/* Time Dilation Lab · experimental visual theatre · scoped, responsive, no external assets */
.td-page{--cyan:#8de4d6;--blue:#66c5ee;--gold:#e8bb86;--ink:#081521;--rule:#2b4c59;max-width:100%;color:#e5f0ec;overflow:hidden}.td-page *{box-sizing:border-box}.td-page :is(button,input,select){font:inherit}.td-wrap{width:min(1510px,calc(100% - 68px));margin-inline:auto}.td-page .td-kicker{font-size:11px;letter-spacing:.23em;font-weight:700;text-transform:uppercase;color:#9ed9d5}.td-page h1,.td-page h2,.td-page h3{font-family:var(--display,Georgia,serif);font-weight:400}.td-page p{line-height:1.8}.td-page a{color:#9ae8dc}.td-page a:hover{text-decoration-color:#f0c38c}.td-page :is(button,input,a,summary):focus-visible{outline:3px solid #fbd49c;outline-offset:4px}.td-page [hidden]{display:none!important}
.td-hero{position:relative;isolation:isolate;padding:94px 0 82px;background:radial-gradient(ellipse at 82% 28%,#21465a 0%,transparent 47%),radial-gradient(ellipse at 20% 100%,#123243 0%,transparent 55%),linear-gradient(150deg,#07131e,#0d2131 65%,#07131b);border-bottom:1px solid #294955}.td-hero:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.4;background-image:radial-gradient(circle,#bde6ef 1px,transparent 1.5px);background-size:79px 83px;mask-image:linear-gradient(to right,transparent 10%,black)}.td-hero-grid{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr);gap:44px;align-items:center}.td-crumb{font-size:12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:#c4d4d9}.td-crumb a{color:#bde6df}.td-hero h1{font-size:clamp(52px,6.1vw,103px);letter-spacing:-.055em;line-height:1.03;margin:27px 0}.td-hero h1 em{font-style:normal;color:var(--cyan)}.td-deck{font-size:clamp(17px,1.4vw,21px);max-width:745px;color:#bed2d6;line-height:1.85!important}.td-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:27px}.td-action,.td-page button{transition:background .2s,border-color .2s,transform .2s;cursor:pointer}.td-action{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:14px 19px;border:1px solid #648994;border-radius:5px;background:#102f3e;color:#e3faf4!important;text-decoration:none;font-size:13px;font-weight:700;letter-spacing:.03em}.td-action:hover{background:#214b58}.td-action.ghost{background:transparent}.td-hero-art{min-height:350px;position:relative;display:grid;place-items:center}.td-hero-art:before{content:"";position:absolute;width:min(390px,95%);aspect-ratio:1;border:1px solid #76bdcb6b;border-radius:50%;box-shadow:0 0 0 34px #6dc5d511,0 0 0 73px #6dc5d509,0 0 95px #51bfc735, inset 0 0 80px #3aa2ab28}.td-hero-art:after{content:"";position:absolute;width:96%;height:70%;border:1px solid #7198a742;border-radius:50%;transform:rotate(-28deg)}.td-hero-art svg{width:min(460px,100%);height:auto;filter:drop-shadow(0 10px 43px #56c8c82b)}.td-hero-art .orb{animation:td-rotate 42s linear infinite;transform-origin:50% 50%}@keyframes td-rotate{to{transform:rotate(360deg)}}
.td-intro{padding:65px 0 35px;display:grid;grid-template-columns:1fr 1.15fr;gap:50px}.td-intro h2,.td-sectionhead h2{font-size:clamp(37px,4.4vw,70px);line-height:1.08;letter-spacing:-.035em;margin:18px 0}.td-intro h2 em,.td-sectionhead h2 em{font-style:normal;color:var(--cyan)}.td-intro p{max-width:760px;color:#c5d5d7;margin:0 0 18px}.td-theatre{padding:20px 0 75px}.td-control-shell{border:1px solid #355563;background:linear-gradient(145deg,#0e2533,#081a27);box-shadow:0 18px 65px #0004}.td-modebar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:19px 22px;border-bottom:1px solid var(--rule)}.td-modebar .td-mode-label{font-size:11px;letter-spacing:.15em;font-weight:700;margin-right:14px;color:#adc7ca}.td-page button{border:1px solid #49717d;border-radius:5px;background:#153240;color:#dceeea;padding:11px 16px;min-height:45px;font-size:13px}.td-page button:hover{border-color:#a1e6dd;background:#24505b}.td-page 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10px}.td-select{display:block;width:100%;background:#0b2432;border:1px solid #527481;color:#e2f5ee;border-radius:4px;padding:12px;margin-top:10px}.td-scene-group{min-width:0}.td-scene-top{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;padding:15px 20px;background:#081823;border-bottom:1px solid var(--rule)}.td-scene-top span{font-size:10px;letter-spacing:.17em;text-transform:uppercase;color:#bad2d3}.td-scene-top strong{font-size:11px;color:#e7bb83;letter-spacing:.04em}.td-canvas-wrap{position:relative;background:#06131f;overflow:hidden}.td-canvas-wrap canvas{display:block;width:100%;aspect-ratio:16/9;max-height:700px}.td-canvas-wrap:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 75px #050e1688}.td-stage-chip{position:absolute;left:20px;top:19px;background:#071d2ad9;border:1px solid #57798775;padding:8px 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strong{display:block;color:#c4fff0;font:normal clamp(24px,2.6vw,40px)/1.2 var(--display);margin:9px 0;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.td-number:nth-child(2) strong{color:#f1c494}.td-number small{color:#9db6b9;font-size:11px;line-height:1.6;display:block}.td-spark{height:4px;background:#163e47;margin-top:19px;overflow:hidden}.td-spark i{display:block;width:0;height:100%;background:#a1eada;transition:width .2s}.td-number:nth-child(2) .td-spark i{background:#e8b57d}.td-diagram-wrap{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin:26px 0}.td-data-panel{padding:24px;background:#0a202c;border:1px solid #315360;min-width:0}.td-data-panel h3{font-size:26px;margin:7px 0 12px}.td-data-panel p{color:#abc5ca;font-size:13px;max-width:730px}.td-data-panel canvas{display:block;width:100%;aspect-ratio:2/1;background:#071825;border:1px solid #294753;margin:16px 0}.td-data-panel .td-formula{font-size:15px;color:#dbede8;font-weight:600;line-height:1.9}.td-example{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center;border-top:1px solid #274854;padding:72px 0}.td-example h2{font-size:clamp(33px,4vw,60px);margin:16px 0}.td-example p{color:#bbd0d2;line-height:1.85}.td-clock-model{min-width:0;padding:14px;border:1px solid #2e5661;background:radial-gradient(circle at 50% 25%,#153746,#06131e);border-radius:8px}.td-clock-model svg{display:block;width:100%;height:auto}
/* Keep CSS layout independent of the high-DPI canvas backing store. */
.td-clock-model canvas{display:block;width:100%;height:auto;aspect-ratio:2/1}.td-readmore{padding:50px 0 65px;border-top:1px solid #284952}.td-readmore h2{font-size:clamp(32px,4vw,55px)}.td-readmore>p{max-width:930px;color:#bbd0d2}.td-readmore-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:33px 0}.td-info{background:linear-gradient(140deg,#0b2635,#0b1b28);border:1px solid #31515e;padding:27px;min-width:0}.td-info .td-index{color:var(--cyan);font-size:11px;letter-spacing:.18em}.td-info h3{font-size:27px;margin:11px 0}.td-info p{color:#b5cbcc;font-size:14px}.td-info a{font-weight:700;text-decoration:underline;text-underline-offset:4px}.td-method{padding:35px 0 70px}.td-method details{border-top:1px solid #315260;padding:14px 0}.td-method summary{cursor:pointer;padding:10px 0;font-size:17px;line-height:1.7;min-height:46px}.td-method p,.td-method li{color:#bcd0d3;line-height:1.85}.td-related{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.td-related a{display:inline-flex;padding:13px 17px;border:1px solid #406575;color:#c5ece4;text-decoration:none}.td-visual-note{font-size:12px;color:#a7c2c7;max-width:1100px}.td-live{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.td-page .newsletter-band{margin-top:35px}
@media(max-width:1100px){.td-controlgrid{grid-template-columns:1fr}.td-controls{border-right:0;border-bottom:1px solid var(--rule)}.td-controls-inner{display:grid;grid-template-columns:1fr 1fr;gap:12px 27px}.td-presets{align-self:end}.td-hero-grid{gap:15px}}
@media(max-width:760px){.td-wrap{width:calc(100% - 38px)}.td-hero{padding:58px 0 45px}.td-hero-grid,.td-intro,.td-example,.td-diagram-wrap{grid-template-columns:1fr}.td-hero-art{min-height:220px;order:-1}.td-hero-art svg{max-width:285px}.td-hero-art:before{max-width:245px}.td-hero h1{font-size:clamp(46px,11vw,70px)}.td-intro{padding:45px 0 24px;gap:12px}.td-controlgrid{grid-template-columns:1fr}.td-controls-inner{grid-template-columns:1fr}.td-controls{padding:20px}.td-canvas-wrap canvas{aspect-ratio:5/4}.td-numbers{grid-template-columns:1fr}.td-number{padding:18px 20px}.td-number strong{font-size:30px}.td-readmore-grid{grid-template-columns:1fr}.td-example{gap:17px;padding:50px 0}.td-scenetop{padding:12px}.td-modebar{padding:16px}.td-page button{padding:10px 12px}}
@media(prefers-reduced-motion:reduce){.td-hero-art .orb{animation:none}.td-page *{transition:none!important;scroll-behavior:auto!important}}
@media print{.td-page{color:#111!important}.td-hero,.td-info,.td-control-shell,.td-data-panel{background:white!important;color:#111!important}.td-theatre canvas{display:none!important}.td-controls{display:none!important}.td-page :is(p,h1,h2,h3,strong){color:#111!important}}




/* Release 322: self-contained cinematic preview and scene cards; no network image required. */
.td-landing-media{position:relative;display:flex;overflow:hidden;min-height:360px;max-width:1100px;aspect-ratio:16/8.4;margin:20px 0 28px;padding:clamp(22px,4.5vw,54px);border:1px solid #416b78;border-radius:9px;text-decoration:none!important;isolation:isolate;background:radial-gradient(ellipse at 75% 45%,#1a526176,transparent 48%),radial-gradient(circle at 15% 80%,#163d5188,transparent 55%),#061827;box-shadow:0 24px 60px #0006;transition:border-color .2s ease,transform .2s ease}
.td-landing-media:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.55;background:radial-gradient(circle,#b6e8ec99 1px,transparent 1.7px) 0 0/79px 83px,radial-gradient(circle,#addce699 1px,transparent 1.8px) 20px 30px/129px 109px}
.td-landing-media:hover{border-color:#a9e9dc;transform:translateY(-2px)}
.td-promo-copy{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:22px;width:55%;min-width:0;color:#e9f5f0}
.td-promo-copy small{font-size:clamp(10px,1vw,15px);letter-spacing:.14em;font-weight:700;color:#a2e5dc}
.td-promo-copy strong{font-family:var(--display,Georgia,serif);font-size:clamp(35px,5.9vw,83px);font-weight:600;line-height:1.02;letter-spacing:-.045em}
.td-promo-copy strong em{font-style:normal;color:#a4efe1}
.td-promo-copy>span{font-size:clamp(11px,1.25vw,16px);letter-spacing:.1em;color:#dec29a}
.td-promo-copy .td-promo-url{font-size:clamp(10px,1vw,13px);letter-spacing:.015em;color:#b6d5d8;overflow-wrap:anywhere}
.td-promo-clock{position:absolute;right:1.5%;top:50%;width:47%;max-height:106%;transform:translateY(-50%);filter:drop-shadow(0 0 40px #4de5db3a)}
.td-highlights,.td-highlight-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.td-highlights{padding:6px 0 32px}
.td-highlight-card{min-width:0;padding:26px;background:linear-gradient(145deg,#0c2a39,#081b29);border:1px solid #355c67;box-shadow:0 12px 35px #0004}
.td-highlight-card .td-index{color:#97e6db;font-weight:700;letter-spacing:.13em;font-size:11px}
.td-highlight-card h3{font-size:clamp(21px,2.1vw,28px);line-height:1.2;margin:12px 0}
.td-highlight-card p{color:#bbd0d2;font-size:14px;line-height:1.8;margin:0}
.td-landing-media:focus-visible{outline:3px solid #fbd49c;outline-offset:4px}
@media(max-width:760px){.td-highlights,.td-highlight-grid{grid-template-columns:1fr}.td-landing-media{min-height:290px;aspect-ratio:1.5/1}.td-promo-copy{width:67%;gap:12px}.td-promo-clock{right:-9%;width:57%;opacity:.63}.td-promo-copy strong{font-size:clamp(34px,7.7vw,56px)}.td-promo-copy small{font-size:10px}.td-promo-copy>span{font-size:10px;letter-spacing:.03em}}
@media(prefers-reduced-motion:reduce){.td-landing-media{transition:none}.td-landing-media:hover{transform:none}}