:root{--bg:#07162c;--bg2:#0a1c35;--panel:#0d203a;--panel2:#102642;--line:#29425f;--text:#f6f2ea;--muted:#b9b1c7;--teal:#68d9ce;--cyan:#6dbbf3;--lav:#ba9cff;--gold:#ffd06c;--red:#ff8079;--shadow:0 22px 50px rgba(0,0,0,.22);--radius:28px;--max:1450px;--focus:0 0 0 4px rgba(104,217,206,.28)}*{box-sizing:border-box}html{background:var(--bg);color-scheme:dark;scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 82% -5%,#14284b 0,transparent 34%),linear-gradient(180deg,#06152b,#071a31 55%,#06152b);color:var(--text);font-family:Inter,ui-rounded,"Segoe UI",system-ui,-apple-system,sans-serif;line-height:1.45;min-height:100vh}body.high-contrast{--panel:#061327;--panel2:#07172c;--line:#6f88a8;--muted:#e6e0ed}body.focus-mode .secondary-detail,body.focus-mode .fidget-dock,body.focus-mode .orbit-decoration{display:none!important}body.reduce-motion *,body.reduce-motion *::before,body.reduce-motion *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{color:inherit}.site{max-width:var(--max);margin:auto;padding:24px 34px 120px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:34px}.brand{display:flex;align-items:center;gap:14px;font-weight:750;letter-spacing:.24em;font-size:1.55rem}.brand-mark{width:46px;height:46px;border:2px solid var(--teal);border-radius:50%;position:relative}.brand-mark::before{content:"";position:absolute;inset:9px -7px;border:2px solid var(--lav);border-radius:50%;transform:rotate(-32deg)}.brand-mark::after{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--gold);right:2px;top:-2px;box-shadow:0 0 18px rgba(255,208,108,.4)}.top-actions{display:flex;align-items:center;gap:10px}.pill,.button,.icon-btn,.nav-link,.chip,.tab{border:1px solid var(--line);background:rgba(16,38,66,.78);border-radius:999px;padding:12px 18px;cursor:pointer}.pill:hover,.button:hover,.chip:hover,.tab:hover,.nav-link:hover{border-color:#58728f;background:#132d4d}.button.primary,.chip.active,.tab.active{background:linear-gradient(135deg,rgba(104,217,206,.2),rgba(186,156,255,.18));border-color:var(--teal)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:none;box-shadow:var(--focus)}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin:16px 0 28px}.page-head h1{font-size:clamp(2.8rem,6vw,5.5rem);line-height:.98;margin:0 0 12px;letter-spacing:-.04em}.page-head p{font-size:1.15rem;color:#d0b9ea;margin:0;max-width:760px}.spark{color:var(--gold)}.panel{background:linear-gradient(145deg,rgba(13,32,58,.94),rgba(9,27,50,.9));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{padding:30px;margin-bottom:22px}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:1.45fr .75fr}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}.module-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.module-card{min-height:220px;padding:24px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;position:relative}.module-card img{width:100%;height:92px;object-fit:cover;border-radius:18px;margin-bottom:16px}.module-card h3{font-size:1.35rem;margin:0 0 8px}.module-card p{color:var(--muted);margin:0}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.78rem;color:var(--teal);font-weight:700}.muted{color:var(--muted)}.value{font-variant-numeric:tabular-nums}.bottom-nav{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);width:min(92vw,980px);padding:8px;display:grid;grid-template-columns:repeat(6,1fr);gap:5px;z-index:20;backdrop-filter:blur(18px);background:rgba(11,28,51,.88)}.nav-link{text-align:center;border-color:transparent;background:transparent;padding:11px 9px}.nav-link.active{background:#142f50;color:var(--teal)}.section-title{display:flex;align-items:end;justify-content:space-between;gap:12px;margin:30px 0 14px}.section-title h2{margin:0;font-size:1.6rem}.section-title p{margin:0;color:var(--muted)}.searchbar{min-width:min(430px,48vw);display:flex;gap:8px}.field{width:100%;padding:14px 16px;background:#091b33;border:1px solid var(--line);border-radius:18px;color:var(--text)}.scale-track{padding:28px 18px;overflow:hidden}.scale-row{position:relative;display:flex;align-items:flex-start;gap:6px;overflow-x:auto;padding:28px 8px 12px;scrollbar-width:thin}.scale-row::before{content:"";position:absolute;left:48px;right:48px;top:101px;height:3px;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold))}.scale-node{min-width:142px;text-align:center;z-index:1;cursor:pointer;border:0;background:none;color:inherit}.scale-node .orb{width:96px;height:96px;margin:auto auto 16px;border-radius:50%;background:#122a47;border:1px solid #365576;display:grid;place-items:center;font-size:2.8rem;box-shadow:0 0 0 7px var(--bg2)}.scale-node.active .orb{border-color:var(--lav);box-shadow:0 0 0 7px var(--bg2),0 0 26px rgba(186,156,255,.45)}.scale-node strong{display:block;font-size:1.05rem}.scale-node small{color:#c1b9cd}.detail-card{padding:28px}.detail-hero{display:grid;grid-template-columns:220px 1fr;gap:26px;align-items:center}.detail-visual{min-height:190px;border-radius:24px;background:#0a1d36;display:grid;place-items:center;font-size:6rem;border:1px solid var(--line);overflow:hidden}.detail-visual img{width:100%;height:100%;object-fit:cover}.fact-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.fact{padding:12px 14px;border:1px solid var(--line);background:#0a1b33;border-radius:16px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:9px 13px}.metric{padding:20px}.metric strong{display:block;font-size:2rem;margin-top:4px}.log-ruler{position:relative;height:100px;margin:10px 0 4px}.log-ruler .axis{position:absolute;left:4%;right:4%;top:42px;height:3px;background:#647892}.log-ruler .tick{position:absolute;top:34px;width:2px;height:20px;background:#7e91aa}.log-ruler .tick label{position:absolute;top:29px;transform:translateX(-50%);white-space:nowrap;color:var(--muted)}.log-ruler .marker{position:absolute;top:32px;width:22px;height:22px;border-radius:50%;transform:translateX(-50%);background:var(--lav);box-shadow:0 0 0 5px var(--bg2)}.big-number{text-align:center;padding:34px}.big-number h2{font-size:clamp(4rem,11vw,9.5rem);line-height:.9;margin:14px 0}.notation{font-size:clamp(2.4rem,6vw,5rem);color:var(--lav);font-family:Cambria Math,Georgia,serif}.viz-stage{min-height:300px;padding:24px;display:grid;place-items:center}.dot-grid{display:grid;grid-template-columns:repeat(20,10px);gap:6px;justify-content:center}.dot-grid i{width:9px;height:9px;border-radius:50%;background:var(--gold)}.compare-zone{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.compare-slot{min-height:320px;padding:22px;text-align:center}.compare-slot .compare-icon{font-size:6rem;margin:22px}.compare-slot select{width:100%}.ruler-wrap{padding:24px}.range{width:100%;accent-color:var(--teal)}.unit-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.unit-button{padding:12px 8px;text-align:center;border:1px solid var(--line);background:#0a1c34;border-radius:16px;cursor:pointer}.unit-button.active{background:#225c68;border-color:var(--teal)}.converter{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}.count-stage{padding:18px;min-height:520px;display:grid;place-items:center}.stadium{width:min(93%,850px);aspect-ratio:1.7;border:15px solid #293e59;border-radius:50%;box-shadow:inset 0 0 0 28px #0b1d34,inset 0 0 0 31px #52617c;display:grid;grid-template-columns:repeat(36,1fr);gap:4px;padding:56px;overflow:hidden}.stadium i{aspect-ratio:1;border-radius:50%;background:linear-gradient(145deg,var(--teal),var(--lav));opacity:.14;transform:scale(.6)}.stadium i.on{opacity:.9;transform:scale(1)}.progress{height:18px;background:#1e3550;border-radius:20px;overflow:hidden}.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--lav));transition:width .2s ease}.space-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.space-card{padding:16px;cursor:pointer}.space-card.selected{border-color:var(--lav);box-shadow:0 0 0 2px rgba(186,156,255,.16)}.planet{width:130px;height:130px;border-radius:50%;margin:8px auto 14px;display:grid;place-items:center;font-size:4rem;background:#122a47}.planet.earth{background:radial-gradient(circle at 35% 30%,#70d7a2 0 15%,transparent 16%),radial-gradient(circle at 70% 55%,#70d7a2 0 18%,transparent 19%),linear-gradient(145deg,#3ca7d0,#174a8c)}.planet.sun{background:radial-gradient(circle at 38% 34%,#fff0a0,#ffc14a 20%,#eb721f 58%,#bc3e12);box-shadow:0 0 35px rgba(255,193,74,.35)}.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding:34px 8px}.timeline::before{content:"";position:absolute;left:4%;right:4%;top:102px;height:3px;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold),var(--lav))}.time-node{text-align:center;z-index:1;border:0;background:none;color:inherit;cursor:pointer}.time-node .time-orb{width:80px;height:80px;border-radius:50%;display:grid;place-items:center;margin:auto auto 20px;background:#122a47;border:1px solid #3d5876;font-size:2.3rem;box-shadow:0 0 0 7px var(--bg2)}.time-node.active .time-orb{border-color:var(--lav);box-shadow:0 0 0 7px var(--bg2),0 0 28px rgba(186,156,255,.35)}.pattern-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.pattern-card{padding:24px;min-height:210px}.sequence{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin-top:22px}.bubble{min-width:42px;min-height:42px;border-radius:50%;display:grid;place-items:center;background:#183554;border:1px solid #55738f}.dictionary-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.term-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-height:650px;overflow:auto;padding-right:5px}.term-button{text-align:left;padding:14px;border-radius:16px;border:1px solid var(--line);background:#0a1b33;color:inherit;cursor:pointer}.term-button.active{border-color:var(--teal);background:#10334d}.spectrum{height:90px;border-radius:18px;background:linear-gradient(90deg,#30135d,#3846bd,#2f93e8,#37cba0,#f3dc51,#ff8b35,#e53f51);position:relative}.spectrum .pointer{position:absolute;top:-8px;bottom:-8px;width:4px;background:#fff;border-radius:4px;left:50%}.wave-canvas,.resolution-canvas{width:100%;height:250px;background:#08192f;border:1px solid var(--line);border-radius:20px}.controls-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.article-card{padding:22px}.article-card h3{font-size:1.35rem}.article-body{max-width:840px;margin:auto;padding:34px}.article-body h1{font-size:clamp(2.5rem,6vw,5rem);line-height:1;margin-top:0}.article-body p{font-size:1.15rem;color:#ded8e5}.sources{padding:20px}.source-link{display:block;padding:12px;border-top:1px solid var(--line);color:#d2c7df}.settings-list{display:grid;gap:10px}.setting-row{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px;align-items:center;padding:18px}.setting-row h3{margin:0 0 4px}.setting-row p{margin:0;color:var(--muted)}.toggle{width:62px;height:34px;border-radius:999px;border:1px solid var(--line);background:#23374e;position:relative;cursor:pointer}.toggle::after{content:"";position:absolute;width:26px;height:26px;border-radius:50%;background:#eee8df;top:3px;left:4px;transition:.2s}.toggle.on{background:#3b918d}.toggle.on::after{left:30px}.fidget-dock{position:fixed;right:20px;bottom:98px;z-index:30}.fidget-button{width:58px;height:58px;border-radius:50%;border:1px solid #52718f;background:#102b49;color:var(--teal);font-size:1.7rem;cursor:pointer;box-shadow:var(--shadow)}.fidget-panel{position:absolute;right:0;bottom:70px;width:310px;padding:18px;display:none}.fidget-panel.open{display:block}.beads{display:flex;gap:6px;align-items:center;padding:12px 0}.bead{width:29px;height:29px;border-radius:50%;background:var(--lav);cursor:grab;box-shadow:inset -5px -6px 10px rgba(0,0,0,.22)}.bead:nth-child(2n){background:var(--teal)}.bead:nth-child(3n){background:var(--gold)}.bubble-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}.bubble-pop{aspect-ratio:1;border-radius:50%;border:1px solid #526f8a;background:#163451;cursor:pointer}.bubble-pop.popped{background:#06152b;box-shadow:inset 0 0 0 4px #0a233c}.toast{position:fixed;right:24px;bottom:105px;background:#143151;border:1px solid #4b6684;border-radius:18px;padding:14px 18px;z-index:100}.footer-note{text-align:center;color:var(--muted);margin:34px 0 10px}.empty{padding:60px;text-align:center}.hidden{display:none!important}@media(max-width:1100px){.module-grid{grid-template-columns:repeat(3,1fr)}.grid.two,.dictionary-layout{grid-template-columns:1fr}.grid.three{grid-template-columns:1fr 1fr}.grid.four{grid-template-columns:1fr 1fr}.space-grid{grid-template-columns:repeat(3,1fr)}.article-grid{grid-template-columns:1fr 1fr}.controls-grid{grid-template-columns:1fr 1fr}.setting-row{grid-template-columns:1fr 1fr}.setting-row .preview{grid-column:1/-1}}@media(max-width:760px){.site{padding:18px 14px 110px}.top-actions .label{display:none}.searchbar{display:none}.page-head h1{font-size:3rem}.module-grid,.grid.three,.grid.four,.compare-zone,.space-grid,.pattern-grid,.article-grid{grid-template-columns:1fr}.detail-hero{grid-template-columns:1fr}.detail-visual{min-height:150px}.unit-grid{grid-template-columns:repeat(3,1fr)}.converter{grid-template-columns:1fr}.bottom-nav{grid-template-columns:repeat(6,1fr);width:97vw}.nav-link{font-size:.78rem;padding:9px 4px}.timeline{grid-template-columns:1fr 1fr}.timeline::before{display:none}.controls-grid{grid-template-columns:1fr}.term-list{grid-template-columns:1fr}.setting-row{grid-template-columns:1fr}.count-stage{min-height:350px}.stadium{padding:36px;grid-template-columns:repeat(24,1fr);gap:3px}.fidget-dock{right:12px}.space-card{display:grid;grid-template-columns:120px 1fr;align-items:center}.planet{width:100px;height:100px}}@media(max-width:480px){.module-grid{grid-template-columns:1fr 1fr}.module-card{min-height:190px;padding:17px}.module-card img{height:70px}.bottom-nav .nav-link span.label{display:none}.big-number h2{font-size:4.5rem}.timeline{grid-template-columns:1fr}.stadium{grid-template-columns:repeat(18,1fr);padding:30px}.article-body{padding:22px}.fidget-panel{width:290px}}

/* ORBIT v3: multi-representation, cognitive accessibility, number sense, attention, and fidget layers */
body.number-friendly .value,body.number-friendly .number-display-big,body.number-friendly .notation{font-variant-numeric:tabular-nums;letter-spacing:.025em}body.details-light .secondary-detail .fact-row,body.details-light .secondary-detail p:not(:first-of-type){display:none}body.no-stars{background:linear-gradient(180deg,#06152b,#071a31 55%,#06152b)}.utility-actions{display:flex;gap:7px}.utility-pill{padding:9px 13px;font-size:.88rem}.representation-toolbar,.sense-control,.representation-strip{padding:18px 22px;display:flex;gap:14px;align-items:end;flex-wrap:wrap}.representation-toolbar label,.sense-control>div{min-width:220px;flex:1}.representation-strip{align-items:center;justify-content:space-between}.representation-strip>div:first-child{display:grid;gap:2px}.visual-stage{min-height:460px;margin-top:18px;padding:28px;display:grid;place-items:center;overflow:hidden;position:relative}.stage-caption{text-align:center;color:var(--muted);max-width:780px;margin:20px auto 0}.nest-stage{text-align:center;width:100%}.nest-large{width:min(380px,70vw);height:min(380px,70vw);border-radius:50%;margin:auto;background:radial-gradient(circle,#173653,#0b1c35 68%);border:2px solid var(--gold);display:grid;place-items:center;position:relative;font-size:3.2rem}.nest-large>strong{position:absolute;bottom:28px;font-size:1rem}.nest-small{position:absolute;border:2px solid var(--teal);border-radius:50%;background:#0c2b43;display:grid;place-items:center;font-size:1.6rem;box-shadow:0 0 28px rgba(104,217,206,.24)}.fit-stage{width:100%}.fit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(34px,1fr));gap:8px;max-width:900px;margin:auto;align-items:center}.fit-grid i{font-style:normal;min-height:34px;display:grid;place-items:center;border:1px solid #365576;border-radius:10px;background:#0c2743}.human-stage{width:min(950px,100%);display:grid;grid-template-columns:160px 1fr 220px;gap:24px;align-items:center}.human-stick,.object-anchor{text-align:center;display:grid;gap:8px;place-items:center}.human-stick{font-size:5rem}.human-stick span,.object-anchor span{font-size:.95rem;color:var(--muted)}.object-anchor{font-size:5rem}.object-anchor strong{font-size:1.1rem}.ratio-bar{height:32px;border-radius:999px;border:1px solid var(--line);background:#07162c;overflow:hidden}.ratio-bar i{display:block;height:100%;width:calc(var(--r)*100%);background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold));border-radius:inherit}.human-stage .stage-caption{grid-column:1/-1}.travel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;width:min(980px,100%)}.travel-card{padding:24px;border:1px solid var(--line);border-radius:22px;text-align:center;background:#0a1c35;display:grid;gap:7px}.travel-card>span{font-size:3rem}.travel-card small{color:var(--teal)}.power-ladder{display:flex;align-items:end;justify-content:center;gap:8px;min-height:280px;max-width:1100px;overflow-x:auto}.power-step{display:grid;gap:8px;min-width:62px;text-align:center}.power-step i{height:calc(30px + var(--h,1)*10px);min-height:30px;border-radius:12px 12px 4px 4px;background:#173452;border:1px solid #375777}.power-step:nth-child(3n+2) i{height:100px;background:#1c3658}.power-step:nth-child(3n) i{height:150px;background:#25345c}.power-step.selected i{background:linear-gradient(180deg,var(--lav),#483b7a);box-shadow:0 0 24px rgba(186,156,255,.35)}.growth-stage{width:min(900px,100%);display:grid;gap:20px}.growth-stage>div{display:grid;grid-template-columns:120px 160px 1fr;align-items:center;gap:14px}.growth-stage i{height:24px;border-radius:999px;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold))}.number-display-big{font-size:clamp(2.5rem,8vw,6rem);font-weight:760;line-height:1.05}.word-number{color:var(--teal);font-size:1.2rem}.action-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.nasa-figure{margin:0;display:grid;gap:7px}.nasa-media{width:100%;max-height:330px;object-fit:contain;border-radius:20px;background:#02070d}.nasa-figure figcaption{font-size:.75rem;color:var(--muted)}.nasa-figure a{color:var(--teal)}.detail-visual .nasa-figure{width:100%}.detail-visual .nasa-figure figcaption{padding:0 8px 8px}.nasa-banner{padding:18px;display:grid;grid-template-columns:minmax(280px,.9fr) 1fr;gap:22px;align-items:center}.nasa-banner img{width:100%;max-height:250px;object-fit:contain;border-radius:20px;background:#000}.nasa-banner p{color:var(--muted)}.nasa-banner a{color:var(--teal)}.space-media{height:160px;display:grid;place-items:center;overflow:hidden}.space-photo{width:100%;height:100%;object-fit:contain}.sense-control{align-items:center}.sense-input{font-size:2.1rem;font-weight:700}.number-sense-stage{min-height:390px;padding:30px;display:grid;place-items:center}.quantity-groups{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;align-items:center}.quantity-group{width:72px;min-height:72px;border:1px solid #31526f;border-radius:18px;padding:8px;display:grid;grid-template-columns:repeat(5,1fr);gap:4px;position:relative}.quantity-group i{width:8px;height:8px;background:var(--teal);border-radius:50%;align-self:center;justify-self:center}.quantity-group b{position:absolute;right:5px;bottom:3px;font-size:.7rem;color:var(--muted)}.group-more,.remainder-group{padding:18px;border:1px dashed #51708d;border-radius:18px;color:var(--muted)}.remainder-group{display:grid;place-items:center}.remainder-group strong{font-size:2rem;color:var(--gold)}.ten-frames{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.ten-frame{width:112px;display:grid;grid-template-columns:repeat(5,1fr);gap:6px;padding:10px;border:2px solid #3c5874;border-radius:16px}.ten-frame i{aspect-ratio:1;border-radius:50%;border:1px solid #486987}.ten-frame i.on{background:var(--lav);box-shadow:0 0 12px rgba(186,156,255,.3)}.sense-number-line{position:relative;width:min(980px,92%);height:150px}.line-axis{position:absolute;top:70px;left:5%;right:5%;height:4px;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold))}.sense-number-line span{position:absolute;top:90px;transform:translateX(-50%);color:var(--muted)}.sense-number-line i{position:absolute;top:55px;width:32px;height:32px;border-radius:50%;background:var(--gold);transform:translateX(-50%);box-shadow:0 0 0 8px #0a1c35,0 0 28px rgba(255,208,108,.35)}.place-value-grid{display:flex;gap:12px;align-items:stretch;justify-content:center;flex-wrap:wrap}.place-value-grid>div{min-width:110px;padding:16px;border:1px solid var(--line);border-radius:18px;display:grid;place-items:center;gap:5px;background:#0a1c35}.place-value-grid strong{font-size:3rem;color:var(--lav)}.place-value-grid span{color:var(--teal)}.word-stage{text-align:center;display:grid;gap:20px}.word-stage strong{font-size:clamp(1.8rem,5vw,4rem);color:var(--teal)}.visual-summary{padding:16px;border:1px solid var(--line);border-radius:18px;background:#0a1c35;display:grid;gap:6px}.focus-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.focus-mode-card{padding:24px;text-align:left;cursor:pointer}.focus-mode-card.selected{border-color:var(--teal);box-shadow:0 0 0 3px rgba(104,217,206,.12)}.focus-icon{font-size:2.4rem;color:var(--gold)}.focus-mode-card strong{display:block;font-size:1.2rem;margin:12px 0 6px}.focus-mode-card p{color:var(--muted);margin:0}.attention-card{min-height:150px;padding:16px;margin:12px 0;border:1px dashed #45637f;border-radius:20px}.curiosity-object{display:grid;grid-template-columns:80px 1fr;gap:18px}.curiosity-object>span{font-size:4rem}.journey-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.journey-card{padding:18px;border:1px solid var(--line);border-radius:18px;background:#0a1b33;display:grid;gap:6px}.journey-card span{color:var(--muted)}.fidget-full-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.fidget-card{padding:26px;min-height:340px}.full-beads{min-height:160px;display:flex;flex-wrap:wrap;align-content:center}.bead-large{width:46px;height:46px;border:0}.bead.pressed{transform:translateY(7px) scale(.96);filter:brightness(.8)}.big-bubbles{grid-template-columns:repeat(10,1fr);max-width:520px}.number-wheel{width:220px;height:220px;margin:20px auto;border-radius:50%;border:8px solid #365577;background:conic-gradient(var(--teal),var(--lav),var(--gold),var(--cyan),var(--teal));display:grid;place-items:center;color:#07162c;cursor:pointer;box-shadow:inset 0 0 0 34px #0d203a}.number-wheel span{font-size:3rem;color:var(--text);font-weight:750}.number-wheel.wheel-spin{animation:wheelspin .65s ease-out}@keyframes wheelspin{to{transform:rotate(720deg)}}.symmetry-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:5px;max-width:440px;margin:20px auto}.symmetry-grid button{aspect-ratio:1;border:1px solid #3f5e7a;background:#102b48;border-radius:8px}.symmetry-grid button.on{background:var(--lav);box-shadow:0 0 10px rgba(186,156,255,.3)}.fidget-tabs{display:flex;gap:5px;flex-wrap:wrap}.spinner-disc{width:150px;height:150px;border-radius:50%;border:2px solid #456581;background:radial-gradient(circle at center,#0a1b33 0 15%,transparent 16%),conic-gradient(var(--teal),var(--lav),var(--gold),var(--teal));position:relative;display:block;margin:14px auto}.spinner-disc span{position:absolute;left:50%;top:-8px;width:16px;height:16px;border-radius:50%;background:var(--gold)}.spinner-disc.spinning{animation:wheelspin .7s ease-out}.number-roll{display:block;margin:14px auto;width:130px;height:100px;border-radius:24px;border:1px solid var(--line);background:#0a1c35;color:var(--gold);font-size:2.6rem}.space-card{overflow:hidden}.checkpoint-link{display:block;padding:14px;border-radius:18px;background:#0b2742;border:1px solid var(--teal)}
@media(max-width:1100px){.focus-grid{grid-template-columns:repeat(3,1fr)}.journey-grid{grid-template-columns:1fr 1fr}.human-stage{grid-template-columns:130px 1fr 170px}.travel-grid{grid-template-columns:1fr 1fr}.nasa-banner{grid-template-columns:1fr}.fidget-full-grid{grid-template-columns:1fr}}
@media(max-width:760px){.utility-label{display:none}.representation-toolbar,.sense-control{align-items:stretch}.representation-toolbar label{min-width:100%}.human-stage{grid-template-columns:1fr}.human-stage .ratio-bar{width:100%}.travel-grid{grid-template-columns:1fr}.growth-stage>div{grid-template-columns:80px 100px 1fr}.focus-grid,.journey-grid{grid-template-columns:1fr}.fidget-full-grid{grid-template-columns:1fr}.big-bubbles{grid-template-columns:repeat(8,1fr)}.nasa-banner img{max-height:180px}}

/* ORBIT 3.1 — number language, concept learning, expanded visual comparison */
.language-switch{padding:12px 14px;position:sticky;top:76px;z-index:15;background:rgba(7,22,44,.94);backdrop-filter:blur(16px)}
.quick-exponents{margin-top:18px}.language-compare-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.language-compare-cards>div{padding:20px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.025);min-height:150px}.language-compare-cards small,.language-compare-cards span{display:block;color:var(--muted)}.language-compare-cards strong{display:block;font-size:1.35rem;margin:10px 0;color:var(--ink)}
.prefix-ladder{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px}.prefix-node{appearance:none;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025);color:var(--ink);padding:16px 10px;min-height:98px;cursor:pointer;text-align:center}.prefix-node:hover,.prefix-node:focus-visible{border-color:var(--cyan);transform:translateY(-2px)}.prefix-node strong{display:block;font-size:1.7rem;color:var(--cyan)}.prefix-node span,.prefix-node small{display:block}.prefix-node small{color:var(--muted);margin-top:5px}.prefix-ladder.compact{max-height:360px;overflow:auto}
.language-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}.language-table{width:100%;border-collapse:collapse;min-width:680px}.language-table th,.language-table td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left}.language-table th{position:sticky;top:0;background:#0a1d39;color:var(--cyan)}
.multiplier-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(105px,1fr));gap:10px}.multiplier-chip{border:1px solid var(--line);border-radius:16px;padding:14px;background:rgba(255,255,255,.025);color:var(--ink);cursor:pointer}.multiplier-chip span,.multiplier-chip strong{display:block}.multiplier-chip span{color:var(--gold);font-size:1.1rem}.multiplier-chip strong{font-size:1.05rem;margin-top:4px}
.history-timeline{display:grid;gap:14px}.history-stop{display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.02)}.history-stop>span{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--violet));color:#07162c;font-weight:900}.history-stop small{color:var(--gold)}.history-stop h3{margin:4px 0 8px}.history-stop p{margin:0;color:var(--muted)}.source-note{display:flex;gap:12px;align-items:flex-start;padding:16px 20px}.source-note span{color:var(--muted)}
.concept-layout{display:grid;grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:18px}.concept-list{padding:12px;align-self:start;position:sticky;top:90px;max-height:calc(100vh - 150px);overflow:auto}.concept-list-item{width:100%;display:grid;grid-template-columns:1fr auto;gap:4px 10px;text-align:left;padding:14px;border:1px solid transparent;border-radius:16px;background:transparent;color:var(--ink);cursor:pointer}.concept-list-item:hover,.concept-list-item.active{background:rgba(86,225,219,.07);border-color:rgba(86,225,219,.3)}.concept-list-item strong{grid-column:1/2}.concept-list-item small{grid-column:2/3;grid-row:1/3;color:var(--muted);align-self:center}.concept-level{text-transform:uppercase;letter-spacing:.09em;font-size:.67rem;color:var(--gold)}.concept-stage{padding:28px;min-height:610px}.concept-tabs{margin:20px 0}.concept-pane{min-height:400px;border-top:1px solid var(--line);padding-top:24px}.concept-see{display:grid;place-items:center;min-height:370px;text-align:center;gap:18px}.concept-orb{width:min(420px,78vw);aspect-ratio:1;border-radius:50%;display:grid;place-items:center;font-size:clamp(2.2rem,7vw,5.6rem);font-weight:800;background:radial-gradient(circle at 35% 35%,rgba(134,112,255,.28),rgba(86,225,219,.06) 45%,rgba(7,22,44,.2) 72%);border:1px solid rgba(163,141,255,.35);box-shadow:0 0 80px rgba(103,87,255,.12),inset 0 0 70px rgba(86,225,219,.05)}.concept-see p{font-size:1.2rem;max-width:680px}.concept-play{display:grid;gap:22px;padding:20px 4px}.concept-play input[type=range]{width:100%;accent-color:var(--cyan)}.play-output{font-size:clamp(1.4rem,4vw,2.5rem);padding:22px;border-radius:20px;text-align:center;background:rgba(255,255,255,.035);border:1px solid var(--line)}.reading-block{max-width:760px;margin:auto;font-size:1.12rem;line-height:1.75}.practice-card{max-width:760px;margin:auto}.practice-choices{display:grid;gap:12px;margin:22px 0}.practice-choice{padding:18px 20px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025);color:var(--ink);font-size:1.05rem;text-align:left;cursor:pointer}.practice-choice:hover:not(:disabled){border-color:var(--cyan)}.practice-choice.correct{border-color:#77e6bb;background:rgba(119,230,187,.1)}.practice-choice.wrong{border-color:#ff8c9a;background:rgba(255,140,154,.09)}.hint,.feedback-good,.feedback-try{padding:14px 16px;border-radius:14px}.hint{background:rgba(255,206,92,.08);color:#ffe3a1}.feedback-good{background:rgba(119,230,187,.08);color:#bff7df}.feedback-try{background:rgba(255,140,154,.08);color:#ffc4cb}.practice-done{text-align:center;padding:50px 20px}.practice-done>span{font-size:4rem;color:var(--cyan)}
.tower-play{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center}.tower-output{min-height:260px;border:1px solid var(--line);border-radius:24px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:2.4rem;flex-wrap:wrap}.tower-output small{width:100%;text-align:center;color:var(--muted);font-size:.9rem}.wave-demo{height:130px;border-radius:18px;border:1px solid var(--line);overflow:hidden;position:relative;background:linear-gradient(90deg,rgba(86,225,219,.04),rgba(163,141,255,.05))}.wave-demo i{position:absolute;inset:15px;background:repeating-radial-gradient(ellipse at center,transparent 0 7px,rgba(86,225,219,.55) 8px 9px,transparent 10px 18px);filter:blur(.2px)}.pixel-demo{height:270px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(135deg,#153e65,#2f8a77 43%,#a67b45 44% 60%,#294465 61%);position:relative;overflow:hidden}.pixel-demo:after{content:"";position:absolute;inset:0;background-size:var(--pixel) var(--pixel);background-image:linear-gradient(rgba(7,22,44,.24) 1px,transparent 1px),linear-gradient(90deg,rgba(7,22,44,.24) 1px,transparent 1px)}
.scale-model-stage{min-height:390px;display:grid;grid-template-columns:1fr auto 1fr;gap:28px;align-items:center;justify-items:center}.model-token{width:min(260px,34vw);aspect-ratio:1;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;text-align:center;padding:20px;background:radial-gradient(circle,rgba(86,225,219,.12),transparent 65%)}.model-token.large{background:radial-gradient(circle,rgba(163,141,255,.14),transparent 65%)}.model-token>span{font-size:4rem}.model-token strong,.model-token small{display:block}.model-token small{color:var(--muted)}.model-arrow{font-size:3rem;color:var(--gold)}
.walk-stage{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;width:min(900px,100%);margin:auto}.walk-card{border:1px solid var(--line);border-radius:20px;padding:20px;background:rgba(255,255,255,.025)}.walk-card strong,.walk-card span{display:block}.walk-card span{color:var(--muted);margin-top:8px}.walk-track{height:12px;background:rgba(255,255,255,.05);border-radius:99px;overflow:hidden;margin-top:14px}.walk-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--cyan),var(--violet),var(--gold))}
.zoom-ring-stage{width:min(620px,88vw);aspect-ratio:1;position:relative;margin:auto}.zoom-ring{position:absolute;inset:calc(var(--z)*4.3%);border:1px solid color-mix(in srgb,var(--violet) 50%,transparent);border-radius:50%;display:flex;align-items:flex-start;justify-content:center;pointer-events:none}.zoom-ring span{font-size:.75rem;color:var(--muted);background:#07162c;padding:2px 7px;border-radius:10px}.zoom-ring.selected{border-width:3px;border-color:var(--cyan);box-shadow:0 0 35px rgba(86,225,219,.18)}.zoom-ring.selected span{color:var(--cyan)}.zoom-core{position:absolute;inset:43%;display:grid;place-items:center;text-align:center;font-size:2rem}.zoom-core strong{font-size:.7rem;white-space:nowrap}
@media(max-width:900px){.language-compare-cards{grid-template-columns:1fr 1fr}.concept-layout{grid-template-columns:1fr}.concept-list{position:static;max-height:none}.concept-list{display:flex;overflow:auto;gap:8px}.concept-list-item{min-width:210px}.scale-model-stage{grid-template-columns:1fr}.model-arrow{transform:rotate(90deg)}.walk-stage{grid-template-columns:1fr}}
@media(max-width:620px){.language-compare-cards{grid-template-columns:1fr}.history-stop{grid-template-columns:42px 1fr}.concept-stage{padding:18px}.tower-play{grid-template-columns:1fr}.scale-model-stage .model-token{width:68vw}.source-note{display:block}.source-note strong{display:block;margin-bottom:6px}}
.factor-ring{position:relative;width:min(330px,72vw);aspect-ratio:1;margin:18px auto;border:1px solid var(--line);border-radius:50%;background:radial-gradient(circle,rgba(255,206,92,.08),transparent 55%)}.factor-center{position:absolute;inset:38%;display:grid;place-items:center;border-radius:50%;background:rgba(255,206,92,.14);border:1px solid rgba(255,206,92,.45);font-size:1.8rem;font-weight:800}.factor-bead{--rad:125px;position:absolute;left:50%;top:50%;width:66px;height:66px;margin:-33px;border-radius:50%;border:1px solid rgba(163,141,255,.4);background:#11284a;color:var(--ink);transform:rotate(var(--ang)) translateX(var(--rad)) rotate(calc(-1*var(--ang)));cursor:pointer}.factor-bead span{font-size:.72rem}.factor-bead.active{background:rgba(86,225,219,.2);border-color:var(--cyan);box-shadow:0 0 24px rgba(86,225,219,.18)}.orbit-trail{height:320px;border-radius:50%;border:1px solid var(--line);position:relative;overflow:hidden;background:radial-gradient(circle at center,rgba(163,141,255,.08),transparent 60%),repeating-radial-gradient(circle at center,transparent 0 35px,rgba(163,141,255,.09) 36px 37px,transparent 38px 70px);cursor:crosshair}.orbit-trail i{position:absolute;width:13px;height:13px;border-radius:50%;transform:translate(-50%,-50%);background:hsl(calc(175 + var(--d)*19) 70% 67%);box-shadow:0 0 16px currentColor}
@media(max-width:520px){.factor-bead{--rad:100px;width:56px;height:56px;margin:-28px}}
/* v3.1 Number Sense: redundant, dyscalculia-friendly magnitude representations */
.bead-racks{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;align-items:start}.bead-rack,.compression-card{padding:14px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025)}.bead-rack small{display:block;margin-bottom:8px;color:var(--muted)}.bead-row{display:flex;gap:5px;margin:5px 0}.bead-row i,.mini-beads i{display:block;width:13px;height:13px;border-radius:50%;border:1px solid rgba(145,236,225,.34);background:rgba(145,236,225,.06)}.bead-row i.on{background:linear-gradient(145deg,var(--teal),var(--lav));box-shadow:0 0 12px rgba(117,224,213,.18)}.mini-beads{display:flex;flex-wrap:wrap;gap:5px;margin:12px 0}.mini-beads i{background:var(--lav)}
.base10-scene{display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-end;gap:24px;padding:12px}.base10-place{min-width:120px;text-align:center}.base10-place small,.base10-place strong{display:block}.base10-items{min-height:108px;display:flex;flex-wrap:wrap;align-content:flex-end;justify-content:center;gap:6px;padding:8px}.base10-items i{display:block;background:linear-gradient(145deg,rgba(104,221,210,.9),rgba(159,126,237,.8));border:1px solid rgba(255,255,255,.28);box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}.base10-items.type-0 i{width:16px;height:16px;border-radius:4px}.base10-items.type-1 i{width:10px;height:74px;border-radius:5px}.base10-items.type-2 i{width:58px;height:58px;border-radius:7px;background-image:linear-gradient(rgba(255,255,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.13) 1px,transparent 1px),linear-gradient(145deg,rgba(104,221,210,.8),rgba(159,126,237,.72));background-size:10px 10px}.base10-items.type-3 i{width:66px;height:66px;border-radius:10px;transform:skewY(-5deg);box-shadow:8px -7px 0 rgba(159,126,237,.24),inset 0 0 0 1px rgba(255,255,255,.18)}
.sense-number-line{position:relative;height:180px;margin:10px 28px}.sense-number-line .line-axis{position:absolute;left:5%;right:5%;top:80px;height:5px;border-radius:5px;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold))}.sense-number-line span{position:absolute;top:102px;transform:translateX(-50%);color:var(--muted)}.sense-number-line>i{position:absolute;top:58px;width:24px;height:24px;border-radius:50%;transform:translateX(-50%);background:var(--cream);border:6px solid var(--lav);box-shadow:0 0 0 8px rgba(159,126,237,.12)}.sense-number-line>b{position:absolute;top:26px;transform:translateX(-50%);font-size:1.25rem;color:var(--cream)}
.benchmark-stage{padding:38px 44px 18px}.benchmark-track{height:125px;position:relative;border-top:5px solid rgba(255,255,255,.18);margin-top:42px}.benchmark{position:absolute;top:-15px;transform:translateX(-50%);text-align:center}.benchmark i{display:block;width:25px;height:25px;border-radius:50%;background:var(--panel2);border:3px solid var(--teal);margin:auto}.benchmark i.near{background:var(--gold);border-color:var(--cream);box-shadow:0 0 0 10px rgba(243,190,87,.12)}.benchmark span,.benchmark small{display:block;white-space:nowrap;margin-top:7px}.benchmark small{color:var(--muted)}.benchmark-track>em{position:absolute;top:-31px;width:4px;height:62px;background:var(--lav);box-shadow:0 0 16px var(--lav);transform:translateX(-50%)}.benchmark-callout{display:flex;gap:14px;align-items:baseline;justify-content:center}.benchmark-callout strong{font-size:2rem}.benchmark-callout span{color:var(--muted)}
.fill-sense{display:grid;grid-template-columns:minmax(260px,480px) 1fr;gap:28px;align-items:center;padding:22px}.fill-container{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;padding:18px;border:2px solid rgba(255,255,255,.15);border-radius:24px;background:rgba(0,0,0,.12)}.fill-container i{aspect-ratio:1;border-radius:5px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.05)}.fill-container i.on{background:linear-gradient(145deg,var(--teal),var(--lav));box-shadow:0 0 10px rgba(100,220,210,.16)}.fill-sense>div:last-child strong{font-size:clamp(1.6rem,4vw,3rem)}
.symbol-bridge{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:18px;color:var(--muted)}.symbol-bridge span{padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.compare-sense-bars{display:grid;gap:10px;margin-bottom:14px}.compare-sense-bars>div{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:center}.compare-sense-bars i{display:block;height:22px;width:calc(var(--p)*100%);min-width:3px;border-radius:999px;background:linear-gradient(90deg,var(--teal),var(--lav))}.compare-sense-bars>div:nth-child(2) i{background:linear-gradient(90deg,var(--gold),var(--lav))}.comparison-reveal{padding-top:10px;border-top:1px solid var(--line)}
@media(max-width:760px){.fill-sense{grid-template-columns:1fr}.benchmark-stage{padding-inline:25px}.base10-place{min-width:90px}.bead-racks{grid-template-columns:1fr}}
/* v3.1 distraction-light presentation mode for Show It Studio */
.page-actions{display:flex;gap:10px;flex-wrap:wrap}.presentation-exit{position:fixed;right:22px;top:22px;z-index:120}.presentation-view{overflow:hidden;background:#020b18}.presentation-view .topbar,.presentation-view .page-head,.presentation-view .representation-toolbar,.presentation-view .grid.two,.presentation-view .footer-note,.presentation-view .bottom-nav,.presentation-view .fidget-dock{display:none!important}.presentation-view .site{max-width:none;width:100vw;height:100vh;padding:18px;margin:0}.presentation-view main{height:100%}.presentation-view .visual-stage{height:calc(100vh - 36px);min-height:0;margin:0;display:flex;align-items:center;justify-content:center;border-radius:28px;overflow:auto}.presentation-view .visual-stage>div{width:min(1200px,94vw)}.presentation-view .presentation-exit{display:inline-flex!important}.presentation-view .stage-caption{font-size:clamp(1rem,2vw,1.4rem);max-width:900px;margin-inline:auto}.presentation-view .number-display-big{font-size:clamp(3rem,10vw,9rem)}
.thread-trail{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.thread-step{display:grid;grid-template-columns:36px 1fr 24px;gap:10px;align-items:center;padding:13px 14px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);text-decoration:none;color:var(--cream)}.thread-step>span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:rgba(100,220,210,.12);color:var(--teal);font-weight:800}.thread-step small{display:block;color:var(--muted);margin-top:3px}.thread-step>b{color:var(--lav)}.thread-step:hover,.thread-step:focus-visible{border-color:var(--teal);transform:translateY(-1px)}
.source-toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:15px}.source-toolbar>.field{min-width:min(420px,100%);flex:1}.source-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}.source-card{padding:18px;display:flex;flex-direction:column;align-items:flex-start}.source-card p{color:var(--muted);flex:1}.source-kind{font-size:.76rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:6px 9px;border-radius:999px;margin-bottom:10px;border:1px solid var(--line)}.source-kind.standard{color:var(--teal)}.source-kind.research{color:var(--lav)}.source-kind.accessibility{color:var(--gold)}.source-kind.learning{color:#8fd1ff}.source-kind.orientation{color:var(--muted)}
.compare-view-toolbar{padding:14px 16px;margin-bottom:16px}.compare-visual{padding:20px;min-height:260px}.compare-object-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:center;align-items:end}.compare-object-row>div{display:grid;gap:8px;justify-items:center}.compare-orb{display:grid;place-items:center;width:130px;height:130px;border-radius:50%;border:2px solid var(--c);background:radial-gradient(circle,rgba(255,255,255,.08),rgba(255,255,255,.015));font-size:3.5rem}.compare-object-row small{color:var(--muted)}.relative-bars{display:grid;gap:18px;margin-top:20px}.relative-bars>div{display:grid;grid-template-columns:minmax(160px,240px) 1fr 150px;gap:12px;align-items:center}.relative-bars i{height:26px;border-radius:999px;background:linear-gradient(90deg,var(--c),color-mix(in srgb,var(--c) 45%,var(--lav)));box-shadow:0 0 16px rgba(150,130,230,.08)}.relative-bars span{color:var(--muted)}.compare-nest-scene{min-height:360px;display:grid;place-items:center;position:relative}.compare-nest-ring{grid-area:1/1;border-radius:50%;border:3px solid var(--ring);display:grid;place-items:center;background:rgba(7,22,44,.72);box-shadow:0 0 25px color-mix(in srgb,var(--ring) 22%,transparent);position:relative}.compare-nest-ring span{font-size:2.3rem}.compare-nest-ring small{position:absolute;bottom:14px;padding:4px 8px;border-radius:999px;background:rgba(2,11,24,.78)}.ratio-sentence{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}.ratio-sentence b{color:var(--teal);font-size:1.25rem}.ratio-sentence span:last-child{text-align:right}.text-link{color:var(--teal);font-size:.9rem}@media(max-width:760px){.compare-object-row{grid-template-columns:1fr}.relative-bars>div{grid-template-columns:1fr}.compare-orb{width:100px;height:100px}.ratio-sentence{grid-template-columns:1fr}.ratio-sentence span:last-child{text-align:left}}
.trail-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-bottom:18px}.trail-choice{border:1px solid var(--line);padding:16px;display:grid;grid-template-columns:48px 1fr;gap:12px;text-align:left;color:var(--cream);cursor:pointer}.trail-choice>span{font-size:1.8rem}.trail-choice p{margin:4px 0 0;color:var(--muted)}.trail-choice.selected{border-color:var(--teal);background:linear-gradient(135deg,rgba(91,220,208,.08),rgba(157,126,238,.04))}.trail-player{padding:0;overflow:hidden}.trail-progress{height:7px;background:rgba(255,255,255,.05)}.trail-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold));transition:width .25s ease}.trail-player>#trailStep{padding:clamp(22px,4vw,46px)}.trail-step-main{display:grid;grid-template-columns:100px 1fr;gap:26px;align-items:start;max-width:900px;margin:16px auto}.trail-step-icon{display:grid;place-items:center;width:90px;height:90px;border-radius:50%;font-size:2.4rem;background:radial-gradient(circle,rgba(115,225,215,.13),rgba(158,126,237,.06));border:1px solid var(--line)}.trail-step-main h2{font-size:clamp(2rem,5vw,4rem);margin:.1em 0}.trail-step-main p{font-size:1.15rem;line-height:1.65;color:var(--muted)}.trail-dots{display:flex;justify-content:center;gap:9px;margin-top:30px}.trail-dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.12)}.trail-dots i.done{background:var(--teal)}.trail-dots i.on{background:var(--gold);box-shadow:0 0 0 6px rgba(243,190,87,.1)}.trail-controls{display:flex;justify-content:space-between;gap:12px;padding:14px 20px;border-top:1px solid var(--line);background:rgba(0,0,0,.1)}@media(max-width:650px){.trail-step-main{grid-template-columns:1fr}.trail-step-icon{width:72px;height:72px}.trail-controls{flex-wrap:wrap}.trail-controls .button{flex:1}}

.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* ORBIT v3.2 — touch/tablet/phone interaction + publication system */
:root{--touch-min:48px;--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px);--reading:#f4efe6;--ink:#102238}
.gesture-surface{position:relative;touch-action:pan-y;overscroll-behavior-x:contain;-webkit-user-select:none;user-select:none}.gesture-surface::after{content:"swipe";position:absolute;right:12px;bottom:10px;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);opacity:.4;pointer-events:none}.reduce-motion .gesture-surface::after{display:none}.gesture-cycle-controls{display:grid;grid-template-columns:minmax(48px,auto) 1fr minmax(48px,auto);align-items:center;gap:8px;max-width:520px;margin:10px auto 0}.gesture-cycle-controls>span{text-align:center;display:grid;line-height:1.15}.gesture-cycle-controls small{color:var(--muted);font-size:.72rem}.gesture-step,.pinch-controls button{min-width:48px;min-height:48px;border-radius:18px;border:1px solid var(--line);background:#102b49;color:var(--text);font:inherit;cursor:pointer}.pinch-surface{--touch-zoom:1;overflow:hidden}.pinch-surface>.visual-composition,.pinch-surface>.nest-scene,.pinch-surface>.human-stage,.pinch-surface>.scale-model-stage,.pinch-surface>.walk-stage,.pinch-surface>.zoom-rings,.pinch-surface>.growth-stage{transform:scale(var(--touch-zoom));transform-origin:center;transition:transform .15s ease}.pinch-controls{position:absolute;right:12px;top:12px;z-index:6;display:flex;gap:6px;align-items:center;padding:6px;border:1px solid var(--line);border-radius:20px;background:rgba(5,19,37,.88);backdrop-filter:blur(12px)}.pinch-controls output{min-width:58px;text-align:center;font-variant-numeric:tabular-nums}.pinch-controls button:last-child{padding-inline:12px}.tap-ripple{position:absolute;width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,.38);pointer-events:none;transform:translate(-50%,-50%) scale(.2);animation:orbitTap .48s ease-out forwards;z-index:10}@keyframes orbitTap{to{opacity:0;transform:translate(-50%,-50%) scale(5)}}

/* Touch Lab */
.touch-lab-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.touch-experiment{padding:24px;min-height:380px;display:flex;flex-direction:column;gap:18px}.experiment-title{display:grid;grid-template-columns:54px 1fr;gap:12px;align-items:start}.experiment-title>span{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--teal);font-weight:800}.experiment-title h2{margin:0 0 5px;font-size:1.55rem}.experiment-title p{margin:0;color:var(--muted)}.experiment-controls{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;margin-top:auto}.experiment-controls output{text-align:center;color:var(--lav);font-weight:650}.flick-runway{height:160px;position:relative;margin:10px 26px;touch-action:pan-y;outline:none}.flick-track{position:absolute;left:0;right:0;top:70px;height:5px;border-radius:9px;background:linear-gradient(90deg,var(--cyan),var(--teal),var(--lav),var(--gold))}.flick-track i{position:absolute;top:-8px;width:18px;height:18px;border-radius:50%;transform:translateX(-50%);background:#0b2039;border:3px solid rgba(255,255,255,.7)}.flick-track i span{position:absolute;top:25px;left:50%;transform:translateX(-50%);font-size:.7rem;color:var(--muted);white-space:nowrap}.flick-marker{position:absolute;left:27.3%;top:34px;transform:translateX(-50%);padding:9px 12px;border-radius:14px;background:var(--lav);color:#07162c;font-weight:850;box-shadow:0 12px 28px rgba(186,156,255,.25);transition:left .18s cubic-bezier(.2,.8,.2,1)}.pinch-demo{height:220px;display:grid;place-items:center;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:radial-gradient(circle,#14365b,#07182d);touch-action:pan-y}.pinch-world{--z:1;position:relative;width:170px;height:170px;display:grid;place-items:center;transform:scale(var(--z));transition:transform .12s ease}.pinch-world .ring{position:absolute;border-radius:50%;border:2px solid var(--lav)}.pinch-world .r1{inset:0;border-color:var(--cyan)}.pinch-world .r2{inset:28px;border-color:var(--lav)}.pinch-world .r3{inset:57px;border-color:var(--gold)}.pinch-world span{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:#f5efe5;color:#08182c;font-weight:800;z-index:2}.tap-pattern{display:grid;grid-template-columns:repeat(10,1fr);gap:8px}.tap-pattern button{aspect-ratio:1;border-radius:50%;border:1px solid #45627f;background:#112d49;min-height:0!important;cursor:pointer}.tap-pattern button.on{background:var(--teal);box-shadow:0 0 0 4px rgba(104,217,206,.12),0 0 18px rgba(104,217,206,.2)}.move-beads{display:flex;align-items:center;justify-content:center;gap:8px;min-height:150px;flex-wrap:wrap}.move-beads button{width:70px;height:70px;border-radius:50%;border:2px solid #56718c;background:linear-gradient(145deg,#183f60,#10243e);color:var(--text);font-weight:800;cursor:grab}.move-beads button:nth-child(2n){border-color:var(--lav)}.move-beads button.selected{box-shadow:0 0 0 6px rgba(255,208,108,.18);border-color:var(--gold);transform:translateY(-8px)}.hold-card{min-height:190px;border:1px solid var(--line);border-radius:24px;padding:24px;display:grid;place-items:center;text-align:center;gap:4px;position:relative;overflow:hidden;touch-action:pan-y;outline:none}.hold-card strong{font-size:1.5rem}.hold-card span{font:1.45rem Cambria Math,serif;color:var(--lav)}.hold-card small{color:var(--muted)}.hold-orbit{position:absolute;width:250px;height:110px;border:1px dashed rgba(104,217,206,.25);border-radius:50%;transform:rotate(-18deg)}.hold-reveal{padding:14px;border-radius:18px;background:#0b2744;border:1px solid var(--teal)}.gesture-preference-cards{display:grid;gap:8px}.gesture-preference-cards button{min-height:78px;border-radius:18px;border:1px solid var(--line);background:#0a1d36;color:var(--text);padding:12px 16px;text-align:left;display:flex;justify-content:space-between;align-items:center}.gesture-preference-cards button span{color:var(--muted);font-size:.85rem}.gesture-preference-cards button.active{border-color:var(--teal);background:#12344c}.touch-principles{margin-top:18px;display:grid;grid-template-columns:.7fr 1.3fr;gap:26px;align-items:center}.touch-principles h2{font-size:2rem;margin:.2em 0}.principle-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.principle-grid>div{border:1px solid var(--line);border-radius:18px;padding:14px;display:grid}.principle-grid span{color:var(--muted)}

/* Publication-style learning */
.learn-masthead{position:relative;overflow:hidden;padding:clamp(28px,5vw,68px);min-height:360px;display:grid;align-content:end;background:radial-gradient(circle at 78% 25%,rgba(186,156,255,.20),transparent 26%),linear-gradient(145deg,#0d2c49,#091a31 55%,#101c3e)}.learn-masthead::after{content:"";position:absolute;width:320px;height:320px;right:-80px;top:-70px;border:1px solid rgba(104,217,206,.25);border-radius:50%;box-shadow:0 0 0 42px rgba(186,156,255,.05),0 0 0 84px rgba(255,208,108,.03)}.learn-masthead[data-theme="gold"]::after{border-color:rgba(255,208,108,.35)}.learn-masthead[data-theme="cyan"]::after{border-color:rgba(109,187,243,.35)}.learn-masthead[data-theme="teal"]::after{border-color:rgba(104,217,206,.38)}.learn-masthead h1{max-width:1050px;font-size:clamp(3rem,7vw,6.6rem);line-height:.93;letter-spacing:-.055em;margin:.15em 0;position:relative;z-index:1}.learn-masthead .dek{max-width:820px;font-size:clamp(1.2rem,2.2vw,1.7rem);color:#ddd2e9;position:relative;z-index:1}.learn-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;position:relative;z-index:1}.learn-meta span{padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:.8rem}.reading-tools{position:sticky;top:10px;z-index:16;display:flex;gap:7px;align-items:center;justify-content:space-between;padding:8px 10px;margin:14px 0 26px;background:rgba(9,27,50,.91);backdrop-filter:blur(18px)}.reading-tools .tool-group{display:flex;gap:6px;flex-wrap:wrap}.reading-tools button,.reading-tools a{min-height:42px;padding:9px 12px;border-radius:14px;border:1px solid var(--line);background:#0c2643;color:var(--text);cursor:pointer}.reading-progress{height:4px;background:rgba(255,255,255,.07);position:absolute;left:10px;right:10px;bottom:0;border-radius:9px;overflow:hidden}.reading-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--teal),var(--lav),var(--gold))}.publication-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(240px,330px);gap:34px;justify-content:center;align-items:start}.publication-copy{font-family:Georgia,"Times New Roman",serif}.publication-copy p{font-size:clamp(1.12rem,1.6vw,1.27rem);line-height:1.78;color:#e7e0e8;margin:0 0 1.55em}.publication-copy p:first-of-type::first-letter{float:left;font-size:4.3rem;line-height:.78;padding:.12em .11em 0 0;color:var(--gold);font-family:ui-rounded,"Segoe UI",sans-serif;font-weight:750}.publication-copy h2{font-family:Inter,ui-rounded,"Segoe UI",system-ui,sans-serif;font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.08;margin:1.5em 0 .5em;letter-spacing:-.025em}.publication-copy h3{font-family:Inter,ui-rounded,"Segoe UI",system-ui,sans-serif}.publication-sidebar{position:sticky;top:82px;display:grid;gap:14px}.pub-box{padding:20px}.pub-box h3{margin:.2em 0 .7em}.key-points{list-style:none;padding:0;margin:0;display:grid;gap:11px}.key-points li{display:grid;grid-template-columns:24px 1fr;gap:8px;color:#d9d3e1}.key-points li::before{content:"✦";color:var(--teal)}.article-figure{margin:28px 0 34px;padding:18px;border-radius:28px;border:1px solid var(--line);background:#081a31;overflow:hidden}.article-figure figcaption{display:flex;justify-content:space-between;gap:12px;margin-top:14px;color:var(--muted);font: .86rem Inter,system-ui,sans-serif}.editorial-visual{min-height:300px;border-radius:20px;background:radial-gradient(circle at 50% 45%,rgba(109,187,243,.1),transparent 45%),#07182d;display:grid;place-items:center;position:relative;overflow:hidden;padding:24px;font-family:Inter,system-ui,sans-serif}.editorial-visual svg{max-width:100%;height:auto}.editorial-visual .big-equation{font:clamp(2rem,7vw,5rem) Cambria Math,Georgia,serif;color:var(--lav);text-align:center}.editorial-visual .equation-bridge{display:flex;align-items:center;justify-content:center;gap:clamp(12px,4vw,50px);flex-wrap:wrap}.editorial-visual .equation-bridge>div{padding:18px 24px;border:1px solid var(--line);border-radius:20px;min-width:170px;text-align:center}.editorial-visual .equation-bridge strong{display:block;font-size:2rem;color:var(--teal)}.visual-ruler-demo{width:min(800px,95%);display:grid;gap:34px}.visual-ruler-demo .ruler-line{height:4px;background:var(--line);position:relative}.visual-ruler-demo i{position:absolute;top:-8px;width:18px;height:18px;border-radius:50%;background:var(--gold);transform:translateX(-50%)}.visual-ruler-demo label{position:absolute;top:18px;transform:translateX(-50%);white-space:nowrap;color:#dcd5e5}.mini-squares{display:flex;gap:18px;align-items:flex-end;justify-content:center}.mini-squares span{display:grid;place-items:center;border:2px solid var(--teal);background:rgba(104,217,206,.08);font-weight:750}.pub-try{margin:34px 0;padding:24px;border:1px solid rgba(255,208,108,.4);border-radius:26px;background:linear-gradient(135deg,rgba(255,208,108,.07),rgba(186,156,255,.05));font-family:Inter,system-ui,sans-serif}.pub-try h2{margin:0 0 .35em}.pub-try .try-stage{margin-top:16px;min-height:150px;border-radius:20px;background:#081a31;border:1px solid var(--line);padding:18px;display:grid;place-items:center}.pub-try input[type=range]{width:min(650px,100%)}.pub-glossary{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:30px 0}.glossary-item{border-top:2px solid var(--teal);padding:14px;background:rgba(10,29,53,.58);border-radius:0 0 16px 16px}.glossary-item strong{font-family:Inter,system-ui,sans-serif;color:var(--teal)}.article-endmatter{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);font-family:Inter,system-ui,sans-serif}.article-endmatter .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.article-endmatter .related-grid a{padding:16px;border:1px solid var(--line);border-radius:18px;background:#0a1c34}.magazine-feature{grid-column:span 2;min-height:360px;padding:30px;background:radial-gradient(circle at 80% 15%,rgba(104,217,206,.2),transparent 32%),linear-gradient(145deg,#0c2a46,#0a1d35)}.magazine-feature h3{font-size:clamp(2rem,4vw,3.5rem);line-height:1;margin:.3em 0}.article-filter-bar{display:flex;gap:8px;overflow:auto;padding:6px 2px 12px;scroll-snap-type:x proximity}.article-filter-bar button{flex:0 0 auto;scroll-snap-align:start}.article-card{position:relative;overflow:hidden}.article-card::after{content:"→";position:absolute;right:18px;bottom:16px;color:var(--teal);font-size:1.3rem}.article-card .article-category{color:var(--gold);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em}.reading-mode-light{background:#f4efe6!important;color:#102238!important}.reading-mode-light .site{color:#102238}.reading-mode-light .publication-copy p,.reading-mode-light .learn-masthead .dek{color:#28364a}.reading-mode-light .panel,.reading-mode-light .reading-tools,.reading-mode-light .pub-box,.reading-mode-light .article-figure,.reading-mode-light .pub-try,.reading-mode-light .article-endmatter .related-grid a{background:#fffaf1;color:#102238;border-color:#c9c1b4}.reading-mode-light .muted,.reading-mode-light .article-figure figcaption{color:#586477}.reading-mode-light .learn-masthead{background:linear-gradient(145deg,#e3efe9,#eee7f4 55%,#f5e5c7);color:#102238}.reading-mode-light .editorial-visual,.reading-mode-light .pub-try .try-stage{background:#e9eef2}.reading-wide .publication-layout{grid-template-columns:minmax(0,1050px)}.reading-wide .publication-sidebar{position:static;grid-template-columns:1fr 1fr}.reading-wide .publication-sidebar{grid-row:2}.article-body{max-width:none!important;padding:0!important}

/* Tablet and phone layout */
@media (hover:none),(pointer:coarse){.pill,.button,.chip,.tab,.nav-link,button:not(.tap-pattern button),select,.field{min-height:var(--touch-min)}.chip{padding:12px 16px}.scale-node{min-width:154px}.scale-node .orb{width:104px;height:104px}.bottom-nav{bottom:max(8px,var(--safe-bottom));padding-bottom:max(8px,var(--safe-bottom))}.fidget-button{width:64px;height:64px}.bubble-pop{min-width:38px;min-height:38px}.space-card,.module-card,.article-card{touch-action:pan-y}.bead{min-width:36px;min-height:36px}.nav-link{display:grid;place-items:center;gap:2px}}
@media(max-width:980px){.touch-lab-grid{grid-template-columns:1fr}.publication-layout{grid-template-columns:1fr}.publication-sidebar{position:static;grid-template-columns:1fr 1fr}.magazine-feature{grid-column:span 2}.learn-masthead{min-height:300px}.touch-principles{grid-template-columns:1fr}.topbar{position:sticky;top:0;z-index:30;padding:8px 0;background:rgba(7,22,44,.88);backdrop-filter:blur(18px)}.site{padding-inline:max(18px,var(--safe-left)) max(18px,var(--safe-right))}}
@media(max-width:760px){body{font-size:16px}.site{padding-top:10px;padding-bottom:calc(104px + var(--safe-bottom))}.topbar{margin-bottom:20px}.brand{font-size:1.18rem;letter-spacing:.18em}.brand-mark{width:39px;height:39px}.page-head{display:grid}.page-head h1{font-size:clamp(2.5rem,13vw,4rem)}.page-head p{font-size:1.05rem}.bottom-nav{left:max(8px,var(--safe-left));right:max(8px,var(--safe-right));transform:none;width:auto;grid-template-columns:repeat(6,1fr);border-radius:22px}.bottom-nav .nav-link{min-width:0;padding:9px 2px;font-size:.72rem}.bottom-nav .nav-link>span:first-child{font-size:1.35rem}.gesture-cycle-controls{width:100%}.publication-sidebar{grid-template-columns:1fr}.reading-tools{top:62px;overflow:auto;justify-content:flex-start}.reading-tools .tool-group{flex-wrap:nowrap}.reading-tools button,.reading-tools a{white-space:nowrap}.learn-masthead{margin-inline:-14px;border-radius:0;border-inline:0;min-height:330px;padding:28px 18px}.learn-masthead h1{font-size:clamp(2.8rem,14vw,4.5rem)}.publication-copy p{font-size:1.08rem;line-height:1.72}.pub-glossary{grid-template-columns:1fr}.article-endmatter .related-grid{grid-template-columns:1fr}.article-filter-bar{margin-inline:-4px}.article-grid{display:grid;grid-template-columns:1fr}.magazine-feature{grid-column:span 1}.experiment-controls{grid-template-columns:1fr 1fr}.experiment-controls output{grid-column:1/-1;grid-row:1}.tap-pattern{grid-template-columns:repeat(10,1fr);gap:5px}.principle-grid{grid-template-columns:1fr}.pinch-controls{top:auto;bottom:10px}.fidget-dock{bottom:calc(88px + var(--safe-bottom))}.scale-row{scroll-snap-type:x mandatory}.scale-node{scroll-snap-align:center}}
@media(max-width:520px){.module-grid{grid-template-columns:1fr}.module-card{min-height:auto;display:grid;grid-template-columns:90px 1fr;gap:14px;align-items:center}.module-card img{width:90px;height:80px;margin:0}.module-card h3{font-size:1.16rem}.article-card{min-height:auto}.learn-masthead h1{font-size:clamp(2.55rem,15vw,3.8rem)}.learn-meta span:nth-child(n+4){display:none}.publication-copy p:first-of-type::first-letter{font-size:3.6rem}.reading-tools{margin-inline:-8px;border-radius:16px}.touch-experiment{padding:18px}.flick-runway{margin-inline:8px}.tap-pattern{grid-template-columns:repeat(8,1fr)}.move-beads button{width:62px;height:62px}.experiment-title{grid-template-columns:44px 1fr}.experiment-title>span{width:40px;height:40px}.bottom-nav .label{display:none!important}.bottom-nav .nav-link{font-size:0}.bottom-nav .nav-link>span:first-child{font-size:1.45rem}.gesture-surface::after{display:none}}
@media(max-height:620px) and (orientation:landscape){.bottom-nav{left:auto;right:max(10px,var(--safe-right));top:50%;bottom:auto;transform:translateY(-50%);width:66px;grid-template-columns:1fr;gap:4px}.site{padding-right:90px;padding-bottom:30px}.fidget-dock{right:88px;bottom:18px}.bottom-nav .label{display:none!important}.bottom-nav .nav-link>span:first-child{font-size:1.25rem}.learn-masthead{min-height:250px}.reading-tools{top:4px}}
@media print{body{background:#fff!important;color:#111!important}.topbar,.bottom-nav,.fidget-dock,.reading-tools,.gesture-cycle-controls,.page-actions,.footer-note{display:none!important}.site{max-width:900px;padding:0}.panel,.learn-masthead,.article-figure,.pub-box{box-shadow:none!important;background:#fff!important;color:#111!important;border-color:#bbb!important}.publication-layout{display:block}.publication-sidebar{position:static;display:block}.publication-copy p,.muted{color:#222!important}.learn-masthead .dek{color:#222!important}.editorial-visual{background:#f3f3f3!important}.publication-copy{font-size:11pt}.learn-masthead{min-height:auto;padding:20px 0}}
.mobile-search-toggle{display:none}.mobile-search-pop{position:fixed!important;left:max(12px,var(--safe-left));right:max(12px,var(--safe-right));top:70px;z-index:110;padding:10px;border-radius:18px;background:rgba(7,22,44,.97);border:1px solid var(--line);box-shadow:var(--shadow)}.mobile-search-pop .searchbar{display:block!important;min-width:0;width:100%}.mobile-search-pop #globalResults{position:relative!important;top:8px!important;right:auto!important;width:100%!important;max-height:55vh;overflow:auto}@media(max-width:760px){.mobile-search-toggle{display:inline-grid;place-items:center}.top-actions{gap:5px}.top-actions>.pill:not(.mobile-search-toggle){padding-inline:13px}}
.publication-layout{padding:0 clamp(16px,3vw,34px) 34px}.source-notes{display:grid;gap:4px}.article-next-prev{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}.article-next-prev a{padding:16px;border:1px solid var(--line);border-radius:18px}.article-next-prev a:last-child{text-align:right}.resolution-pixels{width:min(620px,90%);display:grid;grid-template-columns:repeat(14,1fr);gap:3px}.resolution-pixels i{aspect-ratio:1;background:linear-gradient(135deg,var(--cyan),var(--lav));border-radius:3px}.fill-figure{width:min(560px,90%);display:grid;grid-template-columns:repeat(10,1fr);gap:5px;position:relative}.fill-figure i{aspect-ratio:1;border-radius:4px;background:#132c48}.fill-figure i.on{background:linear-gradient(135deg,var(--teal),var(--lav))}.fill-figure span{grid-column:1/-1;text-align:center;color:var(--muted);margin-top:8px}.ratio-figure{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:center}.ratio-figure i,.ratio-figure .small-unit{width:42px;height:42px;border-radius:50%;background:var(--teal)}.ratio-figure b{flex-basis:100%;text-align:center}.gesture-figure{display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap}.gesture-figure span{padding:18px 24px;border-radius:22px;border:1px solid var(--line);background:#102b49;font-size:1.3rem}.gesture-figure p{flex-basis:100%;text-align:center;color:var(--muted)}.scale-ring-figure{width:300px;height:300px;position:relative;display:grid;place-items:center}.scale-ring-figure i{position:absolute;border:2px solid var(--teal);border-radius:50%;inset:10px}.scale-ring-figure i:nth-child(2){inset:45px;border-color:var(--lav)}.scale-ring-figure i:nth-child(3){inset:80px;border-color:var(--gold)}.scale-ring-figure i:nth-child(4){inset:115px;border-color:var(--cyan)}.scale-ring-figure span{text-align:center;z-index:2}.try-repeat{display:flex;gap:5px;flex-wrap:wrap;justify-content:center;margin-top:14px}.try-repeat i{width:24px;height:24px;border-radius:50%;background:var(--teal)}.try-fill{height:70px;border:1px solid var(--line);border-radius:18px;margin-top:14px;background:linear-gradient(90deg,var(--lav) var(--fill,50%),#10243d var(--fill,50%))}.try-pixels{height:120px;border-radius:18px;margin-top:14px;background:repeating-conic-gradient(from 45deg,#6dbbf3 0 25%,#172d48 0 50%) 0 0/var(--px,8px) var(--px,8px)}.try-color{height:80px;border-radius:18px;margin-top:14px}.reading-tools button.active{border-color:var(--teal);background:#16405a}@media(max-width:760px){.article-next-prev{grid-template-columns:1fr}.article-next-prev a:last-child{text-align:left}}
.full-beads .bead.selected,.beads .bead.selected{box-shadow:0 0 0 5px rgba(255,208,108,.22);outline:2px solid var(--gold);transform:translateY(-6px)}