:root {
  color-scheme: dark;
  --background: #000000;
  --panel: #050805;
  --panel-raised: #071007;
  --phosphor: #00ff41;
  --phosphor-dim: #00b32d;
  --phosphor-muted: #008020;
  --amber: #ffb000;
  --foreground: #d9ffe3;
  --muted: #72ad81;
  --border: #00b32d;
  --border-soft: #075f1c;
  --error: #ff3030;
  --glow: 0 0 18px rgb(0 255 65 / 12%);
  --content-width: 1160px;
  --reading-width: 780px;
  --space-1: 0.35rem;
  --space-2: 0.65rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
  --space-6: 3.5rem;
  --radius: 2px;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", "Courier New", monospace;
  --display: "Lucida Console", "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 280px;
  background: var(--background);
  color: var(--foreground);
  font: 1rem/1.65 var(--mono);
  overflow-wrap: anywhere;
}

body::before {
  content: "";
  position: fixed;
  z-index: 1000;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, rgb(0 255 65 / 2.5%) 3px 4px);
  mix-blend-mode: screen;
}

body::after {
  content: "";
  position: fixed;
  z-index: 999;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 150px rgb(0 0 0 / 78%);
}

a { color: var(--phosphor); text-decoration-thickness: 0.08em; text-underline-offset: 0.2em; }
a:hover { color: var(--foreground); }
button, a { -webkit-tap-highlight-color: transparent; }
button { min-height: 44px; font: inherit; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
strong { color: var(--foreground); }

.skip-link {
  position: fixed;
  z-index: 1100;
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--phosphor);
  background: #000;
  color: var(--phosphor);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--border-soft);
  background: rgb(0 0 0 / 94%);
  backdrop-filter: blur(10px);
}
.site-header__inner,
.site-footer__inner {
  width: min(calc(100% - 2rem), var(--content-width));
  margin-inline: auto;
}
.site-header__inner { display: flex; min-height: 62px; align-items: center; justify-content: space-between; gap: var(--space-3); }
.wordmark { color: var(--foreground); font: 700 1rem/1 var(--mono); letter-spacing: 0.06em; text-decoration: none; text-transform: uppercase; }
.wordmark span { color: var(--phosphor); text-shadow: 0 0 8px rgb(0 255 65 / 38%); }
.site-nav ul { display: flex; align-items: center; gap: var(--space-3); margin: 0; padding: 0; list-style: none; }
.site-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); font: 700 0.76rem/1 var(--mono); letter-spacing: 0.07em; text-decoration: none; text-transform: uppercase; }
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--phosphor); }
.site-nav .site-nav__install { min-height: 36px; border: 1px solid var(--phosphor); padding-inline: 0.75rem; color: var(--phosphor); }
.site-nav .site-nav__install:hover { background: var(--phosphor); color: #000; }
.nav-toggle { display: none; border: 1px solid var(--border); border-radius: 0; background: #000; color: var(--phosphor); padding-inline: var(--space-3); }

#main-content { min-height: 72vh; }
.page-shell { width: min(calc(100% - 2rem), var(--reading-width)); margin: var(--space-6) auto; }
.prose h1,
.prose h2,
.prose h3 { color: var(--foreground); font-family: var(--display); line-height: 1.22; scroll-margin-top: 6rem; }
.prose h1 { font-size: clamp(2rem, 7vw, 3.8rem); }
.prose h2 { margin-top: var(--space-6); border-bottom: 1px dashed var(--border-soft); padding-bottom: var(--space-2); color: var(--phosphor); }
.prose h3 { margin-top: var(--space-5); color: var(--amber); }
.prose p,
.prose li { color: var(--muted); }
.prose code { border: 1px solid var(--border-soft); border-radius: 0; background: var(--panel); color: var(--phosphor); padding: 0.1em 0.35em; }
.prose blockquote { margin-inline: 0; border-left: 2px solid var(--amber); background: var(--panel); padding: var(--space-2) var(--space-4); }

.site-footer { border-top: 1px solid var(--border-soft); margin-top: var(--space-6); padding-block: var(--space-5); background: #000; }
.site-footer__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.site-footer p { margin: 0; color: var(--muted); font: 0.82rem/1.5 var(--mono); }
.site-footer p span { color: var(--phosphor); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.site-footer a { min-height: 44px; display: inline-flex; align-items: center; font-size: 0.86rem; }

.eyebrow,
.command-label,
.terminal-prompt { font-family: var(--mono); text-transform: uppercase; }
.eyebrow { color: var(--phosphor-dim); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; }
.command-label { margin: 0 0 var(--space-2); color: var(--phosphor); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.06em; }
.terminal-prompt { margin: 0 0 var(--space-3); color: var(--phosphor); font-size: 0.84rem; }
.terminal-prompt::after { content: "_"; color: var(--phosphor); }

.terminal-panel {
  position: relative;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--glow);
}
.terminal-panel::before {
  content: "[ NOCTURNEL ]";
  display: block;
  padding: 0.45rem var(--space-3);
  border-bottom: 1px solid var(--border-soft);
  color: var(--phosphor-muted);
  font: 0.7rem/1 var(--mono);
  letter-spacing: 0.12em;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--phosphor-dim);
  border-radius: 0;
  padding: 0.7rem 1rem;
  background: #000;
  color: var(--phosphor);
  font: 700 0.8rem/1 var(--mono);
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}
.button:hover { border-color: var(--phosphor); background: var(--panel-raised); color: var(--foreground); }
.button--primary { background: var(--phosphor); color: #000; box-shadow: 0 0 16px rgb(0 255 65 / 18%); }
.button--primary:hover { background: var(--foreground); color: #000; }

.hero {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}
.hero h1 { max-width: 11ch; margin: var(--space-3) 0; color: var(--phosphor); font: 700 clamp(3rem, 8vw, 6.8rem)/0.9 var(--display); letter-spacing: -0.07em; text-shadow: 0 0 22px rgb(0 255 65 / 14%); }
.hero__lede { max-width: 66ch; color: var(--muted); font-size: clamp(1rem, 2vw, 1.15rem); }
.hero__lede strong { color: var(--foreground); }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); margin-top: var(--space-5); }
.release-line { display: flex; align-items: center; gap: 0.55rem; margin-top: var(--space-4); color: var(--phosphor-dim); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.release-light { width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--phosphor); box-shadow: 0 0 10px var(--phosphor); }

.system-panel { overflow: hidden; }
.system-panel::before { content: "[ SYSTEM / READY ]"; color: var(--phosphor); }
.system-panel__identity { display: grid; grid-template-columns: 74px 1fr; align-items: center; gap: var(--space-3); padding: var(--space-4); border-bottom: 1px dashed var(--border-soft); }
.system-panel__identity img { width: 74px; aspect-ratio: 1; border: 1px solid var(--border-soft); background: #000; }
.system-panel__name { margin: 0; color: var(--phosphor); font-size: 1.25rem; font-weight: 700; letter-spacing: 0.08em; }
.system-panel__type { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.72rem; letter-spacing: 0.08em; }
.system-readout { margin: 0; padding: var(--space-3) var(--space-4) var(--space-4); }
.system-readout > div { display: grid; grid-template-columns: minmax(90px, 0.8fr) minmax(0, 1.4fr); gap: var(--space-3); padding: 0.45rem 0; border-bottom: 1px dotted #0a4118; }
.system-readout > div:last-child { border-bottom: 0; }
.system-readout dt { color: var(--phosphor-muted); font-size: 0.72rem; }
.system-readout dd { margin: 0; color: var(--foreground); font-size: 0.78rem; text-align: right; }

.site-section { width: min(calc(100% - 2rem), var(--content-width)); margin-inline: auto; padding-block: var(--space-6); border-top: 1px solid #062b10; }
.section-heading { max-width: 800px; margin-bottom: var(--space-5); }
.section-heading h2 { margin: var(--space-2) 0; color: var(--foreground); font: 700 clamp(1.8rem, 4vw, 3rem)/1.08 var(--display); letter-spacing: -0.035em; }
.section-heading p { color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); }
.feature-card { padding: 0 1.15rem 1.15rem; }
.feature-card::before { content: "[ MODULE ]"; margin-inline: -1.15rem; }
.feature-code { display: inline-block; margin-top: var(--space-3); color: var(--amber); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; }
.feature-card h3 { margin: var(--space-3) 0 var(--space-2); color: var(--phosphor); font: 700 0.96rem/1.35 var(--mono); text-transform: uppercase; }
.feature-card p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.config-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: hidden; }
.config-grid::before { content: "[ DISPLAY PRESETS ]"; grid-column: 1 / -1; }
.config-grid > div { padding: var(--space-4); }
.config-grid > div + div { border-left: 1px dashed var(--border-soft); }
.config-grid h3 { margin-top: 0; color: var(--phosphor); font-size: 0.9rem; letter-spacing: 0.06em; text-transform: uppercase; }
.config-list { margin: 0; padding: 0; list-style: none; }
.config-list li { display: flex; gap: var(--space-3); padding: 0.45rem 0; border-bottom: 1px dotted #0a4118; color: var(--foreground); font-size: 0.86rem; }
.config-list li:last-child { border-bottom: 0; }
.config-list span { color: var(--phosphor-muted); }

.privacy-band { padding: 0 var(--space-4) var(--space-4); }
.privacy-band::before { content: "[ LOCAL DATA POLICY ]"; margin-inline: calc(var(--space-4) * -1); }
.privacy-readout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: var(--space-4) 0; border-top: 1px solid var(--border-soft); border-left: 1px solid var(--border-soft); }
.privacy-readout > div { min-width: 0; padding: var(--space-3); border-right: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.privacy-readout dt { color: var(--phosphor-muted); font-size: 0.7rem; letter-spacing: 0.08em; }
.privacy-readout dd { margin: 0.3rem 0 0; color: var(--foreground); font-size: 0.86rem; }

.screenshot-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-3); }
.screenshot-card { margin: 0; padding: 0 var(--space-2) var(--space-2); overflow: hidden; }
.screenshot-card::before { content: "[ CAPTURE ]"; margin-inline: calc(var(--space-2) * -1); }
.screenshot-card img { width: 100%; margin-top: var(--space-2); border: 1px solid #073b15; border-radius: 0; background: #000; }
.screenshot-card figcaption { padding: var(--space-2) 0 0; color: var(--phosphor-dim); font: 0.72rem/1.4 var(--mono); text-transform: uppercase; }

.facts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
.facts-grid > div { padding: 0 var(--space-4) var(--space-4); }
.facts-grid > div::before { margin-inline: calc(var(--space-4) * -1); }
.facts-grid h3 { margin-top: var(--space-4); color: var(--phosphor); font-family: var(--mono); text-transform: uppercase; }
.facts-grid p { color: var(--muted); }
.format-list { display: flex; flex-wrap: wrap; gap: var(--space-2); padding: 0; list-style: none; }
.format-list li { border: 1px solid var(--border-soft); border-radius: 0; padding: 0.25rem 0.55rem; color: var(--foreground); font-family: var(--mono); }
.support-section { padding-bottom: 1rem; }

.manual-shell { width: min(calc(100% - 2rem), var(--content-width)); margin: var(--space-5) auto; display: grid; grid-template-columns: 260px minmax(0, 1fr); align-items: start; gap: clamp(2rem, 5vw, 5rem); }
.manual-sidebar { position: sticky; top: 84px; border: 1px solid var(--border-soft); border-radius: 0; background: var(--panel); padding: var(--space-3); }
.manual-sidebar__label { margin: 0 0 var(--space-2); color: var(--phosphor); font: 700 0.78rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.manual-nav ol { margin: 0; padding: 0; list-style: none; }
.manual-nav a { display: block; min-height: 44px; padding: 0.55rem 0.7rem; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; }
.manual-nav a:hover,
.manual-nav a[aria-current="page"] { border-left-color: var(--phosphor); background: rgb(0 255 65 / 5%); color: var(--foreground); }
.manual-content { min-width: 0; max-width: var(--reading-width); }
.manual-content > header { margin-bottom: var(--space-5); }
.manual-content > header h1 { margin-bottom: var(--space-2); }
.manual-description { color: var(--muted); font-size: 1.05rem; }
.manual-pager { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--border-soft); }
.manual-pager a { display: block; height: 100%; border: 1px solid var(--border-soft); border-radius: 0; padding: var(--space-3); text-decoration: none; }
.manual-pager__next { text-align: right; }
.heading-anchor { margin-left: var(--space-2); color: var(--phosphor-dim); font-size: 0.75em; text-decoration: none; opacity: 0; }
h2:hover .heading-anchor,
h3:hover .heading-anchor,
.heading-anchor:focus { opacity: 1; }
.topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); padding: 0; list-style: none; }
.topic-grid a { display: block; height: 100%; border: 1px solid var(--border-soft); border-radius: 0; background: var(--panel); padding: var(--space-4); text-decoration: none; }
.topic-grid strong { display: block; color: var(--phosphor); font-family: var(--mono); }
.topic-grid span { display: block; margin-top: var(--space-2); color: var(--muted); }
.error-panel { margin-top: 15vh; padding: var(--space-5); text-align: center; }

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .screenshot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .privacy-readout { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .manual-shell { grid-template-columns: 1fr; }
  .manual-sidebar { position: static; }
}

@media (max-width: 720px) {
  .js .nav-toggle { display: inline-flex; align-items: center; gap: var(--space-2); }
  .js .site-nav { display: none; position: absolute; inset: 62px 0 auto; border-bottom: 1px solid var(--border-soft); background: #000; padding: var(--space-3) 1rem; }
  .js .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav a { width: 100%; }
  .site-nav .site-nav__install { margin-top: var(--space-2); justify-content: center; }
  .hero { grid-template-columns: 1fr; padding-block: var(--space-6); }
  .hero h1 { max-width: 10ch; }
  .system-panel { max-width: 560px; }
  .site-footer__inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .feature-grid,
  .facts-grid,
  .config-grid,
  .topic-grid { grid-template-columns: 1fr; }
  .config-grid > div + div { border-left: 0; border-top: 1px dashed var(--border-soft); }
  .privacy-readout { grid-template-columns: 1fr; }
  .screenshot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .manual-pager { grid-template-columns: 1fr; }
  .manual-pager__next { text-align: left; }
  .system-readout > div { grid-template-columns: 1fr; gap: 0.1rem; }
  .system-readout dd { text-align: left; }
}

@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; }
  .terminal-panel, .wordmark span { box-shadow: none; text-shadow: none; }
}

@media (prefers-contrast: more) {
  :root { --muted: #b8f3c6; --border-soft: #00b32d; --phosphor-dim: #00ff41; }
  .terminal-panel, .manual-sidebar { border-width: 2px; }
}