {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #050607;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.tui-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.tui-card {
  min-width: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.tui-card--wide {
  grid-column: span 2;
}

.tui-card__body {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  align-items: stretch;
}

.tui-aside {
  padding: 20px;
  border-left: 1px solid var(--line-soft);
  background: #050607;
}

.tui-aside__kicker {
  margin: 0 0 8px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tui-aside h3 {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.tui-aside p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.65;
}

.tui-aside ul {
  margin: 0 0 18px;
  padding: 0 0 0 17px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.tui-aside li + li {
  margin-top: 8px;
}

.tui-aside strong {
  color: var(--text);
}

.tui-aside__credit {
  margin: 18px 0 0 !important;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--dim) !important;
  font-size: 11.5px !important;
}

.tui-screen-wrap {
  overflow-x: auto;
  background: #030405;
}

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

.tui-screen {
  display: block;
  width: max-content;
  min-width: 100%;
  margin: 0;
  padding: 16px 18px 18px;
  color: #c7ccd3;
  font-family: "DejaVu Sans Mono", "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  font-variant-ligatures: none;
  font-synthesis: none;
  tab-size: 2;
}

.tui-border {
  color: #34404b;
}

.tui-brand {
  color: var(--cyan);
  font-weight: 700;
}

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

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

.tui-heading {
  color: var(--text);
  font-weight: 700;
}

.tui-selected {
  color: var(--cyan);
  font-weight: 700;
}

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

.tui-copy {
  color: #c7ccd3;
}

.tui-card figcaption {
  padding: 13px 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.tui-card__label {
  display: block;
  margin-bottom: 3px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Credits */
.credits {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: start;
  margin: 72px 0 0;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    radial-gradient(ellipse 70% 90% at 100% 0%, rgba(0, 188, 212, 0.05), transparent 60%),
    var(--panel);
}

.credits__intro h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 2.3vw, 1.9rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.credits__intro p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.credits__intro strong {
  color: var(--text);
}

.credits__intro a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.credits__note {
  margin-top: 16px !important;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--dim) !important;
  font-size: 12.5px !important;
}

.credits__cards {
  display: grid;
  gap: 10px;
}

.credit-card {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 9px;
  background: #050607;
}

.credit-card h3 {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.01em;
}

.credit-card p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.credit-card a {
  font-size: 12.5px;
}

/* Source note */
.source-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 56px 0 0;
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.source-note h2 {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.source-note p {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 13.5px;
}

.source-note__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  width: min(1180px, 100% - 64px);
  margin: 64px auto 0;
  padding: 26px 0 40px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 12.5px;
}

.site-footer p {
  margin: 0;
}

.site-footer__meta {
  display: grid;
  gap: 6px;
}

.site-footer__credit {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 11.5px;
}

.site-footer__credit a {
  color: var(--cyan);
}

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

.site-footer nav {
  display: flex;
  gap: 18px;
}

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

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

@media (max-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .hero {
    padding: 36px 0 28px;
  }

  .sidebar {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }

  .tui__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .tui__chips {
    justify-content: flex-start;
  }

  .tui-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .tui-card--wide {
    grid-column: auto;
  }

  .tui-card__body {
    grid-template-columns: minmax(0, 1fr);
  }

  .tui-aside {
    border-top: 1px solid var(--line-soft);
    border-left: 0;
  }

  .tui-screen {
    font-size: 10px;
  }

  .tui {
    margin-top: 56px;
  }

  .credits {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    margin-top: 56px;
  }
}

@media (max-width: 620px) {
  .banner {
    display: none;
  }

  .site-header,
  main,
  .site-footer {
    width: min(100% - 36px, 1180px);
  }

  .site-header {
    padding: 18px 0;
    gap: 14px;
  }

  .site-nav {
    gap: 14px;
    font-size: 13px;
  }

  .hero {
    padding: 24px 0 20px;
  }

  h1 {
    margin-bottom: 14px;
    font-size: clamp(2rem, 8.8vw, 2.6rem);
  }

  .lede {
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .meta {
    margin-top: 16px;
  }

  .meta li {
    padding: 4px 9px;
    font-size: 10.5px;
  }

  .terminal__body {
    padding: 18px 16px 20px;
    font-size: 13px;
  }

  .command {
    grid-template-columns: minmax(0, 1fr);
  }

  .copy {
    min-height: 44px;
    border-left: 0;
    border-top: 1px solid #2b3138;
  }

  .source-note {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  .tui-screen {
    font-size: 7.5px;
    padding: 10px;
  }

  .credits {
    padding: 20px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 44px;
  }
}

@media (max-width: 380px) {
  .terminal__body {
    padding: 16px 12px 18px;
    font-size: 12.5px;
  }

  .command__code {
    padding: 12px;
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cursor {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}