/* Editorial rhythm shared by the static shell and the on-demand laboratory. */
:root{--bg:#090c13;--premium-ink:#171c28;--premium-muted:#606879;--premium-mint:#91e5d3;--premium-lilac:#c2abf4}
html{scroll-padding-top:28px}body{background:#090c13}.app-shell{overflow:clip}.section-inner{width:min(1280px,88%)}
.experience-section:not(.hero-section){padding:82px 0 92px}.experience-section{scroll-margin-top:20px}
.experience-section.light-section{background:#fff;color:var(--premium-ink)}
.experience-section.dark-section{background-color:#090c13;color:#f4f5fb}
.experience-section:not(.hero-section)::before{filter:none}
.chapter-heading,.requirements-heading{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:50px;margin-bottom:38px}
.chapter-heading h2,.catalogue-title-row h2,.bounds-heading h2{font-size:clamp(2rem,3.3vw,3.1rem);font-weight:500;letter-spacing:-.045em;line-height:1.13;margin:0}
.chapter-heading>p,.requirements-heading>p{margin:0;padding:2px 0 0;max-width:560px;font-size:1rem;line-height:1.75;color:#abb5c7}
.light-section .chapter-heading>p{color:var(--premium-muted)}.heading-dot{color:#a384d3}.dark-section .heading-dot{color:var(--premium-mint)}
.section-next{margin-top:30px;padding-top:22px;font-size:.95rem}.light-section .section-next{color:#684485}
.primary{background:linear-gradient(110deg,#b43191,#7965b1);border:1px solid #d99de735;box-shadow:0 9px 28px #ab3b9924;transition:transform .2s,box-shadow .2s}
.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 30px #af47903d}.primary:focus-visible{outline:3px solid #a4e8e1;outline-offset:5px}

/* A deliberately compact opening, without a header or a sticky navigation. */
.hero-section{min-height:0;padding:0 0 32px;background:radial-gradient(ellipse at 80% 38%,#192737 0,transparent 51%),#090c13;isolation:isolate;overflow:hidden}
.hero-section>.section-inner{position:relative;z-index:1}.mission-hero{grid-template-columns:1fr 1fr;gap:30px;min-height:0;padding:38px 0 22px;align-items:center}
.hero-copy .eyebrow{font-size:.62rem;letter-spacing:.2em;margin:0 0 25px;color:#c7b5dd}.hero-copy h1{font-size:clamp(2.9rem,4.2vw,4rem);line-height:1.04;margin:0;letter-spacing:-.055em;font-weight:500}
.hero-subtitle{font-size:clamp(1.5rem,2.35vw,2.15rem);letter-spacing:-.035em;color:#cfc4e6;line-height:1.25;margin:13px 0 0}
.hero-context{font-size:1.1rem;color:#aeb5c5;line-height:1.5;margin:8px 0 0}.hero-intro{font-size:.95rem;line-height:1.8;margin:23px 0 0;max-width:440px;color:#b7c0ce}
.hero-actions{margin-top:23px;gap:0}.hero-actions .primary{padding:15px 20px;font-size:.93rem;min-height:50px;border-radius:10px}
.hero-orbit{min-height:340px;height:340px}.hero-orbit .rocket-stage{height:330px;width:58%;top:0;left:18%;filter:drop-shadow(0 0 25px #89bee126);animation:premium-rocket-drift 9s ease-in-out infinite;animation-play-state:paused}
.hero-orbit .moon-disc{width:225px;height:225px;top:30px;right:14%;opacity:.68}.hero-orbit .orbit-ring{max-width:90%;max-height:75%;opacity:.52}.hero-orbit .orbit-coord{font-size:.55rem;line-height:1.9;left:0;top:28px;color:#8296ad}
.hero-orbit .orbit-target{bottom:53px;right:0;top:auto;font-size:.54rem;letter-spacing:.12em;color:#a1b5c5;text-align:right}.hero-orbit .orbit-target strong{font-size:2.55rem;font-weight:400;letter-spacing:-.07em;color:#ecedf5;margin:7px 0}.hero-orbit .orbit-target strong small{font-size:.87rem;letter-spacing:0}.hero-orbit .orbit-target i{font-size:.67rem;color:#afbdcb}
.hero-orbit .orbital-caption{font-size:.5rem;letter-spacing:.08em;bottom:4px;left:4%;color:#788b9f}
.hero-facts{padding:22px 0 0;margin:0;gap:25px;border-top:1px solid #c6d4e320}.hero-facts>div>strong{font-size:1.8rem;letter-spacing:-.04em;color:#dbe3ed}.hero-facts>div>span{font-size:.55rem;color:#94a2b4;letter-spacing:.11em;margin-top:7px}.hero-facts a{font-size:.8rem;color:#cbbee0}
.hero-facts .hero-utilities{display:flex;align-items:flex-end;flex-direction:column;justify-content:center;gap:11px}.motion-toggle{font-size:.65rem;color:#9caabc;padding:5px 0;background:none;border:0;border-radius:0;cursor:pointer;min-height:25px;white-space:nowrap}.motion-toggle:hover{color:#fff}.motion-toggle:focus-visible{outline:2px solid var(--premium-mint);outline-offset:5px}.motion-toggle[hidden]{display:none}
.ambient-light{position:absolute;inset:0;overflow:hidden;z-index:0;pointer-events:none}.ambient-light i{position:absolute;width:65%;height:100%;left:25%;top:-20%;background:radial-gradient(ellipse,#8d60bd20,transparent 66%);animation:ambient-drift 18s ease-in-out infinite alternate;animation-play-state:paused}.ambient-light i+i{left:55%;top:10%;background:radial-gradient(ellipse,#33cbb018,transparent 64%);animation-delay:-8s;animation-duration:24s}
.hero-section.is-in-view .ambient-light i,.hero-section.is-in-view .rocket-stage{animation-play-state:running}
@keyframes ambient-drift{from{transform:translate(-7%,2%) scale(.95)}to{transform:translate(13%,12%) scale(1.18)}}
@keyframes premium-rocket-drift{0%,100%{transform:translateY(0) rotate(21deg)}50%{transform:translateY(-9px) rotate(23deg)}}

/* Requirements live beside the animated illustration, apart from the data. */
.brief-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center}.brief-illustration{min-width:0;background:radial-gradient(ellipse at 50% 50%,#f0f4fa,transparent 66%)}
.brief-layout .instruction-flow{display:grid;grid-template-columns:1fr;gap:0;margin:0;padding:0;border:0}.brief-layout .instruction-flow article{display:grid;grid-template-columns:37px 1fr;gap:19px;padding:21px 0;border-top:1px solid #e5e8ee}.brief-layout .instruction-flow article:first-child{padding-top:4px;border:0}.brief-layout .instruction-flow article:last-child{padding-bottom:0}
.brief-layout .instruction-flow .rule-number{position:static;display:block;font-size:.7rem;letter-spacing:.07em;font-weight:500;padding-top:4px;color:#9176b3}.brief-layout .instruction-flow h3{margin:0 0 9px;font-size:1.15rem;font-weight:500;letter-spacing:-.02em}.brief-layout .instruction-flow p{margin:0;font-size:.9rem;line-height:1.7;color:var(--premium-muted);max-width:none}.brief-layout .instruction-flow strong{font-weight:600;color:#353d50}
.catalogue-section-dark{background:radial-gradient(ellipse at 87% 64%,#172133,transparent 58%),#090c13}.catalogue-title-row{margin-bottom:28px}.catalogue-section-dark .catalogue-title-row p{color:#a8b4c7;margin-top:15px;max-width:650px;font-size:.94rem}
.catalogue-section-dark .catalogue-invitation h3{font-size:1.35rem;letter-spacing:-.02em;margin:8px 0 14px;font-weight:500}
.catalogue-section-dark .static-model-preview{display:block;width:100%;height:205px;object-fit:contain;border-radius:10px;margin:0 0 17px;background:radial-gradient(ellipse,#233c47,#0d1723);border:1px solid #9ab8c424}

/* The data and control surfaces retain their behaviour and gain a common palette. */
.workshop-section{background:radial-gradient(ellipse at 80% 45%,#1c1630,transparent 54%),#090c13}.method-strip{gap:0;margin:0 0 30px;border-top:1px solid #8194b32b;border-bottom:1px solid #8194b32b}.method-strip>div{padding:25px 27px;border:0;border-right:1px solid #8194b32b;background:none;border-radius:0}.method-strip>div:first-child{padding-left:0}.method-strip>div:last-child{border-right:0}.method-strip span{font-size:.7rem;color:#bfa5df;margin-bottom:12px}.method-strip strong{font-size:1.12rem;letter-spacing:-.025em;font-weight:500}.method-strip p{color:#9eaac0;font-size:.86rem;margin:10px 0 0;line-height:1.6}
.engine-activation{background:linear-gradient(120deg,#151c28,#12151e);border:1px solid #bcc0d424;border-radius:16px;padding:32px;display:grid;grid-template-columns:1fr auto;gap:16px 30px;align-items:center;text-align:left;margin-top:20px}.engine-activation h3{margin:0 0 8px;font-size:1.4rem;font-weight:500}.engine-activation p{margin:0;font-size:.95rem;color:#a8b4c5;line-height:1.7}.engine-activation [data-engine-status]{grid-column:1/-1;font-size:.75rem;color:#8899ae}
.workshop-section .laboratory{border-color:#8296b42b;background:linear-gradient(145deg,#101823,#10151d)}.atelier-pane{background:transparent}.simulation-pane{background:linear-gradient(150deg,#182434,#101720)}.workshop-section .panel-heading h2,.workshop-section .simulation-pane h2{font-size:1.65rem;line-height:1.2;letter-spacing:-.035em;margin:0}.workshop-section .experiment-bar{background:#111824;border-color:#859cbb26}.workshop-section select,.workshop-section input:not([type=range]){background-color:#111a26;border-color:#768cad40;color:#e5e9f0}.workshop-section option{background:#111a26}
.proof-section .proof-preview{border-color:#e4e7ee;background:linear-gradient(120deg,#fff,#f4f7fb);border-radius:14px;padding:28px 32px}.proof-section .proof-preview h3{margin:0 0 9px;font-size:1.3rem;font-weight:500}.proof-section .proof-preview p{color:#697385}.proof-section .section-heading h3{font-size:1.3rem;letter-spacing:-.025em;font-weight:500;margin:0}.proof-section .section-heading{margin:0 0 24px}.light-section .results-table th{background:#f3f5f9}.proof-section .protocol-title h3{font-size:1.7rem;line-height:1.2}.proof-section .code-feature{background:#f3f5fa}.proof-section .import-area{background:#f5f6fa}.light-section .method-notes{background:transparent}
.contact-section{background:radial-gradient(ellipse at 50% 90%,#38204877,transparent 62%),#090c13}.contact-inner>h2{font-size:clamp(2.3rem,4.3vw,4.1rem);line-height:1.12;letter-spacing:-.05em;margin:0}.contact-inner>p{font-size:1.04rem;line-height:1.8;max-width:600px;margin:27px auto}.contact-bottom{margin-top:60px;border-color:#7a8b9e30}.contact-bottom a{color:#adbad0;font-size:.7rem}.site-footer{background:#090c13;border-color:#74829720;font-size:.65rem;gap:20px}

/* Progressive enhancement: content remains visible when JS or observers fail. */
.reveal-pending{opacity:0;transform:translateY(18px)}.reveal-ready{transition:opacity .65s ease,transform .65s cubic-bezier(.22,1,.36,1)}.reveal-ready.is-revealed{opacity:1;transform:none}
.motion-paused .ambient-light i,.motion-paused .rocket-stage,.motion-suspended .ambient-light i,.motion-suspended .rocket-stage,.motion-suspended .wv-motion{animation-play-state:paused!important}
.motion-paused .reveal-pending{opacity:1;transform:none}.motion-paused .reveal-ready{transition:none}
@media(min-width:1600px){.mission-hero{padding-top:48px;padding-bottom:30px}.hero-orbit{height:370px;min-height:370px}.hero-orbit .rocket-stage{height:355px}.hero-orbit .moon-disc{width:260px;height:260px}}
@media(max-width:1050px){.hero-copy h1{font-size:3.15rem}.hero-subtitle{font-size:1.7rem}.hero-orbit .orbit-coord{display:none}.hero-orbit .orbit-target{right:-5px}.hero-orbit .rocket-stage{left:4%;width:67%}.hero-facts{gap:18px}.hero-facts>div>span{font-size:.49rem}.brief-layout{gap:28px;grid-template-columns:.9fr 1.1fr}.chapter-heading{gap:30px}.method-strip>div{padding:22px 18px}}
@media(max-width:760px){.section-inner{width:88%}.experience-section:not(.hero-section){padding:67px 0 78px}.chapter-heading,.requirements-heading{grid-template-columns:1fr;gap:20px;margin-bottom:29px}.chapter-heading>p{font-size:.95rem;max-width:none}.chapter-heading h2,.catalogue-title-row h2,.bounds-heading h2{font-size:2.1rem}.mission-hero{gap:8px}.hero-copy h1{font-size:2.8rem}.hero-subtitle{font-size:1.45rem}.hero-intro{font-size:.86rem}.hero-orbit{height:300px;min-height:300px}.hero-orbit .rocket-stage{height:280px}.hero-orbit .moon-disc{width:160px;height:160px}.hero-orbit .orbit-target{font-size:.45rem;bottom:18px}.hero-orbit .orbit-target strong{font-size:2rem}.hero-orbit .orbital-caption{display:none}.hero-facts{grid-template-columns:repeat(3,1fr)}.hero-facts .hero-utilities{grid-column:1/-1;flex-direction:row;justify-content:space-between;align-items:center}.brief-layout{grid-template-columns:1fr;gap:35px}.brief-illustration{max-width:550px;width:100%;margin:0 auto}.brief-layout .instruction-flow article{padding:20px 0}.method-strip{grid-template-columns:1fr}.method-strip>div,.method-strip>div:first-child,.method-strip>div:last-child{padding:21px 0;border:0;border-bottom:1px solid #8194b326}.method-strip>div:last-child{border-bottom:0}.method-strip span{margin-bottom:7px}.engine-activation{grid-template-columns:1fr;padding:25px;gap:22px}.engine-activation .primary{justify-self:start}.contact-bottom{gap:20px}.site-footer{align-items:flex-start}.bounds-heading>p{font-size:.95rem}}
@media(max-width:580px){.hero-section{padding-bottom:40px}.mission-hero{display:grid;grid-template-columns:1fr;padding:35px 0 10px;gap:0}.hero-copy .eyebrow{font-size:.55rem;margin-bottom:23px}.hero-copy h1{font-size:3rem}.hero-subtitle{font-size:1.6rem}.hero-context{font-size:1rem}.hero-intro{font-size:.89rem;margin-top:20px}.hero-actions{margin-top:20px}.hero-orbit{height:235px;min-height:235px;margin:6px 0 0}.hero-orbit .rocket-stage{height:225px;left:12%;width:54%}.hero-orbit .moon-disc{width:145px;height:145px;right:23%;top:24px}.hero-orbit .orbit-target{right:1%;bottom:45px}.hero-facts{padding-top:19px;gap:18px 13px}.hero-facts>div>strong{font-size:1.55rem}.hero-facts>div>span{font-size:.46rem;line-height:1.6;letter-spacing:.06em}.hero-facts .hero-utilities{margin-top:2px}.hero-facts a{font-size:.74rem}.chapter-heading h2,.catalogue-title-row h2,.bounds-heading h2{font-size:1.9rem}.brief-layout{gap:27px}.brief-layout .instruction-flow article{grid-template-columns:27px 1fr;gap:13px}.brief-layout .instruction-flow h3{font-size:1.08rem}.catalogue-section-dark .catalogue-title-row p{font-size:.9rem}.site-footer{flex-direction:column;padding:22px 6%}.contact-inner>p{font-size:.95rem}}
@media(max-width:900px){.catalogue-section-dark .catalogue-table th:last-child,.catalogue-section-dark .catalogue-table td:last-child{position:sticky;right:0;z-index:2;box-shadow:-8px 0 14px #0003}.catalogue-section-dark .catalogue-table th:last-child{z-index:3}.catalogue-section-dark .catalogue-table td:last-child{background:#0d131d}.catalogue-section-dark .catalogue-table .selected-row td:last-child{background:#172d3d}}
/* Larger mission opening, precise title rules, and an explanatory workshop. */
.hero-section{padding-bottom:38px;background:radial-gradient(ellipse at 76% 45%,#213147 0,transparent 53%),radial-gradient(ellipse at 15% 15%,#2a193536,transparent 50%),#090c13}
.mission-hero{min-height:530px;padding:44px 0 30px;gap:35px}.hero-copy .eyebrow{margin-bottom:32px;letter-spacing:.2em;color:#bdafd1;font-size:.67rem}.hero-copy h1{font-size:clamp(3.7rem,5.3vw,5rem);font-weight:450;letter-spacing:-.06em}.hero-subtitle{font-size:clamp(1.75rem,2.65vw,2.6rem);margin-top:18px}.hero-context{font-size:1.14rem;margin-top:10px}.hero-intro{font-size:1rem;line-height:1.8;margin-top:27px;max-width:475px}.hero-actions{margin-top:30px}
.hero-orbit{height:450px;min-height:450px}.hero-orbit .rocket-stage{height:425px;left:15%;width:63%;top:-5px;filter:drop-shadow(0 0 36px #91bbe930)}.hero-orbit .moon-disc{width:290px;height:290px;right:8%;top:56px;opacity:.78}.hero-orbit .orbit-ring{max-height:90%;max-width:98%;opacity:.64}.hero-orbit .orbit-coord{top:30px;font-size:.61rem;line-height:1.95;color:#9cafc3}.hero-orbit .orbit-target{bottom:64px;right:-4px;font-size:.59rem;line-height:1.7}.hero-orbit .orbit-target strong{font-size:3.1rem}.hero-orbit .orbit-target i{font-size:.74rem}.hero-orbit .orbital-caption{bottom:2px;left:0;font-size:.56rem;letter-spacing:.085em}
.hero-facts{padding:25px 0 0;gap:30px}.hero-facts>div>strong{font-size:2.1rem}.hero-facts>div>span{font-size:.58rem;line-height:1.7}.ambient-light i{background:radial-gradient(ellipse,#bb77e62d,transparent 65%)}.ambient-light i+i{background:radial-gradient(ellipse,#44d5c020,transparent 65%)}
.hero-actions .mission-launch{display:inline-flex;gap:16px;align-items:center;background:linear-gradient(120deg,#202431d9,#292437c7);border:1px solid #b99dc559;box-shadow:0 12px 30px #0004,inset 0 1px 0 #fff1;padding:15px 17px;border-radius:16px;min-width:300px;color:#f7f3ff;position:relative}
.hero-actions .mission-launch:hover{border-color:#cbb2e0;box-shadow:0 12px 32px #b779c523,inset 0 1px 0 #fff2;background:linear-gradient(120deg,#2c3043,#332741)}.mission-launch .launch-mark{display:grid;place-items:center;width:37px;height:37px;color:#c4aadf;border:1px solid #bca3d038;border-radius:11px;background:#bda3df0b}.launch-mark svg{width:19px;height:19px;fill:currentColor;stroke:none}.mission-launch .launch-copy{font-size:.99rem;font-weight:550;line-height:1.4}.mission-launch .launch-copy small{display:block;font-size:.67rem;font-weight:400;color:#aeaec2;letter-spacing:.02em;margin-top:3px}.mission-launch .launch-arrow{width:34px;height:34px;display:grid;place-items:center;flex-shrink:0;margin-left:auto;font-size:1.25rem;border-radius:50%;background:linear-gradient(140deg,#d9bce9,#95c9da);color:#242637}
.section-heading-lined{position:relative;padding:0 0 26px;margin:0 0 36px;display:block!important;border-bottom:1px solid #dde5ed}.section-heading-lined::after{content:"";position:absolute;bottom:-2px;left:0;height:4px;width:180px;max-width:40%;background:linear-gradient(90deg,#319a97,#a686d2,#efb1a0);border-radius:8px;box-shadow:0 3px 12px #9871c524}.section-heading-lined h2{margin:0 0 16px;letter-spacing:-.04em;font-size:clamp(2.1rem,3.25vw,3.25rem);font-weight:500;line-height:1.13}.section-heading-lined p,.requirements-heading>p{font-size:1.04rem;max-width:830px;line-height:1.75;margin:0;padding:0;color:#626d7f}.requirements-heading strong{font-weight:550;color:#344858}
.catalogue-title-row.section-heading-lined{display:flex!important;gap:35px;align-items:center;border-color:#a3b6d026;padding-bottom:27px;margin-bottom:33px}.catalogue-title-row.section-heading-lined::after{width:255px;background:linear-gradient(90deg,#88d7cc,#a89adc,#b67bc0)}.catalogue-section-dark .catalogue-title-row p{font-size:1rem;color:#abb9cd;max-width:820px;margin-top:0}.catalogue-title-row h2{margin-bottom:16px}.catalogue-file-links a{font-size:.85rem}
.brief-layout{display:flex;flex-direction:column;gap:30px}.brief-illustration{width:100%;max-width:none!important;background:none;margin:0}.brief-layout .instruction-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;width:100%;margin-top:0}.brief-layout .instruction-flow article,.brief-layout .instruction-flow article:first-child,.brief-layout .instruction-flow article:last-child{padding:25px 22px;border:1px solid #e1e8ef;border-top:3px solid #7dcbbb;border-radius:15px;display:block;background:linear-gradient(145deg,#f4fbf9,#fff 62%);position:relative}.brief-layout .instruction-flow article:nth-child(2){border-top-color:#a0bde6;background:linear-gradient(145deg,#f3f7fe,#fff 62%)}.brief-layout .instruction-flow article:nth-child(3){border-top-color:#c0a7df;background:linear-gradient(145deg,#f9f4fd,#fff 62%)}.brief-layout .instruction-flow .rule-number{display:grid;place-items:center;position:static;padding:0;margin-bottom:15px;width:30px;height:30px;border:1px solid #afd8cc;border-radius:9px;color:#428276;font-size:.7rem;background:#edf8f3}.brief-layout .instruction-flow article:nth-child(2) .rule-number{color:#6486b2;border-color:#ccdaef;background:#ecf2fa}.brief-layout .instruction-flow article:nth-child(3) .rule-number{color:#9675ba;border-color:#dfd2ed;background:#f1eafa}.brief-layout .instruction-flow h3{font-size:1.18rem;margin-bottom:10px}.brief-layout .instruction-flow p{font-size:.9rem;line-height:1.7;color:#616e7e}
@media(min-width:1600px){.mission-hero{padding:60px 0 40px;min-height:585px}.hero-orbit{height:475px;min-height:475px}.hero-orbit .rocket-stage{height:460px}.hero-orbit .moon-disc{width:330px;height:330px}.hero-intro{font-size:1.08rem}.section-heading-lined p,.requirements-heading>p{font-size:1.13rem}.brief-layout .instruction-flow p{font-size:1rem}}
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