@font-face{font-family:Voyage;src:url('/fonts/ltct-noto-sans-kr-450-e719ef95d88a.woff') format('woff');font-style:normal;font-weight:100 900;font-display:swap}
:root{color-scheme:dark;--bg:#080b13;--panel:#101620;--ink:#eeeae1;--dim:#a5acb9;--line:#ffffff20;--gold:#e8c387;--font:16px}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:20px}body{margin:0;background:var(--bg);color:var(--ink);font:var(--font)/1.7 Voyage,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;word-break:keep-all;overflow-wrap:anywhere;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,summary,select{cursor:pointer}button,a,summary,input{touch-action:manipulation}button{min-height:44px}button:disabled{opacity:.35;cursor:default}button,a,summary,input,select{outline-offset:5px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--gold)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:fixed;top:-100px;left:12px;z-index:200;background:#fff;color:#111;padding:12px}.skip:focus{top:10px}.wrap{width:min(1440px,calc(100% - 64px));margin:auto}.topbar{background:#faf8f3;color:#30343a;position:relative;z-index:100}.topbar>.wrap{display:flex;min-height:68px;align-items:center;justify-content:space-between;gap:16px}.brand{text-decoration:none;letter-spacing:.05em;font-size:15px;font-weight:800}.brand small{font-size:11px;display:block;letter-spacing:0;color:#747771}.header-actions{display:flex;align-items:center;gap:10px}.series-link{font-size:14px;text-decoration:none}.intro{padding:36px 0 27px;display:flex;align-items:end;justify-content:space-between;gap:24px}.eyebrow{color:var(--gold);font-size:11px;letter-spacing:.18em;font-weight:700;margin-bottom:9px}.intro h1{font-size:clamp(28px,3.5vw,44px);font-weight:500;line-height:1.4;letter-spacing:-.06em}.intro h1 em{font-style:normal;color:var(--gold)}.intro p:last-child{max-width:410px;color:#b8bbc6;font-size:14px;line-height:1.85}.voyage{border:1px solid #5c657544;border-radius:16px;overflow:hidden;background:#0a0e17;box-shadow:0 24px 80px #0005}.scene-layout{display:grid;grid-template-columns:minmax(0,1fr) 345px;min-height:490px}.space{position:relative;min-width:0;isolation:isolate;min-height:490px;background:#070b12;overflow:hidden}canvas{display:block;width:100%;height:100%;position:absolute;inset:0}.space-top{position:absolute;top:24px;left:26px;right:26px;display:flex;justify-content:space-between;gap:15px;pointer-events:none}.running-label{font-size:11px;letter-spacing:.1em;color:#aeb8c9;display:flex;gap:8px;align-items:center}.running-label:before{content:'';width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}.counter{font:12px/1.5 monospace;color:#b6bfcd}.scene-caption{position:absolute;bottom:30px;left:28px;right:26px;max-width:620px;text-shadow:0 2px 16px #000;pointer-events:none}.scene-caption .kicker{font-size:11px;color:#9da9ba;letter-spacing:.1em;margin-bottom:7px}.scene-caption p{font-size:clamp(16px,1.7vw,22px);font-weight:500;line-height:1.65;max-width:550px}.diagram-label{position:absolute;right:22px;bottom:12px;color:#a1adbc;font-size:10px;opacity:.9}.info{background:linear-gradient(145deg,#151c29,#10141f);border-left:1px solid var(--line);padding:28px 26px;display:flex;flex-direction:column;justify-content:center;gap:15px;min-width:0}.tag{font-size:11px;letter-spacing:.02em;color:var(--gold)}.info h2{font-size:26px;font-weight:550;line-height:1.55;letter-spacing:-.045em}.scale{font-size:13px;color:#b7c4d8;border-bottom:1px solid var(--line);padding-bottom:16px}.explanation{font-size:15px;line-height:1.9;color:#d3d8df}.insight{border-left:2px solid var(--gold);padding-left:13px;font-size:13px;line-height:1.85;color:#aeb9ca}.info-link{font-size:12px;color:var(--gold);text-decoration:none;display:inline-block;padding:7px 0}.telemetry{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 28px;background:#0e141e}.metric small{display:block;font-size:10px;color:#93a0b3;margin-bottom:3px;letter-spacing:.03em}.metric strong{font-weight:500;font-size:21px;letter-spacing:-.03em;line-height:1.5;font-variant-numeric:tabular-nums}.metric:last-child strong{font-size:15px;color:var(--gold)}.control-deck{padding:18px 26px 17px}.transport{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.transport button,.transport select{border:1px solid #384253;border-radius:7px;color:#e7eaf0;background:#182130;padding:8px 14px;font-size:13px;min-height:44px}.transport .launch{background:var(--gold);border-color:var(--gold);color:#252020;min-width:136px;font-weight:750}.transport .icon-button{padding:7px 12px;font-size:18px}.transport select{padding-right:26px}.transport label{font-size:12px;color:#b4becc;display:flex;gap:7px;align-items:center;margin-left:auto}.transport input[type=checkbox]{accent-color:var(--gold);width:16px;height:16px}.timecode{display:flex;justify-content:space-between;gap:10px;color:#8d9bad;font-size:11px;font-variant-numeric:tabular-nums;margin-top:12px}.timeline{accent-color:var(--gold);width:100%;height:28px;display:block;margin:0}.assumption{color:#9aa6b7;font-size:11px;line-height:1.8;padding:0 26px 18px;max-width:1100px}.assumption strong{color:#c4ccd7;font-weight:500}.below{padding:23px 0 60px}.route-map{border-bottom:1px solid var(--line);padding-bottom:22px}.route-map>summary{font-size:14px;color:#c8cdd8;padding:10px 0;min-height:44px;display:flex;align-items:center;justify-content:space-between;list-style:none}.route-map>summary:after{content:'+';font-size:23px;color:var(--gold)}.route-map[open]>summary:after{content:'−'}.route-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;padding-top:13px}.waypoint{display:flex;align-items:center;gap:11px;text-align:left;background:#111824;border:1px solid #283141;border-radius:8px;color:#c8cfda;padding:12px;min-height:68px;min-width:0}.waypoint:hover{background:#1b2431}.waypoint[aria-current=true]{background:#29271f;border-color:#a58b5f;color:#f4dfbb}.waypoint .num{color:#807867;font:11px monospace;flex:none}.waypoint span:last-child{min-width:0}.waypoint b{display:block;font-size:12px;font-weight:600}.waypoint small{font-size:10px;color:#8e9aab}.reading{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-top:42px}.reading h2{font-size:24px;font-weight:550;letter-spacing:-.04em;line-height:1.6;margin-bottom:15px}.reading p{color:#bbc4d1;font-size:15px;line-height:1.95}.detail-card{padding:0 0 20px}.detail-card .eyebrow{font-size:10px;color:var(--gold);margin-bottom:8px}.source-links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:16px}.source-links a{color:#bca77e;font-size:12px;min-height:35px}.mini-legend{display:flex;gap:16px;flex-wrap:wrap;margin:10px 0 15px;color:#a6b2c3;font-size:12px}.mini-legend span:before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--gold);margin-right:7px}.mini-legend span:last-child:before{background:#747896}.expansion-chart{position:relative;background:#101725;border:1px solid #293548;border-radius:9px;padding:22px 20px 12px;min-height:180px;overflow:hidden}.expansion-chart .axis-title{font-size:10px;color:#96a7bb;margin-bottom:22px}.track{height:4px;background:#343d53;position:relative;margin:42px 0 20px}.horizon-marker{position:absolute;left:36.3%;top:-32px;height:45px;border-left:1px dashed #a99a74}.horizon-marker span{position:absolute;left:5px;top:-4px;font-size:9px;color:#b2a27e;white-space:nowrap}.travelled{width:0;max-width:100%;height:4px;background:var(--gold);position:relative;box-shadow:0 0 10px #e8c38745}.travelled:after{content:'';position:absolute;right:-5px;top:-4px;width:11px;height:11px;border-radius:50%;background:#fff1ce;box-shadow:0 0 15px #e8c387}.axis-numbers{position:relative;height:20px;color:#8997ab;font-size:10px}.axis-numbers span{position:absolute;transform:translateX(-50%)}.axis-numbers span:first-child{left:0;transform:none}.axis-numbers span:nth-child(2){left:21.739%}.axis-numbers span:nth-child(3){left:43.478%}.axis-numbers span:nth-child(4){left:65.217%}.axis-numbers span:last-child{right:0;transform:none}.lab-controls{display:flex;gap:15px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:17px 0 9px}.switch{border:1px solid #9a855b;color:#e8d1a9;background:#27251f;border-radius:20px;padding:6px 15px;font-size:12px;min-height:38px}.switch[aria-pressed=false]{background:#141c28;border-color:#425068;color:#c0cad8}.lab-controls label{font-size:12px;color:#b7c5d4}.lab-output{display:flex;align-items:baseline;justify-content:space-between;gap:15px;margin:10px 0 14px}.lab-output strong{font-size:22px;font-weight:500;color:var(--gold)}.lab-output span{font-size:12px;color:#9cabbd}.lab-note{font-size:12px!important;color:#8e9db0!important;margin-top:10px}.knowledge{border-top:1px solid var(--line);padding-top:30px;margin-top:35px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px}.knowledge h3{font-size:16px;font-weight:550;color:#e2d3b7;margin-bottom:10px}.knowledge p{font-size:13px;line-height:1.9;color:#9aa8bb}.all-sources{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:#91a1b5;font-size:12px}.all-sources summary{padding:9px 0;min-height:44px}.all-sources ol{columns:2;padding-left:20px;line-height:2}.all-sources li{break-inside:avoid;margin-bottom:8px}.closing-nav{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;padding-top:28px;font-size:13px;color:#b0b9c5}.foot{font-size:11px;color:#65748a;padding:0 0 35px}.noscript{padding:20px;border:1px solid #aaa;color:#eee}.complete-message{background:#242521;color:#eeddb8;padding:15px 26px;font-size:14px;border-top:1px solid #6c5b39}.complete-message a{margin-left:12px;white-space:nowrap}
@media(min-width:1500px){.scene-layout{min-height:550px}.space{min-height:550px}.info{padding:32px}.intro{padding-top:44px}}
@media(max-width:1050px){.wrap{width:calc(100% - 40px)}.scene-layout{grid-template-columns:minmax(0,1fr) 300px;min-height:460px}.space{min-height:460px}.info{padding:24px 22px;gap:12px}.info h2{font-size:23px}.explanation{font-size:14px}.intro p:last-child{max-width:330px;font-size:12px}.reading{gap:30px}.route-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.wrap{width:calc(100% - 28px)}.intro{display:block;padding:26px 4px 22px}.intro h1{font-size:32px}.intro p:last-child{max-width:100%;margin-top:13px;font-size:13px}.scene-layout{display:block;min-height:0}.space{min-height:360px;height:360px}.info{border-left:0;border-top:1px solid var(--line);padding:22px;gap:10px}.info h2{font-size:24px}.scale{padding-bottom:10px}.explanation{font-size:15px}.info-link{padding:4px 0}.telemetry{padding:16px 20px;gap:12px;grid-template-columns:1fr 1fr}.metric:last-child{display:block}.metric strong{font-size:18px}.transport label{margin-left:0;width:100%;font-size:12px}.control-deck{padding:16px 18px}.assumption{padding:0 18px 18px;font-size:10px}.scene-caption{left:22px;bottom:30px}.scene-caption p{font-size:18px}.space-top{top:18px;left:20px;right:20px}.reading{grid-template-columns:1fr;gap:28px;padding-top:30px}.knowledge{grid-template-columns:1fr;gap:25px}.all-sources ol{columns:1}.header-actions .series-link{display:none}.topbar>.wrap{min-height:62px}.route-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.waypoint{padding:10px 8px;gap:6px;align-items:start}.waypoint b{font-size:11px}.waypoint .num{font-size:9px;margin-top:4px}.brand{font-size:13px}.brand small{font-size:10px}.voyage{border-radius:12px}.transport button,.transport select{font-size:12px;padding:8px 11px}.transport .launch{min-width:122px}}
@media(max-width:430px){.space{height:300px;min-height:300px}.scene-caption p{font-size:16px;max-width:280px}.scene-caption .kicker{font-size:10px}.info{padding:20px 18px}.info h2{font-size:22px}.route-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.waypoint b{font-size:12px}.telemetry{padding-inline:17px}.metric strong{font-size:16px}.transport{gap:6px}.transport .launch{min-width:115px}.transport .icon-button{padding:7px 10px}.intro h1{font-size:30px}.lab-output{display:block}.lab-output span{display:block;margin-top:3px}.horizon-marker span{font-size:8px}.series-link{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:#fff;color:#000}.topbar,.space,.control-deck,.timeline,.route-map,.lab-controls,.closing-nav{display:none}.wrap{width:100%}.scene-layout,.reading,.knowledge{display:block}.info,.voyage,.telemetry{background:#fff;border:1px solid #aaa;color:#000}.reading p,.info p{color:#222}.source-links a{color:#333}}

.canvas-start{position:absolute;left:50%;top:51%;transform:translate(-50%,-50%);border:1px solid #e8c38788;border-radius:40px;padding:12px 22px;background:#171c28d9;color:#f5dfb8;font-size:15px;box-shadow:0 0 40px #0006;min-height:50px;backdrop-filter:blur(5px)}.canvas-start span{margin-left:7px}.canvas-start:hover{background:#e8c387;color:#211c17}

/* A single persistent distance scale stays beside the moving scene. */
.space{--rail-width:132px}
.space canvas{left:var(--rail-width);width:calc(100% - var(--rail-width))}
.distance-rail{position:absolute;z-index:2;inset:0 auto 0 0;width:var(--rail-width);padding:21px 14px 16px;background:#0d1420f5;border-right:1px solid #6d7e9630;display:flex;flex-direction:column}
.distance-rail>p{font-size:11px;color:#b5c0cf;letter-spacing:.02em}
.distance-rail>strong{display:block;color:#f2d3a1;font-size:18px;line-height:1.6;font-weight:550;font-variant-numeric:tabular-nums;min-height:29px}
.distance-note{font-size:9px;color:#92a2b6;min-height:30px;line-height:1.5}
.rail-track{position:relative;flex:1;border-left:1px solid #53647d;min-height:210px;margin:14px 0 20px 3px}
.rail-fill{position:absolute;left:-1px;top:0;width:1px;height:0;background:#e8c387}
.rail-tick{position:absolute;left:10px;transform:translateY(-50%);color:#9aa9bc;font-size:10px;line-height:1;white-space:nowrap}
.rail-tick:before{content:'';position:absolute;width:5px;height:1px;background:#697890;left:-11px;top:50%}
.rail-marker{position:absolute;top:0;left:-4px;width:7px;height:7px;border-radius:50%;transform:translateY(-50%);background:#ffe3ae;box-shadow:0 0 12px #e8c38799}
.distance-rail>small{font-size:9px;color:#8b9db2;line-height:1.4}
.space-top{left:calc(var(--rail-width) + 22px)}
.scene-caption{left:calc(var(--rail-width) + 22px);right:24px;bottom:35px}
.scene-caption h2{font-size:clamp(20px,2.2vw,29px);line-height:1.4;font-weight:550;letter-spacing:-.035em;color:#f6e5c8;margin-bottom:8px}
.scene-caption p#caption{font-size:14px;line-height:1.8;color:#ced5df;font-weight:400;max-width:510px}
.scene-caption .kicker{font-size:10px;margin-bottom:8px}
.running-label[data-phase=arrived]{color:#f2d3a1}
.arrival-note{font-size:11px;color:#a5b2c4;margin-left:auto}
.canvas-start{left:calc(50% + var(--rail-width)/2);top:43%}
@media(min-width:761px) and (max-width:1050px){.space{--rail-width:110px}.distance-rail{padding-inline:11px}.distance-rail>strong{font-size:16px}.scene-caption{left:calc(var(--rail-width) + 16px);right:16px}.scene-caption p#caption{font-size:13px}.scene-caption h2{font-size:21px}}
@media(max-width:760px){.space{--rail-width:104px;height:420px;min-height:420px}.distance-rail{padding:18px 10px 14px}.distance-rail>strong{font-size:16px}.distance-rail>p{font-size:10px}.distance-note{font-size:8px}.rail-tick{font-size:9px;left:8px}.rail-tick:before{left:-9px}.distance-rail>small{font-size:8px}.space-top{left:calc(var(--rail-width) + 15px);right:16px}.scene-caption{left:calc(var(--rail-width) + 15px);right:16px;bottom:34px}.scene-caption h2{font-size:21px;margin-bottom:7px}.scene-caption p#caption{font-size:13px;line-height:1.8}.scene-caption .kicker{font-size:9px;letter-spacing:0}.counter{font-size:10px}.running-label{font-size:10px;letter-spacing:0}.running-label:before{width:4px;height:4px}.arrival-note{width:100%;margin:4px 0 0}.metric:last-child strong{font-size:13px}}
@media(max-width:430px){.space{--rail-width:94px;height:420px;min-height:420px}.distance-rail{padding-inline:8px}.distance-rail>strong{font-size:14px}.scene-caption h2{font-size:19px}.scene-caption p#caption{font-size:12px}.scene-caption{left:calc(var(--rail-width) + 13px);right:13px}.space-top{left:calc(var(--rail-width) + 13px);right:13px}.diagram-label{right:11px;font-size:8px}.metric:last-child strong{font-size:12px}.metric small{font-size:9px}}