:root {
  --font-prose: "Source Serif 4", Georgia, serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;

  --page: #edeae2;
  --paper: #f7f6f2;
  --panel: #ffffff;
  --ink: #211f1c;
  --muted: #6f6a60;
  --rule: #ded9ce;
  --accent: #4b6156;
  --accent-strong: #3c4f45;
  --accent-soft: #dce4dc;
  --on-accent: #f7f6f2;
  --code-bg: #efede6;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --page: #141412;
  --paper: #1b1a18;
  --panel: #232220;
  --ink: #e8e4da;
  --muted: #a39d91;
  --rule: #332f2b;
  --accent: #9cb8a8;
  --accent-strong: #b6cbbf;
  --accent-soft: #2b3a32;
  --on-accent: #1b1a18;
  --code-bg: #26241f;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-prose);
  font-size: 18px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-strong);
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.clipboard-fallback {
  position: fixed;
  top: 0;
  left: -9999px;
  opacity: 0;
}

.site-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  max-width: 1440px;
  min-height: 100vh;
  margin: 0 auto;
  background: var(--paper);
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}

/* ---------- Rail ---------- */

.rail {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 22px 18px 18px;
  background: var(--panel);
  border-right: 1px solid var(--rule);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  text-decoration: none;
}

.brand img {
  width: 28px;
  height: 28px;
  border: 1px solid var(--rule);
  border-radius: 4px;
}

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

.rail-note {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
  padding: 0 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.01em;
}

.rail-version {
  white-space: nowrap;
}

.file-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 28px;
}

.file-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  text-decoration: none;
  transition:
    background-color 140ms ease,
    color 140ms ease;
}

.file-link:hover {
  background: var(--code-bg);
  color: var(--ink);
}

.file-link.is-active {
  color: var(--ink);
}

.file-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.45;
}

.file-link.is-active .file-dot {
  border-color: var(--accent);
  background: var(--accent);
  opacity: 1;
}

.rail-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.theme-toggle,
.rail-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.3;
  text-decoration: none;
}

.theme-toggle {
  background: none;
  border: 0;
  cursor: pointer;
}

.theme-toggle:hover,
.rail-link:hover {
  color: var(--accent);
}

.theme-icon {
  color: var(--accent);
  font-size: 13px;
  line-height: 1;
}

/* ---------- Document column ---------- */

.main {
  min-width: 0;
}

.document-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(24px, 5vw, 64px);
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.document-tab {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  text-transform: none;
}

.document-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
}

.document-meta {
  white-space: nowrap;
}

.section {
  padding: clamp(64px, 9vw, 120px) clamp(24px, 6vw, 88px);
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 56px;
}

.hero {
  padding-top: clamp(48px, 7vw, 96px);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 16ch;
  margin-bottom: 28px;
  font-family: var(--font-prose);
  font-size: clamp(3rem, 5.6vw, 5.6rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.96;
  text-wrap: balance;
}

h1 span {
  display: block;
  color: var(--accent);
}

.lede {
  max-width: 60ch;
  margin-bottom: 0;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.58;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    border-color 150ms ease,
    color 150ms ease;
}

.button span {
  font-size: 14px;
  line-height: 1;
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.button-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--on-accent);
}

.button-quiet {
  background: transparent;
  color: var(--ink);
}

.button-quiet:hover {
  background: var(--code-bg);
  color: var(--ink);
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.025em;
}

.app-shot {
  margin: clamp(42px, 6vw, 76px) 0 0;
}

.app-shot-frame {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.app-shot-frame img {
  width: 100%;
}

.hero-shot-dark,
.theme-caption-dark {
  display: none;
}

html[data-theme="dark"] .hero-shot-light,
html[data-theme="dark"] .theme-caption-light {
  display: none;
}

html[data-theme="dark"] .hero-shot-dark {
  display: block;
}

html[data-theme="dark"] .theme-caption-dark {
  display: inline;
}

figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
}

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

.section-head {
  max-width: 820px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.section-head h2 {
  margin-bottom: 18px;
  font-family: var(--font-prose);
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
}

.section-head > p:last-child {
  max-width: 58ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.section-head-split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  max-width: none;
}

.section-head-split > p {
  margin-bottom: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 64px;
  border-top: 1px solid var(--rule);
}

.feature {
  padding: 24px 0 28px;
  border-bottom: 1px solid var(--rule);
}

.feature h3 {
  margin-bottom: 9px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.feature p {
  max-width: 43ch;
  margin-bottom: 0;
  font-size: 1.03rem;
  line-height: 1.55;
}

.feature code {
  padding: 0.1em 0.28em;
  background: var(--code-bg);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.82em;
}

.shot-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}

.shot-pair figure {
  margin: 0;
}

.download-panel {
  padding: clamp(24px, 4vw, 40px);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.download-panel-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
}

.mono-label {
  margin-bottom: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.download-panel h3 {
  margin-bottom: 8px;
  font-family: var(--font-prose);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.download-panel h3 span {
  color: var(--accent);
}

.download-detail {
  margin-bottom: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.checksum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.checksum-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.09em;
}

.checksum code {
  min-width: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.copy-button {
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background-color 140ms ease,
    color 140ms ease;
}

.copy-button:hover {
  background: var(--code-bg);
  color: var(--ink);
}

.copy-button.is-copied {
  border-color: var(--accent);
  color: var(--accent);
}

.download-note {
  max-width: 72ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.download-note strong {
  color: var(--ink);
  font-weight: 600;
}

.download-note a {
  color: var(--accent);
}

.license-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.license-grid h2 {
  max-width: 10ch;
  margin-bottom: 0;
  font-family: var(--font-prose);
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
}

.license-copy p {
  max-width: 52ch;
  margin-bottom: 18px;
  font-size: 1.05rem;
  line-height: 1.65;
}

.license-copy p:last-child {
  margin-bottom: 0;
}

.license-copy a {
  color: var(--accent);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  padding: 28px clamp(24px, 6vw, 88px);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-mark {
  width: 16px;
  height: 16px;
  border: 1px solid var(--rule);
  border-radius: 3px;
}

.footer .brand-text {
  color: var(--ink);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  margin: 0;
}

.footer-profile {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  color: var(--muted);
  text-decoration: none;
}

.footer-profile svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.footer-profile:hover {
  color: var(--accent);
}

.breadcrumbs {
  margin: 0 0 36px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  line-height: 1.6;
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.page-head {
  max-width: 820px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.page-head h1 {
  max-width: 20ch;
  margin-bottom: 22px;
  font-size: clamp(2.6rem, 5vw, 4.8rem);
}

.page-intro {
  max-width: 64ch;
  margin-bottom: 0;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.page-body {
  max-width: 72ch;
}

.page-body p {
  margin-bottom: 1.25em;
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-body h2 {
  margin: 2.4em 0 0.6em;
  font-family: var(--font-prose);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  text-wrap: balance;
}

.page-body > h2:first-child {
  margin-top: 0;
}

.page-body h3 {
  margin: 1.8em 0 0.45em;
  font-family: var(--font-prose);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.25;
}

.page-body ul,
.page-body ol {
  margin: 0 0 1.4em;
  padding-left: 1.25em;
}

.page-body li {
  margin-bottom: 0.5em;
  font-size: 1.03rem;
  line-height: 1.65;
}

.page-body li:last-child {
  margin-bottom: 0;
}

.page-body a:not(.button) {
  color: var(--accent);
}

.page-body code {
  padding: 0.1em 0.28em;
  background: var(--code-bg);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.84em;
  overflow-wrap: anywhere;
}

.page-body pre {
  margin: 0 0 1.6em;
  padding: 18px 20px;
  overflow-x: auto;
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.page-body pre code {
  padding: 0;
  background: none;
  border: 0;
  font-size: 12px;
  line-height: 1.65;
  overflow-wrap: normal;
}

.page-body blockquote {
  margin: 0 0 1.6em;
  padding-left: 18px;
  border-left: 2px solid var(--rule);
  color: var(--muted);
}

.page-body blockquote p:last-child {
  margin-bottom: 0;
}

.table-wrap {
  margin: 0 0 1.8em;
  overflow-x: auto;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
  line-height: 1.5;
}

.comparison-table th,
.comparison-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.fact-list {
  margin: 0 0 1.8em;
}

.fact-list dt {
  margin-top: 14px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
}

.fact-list dd {
  margin: 3px 0 0;
}

.page-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  margin-top: 48px;
  padding: 24px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-cta p {
  margin: 0;
}

.page-checksum {
  margin: 20px 0;
  border-top: 1px solid var(--rule);
}

.page-checksum code {
  padding: 0;
  background: none;
  border-radius: 0;
  font-size: 10px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.related-pages {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

.related-pages h2 {
  margin: 0 0 12px;
  font-family: var(--font-prose);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.related-pages ul {
  margin: 0;
  padding-left: 1.25em;
}

.related-pages li {
  margin-bottom: 6px;
  font-size: 1rem;
  line-height: 1.6;
}

.faq {
  margin-top: 8px;
  border-top: 1px solid var(--rule);
}

.faq-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.faq-item p {
  max-width: 70ch;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.release-entry {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.release-entry h2 {
  margin-top: 0;
}

.release-meta {
  margin-bottom: 24px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
}

.release-entry h3 {
  margin-top: 1.6em;
}

@media (max-width: 860px) {
  .page-head h1 {
    max-width: 22ch;
  }
}

@media (max-width: 520px) {
  .page-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-body pre {
    padding: 14px 16px;
  }
}

@media (max-width: 1080px) {
  .site-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .feature-grid {
    gap: 0 40px;
  }
}

@media (max-width: 860px) {
  .site-shell {
    display: block;
    border: 0;
  }

  .rail {
    top: 0;
    z-index: 30;
    flex-direction: row;
    align-items: center;
    gap: 16px;
    height: auto;
    padding: 13px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .rail-note,
  .file-nav {
    display: none;
  }

  .rail-foot {
    gap: 16px;
    margin-top: 0;
    margin-left: auto;
    padding-top: 0;
    border-top: 0;
  }

  .document-bar {
    position: static;
    padding: 12px 20px;
  }

  .section {
    padding: 56px 20px;
    scroll-margin-top: 64px;
  }

  .hero {
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(2.8rem, 11vw, 4.5rem);
  }

  .section-head-split,
  .license-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-head-split > p {
    max-width: 58ch;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .shot-pair {
    grid-template-columns: 1fr;
  }

  .download-panel-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer {
    padding: 24px 20px;
  }
}

@media (max-width: 520px) {
  .brand img {
    width: 24px;
    height: 24px;
  }

  .brand span {
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .button {
    width: 100%;
  }

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

  .checksum-label {
    grid-column: 1 / -1;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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