:root {
  color-scheme: light;
  --base: #f8f8f7;
  --panel: #fff;
  --ink: #252523;
  --muted: #62625c;
  --line: #ddddd9;
  --soft: #efefed;
  --glass: rgba(248, 248, 247, 0.94);
}
html.dark {
  color-scheme: dark;
  --base: #141413;
  --panel: #1a1a19;
  --ink: #efefed;
  --muted: #b1b1aa;
  --line: #3d3d3a;
  --soft: #252523;
  --glass: rgba(20, 20, 19, 0.94);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
}
body {
  margin: 0;
  background: var(--base);
  color: var(--ink);
  font:
    16px/1.7 Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    'Noto Sans JP',
    sans-serif;
  -webkit-font-smoothing: antialiased;
}
button,
a,
select {
  -webkit-tap-highlight-color: transparent;
}
a {
  color: inherit;
  text-underline-offset: 4px;
}
button {
  font: inherit;
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid #977bc3;
  outline-offset: 5px;
}
button {
  cursor: pointer;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
figure,
p,
h1,
h2,
h3 {
  margin: 0;
}
h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.2;
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.5rem, 5.4vw, 4.5rem);
  letter-spacing: -0.045em;
}
h2 {
  font-size: clamp(1.8rem, 3.1vw, 2.5rem);
  letter-spacing: -0.035em;
}
h3 {
  font-size: 1.05rem;
  letter-spacing: -0.012em;
}
.container {
  width: min(1152px, calc(100% - 48px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: -100px;
  left: 20px;
  background: var(--ink);
  color: var(--base);
  padding: 12px;
}
.skip-link:focus {
  top: 10px;
}
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1200px;
  margin: auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 650;
  text-decoration: none;
}
.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 29px;
  height: 29px;
  background: var(--ink);
  color: var(--base);
  border-radius: 8px;
  font-size: 19px;
  line-height: 1;
  font-family: Georgia, serif;
}
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 25px;
}
.nav-links a {
  text-decoration: none;
  font-size: 13px;
  color: var(--muted);
}
.nav-links a:hover,
.nav-links a[aria-current] {
  color: var(--ink);
}
.nav-actions {
  gap: 10px;
}
.theme-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font-size: 20px;
}
.theme-btn:hover {
  background: var(--soft);
}
.menu-toggle {
  display: none;
}
.language-bar {
  display: flex;
  justify-content: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding: 7px 16px;
  font-size: 12px;
}
.language-bar a {
  color: var(--muted);
  text-decoration: none;
}
.language-bar a[aria-current] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 2px;
}
.btn-dark,
.btn-outline {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 12px 22px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition:
    transform 0.2s,
    background 0.2s;
}
.btn-dark {
  background: var(--ink);
  color: var(--base);
}
.btn-outline {
  border-color: var(--line);
  color: var(--ink);
  background: transparent;
}
.btn-dark:hover,
.btn-outline:hover {
  transform: translateY(-2px);
}
.btn-outline:hover {
  background: var(--soft);
}
.nav-github {
  padding: 7px 14px;
}
.hero {
  padding-top: 76px;
  text-align: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 26px;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6d9276;
  display: inline-block;
  flex-shrink: 0;
}
.hero-intro {
  max-width: 690px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}
.hero-note {
  margin: 20px auto 0;
  max-width: 640px;
  font-size: 12px;
  color: var(--muted);
}
.avatar-preview {
  width: min(330px, 100%);
  margin: 48px auto 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--panel);
}
.preview-top {
  padding: 9px 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  text-align: left;
}
.preview-top > span:last-child {
  margin-left: auto;
  color: var(--muted);
  font-size: 10px;
}
.avatar-preview img {
  width: 100%;
  height: 330px;
  object-fit: contain;
  background: #050505;
}
figcaption {
  padding: 13px 16px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}
.capability-strip {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 44px;
  margin-block: 42px 62px;
  color: var(--muted);
  font-size: 12px;
}
.capability-strip span::before {
  content: '·';
  margin-right: 12px;
}
.section {
  padding: 90px 0;
}
.sec-alt {
  background: var(--panel);
  border-block: 1px solid var(--line);
}
.section-heading {
  max-width: 730px;
  text-align: center;
  margin: 0 auto 46px;
}
.section-heading p {
  margin-top: 16px;
  color: var(--muted);
}
.eyebrow {
  display: block;
  font:
    11px/1.6 ui-monospace,
    monospace;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 18px;
}
.grid-3,
.grid-2 {
  display: grid;
  gap: 20px;
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.card {
  padding: 27px;
  border: 1px solid var(--line);
  background: var(--base);
  border-radius: 12px;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.card:hover {
  border-color: var(--muted);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
}
.card-number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font:
    12px ui-monospace,
    monospace;
}
.card p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 13px;
  line-height: 1.8;
}
.requirements-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}
.requirements-card > p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 10px;
}
.requirements-card table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin-top: 24px;
  font-size: 14px;
  text-align: left;
}
.requirements-card th,
.requirements-card td {
  padding: 10px 5px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.requirements-card thead th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}
.requirements-card tbody th {
  font-weight: 500;
}
.requirements-card .requirements-gpu {
  margin-top: 20px;
  color: var(--ink);
}
.requirements-caveat {
  max-width: 780px;
  margin: 28px auto 0;
  color: var(--muted);
  text-align: center;
  font-size: 14px;
}
.sec-dark {
  --base: #141413;
  --ink: #efefed;
  --muted: #b1b1aa;
  --line: #41413c;
  --soft: #252523;
  background: var(--base);
  color: var(--ink);
}
.flow-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  list-style: none;
}
.flow-grid li {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.step-number {
  font:
    13px ui-monospace,
    monospace;
  color: var(--muted);
  display: block;
  margin-bottom: 20px;
}
.flow-grid p {
  font-size: 13px;
  color: var(--muted);
  margin-top: 13px;
}
.security-card {
  background: var(--panel);
}
.section-link {
  text-align: center;
  margin-top: 30px;
  font-size: 14px;
}
.gallery figure {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 12px;
  overflow: hidden;
}
.gallery img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background: #101018;
}
.quickstart {
  max-width: 750px;
  text-align: center;
}
.quickstart > p {
  color: var(--muted);
  margin: 22px auto 0;
  max-width: 620px;
}
.quickstart ol {
  display: inline-block;
  text-align: left;
  color: var(--muted);
  font-size: 14px;
  margin: 24px 0 0;
}
.quickstart li {
  padding: 5px 0;
}
footer {
  padding: 38px 0;
  border-top: 1px solid var(--line);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
}
.footer-top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: 12px;
}
.footer-top nav a {
  text-decoration: none;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 11px;
}
.footer-bottom p:last-child {
  max-width: 580px;
  text-align: right;
}
.page-heading {
  padding-top: 66px;
  padding-bottom: 42px;
}
.page-heading h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
}
.page-heading > p {
  max-width: 760px;
  margin-top: 20px;
  color: var(--muted);
}
.document-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 58px;
  padding-bottom: 90px;
  align-items: start;
}
.toc {
  position: sticky;
  top: 126px;
  max-height: calc(100vh - 145px);
  overflow: auto;
  font-size: 12px;
}
.toc nav {
  display: grid;
  gap: 12px;
}
.toc strong {
  margin-bottom: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.toc a {
  text-decoration: none;
  color: var(--muted);
  border-left: 1px solid var(--line);
  padding-left: 13px;
}
.toc a:hover {
  color: var(--ink);
  border-color: var(--ink);
}
.prose {
  min-width: 0;
  overflow-wrap: anywhere;
}
.prose h2 {
  font-size: 1.5rem;
  margin: 38px 0 16px;
  line-height: 1.4;
}
.prose section:first-child h2 {
  margin-top: 0;
}
.prose p,
.prose ul {
  color: var(--muted);
  margin: 0 0 20px;
}
.prose li {
  margin-block: 9px;
}
.prose strong {
  color: var(--ink);
}
.prose .updated {
  font-size: 12px;
}
.prose .note {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--soft);
  margin: 24px 0;
  color: var(--ink);
  font-size: 14px;
}
.prose table {
  border-collapse: collapse;
  width: 100%;
  table-layout: fixed;
  margin: 24px 0;
  font-size: 13px;
}
.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}
.prose th {
  background: var(--soft);
}
.prose td {
  color: var(--muted);
}
.prose footer {
  font-size: 13px;
  margin-top: 24px;
}
.manual-prose section {
  scroll-margin-top: 130px;
}
.manual-prose section + section {
  border-top: 1px solid var(--line);
  margin-top: 42px;
  padding-top: 6px;
}
.manual-prose ol {
  color: var(--muted);
  margin: 0 0 20px;
}
.manual-prose :not(pre) > code {
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--soft);
  color: var(--ink);
  font-size: 0.88em;
}
.manual-table-scroll {
  overflow-x: auto;
  margin: 24px 0;
}
.manual-table-scroll table {
  min-width: 620px;
  table-layout: auto;
  margin: 0;
}
.code-block {
  border: 1px solid #44443f;
  border-radius: 12px;
  overflow: hidden;
  background: #252523;
  color: #efefed;
  margin: 24px 0;
}
.code-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #44443f;
  padding: 10px 16px;
  font-size: 12px;
}
.copy-button {
  background: transparent;
  color: inherit;
  border: 1px solid #66665f;
  border-radius: 6px;
  font-size: 12px;
  padding: 5px 10px;
}
pre {
  overflow-x: auto;
  padding: 18px;
  margin: 0;
  font:
    13px/2 ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
}
.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}
.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 24px 0;
}
.dl-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dl-card h4 {
  margin: 0;
  font-size: 17px;
}
.dl-icon {
  display: inline-flex;
  width: 40px;
  height: 40px;
  color: var(--ink);
}
.dl-icon svg {
  width: 100%;
  height: 100%;
}
.dl-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dl-btn {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 10px 14px;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
  transition:
    transform 0.2s,
    background 0.2s;
}
.dl-btn:hover {
  transform: translateY(-2px);
  background: var(--base);
}
.dl-file {
  font-size: 14px;
  font-weight: 600;
}
.dl-hint {
  font-size: 12px;
  color: var(--muted);
}
.dl-note {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}
details.source-install {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 18px;
  margin: 24px 0;
}
details.source-install summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}
details.source-install .code-block {
  margin: 16px 0 0;
}
@media (max-width: 860px) {
  .dl-grid {
    grid-template-columns: 1fr;
  }
}
.copy-status:empty {
  display: none;
}
.reveal-pending {
  opacity: 0;
  transform: translateY(12px);
}
.fade-up {
  transition:
    opacity 0.38s ease,
    transform 0.38s ease;
}
@media (max-width: 960px) {
  .nav-links {
    gap: 16px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .flow-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .document-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 30px;
  }
  .footer-top,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
  .footer-bottom p:last-child {
    text-align: left;
  }
}
@media (max-width: 760px) {
  .container {
    width: calc(100% - 36px);
  }
  .nav-inner {
    gap: 12px;
    padding-inline: 18px;
  }
  .nav-links {
    display: none;
  }
  html.js .menu-toggle {
    display: grid;
  }
  .nav-links.is-open,
  html:not(.js) .nav-links {
    display: flex;
    position: absolute;
    top: 105px;
    left: 0;
    right: 0;
    background: var(--base);
    padding: 18px;
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
    gap: 16px 24px;
  }
  html:not(.js) main {
    padding-top: 62px;
  }
  .hero {
    padding-top: 52px;
  }
  .hero-intro {
    font-size: 16px;
  }
  .section {
    padding-block: 60px;
  }
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .requirements-card {
    padding: 20px;
  }
  .requirements-card table {
    font-size: 12px;
  }
  .flow-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .flow-grid li {
    display: grid;
    grid-template-columns: 32px 1fr;
    column-gap: 14px;
  }
  .flow-grid p {
    grid-column: 2;
    margin-top: 8px;
  }
  .step-number {
    margin-bottom: 0;
    line-height: 1.6;
  }
  .document-layout {
    display: block;
  }
  .toc {
    position: static;
    max-height: none;
    margin-bottom: 34px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 10px;
  }
  .page-heading {
    padding-top: 44px;
  }
  .prose h2 {
    font-size: 1.35rem;
  }
  .prose th,
  .prose td {
    padding: 8px;
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .reveal-pending {
    opacity: 1;
    transform: none;
  }
}