:root {
  color-scheme: dark;
  --canvas: #080e15;
  --text: #edf1f2;
  --text-muted: #a7b5be;
  --text-dim: #788b99;
  --steel: #8bb8cf;
  --steel-bright: #c0d9e5;
  --signal: #dc6b67;
  --line: rgba(167, 193, 207, .22);
  --site-gutter: clamp(1.25rem, 4.4vw, 5rem);
  --display: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); color: var(--text); font-family: var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: var(--steel); color: var(--canvas); }
button, a { touch-action: manipulation; }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--steel-bright); outline-offset: 5px; }
img, svg { display: block; }
.skip-link { position: fixed; z-index: 100; left: 1rem; top: 1rem; transform: translateY(-160%); padding: .75rem 1rem; background: var(--steel-bright); color: var(--canvas); text-decoration: none; font-weight: 700; }
.skip-link:focus { transform: translateY(0); }

.site-header { height: 88px; padding: 0 var(--site-gutter); display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 3.75rem); position: absolute; z-index: 20; top: 0; left: 0; right: 0; border-bottom: 1px solid rgba(195, 218, 230, .12); }
.wordmark { display: inline-flex; align-items: center; min-height: 44px; gap: .72rem; font-size: 1.05rem; font-weight: 900; letter-spacing: .1em; text-decoration: none; white-space: nowrap; }
.wordmark-x, .footer-wordmark span { color: var(--signal); }
.wordmark-symbol { width: 25px; height: 25px; border: 2px solid #aecad9; transform: rotate(45deg); display: grid; place-items: center; position: relative; }
.wordmark-symbol::before, .wordmark-symbol::after { content: ""; position: absolute; background: #aecad9; }
.wordmark-symbol::before { width: 1px; height: 37px; }
.wordmark-symbol::after { height: 1px; width: 37px; }
.wordmark-symbol span { width: 5px; height: 5px; background: var(--signal); border-radius: 50%; }
.header-edition { margin-right: auto; padding-left: clamp(1.5rem, 2vw, 2.5rem); border-left: 1px solid var(--line); color: var(--text-dim); font: 500 .62rem/1.4 var(--mono); letter-spacing: .16em; text-transform: uppercase; max-width: 11rem; }
.main-nav { display: flex; align-items: center; gap: clamp(1rem, 2.1vw, 2.25rem); white-space: nowrap; }
.main-nav a, .header-action { text-decoration: none; font: 600 .67rem/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.main-nav a { display: inline-flex; align-items: center; min-height: 44px; color: #becbd2; transition: color .18s ease; }
.main-nav a:hover, .main-nav a[aria-current="true"] { color: var(--text); }
.header-action { display: inline-flex; align-items: center; min-height: 44px; color: var(--steel-bright); border-bottom: 1px solid var(--steel); padding: .55rem 0; white-space: nowrap; }
.header-action span { margin-left: .55rem; }

main { position: relative; overflow: hidden; background: linear-gradient(180deg, #080e15 0%, #0a121b 24%, #0a111a 53%, #0c1822 78%, #090f16 100%); }
.world-route { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; overflow: visible; }
.world-route path { fill: none; vector-effect: non-scaling-stroke; }
.route-bed { stroke: rgba(119, 157, 179, .12); stroke-width: 2; stroke-dasharray: 5 12; }
.route-active { stroke: url(#route-gradient); stroke-width: 2; filter: drop-shadow(0 0 8px rgba(174, 204, 214, .36)); }
.route-beacon { fill: var(--steel-bright); stroke: rgba(164, 209, 228, .22); stroke-width: 14; vector-effect: non-scaling-stroke; }
.scene { min-height: 880px; min-height: max(880px, 100svh); position: relative; z-index: 2; isolation: isolate; padding: 9rem var(--site-gutter) 7rem; }
.scene::before { content: ""; position: absolute; z-index: -1; left: var(--site-gutter); right: var(--site-gutter); top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(155, 191, 208, .18), transparent); }
.scene-hero::before { display: none; }
.scene-copy { position: relative; z-index: 3; max-width: 33rem; }
.scene-index { display: flex; align-items: center; gap: 1.05rem; color: var(--steel-bright); font: 600 .7rem/1.2 var(--mono); letter-spacing: .17em; text-transform: uppercase; margin: 0 0 1.55rem; }
.scene-index span { width: 2.2rem; height: 1px; background: var(--steel); opacity: .6; }
h1, h2, p { margin-top: 0; }
h1, h2 { text-wrap: balance; }
h1, h2, .waypoint-title { font-family: var(--display); font-weight: 400; text-transform: uppercase; }
.scene h2 { font-size: clamp(4.7rem, 8vw, 8.75rem); line-height: .92; letter-spacing: -.025em; margin: 0 0 1.65rem; }
.scene-copy > p:not(.scene-index) { max-width: 27rem; font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.55; color: var(--text-muted); text-wrap: pretty; }
.scene-note { display: flex; flex-direction: column; gap: .45rem; border-top: 1px solid var(--line); max-width: 20rem; padding-top: 1.2rem; margin-top: 3rem; font: 600 .64rem/1.5 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.scene-note span:first-child { color: var(--steel); }
.scene-note span:last-child { color: var(--text-dim); letter-spacing: .03em; text-transform: none; font-size: .77rem; }

.scene-hero { min-height: 800px; min-height: 100svh; padding-top: 9.5rem; display: flex; align-items: center; }
.scene-number { position: absolute; z-index: 4; left: var(--site-gutter); top: 7.25rem; display: flex; align-items: baseline; gap: .35rem; font: 600 .62rem/1 var(--mono); letter-spacing: .15em; color: var(--text-dim); }
.scene-number span:first-child { color: var(--signal); font-size: .88rem; }
.hero-content { position: relative; z-index: 5; width: min(55%, 740px); padding-bottom: 2rem; }
.eyebrow { display: flex; align-items: center; gap: .9rem; color: var(--steel-bright); font: 600 .7rem/1.5 var(--mono); letter-spacing: .13em; text-transform: uppercase; margin-bottom: 2.15rem; }
.eyebrow-line { width: 3rem; height: 1px; background: var(--signal); flex: none; }
.hero-content h1 { font-size: clamp(5rem, 8.3vw, 10rem); line-height: .88; letter-spacing: -.025em; margin: 0 0 2rem; max-width: 11ch; position: relative; }
.hero-content h1 em { font-style: normal; color: #bcd3dd; }
.hero-description { max-width: 28rem; color: #c4d0d5; font-size: clamp(1.15rem, 1.55vw, 1.4rem); line-height: 1.5; margin-bottom: 2rem; text-wrap: pretty; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.6rem; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: space-between; gap: 2.3rem; padding: 0 1.25rem 0 1.35rem; text-decoration: none; font: 700 .73rem/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%); transition: background-color .18s ease, transform .14s ease, color .18s ease; }
.button-primary { color: #071018; background: #b5d3df; }
.button-primary span { font: 1.2rem/1 var(--body); }
.button:focus-visible { outline: none; box-shadow: inset 0 0 0 3px #071018, inset 0 0 0 5px #eaf6f8; }
.button:active, .header-action:active, .text-link:active { transform: scale(.97); }
@media (hover: hover) { .button-primary:hover { background: #e3f0f4; } .text-link:hover { color: var(--text); } }
.text-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--steel-bright); text-decoration: none; font: 600 .7rem/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; transition: color .18s ease, transform .14s ease; }
.text-link span { margin-left: .5rem; }
.mobile-scene-nav { display: none; }
.hero-art { position: absolute; z-index: 2; width: min(82vw, 1360px); height: min(78vw, 930px); right: -10vw; top: 10%; pointer-events: none; transform: translate3d(0, var(--hero-shift, 0px), 0); }
.hero-art img { width: 100%; height: 100%; object-fit: contain; opacity: .97; filter: saturate(.9) contrast(1.08); }
.hero-art::before { content: ""; position: absolute; z-index: 1; inset: -3px; background: linear-gradient(90deg, var(--canvas) 0%, rgba(8,14,21,.92) 13%, rgba(8,14,21,.28) 39%, transparent 68%), linear-gradient(0deg, var(--canvas), transparent 22%, transparent 77%, rgba(8,14,21,.25)); }
.hero-halo { position: absolute; width: 47%; height: 60%; right: 16%; top: 20%; background: radial-gradient(ellipse, rgba(69, 117, 147, .18), transparent 68%); filter: blur(26px); }
.world-label { position: absolute; z-index: 2; color: #c6d3d8; font: 600 .58rem/1 var(--mono); letter-spacing: .13em; white-space: nowrap; }
.world-label i { position: absolute; width: 26px; height: 1px; top: 50%; background: currentColor; }
.world-label--edge { left: 29%; top: 54%; color: #ee9d98; }
.world-label--edge i { left: calc(100% + .7rem); }
.world-label--core { right: 19%; top: 45%; }
.world-label--core i { right: calc(100% + .7rem); }
.hero-target { position: absolute; z-index: 2; width: 34px; height: 34px; border: 1px solid rgba(229, 112, 108, .52); border-radius: 50%; }
.hero-target::after { content: ""; position: absolute; inset: 11px; background: var(--signal); border-radius: 50%; }
.hero-target--one { left: 39%; top: 55%; }
.hero-target--two { left: 48%; top: 36%; transform: scale(.6); opacity: .65; }
.hero-footer { position: absolute; z-index: 5; left: var(--site-gutter); right: var(--site-gutter); bottom: 2.1rem; display: flex; align-items: center; gap: 1.25rem; color: var(--text-dim); font: 600 .58rem/1.2 var(--mono); letter-spacing: .14em; }
.hero-footer-line { flex: 1; height: 1px; background: var(--line); }

.scene-perimeter { min-height: 940px; display: flex; align-items: center; }
.perimeter-copy { margin-left: auto; width: 39%; padding-top: 2rem; }
.perimeter-art { position: absolute; z-index: 2; left: -9%; top: 2%; width: 70%; height: 99%; overflow: hidden; transform: rotate(-4deg); }
.perimeter-art::before { content: ""; position: absolute; z-index: 1; inset: 0; background: radial-gradient(ellipse at 41% 47%, transparent 25%, rgba(10,18,27,.12) 52%, #0a121b 82%), linear-gradient(90deg, transparent 53%, #0a121b 97%); }
.perimeter-art img { width: 143%; height: 112%; object-fit: cover; object-position: 0 50%; transform: translate(-18%, -4%); filter: saturate(.7) contrast(1.25); }
.perimeter-rings { position: absolute; z-index: 2; width: 370px; height: 370px; top: 23%; left: 23%; overflow: visible; }
.perimeter-rings circle:not(.perimeter-pin), .perimeter-rings path { fill: none; stroke: rgba(227, 105, 101, .36); stroke-width: 1; }
.perimeter-rings circle:nth-child(2) { stroke-dasharray: 4 8; }
.perimeter-rings circle:nth-child(3) { stroke: rgba(227, 105, 101, .15); }
.perimeter-pin { fill: var(--signal); }
.perimeter-coordinate { position: absolute; z-index: 3; top: calc(23% + 195px); left: calc(23% + 195px); padding: .5rem .7rem; background: rgba(11, 18, 25, .87); color: #ffc0ba; font: 600 .58rem/1 var(--mono); letter-spacing: .1em; white-space: nowrap; }
.red-dot { display: inline-block; width: 6px; height: 6px; margin-right: .45rem; background: var(--signal); border-radius: 50%; vertical-align: 1px; }
.perimeter-aside { position: absolute; z-index: 3; left: var(--site-gutter); bottom: 3rem; max-width: 15rem; color: var(--text-dim); font: 600 .6rem/1.6 var(--mono); letter-spacing: .05em; text-transform: uppercase; }

.scene-signal { min-height: 930px; display: flex; align-items: center; }
.signal-atmosphere { position: absolute; z-index: -1; inset: 0; background: radial-gradient(ellipse at 42% 48%, rgba(60, 113, 145, .16), transparent 53%); }
.signal-copy { width: 38%; margin-left: auto; }
.signal-visual { position: absolute; z-index: 2; width: min(58vw, 830px); aspect-ratio: 1.12; left: 3%; top: 50%; transform: translateY(-48%); }
.signal-visual-frame { position: absolute; inset: 8% 5%; border: 1px solid rgba(144, 190, 211, .19); overflow: hidden; clip-path: polygon(0 0, 94% 0, 100% 6%, 100% 100%, 6% 100%, 0 94%); }
.signal-visual-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,23,34,.3), rgba(10,21,31,.02) 55%, rgba(10,21,31,.42)), radial-gradient(circle at 49% 49%, transparent 5%, rgba(9,18,27,.43) 66%, rgba(9,18,27,.9)); }
.signal-visual-frame img { width: 190%; height: 160%; object-fit: cover; object-position: center; transform: translate(-27%, -21%) rotate(2deg); filter: saturate(.65) hue-rotate(5deg) contrast(1.1); }
.signal-sweep { position: absolute; z-index: 2; width: 42%; aspect-ratio: 1; left: 29%; top: 27%; border: 1px solid rgba(130, 198, 224, .48); border-radius: 50%; box-shadow: 0 0 0 48px rgba(107, 166, 195, .035), 0 0 0 96px rgba(107, 166, 195, .023); }
.signal-sweep::before, .signal-sweep::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(130, 198, 224, .3); }
.signal-sweep::before { inset: 23%; }
.signal-sweep::after { inset: -23%; border-style: dashed; opacity: .6; }
.signal-axis { position: absolute; z-index: 3; background: rgba(154, 208, 231, .22); }
.signal-axis--horizontal { height: 1px; width: 58%; top: 50%; left: 21%; }
.signal-axis--vertical { width: 1px; height: 58%; top: 21%; left: 50%; }
.signal-node { position: absolute; z-index: 4; left: calc(50% - 12px); top: calc(50% - 12px); width: 24px; height: 24px; border: 1px solid var(--steel-bright); border-radius: 50%; background: rgba(35, 80, 105, .75); box-shadow: 0 0 0 8px rgba(120, 187, 218, .08); }
.signal-node span { display: block; width: 6px; height: 6px; margin: 8px; background: var(--steel-bright); border-radius: 50%; }
.signal-annotation { position: absolute; z-index: 3; color: var(--steel-bright); font: 600 .56rem/1.3 var(--mono); letter-spacing: .15em; }
.signal-annotation--a { left: 8%; top: 4%; }
.signal-annotation--b { right: 2%; bottom: 3%; }

.scene-response { min-height: 1050px; display: flex; flex-direction: column; justify-content: space-between; }
.response-backdrop { position: absolute; z-index: -1; inset: 0; overflow: hidden; opacity: .52; }
.response-backdrop::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, #0b141e 2%, transparent 29%, rgba(11,22,33,.35) 60%, #0b1722 100%), linear-gradient(90deg, #0b141e 0%, transparent 47%, #0b141e 100%); }
.response-backdrop img { width: 108%; height: 110%; object-fit: cover; object-position: 65% 53%; transform: translate(5%, -2%); filter: saturate(.58) hue-rotate(6deg); }
.response-copy { max-width: 44rem; }
.response-copy h2 { max-width: 8ch; }
.response-waypoints { position: relative; z-index: 3; width: min(100%, 1050px); display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 5vw, 7rem); padding: 0; margin: 7rem 0 3rem auto; list-style: none; }
.response-waypoints::before { content: ""; position: absolute; left: 2rem; right: 2rem; top: 1rem; border-top: 1px solid rgba(153, 197, 217, .45); }
.response-waypoints li { position: relative; padding-top: 3rem; display: flex; flex-direction: column; }
.response-waypoints li::before { content: ""; position: absolute; top: .62rem; left: 0; width: 13px; height: 13px; border: 2px solid var(--steel-bright); background: #0b1722; transform: rotate(45deg); }
.waypoint-index { color: var(--steel); font: 600 .62rem/1 var(--mono); letter-spacing: .12em; margin-bottom: .85rem; }
.waypoint-title { font-size: clamp(2.8rem, 3.6vw, 4.4rem); line-height: 1; letter-spacing: -.01em; }
.waypoint-detail { max-width: 13rem; margin-top: .85rem; color: var(--text-muted); font-size: .93rem; line-height: 1.45; }
.response-endpoint { position: absolute; right: var(--site-gutter); bottom: 3rem; display: flex; align-items: center; gap: .65rem; color: var(--steel-bright); font: 600 .6rem/1 var(--mono); letter-spacing: .12em; }
.response-endpoint span { width: 7px; height: 7px; background: var(--steel-bright); border-radius: 50%; }

.scene-demo { min-height: 930px; min-height: max(930px, 100svh); display: flex; align-items: center; padding-bottom: 12rem; }
.demo-content { position: relative; z-index: 4; width: min(47%, 620px); }
.demo-content h2 { font-size: clamp(5rem, 8.2vw, 9rem); max-width: 10ch; }
.demo-content > p:not(.scene-index):not(.demo-disclosure) { color: var(--text-muted); max-width: 25rem; font-size: 1.17rem; line-height: 1.55; margin-bottom: 2rem; }
.button-demo { min-width: 230px; }
.demo-art { position: absolute; z-index: 2; right: -5%; top: 6%; width: 68%; height: 85%; overflow: hidden; }
.demo-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #0a141e 0%, rgba(10,20,30,.32) 25%, transparent 50%), linear-gradient(0deg, #0a141e 0%, transparent 22%, transparent 75%, #0a141e 100%), radial-gradient(ellipse at 62% 44%, transparent 20%, rgba(10,20,30,.36) 67%); }
.demo-art img { position: absolute; width: 145%; height: 135%; object-fit: cover; transform: translate(-27%, -11%); filter: saturate(.7) hue-rotate(7deg) contrast(1.1); }
.demo-orbit { position: absolute; z-index: 2; width: 47%; aspect-ratio: 1; border-radius: 50%; border: 1px solid rgba(169, 210, 228, .18); left: 35%; top: 15%; }
.demo-orbit--two { transform: scale(.75); border-style: dashed; opacity: .6; }
.demo-orbit--three { transform: scale(.49); border-color: rgba(169, 210, 228, .31); }
.site-footer { position: absolute; z-index: 5; bottom: 0; left: var(--site-gutter); right: var(--site-gutter); min-height: 95px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: var(--text-dim); font: 600 .65rem/1.4 var(--mono); letter-spacing: .05em; }
.footer-wordmark { color: var(--text); font: 900 .95rem/1 var(--body); letter-spacing: .1em; }
.site-footer a { display: inline-flex; align-items: center; min-height: 44px; color: var(--steel-bright); text-decoration: none; white-space: nowrap; }

@media (max-width: 1100px) {
  .header-edition { display: none; }
  .main-nav { margin-left: auto; }
  .hero-content { width: 62%; }
  .hero-art { right: -19vw; width: 95vw; height: 85vw; top: 15%; }
  .world-label { display: none; }
  .perimeter-copy, .signal-copy { width: 43%; }
  .perimeter-art { width: 77%; left: -19%; }
  .signal-visual { width: 63vw; left: -4%; }
  .demo-content { width: 50%; }
}

@media (max-width: 760px) {
  :root { --site-gutter: clamp(1.2rem, 5vw, 2.5rem); }
  .site-header { height: 72px; }
  .main-nav { display: none; }
  .header-action { margin-left: auto; }
  .wordmark { font-size: .88rem; }
  .wordmark-symbol { width: 20px; height: 20px; }
  .wordmark-symbol::before { height: 30px; }
  .wordmark-symbol::after { width: 30px; }
  .world-route { opacity: .55; }
  .scene { min-height: auto; padding: 7rem var(--site-gutter) 5.5rem; }
  .scene h2 { font-size: clamp(4.25rem, 14vw, 7rem); }
  .scene-hero { min-height: 920px; min-height: 100svh; padding-top: 8rem; padding-bottom: 5.5rem; align-items: flex-start; }
  .scene-number { top: 5.8rem; }
  .hero-content { width: 100%; padding-top: 2rem; }
  .eyebrow { font-size: .58rem; max-width: 22rem; margin-bottom: 1.65rem; }
  .eyebrow-line { width: 2rem; }
  .hero-content h1 { font-size: clamp(4.5rem, 14vw, 7.5rem); max-width: 11ch; margin-bottom: 1.35rem; }
  .hero-description { max-width: 26rem; font-size: 1.05rem; }
  .hero-actions { gap: 1.25rem; }
  .hero-actions .text-link { display: none; }
  .mobile-scene-nav { display: flex; align-items: center; gap: clamp(1rem, 5vw, 2.5rem); margin-top: 1.1rem; }
  .mobile-scene-nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--steel-bright); text-decoration: none; text-transform: uppercase; font: 600 .64rem/1 var(--mono); letter-spacing: .13em; }
  .mobile-scene-nav a:active { transform: scale(.97); }
  .hero-art { width: 130vw; height: 92vw; top: auto; bottom: 3.5rem; right: -35vw; }
  .hero-art::before { background: linear-gradient(180deg, #080e15 0%, rgba(8,14,21,.4) 20%, transparent 52%), linear-gradient(90deg, rgba(8,14,21,.25), transparent 35%); }
  .hero-footer { display: none; }
  .world-label { font-size: .44rem; }
  .hero-target { transform: scale(.7); }
  .hero-target--two { transform: scale(.42); }
  .scene-perimeter { min-height: 880px; align-items: flex-start; padding-top: 7rem; }
  .perimeter-copy { width: 100%; margin: 0; padding: 0; }
  .perimeter-copy h2 { max-width: 9ch; }
  .perimeter-art { top: 36%; left: -24%; width: 140%; height: 63%; transform: rotate(-3deg); }
  .perimeter-art::before { background: linear-gradient(180deg, #0a121b 0%, transparent 32%, rgba(10,18,27,.1) 65%, #0a121b 100%), linear-gradient(90deg, transparent 55%, #0a121b); }
  .perimeter-art img { width: 135%; transform: translate(-13%, -4%); }
  .perimeter-rings { width: 280px; height: 280px; left: 27%; top: 21%; }
  .perimeter-coordinate { top: calc(21% + 150px); left: calc(27% + 150px); }
  .perimeter-aside { display: none; }
  .scene-signal { min-height: 890px; display: block; }
  .signal-copy { width: 100%; margin: 0; }
  .signal-copy h2 { max-width: 10ch; }
  .signal-visual { width: 112%; max-width: none; left: -6%; top: auto; bottom: 1rem; aspect-ratio: 1.2; transform: none; }
  .signal-visual-frame { inset: 10% 3%; }
  .signal-annotation--a { left: 8%; }
  .signal-annotation--b { right: 4%; }
  .scene-response { min-height: 1000px; }
  .response-backdrop img { width: 170%; transform: translate(-28%, 4%); }
  .response-copy h2 { max-width: 9ch; }
  .response-waypoints { display: flex; flex-direction: column; gap: 1.65rem; width: 100%; margin: 3rem 0 2rem; padding-left: 1rem; }
  .response-waypoints::before { left: 1.35rem; right: auto; top: 1rem; bottom: 1rem; border-top: 0; border-left: 1px solid rgba(153,197,217,.45); }
  .response-waypoints li { padding: 0 0 0 2.2rem; }
  .response-waypoints li::before { left: 0; top: .15rem; }
  .waypoint-title { font-size: 3rem; }
  .waypoint-detail { margin-top: .35rem; }
  .response-endpoint { bottom: 2rem; }
  .scene-demo { min-height: 900px; min-height: 100svh; align-items: flex-start; padding-top: 7rem; padding-bottom: 10rem; }
  .demo-content { width: 100%; }
  .demo-content h2 { font-size: clamp(4.4rem, 14vw, 7rem); max-width: 10ch; }
  .demo-art { width: 130%; height: 56%; top: auto; bottom: 4.5rem; right: -28%; }
  .demo-art::after { background: linear-gradient(180deg, #0a141e 0%, transparent 22%, transparent 60%, #0a141e 100%), linear-gradient(90deg, #0a141e 0%, transparent 35%); }
  .demo-art img { width: 140%; height: 130%; transform: translate(-17%, -9%); }
  .site-footer { min-height: 76px; }
  .site-footer > span:nth-child(2) { display: none; }
}

@media (max-width: 420px) {
  .site-header { gap: .7rem; }
  .wordmark { gap: .45rem; font-size: .77rem; }
  .header-action { font-size: .56rem; }
  .header-action span { margin-left: .25rem; }
  .hero-content h1 { font-size: clamp(4.05rem, 15.2vw, 5.4rem); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .scene h2, .demo-content h2 { font-size: clamp(3.85rem, 15vw, 5rem); }
  .scene-copy > p:not(.scene-index), .demo-content > p:not(.scene-index) { font-size: 1rem; }
  .perimeter-rings { left: 21%; }
  .perimeter-coordinate { left: calc(21% + 150px); }
  .response-waypoints { gap: 1.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .text-link, .main-nav a { transition-duration: 0s; }
  .hero-art { transform: none; }
}