/* siworld site: dark background, thin red lines, nothing else.
   System fonts only, so the page makes no third-party requests. */

:root {
  --bg: #060606;
  --fg: #ededed;
  --text: #cfcfcf;
  --mute: #9a9a9a;
  --dim: #6e6e6e;
  --red: #e43629;
  --red-hi: #ff4a3d;
  --red-line: rgba(228, 54, 41, 0.35);
  --red-faint: rgba(228, 54, 41, 0.12);
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
  --mono: ui-monospace, Menlo, "SF Mono", Consolas, monospace;
  --gut: clamp(16px, 5vw, 88px);
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg); color: var(--fg);
  font: 16px/1.6 var(--sans); font-weight: 300;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
em { font-style: normal; color: var(--red); }
i { font-style: normal; color: var(--red); }
code { font: 14px/1.6 var(--mono); color: var(--fg); }
::selection { background: var(--red); color: #fff; }

/* ---------- Reveal ---------- */
.js [data-reveal] {
  opacity: 0; transform: translateY(24px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js [data-reveal].in { opacity: 1; transform: none; }

/* ---------- Corner brackets ---------- */
.framed { position: relative; }
.br {
  position: absolute; width: 18px; height: 18px; border: 0 solid var(--red);
  transition: transform .9s var(--ease) .2s, opacity .9s var(--ease) .2s;
  pointer-events: none;
}
.br.tl { top: -10px; left: -10px; border-top-width: 2px; border-left-width: 2px; --o: -16px, -16px; }
.br.tr { top: -10px; right: -10px; border-top-width: 2px; border-right-width: 2px; --o: 16px, -16px; }
.br.bl { bottom: -10px; left: -10px; border-bottom-width: 2px; border-left-width: 2px; --o: -16px, 16px; }
.br.br- { bottom: -10px; right: -10px; border-bottom-width: 2px; border-right-width: 2px; --o: 16px, 16px; }
.js .framed:not(.in) .br { opacity: 0; transform: translate(var(--o)); }
.framed:hover .br { transition-delay: 0s; }
.framed:hover .br.tl { transform: translate(-4px, -4px); }
.framed:hover .br.tr { transform: translate(4px, -4px); }
.framed:hover .br.bl { transform: translate(-4px, 4px); }
.framed:hover .br.br- { transform: translate(4px, 4px); }

/* ---------- Progress + nav ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 60; pointer-events: none; }
.progress i { display: block; height: 100%; background: var(--red); transform-origin: left; transform: scaleX(var(--p, 0)); }

.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: 72px;
  display: flex; align-items: center; justify-content: space-between; padding: 0 var(--gut);
  transition: background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(6, 6, 6, .78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-color: var(--red-faint); }
.nav-logo img { display: block; height: 30px; width: auto; }
.nav-links { display: flex; gap: 32px; font-size: 14px; font-weight: 400; letter-spacing: .02em; }
.nav-links a { color: #bdbdbd; position: relative; padding: 6px 0; transition: color .25s; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--red);
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--red-line); color: var(--fg);
  font: 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; padding: 10px 14px; cursor: pointer;
}

/* ---------- Layout ---------- */
.sec {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 128px 0 104px; border-top: 1px solid var(--red-faint); overflow: hidden;
}
.wrap { position: relative; z-index: 1; width: min(1280px, 100% - 2 * var(--gut)); margin: 0 auto; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 120px); align-items: center; }

.idx { font: 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--red); margin-bottom: 24px; }
.h {
  font-weight: 200; font-size: clamp(32px, 3.4vw, 56px); line-height: 1.16; letter-spacing: -.005em;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.split .h { margin-bottom: 32px; }

.rule {
  display: block; height: 1px; background: var(--red); max-width: 440px;
  transform-origin: left; transform: scaleX(0); transition: transform 1.2s var(--ease) .3s;
}
.js .rule[data-reveal] { opacity: 1; transform: scaleX(0); }
.rule.in, .in .rule, html:not(.js) .rule { transform: scaleX(1) !important; }

.btn {
  display: inline-flex; align-items: center; gap: 28px; padding: 14px 22px;
  border: 1px solid var(--red); color: var(--red);
  font: 13px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  transition: background .3s, color .3s, border-color .3s;
}
.btn:hover { background: var(--red); color: #fff; }
.btn-solid { background: var(--red); color: #fff; }
.btn-solid:hover { background: var(--red-hi); border-color: var(--red-hi); }
.btn span { transition: transform .3s var(--ease); }
.btn:hover span { transform: translate(3px, -3px); }

/* ---------- 01 Hero ---------- */
.hero { position: relative; height: 100vh; min-height: 620px; overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(6, 6, 6, .85) 0%, rgba(6, 6, 6, .55) 28%, rgba(6, 6, 6, 0) 46%),
    radial-gradient(ellipse 55% 50% at 0% 0%, rgba(6, 6, 6, .9) 30%, rgba(6, 6, 6, 0) 100%);
}
.hero-copy {
  position: absolute; z-index: 2; left: var(--gut); top: clamp(112px, 16vh, 168px);
  /* Keep the copy in the left column so long status text cannot cover the canvas. */
  width: min(37vw, 640px);
  max-width: calc(100vw - 2 * var(--gut));
}
.hero-title {
  font-weight: 200; font-size: clamp(56px, 7vw, 120px); line-height: 1; letter-spacing: .02em;
  display: flex; overflow: hidden; padding-bottom: .06em;
}
.hero-title span { display: inline-block; }
.js .hero-title span { transform: translateY(110%); transition: transform 1.1s var(--ease); }
.js .hero-title span:nth-child(2) { transition-delay: .06s; }
.js .hero-title span:nth-child(3) { transition-delay: .12s; }
.js .hero-title span:nth-child(4) { transition-delay: .18s; }
.js .hero-title span:nth-child(5) { transition-delay: .24s; }
.js .hero-title span:nth-child(6) { transition-delay: .30s; }
.js .hero-title span:nth-child(7) { transition-delay: .36s; }
.ready .hero-title span { transform: none; }
.hero-sub { margin-top: 20px; font-size: clamp(16px, 1.4vw, 20px); color: #d6d6d6; }
.hero-sub i { margin: 0 .3em; }
.hero-sub b { color: var(--red); font-weight: 300; margin-right: .2em; }
.hero-cta { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-cta .btn:not(.btn-solid) { border-color: rgba(255, 255, 255, .55); color: #fff; }
.hero-cta .btn:not(.btn-solid):hover { border-color: var(--red); background: var(--red); }
.hero-status {
  max-width: 100%;
  margin-top: 18px; font: 12px/1.6 var(--mono); letter-spacing: .08em; color: #a8a8a8;
  overflow-wrap: anywhere;
}
.js .hero-sub, .js .hero-cta, .js .hero-status { opacity: 0; transform: translateY(16px); transition: opacity 1s var(--ease) .7s, transform 1s var(--ease) .7s; }
.js .hero-cta { transition-delay: .9s; }
.js .hero-status { transition-delay: 1.1s; }
.ready .hero-sub, .ready .hero-cta, .ready .hero-status { opacity: 1; transform: none; }

/* ---------- 02 Privacy ---------- */
.compare { border: 1px solid var(--red-line); }
.compare .row { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; border-top: 1px solid var(--red-line); }
.compare .row:first-of-type { border-top: 0; }
.compare .row > div {
  padding: 26px 24px; text-align: center; border-left: 1px solid var(--red-line);
  font: 13px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute);
}
.compare .row > div:first-child { border-left: 0; text-align: left; }
.compare .head > div { color: var(--fg); padding-top: 30px; padding-bottom: 30px; }
.compare .chain { color: var(--fg); }
.compare .hid { color: var(--fg); }
.compare .us { box-shadow: inset 0 0 0 1px var(--red); background: var(--red-faint); }
.compare .us > div { color: var(--red); }
.js .compare .row { opacity: 0; transform: translateX(-12px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.compare.in .row { opacity: 1; transform: none; }
.compare.in .row:nth-of-type(2) { transition-delay: .15s; }
.compare.in .row:nth-of-type(3) { transition-delay: .3s; }
.compare.in .row:nth-of-type(4) { transition-delay: .45s; }
.note { margin-top: 40px; font-size: 16px; color: var(--text); }
.note-gap { margin-top: 12px; font-size: 14px; color: var(--mute); }

/* ---------- 03 Container ---------- */
.facts { margin-top: 36px; }
.facts li { position: relative; padding-left: 24px; margin: 18px 0; color: var(--text); font-size: 16px; line-height: 1.6; }
.facts li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; background: var(--red); }

.crate-top, .crate-status {
  display: flex; justify-content: space-between; gap: 16px;
  font: 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--mute);
}
.crate-top { margin-bottom: 22px; }
.crate-top em { color: var(--red); }
.crate-status { margin-top: 22px; }
#crate-status { color: var(--red); transition: color .3s; }
.crate { border: 1px solid var(--red-line); padding: 14px; transition: border-color .5s, box-shadow .5s; }
.crate.sealed { border-color: var(--red); box-shadow: 0 0 48px rgba(228, 54, 41, .16); }
.crate.sealed #crate-status { color: var(--fg); }
.crate-grid { position: relative; aspect-ratio: 8 / 4.4; }
.slot, .pkg { position: absolute; width: 12.5%; height: 25%; left: calc(var(--c) * 12.5%); top: calc(var(--r) * 25%); padding: 5px; }
.slot::before { content: ""; position: absolute; inset: 5px; border: 1px dashed rgba(228, 54, 41, .22); }
.pkg { transition: left .9s var(--ease), top .9s var(--ease), opacity .45s, transform .55s var(--ease); }
.pkg.off { opacity: 0; transform: translateY(-36px) scale(.7); }
.pkg-b {
  position: relative; height: 100%; border: 1px solid var(--red); background: var(--red-faint);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  color: var(--red); transition: border-color .6s, color .6s, background .6s;
}
.pkg-b svg { width: 38%; height: auto; fill: none; stroke: currentColor; stroke-width: 1.3; }
.pkg-b span { font: 9px/1 var(--mono); letter-spacing: .04em; color: var(--mute); }
.pkg.you .pkg-b { border-color: #fff; color: #fff; background: rgba(255, 255, 255, .08); }
.pkg.you .pkg-b::after {
  content: "you"; position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
  font: 10px/1 var(--mono); color: #fff; letter-spacing: .1em;
}
.crate-scan {
  position: absolute; top: 14px; bottom: 14px; left: 14px; width: 2px; background: var(--red);
  box-shadow: 0 0 16px var(--red); opacity: 0; pointer-events: none;
}
.crate.proving .crate-scan { animation: scan 1.3s var(--ease) forwards; }
@keyframes scan {
  0% { opacity: 1; left: 14px; }
  92% { opacity: 1; }
  100% { opacity: 0; left: calc(100% - 16px); }
}

/* ---------- 04 Packages ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 48px); }
.card { border: 1px solid var(--red-line); padding: 36px 32px 40px; transition: background .4s, border-color .4s; }
.card:hover { background: rgba(228, 54, 41, .04); border-color: rgba(228, 54, 41, .6); }
.card-n { font-size: 40px; font-weight: 200; line-height: 1; color: var(--red); }
.card h3 { margin: 28px 0 18px; font: 13px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--red); font-weight: 400; }
.card .rule { margin-bottom: 24px; opacity: .6; }
.card p:last-child { font-size: 16px; line-height: 1.75; color: var(--text); }
.cards .card:nth-child(2) { --d: .12s; }
.cards .card:nth-child(3) { --d: .24s; }
.strip { margin-top: clamp(48px, 6vw, 80px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.strip li { padding-left: 18px; border-left: 1px solid var(--red); font-size: 14px; color: var(--mute); }

/* ---------- 05 Time ---------- */
.clock { position: relative; height: 120px; margin: 24px 0 64px; }
.clock-axis { position: absolute; left: 0; right: 0; top: -4px; width: 100%; height: 120px; overflow: visible; }
.clock-axis .axis { stroke: var(--red); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-dasharray: 1200; stroke-dashoffset: 1200; transition: stroke-dashoffset 1.8s var(--ease); }
.clock-axis .arrow { fill: none; stroke: var(--red); stroke-width: 1.5; vector-effect: non-scaling-stroke; opacity: 0; transition: opacity .4s 1.6s; }
.clock-axis .ticks line { stroke: var(--red); stroke-width: 1; vector-effect: non-scaling-stroke; opacity: 0; transition: opacity .5s; }
.clock.in .axis { stroke-dashoffset: 0; }
.clock.in .arrow, .clock.in .ticks line { opacity: .7; }
.clock-nodes { position: absolute; inset: 0; }
.cnode {
  position: absolute; top: 0; width: 0; display: flex; flex-direction: column; align-items: center;
  left: var(--x); opacity: 0; transform: translateY(10px); transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.clock.in .cnode { opacity: 1; transform: none; }
.cnode b { font: 12px/1 var(--mono); font-weight: 400; color: var(--red); white-space: nowrap; letter-spacing: .08em; }
.cnode s { display: block; width: 1px; height: 52px; margin-top: 12px; background: var(--red); opacity: .8; }
.cnode u {
  display: block; width: 14px; height: 14px; border: 2px solid var(--red); border-radius: 50%;
  background: var(--bg); margin-top: -7px; position: relative; transition: background .3s, box-shadow .3s;
}
.cnode.future { --fade: .38; }
.clock.in .cnode.future { opacity: .38; }
.cnode.now u { width: 22px; height: 22px; margin-top: -11px; }
.cnode.now u::before { content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--red); }
.cnode.now u::after {
  content: ""; position: absolute; inset: -3px; border-radius: 50%; border: 1px solid var(--red);
  animation: ripple 2.4s ease-out infinite;
}
.cnode.lit u { background: var(--red); box-shadow: 0 0 14px var(--red); }
@keyframes ripple { from { transform: scale(1); opacity: .9; } to { transform: scale(3.2); opacity: 0; } }
.clock-runner {
  position: absolute; top: 76px; left: 0; width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #fff;
  box-shadow: 0 0 10px #fff, 0 0 20px var(--red); opacity: 0;
}
.clock.in .clock-runner { animation: run 4.8s cubic-bezier(.45, 0, .55, 1) 2s infinite; }
@keyframes run {
  0% { left: 0; opacity: 0; }
  10% { opacity: 1; }
  88% { opacity: 1; }
  100% { left: var(--to); opacity: 0; }
}
.clock-label { position: absolute; right: 0; top: 100px; font: 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.cols3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 64px); }
.cols3 p { padding-left: 24px; border-left: 1px solid var(--red-line); font-size: 16px; line-height: 1.7; color: var(--text); }

/* ---------- Perspective floor (06, 10) ---------- */
.floor {
  position: absolute; left: 0; right: 0; bottom: 0; height: 46%; overflow: hidden; pointer-events: none;
  perspective: 360px; perspective-origin: 50% 0%;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 45%); mask-image: linear-gradient(to bottom, transparent, #000 45%);
}
.floor i {
  position: absolute; left: -60%; right: -60%; top: 0; height: 220%;
  transform-origin: 50% 0; transform: rotateX(72deg);
  background-image:
    linear-gradient(rgba(228, 54, 41, .45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(228, 54, 41, .45) 1px, transparent 1px);
  background-size: 72px 72px;
  animation: floor 3.6s linear infinite;
}
@keyframes floor { to { background-position: 0 72px; } }
#tech .floor { height: 34%; opacity: .7; }

/* ---------- 06 Tech ---------- */
.stack { border: 1px solid var(--red-line); background: rgba(6, 6, 6, .7); }
.stack > div {
  position: relative; display: grid; grid-template-columns: minmax(180px, 300px) 1fr; gap: 24px;
  padding: 22px 32px; border-top: 1px solid var(--red-line); transition: background .3s;
}
.stack > div:first-of-type { border-top: 0; }
.stack > div::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--red);
  transform: scaleY(0); transition: transform .35s var(--ease);
}
.stack > div:hover { background: var(--red-faint); }
.stack > div:hover::before { transform: scaleY(1); }
.stack dt { font-size: 15px; font-weight: 400; color: var(--fg); transition: color .3s; }
.stack > div:hover dt { color: var(--red); }
.stack dd { font-size: 15px; color: var(--text); }
.stack dd i { margin: 0 .4em; }
.js .stack > div { opacity: 0; transform: translateY(10px); transition: opacity .6s var(--ease), transform .6s var(--ease), background .3s; }
.stack.in > div { opacity: 1; transform: none; }
.stack.in > div:nth-of-type(2) { transition-delay: .08s; }
.stack.in > div:nth-of-type(3) { transition-delay: .16s; }
.stack.in > div:nth-of-type(4) { transition-delay: .24s; }
.stack.in > div:nth-of-type(5) { transition-delay: .32s; }
.stack.in > div:nth-of-type(6) { transition-delay: .40s; }
.stack.in > div:hover { transition-delay: 0s; }

/* ---------- 07 Fair launch ---------- */
.nums { display: grid; grid-template-columns: repeat(4, 1fr); }
.nums > div { position: relative; text-align: center; padding: 24px clamp(16px, 2vw, 32px); }
.nums > div + div::before {
  content: ""; position: absolute; left: 0; top: -40px; bottom: -40px; width: 1px; background: var(--red-line);
  transform-origin: top; transform: scaleY(0); transition: transform 1.2s var(--ease) .3s;
}
.nums > div.in::before, html:not(.js) .nums > div::before { transform: scaleY(1); }
.nums > div:nth-child(2) { --d: .12s; }
.nums > div:nth-child(3) { --d: .24s; }
.nums > div:nth-child(4) { --d: .36s; }
.num { font-size: clamp(36px, 3.6vw, 56px); font-weight: 200; line-height: 1.1; color: var(--red); font-variant-numeric: tabular-nums; white-space: nowrap; }
.num i { margin: 0 .2em; }
.nums .rule { width: 120px; margin: 22px auto 24px; transform-origin: center; }
.nums p:last-child { font-size: 15px; line-height: 1.7; color: var(--text); }

/* ---------- 08 Roadmap ---------- */
.road { --box: 120px; }
.road-top { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); height: 170px; }
.road-top .phase:nth-child(1) { grid-column: 1; }
.road-top .phase:nth-child(3) { grid-column: 2; }
.road-top .phase:nth-child(5) { grid-column: 3; }
.phase { display: flex; flex-direction: column; align-items: center; width: var(--box); grid-row: 1; }
.phase::after { content: ""; flex: 1; width: 1px; margin-top: 16px; background: var(--red-line); }
.phase-n {
  display: flex; align-items: center; justify-content: center; width: var(--box); height: 96px;
  font-size: 44px; font-weight: 200; color: var(--red);
  --c: var(--red); --l: 18px;
  background:
    linear-gradient(var(--c), var(--c)) 0 0 / var(--l) 2px, linear-gradient(var(--c), var(--c)) 0 0 / 2px var(--l),
    linear-gradient(var(--c), var(--c)) 100% 0 / var(--l) 2px, linear-gradient(var(--c), var(--c)) 100% 0 / 2px var(--l),
    linear-gradient(var(--c), var(--c)) 0 100% / var(--l) 2px, linear-gradient(var(--c), var(--c)) 0 100% / 2px var(--l),
    linear-gradient(var(--c), var(--c)) 100% 100% / var(--l) 2px, linear-gradient(var(--c), var(--c)) 100% 100% / 2px var(--l);
  background-repeat: no-repeat;
}
.gate {
  position: absolute; top: 28px; bottom: 0; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; text-align: center; white-space: nowrap;
}
.gate:nth-child(2) { left: calc(16.667% + var(--box) / 2); }
.gate:nth-child(4) { left: calc(50% + var(--box) / 2); }
.gate b { font: 12px/1 var(--mono); font-weight: 400; letter-spacing: .2em; text-transform: uppercase; color: var(--red); }
.gate span { margin-top: 10px; font-size: 14px; color: var(--fg); }
.gate::after {
  content: ""; flex: 1; width: 1px; margin-top: 14px;
  background: repeating-linear-gradient(to bottom, var(--red) 0 4px, transparent 4px 9px);
  animation: dash 1s linear infinite;
}
@keyframes dash { to { background-position: 0 9px; } }
.road-axis { position: relative; height: 28px; }
.road-axis::before {
  content: ""; position: absolute; left: 0; right: 10px; top: 50%; height: 1.5px; background: var(--red);
  transform-origin: left; transform: scaleX(0); transition: transform 1.8s var(--ease) .2s;
}
.road-axis::after {
  content: ""; position: absolute; right: 0; top: 50%; width: 10px; height: 10px; margin-top: -5px;
  border-top: 1.5px solid var(--red); border-right: 1.5px solid var(--red); transform: rotate(45deg);
  opacity: 0; transition: opacity .4s 1.8s;
}
.road-axis i {
  position: absolute; top: 50%; width: 14px; height: 14px; margin: -7px 0 0 -7px;
  border: 1.5px solid var(--red); background: var(--bg); transform: scale(0); transition: transform .5s var(--ease);
}
.road-axis i:nth-child(1) { left: calc(var(--box) / 2); transition-delay: .3s; }
.road-axis i:nth-child(2) { left: calc(16.667% + var(--box) / 2); transition-delay: .6s; }
.road-axis i:nth-child(3) { left: calc(33.333% + var(--box) / 2); transition-delay: .9s; }
.road-axis i:nth-child(4) { left: calc(50% + var(--box) / 2); transition-delay: 1.2s; }
.road-axis i:nth-child(5) { left: calc(66.667% + var(--box) / 2); transition-delay: 1.5s; }
.road.in .road-axis::before { transform: scaleX(1); }
.road.in .road-axis::after { opacity: 1; }
.road.in .road-axis i { transform: scale(1); }
.road-axis i:nth-child(odd) { background: var(--red); }
.road-cols { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; }
.road-cols h3 { font-size: 20px; font-weight: 400; margin-bottom: 18px; }
.road-cols li { font-size: 15px; line-height: 2; color: var(--text); }
.js .road-cols > div { opacity: 0; transform: translateY(14px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.road.in .road-cols > div { opacity: 1; transform: none; }
.road.in .road-cols > div:nth-child(1) { transition-delay: .5s; }
.road.in .road-cols > div:nth-child(2) { transition-delay: 1.1s; }
.road.in .road-cols > div:nth-child(3) { transition-delay: 1.7s; }

/* ---------- 09 Open source ---------- */
.lede { font-size: clamp(18px, 1.6vw, 24px); font-weight: 300; margin-bottom: 28px; }
.lic li { font-size: 16px; line-height: 2.1; color: var(--text); }
.btns { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 16px; }
.tunnel { position: relative; aspect-ratio: 4 / 3; }
.tunnel svg { width: 100%; height: 100%; display: block; overflow: visible; }
.tunnel line, .tunnel rect { fill: none; stroke: var(--red); vector-effect: non-scaling-stroke; }
.tunnel-diag line { stroke-opacity: .55; stroke-width: 1; }
.tunnel-edge { stroke-width: 1.5; }
.tunnel-rings rect {
  stroke-width: 1; transform-box: fill-box; transform-origin: center;
  animation: fly 7s cubic-bezier(.6, 0, .9, .4) infinite; opacity: 0;
}
@keyframes fly {
  0% { transform: scale(.03); opacity: 0; }
  15% { opacity: .9; }
  85% { opacity: .7; }
  100% { transform: scale(1); opacity: 0; }
}
.tunnel-word {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-size: clamp(24px, 2.6vw, 40px); font-weight: 300; letter-spacing: .2em; text-transform: uppercase; color: var(--red);
  text-shadow: 0 0 24px rgba(228, 54, 41, .5); padding: .4em .5em .4em .7em;
  background: var(--bg); border: 1px solid var(--red-line);
}

/* ---------- 10 Closing ---------- */
.end { justify-content: center; text-align: center; padding-bottom: 32vh; }
.end-line {
  position: absolute; left: 50%; top: 0; width: 1px; height: 22vh; background: var(--red);
  transform-origin: top; transform: scaleY(0); transition: transform 1.6s var(--ease);
}
.end.in .end-line { transform: scaleY(1); }
.end .floor { height: 44%; }
.end-horizon {
  position: absolute; left: 0; right: 0; bottom: 44%; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent, var(--red) 20%, var(--red) 80%, transparent);
  box-shadow: 0 0 24px 2px rgba(228, 54, 41, .45);
  transform: scaleX(0); transition: transform 1.8s var(--ease) .4s;
}
.end.in .end-horizon { transform: scaleX(1); }
.end-copy { position: relative; z-index: 1; }
.end-mark {
  font-size: clamp(56px, 8vw, 128px); font-weight: 200; line-height: 1; letter-spacing: .08em; padding-left: .08em;
}
.js .end-mark { letter-spacing: .32em; transition: opacity 1.4s var(--ease), transform 1.4s var(--ease), letter-spacing 1.8s var(--ease); }
.js .end-mark.in { letter-spacing: .08em; }
.end-tag { margin-top: 24px; font-size: clamp(16px, 1.4vw, 20px); color: #d6d6d6; --d: .4s; }
.end-tag i { margin: 0 .6em; }

/* ---------- Footer ---------- */
.foot {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0; padding: 26px var(--gut);
  border-top: 1px solid var(--red-line); font: 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute);
}
.foot > span { padding: 4px 28px; border-left: 1px solid var(--red-line); }
.foot > span:first-child { padding-left: 0; border-left: 0; }
.foot-mark { color: var(--red); font-weight: 700; letter-spacing: .16em; }
.foot-support a { display: inline-flex; align-items: center; gap: 12px; color: var(--red); }
.foot-support a:hover { color: var(--fg); }
.foot-support a:focus-visible { outline: 1px solid var(--red); outline-offset: 6px; }
.foot-k b { color: var(--fg); font-weight: 400; margin-left: 10px; letter-spacing: 0; }
.foot-lic { margin-left: auto; border-left: 0 !important; padding-right: 0 !important; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .nav-links { gap: 22px; }
  .compare .row > div { padding: 20px 14px; letter-spacing: .08em; }
  .stack > div { grid-template-columns: 200px 1fr; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 0; padding: 8px var(--gut) 24px;
    background: rgba(6, 6, 6, .96); border-bottom: 1px solid var(--red-line);
    opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity .3s, transform .3s;
  }
  .nav-links a { padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--red-faint); }
  .nav-links a::after { display: none; }
  .nav.open .nav-links { opacity: 1; transform: none; pointer-events: auto; }
  .nav.open { background: rgba(6, 6, 6, .96); }

  .sec { min-height: 0; padding: 104px 0 88px; }
  .split, .cards, .cols3, .strip { grid-template-columns: 1fr; }
  .cards { gap: 32px; }
  .cards .card { --d: 0s !important; }
  .nums { grid-template-columns: 1fr 1fr; row-gap: 48px; }
  .nums > div:nth-child(3)::before { display: none; }
  .nums > div + div::before { top: 0; bottom: 0; }
  .tunnel { max-width: 520px; width: 100%; margin: 0 auto; }

  .road-top, .road-axis { display: none; }
  .road-cols { grid-template-columns: 1fr; margin-top: 0; gap: 0; }
  .road-cols > div { position: relative; padding-left: 28px; border-left: 1px solid var(--red); }
  .road-cols > div::before {
    content: ""; position: absolute; left: -6px; top: 6px; width: 11px; height: 11px; background: var(--red);
  }
  .road-cols h3::before { content: attr(data-n); }
  .road-cols > div[data-n] h3::before { content: none; }
  .road-cols > div { --n: attr(data-n); }
  .road-cols > div::after {
    content: attr(data-gate); display: block; margin: 28px 0 28px -28px; padding: 18px 0 18px 28px;
    border-left: 1px dashed var(--red); font: 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--red);
  }
  .road-cols > div:last-child::after { content: none; }
  .road-cols > div:last-child { padding-bottom: 8px; }
  .road.in .road-cols > div { transition-delay: 0s !important; }

  .end { min-height: 92vh; padding-bottom: 30vh; }
  .end-line { height: 16vh; }
  .foot > span { padding: 6px 16px; }
  .foot-lic { margin-left: 0; width: 100%; padding: 14px 0 0 !important; }
}

@media (max-width: 560px) {
  .hero-copy { top: 104px; right: var(--gut); width: auto; max-width: none; }
  .hero::after { background: linear-gradient(rgba(6, 6, 6, .9) 0%, rgba(6, 6, 6, .7) 30%, rgba(6, 6, 6, 0) 42%); }
  .hero-cta .btn { padding: 12px 16px; gap: 16px; }
  .compare .row { grid-template-columns: 1.15fr 1fr 1fr 1fr; }
  .compare .row > div { padding: 16px 6px; font-size: 10px; letter-spacing: .04em; }
  .compare .row > div:first-child { padding-left: 10px; }
  .crate-top, .crate-status { font-size: 10px; letter-spacing: .08em; }
  .pkg-b span { display: none; }
  .pkg { padding: 3px; }
  .slot::before { inset: 3px; }
  .stack > div { grid-template-columns: 1fr; gap: 6px; padding: 18px 20px; }
  .cnode b { font-size: 10px; letter-spacing: 0; }
  .nums { grid-template-columns: 1fr; }
  .nums > div::before { display: none; }
  .foot > span { border-left: 0; padding: 6px 20px 6px 0; }
  .foot > span:first-child { width: 100%; padding-bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js [data-reveal], .js .compare .row, .js .stack > div, .js .road-cols > div, .js .cnode,
  .js .hero-title span, .js .hero-sub, .js .hero-cta, .js .hero-status { opacity: 1 !important; transform: none !important; }
  .js .framed .br { opacity: 1 !important; transform: none !important; }
  .rule, .nums > div::before, .road-axis::before, .road-axis i, .end-line, .end-horizon { transform: none !important; }
  .clock-axis .axis { stroke-dashoffset: 0 !important; }
  .clock-axis .arrow, .clock-axis .ticks line, .road-axis::after { opacity: .7 !important; }
  .js .end-mark { letter-spacing: .08em; }
}