:root{--paper:#f4f1e9;--ink:#253f40;--muted:#6b7c79;--line:#d5dcd3;--teal:#215f61;--orange:#bb6b43;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}a{color:inherit;text-decoration:none}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,canvas:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:4px}input:focus-visible{outline:2px solid var(--orange);outline-offset:4px}button{color:var(--ink)}.masthead{height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 4vw}.home{display:flex;align-items:center;gap:12px;font-size:13px}.monogram{width:33px;height:33px;display:grid;place-items:center;border:1px solid var(--ink);border-radius:50%;font-size:10px;letter-spacing:1px}.slash{margin:0 13px;color:#98a4a0}.home strong{font-weight:600}.back{font-size:12px}.back span{margin-left:18px}main{max-width:1540px;margin:auto;padding:0 4vw}.intro{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:40px 0 32px}.eyebrow{font-size:10px;letter-spacing:1.8px;text-transform:uppercase;font-weight:650;margin:0 0 12px;color:var(--muted)}h1{font:normal clamp(32px,3.7vw,57px)/1.13 var(--serif);letter-spacing:-1.9px;margin:0}h1 em{font-weight:normal;color:var(--orange)}.intro>p{color:var(--muted);font-size:13px;line-height:1.8;margin:0;max-width:310px}.lab{display:grid;grid-template-columns:minmax(0,1fr) 306px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fbfaf5;box-shadow:0 14px 40px #253f4005}.workspace{min-width:0}.fleet{display:flex;align-items:center;min-height:57px;padding:8px 18px;gap:6px;border-bottom:1px solid var(--line);flex-wrap:wrap}.fleet button{border:0;border-radius:6px;background:transparent;padding:8px 13px;font-size:12px;white-space:nowrap}.fleet button span{font-size:9px;opacity:.5;margin-right:5px}.fleet button[aria-pressed=true]{background:var(--ink);color:#fff}.fleet button:hover:not([aria-pressed=true]){background:#e5ebe3}.scene{height:510px;position:relative;overflow:hidden;background:#c4dad6}.scene canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}.scene canvas:active{cursor:grabbing}.scene-heading{position:absolute;left:27px;top:24px;pointer-events:none}.scene-heading .eyebrow{color:#526d68;margin-bottom:4px}.scene-heading h2{font:normal 33px var(--serif);margin:0;letter-spacing:-.6px}.scene-heading>p:last-child{font-size:11px;color:#566f6a;margin:5px 0}.scene-status{position:absolute;right:22px;top:25px;font-size:10px;display:flex;align-items:center;gap:7px;border:1px solid #25494920;border-radius:30px;padding:5px 11px;background:#f4f5e966}.live-dot,.dot{width:5px;height:5px;background:#39755c;border-radius:50%;display:inline-block}.view-tools{position:absolute;top:91px;right:22px;display:flex;gap:2px;background:#f8f8ef88;border-radius:7px;padding:3px}.view-tools button{border:0;font-size:10px;background:transparent;padding:6px 9px;border-radius:5px}.view-tools button[aria-pressed=true]{background:#fffaf0}.scene-bottom{position:absolute;bottom:16px;left:24px;right:20px;display:flex;justify-content:space-between;align-items:center;gap:8px}.scene-bottom>span{font-size:10px;color:#446563}.scene-bottom>div{display:flex;gap:4px}.scene-bottom button{border:1px solid #42696420;background:#f8f8efb0;border-radius:5px;padding:5px 10px;font-size:10px}.instruments{display:grid;grid-template-columns:repeat(4,1fr);padding:22px 0;border-top:1px solid var(--line)}.instruments>div{padding:0 24px;border-right:1px solid var(--line)}.instruments>div:last-child{border:0}.instruments span{display:block;color:var(--muted);font-size:10px;margin-bottom:3px}.instruments strong{font-size:28px;font-weight:450;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.8px}.instruments small{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:0}.under-scene{border-top:1px solid var(--line);padding:11px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:10px}.under-scene p{margin:0}.divider{margin:0 10px;color:#a5b3ab}.under-scene p:last-child{color:var(--muted)}.controls{border-left:1px solid var(--line);padding:23px 23px 17px;background:#f7f7f0}.panel-heading{display:flex;justify-content:space-between;align-items:center}.panel-heading .eyebrow{margin:0}.panel-heading>span{font-size:9px;color:var(--muted)}.clock-wrap{margin:5px auto 18px;max-width:238px}#wind-clock{display:block;width:100%;cursor:crosshair;touch-action:none}.clock-caption{display:flex;justify-content:center;gap:17px;font-size:9px;color:var(--muted);margin-top:-8px}.clock-caption i{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:4px}.true-dot{background:var(--teal)}.apparent-dot{background:var(--orange)}.control{margin-bottom:15px}.control>label{display:flex;justify-content:space-between;font-size:11px;font-weight:550;margin-bottom:7px}.control output{font-variant-numeric:tabular-nums;font-size:11px;color:var(--teal)}input[type=range]{appearance:none;-webkit-appearance:none;width:100%;height:3px;background:#d3dfd5;border-radius:4px;display:block;margin:12px 0;cursor:pointer}input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--teal);border:2px solid #f7f7f0;box-shadow:0 0 0 1px var(--teal)}input[type=range]::-moz-range-thumb{width:10px;height:10px;border-radius:50%;background:var(--teal);border:2px solid #f7f7f0}input[type=range]:disabled{opacity:.4;cursor:default}.range-caption{display:flex;justify-content:space-between;font-size:8px;color:var(--muted)}.check,.control>label.check{display:flex;align-items:center;justify-content:flex-start;gap:7px;font-size:10px;font-weight:400;margin:8px 0 0;cursor:pointer}.check input{accent-color:var(--teal);width:13px;height:13px;margin:0}.maneuvers{display:flex;gap:8px;margin:17px 0}.maneuvers button{flex:1;border:1px solid #bbcec4;border-radius:5px;background:transparent;padding:7px;font-size:11px}.maneuvers button:hover{background:#e1ebe0}.maneuvers button:disabled{opacity:.45;cursor:wait}.layers{border:0;border-top:1px solid var(--line);padding:8px 0 0;margin:0}.layers legend{font-size:9px;letter-spacing:1px;text-transform:uppercase;padding-right:9px;color:var(--muted)}.force-key{position:absolute;left:24px;bottom:56px;background:#f9f8eec9;border-radius:6px;padding:7px 10px;font-size:9px;max-width:calc(100% - 48px)}.force-key span{margin-right:12px}.force-key span:before{content:'';display:inline-block;width:12px;height:2px;background:currentColor;vertical-align:middle;margin-right:5px}.drive{color:#a76828}.side-force{color:#b76062}.keel{color:#396d99}.drag{color:#71638c}.learning{padding:39px 0 0}.learning-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.learning-heading .eyebrow{margin:0}.learning h2{font:normal 28px var(--serif);letter-spacing:-.7px;margin:0}.lesson-buttons{display:grid;grid-template-columns:repeat(4,1fr);margin-top:24px;border-bottom:1px solid var(--line);gap:17px}.lesson-buttons button{background:none;border:0;border-bottom:2px solid transparent;padding:15px 0;text-align:left;font-size:10px;color:#7e8b80;display:flex;gap:10px;align-items:baseline}.lesson-buttons button span{font-size:12px;color:var(--ink)}.lesson-buttons button[aria-pressed=true]{border-color:var(--orange);color:var(--orange)}.lesson-copy{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;padding:29px 0 35px}.lesson-copy .eyebrow{margin-bottom:7px;color:var(--orange)}.lesson-copy h3{font:normal 25px/1.3 var(--serif);margin:0}.lesson-copy>p{color:var(--muted);font-size:13px;line-height:1.9;max-width:680px;margin:0}.notes{display:grid;grid-template-columns:1fr 1fr;gap:65px;padding:35px 0 40px;border-top:1px solid var(--line)}.notes h3{font:normal 25px var(--serif);margin:0 0 14px}.notes p:not(.eyebrow){color:var(--muted);font-size:12px;line-height:1.9}.specs{display:flex;gap:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin:20px 0}.specs span{font-size:9px;color:var(--muted)}.specs strong{display:block;font-size:14px;font-weight:550;color:var(--ink)}.notes p.small-note{font-size:10px}.notes details{font-size:11px;margin-top:18px}.notes summary{cursor:pointer}.notes a{text-decoration:underline;text-underline-offset:3px}footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding:22px 4vw;font-size:10px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip{position:absolute;top:-80px;z-index:10;background:white;padding:12px}.skip:focus{top:8px}button:hover{filter:brightness(.95)}
@media(min-width:1450px){.scene{height:580px}.controls{padding:25px}.clock-wrap{max-width:260px;margin-bottom:23px}.control{margin-bottom:20px}}
@media(max-width:1050px){main{padding:0 24px}.intro>p{max-width:235px;font-size:11px}.intro{gap:20px}.lab{grid-template-columns:minmax(0,1fr) 270px}.controls{padding:19px}.fleet{gap:2px;padding:8px}.fleet button{padding:8px}.fleet button span{display:none}.scene{height:500px}.instruments>div{padding:0 14px}.instruments strong{font-size:24px}.lesson-buttons{gap:10px}.lesson-buttons button{font-size:9px;gap:6px}.lesson-buttons button span{font-size:11px}}
@media(max-width:760px){.masthead{height:64px;padding:0 20px}.back{font-size:0}.back span{font-size:17px}.intro{display:block;padding:30px 0 24px}.intro>p{margin-top:16px;max-width:none}.intro>p br{display:none}h1{font-size:37px;letter-spacing:-1.3px}.lab{grid-template-columns:1fr}.scene{height:470px}.controls{border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:16px 25px;padding:22px}.panel-heading{grid-column:1/-1}.clock-wrap{grid-row:2/5;max-width:250px;align-self:center;width:100%;margin:0}.control{margin:0}.trim-control{grid-column:2}.maneuvers{grid-column:1;margin:0;align-self:center}.layers{grid-column:1/-1;display:flex;gap:18px;flex-wrap:wrap}.layers .check{margin:0}.learning-heading{display:block}.learning-heading .eyebrow{margin-bottom:9px}.lesson-buttons{grid-template-columns:1fr 1fr}.lesson-copy{grid-template-columns:1fr;gap:17px}.notes{grid-template-columns:1fr;gap:30px}.scene-status{top:24px;right:14px}.view-tools{top:94px;right:14px}.scene-bottom{left:14px;right:14px}.scene-bottom>span{font-size:9px}.scene-heading{left:20px}.scene-bottom button{padding:7px 9px}.instruments>div{padding:0 15px}.instruments strong{font-size:24px}.instruments span{font-size:9px}.fleet{justify-content:center;padding:9px 5px}.fleet button{font-size:11px;padding:8px 9px}footer span{display:none}}
@media(max-width:430px){main{padding:0 14px}.scene{height:410px}.scene-heading h2{font-size:28px}.scene-heading .eyebrow{font-size:8px}.scene-status{font-size:8px;max-width:155px}.scene-bottom>span{max-width:100px;line-height:1.4}.controls{padding:18px 14px;gap:16px}.instruments>div{padding:0 10px}.instruments strong{font-size:22px}.instruments span{font-size:8px}.fleet button{font-size:10px;padding:8px}.force-key{left:14px;max-width:calc(100% - 28px)}.under-scene{padding:11px 14px}.specs{gap:21px}h1{font-size:34px}.clock-caption{gap:9px;font-size:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}