/* Layout: the page is itself a HUD you scroll through. Numbered panels with corner brackets and
   yellow tag labels (the app's own furniture), on a retro perspective grid. Single committed dark look. */
:root {
  --void: #06060b;
  --panel: #0c0d15;
  --panel-2: #11131d;
  --line: #262838;
  --ink: #efe9dc;
  --mute: #8c8699;
  --hot: #ff2e88;
  --cyan: #22e4ff;
  --tag: #ffd23f;
  --ok: #3dff9a;
  --display: "Chakra Petch", "Bahnschrift", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  --jp: "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font: 400 16px/1.6 var(--body);
  overflow-x: hidden;
}
::selection { background: var(--hot); color: var(--void); }
a { color: var(--cyan); }
:focus-visible { outline: 2px solid var(--tag); outline-offset: 3px; }

#grid-bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.scan { position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(0,0,0,.22) 2px 3px);
  mix-blend-mode: multiply; }
.wrap { position: relative; z-index: 2; padding-inline: var(--gutter); padding-block: 0 64px; max-width: 1320px; margin: 0 auto; }

/* ---------- top bar ---------- */
.bar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; display: flex; align-items: center; gap: 20px;
  padding: 12px var(--gutter); background: color-mix(in srgb, var(--void) 86%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.bar::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 3px;
  background: repeating-linear-gradient(-45deg, var(--tag) 0 8px, transparent 8px 16px); opacity: .55; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: none; }
.brand b { font: 700 18px/1 var(--display); letter-spacing: .04em; text-transform: uppercase; }
.brand small { display: block; font: 500 10px/1.2 var(--mono); color: var(--mute); letter-spacing: .14em; text-transform: uppercase; margin-top: 3px; }
.bar nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.bar nav a { font: 600 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); text-decoration: none; padding: 8px 10px; border: 1px solid transparent; }
.bar nav a:hover { color: var(--ink); border-color: var(--line); }
.clock { font: 700 18px/1 var(--display); background: var(--tag); color: var(--void); padding: 7px 10px; font-variant-numeric: tabular-nums; flex: none; }
.live { font: 600 12px/1 var(--mono); color: var(--ok); display: flex; align-items: center; gap: 6px; flex: none; }
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
@media (max-width: 1080px) { .bar nav { display: none; } }
@media (max-width: 520px) { .live { display: none; } .brand small { display: none; } }

/* ---------- panels ---------- */
.panel { position: relative; background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line);
  padding: clamp(20px, 3vw, 36px); }
.panel::before, .panel::after { content: ""; position: absolute; width: 18px; height: 18px; border: 2px solid var(--cyan); pointer-events: none; }
.panel::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.panel::after { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }
.panel .code { position: absolute; top: 12px; right: 16px; font: 700 40px/1 var(--display); color: transparent;
  -webkit-text-stroke: 1px var(--line); }
.tag { display: inline-block; font: 700 clamp(18px, 2vw, 22px)/1 var(--display); text-transform: uppercase; letter-spacing: .02em;
  background: var(--tag); color: var(--void); padding: 6px 10px 5px; }
.tag.hot { background: var(--hot); color: var(--void); }
.tag.cyan { background: var(--cyan); }
.meta { font: 500 12px/1.4 var(--mono); color: var(--mute); letter-spacing: .08em; }
.jp { position: absolute; right: 10px; top: 70px; writing-mode: vertical-rl; font: 700 12px/1 var(--jp); color: var(--tag); letter-spacing: .3em; opacity: .8; }
section { margin-top: clamp(40px, 6vw, 80px); scroll-margin-top: 90px; }
.head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; margin-bottom: 22px; padding-right: 64px; }
h2 { font: 700 clamp(30px, 4.4vw, 54px)/1.02 var(--display); letter-spacing: -.01em; text-transform: uppercase; margin: 6px 0 14px; text-wrap: balance; }
h2 em { font-style: normal; color: var(--hot); }
h3 { font: 600 20px/1.2 var(--display); letter-spacing: .02em; text-transform: uppercase; margin: 0 0 8px; }
p { margin: 0; max-width: 64ch; }
.lede { font-size: 18px; color: color-mix(in srgb, var(--ink) 84%, var(--mute)); }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr); gap: clamp(24px, 4vw, 56px); align-items: center;
  padding-block: clamp(40px, 7vw, 96px) clamp(24px, 4vw, 48px); }
.hero .eyebrow { font: 600 13px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--cyan); display: flex; gap: 10px; align-items: center; }
.hero .eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--cyan); }
.hero h1 { font: 700 clamp(48px, 8.4vw, 120px)/.88 var(--display); text-transform: uppercase; letter-spacing: -.02em; margin: 18px 0 22px; }
.hero h1 span { display: block; }
.hero h1 .o { color: transparent; -webkit-text-stroke: 2px var(--ink); }
.hero h1 .h { color: var(--hot); text-shadow: 4px 4px 0 color-mix(in srgb, var(--cyan) 45%, transparent); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn { font: 700 15px/1 var(--display); text-transform: uppercase; letter-spacing: .06em; text-decoration: none; padding: 14px 18px;
  border: 2px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; display: inline-flex; gap: 10px; align-items: center;
  box-shadow: 4px 4px 0 var(--hot); transition: transform .12s, box-shadow .12s; }
.btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--hot); }
.btn.primary { background: var(--hot); border-color: var(--hot); color: var(--void); box-shadow: 4px 4px 0 var(--cyan); }
.btn.primary:hover { box-shadow: 6px 6px 0 var(--cyan); }

.anchor { position: relative; padding: 14px; }
.anchor .frame { position: relative; aspect-ratio: 212 / 262; max-width: 100%; overflow: hidden; border: 2px solid var(--hot);
  box-shadow: 0 0 0 6px var(--void), 0 0 0 7px var(--line), 0 30px 80px -20px color-mix(in srgb, var(--hot) 40%, transparent); }
.anchor img { width: 100%; height: 100%; object-fit: cover; image-rendering: pixelated; display: block; filter: contrast(1.08) saturate(1.1); }
.anchor .sweep { position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 0%, color-mix(in srgb, var(--cyan) 22%, transparent) 50%, transparent 54%);
  background-size: 100% 300%; animation: sweep 5s linear infinite; mix-blend-mode: screen; }
@keyframes sweep { from { background-position: 0 100%; } to { background-position: 0 -200%; } }
.anchor .rec { position: absolute; top: 12px; left: 12px; font: 700 11px/1 var(--mono); letter-spacing: .14em; color: var(--ink); background: var(--void); padding: 5px 7px; display: flex; gap: 6px; align-items: center; }
.anchor .rec i { width: 7px; height: 7px; border-radius: 50%; background: var(--hot); }
.anchor .jp { right: -6px; top: 30px; color: var(--hot); font-size: 14px; }
.viz { display: flex; gap: 3px; align-items: center; height: 34px; margin-top: 14px; }
.viz i { flex: 1; height: 3px; background: var(--cyan); transition: height .08s; }
.say { margin-top: 10px; font: 500 14px/1.5 var(--mono); color: var(--ink); min-height: 4.5em; }
.say b { color: var(--tag); font-weight: 600; }
.say .who { color: var(--hot); letter-spacing: .14em; font-size: 11px; margin-right: 8px; }

/* ---------- telemetry strip ---------- */
.strip { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--line); background: var(--panel); }
.strip > div { padding: 16px 18px; border-right: 1px solid var(--line); min-width: 0; }
.strip > div:last-child { border-right: 0; }
.strip .k { font: 600 11px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.strip .v { font: 700 clamp(24px, 2.6vw, 34px)/1.1 var(--display); font-variant-numeric: tabular-nums; margin-top: 6px; }
.strip .v small { font-size: .5em; color: var(--mute); margin-left: 3px; }
.strip .hot { color: var(--hot); } .strip .cy { color: var(--cyan); } .strip .ok { color: var(--ok); }
.strip-cap { margin-top: 10px; }
@media (max-width: 980px) { .strip { grid-template-columns: repeat(4, minmax(0, 1fr)); } .strip > div { border-bottom: 1px solid var(--line); } }
@media (max-width: 520px) { .strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- demo monitor ---------- */
.monitor { position: relative; border: 2px solid var(--line); background: #000; padding: 10px; box-shadow: 0 40px 120px -40px color-mix(in srgb, var(--cyan) 35%, transparent); }
.monitor video { display: block; width: 100%; max-width: 100%; aspect-ratio: 1680 / 1020; background: #000; }
.monitor .tl { position: absolute; top: -12px; left: 18px; }
.chapters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chapters button { font: 600 12px/1 var(--mono); letter-spacing: .06em; color: var(--ink); background: var(--panel-2); border: 1px solid var(--line); padding: 9px 11px; cursor: pointer; font-variant-numeric: tabular-nums; }
.chapters button span { color: var(--tag); margin-right: 8px; }
.chapters button:hover { border-color: var(--hot); }

/* ---------- feature cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { background: var(--panel); padding: 24px; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.card .n { font: 700 12px/1 var(--mono); color: var(--cyan); letter-spacing: .14em; }
.card p { color: color-mix(in srgb, var(--ink) 80%, var(--mute)); font-size: 15px; }
.card .stat { margin-top: auto; padding-top: 12px; font: 600 13px/1.3 var(--mono); color: var(--tag); border-top: 1px dashed var(--line); }
@media (max-width: 900px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .cards { grid-template-columns: minmax(0, 1fr); } }

.shots { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; margin-top: 22px; }
figure { margin: 0; min-width: 0; }
figure img { display: block; width: 100%; max-width: 100%; height: auto; border: 1px solid var(--line); }
figcaption { font: 500 12px/1.5 var(--mono); color: var(--mute); margin-top: 8px; letter-spacing: .04em; }
figcaption b { color: var(--ink); font-weight: 600; }
@media (max-width: 760px) { .shots { grid-template-columns: minmax(0, 1fr); } }

/* ---------- voice ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 40px); align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: minmax(0, 1fr); } }
.term { background: #020205; border: 1px solid var(--line); font: 400 14px/1.7 var(--mono); min-width: 0; }
.term .tb { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--mute); }
.term .tb .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.term .meter { flex: 1; height: 4px; background: var(--panel-2); position: relative; overflow: hidden; max-width: 160px; margin-left: auto; }
.term .meter i { position: absolute; inset: 0 auto 0 0; width: 0; background: linear-gradient(90deg, var(--ok), var(--tag)); transition: width .09s; }
.term .log { padding: 14px 16px; height: 300px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; gap: 2px; }
.term .log div { white-space: pre-wrap; overflow-wrap: anywhere; }
.term .you { color: var(--tag); }
.term .you::before { content: "YOU     "; color: var(--mute); }
.term .ans { color: var(--cyan); }
.term .ans::before { content: "ANCHOR  "; color: var(--mute); }
.term .sys { color: var(--mute); }
.cmds { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.cmds > div { border: 1px solid var(--line); background: var(--panel-2); padding: 14px 16px; min-width: 0; }
.cmds h4 { margin: 0 0 8px; font: 700 12px/1 var(--mono); letter-spacing: .14em; color: var(--cyan); text-transform: uppercase; }
.cmds ul { list-style: none; margin: 0; padding: 0; font: 400 13px/1.75 var(--mono); }
.cmds li q { quotes: "“" "”"; color: var(--ink); }
.cmds li q i { font-style: normal; color: var(--hot); }
.cmds .note { font: 400 12px/1.5 var(--body); color: var(--mute); margin-top: 6px; }
@media (max-width: 560px) { .cmds { grid-template-columns: minmax(0, 1fr); } }

/* ---------- approvals ---------- */
.flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 8px 0 26px; counter-reset: f; }
.flow > div { position: relative; border: 1px solid var(--line); background: var(--panel-2); padding: 16px; min-width: 0; }
.flow > div + div { border-left: 0; }
.flow > div:not(:last-child)::after { content: "▶"; position: absolute; right: -9px; top: 50%; transform: translateY(-50%); color: var(--hot); font-size: 14px; z-index: 1; background: var(--void); line-height: 1; padding: 2px 0; }
.flow b { display: block; font: 700 15px/1.2 var(--display); text-transform: uppercase; letter-spacing: .03em; margin-bottom: 6px; }
.flow code { font: 400 12px/1.5 var(--mono); color: var(--mute); overflow-wrap: anywhere; }
@media (max-width: 820px) { .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); } .flow > div:nth-child(3) { border-left: 1px solid var(--line); } .flow > div:nth-child(n+3) { border-top: 0; } .flow > div:nth-child(2)::after { display: none; } }
@media (max-width: 480px) { .flow { grid-template-columns: minmax(0, 1fr); } .flow > div { border-left: 1px solid var(--line) !important; } .flow > div + div { border-top: 0; } .flow > div::after { display: none; } }

.appr { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; border: 2px solid var(--hot); background: color-mix(in srgb, var(--hot) 8%, var(--panel)); padding: 12px 14px; font: 500 14px/1.3 var(--mono); }
.appr .atool { background: var(--hot); color: var(--void); font-weight: 700; padding: 4px 8px; font-size: 12px; }
.appr .what { flex: 1 1 220px; min-width: 0; }
.appr .what span { color: var(--mute); margin-right: 8px; }
.appr .left { color: var(--tag); font-variant-numeric: tabular-nums; min-width: 3ch; text-align: right; }
.appr button { font: 700 13px/1 var(--mono); padding: 9px 12px; cursor: pointer; border: 1px solid; }
.appr .ok { background: var(--ok); color: var(--void); border-color: var(--ok); }
.appr .no { background: transparent; color: var(--hot); border-color: var(--hot); }
.appr.done { border-color: var(--line); background: var(--panel); }
.bar-t { height: 3px; background: var(--line); margin-top: 6px; overflow: hidden; }
.bar-t i { display: block; height: 100%; width: 100%; background: var(--tag); transform-origin: left; }
pre.out { margin: 14px 0 0; background: #020205; border: 1px solid var(--line); padding: 14px 16px; font: 400 13px/1.6 var(--mono); color: var(--ink); overflow-x: auto; min-height: 4.8em; }
pre.out .c { color: var(--mute); }
pre.out .g { color: var(--ok); }
pre.out .r { color: var(--hot); }

/* ---------- themes ---------- */
.themes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.theme { border: 1px solid var(--line); background: var(--panel-2); min-width: 0; display: flex; flex-direction: column; }
.theme canvas { display: block; width: 100%; aspect-ratio: 16 / 9; max-width: 100%; }
.theme .sw { display: flex; height: 8px; }
.theme .sw i { flex: 1; }
.theme .tx { padding: 14px 16px 16px; }
.theme h3 { margin-bottom: 4px; }
.theme p { font-size: 14px; color: var(--mute); }
@media (max-width: 900px) { .themes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .themes { grid-template-columns: minmax(0, 1fr); } }
.gal { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
@media (max-width: 760px) { .gal { grid-template-columns: minmax(0, 1fr); } }

/* ---------- xr ---------- */
.xr { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 44px); align-items: center; }
@media (max-width: 900px) { .xr { grid-template-columns: minmax(0, 1fr); } }
.cyl { position: relative; height: clamp(200px, 26vw, 320px); perspective: 900px; overflow: hidden; }
.cyl .ring { position: absolute; left: 50%; top: 46%; transform-style: preserve-3d; transform: translate(-50%, -50%) rotateX(4deg); width: 0; height: 0; }
.cyl .sl { position: absolute; top: calc(var(--h) / -2); height: var(--h); width: calc(var(--w) + 1px); left: calc(var(--w) / -2);
  background-image: url(assets/hud-57.jpg); background-size: calc(var(--w) * var(--n)) 100%; background-repeat: no-repeat; backface-visibility: hidden;
  box-shadow: inset 0 0 0 0 transparent; }
.cyl .floor { position: absolute; left: 10%; right: 10%; bottom: 0; height: 40%; background:
  repeating-linear-gradient(90deg, color-mix(in srgb, var(--cyan) 30%, transparent) 0 1px, transparent 1px 40px),
  repeating-linear-gradient(0deg, color-mix(in srgb, var(--cyan) 30%, transparent) 0 1px, transparent 1px 40px);
  transform: perspective(300px) rotateX(62deg); transform-origin: bottom; mask-image: linear-gradient(to top, #000, transparent); -webkit-mask-image: linear-gradient(to top, #000, transparent); }
ul.facts { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
ul.facts li { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 12px; font-size: 15px; border-top: 1px dashed var(--line); padding-top: 10px; }
ul.facts li b { font: 600 12px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); }
@media (max-width: 420px) { ul.facts li { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* ---------- zero cost ---------- */
.zero { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.zero > div { border-left: 3px solid var(--ok); padding: 4px 0 4px 16px; min-width: 0; }
.zero .big { font: 700 44px/1 var(--display); color: var(--ok); }
.zero h3 { margin-top: 10px; font-size: 16px; }
.zero p { font-size: 14px; color: var(--mute); }
@media (max-width: 900px) { .zero { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .zero { grid-template-columns: minmax(0, 1fr); } }

/* ---------- install ---------- */
.steps { display: grid; gap: 10px; counter-reset: s; }
.step { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 14px; align-items: center; border: 1px solid var(--line); background: #020205; padding: 10px 12px; }
.step::before { counter-increment: s; content: counter(s, decimal-leading-zero); font: 700 20px/1 var(--display); color: var(--hot); }
.step code { font: 400 14px/1.5 var(--mono); color: var(--ink); overflow-x: auto; white-space: nowrap; display: block; }
.step code span { color: var(--mute); }
.copy { font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); background: transparent; border: 1px solid var(--line); padding: 7px 9px; cursor: pointer; }
.copy:hover { color: var(--ink); border-color: var(--ink); }
.copy.ok { color: var(--ok); border-color: var(--ok); }
.reqs { margin-top: 18px; font: 500 13px/1.6 var(--mono); color: var(--mute); }

footer { margin-top: 64px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 10px 28px; justify-content: space-between; font: 400 12px/1.6 var(--mono); color: var(--mute); }
footer b { color: var(--ink); font-weight: 600; }

@media (max-width: 860px) { .hero { grid-template-columns: minmax(0, 1fr); } .anchor { max-width: 380px; } .jp { display: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .anchor .sweep { animation: none; opacity: 0; }
  .btn, .btn:hover { transition: none; transform: none; }
}

/* ---------- additions: detail sections ---------- */
body { margin: 0; }
.sample-note { display: inline-flex; gap: 8px; align-items: center; font: 600 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--tag); border: 1px dashed color-mix(in srgb, var(--tag) 60%, transparent); padding: 6px 9px; }

/* architecture */
.arch { display: grid; grid-template-columns: minmax(0, 1fr) 56px minmax(0, .8fr) 56px minmax(0, 1fr); align-items: stretch; gap: 0; margin-top: 8px; }
.arch .col { display: grid; gap: 10px; align-content: center; min-width: 0; }
.arch .node { border: 1px solid var(--line); background: var(--panel-2); padding: 12px 14px; min-width: 0; }
.arch .node b { display: block; font: 700 14px/1.2 var(--display); text-transform: uppercase; letter-spacing: .03em; }
.arch .node code { display: block; font: 400 12px/1.5 var(--mono); color: var(--mute); margin-top: 4px; overflow-wrap: anywhere; }
.arch .core { border: 2px solid var(--hot); background: color-mix(in srgb, var(--hot) 7%, var(--panel)); padding: 18px; display: grid; gap: 8px; align-content: center; }
.arch .core b { font: 700 20px/1.1 var(--display); text-transform: uppercase; }
.arch .core ul { margin: 0; padding: 0 0 0 16px; font-size: 14px; color: color-mix(in srgb, var(--ink) 82%, var(--mute)); }
.arch .pipe { position: relative; }
.arch .pipe::before { content: ""; position: absolute; left: 6px; right: 6px; top: 50%; height: 2px; background: repeating-linear-gradient(90deg, var(--cyan) 0 8px, transparent 8px 14px); background-size: 28px 2px; animation: flow 1.2s linear infinite; }
.arch .pipe::after { content: "▶"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); color: var(--cyan); font-size: 12px; }
@keyframes flow { to { background-position: 28px 0; } }
@media (max-width: 900px) {
  .arch { grid-template-columns: minmax(0, 1fr); }
  .arch .pipe { height: 34px; }
  .arch .pipe::before { left: 50%; right: auto; top: 4px; bottom: 4px; width: 2px; height: auto; background: repeating-linear-gradient(180deg, var(--cyan) 0 8px, transparent 8px 14px); }
  .arch .pipe::after { content: "▼"; right: auto; left: 50%; top: auto; bottom: -6px; transform: translateX(-50%); }
}
.detail-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 28px; margin-top: 26px; }
.detail-list > div { border-top: 1px dashed var(--line); padding-top: 12px; min-width: 0; }
.detail-list h4 { margin: 0 0 4px; font: 700 12px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); }
.detail-list p { font-size: 15px; color: color-mix(in srgb, var(--ink) 80%, var(--mute)); }
@media (max-width: 700px) { .detail-list { grid-template-columns: minmax(0, 1fr); } }

/* tables */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); background: #020205; }
table { border-collapse: collapse; width: 100%; font: 400 14px/1.5 var(--body); }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 600 11px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); background: var(--panel-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
td code, .inline code, p code, li code { font: 400 .9em/1 var(--mono); color: var(--tag); }
td .sev { display: inline-block; font: 700 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 3px 6px; margin-right: 8px; vertical-align: 1px; }
.sev.high { background: var(--hot); color: var(--void); }
.sev.med { background: var(--tag); color: var(--void); }
.sev.low { background: var(--cyan); color: var(--void); }
td b { font-weight: 600; }
.tbl-note { margin-top: 10px; }

/* optimizer layout */
.opt { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 36px); align-items: start; }
@media (max-width: 960px) { .opt { grid-template-columns: minmax(0, 1fr); } }
.gauge { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 18px; align-items: center; border: 1px solid var(--line); background: var(--panel-2); padding: 16px; margin-bottom: 18px; }
.gauge svg { width: 150px; height: 96px; max-width: 100%; }
.gauge dl { margin: 0; display: grid; grid-template-columns: auto auto; gap: 4px 16px; font: 500 13px/1.4 var(--mono); }
.gauge dt { color: var(--mute); }
.gauge dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
@media (max-width: 420px) { .gauge { grid-template-columns: minmax(0, 1fr); } }
.alerts { display: grid; gap: 10px; }
.alert { border-left: 3px solid var(--tag); background: var(--panel-2); padding: 10px 14px; }
.alert b { display: block; font: 700 13px/1.3 var(--mono); color: var(--ink); }
.alert span { font-size: 14px; color: var(--mute); }
.tip { margin-top: 18px; border: 1px solid var(--line); background: #020205; padding: 14px 16px; min-height: 128px; }
.tip .tl { display: flex; justify-content: space-between; gap: 10px; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); margin-bottom: 10px; }
.tip .cmd { font: 700 16px/1.2 var(--mono); color: var(--hot); }
.tip p { margin-top: 6px; font-size: 15px; }
.tip button { font: 600 11px/1 var(--mono); color: var(--ink); background: transparent; border: 1px solid var(--line); padding: 5px 8px; cursor: pointer; }
.tip button:hover { border-color: var(--hot); }

/* segments */
.segs { display: flex; flex-wrap: wrap; gap: 0; margin-top: 18px; border: 1px solid var(--line); }
.segs span { flex: 1 1 120px; padding: 10px 12px; font: 600 12px/1.3 var(--mono); border-right: 1px solid var(--line); color: var(--mute); }
.segs span:last-child { border-right: 0; }
.segs span b { display: block; color: var(--ink); font: 700 14px/1.2 var(--display); text-transform: uppercase; margin-top: 3px; }

/* theme screenshots */
.theme img { display: block; width: 100%; height: auto; max-width: 100%; border-bottom: 1px solid var(--line); }
.theme .tx { display: grid; gap: 4px; }
.theme .flag { font: 700 10px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--tag); }

/* keys */
.keys { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.keys > div { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); background: var(--panel-2); padding: 12px 14px; min-width: 0; }
kbd { font: 700 13px/1 var(--mono); color: var(--void); background: var(--ink); padding: 6px 8px; border-radius: 3px; box-shadow: 0 3px 0 var(--mute); white-space: nowrap; }
.keys span { font-size: 14px; color: color-mix(in srgb, var(--ink) 82%, var(--mute)); }
@media (max-width: 820px) { .keys { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .keys { grid-template-columns: minmax(0, 1fr); } }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 36px); align-items: start; }
@media (max-width: 900px) { .two { grid-template-columns: minmax(0, 1fr); } }
h3.sub { margin: 26px 0 12px; font-size: 16px; color: var(--cyan); }

/* steps list (xr) */
ol.how { margin: 18px 0 0; padding: 0; list-style: none; counter-reset: h; display: grid; gap: 8px; }
ol.how li { counter-increment: h; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 10px; font-size: 15px; }
ol.how li::before { content: counter(h, decimal-leading-zero); font: 700 16px/1.5 var(--display); color: var(--hot); }

/* faq */
.faq { display: grid; gap: 8px; }
.faq details { border: 1px solid var(--line); background: var(--panel-2); }
.faq summary { cursor: pointer; list-style: none; padding: 14px 16px; font: 600 16px/1.3 var(--display); text-transform: uppercase; letter-spacing: .02em; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--hot); font: 700 20px/1 var(--mono); }
.faq details[open] summary::after { content: "−"; }
.faq details > div { padding: 0 16px 16px; color: color-mix(in srgb, var(--ink) 82%, var(--mute)); font-size: 15px; display: grid; gap: 8px; }
.paths { margin-top: 18px; }
@media (prefers-reduced-motion: reduce) { .arch .pipe::before { animation: none; } }

/* ---------- install: neon "coming soon" sign ---------- */
.neon-wrap { display: grid; place-items: center; padding-block: clamp(28px, 6vw, 72px); }
.neon { margin: 0; max-width: none; text-align: center; font: 700 clamp(48px, 11vw, 150px)/1 var(--display); text-transform: uppercase; letter-spacing: .04em;
  color: #ffe6f2; text-shadow: 0 0 4px #fff, 0 0 12px var(--hot), 0 0 28px var(--hot), 0 0 60px var(--hot), 0 0 110px color-mix(in srgb, var(--hot) 70%, transparent); }
.neon .n2 { color: #e6fdff; text-shadow: 0 0 4px #fff, 0 0 12px var(--cyan), 0 0 28px var(--cyan), 0 0 60px var(--cyan), 0 0 110px color-mix(in srgb, var(--cyan) 70%, transparent); }
.neon > span:first-child { animation: flicker 6s infinite; }
.neon .dim { animation: buzz 2.3s infinite; }
@keyframes flicker {
  0%, 18%, 22%, 25%, 53%, 57%, 100% { opacity: 1; }
  20%, 24%, 55% { opacity: .25; text-shadow: none; }
}
@keyframes buzz {
  0%, 40%, 44%, 46%, 100% { opacity: 1; }
  42%, 45% { opacity: .15; text-shadow: none; }
  70% { opacity: .7; }
}
@media (prefers-reduced-motion: reduce) { .neon > span:first-child, .neon .dim { animation: none; } }