.learn-home-mode{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 25px}.learn-home-mode a{border:1px solid var(--learn-edge);border-radius:7px;min-height:46px;padding:12px 18px;font-size:16px}.learn-home-mode a[aria-current=page]{background:var(--learn-accent);color:#0a1626}
.world-heading{display:flex;justify-content:space-between;align-items:start;gap:35px;margin-bottom:20px}.world-heading h2{font-size:clamp(28px,3.3vw,42px);font-weight:450;letter-spacing:-1px;line-height:1.2}.world-heading p{font-size:18px;line-height:1.6;color:var(--learn-copy);max-width:740px;margin-top:16px}.world-switch{display:flex;flex-direction:column;flex-shrink:0;gap:8px}.world-switch button{border:1px solid var(--learn-edge);background:transparent;border-radius:6px;color:var(--learn-copy);padding:13px 16px;min-height:46px;text-align:left;font-size:14px}.world-switch button[aria-pressed=true]{background:#233a54;border-color:#83abc7;color:var(--learn-light)}.world-hint{font-size:14px;color:var(--learn-soft);margin-bottom:20px}
.world-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(290px,1fr);gap:26px;align-items:start}.world-map{position:relative;min-width:0}.world-map>svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}.world-map>svg path{stroke:#99c1df;stroke-width:2;fill:none;stroke-dasharray:4 5;opacity:.6}.world-layer{position:relative;padding:20px 0 24px}.world-layer:first-of-type{padding-top:0}.world-layer>h3{font-size:14px;font-weight:500;color:var(--learn-soft);margin-bottom:14px;display:flex;gap:10px;align-items:center}.world-layer>h3 span{display:flex;align-items:center;justify-content:center;width:25px;height:25px;border-radius:50%;background:#1c3046;font-size:12px}.world-layer>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.world-node{position:relative;border:1px solid #30465e;border-radius:10px;padding:17px 18px;background:#101e30;text-align:left;min-width:0;min-height:100px}.world-node>span{display:block;font-size:14px;color:var(--world-colour);margin-bottom:9px}.world-node strong{font-size:17px;font-weight:500;line-height:1.45;display:block}.world-node.linked{border-color:#6e91ad}.world-node[aria-pressed=true]{background:#263a4b;border-color:var(--world-colour);box-shadow:inset 4px 0 var(--world-colour)}.world-node:hover{border-color:var(--world-colour)}
.world-detail{padding:24px;background:#14263a;border:1px solid var(--world-colour);border-radius:13px;position:sticky;top:20px;scroll-margin-top:20px}.world-label{font-size:14px;color:var(--world-colour);margin-bottom:12px}.world-detail h3,.world-scene h3{font-size:29px;line-height:1.25;font-weight:450;letter-spacing:-.7px;margin-bottom:16px}.world-detail>p:not(.world-label),.world-scene p:not(.world-label){font-size:17px;line-height:1.65;color:var(--learn-copy)}.world-open{display:inline-flex;align-items:center;color:var(--world-colour);padding:12px 0;min-height:46px;font-size:16px;margin-top:10px}.world-detail h4{font-size:18px;font-weight:500;margin:25px 0 10px;padding-top:21px;border-top:1px solid #34506b}.world-links article{margin-top:19px}.world-links button{border:0;background:transparent;color:var(--learn-light);font-size:16px;text-align:left;line-height:1.45;padding:5px 0;min-height:44px;text-decoration:underline;text-underline-offset:4px}.world-links span{display:block;font-size:12px;letter-spacing:.02em;color:var(--world-colour);margin:5px 0}.world-links p{font-size:15px;line-height:1.65;color:var(--learn-copy)}.world-back-map{display:none;background:transparent;border:0;color:var(--learn-accent);padding:14px 0;min-height:44px;margin-top:18px;font-size:15px}.world-question{display:flex;justify-content:space-between;gap:35px;padding:26px;margin-top:35px;background:#1b2332;border:1px solid #6e634b;border-radius:11px;align-items:center}.world-question h3{font-size:25px;font-weight:500;letter-spacing:-.5px}.world-question p{font-size:17px;color:var(--learn-copy);line-height:1.65;max-width:720px;margin-top:12px}.world-question a{color:#efd58f;font-size:16px;line-height:1.55;min-width:180px;max-width:260px;padding:10px 0}.world-boundary{font-size:14px;color:var(--learn-soft);line-height:1.65;margin:22px 0}
.world-journey{border:1px solid var(--learn-edge);border-radius:14px;background:#122237;padding:26px}.world-journey>nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:25px}.world-journey>nav button{width:42px;min-height:42px;border:1px solid var(--learn-edge);border-radius:50%;background:#0c192a;color:var(--learn-copy);font-size:14px}.world-journey>nav button[aria-pressed=true]{background:var(--world-colour);color:#0c192a}.world-scene{display:grid;grid-template-columns:1fr 1.4fr;gap:30px;align-items:center;min-height:330px}.world-tea{max-width:320px;width:100%;margin:auto;text-align:center;color:var(--world-colour)}.world-tea svg{width:100%;height:auto;fill:#173549;stroke:var(--world-colour);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.world-tea svg path+path{fill:none}.world-tea span{font-size:16px}.world-story-nav{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--learn-edge);padding-top:20px;margin-top:20px}.world-story-nav button{background:transparent;border:1px solid var(--learn-edge);color:var(--world-colour);border-radius:6px;padding:12px 15px;min-height:46px;font-size:16px}.world-story-nav button:last-child{background:var(--world-colour);color:#0b1727}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.learn-page:has(.learn-connected) .learn-heading h1{font-size:clamp(42px,5vw,64px);letter-spacing:-2px}.learn-page:has(.learn-connected) .learn-domain-nav{flex-wrap:nowrap;overflow-x:auto;max-width:100%;padding-bottom:14px}.learn-page:has(.learn-connected) .learn-domain-nav a{flex-shrink:0}
@media(max-width:1000px){.world-heading{flex-direction:column;gap:22px}.world-switch{flex-direction:row;flex-wrap:wrap}.world-layout{grid-template-columns:minmax(0,1.2fr) minmax(270px,1fr)}.world-node{padding:14px}.world-node strong{font-size:16px}}
@media(max-width:850px){.world-layout{grid-template-columns:1fr}.world-detail{position:static}.world-map .world-layer>div{grid-template-columns:repeat(2,minmax(0,1fr))}.world-back-map{display:block}.world-question{flex-direction:column;gap:15px;align-items:start}.world-question a{max-width:none}.world-scene{grid-template-columns:1fr}.world-tea{max-width:210px}.world-journey{padding:20px}.world-story-nav{gap:12px}.world-story-nav button{font-size:14px;padding:12px}.world-scene h3{font-size:27px}}
@media(max-width:420px){.world-layer>div{gap:9px}.world-node{padding:12px;min-height:107px}.world-node strong{font-size:15px}.world-node>span{font-size:13px}.world-detail{padding:20px}.world-switch button{font-size:13px;padding:12px}.world-story-nav{flex-wrap:wrap}.world-journey>nav{gap:7px}.world-journey>nav button{width:38px;min-height:38px}.world-question{padding:20px}}
.budget-summary{border:1px solid #5d7590;border-radius:12px;padding:22px;background:#0b192b}.budget-summary figcaption{font-size:18px;line-height:1.45;margin-bottom:20px}.budget-summary>div{display:flex;justify-content:space-between;gap:15px;padding:13px 0;font-size:16px;color:var(--learn-copy)}.budget-summary strong{font-size:24px;font-weight:500;color:#b5dfcf}.budget-summary .budget-total{border-top:1px solid var(--learn-edge);margin-top:8px}.budget-summary p{font-size:13px;line-height:1.6;color:var(--learn-soft);margin-top:14px}.learn-budget{font-size:16px;min-width:0}.budget-date{font-size:14px;line-height:1.65;color:var(--learn-soft);margin-bottom:20px}.budget-switch{display:flex;flex-wrap:wrap;gap:8px;margin:17px 0}.budget-switch button{border:1px solid var(--learn-edge);background:#152a40;min-height:44px;border-radius:6px;font-size:14px;padding:10px 12px}.budget-switch button[aria-pressed=true]{background:var(--learn-accent);color:#091625;border-color:var(--learn-accent)}.learn-budget h3{font-size:23px;line-height:1.3;font-weight:500;margin:20px 0 13px}.budget-total-copy{font-size:17px;line-height:1.6;color:var(--learn-copy)}.budget-instruction{font-size:14px;line-height:1.6;color:var(--learn-soft);margin-bottom:15px}.budget-rows{display:flex;flex-direction:column;gap:10px}.budget-rows>button{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;align-items:start;min-height:62px;text-align:left;background:#142840;border:1px solid #36506c;border-radius:7px;padding:12px;font-size:14px;line-height:1.45}.budget-rows strong{font-weight:500;white-space:nowrap}.budget-rows i{grid-column:1/-1;display:block;width:100%;height:7px;background:linear-gradient(to right,var(--budget-colour) var(--amount),#293e55 var(--amount));border-radius:4px}.budget-rows button[aria-expanded=true]{border-color:var(--learn-accent);background:#263e55}.budget-explanation{border-left:2px solid var(--learn-accent);padding:15px;font-size:16px;line-height:1.6;margin-top:20px;background:#20364c}.budget-gap{font-size:15px;line-height:1.6;margin-top:20px;padding:17px;border:1px solid #75674c;border-radius:7px}.budget-gap span,.budget-gap strong{display:block}.budget-gap strong{font-weight:500;color:#ecd08c;margin-top:8px}.budget-notes{margin-top:20px;font-size:14px;line-height:1.65;color:var(--learn-copy)}.budget-notes summary{padding:10px 0;min-height:44px;cursor:pointer}.budget-notes p{margin:14px 0}.budget-notes a{display:block;padding:9px 0;text-decoration:underline;text-underline-offset:3px;color:var(--learn-accent)}.quick-connections p{margin:0 0 10px;font-size:15px;line-height:1.6}.learn-quick:has(.learn-budget) .quick-how{grid-template-columns:minmax(0,1fr) minmax(0,1.2fr)}
@media(max-width:1000px){.learn-quick:has(.learn-budget) .quick-how{grid-template-columns:1fr}.learn-quick:has(.learn-budget) .quick-experiment{max-width:620px}}
@media(max-width:420px){.budget-summary{padding:16px}.budget-summary figcaption{font-size:17px}.budget-summary strong{font-size:23px}.budget-rows>button{padding:10px;font-size:14px}.budget-switch button{font-size:13px}}
.learn-welcome{max-width:860px;border-left:2px solid #93b8e8;padding:4px 0 4px 20px;margin:0 0 28px}.learn-welcome p{font-size:18px;line-height:1.65;color:var(--learn-copy)}.learn-welcome>span{display:block;color:var(--learn-soft);font-size:14px;margin-top:8px}.learn-collections>header{max-width:900px;margin:30px 0}.learn-collections>header h2{font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-1px}.learn-collections>header>p{font-size:18px;line-height:1.65;color:var(--learn-copy);margin-top:16px}.learn-collections>header .eyebrow{font-size:14px;color:var(--learn-accent);margin:18px 0 12px}.collection-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.collection-card{display:flex;gap:24px;align-items:start;padding:28px;background:#122237;border:1px solid #38516d;border-radius:12px;transition:background .15s}.collection-card:hover{background:#1a3049}.collection-number{font:italic 42px/1 Georgia,serif;color:#a0c6f5;min-width:48px}.collection-card h3{font-size:27px;line-height:1.25;font-weight:450;letter-spacing:-.5px;margin:10px 0 15px}.collection-card p{font-size:16px;line-height:1.6;color:var(--learn-copy)}.collection-card p:first-child{font-size:14px;color:var(--learn-soft)}.collection-count{display:block;font-size:14px;color:#aed1f9;margin-top:20px}.collection-byline a{color:var(--learn-accent);text-decoration:underline;text-underline-offset:4px}.learn-collections .collection-context{font-size:15px;line-height:1.65;color:var(--learn-soft);margin:14px 0 24px}.learn-credit{font-size:14px;line-height:1.6;color:var(--learn-soft);margin:18px 0 24px;max-width:900px}.learn-credit a{color:var(--learn-accent);text-decoration:underline;text-underline-offset:3px}.learn-credit details{margin-top:8px}.learn-credit summary{min-height:40px;cursor:pointer;padding:9px 0}.learn-credit details>p{max-width:800px;margin:8px 0}.learn-credit details>a{display:block;margin:10px 0}.ai-route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.ai-route a{border:1px solid #526b86;border-radius:10px;padding:24px;background:#12283f}.ai-route span{display:block;font-size:14px;color:#a1c9e9;margin-bottom:20px}.ai-route strong{display:block;font-size:25px;font-weight:450;margin-bottom:12px}.ai-route p{font-size:16px;line-height:1.6;color:var(--learn-copy)}.ai-card-group{margin-top:42px}.ai-card-group>h3,.learn-credits-page>h3{font-size:27px;font-weight:450;margin:30px 0 20px;letter-spacing:-.5px}.credits-thinkers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.credits-thinkers article{padding:23px;border:1px solid var(--learn-edge);border-radius:9px}.credits-thinkers h4{font-size:20px;font-weight:500;margin:0 0 15px}.credits-thinkers p,.learn-credits-page>p{font-size:16px;line-height:1.7;color:var(--learn-copy);margin:12px 0}.credits-thinkers a,.learn-credits-page>p a,.credits-index a{font-size:15px;color:var(--learn-accent);text-decoration:underline;text-underline-offset:3px;line-height:1.7}.credits-index{border-top:1px solid var(--learn-edge);margin-top:30px;padding-top:15px}.credits-index summary{font-size:18px;cursor:pointer;min-height:48px;padding:12px 0}.credits-index li{margin:12px 0;overflow-wrap:anywhere}
@media(max-width:800px){.collection-grid,.credits-thinkers{grid-template-columns:1fr}.ai-route{grid-template-columns:repeat(2,minmax(0,1fr))}.collection-card{padding:22px;gap:18px}.learn-welcome p{font-size:17px}}
@media(max-width:420px){.collection-card{padding:18px;gap:12px}.collection-number{font-size:30px;min-width:37px}.collection-card h3{font-size:24px}.ai-route a{padding:16px}.ai-route strong{font-size:22px}.ai-route p{font-size:15px}.learn-home-mode a{font-size:14px;padding:12px}.learn-welcome{padding-left:15px}}
.ai-demo h3{font-size:23px;line-height:1.3;margin:0 0 22px;letter-spacing:-.5px}.ai-demo-box{border:1px solid #344d67;background:#0c1b2d;padding:18px;border-radius:8px}.ai-demo-box.active{border-color:#83b6e4;background:#18334d}.ai-demo-box>span{display:block;font-size:14px;color:#abd3f2;margin-bottom:10px}.ai-demo-box p{font-size:17px;line-height:1.6;color:#d7e5f4}.ai-demo-arrow{display:block;text-align:center;font-size:24px;color:#a9c9df;padding:5px}.ai-demo .learn-controls{margin:20px 0}.ai-demo .learn-controls button{font-size:15px;line-height:1.5}.ai-demo .learn-figure-note{font-size:14px;line-height:1.6}
.learn-science h3{font-size:24px;line-height:1.3;letter-spacing:-.5px;margin:0 0 22px}.science-receiver{width:100%;height:auto;display:block;max-width:430px;margin:auto}.science-receiver text{font:16px Arial,sans-serif;fill:#dce9f5}.science-cell{fill:#17334b;stroke:#486a85;stroke-width:2}.science-membrane{stroke:#698ea8;stroke-width:5;fill:none}.science-protein{fill:#253854;stroke:#b6c5e3;stroke-width:2}.science-protein.active{fill:#625278;stroke:#e5cbfb}.science-molecule{fill:#d2baf2;stroke:#eaddff;stroke-width:2}.science-signal{stroke:#ead997;stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round}.science-result{font-size:17px;line-height:1.6;color:#d3e4f4;padding:18px;border:1px solid #47617a;background:#182e46;border-radius:8px;margin:18px 0}.science-controls{margin:20px 0}.science-controls button{font-size:15px;line-height:1.5}.science-controls button[aria-pressed=true]{background:#d8c3f0;color:#132137;border-color:#d8c3f0}.science-conversion,.science-chain{text-align:center}.science-conversion>div,.science-chain>div{padding:20px;border:1px solid #6a6689;border-radius:10px;background:#192a43}.science-conversion strong,.science-chain strong{display:block;font-size:23px;font-weight:450;color:#e2d6f5}.science-conversion span,.science-chain p{display:block;font-size:16px;line-height:1.6;color:#c8daec;margin-top:12px}.science-conversion>b,.science-chain>b{display:block;font-size:27px;color:#cbb9e5;padding:8px}.science-conversion>p{font-size:17px;line-height:1.6;color:#c8daec}.science-observation{padding:25px;border:1px solid #75749c;border-radius:12px;background:#1b2b43}.science-observation>span{font:italic 36px Georgia,serif;color:#ccbee8}.science-observation h4{font-size:24px;font-weight:450;line-height:1.3;margin:18px 0}.science-observation p{font-size:18px;line-height:1.7;color:#d4e1f1}.science-observation .science-boundary{font-size:15px;border-top:1px solid #50627b;padding-top:18px;margin-top:22px}.learn-science .learn-figure-note{font-size:14px;line-height:1.65}
@media(max-width:420px){.science-observation{padding:18px}.science-observation h4{font-size:22px}.science-observation p{font-size:17px}.science-controls button{font-size:14px}.science-conversion>div,.science-chain>div{padding:17px}}
/* The whole-system entry and the three-part reading flow. */
.system-map{max-width:1060px;margin:0 auto}.system-heading{margin:12px 0 30px}.system-heading h2{font-size:clamp(28px,3.4vw,42px);font-weight:450;letter-spacing:-1px;line-height:1.2}.system-heading p{font-size:17px;line-height:1.65;color:var(--learn-copy);margin-top:14px;max-width:680px}.system-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(200px,.42fr);gap:24px;align-items:center}.system-layer-button{display:flex;align-items:center;gap:22px;width:100%;padding:21px 25px;min-height:126px;text-align:left;border:1px solid #3e5365;border-left:4px solid var(--layer-colour);border-radius:12px;background:#142335;color:var(--learn-light)}.system-layer-button:hover,.system-layer-button[aria-expanded=true]{background:#1e3147;border-color:var(--layer-colour)}.system-layer-button>svg{width:70px;height:64px;flex-shrink:0;stroke:var(--layer-colour);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.system-layer-button>span{flex:1;min-width:0}.system-layer-button small{font-size:12px;color:var(--layer-colour);display:block;margin-bottom:6px}.system-layer-button strong{display:block;font-size:27px;font-weight:450;line-height:1.25;letter-spacing:-.6px}.system-layer-button>span>span{display:block;color:var(--learn-copy);font-size:16px;line-height:1.5;margin-top:8px}.system-layer-button>b{color:var(--layer-colour);font-size:24px;font-weight:400}.system-branches{position:relative;display:flex;gap:10px;flex-direction:column}.system-branches:before{content:'';position:absolute;left:-24px;top:50%;width:24px;border-top:1px solid #657d8b}.system-branches a{display:block;padding:15px 18px;border:1px solid #41566d;border-radius:9px;background:#101e30}.system-branches strong{display:block;font-size:17px;font-weight:500;color:var(--layer-colour);line-height:1.4}.system-branches a>span{display:block;font-size:14px;line-height:1.55;color:var(--learn-copy);margin-top:7px}.system-bridge{display:flex;align-items:center;gap:16px;min-height:55px;padding-left:51px;color:var(--learn-soft)}.system-bridge>span{font-size:25px;color:var(--layer-colour)}.system-bridge p{font-size:14px;line-height:1.5}.system-detail{max-width:calc(100% / 1.42 - 17px);padding:20px 24px;border:1px solid #43586f;border-top:0;border-radius:0 0 12px 12px;background:#112033;margin-top:-3px}.system-detail>p{font-size:17px;color:var(--learn-copy);line-height:1.7;margin:8px 0 20px}.system-topics{display:grid;grid-template-columns:1fr 1fr;gap:10px}.system-topics a{padding:15px;background:#1b3047;border-radius:7px}.system-topics span{display:block;font-size:12px;color:var(--learn-soft);margin-bottom:9px}.system-topics strong{font-size:16px;font-weight:450;line-height:1.5;display:block}.system-topics b{font-weight:400;color:var(--layer-colour)}.system-lenses{border-top:1px solid #3b526a;padding-top:28px;margin-top:15px}.system-lenses>p{font-size:16px;color:var(--learn-soft);margin-bottom:18px}.system-lenses>div{display:grid;grid-template-columns:1fr 1fr;gap:18px}.system-lenses a{padding:22px;border:1px solid #506079;border-radius:10px;background:#17253a}.system-lenses strong{font-size:22px;font-weight:450}.system-lenses span{display:block;margin-top:13px;font-size:16px;line-height:1.65;color:var(--learn-copy)}.system-note{font-size:14px;line-height:1.6;color:var(--learn-soft);margin:24px 0}.learn-about{margin:65px auto 0;padding-top:25px;border-top:1px solid var(--learn-edge);max-width:1060px}.learn-about>a{font-size:14px;color:var(--learn-accent);text-decoration:underline}.learn-about .learn-welcome{margin-bottom:20px}.learn-about .learn-welcome p{font-size:16px}.learn-page .learn-home-mode{margin-bottom:28px}.learn-page:has(.system-map) .learn-heading h1{font-size:48px;letter-spacing:-2px}.learn-page:has(.system-map) .learn-heading{margin-bottom:18px}.learn-page:has(.system-map) .learn-heading .eyebrow{display:none}.quick-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.quick-mechanism{display:flex;flex-direction:column;gap:22px}.quick-mechanism-step>button{display:flex;align-items:center;gap:13px;background:transparent;text-align:left;padding:10px 12px;min-height:48px;border:1px solid transparent;border-radius:8px;font-size:20px;line-height:1.4;width:100%;font-weight:450}.quick-mechanism-step>button>span{font-size:14px;color:var(--learn-accent)}.quick-mechanism-step>button[aria-pressed=true]{border-color:#5d7895;background:#20374c}.quick-mechanism-step .quick-copy{padding:10px 12px 0}.quick-mechanism-step .story-copy{font-size:17px;line-height:1.7}.quick-mechanism-step .learn-word-hint{display:none}.quick-deeper>p,.quick-words>p{font-size:18px;line-height:1.75;margin:20px 0;color:var(--learn-copy)}.quick-words strong{font-weight:500;color:var(--learn-light)}.quick-words p>a{display:block}.quick-nav button:disabled{opacity:.3}.quick-panel-top{margin-bottom:20px}.quick-tabs button{justify-content:center;text-align:center}.quick-tabs button>span{font-size:12px}.learn-reading-toolbar{max-width:1040px;margin:0 auto}.learn-domain-nav{align-items:center}.learn-visual-library{margin-top:40px}.learn-visual-library>h2{font-size:28px;margin-bottom:20px;font-weight:450;letter-spacing:-.5px}
@media(max-width:750px){.system-row{grid-template-columns:1fr;gap:10px}.system-layer-button{padding:17px;gap:15px;min-height:116px}.system-layer-button>svg{width:51px;height:55px}.system-layer-button strong{font-size:23px}.system-layer-button>span>span{font-size:15px}.system-branches{margin-left:42px}.system-branches:before{left:-15px;width:15px}.system-branches a{padding:12px 15px}.system-detail{max-width:100%;padding:18px}.system-bridge{padding-left:38px;gap:12px;min-height:57px}.system-bridge p{font-size:13px}.system-topics{grid-template-columns:1fr}.system-lenses>div{grid-template-columns:1fr}.quick-tabs{gap:5px}.quick-tabs button{font-size:13px;padding:12px 6px;flex-direction:column;gap:5px}.system-heading{margin-top:5px}.system-heading p{font-size:16px}.system-lenses strong{font-size:21px}.learn-page:has(.system-map) .learn-heading h1{font-size:42px}}