:root{color-scheme:dark;--bg:#050914;--text:#edf3ff;--muted:#a9b9d6;--line:#26354e;--cyan:#48daff;--gold:#ffce76;--accent:var(--gold);font-family:Inter,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 75% 30%,#111c381f,transparent 65%),var(--bg)}button,select,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button,select{font:inherit;font-size:13px;color:inherit}button,select,summary{cursor:pointer}button{background:transparent;border:1px solid var(--line)}button:disabled,select:disabled{opacity:.5;cursor:default}button:hover:not(:disabled),a:hover{color:#fff;border-color:var(--cyan)}:focus-visible{outline:2px solid var(--cyan);outline-offset:5px}button{min-height:44px}p{line-height:1.65}h1,h2,p{margin-top:0}.skip{position:absolute;left:20px;top:-100px;z-index:10;background:var(--bg);padding:12px}.skip:focus{top:10px}.header,main,footer{max-width:1536px;margin:auto}.header{height:98px;display:flex;justify-content:space-between;align-items:center;padding:0 48px;gap:20px}.brand{display:flex;align-items:center;gap:18px;font-size:21px;font-weight:600;letter-spacing:5px}.brand-orbit{width:43px;height:43px;border:1px solid #b9dbff;border-radius:50%;position:relative;box-shadow:0 0 15px #42b8ff22}.brand-orbit:before,.brand-orbit:after{content:"";position:absolute;inset:5px;border:1px solid #49bfff;border-radius:50%}.brand-orbit:after{inset:12px;border-color:#4ea2f355}.header nav{display:flex;gap:40px;font-size:14px;letter-spacing:1.5px}main{padding:0 48px}.experience{position:relative;display:grid;grid-template-columns:32% 68%;min-height:550px;align-items:center}.intro{z-index:1;padding:30px 0}h1{font-size:clamp(50px,6.5vw,96px);line-height:.93;letter-spacing:-3px;font-weight:800;margin-bottom:18px}h1 span{background:linear-gradient(110deg,#29d3ff 5%,#707bff 58%,#e071f9);background-clip:text;color:transparent}.lead{font-size:18px;color:#b9cae5;letter-spacing:.5px;margin-bottom:38px;max-width:410px}.scene-index{letter-spacing:3px;color:var(--accent);font-size:13px;margin-bottom:12px}.narrative h2{font-size:25px;line-height:1.25;font-weight:500;letter-spacing:-.4px;margin-bottom:16px}.narrative>p:last-child{color:#bac9e2;font-size:15px;max-width:365px;min-height:100px}.primary{border-color:#7faeff;border-radius:28px;padding:14px 26px;letter-spacing:.8px;box-shadow:0 0 6px #438aff80,inset 0 0 12px #3a62cc30;background:#081427cc;display:flex;align-items:center;gap:20px}.primary span{font-size:21px}.demo-note{color:#8196b5;font-size:11px;margin:20px 0 0}.universe{height:550px;position:relative;min-width:0;isolation:isolate}canvas{width:100%;height:100%;display:block;touch-action:pan-y;cursor:grab}canvas:active{cursor:grabbing}.static-orb{position:absolute;left:22%;top:13%;width:56%;aspect-ratio:1;border:1px solid #58c7ff;border-radius:50%;box-shadow:0 0 65px #3c8cdd3d,inset 0 0 55px #8649ff55;background:radial-gradient(circle at 32% 30%,#57deff33,transparent 60%);pointer-events:none;z-index:-1}.static-orb:before,.static-orb:after{content:"";position:absolute;inset:18% -20%;border:1px solid #e9ae5777;border-radius:50%;transform:rotate(-27deg)}.static-orb:after{inset:-10% 25%;border-color:#e268f999;transform:rotate(-35deg)}.scene-caption{position:absolute;left:18px;right:18px;top:8px;display:flex;justify-content:space-between;gap:12px;color:#839cbd;font-size:10px;letter-spacing:1.6px;pointer-events:none}.scene-caption span:first-child{color:var(--accent)}.scene-tools{position:absolute;left:50%;transform:translateX(-50%);bottom:35px;display:flex;gap:4px;border:1px solid #26354e80;border-radius:24px;padding:3px;background:#050914a8;backdrop-filter:blur(8px)}.scene-tools button{border:0;min-width:38px;font-size:19px;padding:0 10px}.scene-tools button:last-child{font-size:11px}.gesture-hint{position:absolute;bottom:0;width:100%;text-align:center;font-size:10px;letter-spacing:.4px;color:#8b9ebc;pointer-events:none}.modes{border:1px solid var(--line);border-radius:44px;display:grid;grid-template-columns:repeat(5,1fr);margin:15px 0 28px;padding:6px;background:#050b16c9}.modes button{display:flex;align-items:center;justify-content:center;text-align:left;gap:14px;padding:6px;border-radius:36px;border-color:transparent;font-size:12px;letter-spacing:1.3px;min-width:0}.modes button[aria-pressed=true]{border-color:var(--accent);background:linear-gradient(90deg,#c59a2715,transparent);box-shadow:0 0 15px #d0ab2910}.modes small{display:block;color:#a1b2ce;font-size:9px;letter-spacing:.9px;margin-top:7px;text-transform:uppercase}.orb{flex-shrink:0;width:43px;height:43px;border:1px solid currentColor;border-radius:50%;box-shadow:inset 0 0 15px currentColor,0 0 10px #ffffff10;background:repeating-radial-gradient(ellipse at 35% 30%,transparent 0 5px,#ffffff18 6px 7px)}.gold{color:#ffd37e}.violet{color:#b685ff}.blue{color:#45bfff}.pink{color:#f478db}.green{color:#37dfc3}.destination{display:flex;gap:25px;align-items:center;padding:26px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(115deg,#101b2d77,#09111b55);min-height:147px}.destination-mark{flex:0 0 88px;font-size:78px;color:var(--accent);text-align:center;text-shadow:0 0 25px var(--accent);border-right:1px solid var(--accent);line-height:1;padding-right:24px}.small{font-size:11px;color:#a6b9d6;letter-spacing:.5px;margin-bottom:12px}.destination h2{font-weight:500;font-size:19px;letter-spacing:.5px;margin-bottom:10px}.destination-copy{flex:1}.destination-copy>p:last-child{font-size:12px;color:#b6c6e0;max-width:800px;margin:0}.destination-link{border:1px solid var(--accent);border-radius:30px;white-space:nowrap;padding:13px 23px;font-size:12px;color:var(--accent);box-shadow:0 0 15px #ffd47710}.destination-link span{margin-left:15px}.controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:23px;padding:12px 0;border-bottom:1px solid #1f2b40}.controls button{border:0;padding:8px 12px;color:#b8cae2}.controls button[aria-pressed=true]{color:var(--cyan)}.controls label{display:flex;align-items:center;gap:10px;color:#9db0cf;font-size:11px;margin-left:12px}.controls select{background:#0b1424;border:1px solid #26354e;border-radius:7px;padding:10px}.controls output{margin-left:auto;font-size:10px;letter-spacing:1px;color:#8a9cbb}.status{font-size:11px;color:#9fb5d4;margin:12px 0;min-height:19px}.guide{border-top:1px solid #1a273d;margin-top:24px}.guide summary{padding:23px 0;font-size:13px;letter-spacing:.7px;color:#b6c9e6}.guide-content{max-width:1050px;padding:12px 0 35px}.guide-content h2{font-size:24px;font-weight:500;margin-top:25px}.guide-content p{font-size:15px;color:#b4c5de}.route-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;margin-bottom:35px}.route-list a{padding:17px 0;border-bottom:1px solid #243048}.route-list strong{font-size:15px;font-weight:500;color:var(--cyan)}.route-list span{display:block;font-size:13px;color:#a6b8d2;margin-top:8px;line-height:1.6}footer{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid #1b273b;padding:24px 48px;font-size:10px;letter-spacing:1.3px;color:#889dbc}footer nav{display:flex;gap:20px;font-size:11px;letter-spacing:0}[hidden]{display:none!important}
@media(min-width:1450px){.experience{min-height:570px}.universe{height:570px}.intro{padding:35px 0}.modes{margin-top:15px}}
@media(max-width:1100px){.header{padding:0 28px}.brand{font-size:17px;letter-spacing:3px}main{padding:0 28px}.experience{grid-template-columns:36% 64%;min-height:520px}.universe{height:520px}.modes button{gap:8px;font-size:10px;letter-spacing:.5px}.orb{width:32px;height:32px}.modes small{font-size:8px;letter-spacing:0}.destination-mark{display:none}.lead{font-size:16px}.narrative h2{font-size:23px}footer{padding:24px 28px}}
@media(max-width:700px){.header{height:76px;padding:0 20px}.brand{font-size:13px;letter-spacing:2px;gap:10px}.brand-orbit{width:29px;height:29px}.brand-orbit:after{inset:9px}.header nav{gap:16px;font-size:11px;letter-spacing:0}.header nav a:first-child{display:none}main{padding:0 20px}.experience{display:flex;flex-direction:column;align-items:stretch;min-height:0}.intro{display:contents}h1{font-size:62px;letter-spacing:-2px;line-height:.94;order:0;margin:20px 0 12px}.lead{order:1;font-size:14px;margin-bottom:8px}.universe{order:2;height:350px;margin:0 -18px}.scene-caption{top:15px;font-size:8px}.scene-caption span:last-child{display:none}.narrative{order:3;margin-top:8px}.narrative h2{font-size:25px}.narrative>p:last-child{max-width:none;min-height:0;font-size:14px}.primary{order:4;align-self:flex-start;padding:9px 20px;font-size:12px}.demo-note{order:5;margin:15px 0 20px;font-size:10px}.modes{border-radius:18px;grid-template-columns:repeat(3,1fr);padding:6px;gap:4px;margin:0 0 20px}.modes button{border-radius:12px;flex-direction:column;gap:8px;text-align:center;padding:12px 3px;min-height:89px;font-size:9px}.modes small{font-size:8px}.orb{width:30px;height:30px}.destination{display:block;padding:22px;border-radius:15px}.destination h2{font-size:19px;line-height:1.4}.destination-copy>p:last-child{font-size:13px}.destination-link{display:inline-flex;margin-top:20px;padding:12px 22px}.controls{gap:3px;margin-top:12px}.controls button{font-size:11px;padding:6px 10px}.controls label{margin-left:8px;margin-top:6px}.controls output{width:100%;margin:8px}.route-list{grid-template-columns:1fr}.guide summary{line-height:1.7;font-size:12px}footer{align-items:flex-start;flex-direction:column;padding:22px 20px}footer nav{gap:14px;font-size:10px}.scene-tools{bottom:30px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
/* SIGNAL SPACE 2: one persistent spatial shell. */
body{background:#030711}.header{height:78px}.experience{min-height:540px;grid-template-columns:31% 69%}.universe{height:560px;overflow:hidden;background:#030711}.intro{padding:24px 0}.lead{margin-bottom:28px;font-size:16px}.narrative h2{font-size:24px}.narrative>p:last-child{font-size:14px;line-height:1.7;min-height:96px}.demo-note{margin-top:14px;font-size:10px}h1{font-family:Orbitron,'Arial Black','Segoe UI',sans-serif;font-size:clamp(52px,5.4vw,83px);font-weight:700;letter-spacing:-2px}.brand{font-family:Orbitron,'Segoe UI',sans-serif;font-size:16px;letter-spacing:4px}.primary{font-size:12px;padding:12px 24px}.modes{margin-top:4px}.modes button{font-size:11px}.orb{box-shadow:inset 0 0 13px currentColor,0 0 14px color-mix(in srgb,currentColor 40%,transparent)}.modes button[aria-pressed=true] .orb{box-shadow:inset 0 0 20px currentColor,0 0 22px currentColor}.destination{padding:22px;min-height:128px}.destination h2{font-size:18px}.controls{margin-top:14px;padding:7px 0}.controls button{font-size:11px;padding:7px 9px}.controls label{margin-left:4px}.controls select{font-size:11px;padding:8px}.core-reticle{position:absolute;left:50%;top:47%;transform:translate(-50%,-50%);pointer-events:none;width:52px;height:52px;border-radius:50%;border:1px solid #ffd27888;box-shadow:0 0 20px #ffc65b3d,inset 0 0 22px #f9d87722}.core-reticle i{position:absolute;inset:6px;border:1px solid #ffcc6777;border-radius:50%}.core-reticle i:nth-child(2){inset:13px}.core-reticle i:nth-child(3){inset:24px -28px;border-radius:0;border-width:1px 0 0}.core-reticle span{position:absolute;left:0;right:0;top:60px;text-align:center;font-size:8px;letter-spacing:2px;color:#d8bf88}.orbital-label{position:absolute;font:8px/1.6 monospace;letter-spacing:1.2px;color:#7c9abd;pointer-events:none;opacity:.7}.orbital-label--one{top:18%;right:7%}.orbital-label--two{bottom:22%;left:3%}.orbital-label--three{bottom:19%;right:4%}.scene-tools{bottom:32px}.gesture-hint{font-size:9px;bottom:1px}.world-map{display:grid;grid-template-columns:1fr 1.6fr;gap:40px;padding:25px 0;border-top:1px solid #20304a;margin-top:20px}.world-map h2{font-size:20px;font-weight:500;margin-bottom:12px}.world-map p{font-size:13px;color:#a8bad3;margin:0}.world-map nav{display:flex;gap:8px;flex-wrap:wrap;align-content:center}.world-map a{padding:10px 15px;border:1px solid #29405f;border-radius:24px;font-size:11px;color:#b7d4f3;background:#0b183077}.world-map a:hover{box-shadow:0 0 20px #37cfff25;border-color:#67d9ff}.space-panel{position:fixed;inset:0;z-index:1000;background:#030711;display:flex;flex-direction:column}.space-panel-header{display:flex;align-items:center;gap:16px;min-height:65px;padding:12px 24px;border-bottom:1px solid #254766;background:radial-gradient(ellipse at 15% 50%,#173e6355,transparent 60%),#060b18}.space-panel-header button{border-radius:22px;padding:8px 18px;color:#85dfff}.mini-core{font-size:30px;color:#66dfff;text-shadow:0 0 15px #47afff}.space-panel-header strong{font-size:15px;letter-spacing:1px;font-weight:500}.space-panel-header a{margin-left:auto;font-size:12px;color:#b6c8e3}.space-panel nav{display:flex;gap:7px;padding:10px 24px;overflow-x:auto;flex-shrink:0}.space-panel nav a{padding:8px 12px;font-size:11px;border:1px solid #253851;border-radius:20px;white-space:nowrap}.space-panel nav a[aria-current=page]{background:#14334c;border-color:#59d3f3;color:#95edff}.space-panel>p{margin:0;padding:4px 26px 9px;font-size:10px;color:#819bbd}.space-page-host,#space-page-host{flex:1;min-height:0;position:relative}.space-panel iframe{width:100%;height:100%;border:0;background:#050914;display:block}.space-reading{overflow:hidden}.space-reading>footer{visibility:hidden}.space-panel:not([hidden]){animation:space-open .45s ease both}@keyframes space-open{from{opacity:0;transform:scale(.965)}to{opacity:1;transform:scale(1)}}
/* Immersive view retains all camera and exit controls. */
.is-immersed{overflow:hidden}.is-immersed .universe{position:fixed;inset:0;z-index:50;width:100vw;height:100dvh;margin:0}.is-immersed .controls{position:fixed;z-index:52;left:20px;right:20px;bottom:15px;background:#071020e8;border:1px solid #294669;padding:10px;border-radius:18px;backdrop-filter:blur(16px)}.is-immersed .modes{position:fixed;z-index:51;left:20px;right:20px;top:16px;background:#061023d9}.is-immersed .scene-tools{bottom:100px}.is-immersed .gesture-hint{bottom:76px}.is-immersed .scene-caption{top:110px}.is-immersed .world-map,.is-immersed footer{visibility:hidden}
@media(max-width:1100px) and (min-width:701px){.experience{grid-template-columns:34% 66%}.universe{height:520px}h1{font-size:59px}.narrative>p:last-child{font-size:13px}}
@media(max-width:700px){.header{height:70px}.brand{font-size:11px;letter-spacing:2px}.experience{min-height:0}h1{font-size:54px;margin:18px 0 12px}.universe{height:370px;width:calc(100% + 36px)}.lead{font-size:13px;margin-bottom:0}.narrative h2{font-size:23px}.narrative>p:last-child{min-height:0;font-size:14px}.modes{margin-top:18px}.controls{gap:4px}.world-map{grid-template-columns:1fr;gap:20px}.world-map h2{font-size:19px}.world-map nav{gap:7px}.world-map a{padding:10px 13px}.orbital-label{font-size:6px}.space-panel-header{gap:9px;padding:10px 12px;flex-wrap:wrap}.space-panel-header strong{font-size:12px}.space-panel-header a{font-size:10px}.space-panel-header button{font-size:11px;padding:7px 13px}.mini-core{font-size:22px}.space-panel nav{padding:9px 12px}.space-panel>p{padding-left:14px;font-size:9px}.is-immersed .modes{display:flex;overflow:auto;left:10px;right:10px;top:8px;border-radius:18px}.is-immersed .modes button{min-width:85px;padding:5px 8px;min-height:72px}.is-immersed .modes small{display:none}.is-immersed .controls{left:8px;right:8px;bottom:8px;gap:1px}.is-immersed .controls label{display:none}.is-immersed .scene-tools{bottom:162px}.is-immersed .gesture-hint{bottom:139px}.is-immersed .scene-caption{top:103px}.is-immersed .core-reticle{top:47%}.core-reticle{width:40px;height:40px}.core-reticle span{top:48px}}
@media(prefers-reduced-motion:reduce){.space-panel:not([hidden]){animation:none}}

/* A native modal contains keyboard focus, including the embedded document. */
.space-panel{width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;color:var(--text)}.space-panel::backdrop{background:#030711}

.space-panel-header{position:relative;overflow:hidden;box-shadow:0 4px 35px #4bcfff16}
.space-panel-header:after{content:"";position:absolute;bottom:0;left:-30%;width:30%;height:1px;background:linear-gradient(90deg,transparent,#69e9ff,#b573ff,transparent);animation:portal-stream 7s linear infinite}
.mini-core{position:relative;display:inline-grid;place-items:center;flex:0 0 38px;width:38px;height:38px}
.mini-core:before,.mini-core:after{content:"";position:absolute;inset:1px;border:1px solid #75d7ff66;border-radius:50%;transform:rotateX(60deg) rotateZ(25deg);animation:portal-orbit 9s linear infinite}
.mini-core:after{border-color:#e186ff77;animation-direction:reverse;animation-duration:13s}
@keyframes portal-stream{to{left:130%}}@keyframes portal-orbit{to{transform:rotateX(60deg) rotateZ(385deg)}}
@media(prefers-reduced-motion:reduce){.space-panel-header:after,.mini-core:before,.mini-core:after{animation:none}}