:root {
  color-scheme: dark;
  --navy-950: #07111f;
  --navy-900: #0b1728;
  --navy-800: #11243a;
  --surface: #102139;
  --surface-2: #142a44;
  --ink: #edf6ff;
  --muted: #a6bad0;
  --cyan: #67e8f9;
  --blue: #60a5fa;
  --violet: #a78bfa;
  --line: rgba(174, 205, 232, .17);
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: Inter, "Segoe UI", Arial, sans-serif;
  --font-code: "JetBrains Mono", Consolas, monospace;
  --content: 1160px;
  font-family: var(--font-body);
  background: var(--navy-950);
  color: var(--ink);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; line-height: 1.65; background: radial-gradient(ellipse at 75% 0%, rgba(30, 80, 130, .2), transparent 38rem), var(--navy-950); }
a { color: var(--cyan); text-underline-offset: .22em; }
a:hover { color: white; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; border-radius: 4px; }
img { max-width: 100%; height: auto; }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 20; padding: .7rem 1rem; background: var(--cyan); color: var(--navy-950); font-weight: 700; }
.skip-link:focus { top: 1rem; }
.wrap { width: min(calc(100% - 2.5rem), var(--content)); margin-inline: auto; }
.site-header { position: relative; z-index: 5; border-bottom: 1px solid var(--line); background: rgba(7, 17, 31, .94); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--ink); text-decoration: none; font-family: var(--font-display); font-weight: 700; letter-spacing: -.03em; }
.brand > span > span { color: var(--cyan); }
.brand img { width: 40px; height: 40px; object-fit: contain; }
.nav-list { display: flex; align-items: center; gap: clamp(.7rem, 2vw, 1.45rem); margin: 0; padding: 0; list-style: none; }
.nav-list a { color: var(--muted); text-decoration: none; font-size: .93rem; }
.nav-list a[aria-current="page"] { color: var(--cyan); }
.nav-list a:hover { color: white; }
.mobile-nav { display: none; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: .7rem 1.05rem; border: 1px solid rgba(103, 232, 249, .55); border-radius: 10px; background: linear-gradient(110deg, rgba(34, 211, 238, .16), rgba(96, 165, 250, .16)); color: var(--ink); font-weight: 700; text-decoration: none; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); border-color: var(--cyan); background: rgba(34, 211, 238, .22); color: white; }
.button.secondary { border-color: var(--line); background: var(--surface); }
.header-download { flex: 0 0 auto; white-space: nowrap; }
main { min-height: 65vh; }
.hero { padding: clamp(3.5rem, 8vw, 7.5rem) 0 4rem; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.eyebrow { color: var(--cyan); font: 600 .82rem var(--font-code); letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.13; letter-spacing: -.035em; }
h1 { margin: .8rem 0 1rem; font-size: clamp(2.6rem, 6vw, 5rem); }
.hero-copy h1 span { color: var(--cyan); }
h2 { margin: 0 0 1rem; font-size: clamp(1.8rem, 3.3vw, 2.7rem); }
h3 { margin: 0 0 .6rem; font-size: 1.25rem; }
.lead { max-width: 62ch; color: var(--muted); font-size: clamp(1.05rem, 1.8vw, 1.23rem); }
.hero-art { width: 100%; max-width: 480px; margin-inline: auto; }
.hero-art img { display: block; width: 100%; height: auto; }
.hero-brand-name { margin: .25rem 0 0; color: var(--ink); font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; line-height: 1.1; letter-spacing: -.035em; text-align: center; }
.hero-brand-name span { color: var(--cyan); }
.button-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-intro { max-width: 70ch; margin-bottom: 2rem; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { min-width: 0; padding: 1.35rem; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(145deg, rgba(20, 42, 68, .85), rgba(12, 27, 46, .88)); }
.card p { margin-bottom: 0; color: var(--muted); }
.badge { display: inline-block; margin-bottom: .7rem; padding: .2rem .55rem; border: 1px solid rgba(167, 139, 250, .42); border-radius: 999px; color: #d6caff; font: .75rem var(--font-code); }
.notice { padding: 1rem 1.2rem; border-left: 3px solid var(--violet); border-radius: 0 10px 10px 0; background: rgba(167, 139, 250, .09); color: var(--muted); }
.notice strong { color: var(--ink); }
.page-head { padding: clamp(3rem, 7vw, 5.5rem) 0 2.5rem; }
.page-head h1 { max-width: 17ch; }
.content { max-width: 78ch; }
.content h2 { margin-top: 2.5rem; }
.content h2:first-child { margin-top: 0; }
.content li { margin-block: .45rem; }
.content table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
.content th, .content td { padding: .55rem .75rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.content th { background: var(--surface); color: var(--ink); font-weight: 600; }
.content .table-wrap { overflow-x: auto; margin: 1rem 0; -webkit-overflow-scrolling: touch; }
.content pre { margin: 1rem 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); overflow-x: auto; font-family: var(--font-code); font-size: .88rem; line-height: 1.5; color: #c8dcf5; }
.content pre code { color: inherit; font-size: inherit; }
.doc-breadcrumb { margin: 0 0 1.25rem; font-size: .9rem; color: var(--muted); }
.doc-breadcrumb a { color: var(--muted); text-decoration: none; }
.doc-breadcrumb a:hover { color: var(--cyan); }
.doc-pager { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: .93rem; }
.doc-pager a { text-decoration: none; }
.doc-pager .prev, .doc-pager .next { max-width: 46%; }
.doc-pager .label { display: block; color: var(--muted); font-size: .82rem; margin-bottom: .25rem; }
.doc-anchor-section { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.steps { display: grid; gap: .9rem; counter-reset: step; }
.step { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; align-items: start; padding: 1.1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); color: var(--cyan); font-family: var(--font-code); }
code { font-family: var(--font-code); color: #b9d6ff; }
.site-footer { padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.footer-lead { display: flex; flex-direction: column; gap: 0.35rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.site-footer a { color: var(--muted); }
.small { font-size: .88rem; color: var(--muted); }
.download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.download-meta { margin: -.25rem 0 .75rem; font: .82rem var(--font-code); color: var(--muted); }
.download-actions { display: flex; flex-direction: column; gap: .65rem; margin-top: 1rem; }
.download-actions .button { width: 100%; }
.checksum-list { font-size: .88rem; color: var(--muted); word-break: break-all; }
.checksum-list code { font-size: .8rem; }
.app-screenshot { margin: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--surface); box-shadow: 0 24px 48px #0006; }
.app-screenshot img { display: block; width: 100%; height: auto; }
.app-screenshot figcaption { padding: .85rem 1.1rem; font-size: .88rem; color: var(--muted); border-top: 1px solid var(--line); }
.showcase { margin-top: 2rem; max-width: 960px; }
@media (max-width: 900px) {
  .header-inner { gap: .5rem; }
  .desktop-nav { display: none; }
  .mobile-nav { display: block; }
  .mobile-nav summary { cursor: pointer; list-style: none; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); }
  .header-download { min-height: 44px; padding: .55rem .7rem; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav[open] .nav-list { position: absolute; left: 1rem; right: 1rem; top: calc(100% - .3rem); display: grid; gap: 0; padding: .5rem; border: 1px solid var(--line); border-radius: 12px; background: var(--navy-900); box-shadow: 0 18px 40px #0008; }
  .mobile-nav .nav-list a { display: block; padding: .8rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .hero-art { max-width: 680px; margin-inline: auto; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .wrap { width: min(calc(100% - 1.5rem), var(--content)); }
  .brand img { width: 34px; height: 34px; }
  .brand { gap: .4rem; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 3rem; }
  .card { padding: 1.1rem; }
}
@media (max-width: 380px) {
  .brand { font-size: .88rem; }
  .brand img { width: 28px; height: 28px; }
  .mobile-nav summary { padding: .55rem .6rem; }
  .header-download { padding: .5rem .55rem; font-size: .88rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}